CN105877880A - Artificial knee joint and tibia component and femur component thereof - Google Patents
Artificial knee joint and tibia component and femur component thereof Download PDFInfo
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- CN105877880A CN105877880A CN201610023838.1A CN201610023838A CN105877880A CN 105877880 A CN105877880 A CN 105877880A CN 201610023838 A CN201610023838 A CN 201610023838A CN 105877880 A CN105877880 A CN 105877880A
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- tibial
- protuberance
- femoral component
- knee joint
- artificial knee
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/64—Knee joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2002/607—Lower legs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2002/608—Upper legs
Abstract
The invention discloses an artificial knee joint and a tibia component and a femur component thereof. The tibial component comprises an upper surface, a lower surface opposite to the upper surface and a first groove. The first groove penetrates through the upper surface and the lower surface and is used for accommodating the cruciate ligament. The tibial component is provided with at least one first bulge on the lower surface. The first protrusion has a plurality of first through holes. The tibial component carries the femoral component. The femoral component includes a second recess. The second groove is also used for accommodating the cruciate ligament, and at least one second bulge is arranged on one surface of the femur component far away from the tibia component. The second protrusion has a plurality of second perforations. The artificial knee joint can be stably arranged after being implanted without bone nails, and the cruciate ligament retention type operation can be adopted to maintain the stability of the joint so as to reduce the abrasion of a new joint.
Description
Technical field
The present invention is about a kind of artificial joint, especially with regard to a kind of artificial knee joint and tibial thereof and femur structure
Part.
Background technology
Knee joint is joint maximum in human body, and it is responsible for supporting human body weight and making lower limb be carried out good bending
Stretch activity.It includes the femur condyle of distal femur, the tibial plateau of proximal tibia, (before such as, cross is tough for ligament
Band, posterior cruciate ligament, medial ligament and lateral ligament etc.), articular surface cartilage and meniscus.But joint of the lower extremity
Development limitations, stance are bad, hyperkinesia or aging often lead to articular cartilage and meniscal abrasion, make knee joint close
Condyle lubricating fluid tails off, and causes the gonalgia, swelling or the dyskinesia, such as degenerative knee joint such as difficulty of crouching of squatting
Arthritis.More serious, it will cause the phenomenon of knee joint inflection (O type lower limb) so that sufferer produces difficulty on foot.
Although, total knee replacement operation (total keen joint replacement) is the Therapeutic Method of aforementioned disorders
In maximally efficient person, and after prosthetic knee implant, can effectively reduce because of arthritis and the pain caused because of joint deformity
Pain, and the active level in joint can be improved, but still there is its shortcoming.
Being currently used for the artificial knee joint of total knee replacement operation, the most as illustrated in figs. 9a and 9b, artificial knee joint closes
Save and be made up of femoral implant a and tibial component b collocation.Tibial component b is again by tibia flat board b1, joint spacer
B2, and tibia implanting portion b3 composition.Femoral implant a hammers into the femur condyle of femur F e by hip nail a2
In, tibial component b is then fixedly arranged on the tibial plateau (tibial of human body via the tibia implanting portion b3 implanting tibia T
plateau).And the groove a3 of center projections b22 in joint spacer b2 and femoral implant a is correspondingly arranged and is subject to
To spacing so that femoral implant a is able to be resisted against the loading end of joint spacer b2 towards the abutment face a1 of tibia T
B21 carries out relative turn, and makes patient's lower limb be carried out flexion and extension.
But artificial knee joint has its service life, the instead joint spacer of meniscus of knee joint (meniscus)
B2, is produced consume and cannot be continuing with, and this kind existing by the friction of femoral implant a abutment face a1
Artificial knee joint generally needs again to replace between 15-20.
It addition, when patient's motion of knee joint angle is excessive or motion is excessively violent, will make in joint spacer b2
Center projections is by excessive wear, or deviates from the groove a3 of femoral implant a and cause stremma, even make pass
Center projections b22 laterally clashing or rotating and severed by femoral implant a on joint liner b2.
In the case of this, also must again replace artificial knee joint.
Under the above-mentioned situation that must again replace artificial knee joint, owing to script tibia implanting portion b3 or hip nail a2 divides
The other wound being caused proximal tibia or distal femur is the hugest, then implants new femoral implant a or tibia group
During part b, need additionally on the long axis direction of femur F e or tibia T, to squeeze into long nail, make femoral implant a or shin
Bone assembly b will not loosen and can consolidate and be arranged in femur F e or tibia T.But, this kind additionally squeezes into nail
Mode, by producing extra injury for patient bone, even must implant new femoral implant a or tibia again
During assembly b, for Maintenance Unit bone implant a in femur F e or tibial component b the steadiness on tibia T, need to beat
Enter longer nail, but now cause more serious injury.Therefore, nail how can not be used can to make implantation
Artificial joint component is firmly arranged at implant site, for the problem that this area is the most to be resolved.
It addition, when femoral implant a or tibial component b implanted femur condyles or tibial plateau respectively, orthopedist
One layer of bone water would generally be coated with femur condyle or tibial component b on contact surface with tibial plateau in femoral implant a
Mud (or biology glue) so that it is increase femoral implant a or the degree of stability of tibial component b.But, if bone cement
Before not solidifying, easily enter in body circulation via the blood vessel on surgical injury position, the most then cause affected part region
Skin or muscular tissue are downright bad, heavy then cause myocardial infarction to cause death.Therefore, how bone cement is being reduced
Consumption time, remain to make the artificial joint component of implantation possess certain degree steadiness, be also this area the most still
Problem to be solved.
Furthermore, use Fig. 9 A and this kind of existing artificial knee joint shown in Fig. 9 B to carry out total knee replacement operation
Time, it is necessary to by anterior cruciate ligament (anterior cruciate ligament) and the posterior cruciate ligament (posterior of patient
Cruciate ligament) excision.Consequently, it is possible to the relative motion of femoral implant a and tibial component b is only capable of relying on
The cooperation of center projections b22 on the groove a3 of femoral implant a and joint spacer b2 that is correspondingly arranged, causes
Patient's knee joint is not enough in postoperative degree of stability, and patient's knee joint is in the postoperative bending that cannot be carried out too wide-angle.Cause
This, the artificial knee joint developing the art formula being applicable to ligamentum cruciatum conservative when carrying out total knee replacement operation closes
Joint, thus retains anterior cruciate ligament and the posterior cruciate ligament of patient, is also this area problem the most to be resolved.
Summary of the invention
Because the deficiencies in the prior art, inventor obtains the present invention after research and development.The purpose of the present invention is for providing a kind of people
Work knee joint and tibial thereof and femoral component, comprise tibial and femoral component, so that patient replaces in the future
Without using nail firm after implanting to arrange during artificial knee joint.
Additionally, another object of the present invention is for providing a kind of artificial knee joint and tibial thereof and femoral component, comprise
Tibial and femoral component, with in time carrying out replacement knee in arthroplasty, can take the art formula of ligamentum cruciatum conservative,
Maintain joint stability degree, to reduce the abrasion in new joint.
The present invention provides a kind of artificial knee joint, comprises tibial and femoral component.Tibial include upper surface,
The lower surface relative with upper surface and the first groove.First groove runs through upper surface and lower surface, and in order to accommodating ten
Word ligament.And tibial is provided with at least one first protuberance in lower surface.First protuberance has multiple first
Perforation.Tibial carrying femoral component.Femoral component includes the second groove.Second groove is also in order to accommodating cross
Ligament, and femoral component is in away from being provided with at least one second protuberance on the surface of tibial.Second protuberance
There is multiple second perforation.
In one embodiment of this invention, wherein the first protuberance has one first blade part and one first basilar part, should
First basilar part is arranged between this first blade part and this lower surface, and this first blade part extends along direction gradually
Thinning.
In one embodiment of this invention, wherein this first blade part has and keeps out of the way otch.
In one embodiment of this invention, wherein this tibial has a through hole, this through hole and this first substrate
Portion is the most overlapping.
In one embodiment of this invention, wherein this tibial has one first side wall, and this first side wall has multiple
First hole.
