CN104814815A - Bone joint prosthesis - Google Patents
Bone joint prosthesis Download PDFInfo
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- CN104814815A CN104814815A CN201510267020.XA CN201510267020A CN104814815A CN 104814815 A CN104814815 A CN 104814815A CN 201510267020 A CN201510267020 A CN 201510267020A CN 104814815 A CN104814815 A CN 104814815A
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- joint prosthesis
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- 210000000988 bone and bone Anatomy 0.000 title abstract description 7
- 238000009434 installation Methods 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 17
- 125000003003 spiro group Chemical group 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 201000008482 osteoarthritis Diseases 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 210000000629 knee joint Anatomy 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 210000002303 tibia Anatomy 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000013150 knee replacement Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000011883 total knee arthroplasty Methods 0.000 description 1
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Abstract
The invention provides a bone joint prosthesis. The bone joint prosthesis comprises a platform column, a plurality of movable base plates and a driving part, wherein the first end of the platform column is provided with an installing platform, and the installing platform is provided with a plurality of installing parts arranged around the axis of the platform column. The movable base plates are arranged in the installing parts in a one-to-one correspondence mode. The driving part is used for driving at least one movable base plate to move, so as to adjust the distance of the movable base plate relative to the axis of the platform column. The bone joint prosthesis can be adjusted according to the conditions of different patients, the problem that bone joint prostheses cannot meet the implanting requirements of each patient in the prior art can be solved, and the production cost of the bone joint prosthesis is greatly reduced.
Description
Technical field
The present invention relates to knee-joint prosthesis technical field, in particular to a kind of joint prosthesis.
Background technology
In total knee replacement (Total Knee Arthroplasty, TKA) operation, tibial prosthesis is all subject to showing great attention to of joint surgery doctor to the level of coverage of Tibial osteotomy plane always.Have bibliographical information, the coverage rate of tibial prosthesis is higher, and prosthese is easier to be delivered on cortical bone by power, and prosthese is more not easy to subside, thus the time-to-live of prosthese is also longer.From medical imaging, the shape of physiology tibial plateau is not symmetrical, the front inner side of platform and rear inner side are all to external expansion (anteroposterior diameter of inner side platform is greater than the anteroposterior diameter of outside platform), and the width of inner side platform will be slightly smaller than outside platform, that is inner side platform is longer than outside platform, narrower, and inner side platform presents oval form, and outside platform presents positive Circles.But at present both at home and abroad knee joint tibial prosthesis major part is all symmetric form (interior outside planform shape is just the same), so just cause the excellent covering that tibial prosthesis can not ensure inner side platform and outside platform simultaneously.Although abroad some company develops anatomical form tibial prosthesis (interior outside platform is asymmetric), but its shape carries out designing with reference to the outline of the physiology tibial plateau of a large amount of American-European patient, pardon is too large, the implantation requirement to every patient can not be met, and the tibia of American-European ethnic group and Asia ethnic group has larger difference, so this anatomical form tibial prosthesis is difficult to make domestic every patient all have higher coverage rate, and doctor can not regulate in art temporarily, therefore the external coverage rate of anatomical tibial plateau prosthese to tibia does not increase substantially.
Summary of the invention
Main purpose of the present invention is to provide a kind of joint prosthesis, can not meet to solve joint prosthesis of the prior art the problem implanted every patient.
To achieve these goals, the invention provides a kind of joint prosthesis, comprising: platform post, the first end of platform post is provided with mounting platform, mounting platform has multiple installation portions of the axis arranged around platform post; Multiple movable base plate, multiple movable base plate is arranged in multiple installation portion correspondingly; Drive division, drive division moves for driving at least one movable base plate, to regulate the distance of the axis of movable base plate opposed platforms post.
Further, drive division comprises multiple driven unit, and multiple driven unit is arranged in multiple installation portion correspondingly, moves along the direction away from platform mast axis to drive the movable base plate in corresponding installation portion.
