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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9351820 B1

PDFFull Text
Date of Patent:
May. 31, 2016

Filed:

Aug. 26, 2012

Device for repair surgery of cylindrical organs, particularly ruptured tendons

Applicant:

Johanna Buschmann, Zürich, CH;

Inventor:

Johanna Buschmann, Zürich, CH;

Assignee:

University of Zurich, , CH;

Attorney:

George Pappas

Primary Examiner:

Thomas J Sweet

Assistant Examiner:

Daniel Bissing

Int. Cl.
CPC ...
A61F 2/00 (2006.01); A61B 17/30 (2006.01); A61B 17/11 (2006.01); A61L 27/18 (2006.01); A61L 27/50 (2006.01); A61L 27/56 (2006.01); A61L 27/58 (2006.01); A61F 2/08 (2006.01); A61L 31/16 (2006.01);
U.S. Cl.
CPC ...
A61F 2/0063 (2013.01); A61B 17/1146 (2013.01); A61B 17/30 (2013.01); A61F 2/0811 (2013.01); A61L 27/18 (2013.01); A61L 27/50 (2013.01); A61L 27/56 (2013.01); A61L 27/58 (2013.01); A61L 31/16 (2013.01); A61F 2002/0072 (2013.01); A61L 2430/10 (2013.01);
Abstract

A device for repair surgery of cylindrical organs, particularly ruptured tendons, is configured as a tubular sheath (T) made of a biocompatible and biodegradable polymer. The tubular sheath comprises an elastic fiber mesh formed by electrospinning of said polymer and has an inner wall surface and an outer wall surface substantially parallel thereto. One of said wall surfaces is comparatively rough (W) and the other one of said wall surfaces is comparatively smooth (W), with the tubular sheath having a Young elasticity modulus of about 2 to about 5 MPa and an elongation at break of about 50 to about 1,000%. Preferably, the polymer is a biodegradable polyester urethane block copolymer with poly-hydroxy-butyrate as a hard 10 segment and ε-caprolactone as a soft segment.

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