US 5,490,855 A · Device to stabilze a cutting means for the fitting of a prosthesis in bone surgery

Device to stabilze a cutting means for the fitting of a prosthesis in bone surgery

AssigneesDeveloppement d'Implants Orthopediques et Medicaux, Protek Synthes

InventorsJean-Pierre Bouraly, Jurg Aebi, Philippe Beaufils, Michel de Lestang, Jean-Gilles Gaffuri, Herve Hourlier, Jean-Jacques Lallement, Philippe Legroux, Jean-Paul Levai, Gerald Pondaven, Pierre Schuster, Christian Vergnat

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Abstract

A device for the axial stabilization of a cutting means, used to make at least one cut at one end of a bone with a view to the fitting of a prosthesis in bone surgery. It includes an axial centering rod that is introduced partially into the intramedullar canal of said bone and is designed to receive said one cutting means. The centering rod is provided with an anchoring thread so as to form a anchor bolt that is axially stabilized in a direction parallel to the axis of the rod. A clamping device is mounted to the rod and axially clamps the cutting means inst the bone.

Claims3

Dependent claims

An axially stabilized apparatus used for cutting the end of a bone in preparation of fitting a prosthesis during bone surgery, comprising:

a removable centering rod for partial insertion into an intramedullar canal of the bone;
a first threaded portion formed only on an intermediate section of the rod for threaded anchoring engagement with a proximal end of the bone canal, that axially stabilizes the rod;
a cutting block slidably mounted to an axial external intermediate extension of the centering rod, at a point outwardly adjacent a proximal end of the bone;
and
threaded fastener means mounted on an outward axial end portion of the centering rod, having a second threaded portion for exerting a clamping force, axial with the rod, to clamp the block against the bone.

2 more elements

Dependencies are inferred from the claim text.