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US 7,179,259 B1Granted
Instrument assembly for lateral implant
AssigneeBiomet Manufacturing, LLC
InventorPhilip M Gibbs
Life of this patent
Estimating the term…
Abstract
An instrument assembly for inserting a lateral fastener into a lateral bore of a stem body implanted into a bone. The instrument assembly includes an outrigger having an alignment tube extending laterally from the stem body, wherein the outrigger can be coupled with the stem body such that the alignment tube extends coaxially with the lateral bore.
Claims16
An assembly comprising:
- a modular hip implant assembly for a hip joint including at least one stem body implantable into a femoral bone, the stem body having a longitudinal axis and a lateral bore at an angle to the longitudinal axis at a proximal end of the stem body;
- at least one lateral fastener for insertion into the lateral bore;
- an implantable support plate configured for attachment to a lateral surface of the femur with the at least one lateral fastener:
- an instrument assembly for fastening the lateral fastener into the lateral bore of the stem body, the instrument assembly comprising:
- an outrigger including a leg and a C-shaped arm defining a plane at an angle relative to the leg, the C-shaped arm having first, second and third portions, the first portion extending at an angle from a proximal end of the leg, the second portion extending between the first and third portions, the first portion substantially parallel to the third portion, the third portion couplable to the a proximal end of the stem body, such that the lea is substantially parallel to the longitudinal axis of the stem body, and the first, second and third portions define a lateral opening that is substantially parallel to the longitudinal axis of the stem body and configured to allow the abductor muscles of the femoral bone to pass therethrough between the implantable support plate and the femoral bone;
- and
- an alignment tube extending from the leg such that the alignment tube is substantially coaxial with the lateral bore of the stem body.
4 more elements
An assembly comprising:
- a modular hip implant assembly for a hip joint including at least one stem body implantable into a femoral bone, the stem body having a longitudinal axis and a lateral bore at an angle to the longitudinal axis at a proximal end of the stem body;
- at least one lateral fastener for insertion into the lateral bore;
- an implantable support plate configured for attachment to a lateral surface of the femur with the at least one lateral fastener;
- an instrument assembly for fastening the lateral fastener into the lateral bore of the stem body, the instrument assembly comprising:
- an outrigger including a leg and a C-shaped arm defining a plane at an angle relative to the leg, the C-shaped arm having first, second and third portions, the first portion extending from a proximal end of the leg substantially perpendicular to the leg, the second portion extending between the first and third portions and at an angle relative to the first portion, the third portion couplable to the a proximal end of the stem body, such that the leg is substantially parallel to the longitudinal axis of the stem body and the third portion is substantially perpendicular to the leg, and the first, second and third portions define a lateral opening that is substantially parallel to the longitudinal axis of the stem body and configured to allow the abductor muscles of the femoral bone to pass therethrough between the implantable support plate and the femoral bone;
- and
- an alignment tube extending from the leg, such that the alignment tube is substantially coaxial with the lateral bore of the stem body.
4 more elements
An assembly comprising:
- a modular hip implant assembly for a hip joint including at least one stem body implantable into a femoral bone, the stem body having a longitudinal axis and a lateral bore at an angle to the longitudinal axis at a proximal end of the stem body;
- at least one lateral fastener insertable into the lateral bore of the stem body;
- an implantable support plate having an opening and configured for attachment to a lateral surface of the femur with the at least one lateral fastener, the at least one fastener passing through the opening, the implantable support plate including anchors for soft tissue attachment;
- an instrument assembly for fastening the lateral fastener into the lateral bore of the stem body, the instrument assembly comprising:
- an outrigger including a leg and a substantially planar arm at an angle relative to the leg, the planar arm having first, second and third portions defining a C-shape, the first portion extending from a proximal end of the leg substantially perpendicular to the leg, the second portion extending between the first and third portions and at an angle relative to the first portion, the third portion substantially perpendicular to the leg and couplable to the a proximal end of the stem body, such that the leg is substantially parallel to the longitudinal axis of the stem body, and the first, second and third portions define an opening that is substantially parallel to the longitudinal axis of the stem body and laterally spaced away from stem body, the opening configured to allow the abductor muscles of the femoral bone to pass therethrough between the implantable support plate and the femoral bone;
- and
- an alignment tube extending from the leg, such that the alignment tube is substantially coaxial with the lateral bore of the stem body.
4 more elements
Dependencies are inferred from the claim text.