CN103126748B - Torsion replacement type caput femoris anti-collapse minimally invasive support ball rack - Google Patents
Torsion replacement type caput femoris anti-collapse minimally invasive support ball rack Download PDFInfo
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- CN103126748B CN103126748B CN201210532891.6A CN201210532891A CN103126748B CN 103126748 B CN103126748 B CN 103126748B CN 201210532891 A CN201210532891 A CN 201210532891A CN 103126748 B CN103126748 B CN 103126748B
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- tupelo
- anchor
- arcuate tab
- sleeve
- sheet
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Abstract
The invention relates to the field of medical apparatus and instruments, in particular to a torsion replacement type caput femoris anti-collapse minimally invasive support ball rack. The torsion replacement type caput femoris anti-collapse minimally invasive support ball rack is composed of shaft end pieces, a torsion, a rotating shaft head, an insertion rod, anchor pieces, clamping grooves, a spring, a spring cavity, fixing rings, an arched piece, distance control ropes, distance control holes, shaft holes, a sleeve and anchor piece grooves. The rotating shaft head is in a cylindrical shape. One of the shaft end pieces is arranged at the upper end of the rotating shaft head and connected with the rotating shaft head into a whole. The right-hexagonal-prism-shaped insertion rod is arranged at the lower end of the rotating shaft head and connected with the rotating shaft head into a whole. The anchor grooves are formed in the side walls of the lower end of the insertion rod. Each anchor piece is arranged in each anchor piece groove. The upper end of each anchor piece extends from each anchor piece groove and rises upwards in an inclined mode. Compared with the prior art, the torsion replacement type caput femoris anti-collapse minimally invasive support ball rack can greatly shorten the size of a wound and reduce injuries on the wall of a bone inner cavity.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of moment of torsion homing position type femoral head collapse Wicresoft and support ball-collecting rack.
Background technology
When prior art is produced the bone causing and is subsided because of femur head necrosis in treatment, need to be by a supporting member implantable bone inner chamber.By in the operation of supporting member implantable bone inner chamber, Wicresoft, is a major criterion of weighing operation level.And the existing supporting member of the art, such as CN202235776, CN2699849 etc., all has a common defect: supporting member, before implantable bone inner chamber, cannot dwindle its size by deformation, so that pass through from less wound.Due to the existence of this defect, the installation of existing femoral head supporting member operation all inevitably will be outputed the wound that the minimum with supporting member adapts by size, therefore cannot reach " Wicresoft " this technique effect.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, providing a kind of can significantly dwindle its minimum and pass through size before installation, after being installed to bone cavity, can return to original size again, to reach the moment of torsion homing position type femoral head collapse Wicresoft of Wicresoft's effect of operation, support ball-collecting rack.
The scheme that solves the technology of the present invention problem is:
Moment of torsion homing position type femoral head collapse Wicresoft supports ball-collecting rack, by axle head sheet, torsion spring, tupelo, inserted link, anchor sheet, draw-in groove, spring, spring cavity, retainer ring, arcuate tab, control apart from rope, control apart from hole, axis hole, sleeve and anchor film trap form.
Wherein, tupelo is cylindrical, it is holistic flat columniform axle head sheet with tupelo that the upper end of tupelo is one, the lower end of tupelo is and the tupelo inserted link that is holistic positive hexagon, on the lower end sidewall of inserted link, have a pair of anchor film trap, in each anchor film trap, be provided with an anchor sheet, the lower end of each anchor sheet and described anchor film trap are welded as a whole, and stretch out and the perk of oblique top from anchor film trap the upper end of each anchor sheet.The thickness of each anchor sheet is all less than the degree of depth of anchor film trap.The diameter of tupelo is less than the diameter of axle head sheet.
On the sidewall of tupelo, also overlap the retainer ring that has the annular being welded as a whole with tupelo.
The bottom of sleeve also has one to be holistic axle head sheet with it, also overlaps the retainer ring that has the annular being welded as a whole with sleeve on the sidewall of sleeve.On the top of sleeve, have a vertical spring cavity, the cross section of spring cavity is regular hexagon.Draw-in groove is out the annular groove on the medial wall of spring cavity.Described inserted link inserts in from top to bottom in described spring cavity and with sleeve and becomes clearance fit relationship.Between the bottom of inserted link and the bottom of spring cavity, be provided with spring.The overall diameter of sleeve is less than the diameter of described axle head sheet.
