FR2787012A1 - Knee joint endoprosthesis has two cylinders projecting from underside of tibial component for partial or complete joint replacement - Google Patents

Knee joint endoprosthesis has two cylinders projecting from underside of tibial component for partial or complete joint replacement Download PDF

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Publication number
FR2787012A1
FR2787012A1 FR9815853A FR9815853A FR2787012A1 FR 2787012 A1 FR2787012 A1 FR 2787012A1 FR 9815853 A FR9815853 A FR 9815853A FR 9815853 A FR9815853 A FR 9815853A FR 2787012 A1 FR2787012 A1 FR 2787012A1
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Prior art keywords
part
hole
cylinder
endoprosthesis
c2
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FR9815853A
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French (fr)
Inventor
Robert Doucet
Christian Buscayret
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BEX ANNE MARIE
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BEX ANNE MARIE
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Priority to FR9815853A priority Critical patent/FR2787012A1/en
Publication of FR2787012A1 publication Critical patent/FR2787012A1/en
Application status is Withdrawn legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3868Joints for elbows or knees with sliding tibial bearing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3836Special connection between upper and lower leg, e.g. constrained
    • A61F2/384Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement
    • A61F2/385Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement also provided with condylar bearing surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3886Joints for elbows or knees for stabilising knees against anterior or lateral dislocations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332Conically- or frustoconically-shaped protrusion and recess
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    • A61F2/00Filters 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
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30364Rotation about the common longitudinal axis
    • A61F2002/30365Rotation about the common longitudinal axis with additional means for limiting said rotation
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30492Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking pin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604Special structural features of bone or joint prostheses not otherwise provided for modular
    • A61F2002/30616Sets comprising a plurality of prosthetic parts of different sizes or orientations
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30785Plurality of holes parallel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00Filters 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
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    • A61F2/30771Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
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    • A61F2002/30797Blind bores, e.g. of circular cross-section internally-threaded
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    • A61F2002/30878Special external or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
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Abstract

The endoprosthesis has two cylinders (C1, C2) projecting from the underside of its tibial component. The first has a hole (TrC1) machined to a truncated conical shape at the bottom and threaded at the top to receive a shank, and the second has a hole (TrC2) machined to a truncated conical or cylindrical shape. The upper surface of the component has a kidney-shaped recess (GPtTi), five vertical holes and one oblique hole linked to the second cylinder which receives part of the tibial plate in a three-component prosthesis.

Description

Titre: endoprothèse pour l'articulation du genou. Title: endoprosthesis for the knee joint.

La présente invention concerne une endoprothèse pour l'articu- The invention relates to a stent for articu-

lation du genou. tion of the knee.

Il existe deux grands types d'endoprothèses de genou: - l'endoprothèse du genou "bi" et "tricompartimenta- There are two main types of stents knee - the knee endoprosthesis "bi" and "tricompartimenta-

le " utilisée lorsque le chirurgien conserve les ligaments. the "used when the surgeon keeps ligaments.

- l'endoprothèse totale du genou utilisée quand les - total knee endoprosthesis used when

ligaments ne sont pas conservés. ligaments are preserved.

La première se compose de trois parties principales: - la partie fémorale présente deux coques formant les condyles incurvés de manière convexe avec, The first consists of three main parts: - the femur part comprises two shells forming the curved convex condyles with,

dans certains cas, à sa partie supérieure une tige. in some cases, at its upper part a stem.

- le plateau tibial en polyéthylène - the tibial plateau polyethylene

sur lequel glissent les condyles fémoraux. on which slide the femoral condyles.

- la partie formant tibia sur laquel- - the tibial component on laquel-

le est fixé le plateau tibial présente à son extrémité inféri- the tibial tray is fixed has at its end inféri-

eure une tige. eure rod.

La seconde se compose de trois parties principales et deux secondaires: parties principales: - la partie formant fémur ou insert fémoral présente deux coques formant les condyles incurvés de The second consists of three main and two secondary parts: main parts: - the portion femur or femoral insert has two shells forming the curved condyles of

manière convexe et, à sa partie supérieure, une tige. convexly and at its upper part, a stem.

- le plateau tibial en poléthylène - la partie formant tibia ou insert - the tibial tray poléthylène - the tibial component or insert

tibial qui présente à sa partie inférieure une quille. tibial which at its lower part a keel.

Le trou de l'axe horizontale de la partie fémorale reçoit The hole of the horizontal axis of the femur part receives

la pièce cylindrique verticale qui sert de liaison entre par- the vertical cylindrical part which serves as connection between par-

tie fémorale et partie tibiale. tie femoral and tibial part.

- parties secondaires: - Secondary parts:

- le plateau rotulien. - the patellar plate.

- les cales de rattrapage. - remedial wedges.

La présente invention a pour objet de permettre de passer d'une endoprothèse tricompartimentale de genou à une endoprothèse totale de genou sans que le chirurgien soit obli The present invention aims to allow a transition from a tricompartmental knee endoprosthesis for total knee endoprosthesis without the surgeon is obli

gé de changer la partie tibiale. ge to change the tibial part.

- 2 - Cet objet est résolu, selon la présente invention, par le fait que: - 2 - This object is solved according to the present invention, in that:

- la partie tibiale présente à sa partie infé- - the tibia part has at its lower part

rieure deux cylindres Cl et C2.: - Cl: ce cylindre est percé à sa par- tie inférieure et usiné sur une partie de sa hauteur en forme de tronc de cône puis taraudé ou de tronc de cône seulement; higher two cylinders Cl and C2 .: - Cl: This cylinder is perforated at its lower part and machined on a part of its height in the shape of truncated cone then threaded or truncated cone only;

dans ce cas la partie tibiale est percée en regard de ce der- in this case the tibia part is pierced opposite this Der-

nier pour permettre le passage d'une vis qui se visse dans l'extrémité supérieure de la quille. deny to allow passage of a screw which is screwed into the upper end of the keel. Dans ce trou sera vissée In this hole is screwed

une quille dont la longueur aura été choisie par le médecin.. a keel whose length has been selected by the doctor ..

- C2: ce cylindre, à sa partie supé- - C2: this cylinder, at its part SUPREME

rieure, a un trou usiné en forme de tronc de cône ou bien en forme de cylindre à la partie supérieure et ensuite taraudé, situé postérieurement par rapport à l'axe de la quille et soit centré par rapport aux bords latéraux de la partie tibiale higher, has a hole machined in the shape of a truncated cone or cylinder-shaped at the top and then threaded, located posteriorly relative to the axis of the keel and is centered relative to the side edges of the tibia part

soit excentré. or eccentric. Un trou cylindrique oblique donne dans ce trou. An inclined cylindrical hole opens into the hole.

- le plateau tibial en polyéthylène de l'endo- - the tibial plateau polyethylene endo-

prothèse tricompartimentale présente à sa partie inférieure une surépaisseur qui va s'encastrer dans la gorge en forme de haricot située à la partie supérieure de la partie tibiale; tricompartmental prosthesis has at its lower portion a thickness which will fit into the kidney-shaped groove in the upper part of the tibia part; cette partie peut avoir une largeur plus faible que la gorge pour permettre une rotation. this section may have a smaller width than the groove to allow rotation. Il présente également un te non tronconique ou cylindrique, renforcé ou non par une pièce métallique, qui rentre dans le trou de la partie tibiale. It also has a non-cylindrical or frustoconical you, reinforced or not by a metal part, which enters the hole in the tibia part. Dans In

la partie ventrale, le plateau tibial présente un trou qui re- the ventral portion, the tibial tray has a hole which re-

çoit une vis qui se fixe sur la partie tibiale; ceives a screw which is fixed on the tibia part; il peut avoir he can have

une forme de haricot de façon à permettre une légère rotati- a bean shape so as to allow a slight rotati-

on du plateau tibial. on the tibial plateau.

- le pivot vertical de l'endoprothèse totale se compose de: - une partie supérieure qui pénètre dans le trou situé dans la noix de la partie fémorale, et dont le sommet est troncônique de façon à faciliter l'insertion du - the vertical pivot of the total stent consists of: - an upper portion which penetrates into the hole in the nut of the femur part, and whose top is tapered so as to facilitate insertion of the

pivot dans la noix. pivot in the nuts.

