Apparatus for widening a stenosis in a body cavity

Details Apparatus for widening a stenosis in a body cavity Apparatus for widening a stenosis in a body cavity

1992-10-13

1994-10-11

Rosenbaum, C. Fred

Surgery

Instruments

Internal pressure applicator

623 1, 623 12, 623 11, A61M 2900

Patent

active

053543092

ABSTRACT:
An apparatus for widening a stenosis in a body cavity, such as an artery, in the bile duct, in the ureter, etc. is proposed, which in view of a problem-free, reliable and permanent widening of a stenosis is characterized by a memory alloy part having a cylindrical jacket-shaped outer contour, said part radially widening at a transition temperature, which is above ambient temperature, but below body temperature, whilst maintaining a cylindrical outer contour and at a temperature below the transition temperature the diameter is smaller than that of the vessel.

REFERENCES:
patent: 3868956 (1975-03-01), Alfidi
patent: 4856516 (1989-08-01), Hillstead
patent: 4955859 (1990-09-01), Zilber
patent: 5041126 (1991-08-01), Gianturco
patent: 5061275 (1991-10-01), Wallsten et al.
patent: 5102417 (1992-04-01), Palmaz
patent: 5133732 (1992-07-01), Wiktor
patent: 5195984 (1993-03-01), Schatz
patent: 5197978 (1993-03-01), Hess

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