In one embodiment of this invention, wherein, the material of this first side wall be titanium, titanium alloy, vitallium or
316 rustless steels.
In one embodiment of this invention, wherein this femoral component has two support slots, and this two support slot lays respectively at this
The opposite sides of the second groove.
In one embodiment of this invention, wherein the second protuberance has one second blade part and one second basilar part, should
Second basilar part is arranged between this second blade part and this surface away from this tibial of this femoral component, and should
It is the most thinning that second blade part extends along direction.
In one embodiment of this invention, wherein this second protuberance has at least one locating dowel, and this locating dowel is arranged at
This second protuberance stage casing.
In one embodiment of this invention, artificial knee joint comprises at least one liner further, and liner is positioned at tibial
And between femoral component, and this liner is arranged at the upper surface of tibial.
In one embodiment of this invention, wherein liner has one second side wall, and this second side wall has multiple second hole
Hole.
In one embodiment of this invention, wherein the material of this second side wall be titanium, titanium alloy, vitallium or
316 rustless steels.
In one embodiment of this invention, wherein liner has an abrasion gage.
The present invention separately provides a kind of tibial, includes the upper surface lower surface relative with upper surface and first recessed
Groove.First groove runs through upper surface and lower surface, and in order to accommodating ligamentum cruciatum.Tibial is provided with in lower surface
At least one first protuberance.This first protuberance has multiple perforation.
In one embodiment of this invention, at least one sidewall around this first groove of wherein this tibial sets
It is equipped with an engaging rill.
In one embodiment of this invention, wherein the first protuberance has one first blade part and one first basilar part, should
First basilar part is arranged between this first blade part and this lower surface, and this first blade part along extend along direction by
Gradual change is thin.
In one embodiment of this invention, wherein this first blade part has and keeps out of the way otch.
In one embodiment of this invention, wherein this tibial has a through hole, this through hole and this first substrate
Portion is the most overlapping.
In one embodiment of this invention, wherein this tibial has one first side wall, and this first side wall has multiple
First hole.
In one embodiment of this invention, wherein, the material of this first side wall be titanium, titanium alloy, vitallium or
316 rustless steels.
The present invention provides again a kind of femoral component, is correspondingly arranged with a tibial, and tibial carrying femoral component.
Femoral component includes the second groove.Second groove is in order to accommodating ligamentum cruciatum.And, femoral component is in away from tibia structure
At least one second protuberance it is provided with on the surface of part.This second protuberance respectively has multiple second perforation.
In one embodiment of this invention, wherein this femoral component has two support slots, and this two support slot lays respectively at this
The opposite sides of the second groove.
In one embodiment of this invention, wherein the second protuberance has one second blade part and one second basilar part, should
Second basilar part is arranged between this second blade part and this surface away from this tibial of this femoral component, and should
It is the most thinning that second blade part extends along direction.
In one embodiment of this invention, wherein this second protuberance has at least one locating dowel, and this locating dowel is arranged at
This this second protuberance stage casing.
The present invention provides again a kind of artificial knee joint, comprises tibial and femoral component.Tibial includes table
Face and the lower surface relative with upper surface.Tibial is provided with at least one first protuberance in lower surface, and first
Protuberance has multiple first perforation.Tibial carrying femoral component.Femoral component is in the surface away from tibial
On be provided with at least one second protuberance.Second protuberance has multiple second perforation, and tibial carrying femur
Component.
The present invention provides again a kind of tibial, includes upper surface and the lower surface relative with upper surface.Tibia structure
Part is provided with at least one first protuberance in lower surface.First protuberance has multiple first perforation.
The present invention provides again a kind of femoral component, is correspondingly arranged with a tibial, and tibial carrying femoral component.
Femoral component is in away from being provided with at least one second protuberance on the surface of tibial, the second protuberance has multiple
Second perforation.
In sum, according to the artificial knee joint of the present invention and tibial thereof and femoral component, because of its tibial and
Femoral component is respectively arranged with at least one first protuberance and the second protuberance, and the first protuberance and second protrudes
Portion is respectively provided with multiple first perforation and multiple second perforation.And implant tibia respectively in tibial and femoral component
After platform (tibial plateau) and femur condyle (femoral condyles), the first protuberance inserts tibial plateau,
And second protuberance then insert femur condyle, bone trabecula (bone trabeculae) can be raw in postoperative agglutination
Length, through the first perforation and the second perforation, thus makes tibial and femoral component be fixed in its implant site.With
Time, if in the future when needs replace artificial knee joint again, the most also can be by bone trabecula in the first perforation be bored a hole with second
Growth fix replaced tibial or femoral component, and need not be fixed by extra nail, to subtract
Few injury for patient.
Additionally, the artificial knee joint of the foundation present invention and tibial and femoral component thereof are in addition to having above-mentioned effect, in
Wherein in an embodiment, more it is further provided with respectively housing patient's knee joint ten because of tibial and femoral component
Word ligament and the first groove being mutually correspondingly arranged and the second groove, make orthopedist in carrying out total knee arthroplasty
Time, the art formula of ligamentum cruciatum conservative can be taked, to maintain the degree of stability of postoperative ankle, and thus reduce new joint
Abrasion.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.Wherein,
Fig. 1 is the artificial knee joint combination schematic diagram of presently preferred embodiments of the present invention.
Fig. 2 is the schematic diagram of femoral component in the artificial knee joint shown in Fig. 1.
Fig. 3 is tibial and the schematic diagram of liner in the artificial knee joint shown in Fig. 1.
Fig. 4 A is that the artificial knee joint shown in Fig. 1 implants patient's knee joint and the signal observed with front side-rear direction
Figure.
Fig. 4 B is that the artificial knee joint shown in Fig. 1 implants patient's knee joint and the signal observed with inner side-lateral direction
Figure.
Fig. 4 C is that the tibial of the artificial knee joint shown in Fig. 1 shows with the femoral component implantation kneed direction of patient
It is intended to.
Fig. 5 A to 5G is the schematic diagram of the tibial of the artificial knee joint shown in Fig. 1.
Fig. 6 A to 6C is the tibial schematic diagram with liner of the artificial knee joint shown in Fig. 1.
Fig. 7 A to 7B is the artificial knee joint combination schematic diagram of another preferred embodiment of the present invention.
Fig. 8 A is that the tibial of the artificial knee joint shown in Fig. 1 uses schematic diagram with the collocation of auxiliary implantation piece.
Fig. 8 B to Fig. 8 G be the artificial knee joint shown in Fig. 2 tibial in the configuration of different first protuberances show
It is intended to.
Fig. 8 H is the schematic diagram of the another kind of femoral component of the artificial knee joint of presently preferred embodiments of the present invention.
Fig. 9 A to 9B is the schematic diagram of existing artificial knee joint.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention being described, the most identical element is by with identical reference marks in addition
Explanation.Additionally, must first illustrate, " nearside or near-end (proximal) " used in following example, " remote
Side or far-end (distal) ", " front side (anterior) ", " rear side (posterior) ", " inner side (medial) ", and
" outside (lateral) " etc., all according to the definition of anatomy posture Yu direction indication.That is, to be referred to as towards rostral
Nearside, is referred to as distally towards foot side；And it is referred to as front side with medial veutro, after medial dorsal part is referred to as
Side；With referred to as inner side, medial Central Line, with referred to as outside, the Central Line away from health.Additionally, this
Though bright following embodiment illustrates as a example by the knee joint of human patients, but the present invention is not limited thereto.That is,
Artificial knee joint provided in the following embodiment of the present invention, it is possible to be applicable to other and there is same or like dissection structure
In the knee joint of the animal made.
