Self-sealing implantable vascular graft

• US 5,192,310 A
• Filed: 09/16/1991
• Issued: 03/09/1993
• Est. Priority Date: 09/16/1991
• Status: Expired due to Term

• Current Assignee: Atrium Medical Corporation (Getinge AB)
• Original Assignee: Atrium Medical Corporation (Getinge AB)
• Inventors: Martakos, Paul, Karwoski, Theodore, Herweck, Steve A.
• Primary Examiner(s): Isabella, David
• Assistant Examiner(s): BRITTINGHAM, DEBRA
• Application Number:
  US07/760,718
• Time in Patent Office: 540 Days
• Field of Search: 623/1, 623/11, 623/12
• US Class Current: 623/1.27
• 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 2/06 Blood vessels
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body
• CPC Class Codes: A61L 27/16 obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 27/507 for artificial blood vessels apparatus for applying cells on a blood vessel prosthesis A61F2/062
• CPC Class Codes: A61L 27/56 Porous materials, e.g. foams or sponges
• CPC Class Codes: C08L 27/18 Homopolymers or copolymers or tetrafluoroethene

Abstract

An implantable self-sealing vascular graft device comprises an implantable tubular body defining a primary lumen and at least one secondary lumen, the lumina sharing a common side wall. The primary lumen is adapted for attachment to the vascular system of the patient to accommodate blood flow therethrough. A non-biodegradable elastomeric material disposed in the secondary lumen permits repeated self-sealing penetrations of a cannula through the elastomeric material and into the primary lumen. A method for repeatedly accessing a patient'"'"'s vascular system by implanting in the patient the disclosed structure and accessing a patient'"'"'s vascular system by passing a cannula through the secondary lumen, the common side wall, and into the primary lumen is also disclosed.

Claims

1. A self-sealing implantable prosthetic device for connection to a fluid flow pathway of a patient, the device comprising

a. an implantable body of unitary construction adapted for attachment to said fluid flow pathway, said body defining a primary lumen for accommodating fluid flow therethrough and a secondary lumen sharing a common side wall with said primary lumen, each of the lumina being bounded by a single, continuous surface provided by the body;

and

b. a non-biodegradable self-sealing elastomeric material disposed in said secondary lumen.

2. The device of claim 1, wherein said primary lumen is longer than said secondary lumen.

3. The device of claim 1, wherein said body consists of a material selected from the group consisting of:

polyester fibers, polyurethane, polysiloxane polymers, and polytetrafluoroethylene.

4. The device of claim 3, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.

5. The device of claim 1, wherein said body consists of a copolymeric material.

6. A self-sealing implantable vascular graft for connection to a blood vessel of a patient, the graft comprising

a. an implantable body of unitary construction adapted for attachment to a blood vessel of a patient, said body defining a primary lumen for accommodating blood flow therethrough and a secondary lumen sharing a common side wall with said primary lumen, each of the lumina being bounded by a single continuous surface provided by the body, and

b. a non-biodegradable self-sealing elastomeric material disposed in said secondary lumen.

7. The graft of claim 6, wherein said primary lumen is longer than said secondary lumen.

8. The graft of claim 6, wherein said body consists of a material selected from the group consisting of:

polyester fibers, polyurethane, polysiloxane polymers, and polytetrafluoroethylene.

9. The device of claim 6, wherein said polytetrafluoroethylene is selected from the group consisting of, expanded polytetrafluoroethylene, stretched polytetrafluoroethylene, and stretched and expanded polytetrafluoroethylene.

10. The device of claim 6, wherein said body consists of a copolymeric material.

11. A method for accessing a patient'"'"'s vascular system comprising the steps of:

a. providing a vascular graft formed of an implantable body of unitary construction adapted for attachment to a blood vessel of the patient, the body defining a primary lumen for accommodating fluid flow therethrough and a secondary lumen sharing a common side wall with the primary lumen, each of the lumina being bounded by a single, continuous surface provided by the body, the graft further including a non-biodegradable self-sealing elastomeric material disposed in the secondary lumen;

b. connecting the vascular graft to a blood vessel of the patient; and

c. accessing the patient'"'"'s vascular system by passing a cannula through said secondary lumen, said common side wall, and into said primary lumen.