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US 5,397,330 AGranted
Posterior cruciate ligament retractor for use in performing knee surgery
OwnerE. Michael Mikhailinventor
Life of this patent
Estimating the term…
Abstract
A method of performing knee surgery and retractors and a femoral distractor for use in performing such method are provided, said retractors including a PCL tibial retractor, lateral patellar retractor, collateral ligament retractor, posterior cruciate ligament retractor and unicompartmental retractor designed to cooperate with one another in performing such method.
Claims3
A posterior cruciate ligament retractor for use in performing knee surgery comprising:
- (a) a handle extending along a longitudinal axis;
- (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path, said integral support having spaced apart edges, said spaced apart integral support edges being parallel and each lying in a plane substantially parallel to said longitudinal axis;
- and
- (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having a pair of edges, each converging inwardly toward one another directly from one of said integral support edges, said pair of edges tapering in a straight line path toward a vertical plane lying on said longitudinal axis and terminating in a point free end.
1 more element
A posterior cruciate ligament retractor comprising:
- (a) a handle extending along a longitudinal axis;
- (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved Oath and then a straight line path, the breadth of said support being 0.43 inch +/-0.02 inch, and;
- (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4.degree. +/-1.degree. to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
A posterior cruciate ligament retractor comprising:
- (a) a handle extending along a longitudinal axis;
- (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path;
- said integral support is disposed at an angle of 22.degree. +/-1.5.degree. from the adjacent handle portion and having a breadth of 0.43 inch +/-0.02 inch, and;
- (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4.degree. +/-1.degree. to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
1 more element
Dependencies are inferred from the claim text.