Thermal dilatation catheter and method

Details Thermal dilatation catheter and method Thermal dilatation catheter and method

1991-02-22

1993-01-12

Rosenbaum, C. Fred

Surgery

Instruments

Electrical application

A61B 1736

Patent

active

051786206

ABSTRACT:
This invention provides a method and an apparatus for selectively heating a resistive mass which partially or fully occludes a particular tubal passage, such as a blood vessel or the urethra. As a result, the tubal passage is effectively softened or weakened, allowing the tubal passage to be more readily recanalized by expansion of a balloon or other dilatation means. This invention also provides a method and an apparatus for effectively boring through a partially or fully occluded tubal passage by simultaneously applying both (1) heat to the occlusive mass surrounding the tip of the catheter and (2) pressure against the mass within the partially or fully occluded passage.

REFERENCES:
patent: 4998933 (1991-03-01), Eggers et al.
Dotter et al. (1964) Circulation 30:654.
Gruntzig et al. (1979) New Eng. J. Med. 301:61.
Meier and King (1984) J. Amer. College Card. 55:463.
Cumberland (Jun. 28, 1986) pp. 1457-1459.
Kensey et al. (1986) Circulation 74:(II):11.
Simpson et al. (1986) Circulation 74:(II):4 #808, 809.
Faxon et al. (1985) Circulation 72:(II):4 #1876.

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