CN107616859A - Single condyle knee-joint prosthesis - Google Patents
Single condyle knee-joint prosthesis Download PDFInfo
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- CN107616859A CN107616859A CN201710978309.1A CN201710978309A CN107616859A CN 107616859 A CN107616859 A CN 107616859A CN 201710978309 A CN201710978309 A CN 201710978309A CN 107616859 A CN107616859 A CN 107616859A
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- China
- Prior art keywords
- plate body
- tibial
- joint prosthesis
- tibial insert
- condyle
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Abstract
The invention provides a kind of single condyle knee-joint prosthesis, including：Condyle of femur, tibial insert and tibial plateau, condyle of femur have inner mold face and the first articular surface；Tibial insert has second joint face and bottom surface；Tibial plateau has upper and lower surface；Wherein, first articular surface of condyle of femur and the second joint face of tibial insert fit, the bottom surface of tibial insert and the upper surface of tibial plateau can relatively movably connect, there is position limiting structure, position limiting structure is used to limit the displacement between tibial insert and tibial plateau between the bottom surface of tibial insert and the upper surface of tibial plateau.So as to effectively prevent the dislocation of tibial insert, solves the problems, such as easily dislocation between the tibial insert and tibial plateau of movable platform type list condyle knee-joint prosthesis of the prior art.
Description
Technical field
The present invention relates to area of medical devices, in particular to a kind of single condyle knee-joint prosthesis.
Background technology
With the increasingly enhancing of Micro-traumatic concept in clinic, single condylar-type knee-joint prosthesis is gradually relied by the parent of clinician.
Before the treatment during the osteoarthritis of inner side, single condylar-type knee-joint prosthesis has obvious advantage.Such as wound it is small, lose blood less, perform the operation
Time is short, patients ' recovery is fast etc..
At present, single condylar-type knee-joint prosthesis mainly has two kinds of canonical forms of fixed platform and movable platform.Movable platform type
Single condyle knee-joint prosthesis is applied in clinic than wide, its condyle of femur and tibial insert matched, tibial insert and shin bone
Freely activity, greatly facilitates the installation in doctor's art, reduces polyethylene wear amount at a specified future date between platform.Its shortcoming is due to
There is no any constraint between tibial insert and tibial plateau, the dislocation of tibial insert easily occurs, once dislocation occurs it is necessary to enter
Row second operation, spiritual pain and loss economically are brought for patient.
The content of the invention
It is a primary object of the present invention to provide a kind of single condyle knee-joint prosthesis, to solve movable platform of the prior art
The problem of easily being dislocated between the tibial insert and tibial plateau of type list condyle knee-joint prosthesis.
To achieve these goals, the invention provides a kind of single condyle knee-joint prosthesis, including：Condyle of femur, condyle of femur tool
There are inner mold face and the first articular surface；Tibial insert, tibial insert have second joint face and bottom surface；Tibial plateau, tibial plateau
With upper and lower surface；Wherein, the first articular surface of condyle of femur and the second joint face of tibial insert fit, shin bone pad
The bottom surface of piece and the upper surface of tibial plateau can relatively movably connect, the bottom surface of tibial insert and the upper surface of tibial plateau it
Between there is position limiting structure, position limiting structure is used to limit the displacement between tibial insert and tibial plateau.
Further, position limiting structure includes：Limit stop post, it is arranged on the upper surface of tibial plateau；Limited impression, open up
In the bottom surface of tibial insert；Wherein, limit stop post is slideably embedded in limited impression to limit tibial insert and tibial plateau
Between displacement.
Further, position limiting structure includes：Limit stop post, it is arranged on the bottom surface of tibial insert；Limited impression, it is opened in shin
On the upper surface of bone platform；Wherein, limit stop post is slideably embedded in limited impression to limit tibial insert and tibial plateau
Between displacement.
Further, limited impression is bar-shaped trough.
Further, condyle of femur includes：First plate body, the second plate body and the 3rd plate body, the first plate body, the second plate body and
Three plate bodys are sequentially connected, and the first side of the first side of the first plate body, the first side of the second plate body and the 3rd plate body is total to
With inner mold face is formed, the second side of the second side of the first plate body, the second side of the second plate body and the 3rd plate body is common
Form the first articular surface；Wherein, the second joint face of the second side of the second plate body and tibial insert is fitted and connected.
Further, the first side of the first side of the first plate body, the first side of the second plate body and the 3rd plate body
It is plane, there is the first default angle, the second plate body between the first side of the first plate body and the first side of the second plate body
First side and the 3rd plate body first side between there is the second default angle.
Further, it is provided with the first fixation hair in the first side of the first plate body and the first side of the second plate body
Thorn.
Further, the first fixation burr in the first side of the first plate body and the first side of the second plate body is
It is multiple.
Further, it is provided with fixed-wing in the first side of the 3rd plate body.
Further, fixed-wing is wedge shape.
Further, the first articular surface is arcwall face, and second joint face is the arcwall face being adapted with the first articular surface.
Further, the second fixation burr is provided with the lower surface of tibial plateau.
Further, the second fixation burr is multiple.
Using single condyle knee-joint prosthesis of technical solution of the present invention, including：Condyle of femur, tibial insert and tibial plateau, stock
Bone condyle has inner mold face and the first articular surface；Tibial insert has second joint face and bottom surface；Tibial plateau have upper surface and
Lower surface；Wherein, the first articular surface of condyle of femur and the second joint face of tibial insert fit, the bottom surface of tibial insert and shin
The upper surface of bone platform can relatively movably connect, and have spacing knot between the bottom surface of tibial insert and the upper surface of tibial plateau
Structure, position limiting structure are used to limit the displacement between tibial insert and tibial plateau.So as to effectively prevent tibial insert
Dislocation, solve and easily take off between the tibial insert and tibial plateau of movable platform type list condyle knee-joint prosthesis of the prior art
The problem of position.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is optional a kind of structural representation of single condyle knee-joint prosthesis according to embodiments of the present invention；And
Fig. 2 is optional a kind of cross-sectional view of single condyle knee-joint prosthesis according to embodiments of the present invention；
Fig. 3 is optional a kind of structural representation of the condyle of femur of single condyle knee-joint prosthesis according to embodiments of the present invention；
Fig. 4 is optional a kind of knot at a visual angle of the tibial insert of single condyle knee-joint prosthesis according to embodiments of the present invention
Structure schematic diagram；
Fig. 5 is optional a kind of knot at another visual angle of the condyle of femur of single condyle knee-joint prosthesis according to embodiments of the present invention
Structure schematic diagram；And
Fig. 6 is optional a kind of structural representation of the tibial plateau of single condyle knee-joint prosthesis according to embodiments of the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, condyle of femur；11st, inner mold face；12nd, the first articular surface；13rd, the first plate body；14th, the second plate body；15th, the 3rd plate
Body；16th, first burr is fixed；17th, fixed-wing；20th, tibial insert；21st, second joint face；22nd, bottom surface；30th, tibial plateau；
31st, upper surface；32nd, lower surface；33rd, second burr is fixed；40th, position limiting structure；41st, limit stop post；42nd, limited impression.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Single condyle knee-joint prosthesis according to embodiments of the present invention, as shown in Figures 1 to 6, including：Condyle of femur 10, shin bone pad
Piece 20 and tibial plateau 30, condyle of femur have the articular surface 12 of inner mold face 11 and first；Tibial insert 20 has second joint face 21
With bottom surface 22；Tibial plateau 30 has upper surface 31 and lower surface 32；Wherein, the first articular surface 12 and shin bone pad of condyle of femur 10
The second joint face 21 of piece 20 fits, and the bottom surface 22 of tibial insert 20 can be relatively movably with the upper surface 31 of tibial plateau 30
Connection, has position limiting structure 40, position limiting structure 40 is used between the bottom surface 22 of tibial insert 20 and the upper surface 31 of tibial plateau 30
Displacement between limitation tibial insert 20 and tibial plateau 30.
Using single condyle knee-joint prosthesis of technical solution of the present invention, including：Condyle of femur 10, tibial insert 20 and tibial plateau
30, condyle of femur 10 has inner mold face and the first articular surface；Tibial insert 20 has second joint face and bottom surface；Tibial plateau 30 has
There is upper and lower surface；Wherein, the first articular surface of condyle of femur 10 fits with the second joint face of tibial insert 20, shin bone
The bottom surface of pad 20 can be relatively movably connected with the upper surface of tibial plateau 30, bottom surface and the tibial plateau 30 of tibial insert 20
Upper surface between there is position limiting structure, position limiting structure is used to limit the displacement between tibial insert 20 and tibial plateau 30.
So as to effectively prevent the dislocation of tibial insert 20, solves movable platform type list condyle knee-joint prosthesis of the prior art
The problem of easily being dislocated between tibial insert 20 and tibial plateau 30.
When it is implemented, as shown in Figure 2, Figure 3 and Figure 4, position limiting structure 40 includes：Limit stop post 41 and limited impression 42,
Limit stop post 41 is arranged on the upper surface 31 of tibial plateau 30；Limited impression 42 is opened on the bottom surface 22 of tibial insert 20；
Wherein, limit stop post 41 is slideably embedded in limited impression 42 to limit the displacement between tibial insert 20 and tibial plateau 30
Amount.Alternatively, limited impression 42 is bar-shaped trough, and bearing of trend of the limit stop post 41 along limited impression 42 slides.
As another embodiment, limit stop post 41 can also be arranged on the bottom surface 22 of the tibial insert 20, spacing
Groove 42 is opened on the upper surface 31 of tibial plateau 30, and limit stop post 41 is slideably embedded in limited impression 42 to limit shin
Displacement between bone pad 20 and tibial plateau 30.
As shown in figure 5, condyle of femur 10 includes：First plate body 13, the second plate body 14 and the 3rd plate body 15, the first plate body 13,
Second plate body 14 and the 3rd plate body 15 are sequentially connected, the first side of the first plate body 13, the first side of the second plate body 14 and
The first side of 3rd plate body 15 is collectively forming inner mold face 11, the second side of the first plate body 13, the second side of the second plate body 14
The second side of face and the 3rd plate body 15 is collectively forming the first articular surface 12；The articular surface 12 of inner mold face 11 and first is condyle of femur
10 two relative sides, the second side of the second plate body 14 are fitted and connected with the second joint face 21 of tibial insert 20.
Further, the of the first side of the first plate body 13, the first side of the second plate body 14 and the 3rd plate body 15
One side is plane, has the first default folder between the first side of the first plate body 13 and the first side of the second plate body 14
Angle, there is the second default angle between the first side of the second plate body 14 and the first side of the 3rd plate body 15.Specifically, first
Default angle and the second default angle are obtuse angle, so as to corresponding sclerotin form fit.
It is fixed in order that condyle of femur 10 can be firmly embedded into corresponding sclerotin, further, the first plate body 13
First side and the second plate body 14 first side on be provided with the first fixation burr 16, further, the first plate body
The first fixation burr 16 in 13 first side and the first side of the second plate body 14 is multiple.By beaing condyle of femur
First fixation burr 16 is embedded in corresponding sclerotin condyle of femur 10 is fixed by 10.
In order to strengthen the anti-rotation function of condyle of femur 10, further, it is provided with the first side of the 3rd plate body 15 solid
Determine the wing 17, fixed-wing 17 is wedge shape.When beaing condyle of femur 10, fixed-wing 17 can be embedded in sclerotin together, due to fixed-wing 17
Wedge structure, can effectively prevent condyle of femur 10 fix after rotate.
As shown in Figure 5 and Figure 6, the first articular surface 12 is arcwall face, and second joint face 21 is to be adapted with the first articular surface
Arcwall face so that the first articular surface 12 and second joint face 21 can be bonded completely.
In order that tibial plateau 30 can be preferably fixed on corresponding sclerotin, further, as shown in figure 3, shin bone
The second fixation burr 33 is provided with the lower surface 32 of platform 30, second fixes burr 33 to be multiple, by beaing tibial plateau
30, which can will be such that the second fixation burr 33 is embedded in corresponding sclerotin, fixes tibial plateau 30.
In process of clinical application, first fixation burr 16 and fixed-wing 17 are embedded in sclerotin by beaing condyle of femur 10,
First fixation burr 16 realizes uniform fixation, reduces the loss of bone amount, and fixed-wing 17 strengthens the anti-rotation function of condyle of femur 10,
First articular surface 12 of the bottom of condyle of femur 10 is bonded with the second joint face 21 on the top of tibial insert 20, forms joint-friction face,
The bottom surface 22 of tibial insert 20 is bonded with the upper surface 31 of tibial plateau 30, the limit stop post 41 of the upper surface 31 of tibial plateau 30
It is deep into the limited impression 42 on the bottom surface 22 of tibial insert 20, can be by tibial plateau 30 by beaing tibial plateau 30
Lower surface 32 on second fixation burr 33 be embedded into sclerotin, realize the fixation of tibial plateau 30.
After installation, during the flexion-extension motion of condyle of femur 10, tibial insert 20 can move with condyle of femur 10,
Limit stop post 41 can prevent the support scope of the abjection tibial plateau 30 of tibial insert 20.
In addition, in order that sclerotin can preferably be grown into, further, the inner mold face 11 of condyle of femur 10 and tibial plateau 30
Lower surface 32 can be with sprayed biological coating material, such as pure titanium coating, hydroxyapatite coating layer etc..
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
- A kind of 1. single condyle knee-joint prosthesis, it is characterised in that including：Condyle of femur (10), the condyle of femur have inner mold face (11) and the first articular surface (12)；Tibial insert (20), the tibial insert (20) have second joint face (21) and bottom surface (22)；Tibial plateau (30), the tibial plateau (30) have upper surface (31) and lower surface (32)；Wherein, first articular surface (12) of the condyle of femur (10) and the second joint face of the tibial insert (20) (21) fit, the bottom surface (22) of the tibial insert (20) can with the upper surface (31) of the tibial plateau (30) Relatively movably connect, the bottom surface (22) of the tibial insert (20) and the upper surface of the tibial plateau (30) (31) there is position limiting structure (40), the position limiting structure (40) is put down for limiting the tibial insert (20) with the shin bone between Displacement between platform (30).
- 2. single condyle knee-joint prosthesis according to claim 1, it is characterised in that the position limiting structure (40) includes：Limit stop post (41), it is arranged on the upper surface (31) of the tibial plateau (30)；Limited impression (42), it is opened in the bottom surface (22) of the tibial insert (20)；Wherein, the limit stop post (41) is slideably embedded in the limited impression (42) to limit the tibial insert (20) With the displacement between the tibial plateau (30).
- 3. single condyle knee-joint prosthesis according to claim 1, it is characterised in that the position limiting structure (40) includes：Limit stop post (41), it is arranged on the bottom surface (22) of the tibial insert (20)；Limited impression (42), it is opened on the upper surface (31) of the tibial plateau (30)；Wherein, the limit stop post (41) is slideably embedded in the limited impression (42) to limit the tibial insert (20) With the displacement between the tibial plateau (30).
- 4. single condyle knee-joint prosthesis according to any one of Claims 2 or 3, it is characterised in that the limited impression (42) For bar-shaped trough.