Arcuate tab is to bend to arc Nitinol sheet, and multi-disc arcuate tab is successively stack from inside to outside, and the upper and lower side of every a slice arcuate tab all has an axis hole.The axis hole of all arcuate tab aligns at vertical direction, and the upper and lower side of each arcuate tab is placed on respectively on described tupelo and sleeve and respectively between the retainer ring in tupelo and axle head sheet and between the retainer ring of the tupelo of sleeve.The axis hole of the upper and lower side of the arcuate tab of innermost layer becomes respectively interference fit relation with sleeve with tupelo, the axis hole of the upper and lower side of all the other each layer of arcuate tab becomes clearance fit relationship with tupelo with sleeve respectively.
Torsion spring is placed on tupelo, the bottom surface welding of the upper end of torsion spring and axle head sheet, the lower end of torsion spring and the upper end welding that is placed on the arcuate tab of the superiors on tupelo.
At the middle part of each arcuate tab, have a control apart from hole, control runs through all controls apart from rope to be fixed apart from hole apart from each control of Kong Bingyu, and the control of every adjacent two arcuate tab is apart from the control between hole apart from the identical length etc. of restricting.
Before the present invention is inserted to bone cavity, first that the rotation of each arcuate tab is identical and fix with hands to the position of the arcuate tab with innermost layer, make the present invention become the framework of a D font, then with operating forceps, diaxon dististyle is applied to folder power in opposite directions, inserted link moves downward, under the compressing on two anchor sheet edges in the bottom surface of draw-in groove in retraction anchor film trap separately, when spring is compressed to the limit, distance between diaxon dististyle reaches the shortest, now thickness of the present invention and length all reach minimum, now, only need on bone cavity wall, offer the gap that a width and length are all greater than minimum widith of the present invention and length, with regard to available operating forceps, whole device is sent in bone cavity.When it enters after bone cavity, the pressure of releasing to diaxon dististyle, under the promotion of spring, inserted link moves upward, when two height of anchor sheet and the height and position of described draw-in groove are when concordant, two anchor sheets stretch in draw-in groove, now, inserted link cannot move upward again, distance between diaxon dististyle reaches the longest, under the torsional interaction of torsion spring, being positioned at the outermost arcuate tab spindle nose that rotates rotates and drives the spindle nose rotation that rotates of each layer of arcuate tab except innermost layer arcuate tab, because control has limited the distance between adjacent two arcuate tab apart from rope, final each layer of arcuate tab is uniformly distributed in the circumference of tupelo, form a spherical framework, now the size of vertical and horizontal of the present invention all reaches maximum.
Adopt such scheme, can reach following effect:
1. because the present invention can be before entering bone cavity, what make device effectively reaches minimum by size, become a narrow framework that is similar to plane, and after entering bone cavity, can expand significantly its volume and become a three-dimensional spherical framework, therefore, only need on bone cavity wall, offer the gap that a width and length are all greater than minimum thickness of the present invention and length, with regard to available operating forceps, whole device be sent in bone cavity.This technical characterictic is " Wicresoft " effect that realizes member implantation surgery, and sufficient assurance is provided.Compared with prior art, can significantly dwindle the size of wound, reduce the damage to bone cavity wall.
2. in the present invention, torsion spring and control, apart from the setting of rope, launch to become a spheroid for overlapped arcuate tab necessary technology support are provided.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention before inserting bone cavity.
Fig. 2 is the top view of the present invention after inserting bone cavity.
Fig. 3 is the A-A section enlarged diagram of Fig. 1.
Fig. 4 is the B-B section enlarged diagram of Fig. 1.
In figure: 01. axle head sheet 02. torsion spring 03. tupelo 04. inserted link 05. anchor sheet 06. draw-in groove 07. spring 08. spring cavity 09. retainer ring 10. arcuate tab 11. controls are controlled apart from hole 13. axis hole 14. sleeve 15. anchor film traps apart from rope 12.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Moment of torsion homing position type femoral head collapse Wicresoft supports ball-collecting rack, by axle head sheet 01, torsion spring 02, tupelo 03, inserted link 04, anchor sheet 05, draw-in groove 06, spring 07, spring cavity 08, retainer ring 09, arcuate tab 10, control apart from rope 11, control apart from hole 12, axis hole 13, sleeve 14 and anchor film trap 15 form.