- une partie inférieure soit troncô- - a lower part or troncô-

nique soit cylindrique au début puis taraudée. nique is cylindrical and threaded to the top. Il existe une -3- There is a -3-

gorge périphérique en regard du trou oblique de la partie ti- peripheral groove opposite the oblique hole of the part ti-

biale. Biale. Cette gorge reçoit l'extremité d'une clavette qui empê- This groove receives the extremity of a key that prevented

che l'extrusion du pivot. che extruding the pivot.

Les avantages de la présente invention réside en particu- The advantages of the present invention is espe-

lier dans le fait que le chirurgien peut passer de l'endopro- thèse tricompartimentale à l'endoprothèse totale de genou sans bind in the fact that the surgeon can move from Tricompartimental endoprosthesis total knee endoprosthesis without

avoir à déposer la partie tibiale. having to file the tibial part.

Ci-après, un exemple de réalisation de la présente invention est expliqué de manière plus détaillée. Hereinafter, an exemplary embodiment of the present invention is explained in more detail. Parmi les figures: Among the figures:

- la figure 1 montre la partie tibiale vue de côté. - Figure 1 shows the tibia part side view.

- la figure 2 montre la partie tibiale en vue dorsale. - Figure 2 shows the tibia part in dorsal view.

- la figure 3 montre la partie tibiale en vue ventrale. - Figure 3 shows the tibia part in ventral view.

- la figure 4 montre le pivot de l'endoprothèse totale avec la partie inférieure, qui rentre dans TrC2, cylindrique - Figure 4 shows the pivot of the total stent with the lower part, which enters Trc2, cylindrical

et taraudée. and threaded.

- la figure 5 montre une vue transversale de l'endoprothèse - Figure 5 shows a sectional view of the stent

totale vue de côté. total side view.

- la figure 6 montre le plateau tibial de l'endoprothèse tota- - Figure 6 shows the tibial plate of the stent tota-

le vu latéralement. the saw laterally.

- la figure 7 montre le plateau tibial de l'endoprothèse tota- - Figure 7 shows the tibial plate of the stent tota-

le vu ventralement. the ventral seen.

- la figure 8 montre le plateau tibial de l'endoprothèse tri- - Figure 8 shows the tibial plate of the stent tri-

compartimentale vu ventralement. compartmental seen ventrally.

- la figure 9 montre l'endoprothèse totale.vue dorsalement. - Figure 9 shows the stent totale.vue dorsally.

- la figure 10 montre l'endoprothèse totale vue ventralement. - Figure 10 shows the total stent ventral view.

- la figure 11 montre l'endoprothèse tricompartimentale en vue ventrale. - Figure 11 shows the stent Tricompartimental ventral view. - la figure 12 montre la partie tibiale vue inférieure - la figure 13 montre la partie tibiale vue supérieure - Figure 12 shows the tibial part bottom view - Figure 13 shows the top view tibia part

Selon ces figures, il est décrit une endoprothèse de ge- According to these figures, there is disclosed a stent ge-

nou dont la partie tibiale - fig. nou which the tibia part - Fig. 1 - présente à sa partie in- 1 - has at its portion in-

férieure deux cylindres - Cl - et - C2 -. férieure two cylinders - Cl - and - C2 -. Le cylindre Cl est troué - TrC1 - à sa partie inférieure et usiné en forme de tronc de cône et ensuite taraudé afin de recevoir une quille de longueur variable.Le cylindre C2 est troué - TrC2 - à sa partie supérieure et usiné soit en forme de tronc de cône ou de cylindre dans sa partie supérieure et taraudé soit en forme de tronc de cône; Cl cylinder has holes - TRC1 - at its lower part and machined into a cone shape and then threaded truncated to receive a variable.Le cylinder C2 keel length is punctured - Trc2 - in its upper part is machined and shaped truncated cone or cylinder in its upper part and is threaded in the form of truncated cone; ces deux cylindres pourront être réunis en - 4 - une seule pièce de forme elliptique. these two cylinders can be combined in - 4 - a single piece of elliptical shape. La partie tibiale présen te à sa partie supérieure une gorge - GPtTi - en forme de hari The tibial part presen you at its top a gorge - GPtTi - shaped hari

cot et cinq trous verticaux Trl, Tr2, Tr3, Tr4, Tr5 et un trou Oblique Tcl - qui aboutit dans le trou du cylindre - C2 -. cost and five vertical holes Trl, Tr2, Tr3, Tr4, Tr5 and a hole Oblique Tcl - which results in the cylinder bore - C2 -.