Further, multiple movable base plate is laid on mounting platform, and the outward flange of the outward flange of each movable base plate and mounting platform corresponding position is suitable.
Further, driven unit comprises: locating dowel; Cam, cam is set in locating dowel; Actuator, actuator driving cam rotates to drive movable base plate to move along the direction away from platform mast axis around locating dowel.
Further, cam is oval cam, and the first end of oval cam is set in locating dowel, and the second end of oval cam is provided with through hole; Locating dowel is provided with the locating hole that the axis direction along locating dowel extends; The second support bar that actuator comprises body, is connected to the first support bar on body and is connected on body, first support bar is removably mounted in through hole, second support bar is removably mounted in locating hole, and the first support bar rotates around locating dowel with driving cam around the second support bar motion.
Further, mounting platform arranges projection, mounting platform is separated to form multiple installation portion by projection; Joint prosthesis also comprises elastic supporting member for supporting optical member, the first end of elastic supporting member for supporting optical member is connected in projection, second end of elastic supporting member for supporting optical member is connected to the second end of oval cam, and when movable base plate is in initial position, the bearing of trend of the centrage of elastic supporting member for supporting optical member is consistent with the direction of the minor axis of oval cam.
Further, joint prosthesis also comprises self-locking mechanism, and self-locking mechanism is for locking the position of movable base plate.
Further, self-locking mechanism comprises: lock hole, and lock hole is arranged on movable base plate, and extends along the axis of platform post to the axial direction away from platform post; Self-locking body, self-locking body is fixedly installed in installation portion to coordinate being locked by movable base plate with lock hole.
Further, lock hole comprises: main aperture section, and main aperture section extends from the position of the axis near platform post to the axis direction away from platform post; Multiple auxiliary holes section, multiple auxiliary holes section is arranged along the length direction of main aperture section, and is arranged in the both sides of main aperture section in pairs, and each auxiliary hole Duan Junyu main aperture section is communicated with and along the bearing of trend of main aperture section gradually away from main aperture section.
Further, self-locking body comprises: erection column, and erection column is removably mounted on mounting platform; Two pieces of fins, two pieces of fins are articulated and connected, and the pin joint of two pieces of fins is positioned on erection column, and two pieces of fins coordinate with auxiliary hole arranged in pairs section, two pieces of fin foldings with the motion of movable base plate.
Further, joint prosthesis also comprises cover plate, and cover plate lid is located on mounting platform, and cover plate is provided with resigning hole, and actuator moves with driving cam through resigning hole.
Further, joint prosthesis comprises cover plate, and erection column comprises hollow pipe section and spiro rod section, and spiro rod section is screwed onto in hollow pipe section, and two pieces of fin articulated position are positioned at hollow pipe section, cover plate are provided with the removal hole corresponding with spiro rod section.
Apply technical scheme of the present invention, in operation process, can according to the practical situation of patient, the effect of drive division is utilized to drive movable base plate motion, and then the distance of the axis of adjustment movable base plate opposed platforms post, namely can make to drive movable base plate to external expansion, and then improve the coverage rate of joint prosthesis to osteoarthrosis Osteotomy.Owing to being provided with multiple movable base plate in the present invention, patient can regulate by the outline of osteotomy situation to joint prosthesis according to patient in art, visible, joint prosthesis in the present invention can regulate according to the situation of different patient, joint prosthesis of the prior art can be overcome and can not meet the problem that every patient is implanted, greatly reduce the production cost of joint prosthesis.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the first side view of joint prosthesis of the present invention;
Fig. 2 diagrammatically illustrates the second side view of joint prosthesis of the present invention;
Fig. 3 diagrammatically illustrates Fig. 1 and to dismantle the view after cover plate;
Fig. 4 diagrammatically illustrates the side view of the platform post of joint prosthesis of the present invention;
Fig. 5 diagrammatically illustrates the movable base plate of joint prosthesis of the present invention and the annexation figure of driven unit and self-locking mechanism;
Fig. 6 diagrammatically illustrates the three-dimensional structure diagram of the self-locking body of joint prosthesis of the present invention; And
Fig. 7 diagrammatically illustrates the front view of the actuator of joint prosthesis of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings labelling:
1, platform post; 11, mounting platform; 12, installation portion; 13, protruding; 2, movable base plate; 3, driven unit; 31, locating dowel; 311, locating hole; 32, cam; 321, through hole; 33, actuator; 331, body; 332, the first support bar; 333, the second support bar; 4, elastic supporting member for supporting optical member; 5, self-locking mechanism; 51, lock hole; 511, main aperture section; 512, auxiliary hole section; 52, self-locking body; 521, erection column; 521a, hollow pipe section; 521b, spiro rod section; 522, fin; 6, cover plate; 61, resigning hole; 62, removal hole.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
See shown in Fig. 1 to Fig. 7, according to embodiments of the invention, provide a kind of joint prosthesis.
In the present embodiment, joint prosthesis comprises platform post 1, multiple movable base plate 2 and multiple driven unit 3.
Wherein, the first end (upper end) of platform post 1 is provided with mounting platform 11, this mounting platform 11 has multiple installation portions 12 of the axis arranged around platform post 1; Multiple movable base plate 2 is arranged in multiple installation portion 12 correspondingly; Drive division moves for driving at least one movable base plate 2, to regulate the distance of the axis of movable base plate 2 opposed platforms post 1.
In operation process, can according to the practical situation of patient, the effect of drive division is utilized to drive movable base plate 2 to move, and then the distance of the axis of adjustment movable base plate 2 opposed platforms post 1, namely can make to drive movable base plate 2 to external expansion, and then improve the coverage rate of joint prosthesis to osteoarthrosis Osteotomy.Owing to being provided with multiple movable base plate 2 in the present embodiment, patient can regulate by the outline of osteotomy situation to joint prosthesis according to patient in art, visible, joint prosthesis in the present embodiment can regulate according to the situation of different patient, joint prosthesis of the prior art can be overcome and can not meet the problem that every patient is implanted, greatly reduce the production cost of joint prosthesis.
In the present embodiment, drive division comprises multiple driven unit 3 and is arranged in multiple installation portion 12 correspondingly, and during work, driven unit 3 drives the movable base plate 2 in corresponding installation portion 12 to move along the direction away from platform post 1 axis.
Due to the mounting platform 11 of the present embodiment being provided with multiple movable base plate 2, in operation process, can according to the practical situation of patient, the effect of driven unit 3 is utilized to drive movable base plate 2 to move to the axial direction away from platform post 1, namely drive movable base plate 2 to external expansion, and then improve the coverage rate of joint prosthesis to osteoarthrosis Osteotomy.Shown in composition graphs 3 and Fig. 5, multiple movable base plates 2 in the present embodiment are laid on mounting platform 11, and the outward flange of the outward flange of each movable base plate 2 and mounting platform 11 corresponding position is suitable, is convenient to patient and regulates according to the concrete osteotomy area situation of patient.Preferably, the movable base plate 2 in the present embodiment is four pieces, and four pieces of above-mentioned movable base plates 2 are separately positioned on four profiles of mounting platform 11, are convenient to patient and select according to the practical situation of patient.In other embodiments of the invention, the number of movable base plate 2 can also be 2,3 or 5 etc.
Shown in composition graphs 3 to 5 and Fig. 7, the driven unit 3 in the present embodiment comprises locating dowel 31, cam 32 and actuator 33.
Wherein, cam 32 is set in locating dowel 31, and during work, actuator 33 driving cam 32 rotates to drive movable base plate 2 to move along the direction away from platform post 1 axis around locating dowel 31, simple and fast.
Preferably, the cam 32 in the present embodiment is oval cam, and the first end of this oval cam is set in locating dowel 31, and the second end of oval cam is provided with through hole 321; And locating dowel 31 is provided with the locating hole 311 that the axis direction along locating dowel 31 extends.In order to driving cam 32 moves, the actuator 33 of the present embodiment comprises body 331 and the first support bar 332 and the second support bar 333 be connected on body 331, first support bar 332 is removably mounted in through hole 321, second support bar 333 is removably mounted in locating hole 311, during work, the first support bar 332 moves around the second support bar 333 and to rotate around locating dowel 31 with driving cam 32.