First, refer to Fig. 1, Fig. 4 A and Fig. 4 B, Fig. 1 is the artificial knee joint group of presently preferred embodiments of the present invention
Closing schematic diagram, Fig. 4 A and Fig. 4 B is that the artificial knee joint shown in Fig. 1 implants the kneed schematic diagram of patient, Fig. 4 A
Shown in direction of observation be patient kneed front side-rear side (anterior-posterior) direction, and institute in Fig. 4 B
The direction of observation shown is patient kneed medial-lateral (medial-lateral) direction.The wherein femur shown in figure
Fe, tibia T, fibula Fi are only outline and draw with the relative position of patella P, and art of the present invention has logical
Often skill is according to depicted in the accompanying drawing of the present invention and coordinate following description simultaneously, from it should be apparent that the artificial knee joint of the present embodiment
Joint K after implanting with above open femur F e, tibia T, fibula Fi and patella P relative position with relation is set.
Artificial knee joint K comprises tibial 1 and femoral component 2.Tibial 1 includes upper surface 11 and upper table
The lower surface 12 that face 11 is relative, tibial 1 is provided with at least one first protuberance 13 in lower surface 12, and
The present embodiment is illustrated as a example by being provided with multiple first protuberance 13.First protuberance 13 respectively has at least one
First perforation 14, and the present embodiment is also illustrated as a example by being provided with multiple first perforation 14.And femoral component 2
Then it is correspondingly arranged with tibial 1, and the upper surface 11 of tibial 1 carries femoral component 2.The present embodiment
" carry " the following two mode that comprises: femoral component 2 towards the surface 22 of tibial 1 directly against tibia
Mode on the upper surface 11 of component 1, or make femoral component by the buffering of another component (the details will be described later)
2 are carried on the upper surface 11 of tibial 1 and femoral component 2 is towards the surface 22 of tibial 1 and tibia structure
The upper surface 11 of part 1 is not directly contacted with, and is the state of carrying indirectly.Specifically, femoral component 2 is to slide
It is configured on tibial 1 dynamicly.As shown in FIG., the upper surface 11 of tibial 1 is directed towards femoral component 2
Surface, and be available for liner 3 engaging arrange, the lower surface 12 of tibial 1 be then in implant after, substantially
The surface of contact proximal tibia.The material of tibial 1 can be the metal material of biocompatibility, includes but not limited to
Titanium, titanium alloy, vitallium (Co-Cr-Mo alloy) or 316 rustless steels (316stainless steel).
Refer again to Fig. 1 to Fig. 3, Fig. 2 is the schematic diagram of femoral component, Fig. 3 in the artificial knee joint shown in Fig. 1
Schematic diagram for tibial in the artificial knee joint shown in Fig. 1 Yu liner.Femoral component 2, substantially in an arcuation, is wrapped
Containing one second groove 25, and femoral component 2 is divided into outside condyles 2a and inner side condyles 2b by the second groove 25,
And linked by linking part 2c.Meanwhile, linking part 2c also can be as the slip of patella P (as shown in Figure 4 B)
Face.Fig. 3 is tibial and the schematic diagram of liner in the artificial knee joint shown in Fig. 1.It addition, tibial 1
Also include one first groove 15, and the first groove 15 runs through upper surface 11 and lower surface 12, and by tibial
1 is divided into Part I (outside) 1a with Part II (inner side) 1b, Part I 1a and Part II 1b then
Linked by linking part 1c.Outside condyles 2a of femoral component 2 is then corresponding and is slidably disposed in tibia
On Part I (outside) 1a of component 1；Similarly, inner side condyles 2b of femoral component 2 is then corresponding and can
It is slidingly arranged on Part II (inner side) 1b of tibial 1.
And carry out para-position to allow surgical doctor be easier handling by femoral component 2 in operation process and can allow
It is easy to force in implantation, is each provided with the most further on the opposite sides limit of relative second groove 25 of femoral component 2
At least one support slot 26, accommodates for fixture and force.Support slot 26 can be square groove, wedge-shaped slot, or bulbous recess,
The present invention does not do any restriction at this, it is only necessary to it can engaging corresponding with surgical clamping device.And the volume cost of support slot 26 is sent out
Bright also it is not intended to.
Vowing additionally, the degree of depth of the first groove 15 is preferably approximately tibial 1 in sagittal axially (sagittal axial)
30% to 90% of length on shape is axial, is more preferably 50% to 80%, tough in order to the first accommodating front cross of groove 15
Band ACL and posterior cruciate ligament PCL (as shown in Figure 4 A).And second groove 25 degree of depth is horizontal in patient's knee joint
Femoral component 2 preferably it is approximately along the projected length that sagittal is axial horizontal in patient's knee joint on tangent plane (traverse plane)
Along the 30% to 90% of the axial projected length of sagittal on tangent plane (traverse plane), it is more preferably 50% to 80%,
Anterior cruciate ligament ACL and posterior cruciate ligament PCL is housed in order to the second groove 25.Aforementioned depth and measurement of length,
It is to implant patient's knee joint and flexion angle is zero (to be equivalent to patient for standing with tibial 1 and femoral component 2
Attitude or lower limb beat straight state) situation on the basis of.And the technical field of the invention tool usually intellectual is from answering
Understanding, the degree of depth of aforementioned first groove 15 and tibial 1 are recessed in the ratio of sagittal axis length upwards and second
Groove 25 degree of depth and femoral component 2 are long along the projection that sagittal is axial on patient's knee joint cross section (traverse plane)
The ratio of degree, two ratios it be not necessary for identical, it is only necessary to makes the first groove 15 and the second groove 25 be enough to accommodating front ten
Word ligament ACL and posterior cruciate ligament PCL, and also can be adjusted for practical situation.
As shown in Fig. 1, Fig. 4 A and Fig. 4 B, tibial 1 is in the tibial plateau (tibial plateau) implanting patient
After, the first protuberance 13 can insert tibial plateau.Tibial plateau refers to tibia T in proximal tibia (tibial proximal
End) part and in a platform-like.And in postoperative agglutination, bone trabecula (bone trabeculae) will be raw
Long through the first perforation 14 on the first protuberance 13, thus tibial 1 will be fixed in tibial plateau.Meanwhile,
If need to go again replacement because of component wear in the future, and after row implants new tibial 1 again, it is possible to little by bone
Beam growth in the first perforation 14 fixes replaced tibial 1, and need not by extra nail in addition
Fixing, to reduce the injury of the tibia T for patient.Further, the first perforation 14 quantity on the first protuberance 13
The most, then bone trabecula growth catches the first protuberance 13 with the effect of fixed tibial component 1 through the first perforation 14
The best.First protuberance 13 preferred thickness is then between 0.1 centimetre to 0.7 centimetre (cm), is more preferably 0.3
Centimetre to 0.4 centimetre (cm).Herein the thickness of the first protuberance 13 then refer on the first protuberance 13 with lower surface
The thickness of 12 junctions.Additionally, in preferably enforcement state, each first protuberance 13 then has multiple first and wears
Hole 14.First perforation 14 distribution modes on the first protuberance 13 are preferably by neighbouring tibial 1 to far
To be distributed by dredging close mode on the direction of tibial 1.And the aperture of the first perforation 14 is preferably 1 millimeter extremely
Between 2 millimeters (mm), the first perforation 14 is preferred each other between then with 3 millimeters to 5 millimeters.Additionally,
In preferably enforcement state, the surface of each first protuberance 13 can be processed further the table being processed as having roughening
Face, for example with sandblasting or the method for chemical etching, so that bone trabecula is grown on first in postoperative agglutination
The surface of protuberance 13.
Refer again to Fig. 8 B to Fig. 8 E, in order to be reduced to the risk of bursting apart of the first protuberance 13 in implantation process, the
One protuberance 13 can be further designed to have one first basilar part 132 and one first blade part 131.First
Basilar part 132 can be rectangle (such as Fig. 8 B), square (such as Fig. 8 C), strip, trapezoidal (such as Fig. 8 D and Fig. 8 E),
Or wedge shape etc., the present invention is also not intended to be limited in any at this, as long as providing a wider contact pedestal and making the first blade
Portion 131 is firm to be arranged.First blade part 131 towards the direction away from tibial 1 (that is from lower surface 12
Extend towards distal tibial direction) extend.Meanwhile, to extend along direction the most thinning for the first blade part 131.
