Global patent index - EP 1075222 A1

EP 1075222 A1 2001-02-14 - CRYOSURGICAL APPARATUS

Title (en)

CRYOSURGICAL APPARATUS

Title (de)

KRYOCHIRURGISCHES GERÄT

Title (fr)

INSTRUMENT DE CRYOCHIRURGIE

Publication

EP 1075222 A1 (EN)

Application

EP 99919422 A

Priority

  • GB 9901354 W
  • GB 9809342 A

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 (main, further and additional classification)

A61B 17/36

IPC 8 full level (invention and additional information)

A61B 18/02 (2006.01)

CPC (invention and additional information)

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

EPO simple patent family

GB 2336781 A 19991103; GB 2336781 B 20010307; GB 9809342 D0 19980701; EP 1075222 A1 20010214; JP 2002513615 A 20020514; WO 9956641 A1 19991111

INPADOC legal status

2003-01-29 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20021206

2001-02-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001107

2001-02-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT