Porous structure of polytetrafluoroethylene and process for prod

Details Porous structure of polytetrafluoroethylene and process for prod Porous structure of polytetrafluoroethylene and process for prod

1986-01-24

1987-12-15

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

623 12, 623 66, 128DIG14, 428376, A61F 206, A61F 202

Patent

active

047130709

ABSTRACT:
A porous polytetrafluoroethylene material is disclosed having a molecular microfibrous structure having, at one surface, a strong orientation in a given direction and, at another opposite surface, a strong orientation and a direction at right angles to the first, in which the orientation of the microfibrous structure progressively changes from one surface to the other. A process for preparing such an element is also disclosed.

REFERENCES:
patent: 4082893 (1978-04-01), Okita
patent: 4193138 (1980-03-01), Okita
patent: 4208745 (1980-06-01), Okita
patent: 4229838 (1980-10-01), Mano
patent: 4304010 (1981-12-01), Mano
patent: 4332035 (1982-06-01), Mano

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