A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 18/18 (2006.01)
Patent
CA 2589573
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, ofthen 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.
L'invention concerne des dispositifs, des systèmes et des procédés permettant de dilater et/ou de refroidir efficacement des vaisseaux sanguins et d'autres tissus corporels. Le refroidissement contrôlé utilisant des cathéters à ballonnet et d'autres sondes est mis en oeuvre grâce au changement de phase d'un fluide cryogénique, généralement après la mesure d'une largeur d'impulsion minimum qui déclenche l'actionnement d'une vanne électromagnétique individuelle prévue dans le circuit du fluide de refroidissement, la largeur d'impulsion mesurée permettant de gonfler progressivement le ballonnet sans déperdition excessive du fluide de refroidissement.
Cryovascular Systems Inc.
Piasetzki Nenniger Kvas Llp
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