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1. (WO2002004042) BALLOON CRYOGENIC CATHETER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2002/004042 International Application No.: PCT/US2001/021454
Publication Date: 17.01.2002 International Filing Date: 05.07.2001
Chapter 2 Demand Filed: 06.02.2002
IPC:
A61B 17/22 (2006.01) ,A61B 18/02 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
22
Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
02
by cooling, e.g. cryogenic techniques
Applicants:
CRYOGEN, INC. [US/US]; 11065 Sorrento Valley Court San Diego, CA 92121, US
Inventors:
MURRAY, David, R.; US
LI, Hong; US
Agent:
SPINKS, Gerald, W.; P.O. Box 2330 Port Orchard, WA 98366, US
Priority Data:
09/611,24006.07.2000US
Title (EN) BALLOON CRYOGENIC CATHETER
(FR) CATHETER CRYOGENIQUE A BALLONNET
Abstract:
(EN) A method and apparatus for inflating a balloon (14) at a distal portion of an elongated delivery catheter (12) to contact surrounding biological tissue, and expanding a refrigerant adjacent the balloon to cool the biological tissue to render it non-viable. The inflation of the balloon can be accomplished with the expanded refrigerant of with a separate pressurized fluid. The balloon can act as a heat transfer element, or there can be a separate heat transfer element (30) on the catheter adjacent the balloon. The apparatus can be used to perform a dilation procedure, such as angioplasty, in conjunction with cooling of the surrounding tissue.
(FR) L'invention concerne un procédé et un appareil destinés à gonfler un ballonnet au niveau d'une partie distale du cathéter d'administration de forme allongée en vue d'entrer en contact avec les tissus biologiques environnants, et à effectuer une expansion du frigorigène situé à proximité du ballonnet en vue de refroidir les tissus biologiques afin de les rendre non viables. Le gonflage du ballonnet peut être effectué au moyen du frigorigène expansé ou au moyen d'un fluide sous pression séparé. Le ballonnet peut servir d'élément de transfert de chaleur, ou le cathéter peut comporter un élément de transfert de chaleur séparé à proximité du ballonnet. L'appareil de l'invention peut être utilisé en vue de réaliser une opération de dilatation, tel qu'une angioplastie, ainsi qu'un refroidissement des tissus environnants.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)