A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 18/02 (2006.01) A61M 25/10 (2006.01) A61B 17/00 (2006.01) A61B 17/22 (2006.01)
Patent
CA 2461217
The present invention relates to a system and method utilizing cryogenic cooling in an angioplasty balloon catheter (100) for treatment of arterial stenosis and prevention of restenosis. More particularly, the present invention relates to an angioplasty balloon catheter (100) utilizing expansion of compressed gas to effect Joule-Thomson cooling of an angioplasty balloon (110), and optionally further incorporating external temperature sensors to identify a locus for treatment of arterial stenosis. The present invention further relates to angioplasty treatment systems incorporating such a catheter, and to cryogenic angioplasty methods for treating arterial stenosis and discouraging restenosis.
L'invention concerne un appareil, des systèmes et des procédés utilisant un refroidissement cryogénique dans un cathéter à ballon d'angioplastie pour le traitement de sténose artérielle et la prévention de resténose. Elle concerne plus particulièrement un cathéter à ballon d'angioplastie utilisant l'expansion d'un gaz comprimé afin d'obtenir le refroidissement, par effet Joule-Thomson, d'un ballon d'angioplastie, et éventuellement l'incorporation ultérieure de capteurs de température externe permettant d'identifier un locus pour le traitement de sténose artérielle. L'invention concerne enfin des systèmes de traitement d'angioplastie incorporant un tel cathéter, et des procédés d'angioplastie cryogénique destinés à traiter la sténose artérielle et la resténose décourageante.
Amir Uri
Bliweis Mordechai
Mcglone James
Schechter Doris
Zvuloni Roni
Galil Medical Ltd.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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