TUBULAR SHEET AND STRIP FORM PROSTHESES ON A BASIS OF BIOLOGICAL TISSUE

• US 3,562,820 A
• Filed: 08/21/1967
• Issued: 02/16/1971
• Est. Priority Date: 08/22/1966
• Status: Expired due to Term

• Current Assignee: Braun Bernhard
• Original Assignee: Braun Bernhard
• Inventors: BRAUN BERNHARD
• Application Number:
  US04/661,900
• Time in Patent Office: 1,275 Days
• US Class Current: 623/23.64
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2310/00365 Proteins; Polypeptides; Degradation products thereof
• CPC Class Codes: A61L 27/24 Collagen
• CPC Class Codes: A61L 27/3629 Intestinal tissue, e.g. small intestinal submucosa
• CPC Class Codes: Y10T 428/1348 Cellular material derived from plant or animal source [e.g., wood, cotton, wool, leather, etc.]

Abstract

There are disclosed tubular, sheet and strip form prostheses on a basis of biological tissue for use in the replacement, repair and strengthening of various living organs such as the vasculature, esophagus, bronchus, intesting, ureter, liver, kidney, etc. and a process for making and using the same. The prosthesis itself comprises a unitary structure of alternating layers of natural tissue and collagen fibers. The same is manufactured by applying a strip, sheet or tube of biological material onto a substantially rigid support, coatings the exposed surface with a binder paste, as for example, a collagen fibre paste, or bringing about the swelling of the exposed surface, thereafter applying a second layer of natural material and repeating the procedure until the desired wall thickness is obtained. The multi-layer prosthesis is then dried and removed from underlying support.

Claims