Wherein, tupelo 03 is cylindrical, it is holistic flat columniform axle head sheet 01 with tupelo 03 that the upper end of tupelo 03 is one, the lower end of tupelo 03 is to be the inserted link 04 of holistic positive hexagon with tupelo 03, on the lower end sidewall of inserted link 04, have a pair of anchor film trap 15, in each anchor film trap 15, be provided with an anchor sheet 05, the lower end of each anchor sheet 05 and described anchor film trap 15 are welded as a whole, and stretch out and the perk of oblique top from anchor film trap 15 upper end of each anchor sheet 05.The thickness of each anchor sheet 05 is all less than the degree of depth of anchor film trap 15.The diameter of tupelo 03 is less than the diameter of axle head sheet 01.
On the sidewall of tupelo 03, also overlap the retainer ring 09 that has the annular being welded as a whole with tupelo 03.
The bottom of sleeve 14 also has one to be holistic axle head sheet 01 with it, also overlaps the retainer ring 09 that has the annular being welded as a whole with sleeve 14 on the sidewall of sleeve 14.On the top of sleeve 14, have a vertical spring cavity 08, the cross section of spring cavity 08 is regular hexagon.Draw-in groove 06 is out the annular groove on the medial wall of spring cavity 08.Described inserted link 04 insert in from top to bottom in described spring cavity 08 and with 14 one-tenth clearance fit relationship of sleeve.Between the bottom of inserted link 04 and the bottom of spring cavity 08, be provided with spring 07.The overall diameter of sleeve 14 is less than the diameter of described axle head sheet 01.
Arcuate tab 10 is to bend to arc Nitinol sheet, and multi-disc arcuate tab 10 is successively stack from inside to outside, and the upper and lower side of every a slice arcuate tab 10 all has an axis hole 13.The axis hole 13 of all arcuate tab 10 is in vertical direction alignment, and the upper and lower side of each arcuate tab 10 is placed on respectively on described tupelo 03 and sleeve 14 and respectively between the retainer ring in tupelo 03 09 and axle head sheet 01 and between the retainer ring 09 of the tupelo 03 of sleeve 14.The axis hole 13 of the upper and lower side of the arcuate tab 10 of innermost layer respectively with 14 one-tenth interference fit relations of tupelo 03 and sleeve, the axis hole 13 of the upper and lower side of all the other each layer of arcuate tab 10 respectively with 14 one-tenth clearance fit relationship of tupelo 03 and sleeve.
Torsion spring 02 is placed on tupelo 03, the bottom surface welding of the upper end of torsion spring 02 and axle head sheet 01, the lower end of torsion spring 02 and the upper end welding that is placed on the arcuate tab 10 of the superiors on tupelo 03.
At the middle part of each arcuate tab 10, have a control apart from hole 12, control runs through all control apart from hole 12 and 12 fixing apart from hole with each control apart from rope 11, and the control of every adjacent two arcuate tab 10 is apart from the control between hole 12 apart from rope 11 identical length etc.
Before the present invention is inserted to bone cavity, first that 10 rotations of each arcuate tab are identical and fix with hands to the position of the arcuate tab 10 with innermost layer, make the present invention become the framework of a D font, then with operating forceps, diaxon dististyle 01 is applied to folder power in opposite directions, inserted link 04 moves downward, under the compressing on two anchor sheet 05 edges in the bottom surface of draw-in groove 06 in retraction anchor film trap 15 separately, when spring 07 is compressed to the limit, distance between diaxon dististyle 01 reaches the shortest, now thickness of the present invention and length all reach minimum, now, only need on bone cavity wall, offer the gap that a width and length are all greater than minimum widith of the present invention and length, with regard to available operating forceps, whole device is sent in bone cavity.When it enters after bone cavity, the pressure of releasing to diaxon dististyle 01, under the promotion of spring 07, inserted link 04 moves upward, when the height of two anchor sheets 05 and the height and position of described draw-in groove 06 are when concordant, two anchor sheets 05 stretch in draw-in groove 06, now, inserted link 04 cannot move upward again, distance between diaxon dististyle 01 reaches the longest, under the torsional interaction of torsion spring 02, being positioned at outermost arcuate tab 10 spindle nose 03 that rotates rotates and drives spindle nose 03 rotation that rotates of each layer of arcuate tab 10 except innermost layer arcuate tab 10, because control is apart from rope 11 distances that limited between adjacent two arcuate tab 10, final each layer of arcuate tab 10 is uniformly distributed in the circumference of tupelo 03, form a spherical framework, now the size of vertical and horizontal of the present invention all reaches maximum.