Cette partie tibiale sera reliée à la partie fémorale soit d'une endoprothèse tricompartimentale soit d'une endoprothèse totale. This tibial part will be connected to the femoral part is a Tricompartimental stent or a total endoprosthesis. Par ailleurs, le trou - TrC2 - du cylindre - C2 - déca lé du coté dorsal par rapport au cylindre - Cl - et décalé la téralement reçoit ou le pivot - T -, liaison entre la partie tibiale et la partie fémorale de l'endoprothèse totale, ou la partie - Ttr - du plateau en polyéthylène, liaison entre la partie tibiale et la partie fémorale de l'endoprothèse tricom partimentale.La liaison entre la partie tibiale et la partie Furthermore, the hole - Trc2 - cylinder - C2 - deca the back side relative to the cylinder - Cl - and offset the téralement or receives the pin - T - connection between the tibial part and the femoral part of the endoprosthesis total, or part - Ttr - the polyethylene plate, connection between the tibial part and the femoral part of the endoprosthesis TRICOM partimentale.La connection between the tibial part and the

fémorale de l'endoprothèse totale se fait au moyen du pivot - of the total femoral endoprosthesis is by means of the pivot -

T -, mobile, dont la partie inférieure est introduite dans le trou - TrC2 - du cylindre - C2 -. T - mobile, whose lower part is inserted into the hole - Trc2 - cylinder - C2 -. Cette partie est soit tron cônique soit tronconique ou cylindrique à sa partie supérieure et puis taraudée. This portion is either tron ​​conical or frustoconical or cylindrical in its upper part and then threaded. Une gorge - Gcl circulaire reçoit l'extré mité d'une clavette introduite dans le trou Tcl -. A groove - Gcl circular receives Extremists moth a key inserted into the hole Tcl -. La partie supérieure cylindrique rentre dans le trou de la noix fémorale The cylindrical upper part enters the hole of the femoral nuts

Pour faciliter la manoeuvre l'extrémité est tronconique. To facilitate maneuvering end is tapered.

Le plateau en polyéthylène, liaison entre la partie tibia le et la partie fémorale de l'endoprothèse tricompartimentale présente à sa partie inférieure une partie cylindrique ou tron cônique - TTrC2 - renforcée ou non par une pièce métallique The polyethylene plate, connection between the tibia part and the femoral portion of the tricompartmental stent has at its lower part a cylindrical portion or conical tron ​​- TTrC2 - reinforced or not by a metal part

qui se positionne dans le trou - TrC2 -. which is positioned in the hole - Trc2 -. La partie - TGPtTi - Part - TGPtTi -

va s'insérer dans la gorge - GPtTi - de la partie tibiale. will fit into the groove - GPtTi - of the tibial part. Cet te partie est soit de même dimension soit de dimensioninférieu re de façon à permettre une rotation de quelques degrés. This part of you is either the same size or to re dimensioninférieu to allow a rotation of a few degrees. Il présente dans sa partie ventrale un trou dans lequel va s'insé rer une vis de blocage. It has in its ventral portion a hole into which will inse rer a locking screw. Dans le cas o le plateau est prévu In the event that the tray is provided

pour permettre une rotation le trou a une forme d'arc de cer- to allow rotation of the hole has an arc shape of cer-

cle. key.

