WO1995014445B1 - Articular prosthesis of the patella and distal femur - Google Patents
Articular prosthesis of the patella and distal femurInfo
- Publication number
- WO1995014445B1 WO1995014445B1 PCT/ES1994/000125 ES9400125W WO9514445B1 WO 1995014445 B1 WO1995014445 B1 WO 1995014445B1 ES 9400125 W ES9400125 W ES 9400125W WO 9514445 B1 WO9514445 B1 WO 9514445B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- components
- patellar
- trochlear
- femoral
- condyles
- Prior art date
Links
- 210000004417 Patella Anatomy 0.000 title 1
- 210000000689 upper leg Anatomy 0.000 title 1
- 230000000875 corresponding Effects 0.000 claims 3
- 230000004301 light adaptation Effects 0.000 claims 2
- 210000000988 Bone and Bones Anatomy 0.000 claims 1
- 238000002513 implantation Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 230000000877 morphologic Effects 0.000 claims 1
- 238000005457 optimization Methods 0.000 claims 1
- 230000002093 peripheral Effects 0.000 claims 1
- 210000003127 Knee Anatomy 0.000 abstract 1
- 210000003800 Pharynx Anatomy 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
Abstract
Assembly of femoral (1) and patellar (2) components for a knee prosthesis, and of which the trochlear slopes (11), the femoral condyles (12) and the rotulian facets (22) have the same curvature and shape, preferably spherical; the femoral component has a transverse split or condilotrochlear groove between the trochlea and each of the condyles (14). The cinematic interaction between the design of the rotulian crest (21) and the trochlear throat (13) provides for a smooth displacement of the rotulian component from the trochlea to the condyles and vice versa without friction with the condilotrochlear groove (c) and maintains constantly a contact of the superficial type with the femoral component.
Claims
REIVINDICACIONES MODIFICADAS MODIFIED CLAIMS
[recibidas por l a of icina Internacional el 3 de Junio de 1995 (03.06.95)[Received by the International Office on June 3, 1995 (03.06.95)
* reivindicaciones originales 1 - 12 no cambi an ; nueva reivindicación 13 incluida ; reivindicac ión original 13 se renumera como 14 ( 1 página) ] troclear, mientras que el radio único de cada una de sus dos secciones longitudinales mas periféricas coincide con el de las correspondientes circunferencias tangentes comunes mencionadas en la reivindicación 7.* original claims 1 - 12 do not change; new claim 13 included; original claim 13 is renumbered as 14 (1 page)] trochlear, while the unique radius of each of its two most peripheral longitudinal sections coincides with that of the corresponding common tangent circles mentioned in claim 7.
05 12. - Un conjunto de componentes de acuerdo a cualquiera de las reivindicaciones anteriores en el que la disposición de su cresta central obliga a las facetas medial y lateral del componente patelar a separarse del componente femoral al aproximarse al surco12. A set of components according to any of the previous claims in which the arrangement of its central ridge forces the medial and lateral facets of the patellar component to separate from the femoral component when approaching the groove
10 cóndilotroclear y a volver a tomar contacto con él una vez superada dicha hendidura .10 Condilotroclear and to return to take contact with him once this crack has been overcome.
13. - Un conjunto de componentes de acuerdo a cualquiera de las reivindicaciones anteriores en el cuál la geometría de las regiones no funcionales de las13. - A set of components according to any of the previous claims in which the geometry of the non-functional regions of the
15 superficies intraarticulares , es decir, las zonas de los componentes que no mantendrán contacto de área durante su movimiento relativo , pueden diseñarse libremente atendiendo a objetivos de optimización cinemática , resistencia estructural o adecuación morfológica.15 intra-articular surfaces, that is, the areas of the components that will not maintain area contact during their relative movement, can be freely designed according to objectives of kinematic optimization, structural strength or morphological adaptation.
20 14. - Un conjunto de componentes de acuerdo a cualquiera de las reivindicaciones anteriores en el que, con el fin de conseguir distintos modelos o prótesis a medida, cada faceta patelar , la vertiente troclear y la parte anterior del cóndilo femoral correspondientes pueden14. A set of components according to any of the preceding claims in which, in order to achieve different models or prostheses to measure, each patellar facet, the trochlear side and the anterior part of the corresponding femoral condyle can
25 construirse mediante superficies congruentes no esféricas ; la parte posterior de los cóndilos puede tener un radio sagital distinto que su porción anterior y las mitades medial y lateral de ambos componentes pueden ser asimétricas .
25 constructed by non-spherical congruent surfaces; the back of the condyles may have a different sagittal radius than its anterior portion and the medial and lateral halves of both components may be asymmetric.
