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US 7,622,068 B2Granted
Tissue repair device and fabrication thereof
AssigneeEthicon, Inc.
InventorsZhigang Li, Kevin Cooper, Raymond S. Shissias, Qiang Zhang
Life of this patent
Estimating the term…
Abstract
A device for use in tissue repair, a method of using the device in a surgical procedure and a method of making the device. The device is an assembly of a anchor with a cord passed through it, and a stopper to prevent the cord from passing back through the anchor.
Claims12
A method of making a, tissue repair device having a polymeric stopper member molded around an end of a flexible cord, comprising the steps of:
- providing a flexible cord having a first end and a second end, the first and second ends being flexible;
- providing a rod member;
- placing the rod member through the first end of the cord such that at least a section of the rod member is contained within the end of the cord;
- disposing the first flexible end of the cord with the rod member in a die cavity;
- providing a prefabricated polymer tube having an inner passage;
- disposing the prefabricated polymer tube in the die cavity so that it substantially surrounds the first end of the cord and the rod member;
- disposing a plunger in the die cavity adjacent to the polymer tube;
- heating the die cavity to a temperature sufficient to effectively completely melt the polymer tube, thereby producing melted polymer;
- moving the plunger axially in the die cavity in the direction of the first end of the cord and the rod, thereby forming a stopper member from the melted polymer about the first end of the cord and the rod member;
- and,
- and cooling the die cavity,
- wherein the cord, the rod and the stopper member are formed from biocompatible polymers selected from the group consisting of aliphatic polyesters, polyorthoesters, polyanhydrides, polycarbonates, polyurethanes, polyamides and polyalkylene oxides.
9 more elements
Dependencies are inferred from the claim text.