Claims (2)

    REVENDICATIONS
  1. -1- Endoprothèse pour l'articulation du genou caractérisée en ce que la partie tibiale - fig.1 - présente à sa partie infé rieure deux cylindres C1 - et - C2 -. -1- An endoprosthesis for the knee joint, characterized in that the tibia part - fig.1 - infe has at its higher part two cylinders C1 - and - C2 -. Le cylindre Cl est troué - TrCI - à sa partie inférieure et usiné en forme de tronc de cône et ensuite taraudé afin de recevoir une quille de longueur variable. Cl cylinder has holes - TRCI - at its lower part and machined shape of a truncated cone and then tapped to receive a pin of variable length. Le cylindre C2 est troué - TrC2 - à sa partie supérieure et usiné soit en forme de tronc de cône ou de cylindre dans sa partie supérieure et tauraudé soit en for me de tronc de cône. The cylinder C2 has holes - Trc2 - in its upper part is machined and shaped truncated cone or cylinder in its upper part and tauraudé either for me frustum. La partie tibiale présente à sa partie su périeure une gorge - GPtTi - en forme de haricot et cinq trous The tibia part has at its portion su périeure a groove - GPtTi - kidney-shaped holes and five
    verticaux Trl, Tr2 Tr3, Tr4 Tr5 et un trou oblique - Tcl - vertical Trl, Tr2 Tr3, Tr4 and Tr5 an oblique hole - Tcl -
    qui aboutit dans le trou du cylindre -C2-. resulting in the hole of -C2- cylinder.
  2. -2- Endoprothèse pour l'articulation de genou selon la reven- -2- An endoprosthesis for the knee joint according to reven-
    dication 1 caractérisée en ce que le trou - TrC2 - du cylindre - C2 décalé du coté dorsal par rapport au cylindre - Cl - et décalé latéralement reçoit le pivot - T -, liaison entre la partie tibiale et la partie fémorale de l'endoprothèse totale -3 - Endoprothèse pour l'articulation de genou selon la reven dication 1 caractérisée en ce que le trou - TrC2 - du cylindre dication 1, characterized in that the hole - Trc2 - cylinder - shifted C2 dorsal side relative to the cylinder - Cl - and offset laterally receives the pivot - T - connection between the tibial part and the femoral part of the total stent -3 - endoprosthesis for the knee joint according to reven dication 1, characterized in that the hole - Trc2 - the cylinder
    C2 décalé du côté dorsal par rapport au cylindre - Cl - et dé- C2 offset on the dorsal side with respect to the cylinder - Cl - and de-
    calé latéralement reçoit la partie - Ttr - du plateau en polyé thylène, liaison entre la partie tibiale et la partie fémorale wedged laterally receives the portion - Ttr - the tray polye thylène, connection between the tibial part and the femoral part
    de l'endoprothèse tricompartimentale. Tricompartimental the stent.
    -4- Endoprothèse pour l'articulation de genou selon la revendi -4- endoprosthesis for the knee joint according to revendi
    cation 1 caractérisée en ce que la liaison entre la partie ti- cation 1 characterized in that the connection between the part ti-
    biale et la partie fémorale de l'endoprothèse totale se fait au moyen d'un pivot - T - mobile dont la partie inféri Biale and the femoral part of the total stent is effected by means of a pivot - T - mobile part whose inferi
    eure est introduite dans le trou - TrC2 - du cylindre - C2 -. eure is inserted into the hole - Trc2 - cylinder - C2 -.
    Cette partie est soit tronconique, soit tronconique ou cylin drique à sa partie supérieure et puis taraudée.Une gorge - Gcl - circulaire reçoit l'extrémité d'une clavette introduite dans le trou - Tcl -. This portion is either frusto-conical or frusto-conical or cylin drique at its upper part and then taraudée.Une groove - Gcl - circular receives the end of a key inserted into the hole - Tcl -. La partie supérieure cylindridrique rentre dans le trou de la noix fémorale. The upper cylindridrique enters the hole of the femoral nuts. Pour faciliter la manoeuvre To facilitate operation
    l'extrémité est troncônique. the end of which is frustoconical.
    - 5- Endoprothèse pour l'articulation de genou selon la reven- - 5- endoprosthesis for the knee joint according to reven-
    dication 1 caractérisée en ce que le plateau en polyéthylène - 6 liaison entre la partie tibiale et la partie fémorale de dication 1, characterized in that the polyethylene plate - 6 linkage between the tibial part and the femoral part of
    l'endoprothèse tricompartimentale présente à sa partie infé- Tricompartimental the stent has at its lower portion
    rieure une partie cylindrique ou tronconique - TTrC2 - renfor- higher a cylindrical or frustoconical portion - TTrC2 - Reinfor-
    cée ou non par une pièce métallique - qui se positionne dans le trou TrC2 -. Cée or not by a metal piece - which is positioned in the hole Trc2 -. La partie - TGPtTi - s'insére dans la gorge - GPtTi - de la partie tibiale. Part - TGPtTi - inserts himself in the throat - GPtTi - of the tibial part. Cette partie est soit de même dimension soit de dimension inférieure de façon à permettre This portion is either the same size or of smaller size so as to allow
    une rotation de quelques degrés. a rotation of a few degrees. Il présente dans sa par- It has in its par-
    tie ventrale un trou dans lequel s'insére une vis de blocage. ventral tie a hole in which inserts is a locking screw.
FR9815853A 1998-12-11 1998-12-11 Knee joint endoprosthesis has two cylinders projecting from underside of tibial component for partial or complete joint replacement Withdrawn FR2787012A1 (en)

