Method for cryogenic inhibition of hyperplasia

Details Method for cryogenic inhibition of hyperplasia Method for cryogenic inhibition of hyperplasia

1997-12-02

1999-10-26

Dvorak, Linda C. M.

Surgery

Instruments

Cyrogenic application

128898, A61B 1736

Patent

active

059719796

ABSTRACT:
Post-angioplasty hyperplasia in blood vessels is treated using a cryosurgical balloon catheter. The balloon catheter is positioned at a target region within the blood vessel, and the balloon inflated by expanding a cryogenic fluid, such as liquid nitrogen, across an expansion orifice into a balloon. The balloon will be constructed so that cooling is achieved primarily in the central regions of the balloon, with the proximal and distal regions being less cold and acting to insulate adjacent regions of the blood vessel from excessive cooling.

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Gage, M.D., Andrew A., et al., "Freezing injury to large blood vessels in dogs," Surgery, vol. 61, No. 5, May, 1997, pp. 748-754.

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