Global Patent Index - EP 1056335 A1

EP 1056335 A1 2000-12-06 - METHOD OF PROCESSING AND PRESERVING COLLAGEN BASED TISSUES

Title (en)

METHOD OF PROCESSING AND PRESERVING COLLAGEN BASED TISSUES

Title (de)

VERFAHREN ZUR BEHANDLUNG UND KONSERVIERUNG VON AUF KOLLAGEN BASIERTEN GEWEBETEILEN

Title (fr)

PROCEDE PERMETTANT DE TRAITER ET DE CONSERVER DES TISSUS A BASE DE COLLAGENE

Publication

EP 1056335 A1 (EN)

Application

EP 99908285 A

Priority

  • US 9903667 W
  • US 7547298 P

Abstract (en)

[origin: WO9941981A1] A process for the preserving collagen-based tissues involves procuring the collagen-based tissue; treating the tissue in a detergent solution; treating the tissue in an enzyme solution; treating the tissue so as to prevent or inhibit the molecular crosslinking of processed tissues via the Maillard reaction and the subsequent formation of advanced glycosylation end products; treating the tissue so as to prevent or inhibit the molecular crosslinking of processed tissues via reactive oxidative species of molecules; treating the tissue so as to prevent or inhibit the molecular crosslinking of processed tissues via the formation and propagation of molecular free radicals; treating the tissue in a cryopreservation solution; and cryopreserving the tissue. The process may be utlized to preserve several differing types of collagen based tissue including heart valve, vascular grafts including veins and arteries, umbilical vessels, nerve and nervous system tissue, dura, dermis and other similar collagen based tissues.

IPC 1-7 (main, further and additional classification)

A01N 1/00

IPC 8 full level (invention and additional information)

A61L 27/00 (2006.01); A01N 1/00 (2006.01); A01N 1/02 (2006.01)

CPC (invention and additional information)

A01N 1/02 (2013.01); A01N 1/0221 (2013.01); A61L 27/3687 (2013.01)

Citation (search report)

See references of WO 9941981A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9941981 A1 19990826; AU 2775399 A 19990906; AU 752457 B2 20020919; CA 2320887 A1 19990826; EP 1056335 A1 20001206; JP 2002503678 A 20020205

INPADOC legal status


2004-05-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031028

2002-08-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020711

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000919

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE