CN104814815B - Joint prosthesis - Google Patents
Joint prosthesis Download PDFInfo
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- CN104814815B CN104814815B CN201510267020.XA CN201510267020A CN104814815B CN 104814815 B CN104814815 B CN 104814815B CN 201510267020 A CN201510267020 A CN 201510267020A CN 104814815 B CN104814815 B CN 104814815B
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- joint prosthesis
- movable base
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- base plate
- post
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 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
- 201000008482 osteoarthritis Diseases 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 210000002303 tibia Anatomy 0.000 description 4
- 210000000629 knee joint Anatomy 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 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
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 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
- 239000007943 implant Substances 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
- 239000000758 substrate Substances 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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- Prostheses (AREA)
Abstract
The invention provides a kind of joint prosthesis.This joint prosthesis includes: platform post, and the first end of platform post is provided with mounting platform, and mounting platform has multiple installation portions of the axis layout around platform post；Multiple movable base plates, multiple movable base plates are arranged in multiple installation portion correspondingly；Drive division, drive division is used for driving at least one movable base plate to move, to regulate the distance of the axis of the relatively flat important actor of movable base plate.Joint prosthesis in the present invention can be adjusted according to the situation of different patients, it is possible to overcomes joint prosthesis of the prior art can not meet the problem implanting every patient, greatly reduces the production cost of joint prosthesis.
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) is performed the operation, the tibial prosthesis covering to Tibial osteotomy plane
Degree is the most all paid high attention to by joint surgery doctor.Having document to report, the coverage rate of tibial prosthesis is the highest, and prosthese more holds
Easily transferring force on cortical bone, prosthese is less susceptible to subside, thus the time-to-live of prosthese is the longest.Can from medical imaging
Knowing, the shape of physiology tibial plateau is the most symmetrical, and the front inner side of platform and rear inner side all outward expansion be (inner side platform
Anteroposterior diameter is greater than footpath before and after the platform of outside), and the width of inner side platform to be slightly smaller than outside platform, say, that inner side platform
More longer than outside platform, narrower, and inner side platform presents oval form, and outside platform presents positive round form.But, mesh
Front knee joint tibial prosthesis major part both at home and abroad is all symmetric form (interior outside planform shape is just the same), thus causes tibia
Prosthese can not ensure the excellent covering to inner side platform and outside platform simultaneously.Although abroad some company develops anatomical form tibia
Prosthese (interior outside platform is asymmetric), but its shape is the outline with reference to the physiology tibial plateau of America and Europe patients in a large number to be carried out
Design, pardon is the biggest, it is impossible to meet implantation requirement to every patient, and the tibia of American-European ethnic group and Asia ethnic group has
Bigger difference, so this anatomical form tibial prosthesis is difficult to make domestic every patient all have higher coverage rate, and in art
Middle doctor can not regulate temporarily, and therefore the coverage rate of tibia is not significantly carried by external anatomical tibial plateau prosthese
High.
Summary of the invention
A kind of joint prosthesis of offer is provided, can not meet solving joint prosthesis of the prior art
The problem that every patient is implanted.
To achieve these goals, the invention provides a kind of joint prosthesis, including: platform post, the first end of platform post sets
It is equipped with mounting platform, mounting platform has multiple installation portions of the axis layout around platform post；Multiple movable base plates, multiple
Movable base plate is arranged in multiple installation portion correspondingly；Drive division, drive division is used for driving at least one movable base plate to move,
Distance with the axis of the regulation relatively flat important actor of movable base plate.
Further, drive division includes that multiple driving assembly, multiple driving assemblies are arranged in multiple installation portion correspondingly,
Move along the direction away from platform mast axis with the movable base plate in the corresponding installation portion of driving.
Further, multiple movable base plates are laid on mounting platform, and the outward flange of each movable base plate position corresponding with mounting platform
The outward flange putting place is suitable.
Further, assembly is driven to include: locating dowel；Cam, cam sleeve is located in locating dowel；Actuator, actuator drives
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, the of oval cam
Two ends are provided with through hole；The hole, location of the axis direction extension along locating dowel it is provided with in locating dowel；Actuator includes body, company
The first support bar being connected on body and the second support bar being connected on body, the first support bar is removably mounted on through hole
In, the second support bar is removably mounted in hole, location, and the first support bar moves to drive cam around location around the second support bar
Post rotates.
