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.

Date of Patent:
Sep. 22, 2026

Filed:

Nov. 14, 2019
Applicant:

Wake Forest University Health Sciences, Winston-Salem, NC (US);

Inventor:

Khalil Bitar, Winston-Salem, NC (US);

Assignee:

Wake Forest University Health Sciences, Winston-Salem, NC (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L 27/36 (2006.01); A61B 10/04 (2006.01); C12N 5/071 (2010.01);
U.S. Cl.
CPC ...
A61L 27/367 (2013.01); A61L 27/3629 (2013.01); A61L 27/3687 (2013.01); A61L 27/3691 (2013.01); C12N 5/0697 (2013.01); A61B 10/04 (2013.01); C12N 2502/088 (2013.01); C12N 2502/1347 (2013.01); C12N 2533/54 (2013.01);
Abstract

The present disclosure provides methods of bioengineering sphincters having autologous smooth muscle cells isolated from human internal anal sphincter and autologous enteric neurospheres (neural progenitor cells) isolated from human small intestine (jejunum). The isolated neural progenitor cells and smooth muscle cells are co-cultured using dual layered hydrogels and allowed to form circular, intrinsically innervated internal anal sphincter constructs. Such innervated internal anal sphincter constructs, bioengineered internal anal sphincter constructs are useful as additive implants in the treatment of fecal incontinence.


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