According to above-mentioned structure, when needing to regulate the position of movable base plate 2, the first support bar 332 of actuator 33 is only needed to be arranged in through hole 321, and the second support bar 333 of actuator 33 is arranged in locating hole 311 simultaneously, then the body 331 of actuator 33 is applied to the effect of power, actuator 33 is rotated, can rotate by driving cam 32, when in the process that cam 32 rotates, movable base plate 2 can be driven to move to the direction of the axis away from platform post 1, and then the coverage rate of joint prosthesis is adjusted.
In the present embodiment, movable base plate 2 is in fan-shaped, and the edge of the movable base plate 2 in fan-shaped layout is provided with the concave arc type edge suitable with the outer edge of oval cam, can reduce to rub between cam 32 and movable base plate 2, is convenient to drive.
Shown in composition graphs 4, the mounting platform 11 of the platform post 1 in the present embodiment is arranged protruding 13, mounting platform 11 is separated to form multiple installation portion 12 by this projection 13, is convenient to install above-mentioned multiple movable base plates 2 and driven unit 3.
Preferably, joint prosthesis in the present embodiment also comprises elastic supporting member for supporting optical member 4, the first end of this elastic supporting member for supporting optical member 4 is connected on protruding 13, second end of elastic supporting member for supporting optical member 4 is connected to the second end of oval cam, ensure that cam 32 and movable base plate 2 moment keep in touch state, improve the driving reliability of driven unit 3 pairs of movable base plates 2.And, when movable base plate 2 is in initial position, the bearing of trend of the centrage of elastic supporting member for supporting optical member 4 is consistent with the direction of the minor axis of oval cam, can ensure that cam 32 and movable base plate 2 moment keep in touch further, and to offer the best Support Position for the support of elastic supporting member for supporting optical member 4.More preferably, the elastic supporting member for supporting optical member 4 in the present embodiment is spring.In other embodiments of the invention, elastic supporting member for supporting optical member 4 can also be set to other elastic support structures, as long as other modes of texturing under thought of the present invention, all within protection scope of the present invention.
In order to improve the stability of the joint prosthesis of the present embodiment, the joint prosthesis in the present embodiment also comprises self-locking mechanism 5, and this self-locking mechanism 5 is for being locked in precalculated position by movable base plate 2.Precalculated position described here is the suitable joint prosthesis position being suitable for different patient.
Preferably, joint prosthesis in the present embodiment also comprises cover plate 6, this cover plate 6 lid is located on mounting platform 11, this cover plate 6 is provided with resigning hole 61, due to the cover plate 6 of the present embodiment being provided with resigning hole 61, therefore, in the process of position regulating movable base plate 2, actuator 33 can be made to move with driving cam 32 through resigning hole 61, like this, all driven units 3 can share an actuator 33, reduce the cost of the joint prosthesis of the present embodiment further.
Again shown in composition graphs 3 and Fig. 5, the self-locking mechanism 5 in the present embodiment comprises lock hole 51 and self-locking body 52.
Wherein, lock hole 51 is arranged on movable base plate 2, and extends (i.e. the direction of motion of movable base plate 2) along the axis of platform post 1 to the axial direction away from platform post 1; Self-locking body 52 is fixedly installed in installation portion 12 to coordinate being locked by movable base plate 2 with lock hole 51.
Shown in Figure 5, the lock hole 51 in the present embodiment comprises main aperture section 511 and multiple auxiliary holes section 512, and wherein, main aperture section 511 extends along the axis of platform post 1 to the axial direction away from platform post 1; Multiple auxiliary holes section 512 is arranged along the length direction of main aperture section 511, and be arranged in the both sides of main aperture section 511 in pairs, add man-hour, each auxiliary hole section 512 is all communicated with bearing of trend along main aperture section 511 gradually away from described main aperture section 511 with main aperture section 511, now, two auxiliary hole sections 512 arranged in pairs form " eight " word structure, and are somebody's turn to do the axis of upper end near platform post 1 of " eight " word structure.