Further, mounting platform arranging projection, mounting platform is separated to form multiple installation portion by projection；Joint prosthesis is also
Including elastic supporting member for supporting optical member, the first end of elastic supporting member for supporting optical member is connected in projection, and the second end of elastic supporting member for supporting optical member is connected to oval convex
Second end of wheel, and when movable base plate is in initial position, the bearing of trend of the centrage of elastic supporting member for supporting optical member and oval cam
The direction of short axle consistent.
Further, joint prosthesis also includes self-locking mechanism, and self-locking mechanism is for locking the position of movable base plate.
Further, self-locking mechanism includes: lock hole, and lock hole is arranged on movable base plate, and along the axis of platform post to far
Axial direction from platform post extends；Self-locking body, it is interior to coordinate with lock hole with by activity base that self-locking body is fixedly installed on installation portion
Plate locks.
Further, lock hole includes: main aperture section, main aperture section from the position of axis near platform post to away from platform post
Axis direction extends；Multiple auxiliary holes section, multiple auxiliary holes section is arranged along the length direction of main aperture section, and is arranged in pairs at main aperture section
Both sides, and each auxiliary hole Duan Junyu main aperture section connection be gradually distance from main aperture section along the bearing of trend of main aperture section.
Further, self-locking body includes: mounting post, and mounting post is removably mounted on mounting platform；Two pieces of fins, two pieces
Fin is articulated and connected, and the pin joint of two pieces of fins is positioned in mounting post, and two pieces of fins coordinate with auxiliary hole arranged in pairs section, two pieces
Fin is with the motion of movable base plate and folding.
Further, joint prosthesis also includes that cover plate, cover plate lid are located on mounting platform, cover plate is provided with resigning hole, drives
Moving part moves through resigning hole with driving cam.
Further, joint prosthesis includes that cover plate, mounting post include hollow pipe section and spiro rod section, and spiro rod section is screwed onto hollow
In duct section, two pieces of fin articulated position are positioned at hollow pipe section, and cover plate is provided with the removal hole corresponding with spiro rod section.
Application technical scheme, in operation process, can utilize the effect of drive division according to the practical situation of patient
Driving movable base plate moves, and then the distance of the axis of the regulation relatively flat important actor of movable base plate, i.e. so that drive movable base plate
Outward expansion, and then improve the joint prosthesis coverage rate to osteoarthrosis Osteotomy.Owing to the present invention being provided with multiple work
Dynamic substrate, the outline of joint prosthesis osteotomy situation according to patient can be adjusted in art by patient, it is seen then that this
Joint prosthesis in bright can be adjusted according to the situation of different patients, it is possible to overcomes joint prosthesis of the prior art not
The problem that every patient is implanted can be met, greatly reduce the production cost of joint prosthesis.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the first side view of the joint prosthesis of the present invention；
Fig. 2 diagrammatically illustrates the second side view of the joint prosthesis of the present invention；
Fig. 3 diagrammatically illustrates Fig. 1 and dismantles the view after cover plate；
Fig. 4 diagrammatically illustrates the side view of the platform post of the joint prosthesis of the present invention；
Fig. 5 diagrammatically illustrates movable base plate and driving assembly and the annexation of self-locking mechanism of the joint prosthesis of the present invention
Figure；
Fig. 6 diagrammatically illustrates the three-dimensional structure diagram of the self-locking body of the joint prosthesis of the present invention；And
Fig. 7 diagrammatically illustrates the front view of the actuator of the joint prosthesis of the present invention.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
1, platform post；11, mounting platform；12, installation portion；13, protruding；2, movable base plate；3, assembly is driven；31、
Locating dowel；311, hole, location；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, mounting post；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 in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
See shown in Fig. 1 to Fig. 7, according to embodiments of the invention, it is provided that a kind of joint prosthesis.
In the present embodiment, joint prosthesis includes platform post 1, multiple movable base plate 2 and multiple driving assembly 3.
Wherein, first end (upper end) of platform post 1 is provided with mounting platform 11, and this mounting platform 11 has around platform post
Multiple installation portions 12 that the axis of 1 is arranged；Multiple movable base plates 2 are arranged in multiple installation portion 12 correspondingly；Drive division
For driving at least one movable base plate 2 to move, to regulate the distance of the axis of the relatively flat important actor of movable base plate 21.
