EP0380451A2
Expired / Lapsed
EP
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Apparatus for resecting femurs and applying knee articulation prostheses
Assignee: G CREMASCOLI SpA
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Filing: 1990-01-08
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Granted: —
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Expires: 2010-01-08
Abstract
Abstract The present invention relates to an apparatus for properly resecting femurs and applying knee articulation prostheses, which apparatus comprises a main body (1) including a fixed body (2) and a movable body (3) which can be coupled to one another. With the main body (1) there are removably associated a bottom bracket (23) and a locating body (32), adapted to define guides for carrying out front and rear femur resections. A top body (50) is moreover provided, which can be removably coupled to the main body (1) in order to carry out the transversal resection and the tapering resection of the distal portion of the femur bone.
Inventors
- 👤 Franco G. Cremascoli S.P.A. Ghisellini
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/154; A61B17/155
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
An apparatus for properly resecting femurs and applying knee articulation prostheses, characterized in that said apparatus comprises a main body, including a fixed body and a movable body coupled to one another, with said main body there being removably associated a bottom bracket and a locating body, to define guides for carrying out front and rear femur resection operations, there being moreover provided a top body which can be removably coupled to said main body to carry out the transverse resection operation of the distal portion of the femur bone.
Claim 2
Independent Claim
90 words
An apparatus for properly resecting femurs and applying knee articulation prostheses, characterized in that said apparatus comprises a main body, including a fixed body and a movable body coupled to one another, with said main body there being removably associated a bottom bracket and a locating body, to define guides for carrying out front and rear femur resection operations, there being moreover provided a top body which can be removably coupled to said main body to carry out the transverse resection operation of the distal portion of the femur bone.
Claim 3
Dependent Claim
43 words
An apparatus according to claim 1, characterized in that said fixed body is provided, on a middle portion thereof, with a substantially cylindrical hollow having opening windows provided on the main surfaces of said fixed body which has a substantially flat parallelepipedal configuration.
Claim 4
Independent Claim
47 words
An apparatus according to the preceding claims, characterized in that in said hollow there is housed a cylindrical bush including a longitudinal rib for preventing said bush from rotating in said hollow, said cylindrical bush further comprising a pair of cross holes having a set slant arrangement.
Claim 5
Independent Claim
40 words
An apparatus according to one or more of the preceding claims, characterized in that said fixed body is provided, at a middle portion thereof, with a cut therein can be removably slidingly engaged a leg extending from said movable body.
Claim 6
Independent Claim
58 words
An apparatus according to one or more of the preceding claims, characterized in that said fixed body is provided, at the front portion thereof, with cut-outs arranged at elongated slots formed on said leg, said fixed body being moreover provided with a threaded seat therein engages a screw for locking said leg with respect to said fixed body.
Claim 7
Independent Claim
38 words
An apparatus according to one or more of the preceding claims, characterized in that said fixed body further comprises throughgoing holes therein there are engaged pins to be inserted into one of the holes formed on said leg.
Claim 8
Independent Claim
38 words
An apparatus according to one or more of the preceding claims, characterized in that the holes of said legs are referenced by reference marks which can be arranged at tapering and registering holes formed on said fixed body.
Claim 9
Independent Claim
36 words
An apparatus according to one or more of the preceding claims, characterized in that said movable body is provided, at the bottom thereof, with a seat to be engaged by a jaw for affixing said bracket.
Claim 10
Independent Claim
91 words
An apparatus according to one or more of the preceding claims, characterized in that said fixed body is provided, at the top thereof, with an abutment surface thereon can abut a base plate of said locating body, said base plate being provided with centering pins adapted to be engaged in corresponding seats, there being moreover provided threaded seats to be engaged by locking screw means, and said locating body being provided with a right angle bent lug for properly arranging said locating body with respect to the neck of the femur.
Claim 11
Independent Claim
47 words
An apparatus according to one or more of the preceding claims, characterized in that said locating body defines, in cooperation with said abutment surface, a top guide slot for the front femur resection operations,whereas the movable body defines top guide slots for the rear femur resection operation.
Claim 12
Independent Claim
57 words
An apparatus according to one or more of the preceding claims, characterized in that said top body is provided with centering pins which can be engaged in the centering seats of the abutment surface, said top body being provided with a cross slot for the transverse resection operation and a slant slot for the tapering resection operation.
Claim 13
Independent Claim
60 words
An apparatus according to one or more of the preceding claims, characterized in that said apparatus comprises a femur prosthesis adapted to be coupled on the head of a femur bone, to be resected at the front and rear thereof, and arranged for the transverse and tapering resection, said prosthesis being provided with a fixing pin including locking annular ridges.
References Cited (Backward Citations)
No citation records indexed.
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