Method and apparatus for maintaining patency in the body passage

Details Method and apparatus for maintaining patency in the body passage Method and apparatus for maintaining patency in the body passage

1990-05-04

1992-01-07

Isabella, David J.

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

Arterial prosthesis

Stent structure

623 66, A61F 206, A61F 202

Patent

active

050787365

ABSTRACT:
An intraluminal stent for maintaining patency in body passages subject to invasive tissue growth includes a cylindrical wall having radial passages therethrough. A mechanism is provided for disrupting cellular growth which penetrates through the passages. The mechanism may provide for mechanical disruption, thermal disruption, or preferably for excision using radio frequency energy. In a specific embodiment, the cylindrical wall is defined by a tubular mesh, and the mechanism for disrupting cellular growth comprises parallel wires within the mesh. The wires are connected to an external radio frequency source and act as electrodes in effecting excision using the radio frequency energy.

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