And femoral component 2 is in away from being provided with at least one second protuberance 23 on the surface 21 of tibial 1, and
The present embodiment is illustrated as a example by being provided with multiple second protuberance 23.Second protuberance 23 respectively has at least one
Two perforation 24, and the present embodiment is also illustrated as a example by being provided with multiple second perforation 24.Femoral component 2 remote
From the surface 21 of tibial 1, as in figure 2 it is shown, be the inner surface of the femoral component 2 presenting arc structure,
And after implanting, can substantial exposure distal femur.The material of femoral component 2 can be the metal material of biocompatibility equally
Material, such as titanium alloy, vitallium or 316 rustless steels (316stainless steel).And with the first protuberance 13
Similar, equally in order to be reduced to the risk of bursting apart of the second protuberance 23 in implantation process, the second protuberance 23 can also
It is further designed to that there is one second basilar part and one second blade part (not shown).The configuration choosing of the second basilar part
With identical with the first basilar part 132, as long as providing a wider contact pedestal and making the firm setting of the second blade part i.e.
Can, the present invention is also not intended to be limited in any at this.Second blade part is towards the arc shaped inside surface 21 away from tibial 1
Direction (that is from surface 21 towards near end of thighbone direction extend) extend.Meanwhile, the second blade part also prolongs along it
Stretch direction the most thinning.
With tibial 1 analogously, femoral component 2 is in the femur condyle (femoral condyles) of implanted femur Fe
After, the second protuberance 23 can insert the femur condyle of correspondence.And in postoperative agglutination, bone trabecula (bone
Trabeculae) by growth through the second perforation 24 on the second protuberance 23, thus femoral component 2 will be fixed in
Femur condyle.Meanwhile, if need to go replacement because of component wear in the future, and row implants new femoral component 2 more again
Afterwards, it is possible to fix replaced femoral component 2 by bone trabecula growth in the second perforation 24, and need not
Fixed by extra nail, to reduce the injury for patient.Second protuberance 23 preferred thickness is then
Between 0.1 centimetre to 0.7 centimetre (cm), it is more preferably at 0.3 centimetre to 0.4 centimetre (cm).Second protrudes herein
The thickness in portion 23 then refers to the thickness on the second protuberance 23 with junction, surface 21.Additionally, preferably implementing
In state, each second protuberance 23 is then respectively provided with multiple second perforation 24.Second perforation 24 is at the second protuberance
Distribution mode on 23 preferably by proximal femur component 2 on the direction away from femoral component 2 with close by dredging
Mode is distributed.And the aperture of the second perforation 24 is preferably between 1 millimeter to 2 millimeters (mm), and the second perforation
24 are preferred each other between then with 3 millimeters to 5 millimeters.Additionally, in preferably enforcement state, each second
The surface of protuberance 23 can be processed further the surface being processed as having roughening, for example with sandblasting or chemistry erosion
The method carved, so that bone trabecula is grown on the surface of the second protuberance 23 in postoperative agglutination.
Although additionally, the first protuberance 13 in the present embodiment and the second protuberance 23 are to be integrally formed in tibia
The lower surface 12 of component 1 illustrates as a example by the arc shaped inside surface 21 of tibial 1 with femoral component 2,
But the present invention is not limited thereto.That is, in other enforcement state, the first protuberance 13 and the second protuberance 23
Also detachable design be can take, in time using, lower surface 12 and the femoral component of tibial 1 are separately assembled to
2 away from the arc shaped inside surface 21 of tibial 1.
The most again with reference to Fig. 4 A and Fig. 4 B, after tibial 1 implants patient's tibial plateau, patient's knee joint
Anterior cruciate ligament ACL and posterior cruciate ligament PCL then can be contained in the first groove 15.Same, in femur
After patient femur's far-end implanted by component 2, patient kneed anterior cruciate ligament ACL and posterior cruciate ligament PCL then can
It is contained in the second groove 25.Therefore, artificial knee joint K is planted by orthopedist in carrying out replacement knee in arthroplasty
After entering patient's knee joint, the art formula of ligamentum cruciatum conservative can be taked, that is in time making artificial knee joint K implant
Need not excise and retain the anterior cruciate ligament ACL and posterior cruciate ligament PCL of patient, to maintain postoperative patient joint
Degree of stability, and thus reduce the abrasion in new joint.Simultaneously, it is possible to make knee joint still retain suitable activity certainly in postoperative
By degree (such as flexing, stretching, extension, outward turning, inward turning, turn up and varus etc.).
And for ease of the implantation of tibial 1, in the present embodiment, the first protuberance 13 is towards away from tibial 1
(that is extending towards distal tibial direction from lower surface 12) extends in direction.Meanwhile, the first protuberance 13 prolongs along it
Stretch direction the most thinning, and in a fin-like or in a blade-like.And the implantation of tibial 1, including but not
It is limited to hammer into and (directly tibial 1 is connected to proximal tibia and applies and be substantially parallel to tibia long axis direction
Power, squeezes into tibial plateau by tibial 1), slip into that (slide-in, by sliding to rear direction on front side of knee joint simultaneously
Insert to tiltedly lower), bind and (make tibial 1 be bonding on lower surface 12 by coating bone cement or biology glue
Tibial plateau), or the combination in any of aforementioned manner.
In order to make the implantation of tibial 1 the most smooth, can be with extra auxiliary implant assembly collocation.Refer again to figure
8A.Auxiliary implant assembly 4 includes locating piece 41, fixing screw piece 42, spanner rod member 43.Locating piece 41 is substantially
In column type, two relative lateral surface are respectively provided with multiple location rill 411 (can be parallel rill or screw thread),
And there is a fixing threaded hole 412 screw togather for fixing screw piece 42 and lock, the surface that fixing threaded hole 412 is self-align piece 41
Extend internally along its long axis direction.And the Part I 1a of tibial 1, linking part 1c and Part II 1b ring
Around at least two sidewalls of the first groove 15, it is both provided with engaging rill (can be parallel rill or screw thread) 19
(as shown in Figure 3), allow the locating piece 41 can be with tibial by positioning rill 411 on locating piece 41 lateral surface
1 screws togather or engages.One end of wrench rod member 43 is locking-up end 431, relative to the other end of locking-up end 431 is then
Holding end 433, locking-up end 431 has more a locking holes 432.In another implements aspect, locking-up end 431 also may be used
Not there is a locking holes 432.Spanner rod member 43 has more one against side wall 434, is arranged at locking-up end 431 and grips
Between end 433, position is preferably set and is proximate to locking-up end 431.Locating piece 41 has further included an opening 413 and has supplied
The locking-up end 431 of spanner rod member 43 inserts, opening 413 be then self-align piece 41 lateral surface along with locating piece
41 long axis direction generally perpendicular directions extend internally.
When the locking-up end 431 of spanner rod member 43 inserts the opening 413 of locating piece 41, make locking holes 432 and fixing spiral shell
After the para-position of hole 412, fixing screw piece 42 is penetrated fixing threaded hole 412 and locking holes 432, whereby by locating piece 41
Lock with spanner rod member 43.In another implements aspect, owing to locking-up end 431 does not have locking holes 432, so
When the locking-up end 431 of spanner rod member 43 inserts the opening 413 of locating piece 41, fixing screw piece 42 is penetrated fixing
Locating piece 41 is locked by screw 412 with spanner rod member 43, whereby, is omitted locking holes 432 and fixing threaded hole
The step of 412 para-positions.Meanwhile, the linking part 1c of tibial 1 can be abutted against against side wall 434.Consequently, it is possible to
Linking part 1c is equivalent to clamping against side wall 434 by spanner rod member 43 with locating piece 41；Whereby, shin is being implanted
During bone component 1, abut against the tibial plateau of patient with the first protuberance 13 rear section of tibial 1, operation
Doctor now can abut against at patient's tibial plateau as fulcrum with the first protuberance 13, holds wrench rod member 43
Holding end 433, make the first protuberance 13 of tibial 1 cut the tibial plateau of patient to slip into mode.Pull
More can be further provided with level indicator 435a, 435b on hand lever part 43, make surgical doctor is observed tibial
1 is implanting both the Part I 1a and Part II 1b of ossa tibiale posterius component 1 the most respectively in level,
And whether both flush.
