EP 1075222 A1 20010214 - CRYOSURGICAL APPARATUS
Title (en)
CRYOSURGICAL APPARATUS
Title (de)
KRYOCHIRURGISCHES GERÄT
Title (fr)
INSTRUMENT DE CRYOCHIRURGIE
Publication
Application
Priority
- GB 9901354 W 19990430
- GB 9809342 A 19980430
Abstract (en)
[origin: GB2336781A] Cryosurgical apparatus, for example, a probe 10 produces cooling by vaporization of a liquid cryogen, such a liquid nitrogen. Means 40 are located adjacent to the cooling region of the probe to define a tortuous flow path for the cryogen to, through, or from, the cooling region, in order to improve the thermal efficiency of the probe. In one form, the means 40 consists of a wire wound into a spring shape to define a helical path between concentric conduits 22, 24 defining inlet and exhaust passages 26 and 28 for the cryogenic fluid.
IPC 1-7
IPC 8 full level
A61B 18/02 (2006.01)
CPC (source: EP)
A61B 18/02 (2013.01); A61B 2018/0281 (2013.01)
Citation (search report)
See references of WO 9956641A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
GB 2336781 A 19991103; GB 2336781 B 20010307; GB 9809342 D0 19980701; EP 1075222 A1 20010214; JP 2002513615 A 20020514; WO 9956641 A1 19991111
DOCDB simple family (application)
GB 9809342 A 19980430; EP 99919422 A 19990430; GB 9901354 W 19990430; JP 2000546678 A 19990430