CN103126748A - 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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- CN103126748A CN103126748A CN2012105328916A CN201210532891A CN103126748A CN 103126748 A CN103126748 A CN 103126748A CN 2012105328916 A CN2012105328916 A CN 2012105328916A CN 201210532891 A CN201210532891 A CN 201210532891A CN 103126748 A CN103126748 A CN 103126748A
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- tupelo
- anchor
- arcuate tab
- sleeve
- spring
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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 that causes and is subsided because of femur head necrosis in treatment, need to be with a supporting member implantable bone inner chamber.In the operation with supporting member implantable bone inner chamber, Wicresoft is a major criterion of weighing the operation level.And the existing supporting member of the art, such as CN202235776, CN2699849 etc., a common defective is all arranged: supporting member can't dwindle its size by deformation before the implantable bone inner chamber, so that pass through from less wound.Due to the existence of this defective, the installation of existing femoral head supporting member operation all inevitably will be left the wound that the minimum with supporting member adapts by size, therefore can't 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, can return to original size again after being installed to bone cavity, supporting ball-collecting rack with the moment of torsion homing position type femoral head collapse Wicresoft of Wicresoft's effect of reaching operation.
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 the hole, axis hole, sleeve and anchor film trap consist of.
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 to be the inserted link of holistic positive hexagon with tupelo, have a pair of anchor film trap on the lower end sidewall of inserted link, be provided with an anchor sheet in each anchor film trap, the lower end of each anchor sheet and described anchor film trap are welded as a whole, and stretch out from the anchor film trap and the perk of oblique top 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.
Also overlap the retainer ring that the annular that is welded as a whole with tupelo is arranged on the sidewall of tupelo.
The bottom of sleeve also has one to be with it holistic axle head sheet, also overlaps the retainer ring that the annular that is welded as a whole with sleeve is arranged on the sidewall of sleeve.Have a vertical spring cavity on the top of sleeve, 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.Be provided with spring between the bottom of the bottom of inserted link and spring cavity.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 the 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, the upper and lower side of each arcuate tab be placed in respectively on described tupelo and sleeve and be in respectively the retainer ring of tupelo and the axle head sheet between 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 the interference fit relation with sleeve with tupelo, the axis hole of the upper and lower side of all the other each layer 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, and weld with the upper end of the arcuate tab that is placed in the superiors on tupelo the lower end of torsion spring.
Have a control at the middle part of each arcuate tab apart from the hole, control runs through all controls apart from rope to be fixed apart from the hole apart from each control of Kong Bingyu, and the control of every adjacent two arcuate tab is apart from the control between the hole apart from the identical length etc. of restricting.
before the present invention is inserted bone cavity, first with the rotation of each arcuate tab to identical with the position of the arcuate tab of innermost layer and fix with hands, make the present invention become the framework of a D font, then with operating forceps, the diaxon dististyle is applied folder power in opposite directions, inserted link moves downward, under the compressing on two anchor sheets edge in the bottom surface of draw-in groove in retraction anchor film trap separately, when spring is compressed to the limit, distance between the diaxon dististyle reaches the shortest, this moment, thickness of the present invention and length all reached minimum, at this moment, only need to offer a width and length all greater than the gap of minimum widith of the present invention and length on the bone cavity wall, with regard to available operating forceps, whole device is sent in bone cavity.after it enters bone cavity, the pressure of releasing to the diaxon dististyle, under the promotion of spring, inserted link moves upward, when the height of two anchor sheets is concordant with the height and position of described draw-in groove, two anchor sheets stretch in draw-in groove, at this moment, inserted link can't move upward again, distance between the 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 arcuate tab except the innermost layer arcuate tab, limited the distance between adjacent two arcuate tab apart from restricting due to control, final each layer arcuate tab is uniformly distributed in the circumference of tupelo, form a spherical framework, this moment, the size of vertical and horizontal of the present invention all reached 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 the plane, and can expand significantly its volume and become the spherical framework of a solid after entering bone cavity, therefore, only need to offer a width and length all greater than the gap of minimum thickness of the present invention and length on the bone cavity wall, with regard to available operating forceps, whole device be sent in bone cavity.This technical characterictic is " Wicresoft " effect that realizes the member implantation surgery, and sufficient assurance is provided.Compared with prior art, can significantly dwindle the size of wound, reduce the damage to the bone cavity wall.
2. in the present invention, torsion spring and control launch to become a spheroid for overlapped arcuate tab the necessary technology support are provided apart from the setting of rope.
Description of drawings
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 the hole 13. axis hole 14. sleeve 15. anchor film traps apart from rope 12.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
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 the hole 12, axis hole 13, sleeve 14 and anchor film trap 15 consist of.
Wherein, tupelo 03 is cylindrical, the upper end of tupelo 03 is one and is holistic flat columniform axle head sheet 01 with tupelo 03, the lower end of tupelo 03 is to be the inserted link 04 of holistic positive hexagon with tupelo 03, have a pair of anchor film trap 15 on the lower end sidewall of inserted link 04, be provided with an anchor sheet 05 in each anchor film trap 15, the lower end of each anchor sheet 05 and described anchor film trap 15 are welded as a whole, and stretch out from anchor film trap 15 and the perk of oblique top the 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.
Also overlap the retainer ring 09 that the annular that is welded as a whole with tupelo 03 is arranged on the sidewall of tupelo 03.
The bottom of sleeve 14 also has one to be with it holistic axle head sheet 01, also overlaps the retainer ring 09 that the annular that is welded as a whole with sleeve 14 is arranged on the sidewall of sleeve 14.Have a vertical spring cavity 08 on the top of sleeve 14, 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.Be provided with spring 07 between the bottom of the bottom of inserted link 04 and spring cavity 08.The overall diameter of sleeve 14 is less than the diameter of described axle head sheet 01.
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, and weld with the upper end of the arcuate tab 10 that is placed in the superiors on tupelo 03 lower end of torsion spring 02.
Have a control at the middle part of each arcuate tab 10 apart from the hole 12, control runs through all control apart from the hole 12 and 12 fixing apart from the 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 bone cavity, first with 10 rotations of each arcuate tab to identical with the position of the arcuate tab 10 of innermost layer and fix with hands, make the present invention become the framework of a D font, then with operating forceps, diaxon dististyle 01 is applied folder power in opposite directions, inserted link 04 moves downward, under the compressing on two anchor sheets 05 edge 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, this moment, thickness of the present invention and length all reached minimum, at this moment, only need to offer a width and length all greater than the gap of minimum widith of the present invention and length on the bone cavity wall, with regard to available operating forceps, whole device is sent in bone cavity.after it enters 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 is concordant with the height and position of described draw-in groove 06, two anchor sheets 05 stretch in draw-in groove 06, at this moment, inserted link 04 can't 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 arcuate tab 10 except innermost layer arcuate tab 10, due to control distance rope 11 distances that limited between adjacent two arcuate tab 10, final each layer arcuate tab 10 is uniformly distributed in the circumference of tupelo 03, form a spherical framework, this moment, the size of vertical and horizontal of the present invention all reached maximum.
Claims (1)
1. a moment of torsion homing position type femoral head collapse Wicresoft supports ball-collecting rack, by the axle head sheet, torsion spring, tupelo, inserted link, the anchor sheet, draw-in groove, spring, spring cavity, retainer ring, arcuate tab, control is apart from rope, control is apart from the hole, axis hole, sleeve and anchor film trap consist of, 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 to be the inserted link of holistic positive hexagon with tupelo, have a pair of anchor film trap on the lower end sidewall of inserted link, be provided with an anchor sheet in each anchor film trap, the lower end of each anchor sheet and described anchor film trap are welded as a whole, stretch out from the anchor film trap and the perk of oblique top 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, also overlap the retainer ring that the annular that is welded as a whole with tupelo is arranged on the sidewall of tupelo, the bottom of sleeve also has one to be with it holistic axle head sheet, also overlap the retainer ring that the annular that is welded as a whole with sleeve is arranged on the sidewall of sleeve, have a vertical spring cavity on the top of sleeve, 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, be provided with spring between the bottom of the bottom of inserted link and spring cavity, the overall diameter of sleeve is less than the diameter of described axle head sheet, arcuate tab is to bend to arc Nitinol sheet, the 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 be placed in respectively on described tupelo and sleeve and be in respectively the retainer ring of tupelo and the axle head sheet between 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 the interference fit relation with sleeve with tupelo, the axis hole of the upper and lower side of all the other each layer 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, weld with the upper end of the arcuate tab that is placed in the superiors on tupelo the lower end of torsion spring, have a control at the middle part of each arcuate tab apart from the hole, control runs through all controls apart from rope to be fixed apart from the hole apart from each control of Kong Bingyu, the control of every adjacent two arcuate tab is apart from the control between the hole apart from the identical length etc. of restricting, before the present invention is inserted bone cavity, first with the rotation of each arcuate tab to identical with the position of the arcuate tab of innermost layer and fix with hands, make the present invention become the framework of a D font, then with operating forceps, the diaxon dististyle is applied folder power in opposite directions, inserted link moves downward, under the compressing on two anchor sheets edge in the bottom surface of draw-in groove in retraction anchor film trap separately, when spring is compressed to the limit, distance between the diaxon dististyle reaches the shortest, this moment, thickness of the present invention and length all reached minimum, at this moment, only need to offer a width and length all greater than the gap of minimum widith of the present invention and length on the bone cavity wall, with regard to available operating forceps, whole device is sent in bone cavity, after it enters bone cavity, the pressure of releasing to the diaxon dististyle, under the promotion of spring, inserted link moves upward, when the height of two anchor sheets is concordant with the height and position of described draw-in groove, two anchor sheets stretch in draw-in groove, at this moment, inserted link can't move upward again, distance between the 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 arcuate tab except the innermost layer arcuate tab, limited the distance between adjacent two arcuate tab apart from restricting due to control, final each layer arcuate tab is uniformly distributed in the circumference of tupelo, form a spherical framework, this moment, the size of vertical and horizontal of the present invention all reached 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 true CN103126748A (en) | 2013-06-05 |
| CN103126748B 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)
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|---|---|---|---|---|
| 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 |
| WO2007078692A2 (en) * | 2005-12-23 | 2007-07-12 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for fixation of bone with an expandable device |
| WO2008096363A2 (en) * | 2007-02-07 | 2008-08-14 | 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 (11)
| 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 |
| WO2007078692A2 (en) * | 2005-12-23 | 2007-07-12 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for fixation of bone with an expandable device |
| WO2007078692A3 (en) * | 2005-12-23 | 2008-12-18 | Univ Leland Stanford Junior | Systems and methods for fixation of bone with an expandable device |
| WO2008096363A2 (en) * | 2007-02-07 | 2008-08-14 | N.M.B. Medical Applications Ltd. | Bone implant |
| 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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| Publication number | Publication date |
|---|---|
| CN103126748B (en) | 2014-10-15 |
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