Refer again to Fig. 8 F, the first protuberance 13 can be further designed to rear side thinner thickness, and development length
Longer so that rear side part is the sharpest keen, front part the most blunt slow (similar marking knife).Owing to implanting
During, the first protuberance 13 rear lateral portion branch of tibial 1 contacts in advance and abuts against the tibial plateau of patient,
Consequently, it is possible to slip into mode tibial 1 is implanted patient's tibia condyles time, the first the sharpest keen protuberance
13 rear lateral portion branches break the hard bone tissue of patient's tibia condyles in advance, allow the stage casing of the first protuberance 13 and front side portion
Divide the hard bone tissue of incision patient's tibia condyles of being taken advantage of a situation the most whereby, to smoothly complete the implantation work of tibial 1
Industry.Additionally, due to after the implantation, the weight that the rear side of tibial 1 is born can be more than front side, and therefore first is convex
Go out portion 13 and be preferably the development length more than front side, to provide tibial 1 the most firm at the development length of rear side
Support.It is noted that Fig. 8 F is to omit the first perforation not draw, the first actual protuberance 13 includes many
Individual first perforation 14.Refer again to Fig. 8 G and Fig. 4 C, the first protuberance 13 rear section can be further provided with
Keep out of the way recess 134, preferably to meet the configuration of tibia T.Additionally, tibial 1 ought be implanted to slip into mode
During patient's tibia condyles, it is possible to use the recess 134 of keeping out of the way on the first protuberance 13 abuts against the tibial plateau of patient
As the point of application, and play the function guiding direction, it is simple to surgical doctor exerts a force downwards, and keeps out of the way recess 134
The first protuberance 13 can be allowed completely to be coated with by hard bone tissue in implantation process, also can retain some gaps；Borrow
This is avoided the first protuberance 13 to be blocked by hard bone tissue during incision tibial plateau, allows the first protuberance 13 can
Slide more easily into the tibial plateau of patient.It is noted that Fig. 8 G is the first perforation 14 omission not drawn, real
First protuberance 13 on border includes multiple first perforation 14.Additionally, the development length of the first protuberance 13 also may be used
Change, so that the degree of depth that the first protuberance 13 cuts tibial plateau has in the way of length is staggered along its long axis direction
The depth changes.
Similarly, for ease of the implantation of femoral component 2, in the present embodiment, the second protuberance 23 is towards away from femur structure
The direction (that is extending towards near end of thighbone direction from surface 21) of part 2 extends.Meanwhile, the second protuberance 23
Extend along direction the most thinning, and in a fin-like or in a blade-like.And the implantation of femoral component 2, relatively
Good is to use to hammer into or push (femoral component 2 is directly connected to distal femur and applies with to be substantially parallel to femur long
Axial power, squeezes into femur condyle by femoral component 2).Additionally, the development length of the second protuberance 23 also can edge
Its long axis direction changes, so that the degree of depth that the second protuberance 23 squeezes into femur condyle has deeply in the way of length is staggered
Shallow change.
Additionally, refer to Fig. 8 H, at sagittate section (sagittal plane) after implanting for femoral component 2 to be prevented
On sliding, the second protuberance 23 can further include a locating dowel 231, be arranged on fin-like or blade-like
The middle section position of the second protuberance 23.Thus, before implantation, corresponding femur condyle also can first be drilled location
Hole.Consequently, it is possible to after femoral component 2 implants the femur condyle of correspondence, the second protuberance 23 can be inserted foregoing
Entering the femur condyle of correspondence, locating dowel 231 then can be inserted in the hole, location being drilled in advance on femur condyle, thus makes
Obtain femoral component 2 and can consolidate setting, the generation on sagittate section will not slide or rotate.
Hammering into or in addition to pushing style except aforesaid, femoral component 2 can also use and slip into that (slide-in is closed by knee joint
Slide to rear direction on front side of joint insert to upper simultaneously), bind (by coating bone cement or biology glue in away from shin
Femoral component 2 is made to be bonding on femur condyle on the surface 21 of bone component 1), or the combination in any of aforementioned manner, implant
The femur condyle of patient.But, to implant if being used to slip into mode, then the second protuberance 23 will not be provided with and determine
Position post 231.
Refer again to Fig. 4 C, tibial 1 and femoral component 2 for the artificial knee joint shown in Fig. 1 implant patient
Kneed direction schematic diagram.In orthopedist in time carrying out replacement knee in arthroplasty, preferably can first cut tibia Fe
Cartilage portion (but the most not switching to os osseum part) outside condyles, to lower the destruction to patient's affected part sclerotin.For
It is easy to employing further slip into (slide-in) mode and tibial 1 or femoral component 2 are implanted, the first protuberance
13 or second the bearing of trend of protuberance 23 can be substantially parallel to the kneed sagittate section of patient (sagittal plane).
So, the present invention is not limited.
Refer to Fig. 5 A to Fig. 5 C, for the schematic diagram of the tibial of the artificial knee joint shown in Fig. 1.Similarly,
Slipping into mode implanted by tibial 1 for being easy to employing further, each first protuberance 13 of tibial 1 is respectively
There is one first long axis direction L1, and each first long axis direction L1 is substantially parallel to each other.Additionally, Fig. 5 A
Shown in the fin-like of each first protuberance 13 or blade-shaped structure extend to rear end from tibial 1 front end and in
An existing complete arc structure, however on arranging also can as shown in Figure 5 B, the fin-like of each first protuberance 13a or
Blade-shaped structure only starts to extend to rear end from central part and presents half arc structure.As shown in Figure 5 C, it is
Increase the structural strength of linking part 1c, reduce linking part 1c and make it be stressed because structural strength is relatively low to push away in time implanting
Squeeze and the situation of fracture occur, at least one first protuberance 13c can be set up on the lower surface 12 at linking part 1c,
In figure as a example by setting up two.
It addition, refer again to Fig. 5 D to Fig. 5 G, also for its of tibial 1 of the artificial knee joint shown in Fig. 1
Its view.If the mode beyond mode that slips into is implanted, the long axis direction of the first protuberance 13 is alternatively edge
Kneed coronal section (coronal plane) direction or other direction are arranged.That is, although as shown in Figure 5 D,
First protuberance 13 can be substantially parallel to the kneed arrow of patient so that the front end-rear extreme direction of tibial 1 is arranged
Shape tangent plane (sagittal plane).But also can as shown in fig. 5e, the first protuberance 13 is the most still with tibial 1
Front end-rear extreme direction arrange, but be not the most substantially parallel to the kneed sagittate section of patient (sagittal plane).
Or, as illustrated in figure 5f, the first protuberance 13 is then can be real so that the medial-lateral direction of tibial 1 is arranged
Matter is parallel to kneed coronal section (coronal plane) direction.Furthermore, it is possible to as depicted in fig. 5g, combination
Above-mentioned setting direction, the first protuberance 13 is arranged at the lower surface 12 of tibial 1 in crisscross mode.
Design with aforementioned first protuberance 13 is similar, in preferably enforcement state, for ease of using that slips into plant
Enter mode, as in figure 2 it is shown, each second protuberance 23 of femoral component 2 is respectively provided with one second long axis direction L2,
And each second long axis direction L2 is substantially parallel to each other.So the present invention is not limited thereto, that is, each second convex
Going out portion 23 can be to extend to rear end to present complete arc structure or only from femoral component 2 from femoral component 2 front end
Central part starts to extend to rear end and in semiarc shape structure.Or, the second protuberance 23 also can be along kneed arrow
The combination of shape tangent plane, coronal section direction or other direction or all directions is configured.
Additionally, the artificial knee joint K in the present embodiment further includes at least one liner 3.Refer to Fig. 1 and
Shown in Fig. 3, artificial knee joint K is as a example by comprising two liners 3.Liner 3 is positioned at tibial 1 and femur structure
Between part 2, and the upper surface 11 of the Part I 1a and Part II 1b of tibial 1 can be sticked in respectively.
The upper surface 11 of tibial 1 can be in a shallow discoid concave surface, and liner 3 contacts with the upper surface 11 of tibial 1
Surface then can be designed as the convex surface corresponding with shallow discoid concave surface.Liner 3 can have circular pothole, and in towards femur
The surface of component 2 is then designed as to carry outside condyles 2a of femoral component 2 or inner side condyles 2b and for its slip
Arc-shaped concave, makes liner 3 provide the function being equivalent to knee joint semilunar cartilage (meniscus).In feasible enforcement
In example, if liner 3 is in being designed as arc-shaped concave towards the surface of femoral component 2, then liner 3 is in the thickness of arc-shaped concave
Degree and liner 3 the design load of the thickness of periphery can be respectively 2mm Yu 6mm, 3mm Yu 8mm, 4mm and
10mm, 5mm and 12mm.After implanting patient's knee joint, femoral component 2 contact liner 3, and femur structure
Part 2 can carry out sliding or turn relative to tibial 1.Liner 3 has one first holding section 31, the first engaging
Portion 31 coordinates with the second holding section 16 of tibial 1, and the second holding section 16 on tibial 1 is adjacent to
One groove 15, that is as shown in Figure 3, the second holding section 16 on tibial 1 is arranged in the present embodiment
Near the place of the first groove 15 on Part I 1a and Part II 1b.As shown in Figure 3, though the present embodiment
In by liner 3 have slip arc-shaped concave and in the form of annular discs as a example by, but the present invention is not limited thereto, it is only necessary to have
Outside condyles 2a of femoral component 2 or inner side condyles 2b and the arc-shaped concave slided for it can be carried.That is lining
Pad 3 also can have circular pothole.And in the present embodiment, liner 3 material is biocompatible plastic
(biocompatible plastic), includes but not limited to medical grade polrvinyl chloride (PVC), polyethylene
(Polyethylene), polyether-ether-ketone (PEEK), Merlon (Polycarbonate), PEI resin (
Polyetherimide resin), polysulfones (Polysulfone), polypropylene (Polypropylene) or polyurethane
(Polyurethane).And when liner 3 is arranged on tibial 1, in preferably enforcement state, both only obtain
Interconnect, simultaneously with the first holding section 31 of liner 3 and the second holding section 16 of tibial 1 being positioned at inner side
First holding section 31 of liner 3 is a pole configuration and the second holding section 16 of tibial 1 is a circular perforations,
The first holding section 31 of liner 3 is made to form a pivot structure, and liner 3 with the second holding section 16 of tibial 1
Not fixing with the outside of both tibial 1, the femoral component 2 making the artificial knee joint K of implantation still can be relative to
Tibial 1 carries out the axial turn of outward turning and inward turning, to keep the freedom of postoperative patient knee joint outward turning and inward turning
Degree.But, the configuration of the present invention the first holding section 31 for liner 3 and the second holding section 16 of tibial 1
Not being any limitation as, the first holding section 31 of liner 3 can be above-mentioned pole configuration or the first holding section 31a
Latch configuration as shown in Figure 6B, or salient point as shown in Figure 6 C or projection, such as (but not limited to) hemispherical
Projection or semilune projection.And in preferable enforcement state in the present embodiment, the first holding section 31 of liner 3
As long as with the second holding section 16 of tibial 1 coordinate for male-female engagement, as which be recessed which for convex,
The present invention is not any limitation as.
And tibial 1 can be further in the upper setting of Part I (outside) 1a and Part II (inner side) 1b
There is at least one through hole 18, be as a example by multiple through holes in the present invention, but invention is not any limitation as.Through hole 18
Run through upper surface 11 and lower surface 12, and be to avoid at the base portion of the first protuberance 13.This kind of design can allow shin
The further lightweight of bone component 1, gets rid of the granule that liner 3 produces because rubbing each other with tibial 1 simultaneously.And
The diameter dimension of through hole 18, is preferred with the spacing of the first protuberance 13 adjacent less than or equal to two.
Additionally, the lateral wall of liner 3 also can be further provided with one first side wall 33, the first side wall 33 is then arranged
There is at least one first hole, be as a example by multiple first holes in the present invention, but invention is not any limitation as.After the implantation
The tissue allowing patient's implant site is kept a firm hand on fixing, allows liner 3 can link with patient articular whereby, and increases postoperative
Stable.Herein the size of the first hole then with on the first protuberance 13 or the second protuberance 23 first perforation and second
Hole dimension is identical.And the height of the first side wall 33 is preferred with account for liner 3 thickness 2/3.The material of the first side wall 33
Matter can be the metal material of bio-compatibility, includes but not limited to titanium, titanium alloy, vitallium or 316 rustless steels.
And mode of installing can be being (to protect between the first side wall 33 and liner 3 lateral wall in floating patch mode as shown in Figure 3
Have certain gap) or being attached to completely on liner 3 lateral wall as shown in Figure 6A, possibly even utilize at lining
Pad 3 lateral walls offer location hole (or locating slot) allow side wall 33 both sides be arranged in the way to insert outside liner 3
On wall, the present invention is also not intended to be limited in any at this.And side wall 33 can also be around liner 3 in the way of whole ring sets
Lateral wall.Same, in order to make the tissue of implantation tibial 1 relief patient's implant site keep a firm hand on fixing, and with trouble
Can link and increase postoperative stablizing in person joint, as shown in Figure 6A, relative two lateral walls of tibial 1 are also
One second side wall 17 can be each provided with further, the second side wall 17 is also equipped with multiple second perforation.And second
The size of side wall 17, set-up mode, and material, then can be identical with the first side wall 33 on liner 3 lateral wall,
Do not repeat them here.
Additionally, for the ease of the wear intensity observing liner 3 after surgery, the front side of liner 3 can be further provided with mill
Consumption chi 32.Abrasion gage 32 can be to present stepped as illustrated in the drawing, and is directly inscribed in metal material
Liner 3 lateral wall, front side on, or metal wire rod is imbedded the liner 3 part near front side.Whereby, doctor
Shadowgraph, the X-ray of the knee of shooting patient prosthetic knee implant K can be directly utilized, shown by observation
It is shown on X-ray abrasion gage 32 situation, the abrasion of estimation liner 3 outer ring.
And in preferably enforcement state, the upper surface 11 of tibial 1 can in a concave face, and its in the middle of
The degree of depth is come deeply compared with the degree of depth of its front end.Make liner 3 be prone to employing when assembling in operation and slip into (slide-in)
Mode engages assembling with tibial 1.But the present invention is not limited thereto, that is, in other enforcement state,
Liner 3 can be adopted bag in time making and penetrate or bury the mode of penetrating, and direct forming is in the upper surface 11 of tibial 1, thus nothing
Liner 3 first holding section 31 is needed to engage with the collocation of tibial 1 second holding section 16.Or, in time dispatching from the factory,
Liner 3 is i.e. sticked in the upper surface 11 of tibial 1.Or, liner 3 can also divide mutually with tibial 1
From, until just liner 3 being sticked on tibial 1 when performing the operation.
And in preferably enforcement state, as shown in Figure 6B, the upper surface 11 of tibial 1 can be foregoing
In one depression shallow discoid curved surface, the second holding section 16 of tibial 1 can from tibial 1 Part I 1a with
The close fore-end of Part II 1b starts to extend to stage casing part and present a chase shape, and only in neighbouring first
The center section part of groove 15 is divided into perforation configuration so that liner 3 is prone to when assembling in operation use with tibial 1
The mode of (slide-in) is slipped into towards rear extreme direction in front end, and the first holding section 31a of liner 3 the most first contacts tibia structure
The chase part of the second holding section 16 of part 1 and limited, after liner 3 continues to slip into, the first card of liner 3
Conjunction portion 31a then slides to the perforated portion of the second holding section 16 of tibial 1 and penetrates, and makes liner 3 complete and shin
The engaging of bone component 1 assembles.
It addition, as shown in Figure 6A, in preferably enforcement state, tibial 1 also can not have linking part 1c,
That is the Part I 1a and Part II 1b of tibial 1 is for being independently arranged, in time implanting, the most each implant
On corresponding tibial plateau.
