BIFURCATED TRACHEO-BRONCHIAL PROSTHESES

• US 3,818,515 A
• Filed: 11/13/1972
• Issued: 06/25/1974
• Est. Priority Date: 11/13/1972
• Status: Expired due to Term

• Current Assignee: William E. Neville
• Original Assignee: William E. Neville
• Inventors: Neville, William E.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Frinks, Ronald L.
• Application Number:
  US05/305,661
• Time in Patent Office: 589 Days
• Field of Search: 3/1,DIG.1 128/334R,334C,1R,348,351
• US Class Current: 623/9
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2002/046 Tracheae

Abstract

A prosthetic device for implantation into the tracheobronchial tree in replacement of a damaged or diseased trachea and one or both bronchi is disclosed. The device comprises a bifurcated tube having a cuff or cuffs on either distal end of the arms which are to be inserted into and anastomosed with the bronchi. A central or trunk tube is connected to these lateral tubes and may also have a cuff like arrangement distally positioned thereon. The central tube is to be inserted into the trachea or what is remaining of the endothoracic trachea. The bifurcated tube structure is comprised of a molded polysiloxane-epoxide substrate having positioned depression therein within which depressions a porous fabric like mesh is partially recessed so as to completely circumvent the exterior of the tube. These cuffs are of a polyester fabric and form one or more circumferential sleeves about the tube. The particular structural arrangement gives a smooth interior surface to the implant, little tissue reactivity and excellent flex to the device coupled with an outer surface which is conducive to excellent fibroblastic ingrowth of the surrounding tissue as well as permitting '"'"''"'"''"'"''"'"'blooding'"'"''"'"''"'"''"'"' of the connection between the natural body tissue and the implant.

Claims

1. A prosthetic device for implantation into humans in replacement of a portion of the tracheo-bronchial tree which comprises:

a. a bifurcated tube having superimposed thereon at least one cuff or sleeve of a fabric which circumvents the same, b. said circumferential cuff member partially recessed in a circumferential depression in the outer surface of the wall of the tube located at the distal portion of the same, c. said cuff member comprised of a seamless circular sleeve of porous fabric having a hollow center portion thereof and adhesively attached to the walls of the circumferential depression in the outer surface of the tube.

2. A prosthetic device according to claim 1 wherein the tube has superimposed thereon a circumferential cuff member on the distal segment thereof.

3. A prosthetic device according to claim 1 wherein the tube is a bifurcated tube having two arms extending therefrom, each arm having a circumferential cuff member on the distal segment thereof.

4. A prosthetic device according to claim 1 wherein the outside diameter of the tube is smaller in a short segment of the tube distal to the location of the cuff members thereon.

5. A prosthetic device according to claim 3 wherein the outside diameter of the tube is smaller in a short segment of the tube distal to the location of the cuff members thereon.