Shown in Figure 6, self-locking body 52 comprises erection column 521 and two pieces of fins 522, and wherein, erection column 521 is removably mounted on mounting platform 11; Two pieces of fins 522 are articulated and connected, and the pin joint of two pieces of fins 522 is positioned on erection column 521, and two pieces of fins 522 coordinate with auxiliary hole arranged in pairs section 512, during self-locking, and two pieces of fin 522 foldings with the motion of movable base plate 2.
Lock hole 51 due to the present embodiment comprises main aperture section 511 and auxiliary hole section 512, and auxiliary hole section 512 is, and " eight " word structural configuration is in the both sides of main aperture section 511, and self-locking body 52 comprises erection column 521 and two pieces of fins 522, when movable base plate 2 under the driving of driven unit 3 in the process of the axial-movement away from platform post 1, two pieces of fins 522 of self-locking body 52 can open when meeting " eight " word structure and be plugged in " eight " word structure, and then movable base plate 2 is locked, and when driven unit 3 continues to drive movable base plate 2 to axial-movement away from platform post 1, two pieces of fins 522 of self-locking body 52 can be closed under the extruding of movable base plate 2, until again movable base plate 2 is locked when meeting the next one " eight " word structure.
In order to improve the degree of regulation of the joint prosthesis of the present embodiment, " eight " word structure in the present embodiment is more intensive better.
Preferably, joint prosthesis in the present embodiment also comprises cover plate 6, this cover plate 6 lid is located on mounting platform 11, this cover plate 6 is provided with resigning hole 61, due to the cover plate 6 of the present embodiment being provided with resigning hole 61, therefore, in the process of position regulating movable base plate 2, actuator 33 can be made to move with driving cam 32 through resigning hole 61, like this, all driven units 3 can share an actuator 33, reduce the cost of the joint prosthesis of the present embodiment further.
In a kind of preferred embodiment of the present invention, joint prosthesis comprises cover plate 6, erection column 521 comprises hollow pipe section 521a and spiro rod section 521b, spiro rod section 521b is screwed onto in hollow pipe section 521a, two pieces of fin 522 articulated position are positioned at hollow pipe section 521a, cover plate 6 are provided with the removal hole 62 corresponding with spiro rod section 521b.If cause its edge to exceed osteoarthrosis Osteotomy because error causes joint prosthesis to expand excessive, then in removal hole 62, spiro rod section 521b can be disassembled from hollow pipe section 521a, again movable base plate 2 and hollow pipe section 521a and two piece fin 522 are detached mounting platform 11 simultaneously, again movable base plate 2 is resetted, spiro rod section 521b is placed in lock hole 51 after the reset.
In the present embodiment, prosthese is by pad locking mechanism (not shown) and osteoarthrosis platform locking, and pad locking mechanism of the present invention is circular tapered locking mechanism.
Structure according to the present embodiment can be known, principle of the present invention is regulated by the outline of cam mechanism to prosthese.During initial position, polylith movable base plate 2 is placed in installation portion 12, and cam 32 is fixed in locating dowel 31.Locating dowel 31 is provided with locating hole 311, object is that the second support bar 333 being convenient to actuator 33 inserts.Above cam 32, have a through hole 321 respectively, the object of through hole 321 coordinates with the first support bar 332 of actuator 33, thus reach the effect utilizing actuator 33 adjustment cam 32 angle, and then regulate movable base plate 2.
Elastic supporting member for supporting optical member 4 is connected with cam 32 and protruding 13 respectively, and is in the oppression state always, so just can ensure that cam 32 can keep in touch with movable base plate 2 moment.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
1, improve the coverage rate of joint prosthesis to osteoarthrosis Osteotomy.
