WO2000035362A3 - Cryogen supply apparatus - Google Patents

Cryogen supply apparatus Download PDF

Info

Publication number
WO2000035362A3
WO2000035362A3 PCT/GB1999/004110 GB9904110W WO0035362A3 WO 2000035362 A3 WO2000035362 A3 WO 2000035362A3 GB 9904110 W GB9904110 W GB 9904110W WO 0035362 A3 WO0035362 A3 WO 0035362A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
instrument
cryogen
joule
thompson
Prior art date
Application number
PCT/GB1999/004110
Other languages
French (fr)
Other versions
WO2000035362A2 (en
Inventor
Gareth Copping
Richard Coleman
Original Assignee
Spembly Medical Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spembly Medical Ltd filed Critical Spembly Medical Ltd
Publication of WO2000035362A2 publication Critical patent/WO2000035362A2/en
Publication of WO2000035362A3 publication Critical patent/WO2000035362A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/003—Housing formed from a plurality of the same valve elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A61B2018/0231—Characteristics of handpieces or probes
    • A61B2018/0262—Characteristics of handpieces or probes using a circulating cryogenic fluid

Abstract

A cryogen supply unit is disclosed for controlling the flow of a Joule-Thompson fluid through a cryosurgical instrument. The supply unit includes a fluid flow path manifold block (16) formed as an assembly of three sub-units (16a, 16b, 16c). The manifold block includes internal fluid passageways and carries functional devices including pressure regulators (36, 82), open/closed valves (54, 56, 90, 92), connector sockets (30, 22, 86) and fluid pressure sensors (40, 46). The manifold avoids the need for conventional floating or suspended tubes to link the functional devices. A defrosting method is also described for defrosting the Joule-Thompson instrument by applying generally equal pressures of cryogen fluid to the inlet and exhaust channels of the instrument.
PCT/GB1999/004110 1998-12-14 1999-12-07 Cryogen supply apparatus WO2000035362A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9827510A GB2344873A (en) 1998-12-14 1998-12-14 Cryogen supply apparatus
GB9827510.0 1998-12-14

Publications (2)

Publication Number Publication Date
WO2000035362A2 WO2000035362A2 (en) 2000-06-22
WO2000035362A3 true WO2000035362A3 (en) 2000-08-03

Family

ID=10844201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/004110 WO2000035362A2 (en) 1998-12-14 1999-12-07 Cryogen supply apparatus

Country Status (2)

Country Link
GB (1) GB2344873A (en)
WO (1) WO2000035362A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6592577B2 (en) 1999-01-25 2003-07-15 Cryocath Technologies Inc. Cooling system
US6569158B1 (en) 1999-01-25 2003-05-27 Cryocath Technologies, Inc. Leak detection system
GB2360573B (en) * 2000-03-23 2002-05-22 Spembly Medical Ltd Refrigeration instrument and system
US6604366B1 (en) * 2002-09-19 2003-08-12 Raytheon Company Solid cryogen cooling system for focal plane arrays
DE10358085C5 (en) * 2003-12-10 2012-06-28 Danfoss A/S Refrigerant valve assembly
DE102009017370B3 (en) * 2009-04-14 2010-12-09 Erbe Elektromedizin Gmbh Adapter for overpressure protection, cryoprobe with appropriate adapter and cryosurgical device with overpressure protection
US9522030B2 (en) * 2013-01-23 2016-12-20 Medtronic Cryocath Lp Purge phase for cryoablation systems
GB2530727A (en) * 2014-09-26 2016-04-06 Linde Aktiengesellshcaft Flow control of cryogen through a nozzle
CN109620392B (en) * 2018-12-11 2021-01-01 海杰亚（北京）医疗器械有限公司 Working medium distribution equipment and system for high-low temperature treatment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589387A (en) * 1969-08-22 1971-06-29 Int Basic Economy Corp Integrated manifold circuits and method of assembly
US4018227A (en) * 1975-10-09 1977-04-19 Cryomedics, Inc. Cryosurgical instrument
US4063560A (en) * 1975-04-22 1977-12-20 Spembly Limited Cryosurgical instrument
WO1992004872A1 (en) * 1990-09-26 1992-04-02 Cryomedical Sciences, Inc. Cryosurgical instrument and system and method of cryosurgery
GB2289413A (en) * 1994-05-10 1995-11-22 Spembly Medical Ltd Cryosurgical instrument
US5597009A (en) * 1994-03-17 1997-01-28 Societe Europeenne De Propulsion Vacuum-enclosed integral cryogenic valve
WO1998004221A1 (en) * 1996-07-23 1998-02-05 Endocare, Inc. Cryoprobe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1438759A (en) * 1972-06-02 1976-06-09 Spembly Ltd Cryo-surgical apparatus
US4028907A (en) * 1975-12-15 1977-06-14 Texas Instruments Incorporated Adjustable-Joule-Thomson cryogenic cooler with downstream thermal compensation
US4377168A (en) * 1981-02-27 1983-03-22 Wallach Surgical Instruments, Inc. Cryosurgical instrument
US5131240A (en) * 1988-12-23 1992-07-21 Mitsubishi Denki Kabushiki Kaisha Air conditioning apparatus
US5341846A (en) * 1993-11-22 1994-08-30 Mead Fluid Dynamics, Inc. Valve stack assembly
GB9409585D0 (en) * 1994-05-13 1994-07-06 Carter Refrigeration Display Ltd Refrigeration unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589387A (en) * 1969-08-22 1971-06-29 Int Basic Economy Corp Integrated manifold circuits and method of assembly
US4063560A (en) * 1975-04-22 1977-12-20 Spembly Limited Cryosurgical instrument
US4018227A (en) * 1975-10-09 1977-04-19 Cryomedics, Inc. Cryosurgical instrument
WO1992004872A1 (en) * 1990-09-26 1992-04-02 Cryomedical Sciences, Inc. Cryosurgical instrument and system and method of cryosurgery
US5597009A (en) * 1994-03-17 1997-01-28 Societe Europeenne De Propulsion Vacuum-enclosed integral cryogenic valve
GB2289413A (en) * 1994-05-10 1995-11-22 Spembly Medical Ltd Cryosurgical instrument
WO1998004221A1 (en) * 1996-07-23 1998-02-05 Endocare, Inc. Cryoprobe

Also Published As

Publication number Publication date
WO2000035362A2 (en) 2000-06-22
GB9827510D0 (en) 1999-02-10
GB2344873A (en) 2000-06-21

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