Claims (1)
1. a moment of torsion homing position type femoral head collapse Wicresoft supports ball-collecting rack, by axle head sheet, torsion spring, tupelo, inserted link, anchor sheet, draw-in groove, spring, spring cavity, retainer ring, arcuate tab, control is apart from rope, control is apart from hole, axis hole, sleeve and anchor film trap form, it is characterized in that: tupelo is cylindrical, it is holistic flat columniform axle head sheet with tupelo that the upper end of tupelo is one, the lower end of tupelo is and the tupelo inserted link that is holistic positive hexagon, on the lower end sidewall of inserted link, have a pair of anchor film trap, in each anchor film trap, be provided with an anchor sheet, the lower end of each anchor sheet and described anchor film trap are welded as a whole, stretch out and the perk of oblique top from anchor film trap the upper end of each anchor sheet, the thickness of each anchor sheet is all less than the degree of depth of anchor film trap, the diameter of tupelo is less than the diameter of axle head sheet, on the sidewall of tupelo, also overlap the retainer ring that has the annular being welded as a whole with tupelo, the bottom of sleeve also has one to be with it holistic axle head sheet, on the sidewall of sleeve, also overlap the retainer ring that has the annular being welded as a whole with sleeve, on the top of sleeve, have a vertical spring cavity, the cross section of spring cavity is regular hexagon, draw-in groove is out the annular groove on the medial wall of spring cavity, described inserted link inserts in from top to bottom in described spring cavity and with sleeve and becomes clearance fit relationship, between the bottom of inserted link and the bottom of spring cavity, be provided with spring, the overall diameter of sleeve is less than the diameter of the axle head sheet of sleeve bottom, arcuate tab is to bend to arc Nitinol sheet, multi-disc arcuate tab is successively stack from inside to outside, the upper and lower side of every a slice arcuate tab all has an axis hole, the axis hole of all arcuate tab aligns at vertical direction, the upper and lower side of each arcuate tab is placed on respectively on described tupelo and sleeve and respectively between the retainer ring in tupelo and axle head sheet and between the axle head sheet and retainer ring of sleeve, the axis hole of the upper and lower side of the arcuate tab of innermost layer becomes respectively interference fit relation with sleeve with tupelo, the axis hole of the upper and lower side of all the other each layer of arcuate tab becomes clearance fit relationship with tupelo with sleeve respectively, torsion spring is placed on tupelo, the bottom surface welding of the upper end of torsion spring and axle head sheet, the lower end of torsion spring and the upper end welding that is placed on the arcuate tab of the superiors on tupelo, at the middle part of each arcuate tab, have a control apart from hole, control runs through all controls apart from rope to be fixed apart from hole apart from each control of Kong Bingyu, the control of every adjacent two arcuate tab is apart from the control between hole apart from the identical length etc. of restricting, before described Wicresoft's fulcrum ball is mounted to bone cavity, first that the rotation of each arcuate tab is identical and fix with hands to the position of the arcuate tab with innermost layer, it is the framework of a D font that described Wicresoft's fulcrum ball is put up, then with operating forceps, diaxon dististyle is applied to folder power in opposite directions, inserted link moves downward, under the compressing on two anchor sheet edges in the bottom surface of draw-in groove in retraction anchor film trap separately, when spring is compressed to the limit, distance between diaxon dististyle reaches the shortest, now thickness and the length of described Wicresoft's support ball-collecting rack all reach minimum, now, only need on bone cavity wall, offer a width and length and all be greater than described Wicresoft's support minimum widith of ball-collecting rack and the gap of length, with regard to available operating forceps, whole device is sent in bone cavity, when it enters after bone cavity, the pressure of releasing to diaxon dististyle, under the promotion of spring, inserted link moves upward, when two height of anchor sheet and the height and position of described draw-in groove are when concordant, two anchor sheets stretch in draw-in groove, now, inserted link cannot move upward again, distance between diaxon dististyle reaches the longest, under the torsional interaction of torsion spring, being positioned at the outermost arcuate tab spindle nose that rotates rotates and drives the spindle nose rotation that rotates of each layer of arcuate tab except innermost layer arcuate tab, because control has limited the distance between adjacent two arcuate tab apart from rope, final each layer of arcuate tab is uniformly distributed in the circumference of tupelo, form a spherical framework, now the size of the vertical and horizontal of described Wicresoft's support ball-collecting rack all reaches maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532891.6A CN103126748B (en) | 2012-12-08 | 2012-12-08 | Torsion replacement type caput femoris anti-collapse minimally invasive support ball rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532891.6A CN103126748B (en) | 2012-12-08 | 2012-12-08 | Torsion replacement type caput femoris anti-collapse minimally invasive support ball rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103126748A CN103126748A (en) | 2013-06-05 |
| CN103126748B true CN103126748B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210532891.6A Active CN103126748B (en) | 2012-12-08 | 2012-12-08 | Torsion replacement type caput femoris anti-collapse minimally invasive support ball rack |
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| CN (1) | CN103126748B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059193A (en) * | 1989-11-20 | 1991-10-22 | Spine-Tech, Inc. | Expandable spinal implant and surgical method |
| CN2309126Y (en) * | 1997-08-06 | 1999-03-03 | 王岩 | Head of femur memory metal support |
| WO2007078692A3 (en) * | 2005-12-23 | 2008-12-18 | Univ Leland Stanford Junior | Systems and methods for fixation of bone with an expandable device |
| WO2008096363A3 (en) * | 2007-02-07 | 2009-12-03 | N.M.B. Medical Applications Ltd. | Bone implant |
| CN101999926A (en) * | 2010-12-04 | 2011-04-06 | 兰州西脉记忆合金股份有限公司 | Umbrella shaped memory alloy support in femoral head |
| CN102319127A (en) * | 2011-09-30 | 2012-01-18 | 李峰 | Built-in bone support device |
| CN102626338A (en) * | 2008-01-14 | 2012-08-08 | M·P·布伦策尔 | Apparatus and methods for fracture repair |
| EP2131790B1 (en) * | 2007-02-22 | 2012-10-24 | Kyphon SÀRL | Expandable devices for emplacement in bone and other body parts |
| CN102743242A (en) * | 2012-07-13 | 2012-10-24 | 中南大学湘雅医院 | Support device for treating ONFH (osteonecrosis of femeral head) |
-
2012
- 2012-12-08 CN CN201210532891.6A patent/CN103126748B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5059193A (en) * | 1989-11-20 | 1991-10-22 | Spine-Tech, Inc. | Expandable spinal implant and surgical method |
| CN2309126Y (en) * | 1997-08-06 | 1999-03-03 | 王岩 | Head of femur memory metal support |
| WO2007078692A3 (en) * | 2005-12-23 | 2008-12-18 | Univ Leland Stanford Junior | Systems and methods for fixation of bone with an expandable device |
| WO2008096363A3 (en) * | 2007-02-07 | 2009-12-03 | N.M.B. Medical Applications Ltd. | Bone implant |
| EP2131790B1 (en) * | 2007-02-22 | 2012-10-24 | Kyphon SÀRL | Expandable devices for emplacement in bone and other body parts |
| CN102626338A (en) * | 2008-01-14 | 2012-08-08 | M·P·布伦策尔 | Apparatus and methods for fracture repair |
| CN101999926A (en) * | 2010-12-04 | 2011-04-06 | 兰州西脉记忆合金股份有限公司 | Umbrella shaped memory alloy support in femoral head |
| CN102319127A (en) * | 2011-09-30 | 2012-01-18 | 李峰 | Built-in bone support device |
| CN102743242A (en) * | 2012-07-13 | 2012-10-24 | 中南大学湘雅医院 | Support device for treating ONFH (osteonecrosis of femeral head) |
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| CN103126748A (en) | 2013-06-05 |
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