FR2789571A1 - Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part - Google Patents

Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part Download PDF

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Publication number
FR2789571A1
FR2789571A1 FR9901879A FR9901879A FR2789571A1 FR 2789571 A1 FR2789571 A1 FR 2789571A1 FR 9901879 A FR9901879 A FR 9901879A FR 9901879 A FR9901879 A FR 9901879A FR 2789571 A1 FR2789571 A1 FR 2789571A1
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FR
France
Prior art keywords
part
endoprosthesis
knee
comprises
femur
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.)
Withdrawn
Application number
FR9901879A
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French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEX ANNE MARIE
Original Assignee
BEX ANNE MARIE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEX ANNE MARIE filed Critical BEX ANNE MARIE
Priority to FR9901879A priority Critical patent/FR2789571A1/en
Publication of FR2789571A1 publication Critical patent/FR2789571A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • 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
    • A61F2/3859Femoral components
    • 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
    • A61F2/38Joints for elbows or knees
    • A61F2/3859Femoral components
    • A61F2002/3863Condyles fitted on an anchored base

Abstract

The prosthesis comprises of a fixed part (1) that is cemented in place. The fixed piece comprises two horizontal cylinder whose bore openings () are located on the front face. Two notched regions (EC2PF, EC1PF) are located on the lower face.

Description

-- 1-- - 1--

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

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

lation du genou. tion of the knee.

Il existe plusieurs types d'e.ndoprohèses de genou: - l'endoprothèse du gencu bicompartimentale et tri compartimentale utilisées lorsque Le chirurgien conserve les ligaments. There are several types of e.ndoprohèses knee - the endoprosthesis gencu bicompartmental and tri-compartmental used when the surgeon keeps ligaments. - l'endoprothèse totale lu genou utilisée cuand les - total knee endoprosthesis used cuand read the

ligaments ne sont pas conserv4s. ligaments are not conserv4s.

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 bicompartimentale à une endoprothèse tricompartimentale de genou et ou à une endoprothèse totale de genou sans que le chirurgien soit obligé de desceller la par The present invention aims to allow to pass from a bicompartmental stent to stent Tricompartimental knee or total knee endoprosthesis without the surgeon is forced to unseal the by

tie fémorale. femoral tie.

- 2 - Cet objet est résolu, selon la présente invention, par le fait que la paroie fémorale se compose de: - une partie interne (1), fixe, q: s'emboite sur le fémur. - 2 - This object is solved according to the present invention, in that the femoral paroie consists of: - an inner part (1), fixed, q: snaps over the femur. Elle sera cimentée on non. It will be cemented is not. Elle présente deux cy lindres horizontaux (ClPf,C2Pf) à la partie postérieure dont la partie interne est percée et taraudée ou lisse cylindrique It has two horizontal lindres cy (CLPF, C2Pf) in the posterior part, the inner part is drilled and tapped or smooth cylindrical

ou troncônique. or frustoconical.

- une partie externe mobile (2) qui va s'encas- - a movable outer part (2) which will encas-

trer sur la partie interne fixe. trate on the fixed inner part. Elle présente s lit un trou PRlPm en regard des cylindres ce qui permet de fixer au moyen It presents s bed PRlPm a hole facing the cylinder which allows to fix by means

id'une vis ia partie mobile sur la partie fixe ou un -enon cy- id'une screw ia movable part on the fixed part or a cyclic -enon

lindrique (Telm, Te2Pm) ou tronconique qui va fixer la partie mobile à la partie fixe. lindrique (telm, Te2Pm) or frustoconical that will secure the movable part to the fixed part. Cette partie mobile est la partie fé morale d'une endoprothèse de genou soit bicompartimen-ale soit This moving part is the moral fe part of a knee endoprosthesis is bicompartimen ale is

tricompartimentale soit totale. Tricompartimental is complete.

- la partie externe de l'endoprothèse de genou bi compartimentale comporte en bas et de chaque coté de l'échancrure EclPf et Ec2Pf un cylindre horizontal ( ClPm, C2Pm) percé et usiné en forme tronconique. - the outer portion of the endoprosthesis of knee bi-compartmental comprises bottom and each side of the notch and EclPf Ec2Pf a horizontal cylinder (MPLC, C2Pm) drilled and machined frustoconical shape. Ces deux cylindres recevront chacune une pièce tronconique reliée par une barre These two cylinders each receive a frustoconical part connected by a bar

(3). (3). Ainsi la partie externe sans la barre est une endoprothè- Thus the outer portion without the bar is a endoprothè-

thèse bicompartimentale qui devient avec la barre une endopro- bicompartmental thesis that becomes the bar with a endopro-

thèse tricompartimentale. Tricompartimental thesis.

- la partie externe de l'endoprothèse totale de genou peut être mise en place soit en première inten tion soit après pose d'une endoprothèse bi ou tricompartimenta le; - the outer part of the total endoprosthetic knee can be implemented either inten tion or after first placing a stent or bi tricompartimenta the; dans ce cas, l'emplacement de la quille est préparé par le chirurgien. in this case the location of the keel is prepared by the surgeon. Les avantages de la prothèse réside en particulier dans le fait que le chirurgien peut passer de l'endoprothèse bi com The advantages of the prosthesis lies particularly in the fact that the surgeon can move from bi com stent

partimentale à la tri compartimentale à la totale sans descel- partimentale to tri compartmental to the total without descel-

ler la partie fémorale. l the femur part.

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

- fig.l: partie fixe en vue frontale. - fig.l: fixed part in front view.

- fig.2: partie fixe en vue latérale. - fig.2: fixed portion in side view.

- fig.3: partie mobile bi compartimentale en vue latérale avec - fig.3: bi compartmental movable part in side view

le concept tenon. tenon concept.

-3- - fig.4: partie mobile bi compartimentale en vue latérale avec -3 - fig.4: bi compartmental movable part in side view

le concept vis. the concept screws.

- fig.5: pièce pour tri compartimentale en vue ventrale. - fig.5: item for sorting compartmental in ventral view.

- fig.6: pièce pour tri compartimentale en vue supérieure. - fig.6: item for sorting compartmental in top view.

- fig.7: partie mobile bi compartimenta!e vue frontale. - fig.7: mobile e bi compartmentalization part frontal view!.

- fig.8: partie mobile tri compartimentage vue frontale. - fig.8: movable part sorting compartment front view.

- 4 - - 4 -

Claims (1)

  1. REVENDICATIONS
    - l - endcproGhése pour l'articulation du genou dont la partie fémoraLe orése,._e une partie interne fixe - 1 - avec ans la - l - endcproGhése for the knee joint with the femur part orése, e ._ a fixed inner part - 1 - with the years
    partie verticale deux cylindres C1Pf et C2Pf, troués vers l'a- vertical portion and two C1Pf C2Pf cylinders holed a-
    vant en forme de cylindre ou de tronc de cône ou de cylindre efore cylindrical or truncated cone or cylinder
    soit taraudés TrClPf ainsi que en bas et à l'intérieur deux é- TrClPf be tapped and at the bottom and within two E-
    chancrures EclPf et Ec2Pf, ainsi qu'une partie externe mobile (2). chancrures EclPf and Ec2Pf, and a movable outer part (2). - 2 endcprothèse pour i'articulation du genou selon la reven dication 1 caractérisée en ce que la partie externe, mobile, de la partie fémorale de l'endoprothèse bi compartimentale de genou recouvre la partie fixe et comporte deux trous Trl'Pm et Tr2Pm qui correspondent aux trous TrC1Pf et TrC2Pf, deux vis, vissées dans les trous taraudés TrlPf et Tr2Pf tenant les - 2 endcprothèse for the articulation of the knee according to reven dication 1, characterized in that the outer part, mobile, of the femoral portion of the knee bi-compartmental joint endoprosthesis covers the fixed part and comprises two holes which Trl'Pm and Tr2Pm correspond to TrC1Pf and TrC2Pf holes, two screws screwed into the threaded holes TrlPf and holding Tr2Pf
    deux parties. two parts.
    - 3 - endoprothèse pour l'articulation de genou selon la reven dication 1 caractérisée en ce que la partie externe, mobile, de la partie fémorale de l'endoprothèse bicompartimentale de genou recouvre la partie fixe et comporte deux tenons lelPm et - 3 - endoprosthesis for the knee joint according to reven dication 1, characterized in that the outer part, mobile, of the femoral part of the endoprosthesis bicompartmental knee covers the fixed part and comprises two tenons and lelPm
    Te2Pm qui correspondent aux trous TrC1Pf et TrC2Pf. Te2Pm corresponding to TrC1Pf and TrC2Pf holes.
    - 4 - endoprothèse pour l'articulation de genou selon la reven dication 1 caractérisée par le fait que la partie mobile de - 4 - endoprosthesis for the knee joint according to reven dication 1, characterized in that the movable part of
    la partie fémorale comporte en bas et à l'intérieur des par- the femur part comprises bottom and inside the par-
    ties verticales un cylindre C1Pm et C2Pm troué en avant et usiné en forme de cylindre ou troncônique. vertical ties C1Pm a cylinder hole and C2Pm forward and machined cylindrical or frustoconical. Ces deux trous rece vront chacun un tenon cylindrique ou tronconique qu'une barre Both rece vront each hole a cylindrical or frustoconical pin a rod
    transversale (3) réunira, transformant ainsi la partie fémora- cross (3) meet, turning the part fémora-
    le bicompartimentale en tricompartimentale sans que le chirur the bicompartmental in Tricompartimental without the chirur
    gien soit obligé de désceller la partie fémorale en place. gian is forced to unseal the femoral part in place.
FR9901879A 1999-02-11 1999-02-11 Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part Withdrawn FR2789571A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9901879A FR2789571A1 (en) 1999-02-11 1999-02-11 Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9901879A FR2789571A1 (en) 1999-02-11 1999-02-11 Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part

Publications (1)

Publication Number Publication Date
FR2789571A1 true FR2789571A1 (en) 2000-08-18

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FR9901879A Withdrawn FR2789571A1 (en) 1999-02-11 1999-02-11 Endoprosthesis for knee replacement procedures, comprises a fixed piece mounted to the femur enabling replacement of joint without removal of the fixed part

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2851156A1 (en) * 2003-02-13 2004-08-20 Patrick Hechard Femoral prosthesis for knee prosthesis, has intermediary part between mounting base and knee cap, and sliding face allowing displacement by sliding of part on support face and centering of cap relative to femur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838891A (en) * 1984-11-28 1989-06-13 Branemark Per Ingvar Joint prothesis
FR2634373A1 (en) * 1988-07-25 1990-01-26 Lebeguec Pierre Total knee prosthesis
US5405398A (en) * 1993-08-30 1995-04-11 Intermedics Orthopedics, Inc. Prosthetic knee with posterior stabilized femoral component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838891A (en) * 1984-11-28 1989-06-13 Branemark Per Ingvar Joint prothesis
FR2634373A1 (en) * 1988-07-25 1990-01-26 Lebeguec Pierre Total knee prosthesis
US5405398A (en) * 1993-08-30 1995-04-11 Intermedics Orthopedics, Inc. Prosthetic knee with posterior stabilized femoral component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2851156A1 (en) * 2003-02-13 2004-08-20 Patrick Hechard Femoral prosthesis for knee prosthesis, has intermediary part between mounting base and knee cap, and sliding face allowing displacement by sliding of part on support face and centering of cap relative to femur
WO2004078074A1 (en) * 2003-02-13 2004-09-16 Patrick Hechard Knee prosthesis

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