FR2705885A1 - Assembly for fitting a unicompartmental knee prosthesis - Google Patents
Assembly for fitting a unicompartmental knee prosthesis Download PDFInfo
- Publication number
- FR2705885A1 FR2705885A1 FR9306797A FR9306797A FR2705885A1 FR 2705885 A1 FR2705885 A1 FR 2705885A1 FR 9306797 A FR9306797 A FR 9306797A FR 9306797 A FR9306797 A FR 9306797A FR 2705885 A1 FR2705885 A1 FR 2705885A1
- Authority
- FR
- France
- Prior art keywords
- implant
- assembly
- hole
- trial implant
- conical
- 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
- 210000003127 knee Anatomy 0.000 title claims description 4
- 239000007943 implant Substances 0.000 claims abstract description 41
- 238000005553 drilling Methods 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/461—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Transplantation (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Dentistry (AREA)
- Physical Education & Sports Medicine (AREA)
- Medical Informatics (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
Ensemble de Dose d'une Drothèse unicompartimentale du genou. Dose set of a unicompartmental knee prosthesis.
L'invention concerne plus particulièrement la pose d'un implant condylien pour une prothèse unicompartimentale du genou. The invention relates more particularly to the placement of a condylar implant for a unicompartmental knee prosthesis.
A ce jour différentes solutions sont employées pour permettre la pose d'un implant condylien fémoral en ayant pour objectif de respecter un positionnement parfait de l'implant dans les trois plans de l'espace. To date, various solutions are used to allow the placement of a femoral condylar implant with the objective of respecting a perfect positioning of the implant in the three planes of the space.
Dans un premier temps, on utilise un gabarit de perçage présentant un trou pour le guidage d'une mèche. Ce gabarit permet le choix du bon positionnement de l'implant, qui est matéralisé par un trou. Dans un deuxième temps, on met en place un gabarit d'essai dans le trou précédemment percé et l'on effectue les tests de flexion - extension.Firstly, a drilling template is used which has a hole for guiding a drill bit. This template allows the choice of the correct positioning of the implant, which is materialized by a hole. Secondly, a test template is put in place in the previously drilled hole and the flexion - extension tests are carried out.
D'autres solutions utilisent un guide de coupe fémoral postérieur composé d'une tige solidaire en bout d'un patin d'appui courbe dont le rayon de courbure correspond au patin condylien. La tige est perçée pour le passage du foret. Cette tige est disposée angulairement par rapport au patin afin d'orienter le trou de fixation. Aucune possibilité de règlage angulaire entre la tige et le patin n'est prévue. Other solutions use a posterior femoral cutting guide composed of a rod integral at the end of a curved support pad whose radius of curvature corresponds to the condylar pad. The rod is drilled for the passage of the drill. This rod is arranged angularly with respect to the shoe in order to orient the fixing hole. No possibility of angular adjustment between the rod and the shoe is provided.
Ces différentes solutions ne permettent donc pas d'avoir une orientation angulaire variable afin de faciliter le travail du chirurgien, et ne sont pas de mises en oeuvre rapides. These different solutions therefore do not make it possible to have a variable angular orientation in order to facilitate the work of the surgeon, and are not quick to implement.
L'invention s'est fixée pour but de remédier à ces inconvénients de manière sûre, simple, efficace et rationnelle. The object of the invention is to remedy these drawbacks in a safe, simple, efficient and rational manner.
Le problème que se propose de résoudre l'invention est d'éviter l'emploi d'un gabarit de perçage indépendant, en ayant pour objectif d'utiliser un implant d'essai qui fasse office de gabarit de perçage. The problem which the invention proposes to solve is to avoid the use of an independent drilling template, with the objective of using a test implant which acts as a drilling template.
Pour résoudre un tel problème il a été conçu et mis au point un ensemble qui comprend un implant d'essai apte à être accouplé, d'une manière temporaire, à un élément apte à assurer le guidage d'un moyen de perçage. To solve such a problem, an assembly has been designed and developed which comprises a test implant capable of being temporarily coupled to an element capable of guiding a drilling means.
Pour résoudre le problème posé de rendre solidaire l'implant d'essai et l'élément de guidage, L'implant d'essai comprend un trou conique pour l'engagement d'une portée complémentaire de l'élément de guidage en réalisant un système de cône autoblocant. To solve the problem posed of making the test implant and the guide element integral, The test implant comprises a conical hole for the engagement of a complementary range of the guide element by making a system self-locking cone.
La portée complémentaire est formée par une douille débouchante assurant le guidage d'une mèche. The complementary surface is formed by a through socket ensuring the guidance of a drill bit.
L'extrémité de la douille est conique pour être engagée et centrée dans le trou de l'implant d'essai. The end of the socket is tapered to be engaged and centered in the hole of the trial implant.
Pour résoudre le problème posé de faciliter le positionnement de l'implant d'essai au niveau de l'implant fémoral correspondant, la douille est solidaire d'un manche de préhension qui permet, en outre, l'orientation angulaire dans différents plans de l'espace. To solve the problem posed of facilitating the positioning of the trial implant at the level of the corresponding femoral implant, the socket is integral with a grip handle which also allows angular orientation in different planes of the 'space.
Pour résoudre le problème posé d'assurer la fixation temporaire de l'implant d'essai, au niveau du condyle, le trou conique de l'implant coopère avec une portée conique d'un plot cylindrique engagé dans le trou préalablement percé au niveau du condyle fémoral. To solve the problem posed of ensuring the temporary fixation of the trial implant, at the level of the condyle, the conical hole of the implant cooperates with a conical bearing of a cylindrical stud engaged in the hole previously drilled at the level of the femoral condyle.
L'invention est exposée, ci-après plus en détail à l'aide des dessins annexés, dans lesquels:
La figure 1 est une vue en perspective avant montage des élements constitutifs de l'ensemble de pose selon l'invention.The invention is set out below in more detail using the appended drawings, in which:
Figure 1 is a perspective view before mounting of the constituent elements of the installation assembly according to the invention.
La figure 2 est une vue en perspective montrant l'accouplement de l'implant d'essai et du guide mèche. Figure 2 is a perspective view showing the coupling of the trial implant and the drill guide.
La figure 3 est une vue en coupe montrant l'utilisation de l'ensemble notamment pour le perçage du condyle. Figure 3 is a sectional view showing the use of the assembly in particular for piercing the condyle.
La figure 4 est une vue correspondant à la figure 3 après retrait de l'ensemble de pose et mise en place de l'implant au moyen du plot de centrage. Figure 4 is a view corresponding to Figure 3 after removal of the delivery assembly and implementation of the implant by means of the centering stud.
Comme le montre la figure 1, I'ensemble de pose comprend un implant d'essai (1), un élément (2) apte à assurer le guidage
d'un moyen de perçage, notamment une mèche, et un plot rapporté de fixation (3).As shown in Figure 1, the delivery assembly includes a trial implant (1), an element (2) capable of providing guidance
a drilling means, in particular a drill bit, and an attached fixing stud (3).
L'implant d'essai (1) est profilé dans les plans frontal et sagittal pour correspondre à la courbure anatomique du condyle fémoral. The trial implant (1) is profiled in the frontal and sagittal planes to correspond to the anatomical curvature of the femoral condyle.
La forme de cet implant d'essai correspond à la forme de l'implant définitif qui sera mis en place. L'implant (1) est conformé pour être accouplé avec capacité d'orientation angulaire à l'élément (2).The shape of this trial implant corresponds to the shape of the final implant that will be placed. The implant (1) is shaped to be coupled with angular orientation capacity to the element (2).
Dans ce but, L'implant (1) présente un trou conique débouchant (la) formé dans l'épaisseur dudit implant à l'endroit d'un plot de centrage et d'ancrage que présente l'implant définitif. Ce trou (la) coopère avec une douille débouchante (2a) conformée pour assurer le guidage d'une mèche (M). L'extrémité (2a1) de la douille présente une portée tronconique de forme complémentaire à celle du trou (1 a). Le corps de la douille est solidaire d'un manche de préhension (2b) pour manoeuvrer l'implant d'essai (1) par rapport au condyle. For this purpose, the implant (1) has a conical opening hole (la) formed in the thickness of said implant at the location of a centering and anchoring stud that has the final implant. This hole (la) cooperates with a through socket (2a) shaped to guide a drill bit (M). The end (2a1) of the sleeve has a frustoconical bearing shape complementary to that of the hole (1a). The body of the sleeve is integral with a grip handle (2b) for maneuvering the trial implant (1) relative to the condyle.
Ces dispositions permettent donc d'accoupler l'implant (1) à l'élément de guidage (2) selon différentes positions angulaires suite à l'engagement de la portée tronconique (2a1) dans le trou (la) de l'implant d'essai
L'utilisation de l'ensemble telle que défini est particulièrement simple et efficace.These arrangements therefore make it possible to couple the implant (1) to the guide element (2) according to different angular positions following the engagement of the frustoconical bearing (2a1) in the hole (la) of the implant. test
The use of the set as defined is particularly simple and effective.
L'implant d'essai (1) est accouplé en bout de la douille (2a) de l'élément (2) avec possibilité d'orientations angulaires dudit implant par rapport au guide (figure 1). The test implant (1) is coupled to the end of the sleeve (2a) of the element (2) with the possibility of angular orientations of said implant relative to the guide (FIG. 1).
L'opérateur tient manuellement l'élément (2) par le manche (2b) pour positionner l'ensemble,notamment l'implant d'essai (1), au niveau du condyle (c). II est alors possible de procéder à l'opération de perçage en tant que telle en introduisant la mèche (M) dans la douille (2a) positionnée dans le trou (la) de l'implant (1) (figure 3). The operator manually holds the element (2) by the handle (2b) to position the assembly, in particular the trial implant (1), at the level of the condyle (c). It is then possible to proceed with the drilling operation as such by introducing the drill bit (M) into the socket (2a) positioned in the hole (la) of the implant (1) (FIG. 3).
Le condyle étant ainsi percé, il suffit d'enlever l'ensemble et de désolidariser l'implant (1) de l'élément (2), en vue de fixer l'implant (1) au moyen du plot (3) (figure 4). Dans ce but ce plot (3) présente une tête (3a) et une portée cylindrique (3b). La tête (3a) est de forme tronconique correspondant au trou (la). La tige (3b) est destinée à être engagée dans le trou préalablement percé en position de centrage de la tête (3a) dans le trou (la). The condyle being thus pierced, it suffices to remove the assembly and to separate the implant (1) from the element (2), in order to fix the implant (1) by means of the stud (3) (figure 4). For this purpose this stud (3) has a head (3a) and a cylindrical surface (3b). The head (3a) is of frustoconical shape corresponding to the hole (la). The rod (3b) is intended to be engaged in the previously drilled hole in the centering position of the head (3a) in the hole (la).
Les avantages ressortent bien de la description, en particulier on souligne et on rappelle
- la rapidité de mise en oeuvre
- la possibilité d'orientation de l'implant d'essai par rapport au guide de perçage. The advantages are apparent from the description, in particular it is emphasized and recalled
- the speed of implementation
- the possibility of orienting the trial implant relative to the drilling guide.
- la simplicité de réalisation
- I'utilisation d'un implant d'essai en tant que gabarit de perçage.- the simplicity of realization
- the use of a trial implant as a drilling template.