In operation process, the effect of drive division according to the practical situation of patient, can be utilized to drive movable base plate 2 to move, enter
And regulate the distance of the axis of the relatively flat important actor of movable base plate 21, i.e. so that drive movable base plate 2 outward expansion, and then
Improve the joint prosthesis coverage rate to osteoarthrosis Osteotomy.Owing to the present embodiment being provided with multiple movable base plate 2, patient
Osteotomy situation according to patient the outline of joint prosthesis can be adjusted in art, it is seen then that the bone in the present embodiment closes
Joint prosthese can be adjusted according to the situation of different patients, it is possible to overcomes joint prosthesis of the prior art can not meet often
The problem that position patient implants, greatly reduces the production cost of joint prosthesis.
In the present embodiment, drive division includes that multiple driving assembly 3 is arranged in multiple installation portion 12 correspondingly, during work,
Driving assembly 3 drives the movable base plate 2 in corresponding installation portion 12 to move along the direction away from platform post 1 axis.
Owing to being provided with multiple movable base plate 2 on the mounting platform 11 of the present embodiment, in operation process, can be according to patient's
Practical situation, utilizes the effect driving assembly 3 to drive movable base plate 2 to move to the axial direction away from platform post 1, i.e. drives
Movable base plate 2 outward expansion, and then improve the joint prosthesis coverage rate to osteoarthrosis Osteotomy.In conjunction with Fig. 3 and Fig. 5
Shown in, the multiple movable base plates 2 in the present embodiment are laid on mounting platform 11, and the outward flange of each movable base plate 2 and installation
The outward flange of platform 11 corresponding position is suitable, it is simple to patient is adjusted according to the concrete osteotomy area situation of patient.Preferably
Ground, 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 of mounting platform 11
On profile, it is simple to patient selects according to the practical situation of patient.In other embodiments of the invention, movable base plate 2
Number can also is that 2,3 or 5 etc..
Shown in Fig. 3 to 5 and Fig. 7, the driving assembly 3 in the present embodiment includes locating dowel 31, cam 32 and drives
Part 33.
Wherein, cam 32 is set in locating dowel 31, during work, actuator 33 drive cam 32 around locating dowel 31 rotate with
Movable base plate 2 is driven to move along the direction away from platform post 1 axis, 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
On, the second end of oval cam is provided with through hole 321；And be provided with the axis direction along locating dowel 31 in locating dowel 31 and extend
Hole, location 311.In order to drive cam 32 to move, the actuator 33 of the present embodiment includes body 331 and is connected to body 331
On the first support bar 332 and the second support bar 333, the first support bar 332 is removably mounted in through hole 321, second
Strut 333 is removably mounted in hole 311, location, and during work, the first support bar 332 moves to drive around the second support bar 333
Moving cam 32 rotates around locating dowel 31.
According to above-mentioned structure, when needing the position of movable base plate 2 is adjusted, it is only necessary to by first of actuator 33
Strut 332 is arranged in through hole 321, and is arranged on by the second support bar 333 of actuator 33 in hole 311, location, so simultaneously
Body 331 to actuator 33 applies the effect of power afterwards, makes actuator 33 rotate, and cam 32 can be driven to rotate, work as cam
During 32 rotate, movable base plate 2 can be driven to move to the direction of the axis away from platform post 1, so false to osteoarthrosis
The coverage rate of body is adjusted.
In the present embodiment, movable base plate 2 is in sector, and the edge of the movable base plate 2 arranged in sector is provided with and oval convex
The suitable concave arc type edge of outer edge of wheel, it is possible to reduce and rub between cam 32 and movable base plate 2, it is simple to drive.
Shown in Fig. 4, the mounting platform 11 of the platform post 1 in the present embodiment arranging protruding 13, this projection 13 will be installed
Platform 11 is separated to form multiple installation portion 12, it is simple to installs above-mentioned multiple movable base plates 2 and drives assembly 3.
Preferably, the joint prosthesis in the present embodiment also includes elastic supporting member for supporting optical member 4, and the first end of this elastic supporting member for supporting optical member 4 is connected to
On protruding 13, the second end of elastic supporting member for supporting optical member 4 is connected to the second end of oval cam, it is ensured that cam 32 and movable base plate 2
Moment keeps contact condition, improves and drives the assembly 3 driving reliability to movable base plate 2.And, when movable base plate 2 is in
During 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 short axle of oval cam, it is possible to enter one
Step ensures that cam 32 and movable base plate 2 moment keep contact, and for the best Support Position of the support offer of elastic supporting member for supporting optical member 4.
