Thin-wall polytetrafluoroethylene tube

Details Thin-wall polytetrafluoroethylene tube Thin-wall polytetrafluoroethylene tube

1994-05-24

2000-02-22

Woodward, Michael P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 358, 428 361, 428421, B29D 2200, B32B 904

Patent

active

060277793

ABSTRACT:
A thin-wall PTFE (polytetrafluoroethylene) tube in the form of a tube of porous expanded PTFE film wherein the porous PTFE film has a microstructure containing a multiplicity of fibrils oriented substantially parallel to each other. The tube has a wall thickness of less than about 0.25 mm and is made from at least one first layer and at least one second layer of porous PTFE film, wherein the fibrils of the first and second layers are oriented substantially perpendicular to each other. Preferably the fibrils of the at least one first layer are oriented substantially parallel to the longitudinal axis of the tube and the fibrils of the at least one second layer of porous PTFE film are oriented substantially circumferential to the tube. The first and second layers may be inner and outer layers respectively, or alternatively their relationship may be reversed. Alternatively, either of the first and second film layers may be replaced with alternative reinforcing components such as a braid or at least one reinforcing rib. The reinforcing rib is preferably in the form of a helically-wrapped metal wire located between the first and second layers.

REFERENCES:
patent: 3657744 (1972-04-01), Ersek
patent: 3868956 (1975-03-01), Alfidi et al.
patent: 3953566 (1976-04-01), Gore
patent: 4055696 (1977-10-01), Kamada et al.
patent: 4130904 (1978-12-01), Whalen
patent: 4140126 (1979-02-01), Chodury
patent: 4190909 (1980-03-01), Ablaza
patent: 4250138 (1981-02-01), Okita
patent: 4313231 (1982-02-01), Koyamada
patent: 4347204 (1982-08-01), Takagi et al.
patent: 4478898 (1984-10-01), Kato
patent: 4512228 (1985-04-01), Balko et al.
patent: 4553545 (1985-11-01), Maass et al.
patent: 4562596 (1986-01-01), Kornberg
patent: 4577631 (1986-03-01), Kreamer
patent: 4598011 (1986-07-01), Bowman
patent: 4655771 (1987-04-01), Wallsten
patent: 4681110 (1987-07-01), Wiktor
patent: 4713070 (1987-12-01), Mano
patent: 4776337 (1988-10-01), Palmaz
patent: 4787899 (1988-11-01), Lazarus
patent: 4791966 (1988-12-01), Eilentropp
patent: 4820298 (1989-04-01), Leveen et al.
patent: 4822361 (1989-04-01), Okita et al.
patent: 4877030 (1989-10-01), Beck et al.
patent: 4877661 (1989-10-01), House et al.
patent: 4878906 (1989-11-01), Lindemann et al.
patent: 4925710 (1990-05-01), Buck et al.
patent: 4954126 (1990-09-01), Wallsten
patent: 5024671 (1991-06-01), Tu et al.
patent: 5078726 (1992-01-01), Kreamer
patent: 5107852 (1992-04-01), Davidson et al.
patent: 5122154 (1992-06-01), Rhodes
patent: 5151105 (1992-09-01), Kwan-Gett
patent: 5156620 (1992-10-01), Pigott
patent: 5211658 (1993-05-01), Clouse
patent: 5225131 (1993-07-01), Tamaru
patent: 5236447 (1993-08-01), Kubo et al.
patent: 5254107 (1993-10-01), Soltesz
patent: 5288552 (1994-02-01), Hollenbaugh et al.
Balko A et al., Transfemoral Placement of Intraluminal Polyurethane Prosthesis for Abdominaol Aortic Aneurysm. J of Surg Research 1986; 40:305-309.
Chuter TAM et al., Transfemoral Endovascular Aortic Graft Placement. J of Vas Surg 1993; 18(2):185-197.
Cragg AH, Drake MD, Percutaneous Femoropopliteal Graft Placement. Radiology 1993; 187(3):643-648.
George PJM et al., Covered expandable metal stent for recurrent tracheal obstruction. Lancet 1990; 335:582-584.
Kato M et al., Development of a chronic endothelialized transcatheter implantable intra-aortic graft. ASAIO Jour 1993; M518-521.
Lawrence DD et al., Percutaneous Endovascular Graft: Experimental Evaluation. Radiolory 1987; 163(2):357-360.
Mirich D et al., Percutaneously Placed Endovascular Grafts for Aortic Aneurysms: Feasibility Study. Radiology 1989; 170(3):1033-1037.
Parodi JC et al., Transfemoral Intraluminal Graft Implantation for Abdominal Aortic Aneurysms. Annals Vas Surg 1991; 5(6):491-499.
Preminger TJ et al., Transluminal vascular stenting using a GORE-TEX covered stent: An experimental study. Presented at Congress of Pediatric Cardiology and Cardiac Surgery Jun. 21-25, 1993.
Sayers RD et al., Endovascular stenting of abdominal aortic aneurysms. Eur J Vasc Surg 1993; 7:225-227.
Schenck RR and Derman GH. An Intraluminal Silastic Stent for Small Vessel Repair. Orth Clin N.A. 1977; 8(2):265-271.
Yoshida H et al., Transcatheter Placement of an Intraluminal Prosthesis for the Thoracis Aorta, A New Approach to Aortic Dissections. ASAIO Transactions 1991; 37:M272-273.
Yoshioka T et al. Self-Expanding Endovascular Graft: An Experimental Study in Dogs. AJR 1988; 151:673-676.
Notice of Opposition to European Patent EP 714,487 to W. L. Gore & Assoc. Inc. by Meadox Medicals, Inc.(including Facts and Arguments) Jan. 21, 1999.
Kesting et al. "Synthetic Polymeric Membranes" (1985) pp. 290-297.

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