- la mise en place après perçage, au moyen du plot, de l'implant d'essai qui est à l'image de l'implant définitif. - the installation after drilling, by means of the stud, of the test implant which is like the final implant.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9306797A FR2705885B1 (en) | 1993-06-01 | 1993-06-01 | Installation set for a unicompartmental knee prosthesis. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9306797A FR2705885B1 (en) | 1993-06-01 | 1993-06-01 | Installation set for a unicompartmental knee prosthesis. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2705885A1 true FR2705885A1 (en) | 1994-12-09 |
| FR2705885B1 FR2705885B1 (en) | 1995-07-28 |
Family
ID=9447834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9306797A Expired - Fee Related FR2705885B1 (en) | 1993-06-01 | 1993-06-01 | Installation set for a unicompartmental knee prosthesis. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2705885B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995017860A1 (en) * | 1993-12-30 | 1995-07-06 | Plus Endoprothetik Ag | Knee endoprosthesis |
| WO2000061065A1 (en) | 1999-04-14 | 2000-10-19 | Dussere Louis Marie | Ergonomic teat |
| US6214051B1 (en) * | 1997-01-17 | 2001-04-10 | Ceramtec Ag Innovative Ceramic Engineering | Fixation of a ceramic structural member by way of gliding in a femoral part |
| WO2003013373A1 (en) * | 2001-08-10 | 2003-02-20 | Depuy International Limited | Guide for locating femur resection plane |
| US6692503B2 (en) * | 1999-10-13 | 2004-02-17 | Sdgi Holdings, Inc | System and method for securing a plate to the spinal column |
| WO2014096904A1 (en) * | 2012-12-19 | 2014-06-26 | Industrias Medicas Sampedro S.A.S. | Plate-centering device for orthopedic surgery |
| GB2633841A (en) * | 2023-09-25 | 2025-03-26 | Osstec Ltd | Trialling system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140642A2 (en) * | 1983-10-19 | 1985-05-08 | Pfizer Hospital Products Group, Inc. | Acetabulum sizer and drill guide |
| EP0337901A1 (en) * | 1988-04-01 | 1989-10-18 | Christian Broc | Mounting device especially for the tibial and/or femoral part of a two-piece knee joint prosthesis |
| US5030219A (en) * | 1990-01-22 | 1991-07-09 | Boehringer Mannheim Corporation | Glenoid component installation tools |
| US5176684A (en) * | 1992-02-20 | 1993-01-05 | Dow Corning Wright | Modular shaping and trial reduction guide for implantation of posterior-stabilized femoral prosthesis and method of using same |
-
1993
- 1993-06-01 FR FR9306797A patent/FR2705885B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0140642A2 (en) * | 1983-10-19 | 1985-05-08 | Pfizer Hospital Products Group, Inc. | Acetabulum sizer and drill guide |
| EP0337901A1 (en) * | 1988-04-01 | 1989-10-18 | Christian Broc | Mounting device especially for the tibial and/or femoral part of a two-piece knee joint prosthesis |
| US5030219A (en) * | 1990-01-22 | 1991-07-09 | Boehringer Mannheim Corporation | Glenoid component installation tools |
| US5176684A (en) * | 1992-02-20 | 1993-01-05 | Dow Corning Wright | Modular shaping and trial reduction guide for implantation of posterior-stabilized femoral prosthesis and method of using same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995017860A1 (en) * | 1993-12-30 | 1995-07-06 | Plus Endoprothetik Ag | Knee endoprosthesis |
| US5755802A (en) * | 1993-12-30 | 1998-05-26 | Bruno E. Gerber | Knee-joint endoprosthesis |
| US6214051B1 (en) * | 1997-01-17 | 2001-04-10 | Ceramtec Ag Innovative Ceramic Engineering | Fixation of a ceramic structural member by way of gliding in a femoral part |
| WO2000061065A1 (en) | 1999-04-14 | 2000-10-19 | Dussere Louis Marie | Ergonomic teat |
| US6692503B2 (en) * | 1999-10-13 | 2004-02-17 | Sdgi Holdings, Inc | System and method for securing a plate to the spinal column |
| WO2003013373A1 (en) * | 2001-08-10 | 2003-02-20 | Depuy International Limited | Guide for locating femur resection plane |
| WO2014096904A1 (en) * | 2012-12-19 | 2014-06-26 | Industrias Medicas Sampedro S.A.S. | Plate-centering device for orthopedic surgery |
| GB2633841A (en) * | 2023-09-25 | 2025-03-26 | Osstec Ltd | Trialling system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2705885B1 (en) | 1995-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20060228 |