Apparatus and method for cryogenic inhibition of hyperplasia

Details Apparatus and method for cryogenic inhibition of hyperplasia Apparatus and method for cryogenic inhibition of hyperplasia

2005-06-21

2005-06-21

Rollins, Rosiland (Department: 3739)

Surgery

Instruments

Cyrogenic application

C606S021000, C606S022000, C128S898000

Reexamination Certificate

active

06908462

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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Examination Report (Registered Letter) from European Patent Office dated Mar. 18, 2004, for Application No. 98 959 646.5—2305 under the name Odyssey Technologies, Inc. (6 pgs).
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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