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 9295762 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 29, 2016

Filed:

Mar. 07, 2008
Applicants:

Hanne Everland, Bagsvaerd, DK;

Jacob Vange, Helsingoer, DK;

Christian Clausen, Fredensborg, DK;

Lene Feldskov Nielsen, Copenhagen K, DK;

Inventors:

Hanne Everland, Bagsvaerd, DK;

Jacob Vange, Helsingoer, DK;

Christian Clausen, Fredensborg, DK;

Lene Feldskov Nielsen, Copenhagen K, DK;

Assignee:

Coloplast A/S, Humlebaek, DK;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L 27/56 (2006.01); A61L 27/58 (2006.01); A61P 19/04 (2006.01); A61K 47/34 (2006.01); A61L 27/48 (2006.01);
U.S. Cl.
CPC ...
A61L 27/56 (2013.01); A61L 27/48 (2013.01); A61L 27/58 (2013.01); A61L 2430/06 (2013.01);
Abstract

The present application discloses that incorporation of dermatan sulfate and/or HA in composite scaffolds of certain polymers gives rise to a chondrogenic effect on chondrocytes resulting in formation of cartilage that resembles the natural ECM. This effect with dermatan sulfate as the primary additive has not previously been seen. The composites are formed by incorporation of dermatan sulfate finely dispersed particles optionally nanoparticles or as molecular dissolutions in a polymer matrix with no bonding between the DS and the matrix, providing the DS to the chondrocytes in an accessible non-crosslinked form.


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