It is highly preferred that 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
May be arranged as other elastic support structures, as long as other modes of texturing under the thought of the present invention, all the present invention's
Within protection domain.
In order to improve the stability of the joint prosthesis of the present embodiment, the joint prosthesis in the present embodiment also includes self-locking mechanism 5,
This self-locking mechanism 5 is for being locked in precalculated position by movable base plate 2.Precalculated position described here is be suitable to different patient suitable
Joint prosthesis position.
Preferably, the joint prosthesis in the present embodiment also includes cover plate 6, and this cover plate 6 lid is located on mounting platform 11, this lid
Resigning hole 61 it is provided with, owing to being provided with resigning hole 61 on the cover plate 6 of the present embodiment, therefore, at regulation movable base plate on plate 6
During the position of 2, actuator 33 can be made to drive cam 32 to move through resigning hole 61, so, all of driving
Assembly 3 can share an actuator 33, reduces the cost of the joint prosthesis of the present embodiment further.
Further in conjunction with shown in Fig. 3 and Fig. 5, the self-locking mechanism 5 in the present embodiment includes lock hole 51 and self-locking body 52.
Wherein, lock hole 51 is arranged on movable base plate 2, and along the axis of platform post 1 to the axial direction away from platform post 1
Extend (i.e. the direction of motion of movable base plate 2)；Self-locking body 52 be fixedly installed in installation portion 12 with coordinate with lock hole 51 with
Movable base plate 2 is locked.
Shown in Figure 5, the lock hole 51 in the present embodiment includes main aperture section 511 and multiple auxiliary holes section 512, 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 along the length of main aperture section 511
Degree direction is arranged, and is arranged in pairs at the both sides of main aperture section 511, adds man-hour, and each auxiliary hole section 512 all connects edge with main aperture section 511
The bearing of trend of main aperture section 511 is gradually distance from described main aperture section 511, and now, two auxiliary hole sections 512 arranged in pairs form " eight "
Word structure, and it is somebody's turn to do the upper end axis near platform post 1 of " eight " word structure.
Shown in Figure 6, self-locking body 52 includes mounting post 521 and two pieces of fins 522, and wherein, mounting post 521 is removably
It is arranged 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 in mounting post 521,
Two pieces of fins 522 coordinate with auxiliary hole arranged in pairs section 512, during self-locking, two pieces of fins 522 with movable base plate 2 motion and
Folding.
Owing to the lock hole 51 of the present embodiment includes main aperture section 511 and auxiliary hole section 512, and auxiliary hole section 512 is in " eight " word structure
It is arranged in the both sides of main aperture section 511, and self-locking body 52 includes mounting post 521 and two pieces of fins 522, when movable base plate 2 is driving
Under the driving of dynamic assembly 3 during the axial-movement away from platform post 1, two pieces of fins 522 of self-locking body 52 meet " eight "
Can open and be plugged in the when of word structure in " eight " word structure, and then movable base plate 2 is locked, and when driving assembly 3 to continue
Continuous driving movable base plate 2 to during away from the axial-movement of platform post 1, two pieces of fins 522 of self-locking body 52 can be at movable base plate 2
Extruding under close, until again movable base plate 2 being locked the when of meeting the next one " eight " word structure.
In order to improve the degree of regulation of the joint prosthesis of the present embodiment, " eight " the word structure in the present embodiment is the most intensive more good.
Preferably, the joint prosthesis in the present embodiment also includes cover plate 6, and this cover plate 6 lid is located on mounting platform 11, this lid
Resigning hole 61 it is provided with, owing to being provided with resigning hole 61 on the cover plate 6 of the present embodiment, therefore, at regulation movable base plate on plate 6
During the position of 2, actuator 33 can be made to drive cam 32 to move through resigning hole 61, so, all of driving
Assembly 3 can share an actuator 33, reduces the cost of the joint prosthesis of the present embodiment further.
In a kind of preferred embodiment of the present invention, joint prosthesis includes that cover plate 6, mounting post 521 include hollow pipe section
521a and spiro rod section 521b, spiro rod section 521b are screwed onto in hollow pipe section 521a, and two pieces of fin 522 articulated position are positioned at sky
Heart duct section 521a, cover plate 6 is provided with the removal hole 62 corresponding with spiro rod section 521b.If owing to error causes osteoarthrosis false
Body extension excessive and cause its edge beyond osteoarthrosis Osteotomy, then can in removal hole 62 by spiro rod section 521b from hollow
Disassemble on duct section 521a, then movable base plate 2 is detached installation simultaneously put down with hollow pipe section 521a and two pieces of fins 522
Platform 11, then 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, pad of the present invention
Locking mechanism is circular tapered locking mechanism.
Structure according to the present embodiment is it is recognised that the principle of the present invention is to be adjusted the outline of prosthese by cam mechanism.
During initial position, polylith movable base plate 2 is placed in installation portion 12, and cam 32 is fixed in locating dowel 31.In locating dowel 31
It is provided with hole 311, location, it is therefore an objective to the second support bar 333 being easy to actuator 33 inserts.One is had respectively above cam 32
Through hole 321, the purpose of through hole 321 is that the first support bar 332 with actuator 33 coordinates, thus reaches to utilize actuator 33 to adjust
The effect of joint cam 32 angle, and then movable base plate 2 is adjusted.
Elastic supporting member for supporting optical member 4 is connected with cam 32 and protruding 13 respectively, and is constantly in oppression state, thus can guarantee that convex
Wheel 32 can keep contacting 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 joint prosthesis coverage rate to osteoarthrosis Osteotomy.
2, the outline of joint prosthesis osteotomy situation according to patient can be adjusted in art by patient.
3, the joint prosthesis of the present invention have four extension screens be available for doctor select.
4, the joint prosthesis of the present invention interior outside when resetting is symmetrical, then produces left and right side knee joint in manufacturer
During prosthese, it is possible to use same set of mould, so while raising joint prosthesis is to osteoarthrosis osteotomy surface coverage rate, not
It is improved production cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. a joint prosthesis, it is characterised in that including:
Platform post (1), the first end of described platform post (1) is provided with mounting platform (11), described mounting platform (11)
On have around described platform post (1) axis arrange multiple installation portions (12)；
Multiple movable base plates (2), the plurality of movable base plate (2) is arranged on the plurality of installation portion (12) correspondingly
In；
Drive division, described drive division is used for driving at least one described movable base plate (2) to move, to regulate described movable base
The distance of the axis of plate (2) the most described platform post (1).
Joint prosthesis the most according to claim 1, it is characterised in that described drive division includes multiple driving assembly (3), institute
State multiple driving assembly (3) to be arranged on correspondingly in the plurality of installation portion (12), to drive corresponding described installation
Described movable base plate (2) in portion (12) moves along the direction away from described platform post (1) axis.
Joint prosthesis the most according to claim 2, it is characterised in that the plurality of movable base plate (2) is laid on described peace
On assembling platform (11), and the outward flange of each described movable base plate (2) and described mounting platform (11) corresponding position
Outward flange is suitable.
Joint prosthesis the most according to claim 3, it is characterised in that described driving assembly (3) including:
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 around described locating dowel (31) to drive
Dynamic described movable base plate (2) moves along the direction away from described platform post (1) axis.
Joint prosthesis the most according to claim 4, it is characterised in that described cam (32) is oval cam, described
First end of oval cam is set in described locating dowel (31), and the second end of described oval cam is provided with through hole
(321)；
The hole, location (311) of the axis direction extension along described locating dowel (31) it is provided with in described locating dowel (31)；
Described actuator (33) includes body (331), be connected on described body (331) the first support bar (332),
With the second support bar (333) being connected on described body (331), described first support bar (332) is removably pacified
Being contained in described through hole (321), described second support bar (333) is removably mounted in hole, described location (311),
Described first support bar (332) is moved to drive described cam (32) around described fixed around described second support bar (333)
Position post (31) rotates.
Joint prosthesis the most according to claim 5, it is characterised in that projection (13) is set on described mounting platform (11),
Described mounting platform (11) is separated to form the plurality of installation portion (12) by described projection (13)；
It is described that described joint prosthesis also includes that elastic supporting member for supporting optical member (4), the first end of described elastic supporting member for supporting optical member (4) are connected to
On protruding (13), the second end of described elastic supporting member for supporting optical member (4) is connected to the second end of described oval cam, and works as institute
Stating movable base plate (2) when being in initial position, the bearing of trend of the centrage of described elastic supporting member for supporting optical member (4) is ellipse with described
The direction of the short axle of circular cam is consistent.
7. according to the joint prosthesis according to any one of claim 4 to 6, it is characterised in that described joint prosthesis also includes certainly
Latch mechanism (5), described self-locking mechanism (5) is used for locking the position of described movable base plate (2).
Joint prosthesis the most according to claim 7, it is characterised in that described self-locking mechanism (5) including:
Lock hole (51), described lock hole (51) is arranged on described movable base plate (2), and along described platform post (1)
Axis to away from described platform post (1) axial direction extend；
Self-locking body (52), described self-locking body (52) be fixedly installed in described installation portion (12) with described lock hole (51)
Coordinate to lock described movable base plate (2).
Joint prosthesis the most according to claim 8, it is characterised in that described lock hole (51) including:
Main aperture section (511), described main aperture section (511) near described platform post (1) axis position to away from
The axis direction of described platform post (1) extends；
Multiple auxiliary holes section (512), the plurality of auxiliary hole section (512) along described main aperture section (511) length direction arrange,
And be arranged in pairs at the both sides of described main aperture section (511), and each described auxiliary hole section (512) all with described main aperture section (511)
Connection the bearing of trend along described main aperture section (511) are gradually distance from described main aperture section (511).
Joint prosthesis the most according to claim 9, it is characterised in that described self-locking body (52) including:
Mounting post (521), described mounting post (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)
Being positioned in described mounting post (521), described two pieces of fins (522) coordinate with described auxiliary hole section (512) arranged in pairs,
Described two pieces of fins (522) are with the motion of described movable base plate (2) and folding.
11. joint prosthesis according to claim 4, it is characterised in that described joint prosthesis also includes cover plate (6), described
Cover plate (6) lid be located on described mounting platform (11), described cover plate (6) is provided with resigning hole (61), described in drive
Moving part (33) passes described resigning hole (61) to drive described cam (32) to move.
12. joint prosthesis according to claim 10, it is characterised in that described joint prosthesis includes cover plate (6), described
Mounting post (521) includes hollow pipe section (521a) and spiro rod section (521b), and described spiro rod section (521b) is screwed onto sky
In heart duct section (521a), described two pieces of fin (522) articulated position are positioned at described hollow pipe section (521a), described
The removal hole (62) corresponding with described spiro rod section (521b) it is provided with on cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267020.XA CN104814815B (en) | 2015-05-22 | 2015-05-22 | Joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267020.XA CN104814815B (en) | 2015-05-22 | 2015-05-22 | Joint prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104814815A CN104814815A (en) | 2015-08-05 |
| CN104814815B true CN104814815B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510267020.XA Active CN104814815B (en) | 2015-05-22 | 2015-05-22 | Joint prosthesis |
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| Country | Link |
|---|---|
| CN (1) | CN104814815B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840623B (en) * | 2019-12-04 | 2025-02-11 | 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 |
| CN111035480B (en) * | 2019-12-25 | 2025-06-10 | 北京爱康宜诚医疗器材有限公司 | Tibia prosthesis structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8480754B2 (en) * | 2001-05-25 | 2013-07-09 | Conformis, Inc. | Patient-adapted and improved articular implants, designs and related guide tools |
| US6942670B2 (en) * | 2000-12-27 | 2005-09-13 | Depuy Orthopaedics, Inc. | Prosthesis evaluation assembly and associated method |
| CN2768715Y (en) * | 2005-01-11 | 2006-04-05 | 郑诚功 | Improved artificial knee joint |
| JP5265372B2 (en) * | 2005-10-31 | 2013-08-14 | デピュイ・プロダクツ・インコーポレイテッド | Modular fixed and movable bearing prosthesis system |
| CN104207863B (en) * | 2006-03-21 | 2018-09-07 | 德普伊爱尔兰无限公司 | Introduce the total joint replacement prosthese of torque |
| US20080306602A1 (en) * | 2007-06-07 | 2008-12-11 | Worland Richard L | Tibia Cement Impaction System |
| CN101697931B (en) * | 2009-09-30 | 2011-09-28 | 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 |
| EP2953583B1 (en) * | 2013-02-07 | 2017-08-23 | Zimmer, Inc. | 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 |
-
2015
- 2015-05-22 CN CN201510267020.XA patent/CN104814815B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104814815A (en) | 2015-08-05 |
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Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee after: BEIJING AK MEDICAL Co.,Ltd. Address before: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee before: Beijing AKEC Medical Co.,Ltd. |
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