It addition, the tibial 1 that the present invention also provides in a kind of tibial 1, with aforementioned artificial knee joint K is identical,
Tibial 1 includes upper surface 11 lower surface relative with upper surface 11 12 and the first groove 15, and first
Groove 15 runs through upper surface 11 and lower surface 12, and in order to accommodating anterior cruciate ligament ACL and posterior cruciate ligament PCL.
Tibial 1 is provided with at least one first protuberance 13 in lower surface 12, and the first protuberance 13 respectively has at least
One first perforation 14.Additionally, the composition of each concrete parts of tibial 1, variable condition and the company of other parts
Connect relation, be then same as, described in preceding embodiment, repeating no more in this.
It addition, the femoral component 2 that the present invention also provides in a kind of femoral component 2, with aforementioned artificial knee joint K is identical
, femoral component 2 is correspondingly arranged with tibial 1, and the upper surface 11 of tibial 1 carries femoral component 2.
Femoral component 2 comprises the second groove 25, and the second groove 25 is in order to accommodating anterior cruciate ligament ACL and posterior cruciate ligament
PCL, and femoral component 2 is in away from being provided with at least one second protuberance 23 on the surface 21 of tibial 1,
Second protuberance 23 respectively has at least one second perforation 24.Additionally, the composition of each concrete parts of femoral component 2,
Variable condition and the annexation of other parts, then be same as described in preceding embodiment, repeat no more in this.
It addition, the present invention also provides for another kind of artificial knee joint K ', it is adaptable to single condyle prosthetic replacement operation.Please
With reference to Fig. 7 A and Fig. 7 B, for the artificial knee joint combination schematic diagram of another preferred embodiment of the present invention.Artificial knee joint
Joint K ' comprises tibial 1 ' and femoral component 2 '.As it can be seen, the artificial knee joint K ' of the present embodiment is because being suitable for
In single condyle artificial knee replacement surgery, therefore compared to the femoral component 2 of aforementioned preferred embodiment and tibial 1,
Tibial 1 ' and the femoral component 2 ' of the present embodiment the most only have corresponding to femoral unicondylar portion and the structure of tibia list condyles
Type, as corresponding to inner side condyles or outside condyles, is not limited in this, and the technical field of the invention has
The generally people of knowledge is according to depicted in the accompanying drawing of the present invention and coordinate following description simultaneously, from it should be apparent that the people of the present embodiment
Work knee joint K ' it is applicable to must carry out when inner side condyles or outside condyles the concrete configuration correction of correspondence.Tibial 1 '
Including the lower surface 12 ' that upper surface 11 ' is relative with upper surface 11 ', tibial 1 ' is provided with in lower surface 12 '
At least one first protuberance 13 ', and the present embodiment is illustrated as a example by being provided with multiple first protuberance 13 '.
First protuberance 13 ' respectively has at least one first perforation 14 ', and the present embodiment is also to be provided with multiple first perforation 14 '
As a example by be illustrated.And femoral component 2 ' is substantially in an arcuation, it is correspondingly arranged with tibial 1 ', and tibial 1 '
Upper surface 11 ' carrying femoral component 2 ' (femoral component 2 ' with towards tibial 1 ' surface 22 ' directly against
Mode on the upper surface 11 ' of tibial 1 ', or made femoral component 2 ' be carried on shin by the buffering of liner 3 '
The upper surface 11 ' of bone component 1 ' is upper and femoral component 2 ' is towards surface 22 ' and tibial 1 ' upper of tibial 1 '
The mode of the carrying indirectly that surface 11 ' is not directly contacted with), and make femoral component 2 ' be slidably disposed in tibial 1 '
On.Tibial 1 ' is after the tibial plateau implanting patient, and the first protuberance 13 ' can insert tibial plateau.
And the tibial 1 ' of single condyle prosthetic replacement operation it is applicable at this kind, correspond to the structure of tibia list condyles
Type, the thickness on front side of it can than being applicable to complete artificial joint replacement surgery and there is the tibia structure of the double condyles of corresponding tibia
The thickness of part 1 is thicker.Thus, although the locating piece 41 of auxiliary implant assembly 4 cannot be used, but still may be used
Directly spanner rod member 43 lain directly against, against barricade 434, the front side that tibial 1 ' thickeies, and spanner rod member 43
Locking-up end 431 can push down the upper surface 11 ' of tibial 1 ' the most simultaneously, and first convex with tibial 1' equally
Go out front end, portion 13 ' and abut against the tibial plateau of patient.Surgical doctor abuts against patient's tibia with the first protuberance 13 ' and puts down
It is fulcrum at platform, the first protuberance 13 ' mode of slipping into of tibial 1 ' can be made too to cut the tibia of patient
Platform.
And femoral component 2 ' is in away from being provided with at least one second protuberance 23 ' on the surface 21 ' of tibial 1 ',
And the present embodiment is illustrated as a example by being provided with second protuberance 23 '.Second protuberance 23 ' has at least one
Second perforation 24 ', and the present embodiment is as a example by being provided with multiple second perforation 24 '.And femoral component 2 ' is in implanting trouble
After the knee joint of person, the second protuberance 23 ' can insert in the femur condyle of correspondence.
The tibial 1 ' of artificial knee joint K ' and femoral component 2 ' and the liner used of arranging in pairs or groups with it in the present embodiment
3 ', in addition to have corresponding change because being applicable to single condyle artificial knee replacement surgery, the particular make-up of remaining each parts,
Variable condition and the annexation of other parts, then be same as described in preceding embodiment, repeat no more in this.
It addition, the present invention also provides for the tibial 1 ' in another kind of tibial 1 ', with aforementioned artificial knee joint K '
Identical, tibial 1 ' includes the lower surface 12 ' that upper surface 11 ' is relative with upper surface 11 '.Tibial 1 '
Lower surface 12 ' is provided with at least one first protuberance 13 ', and the first protuberance 13 ' respectively has at least one first perforation
14’.Additionally, the composition of each concrete parts of tibial 1 ', variable condition and the annexation of other parts, then
It is same as, described in preceding embodiment, repeating no more in this.
It addition, the present invention also provides for the femoral component 2 ' in another kind of femoral component 2 ', with aforementioned artificial knee joint K '
Identical, femoral component 2 ' is correspondingly arranged with tibial 1 ', and femoral component 2 ' is in the surface 21 ' away from tibial 1 '
On be provided with at least one second protuberance 23 ', the second protuberance 23 ' respectively have at least one second perforation 24 '.Additionally,
The composition of each concrete parts of femoral component 2 ', variable condition and the annexation of other parts, then be same as above implementing
Described in example, repeat no more in this.
From the above, according to the artificial knee joint of the present invention and tibial thereof and femoral component, tibial and femur
Component is respectively arranged with at least one first protuberance and the second protuberance, and each first protuberance and the second projection
Not there is at least one first perforation and at least one second perforation.And implant tibia respectively in tibial and femoral component
After platform (tibia plateau) and femur condyle (femoral condyles), the first protuberance inserts tibial plateau,
And second protuberance then insert femur condyle, bone trabecula (bone trabeculae) can be raw in postoperative agglutination
Length, through the first perforation and the second perforation, thus makes tibial and femoral component be fixed in its implant site.With
Time, if in the future when needs replace artificial knee joint again, the most also can be by bone trabecula in the first perforation be bored a hole with second
Growth fix replaced tibial or femoral component, and need not be fixed by extra nail, to subtract
Few injury for patient.
Additionally, the artificial knee joint of the foundation present invention and tibial and femoral component thereof are in addition to having above-mentioned effect, in
Wherein in an embodiment, more can house patient's knee joint because its tibial and femoral component are respectively arranged with further
Ligamentum cruciatum and the first groove being mutually correspondingly arranged and the second groove, make orthopedist in carrying out total knee replacement hands
During art, the art formula of ligamentum cruciatum conservative can be taked, to maintain the degree of stability of postoperative ankle, and thus reduce new joint
Abrasion.
The foregoing is only illustrative, rather than be restricted.Any spirit and scope without departing from the present invention, and to it
The equivalent modifications carried out or change, all should be included in the claim of the present invention.
Claims (28)
1. an artificial knee joint, it is characterised in that described artificial knee joint comprises:
One tibial, it includes a upper surface, a lower surface relative with this upper surface and one first groove,
This first groove runs through this upper surface and this lower surface, and in order to an accommodating ligamentum cruciatum, this tibial is in this following table
Face is provided with at least one first protuberance, and this first protuberance has multiple first perforation；And
One femoral component, this tibial carries this femoral component, and this femoral component includes one second groove, and this is years old
Two grooves are in order to this ligamentum cruciatum accommodating, and this femoral component is in being provided with at least away from a surface of this tibial
One second protuberance, this second protuberance has multiple second perforation.
2. artificial knee joint as claimed in claim 1, it is characterised in that this tibial first recessed around this
An engaging rill it is provided with at least one sidewall of groove.
3. artificial knee joint as claimed in claim 1, it is characterised in that this first protuberance has one first cutter
Blade and one first basilar part, this first basilar part is arranged between this first blade part and this lower surface, and this first
It is the most thinning that blade part extends along direction.
4. artificial knee joint as claimed in claim 3, it is characterised in that this first blade part has to keep out of the way to be cut
Mouthful.
5. artificial knee joint as claimed in claim 3, it is characterised in that this tibial has a through hole,
This through hole is the most overlapping with this first basilar part.
6. artificial knee joint as claimed in claim 1, it is characterised in that this tibial has one first side wall,
This first side wall has multiple first hole.
7. artificial knee joint as claimed in claim 6, it is characterised in that the material of this first side wall is titanium, titanium
Alloy, vitallium or 316 rustless steels.
8. artificial knee joint as claimed in claim 1, it is characterised in that this femoral component has two support slots,
This two support slot lays respectively at the opposite sides of this second groove.
9. artificial knee joint as claimed in claim 1, it is characterised in that this second protuberance has one second cutter
Blade and one second basilar part, this second basilar part be arranged at this second blade part and this femoral component away from this tibia
Between this surface of component, and this second blade part to extend along direction the most thinning.
10. artificial knee joint as claimed in claim 1, it is characterised in that this second protuberance has the most certain
Position post, this locating dowel is arranged at this second protuberance stage casing.
11. artificial knee joints as claimed in claim 1, it is characterised in that described artificial knee joint comprises further
At least one liner, this liner is between this tibial and this femoral component, and this liner is arranged at this tibial
This upper surface.
12. artificial knee joints as claimed in claim 11, it is characterised in that this liner has one second side wall,
This second side wall has multiple second hole.
13. artificial knee joints as claimed in claim 12, it is characterised in that the material of this second side wall be titanium,
Titanium alloy, vitallium or 316 rustless steels.
14. artificial knee joints as claimed in claim 11, it is characterised in that this liner has an abrasion gage.
15. 1 kinds of tibial, it is characterised in that described tibial includes:
One upper surface, a lower surface relative with this upper surface and one first groove, this first groove runs through table on this
Face and this lower surface, and in order to an accommodating ligamentum cruciatum, it is convex that this tibial is provided with at least one first in this lower surface
Going out portion, this first protuberance has multiple first perforation.
16. tibial as claimed in claim 15, it is characterised in that this tibial first recessed around this
An engaging rill it is provided with at least one sidewall of groove.
17. tibial as claimed in claim 15, it is characterised in that this first protuberance has one first cutter
Blade and one first basilar part, this first basilar part is arranged between this first blade part and this lower surface, and this first
It is the most thinning that blade part extends along direction.
18. tibial as claimed in claim 17, it is characterised in that this first blade part has to keep out of the way to be cut
Mouthful.
19. tibial as claimed in claim 17, it is characterised in that this tibial has a through hole,
This through hole is the most overlapping with this first basilar part.
20. tibial as claimed in claim 15, it is characterised in that this tibial has one first side wall,
This first side wall has multiple first hole.
21. tibial as claimed in claim 20, it is characterised in that the material of this first side wall is titanium or titanium
Alloy, vitallium or 316 rustless steels.
22. 1 kinds of femoral component, it is characterised in that described femoral component is correspondingly arranged with a tibial, and this shin
This femoral component of bone component load-bearing, this femoral component comprises:
One second groove, this second groove is in order to an accommodating ligamentum cruciatum, and this femoral component is in away from this tibial
A surface on be provided with at least one second protuberance, this second protuberance have multiple second perforation.
23. femoral component as claimed in claim 22, it is characterised in that this femoral component has two support slots,
This two support slot lays respectively at the opposite sides of this second groove.
24. femoral component as claimed in claim 22, it is characterised in that this second protuberance has one second cutter
Blade and one second basilar part, this second basilar part be arranged at this second blade part and this femoral component away from this tibia
Between this surface of component, and this second blade part to extend along direction the most thinning.
25. femoral component as claimed in claim 22, it is characterised in that this second protuberance has the most certain
Position post, this locating dowel is arranged at this second protuberance stage casing.
26. 1 kinds of artificial knee joints, it is characterised in that described artificial knee joint comprises:
One tibial, it includes a upper surface and a lower surface relative with this upper surface, this tibial in
This lower surface is provided with at least one first protuberance, and this first protuberance has multiple first perforation；And
One femoral component, this tibial carries this femoral component, and this femoral component is in the table away from this tibial
Being provided with at least one second protuberance on face, this second protuberance respectively has multiple second perforation.
27. 1 kinds of tibial, it is characterised in that described tibial includes:
One upper surface, and a lower surface relative with this upper surface, this tibial is provided with at least in this lower surface
One first protuberance, this first protuberance has multiple first perforation.
28. 1 kinds of femoral component, it is characterised in that described femoral component is correspondingly arranged with a tibial, and this shin
This femoral component of bone component load-bearing, this femoral component is in away from being provided with at least one second on a surface of this tibial
Protuberance, this second protuberance has multiple second perforation.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16153415.1A EP3056171B1 (en) | 2015-02-13 | 2016-01-29 | Knee joint prosthesis and tibial component and femoral component thereof |
| US15/012,328 US20160235543A1 (en) | 2015-02-13 | 2016-02-01 | Knee joint prosthesis and tibial component and femoral component thereof |
| US16/366,608 US11432932B2 (en) | 2015-02-13 | 2019-03-27 | Knee joint prosthesis and tibial component thereof |
| US17/867,411 US20220346963A1 (en) | 2015-02-13 | 2022-07-18 | Knee joint prosthesis and tibial component thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104105153A TWI607746B (en) | 2015-02-13 | 2015-02-13 | Knee joint prosthesis and tibial component and femoral component thereof |
| TW104105153 | 2015-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105877880A true CN105877880A (en) | 2016-08-24 |
Family
ID=57002507
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117899.XA Active CN106031667B (en) | 2015-02-13 | 2015-03-18 | Artificial knee joint and tibia component and femur component thereof |
| CN201610023838.1A Pending CN105877880A (en) | 2015-02-13 | 2016-01-14 | Artificial knee joint and tibia component and femur component thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117899.XA Active CN106031667B (en) | 2015-02-13 | 2015-03-18 | Artificial knee joint and tibia component and femur component thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN106031667B (en) |
| TW (1) | TWI607746B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113367854A (en) * | 2021-05-24 | 2021-09-10 | 北京纳通医疗科技控股有限公司 | Tibial tray prosthesis and knee joint prosthesis |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431659A (en) * | 2018-12-17 | 2019-03-08 | 北京爱康宜诚医疗器材有限公司 | Patellar prosthesis |
| CN111281614B (en) * | 2020-03-11 | 2022-03-25 | 北京市春立正达医疗器械股份有限公司 | Knee joint prosthesis |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI607746B (en) | 2017-12-11 |
| TW201628570A (en) | 2016-08-16 |
| CN106031667A (en) | 2016-10-19 |
| CN106031667B (en) | 2018-10-16 |
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