Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Including valve
Patent
1998-05-28
2000-04-25
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Including valve
623 12, 623 144, 623 113, 600 36, A61F 204, A61F 206
Patent
active
060539437
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates generally to an intraluminal graft having an integral structural support which supports the intraluminal graft in an open condition and a method for making the inventive intraluminal graft. The integral structural support enhances dimensional stability of the graft, provides radial strength against radial constriction or collapse, yet permits radial expansion of the graft and facilitates intraluminal anchoring of the graft into the tissue defining an anatomical passageway. The integrally structurally supported endoluminal graft of the present invention includes a structural support integrally coupled to the graft and which has a plurality of strain relief segments. The strain relief segments, upon cumulative longitudinal deformation, delimit an upper limit of longitudinal and/or radial expansion of the graft itself.
The current trend is toward minimally invasive surgical procedures. Laparoscopic, endoscopic and percutaneous catheterization procedures have permitted surgeons to treat a broad spectrum of diseases and disorders while reducing body trauma, using local anesthesia, and decreasing patient pain and recovery time. Endovascular procedures such as percutaneous transluminal angioplasty (PTA) to treat vascular occlusive diseases, abdominal aortic aneurysm exclusions or peripheral aneurysmal exclusions are examples of minimally invasive interventional cardiovascular applications which have gained popularity. The present invention may be used with other endoscopic or percutaneous catheterization procedures for treating occlusive disorders in other anatomical passageways, including, but not limited to biliary ducts, ureters, urethras, fallopian tubes, etc. or to create shunts to restore blood flow, such as a transjugular intrahepatic portosystemic shunt (TIPS).
The present invention relates to various embodiments of an intraluminal graft, preferably made from longitudinally expanded polytetrafluoroethylene (ePTFE), which incorporate a structural member within or adjacent to the graft wall. In accordance with the preferred embodiment of the invention, a wire or ribbon member, fabricated of either metal or plastic, is incorporated either directly into the wall of the graft or into beading bonded to the graft. The structural member includes strain relief sections which permit both radial and longitudinal expansion of the graft. The structural member may further include tissue anchors comprising barbs or barb-forming sections distinct from the strain relief sections, or the strain relief sections may, themselves, act as the tissue anchors to anchor the graft to the anatomical passageway tissue.
The object of the present invention is to provide an structurally supported intraluminal graft useful as an endovascular graft which can be radially expanded in vivo, similar to endovascular stents described in U.S. Pat. No. 4,733,665 issued to Palmaz and U.S. Pat. No. 4,580,568 issued to Gianturco, which are well known in the art and which are currently being employed in many endovascular applications. The purpose of the present invention is to provide means which function to provide radial reinforcement for the graft, permitting radial expansion thereof, and which permits affixing the graft within an anatomical passageway such as a blood vessel.
Several strengthened or reinforced, yet radially compliant graft structures have been described in the art. For example, the Pinchuk patent, U.S. Pat. No. 4,629,458, discloses a tubular graft with an internal support layer. A silicone mandrel is coated with a fluid polymer and then helically wrapped with a monofilament polymer. The helical wrap may, alternatively, be positioned within the wall of the graft.
The Wall patent, U.S. Pat. No. 5,192,307 describes a radially expandable compliant prosthesis having metal springs embedded into the wall of the prosthesis. The prosthesis comprises a stent including a wall with a hook and hook means. The stent comprises a network of stainless steel or woven plastic covered by a pl
REFERENCES:
patent: Re31618 (1984-07-01), Mano et al.
patent: 3105492 (1963-10-01), Jeckel
patent: 3304557 (1967-02-01), Polansky
patent: 4580568 (1986-04-01), Gianturco
patent: 4588461 (1986-05-01), Braun
patent: 4604762 (1986-08-01), Robinson
patent: 4629458 (1986-12-01), Pinchuk
patent: 4733665 (1988-03-01), Palmaz
patent: 4747849 (1988-05-01), Galtier
patent: 4767418 (1988-08-01), Deininger et al.
patent: 4776337 (1988-10-01), Palmaz
patent: 4816339 (1989-03-01), Tu et al.
patent: 4850999 (1989-07-01), Planck
patent: 4857069 (1989-08-01), Kira
patent: 4969896 (1990-11-01), Shors
patent: 5061275 (1991-10-01), Wallsten et al.
patent: 5084065 (1992-01-01), Weldon et al.
patent: 5102417 (1992-04-01), Palmaz
patent: 5116360 (1992-05-01), Pinchuk et al.
patent: 5116365 (1992-05-01), Hillstead
patent: 5167614 (1992-12-01), Tessmann et al.
patent: 5192307 (1993-03-01), Wall
patent: 5195984 (1993-03-01), Schatz
patent: 5219361 (1993-06-01), von Recum et al.
patent: 5236446 (1993-08-01), Dumon
patent: 5282823 (1994-02-01), Schwartz et al.
patent: 5282824 (1994-02-01), Gianturco
patent: 5282847 (1994-02-01), Trescony et al.
patent: 5282860 (1994-02-01), Matsuno et al.
patent: 5334201 (1994-08-01), Cowan
patent: 5556426 (1996-09-01), Popadiuk et al.
patent: 5607478 (1997-03-01), Lentz et al.
patent: 5609624 (1997-03-01), Kalis
patent: 5749880 (1998-05-01), Banas et al.
patent: 5851232 (1998-12-01), Lois
patent: 5871536 (1999-02-01), Lazarus
patent: 5871537 (1999-02-01), Holman et al.
patent: 5873906 (1999-02-01), Lau et al.
Banas Christopher E.
Edwin Tarun J.
Impra, Inc.
Jackson Suzette
Willse David H.
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