Efficient controlled cryogenic fluid delivery into a balloon...

Details Efficient controlled cryogenic fluid delivery into a balloon... Efficient controlled cryogenic fluid delivery into a balloon...

2004-12-15

2009-10-20

Johnson, III, Henry M (Department: 3769)

Surgery

Instruments

Cyrogenic application

C251S129150

Reexamination Certificate

active

07604631

ABSTRACT:
Devices, systems, and methods efficiently dilate and/or cool blood vessels and other body tissues. Controlled cooling with balloon catheters and other probes may be effected by a change in phase of a cryogenic fluid, often after measuring a minimum pulse width for actuating an individual solenoid valve along the cooling fluid path, with the measured pulse width allowing gradual inflation of a balloon without excessive venting of cooling fluid.

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