Composite bioabsorbable materials and surgical articles made therefrom
AssigneeUnited States Surgical Corporation
InventorsCheng-Kung Liu, Ying Jiang, Mark S. Roby, Steven L. Bennett, Richard P. Stevenson, Jeffrey P. Pietrangeli
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Abstract
The present invention relates to composite materials having a core portion formed from a first bioabsorbable material and at least one shell portion of a second bioabsorbable material joined to the core portion. The first and second bioabsorbable materials have different rates of bioabsorption. In a preferred embodiment, the core portion is coextruded with the shell portion to form a composite filament or sheet. The materials of the present invention may be used as sutures or formed into medical devices or surgical articles for implantation within a living organism.
Claims15
A bioabsorbable filament implantable within a living organism comprising:
- a core portion formed from a first bioabsorbable material;
- a shell portion joined to said core portion formed from a second bioabsorbable material;
- wherein said first bioabsorbable material has a greater rate of bioabsorption than said second bioabsorbable material, and
- wherein said bioabsorbable filament is formed by coextruding said core portion and said shell portion.
A bioabsorbable filament implantable within a living organism comprising:
- a core portion formed from a first bioabsorbable material;
- a shell portion joined to said core portion formed from a second bioabsorbable material, the second bioabsorbable material having a rate of bioabsorption different from the rate of bioabsorption of the first bioabsorbable material;
- wherein said bioabsorbable filament is formed by coextruding said core portion and said shell portion.
Dependencies are inferred from the claim text.