DECLARACIÓN SEGÚN EL ARTICULO 19DECLARATION ACCORDING TO ARTICLE 19
La nueva reivindicación se refiere a la posibil ?,rl de modificar las partes de los componentes que no antit. n o no deben de mantener contacto durante su funcionamiento, respecto a la forma descrita en la modalidad preferente. La modificación de esas zonas no afectan a las características fundamentales de la invención y no es pertinente realizar cambios en la descripción ni en los dibujos, ya que cabe realizar multiplicidad de cambios. Así, por ejemplo con el fin de facilitar la implantación quirúrgica del dispositivo y mejorar su adaptación a la anatomía del hueso puede ser conveniente actuar sobre esas áreas no funcionales del diseño original. Por otra parte, para asegurarse de que a partir de la posición relativa entre el componente femoral (1) y pátelar (2) representada en la figura 4b, las facetas rotulianas (22) pierdan contacto con las vertientes trocleares (11) y evitar el riesgo de interferencia geométrica y conflicto cinemático, la parte correspondiente de dichas vertientes (11) pueden aplanarse, reduciendo convenientemente se curvatura.
The new claim refers to the possibility of modifying the parts of the components that are not antit. n or must not maintain contact during its operation, with respect to the form described in the preferred modality. The modification of these areas does not affect the fundamental characteristics of the invention and it is not pertinent to make changes in the description or in the drawings, since multiple changes can be made. Thus, for example in order to facilitate the surgical implantation of the device and improve its adaptation to the bone anatomy it may be convenient to act on those non-functional areas of the original design. On the other hand, to ensure that from the relative position between the femoral component (1) and patellar (2) represented in figure 4b, the patellar facets (22) lose contact with the trochlear sheds (11) and avoid the risk of geometric interference and kinematic conflict, the corresponding part of said slopes (11) can be flattened, conveniently reducing curvature.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95918446A EP0681817A1 (en) | 1993-11-25 | 1994-11-24 | Articular prosthesis of the patella and distal femur |
| AU81454/94A AU8145494A (en) | 1993-11-25 | 1994-11-24 | Articular prosthesis of the patella and distal femur |
| JP51485495A JP3589670B2 (en) | 1993-11-25 | 1994-11-24 | Prosthesis for the patella and distal femur |
| CA002155556A CA2155556C (en) | 1993-11-25 | 1994-11-24 | Articular prosthesis of the patella and distal femur |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP9302601 | 1993-11-25 | ||
| ES09302601A ES2070789B1 (en) | 1993-11-25 | 1993-11-25 | ARTICULAR PROTECTION OF THE KNEE AND DISTAL FEMUR. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995014445A1 WO1995014445A1 (en) | 1995-06-01 |
| WO1995014445B1 true WO1995014445B1 (en) | 1995-07-06 |
Family
ID=8283920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES1994/000125 WO1995014445A1 (en) | 1993-11-25 | 1994-11-24 | Articular prosthesis of the patella and distal femur |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0681817A1 (en) |
| JP (1) | JP3589670B2 (en) |
| AU (1) | AU8145494A (en) |
| CA (1) | CA2155556C (en) |
| ES (1) | ES2070789B1 (en) |
| MX (1) | MXPA94009154A (en) |
| UY (1) | UY23861A1 (en) |
| WO (1) | WO1995014445A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8556983B2 (en) | 2001-05-25 | 2013-10-15 | Conformis, Inc. | Patient-adapted and improved orthopedic implants, designs and related tools |
| US10085839B2 (en) | 2004-01-05 | 2018-10-02 | Conformis, Inc. | Patient-specific and patient-engineered orthopedic implants |
| US8480754B2 (en) | 2001-05-25 | 2013-07-09 | Conformis, Inc. | Patient-adapted and improved articular implants, designs and related guide tools |
| US8545569B2 (en) | 2001-05-25 | 2013-10-01 | Conformis, Inc. | Patient selectable knee arthroplasty devices |
| US9308091B2 (en) | 2001-05-25 | 2016-04-12 | Conformis, Inc. | Devices and methods for treatment of facet and other joints |
| GB2386558B (en) * | 2002-03-20 | 2005-09-14 | Sheo B Tibrewal | Apparatus for patella replacement |
| DE10220591B4 (en) * | 2002-05-08 | 2004-03-18 | Mathys Medizinaltechnik Ag | Joint prosthesis with an intermediate element with different radii of curvature |
| US7615081B2 (en) | 2002-05-24 | 2009-11-10 | Zimmer, Inc. | Femoral components for knee arthroplasty |
| US7387644B2 (en) * | 2003-11-07 | 2008-06-17 | University Of Vermont And State Agricultural College | Knee joint prosthesis with a femoral component which links the tibiofemoral axis of rotation with the patellofemoral axis of rotation |
| US7867236B2 (en) | 2003-12-30 | 2011-01-11 | Zimmer, Inc. | Instruments and methods for preparing a joint articulation surface for an implant |
| US7806898B2 (en) | 2004-07-09 | 2010-10-05 | Zimmer, Inc. | Modular guide systems and related rasps and methods for resecting a joint articulation surface |
| US8852195B2 (en) | 2004-07-09 | 2014-10-07 | Zimmer, Inc. | Guide templates for surgical implants and related methods |
| JP2008528110A (en) * | 2005-01-21 | 2008-07-31 | メディシンロッジ インコーポレイテッド | Pulley groove implant and related methods and instruments |
| US20070100461A1 (en) * | 2005-04-12 | 2007-05-03 | The University Of Vermont And State Agriculture College | Knee prosthesis |
| WO2006127486A2 (en) | 2005-05-20 | 2006-11-30 | Smith & Nephew, Inc. | Patello-femoral joint implant and instrumentation |
| AU2006325787B2 (en) * | 2005-12-15 | 2013-07-18 | Sergio Romagnoli | Distal femoral knee prostheses |
| WO2010099231A2 (en) | 2009-02-24 | 2010-09-02 | Conformis, Inc. | Automated systems for manufacturing patient-specific orthopedic implants and instrumentation |
| FR2958534B1 (en) * | 2010-04-09 | 2012-06-29 | Jean Francois Biegun | FEMALE PARTY WITH TROOPLE PATH WITH SOFT FLEXION. |
| US8834574B2 (en) | 2010-12-07 | 2014-09-16 | Zimmer, Inc. | Prosthetic patella |
| EP2754419B1 (en) | 2011-02-15 | 2024-02-07 | ConforMIS, Inc. | Patient-adapted and improved orthopedic implants |
| CN107280818B (en) * | 2016-03-31 | 2024-02-27 | 杨晨 | Femoral-side prosthesis and tibial-side prosthesis for artificial knee replacement |
| WO2017167172A1 (en) | 2016-03-31 | 2017-10-05 | 杨晨 | Prostheses for artificial knee replacement |
| CN117224288A (en) * | 2016-03-31 | 2023-12-15 | 温晓玉 | Femoral lateral medial and lateral unicondylar prosthesis and femoral trochlear prosthesis |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3964106A (en) * | 1975-03-03 | 1976-06-22 | Physical Systems, Inc. | Three-part total knee prosthesis |
| US4016606A (en) * | 1975-07-14 | 1977-04-12 | Research Corporation | Knee joint prosthesis |
| JPH0553501B2 (en) * | 1978-03-10 | 1993-08-10 | Biomedical Eng Corp | |
| US4309778A (en) * | 1979-07-02 | 1982-01-12 | Biomedical Engineering Corp. | New Jersey meniscal bearing knee replacement |
| US4340978A (en) * | 1979-07-02 | 1982-07-27 | Biomedical Engineering Corp. | New Jersey meniscal bearing knee replacement |
| US4353135A (en) * | 1980-05-09 | 1982-10-12 | Minnesota Mining And Manufacturing Company | Patellar flange and femoral knee-joint prosthesis |
| US4944756A (en) * | 1988-02-03 | 1990-07-31 | Pfizer Hospital Products Group | Prosthetic knee joint with improved patellar component tracking |
| FR2663839B1 (en) * | 1990-06-29 | 1997-09-19 | Omci | KNEE PROSTHESIS. |
| GB9018782D0 (en) * | 1990-08-28 | 1990-10-10 | Goodfellow John W | Phosthetic femoral components |
| GB9018737D0 (en) * | 1990-08-28 | 1990-10-10 | Goodfellow John W | Phosphetic patellar components |
| ATE137950T1 (en) * | 1991-01-18 | 1996-06-15 | Sulzer Medizinaltechnik Ag | KNEE JOINT PROSTHESIS |
-
1993
- 1993-11-25 ES ES09302601A patent/ES2070789B1/en not_active Expired - Lifetime
-
1994
- 1994-11-24 CA CA002155556A patent/CA2155556C/en not_active Expired - Fee Related
- 1994-11-24 JP JP51485495A patent/JP3589670B2/en not_active Expired - Fee Related
- 1994-11-24 EP EP95918446A patent/EP0681817A1/en not_active Withdrawn
- 1994-11-24 WO PCT/ES1994/000125 patent/WO1995014445A1/en not_active Application Discontinuation
- 1994-11-24 AU AU81454/94A patent/AU8145494A/en not_active Abandoned
- 1994-11-25 MX MXPA94009154A patent/MXPA94009154A/en unknown
- 1994-11-25 UY UY23861A patent/UY23861A1/en unknown
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