- 5. single condyle knee-joint prosthesis according to claim 1, it is characterised in that the condyle of femur (10) includes：First plate body (13), the second plate body (14) and the 3rd plate body (15), first plate body (13), second plate body (14) It is sequentially connected with the 3rd plate body (15), the first side of first plate body (13), the first of second plate body (14) The first side of side and the 3rd plate body (15) is collectively forming the inner mold face (11), and the of first plate body (13) The second side of two side faces, the second side of second plate body (14) and the 3rd plate body (15) is collectively forming described One articular surface (12)；Wherein, the second side of second plate body (14) and the second joint face (21) of the tibial insert (20) It is fitted and connected.
- 6. single condyle knee-joint prosthesis according to claim 5, it is characterised in that described the first of first plate body (13) The first side of side, the first side of second plate body (14) and the 3rd plate body (15) is flat Face, have first between the first side of first plate body (13) and the first side of second plate body (14) Default angle, has between the first side of second plate body (14) and the first side of the 3rd plate body (15) There is the second default angle.
- 7. according to single condyle knee-joint prosthesis described in any one of claim 5 or 6, it is characterised in that first plate body (13) The first side and second plate body (14) the first side on be provided with the first fixation burr (16).
- 8. single condyle knee-joint prosthesis according to claim 7, it is characterised in that described the first of first plate body (13) The first fixation burr (16) in the first side of side and second plate body (14) is multiple.
- 9. according to single condyle knee-joint prosthesis described in any one of claim 5 or 6, it is characterised in that the 3rd plate body (15) The first side on be provided with fixed-wing (17).
- 10. single condyle knee-joint prosthesis according to claim 9, it is characterised in that the fixed-wing (17) is wedge shape.
- 11. single condyle knee-joint prosthesis according to claim 1, it is characterised in that first articular surface (12) is arc Face, the second joint face (21) are the arcwall face being adapted with first articular surface.
- 12. single condyle knee-joint prosthesis according to claim 1, it is characterised in that the tibial plateau (30) it is described under The second fixation burr (33) is provided with surface (32).
- 13. single condyle knee-joint prosthesis according to claim 12, it is characterised in that the second fixation burr (33) is more It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978309.1A CN107616859A (en) | 2017-10-18 | 2017-10-18 | Single condyle knee-joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978309.1A CN107616859A (en) | 2017-10-18 | 2017-10-18 | Single condyle knee-joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107616859A true CN107616859A (en) | 2018-01-23 |
Family
ID=61091977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710978309.1A Pending CN107616859A (en) | 2017-10-18 | 2017-10-18 | Single condyle knee-joint prosthesis |
Country Status (1)
| Country | Link |
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| CN (1) | CN107616859A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109431660A (en) * | 2018-12-17 | 2019-03-08 | 北京爱康宜诚医疗器材有限公司 | Tibia support and single condyle prosthese with it |
| CN109567987A (en) * | 2019-02-01 | 2019-04-05 | 北京爱康宜诚医疗器材有限公司 | Single condyle knee-joint prosthesis |
| CN110538012A (en) * | 2019-09-17 | 2019-12-06 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis |
| CN111281614A (en) * | 2020-03-11 | 2020-06-16 | 北京市春立正达医疗器械股份有限公司 | Knee joint prosthesis |
| CN113995559A (en) * | 2020-09-15 | 2022-02-01 | 北京力达康科技有限公司 | Single condyle knee joint prosthesis |
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| CN109567987A (en) * | 2019-02-01 | 2019-04-05 | 北京爱康宜诚医疗器材有限公司 | Single condyle knee-joint prosthesis |
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| CN111281614A (en) * | 2020-03-11 | 2020-06-16 | 北京市春立正达医疗器械股份有限公司 | Knee joint prosthesis |
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| CN113995559A (en) * | 2020-09-15 | 2022-02-01 | 北京力达康科技有限公司 | Single condyle knee joint prosthesis |
| CN113995559B (en) * | 2020-09-15 | 2022-12-06 | 北京力达康科技有限公司 | Single condyle knee joint prosthesis |
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