Free-standing biodegradable patch
First Claim
1. A device comprising:
- a film comprising solid fibrinogen and a plasticizer that comprises about 5 to about 30 weight percent polyethylene glycol,wherein the film is free-standing without a support structure and the solid fibrinogen is within the free-standing film.
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Accused Products
Abstract
Methods and apparatus for a free-standing biodegradable patch suitable for medical applications, especially intravascular, minimally-invasive and intraoperative surgical applications are provided, wherein the patch comprises a free-standing film or device having a mixture of a solid fibrinogen component and a solid thrombin component that, when exposed to an aqueous environment, undergoes polymerization to form fibrin. In alternative embodiments the patch may comprise a solid fibrinogen component, with or without an inorganic calcium salt component. The patch may take a non-adherent form during delivery to a target location within a vessel or tissue, and thereafter may be activated to adhere to vessel wall or tissue, and may include a number of additives, including materials to improve the mechanical properties of the patch, or one or more therapeutic or contrast agents.
75 Citations
28 Claims
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1. A device comprising:
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a film comprising solid fibrinogen and a plasticizer that comprises about 5 to about 30 weight percent polyethylene glycol, wherein the film is free-standing without a support structure and the solid fibrinogen is within the free-standing film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28)
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21. A device comprising:
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a film comprising solid fibrinogen, wherein the film is free-standing without a support structure and the solid fibrinogen is within the free-standing film, and wherein the film further comprises a contrast agent that renders the device radiopaque.
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Specification