CA2196696A1 - Asymmetric femoral prosthesis - Google Patents
Asymmetric femoral prosthesisInfo
- Publication number
- CA2196696A1 CA2196696A1 CA002196696A CA2196696A CA2196696A1 CA 2196696 A1 CA2196696 A1 CA 2196696A1 CA 002196696 A CA002196696 A CA 002196696A CA 2196696 A CA2196696 A CA 2196696A CA 2196696 A1 CA2196696 A1 CA 2196696A1
- Authority
- CA
- Canada
- Prior art keywords
- articulating surface
- femoral
- anterior
- articulating
- surface portions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Prostheses (AREA)
Abstract
A knee prosthesis includes a femoral prosthesis member (60) having anterior (12), distal (15), and posterior (13, 14) articulating surface portions. The articulating surface portions comprising a pair of condylar surface portions (13, 14, 61, 62) that are positioned at differing distances from the non-articulating surface plane. In one form the posterolateral articulating surface is a greater distance away from the anterior non-articulating surface than the posteromedial articulating surface (Figs. 1 and 15). The femoral prosthesis has a non-articulating surface that includes a plurality of intersecting surfaces including at least distal (23, 24), anterior (17, 18), and posterior (20, 21) surfaces for receiving the patient's distal femur after it has been surgically prepared. A
tibial component (50) has concave articulating surfaces that receive the femoral component articulating surface portions during use.
The angle of femoral rotation generally about the mechanical axis generally changes when going through a normal range of motion of the patient's knee while maintaining alignment of the femoral and tibial articular surfaces. The femoral prosthesis also has a proximal anterior region (65) that is concave (Fig. 19). An improved patella groove design is also shown (Figs. 20-24).
tibial component (50) has concave articulating surfaces that receive the femoral component articulating surface portions during use.
The angle of femoral rotation generally about the mechanical axis generally changes when going through a normal range of motion of the patient's knee while maintaining alignment of the femoral and tibial articular surfaces. The femoral prosthesis also has a proximal anterior region (65) that is concave (Fig. 19). An improved patella groove design is also shown (Figs. 20-24).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/285,917 US5549688A (en) | 1994-08-04 | 1994-08-04 | Asymmetric femoral prosthesis |
| US08/285,917 | 1994-08-04 | ||
| PCT/US1995/009705 WO1996003939A1 (en) | 1994-08-04 | 1995-08-01 | Asymmetric femoral prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2196696A1 true CA2196696A1 (en) | 1996-02-15 |
| CA2196696C CA2196696C (en) | 2006-03-28 |
Family
ID=36123345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002196696A Expired - Fee Related CA2196696C (en) | 1994-08-04 | 1995-08-01 | Asymmetric femoral prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2196696C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017180234A1 (en) * | 2016-04-11 | 2017-10-19 | Joint Innovation Technology Llc | System for side insertion of a bicondylar mini knee implant |
-
1995
- 1995-08-01 CA CA002196696A patent/CA2196696C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017180234A1 (en) * | 2016-04-11 | 2017-10-19 | Joint Innovation Technology Llc | System for side insertion of a bicondylar mini knee implant |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2196696C (en) | 2006-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |