Process for restoring patency to body vessels

Details Process for restoring patency to body vessels Process for restoring patency to body vessels

1983-01-25

1985-04-23

Rosenbaum, C. Fred

Surgery

Truss

Perineal

128341, A61M 2900, A61B 1900

Patent

active

045123381

ABSTRACT:
A process in which a shape memory alloy such as nitinol wire which has been previously fabricated in its parent phase to form a longitudinally oriented coil of adjacent wire loops and thereafter cooled to its martensite phase and reshaped to a relatively straight shape, is utilized as an intra-luminal device to reinforce or replace a weakened or otherwise damaged vessel. The reformable wire is inserted into the vessel in such a manner to be temperature insulated such that upon the removal of the insulation means, the wire reforms to its coil shape so as to be urged against the internal walls of the damaged vessel and supplies a patent channel through which body fluids may pass. In this manner, removal of the damaged portion of the vessel with the attachment of graft material as a replacement thereto along with the complex surgical techniques required to perform such is avoided.

REFERENCES:
patent: 3868956 (1975-03-01), Alfidi et al.
patent: 4170990 (1979-10-01), Baumgart et al.
patent: 4425908 (1984-01-01), Simon

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