2, patient can regulate by the outline of osteotomy situation to joint prosthesis according to patient in art.
3, joint prosthesis of the present invention have four expansion screens can for doctor select.
4, joint prosthesis of the present invention interior outside when resetting is symmetrical, so when manufacturer produces left and right side knee-joint prosthesis, same set of mould can be used, so while raising joint prosthesis is to osteoarthrosis osteotomy surface coverage rate, do not improve production cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a joint prosthesis, is characterized in that, comprising:
Platform post (1), the first end of described platform post (1) is provided with mounting platform (11), described mounting platform (11) has multiple installation portions (12) of the axis arranged around described platform post (1);
Multiple movable base plate (2), described multiple movable base plate (2) is arranged in described multiple installation portion (12) correspondingly;
Drive division, described drive division moves for driving movable base plate described at least one (2), to regulate the distance of the axis of the relatively described platform post (1) of described movable base plate (2).
2. joint prosthesis according to claim 1, it is characterized in that, described drive division comprises multiple driven unit (3), described multiple driven unit (3) is arranged in described multiple installation portion (12) correspondingly, moves along the direction away from described platform post (1) axis to drive the described movable base plate (2) in corresponding described installation portion (12).
3. joint prosthesis according to claim 2, it is characterized in that, described multiple movable base plate (2) is laid on described mounting platform (11), and the outward flange of the outward flange of each described movable base plate (2) and described mounting platform (11) corresponding position is suitable.
4. joint prosthesis according to claim 3, is characterized in that, described driven unit (3) comprising:
Locating dowel (31);
Cam (32), described cam (32) is set in described locating dowel (31);
Actuator (33), described actuator (33) drives described cam (32) to rotate to drive described movable base plate (2) to move along the direction away from described platform post (1) axis around described locating dowel (31).
5. joint prosthesis according to claim 4, it is characterized in that, described cam (32) is oval cam, and the first end of described oval cam is set in described locating dowel (31), and the second end of described oval cam is provided with through hole (321);
Described locating dowel (31) is provided with the locating hole (311) that the axis direction along described locating dowel (31) extends;
Described actuator (33) comprises body (331), be connected to the first support bar (332) on described body (331), with the second support bar (333) be connected on described body (331), described first support bar (332) is removably mounted in described through hole (321), described second support bar (333) is removably mounted in described locating hole (311), described first support bar (332) is moved around described second support bar (333) to drive described cam (32) to rotate around described locating dowel (31).
6. joint prosthesis according to claim 5, it is characterized in that, described mounting platform (11) is arranged projection (13), described mounting platform (11) is separated to form described multiple installation portion (12) by described projection (13);
Described joint prosthesis also comprises elastic supporting member for supporting optical member (4), the first end of described elastic supporting member for supporting optical member (4) is connected in described projection (13), second end of described elastic supporting member for supporting optical member (4) is connected to the second end of described oval cam, and when described movable base plate (2) is in initial position, the bearing of trend of the centrage of described elastic supporting member for supporting optical member (4) is consistent with the direction of the minor axis of described oval cam.
7. the joint prosthesis according to any one of claim 4 to 6, is characterized in that, described joint prosthesis also comprises self-locking mechanism (5), and described self-locking mechanism (5) is for locking the position of described movable base plate (2).
8. joint prosthesis according to claim 7, is characterized in that, described self-locking mechanism (5) comprising:
Lock hole (51), described lock hole (51) is arranged on described movable base plate (2), and extends along the axis of described platform post (1) to the axial direction away from described platform post (1);
Self-locking body (52), described self-locking body (52) is fixedly installed in described installation portion (12) to coordinate being locked by described movable base plate (2) with described lock hole (51).
9. joint prosthesis according to claim 8, is characterized in that, described lock hole (51) comprising:
Main aperture section (511), described main aperture section (511) extends from the position of the axis near described platform post (1) to the axis direction away from described platform post (1);
Multiple auxiliary hole section (512), described multiple auxiliary hole section (512) is arranged along the length direction of described main aperture section (511), and be arranged in the both sides of described main aperture section (511) in pairs, and each described auxiliary hole section (512) is all communicated with described main aperture section (511) and along the bearing of trend of described main aperture section (511) gradually away from described main aperture section (511).
10. joint prosthesis according to claim 9, is characterized in that, described self-locking body (52) comprising:
Erection column (521), described erection column (521) is removably mounted on described mounting platform (11);
Two pieces of fins (522), described two pieces of fins (522) are articulated and connected, the pin joint of described two pieces of fins (522) is positioned on described erection column (521), described two pieces of fins (522) coordinate with described auxiliary hole section (512) arranged in pairs, described two pieces of fin (522) foldings with the motion of described movable base plate (2).
11. joint prosthesis according to claim 4, it is characterized in that, described joint prosthesis also comprises cover plate (6), described cover plate (6) lid is located on described mounting platform (11), described cover plate (6) is provided with resigning hole (61), described actuator (33) moves to drive described cam (32) through described resigning hole (61).
12. joint prosthesis according to claim 10, it is characterized in that, described joint prosthesis comprises cover plate (6), described erection column (521) comprises hollow pipe section (521a) and spiro rod section (521b), described spiro rod section (521b) is screwed onto in hollow pipe section (521a), described two pieces of fin (522) articulated position are positioned at described hollow pipe section (521a), described cover plate (6) are provided with the removal hole (62) corresponding with described spiro rod section (521b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267020.XA CN104814815B (en) | 2015-05-22 | 2015-05-22 | Joint prosthesis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267020.XA CN104814815B (en) | 2015-05-22 | 2015-05-22 | Joint prosthesis |
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| CN104814815A true CN104814815A (en) | 2015-08-05 |
| CN104814815B CN104814815B (en) | 2016-10-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840625A (en) * | 2019-12-04 | 2020-02-28 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN110840623A (en) * | 2019-12-04 | 2020-02-28 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN111035480A (en) * | 2019-12-25 | 2020-04-21 | 北京爱康宜诚医疗器材有限公司 | Tibia structure |
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| CN2768715Y (en) * | 2005-01-11 | 2006-04-05 | 郑诚功 | Improved artificial knee joint |
| CN101351172A (en) * | 2005-10-31 | 2009-01-21 | 德普伊产品公司 | Modular fixed and movable bearing prosthesis system |
| CN104207863A (en) * | 2006-03-21 | 2014-12-17 | 德普伊(爱尔兰)有限公司 | Moment-introduced whole-joint replacing prosthesis |
| US20080306602A1 (en) * | 2007-06-07 | 2008-12-11 | Worland Richard L | Tibia Cement Impaction System |
| CN102458312A (en) * | 2009-06-24 | 2012-05-16 | 康复米斯公司 | Patient-adapted improved orthopedic implants, designs and related tools |
| CN101697931A (en) * | 2009-09-30 | 2010-04-28 | 北京纳通投资有限公司 | Liner part knee-joint prosthesis, tibia part and knee-joint prosthesis |
| CN201668541U (en) * | 2010-04-23 | 2010-12-15 | 创生医疗器械(江苏)有限公司 | Knee joint rotating platform prosthesis |
| US20140222155A1 (en) * | 2013-02-07 | 2014-08-07 | Dianne S. Metzger | Tapered tibial augment |
| CN204671327U (en) * | 2015-05-22 | 2015-09-30 | 北京爱康宜诚医疗器材股份有限公司 | Joint prosthesis |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840625A (en) * | 2019-12-04 | 2020-02-28 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN110840623A (en) * | 2019-12-04 | 2020-02-28 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN110840625B (en) * | 2019-12-04 | 2025-01-21 | 北京爱康宜诚医疗器材有限公司 | Bone filling prosthesis |
| CN111035480A (en) * | 2019-12-25 | 2020-04-21 | 北京爱康宜诚医疗器材有限公司 | Tibia structure |
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