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

1994-07-08

1996-07-30

Maglione, Corrine M.

Surgery

Instruments

Internal pressure applicator

623 1, 623 11, 623 12, A61M 2900

Patent

active

055407137

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, while maintaining a cylindrical outer contour and at a temperature below the transition temperature the diameter is smaller than that of the vessel.

REFERENCES:
patent: 3657744 (1972-04-01), Ersek
patent: 3868956 (1975-03-01), Alfidi
patent: 4512338 (1985-04-01), Balko et al.
patent: 4856516 (1989-08-01), Hillstead
patent: 4955859 (1990-09-01), Zilber
patent: 5078736 (1992-01-01), Behl
patent: 5190546 (1993-03-01), Jervis
patent: 5197978 (1993-03-01), Hess
patent: 5344426 (1994-09-01), Lau et al.
patent: 5354309 (1994-10-01), Schnepp-Pesch et al.

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