Priority Applications (1)

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FR9815853A FR2787012A1 (en) 1998-12-11 1998-12-11 Knee joint endoprosthesis has two cylinders projecting from underside of tibial component for partial or complete joint replacement

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Application Number Priority Date Filing Date Title
FR9815853A FR2787012A1 (en) 1998-12-11 1998-12-11 Knee joint endoprosthesis has two cylinders projecting from underside of tibial component for partial or complete joint replacement

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US8206451B2 (en) 2008-06-30 2012-06-26 Depuy Products, Inc. Posterior stabilized orthopaedic prosthesis
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US8915965B2 (en) 2009-05-07 2014-12-23 Depuy (Ireland) Anterior stabilized knee implant
US9119723B2 (en) 2008-06-30 2015-09-01 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis assembly
US9168145B2 (en) 2008-06-30 2015-10-27 Depuy (Ireland) Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US9492280B2 (en) 2000-11-28 2016-11-15 Medidea, Llc Multiple-cam, posterior-stabilized knee prosthesis
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US10188521B2 (en) 2000-11-28 2019-01-29 Medidea, Llc Multiple-cam, posterior-stabilized knee prosthesis
FR2838330A1 (en) * 2002-04-12 2003-10-17 Medical Solution Knee joint prosthesis tibial assembly has base designed to receive fixed or moving plate
JP2009530020A (en) * 2006-03-21 2009-08-27 リチャード ディー コミステック Moment-induced total joint prosthesis
AU2006340364B2 (en) * 2006-03-21 2011-04-28 Komistek, Richard D Moment induced total arthroplasty prosthetic
US9254197B2 (en) 2006-03-21 2016-02-09 Depuy (Ireland) Moment induced total arthroplasty prosthetic
US8636807B2 (en) 2006-03-21 2014-01-28 Depuy (Ireland) Moment induced total arthroplasty prosthetic
WO2007108804A1 (en) * 2006-03-21 2007-09-27 Komistek Richard D Moment induced total arthroplasty prosthetic
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US8784496B2 (en) 2008-06-30 2014-07-22 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
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US8192498B2 (en) 2008-06-30 2012-06-05 Depuy Products, Inc. Posterior cructiate-retaining orthopaedic knee prosthesis having controlled condylar curvature
US9119723B2 (en) 2008-06-30 2015-09-01 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis assembly
US9168145B2 (en) 2008-06-30 2015-10-27 Depuy (Ireland) Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature
US9204968B2 (en) 2008-06-30 2015-12-08 Depuy (Ireland) Posterior stabilized orthopaedic prosthesis
US9220601B2 (en) 2008-06-30 2015-12-29 Depuy (Ireland) Orthopaedic femoral component having controlled condylar curvature
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US9326864B2 (en) 2008-06-30 2016-05-03 Depuy (Ireland) Orthopaedic knee prosthesis having controlled condylar curvature
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US8202323B2 (en) 2008-07-16 2012-06-19 Depuy Products, Inc. Knee prostheses with enhanced kinematics
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