GB1332181A - Cryogenic biological apparatus - Google Patents

Cryogenic biological apparatus

Info

Publication number
GB1332181A
GB1332181A GB4580370A GB4580370A GB1332181A GB 1332181 A GB1332181 A GB 1332181A GB 4580370 A GB4580370 A GB 4580370A GB 4580370 A GB4580370 A GB 4580370A GB 1332181 A GB1332181 A GB 1332181A
Authority
GB
United Kingdom
Prior art keywords
gas
valve
helical coil
temperature
device
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4580370A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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
Priority to US88407169A priority Critical
Application filed by Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of GB1332181A publication Critical patent/GB1332181A/en
Application status is Expired legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/02Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A61B18/0218Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques with open-end cryogenic probe, e.g. for spraying fluid directly on tissue or via a tissue-contacting porous tip

Abstract

1332181 Refrigerating AIR PRODUCTS & CHEMICALS Inc 25 Sept 1970 [11 Dec 1969] 45803/70 Heading F4H [Also in Division A5] A device 18 for directing a jet of cryogenic fluid upon skin tissue comprises a nozzle 36 and means for cooling gas which is at a high pressure to a cryogenic temperature. The gas on entering the device through an attachment 54 is split into two streams, the first of which passes through a helical coil 49 of finned tube wound on a mandrel 42, and into a chamber 52 via a tip 50 which permits Joule-Thompson expansion of the gas and the consequent lowering of its temperature. The first gas stream in the helical coil on the mandrel is then precooled by heat transfer with the countercurrent passage of the expanded gas towards a vent 70 so that the fluid from the Joule-Thompson expansion is further reduced in temperature to a liquid-vapour mixture which is cold enough to liquefy by heat exchange the second stream of gas which passes through a helical coil 57 and then through a tube 58 from which it impinges the surface of the skin. The device is thermally insulated with material 72 such as extended polyurethane foam. The flow of gas from a high pressure cylinder (10) Fig. 1 (not shown) is regulated by means of a pressure reducing valve (20), downstream of which is a bed (22) of adsorbent material which removes impurities which may solidify and obstruct the heat exchange tubes. A further valve 24 which is electrically controlled is positioned to block the flow of gas to the probe, a light (30) across the electrical leads to the valve, indicating the open position of the valve.
GB4580370A 1969-12-11 1970-09-25 Cryogenic biological apparatus Expired GB1332181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US88407169A true 1969-12-11 1969-12-11

Publications (1)

Publication Number Publication Date
GB1332181A true GB1332181A (en) 1973-10-03

Family

ID=25383890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4580370A Expired GB1332181A (en) 1969-12-11 1970-09-25 Cryogenic biological apparatus

Country Status (2)

Country Link
US (1) US3630203A (en)
GB (1) GB1332181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269107A (en) * 1992-07-31 1994-02-02 Spembly Medical Ltd Cryosurgical ablation
US6383181B1 (en) * 1997-05-23 2002-05-07 Frank Majerowicz Method and apparatus for cryogenic spray ablation of gastrointestinal mucosa

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823575A (en) * 1971-06-07 1974-07-16 Univ Melbourne Cryogenic apparatus
US3823718A (en) * 1972-09-15 1974-07-16 T Tromovitch Portable cryosurgical apparatus
US3901241A (en) * 1973-05-31 1975-08-26 Al Corp Du Disposable cryosurgical instrument
US5275595A (en) * 1992-07-06 1994-01-04 Dobak Iii John D Cryosurgical instrument
GB2283678B (en) * 1993-11-09 1998-06-03 Spembly Medical Ltd Cryosurgical catheter probe
JP3263275B2 (en) * 1994-04-05 2002-03-04 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア Apparatus and flame-shaped spots nevi laser processing apparatus for laser treatment of biological tissue
US6530234B1 (en) 1995-10-12 2003-03-11 Cryogen, Inc. Precooling system for Joule-Thomson probe
US5976123A (en) * 1996-07-30 1999-11-02 Laser Aesthetics, Inc. Heart stabilization
US5820626A (en) * 1996-07-30 1998-10-13 Laser Aesthetics, Inc. Cooling laser handpiece with refillable coolant reservoir
US6270494B1 (en) 1996-12-26 2001-08-07 Cryogen, Inc. Stretchable cryoprobe sheath
US5910104A (en) 1996-12-26 1999-06-08 Cryogen, Inc. Cryosurgical probe with disposable sheath
US5846235A (en) * 1997-04-14 1998-12-08 Johns Hopkins University Endoscopic cryospray device
US7255693B1 (en) * 1997-05-23 2007-08-14 Csa Medical, Inc. Heated catheter used in cryotherapy
US5968034A (en) * 1997-06-24 1999-10-19 Laser Aesthetics, Inc. Pulsed filament lamp for dermatological treatment
US6648879B2 (en) 1999-02-24 2003-11-18 Cryovascular Systems, Inc. Safety cryotherapy catheter
US6514245B1 (en) * 1999-03-15 2003-02-04 Cryovascular Systems, Inc. Safety cryotherapy catheter
US6432102B2 (en) * 1999-03-15 2002-08-13 Cryovascular Systems, Inc. Cryosurgical fluid supply
US6451007B1 (en) * 1999-07-29 2002-09-17 Dale E. Koop Thermal quenching of tissue
WO2004045434A2 (en) * 2002-11-18 2004-06-03 N.V. H & O Equipments Instrument for cryogenic treatments in the medical, paramedical and cosmetic field
US8328804B2 (en) 2008-07-24 2012-12-11 Covidien Lp Suction coagulator
US9144449B2 (en) 2012-03-02 2015-09-29 Csa Medical, Inc. Cryosurgery system
US9301796B2 (en) * 2012-03-02 2016-04-05 Csa Medical, Inc. Cryosurgery system
CA2951050A1 (en) 2014-06-04 2015-12-10 Csa Medical, Inc. Method and system for consistent, repeatable, and safe cryospray treatment of airway tissue

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477434A (en) * 1965-06-02 1969-11-11 Cvi Corp Cryosurgical apparatus
US3353371A (en) * 1966-06-23 1967-11-21 Gen Dynamics Corp Dual tube regenerative cryostat
US3504674A (en) * 1966-12-22 1970-04-07 Emil S Swenson Method and apparatus for performing hypothermia

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269107A (en) * 1992-07-31 1994-02-02 Spembly Medical Ltd Cryosurgical ablation
GB2269107B (en) * 1992-07-31 1996-05-08 Spembly Medical Ltd Cryosurgical ablation
EP0584930B1 (en) * 1992-07-31 1998-02-04 Spembly Medical Limited Cryosurgical ablation
US6383181B1 (en) * 1997-05-23 2002-05-07 Frank Majerowicz Method and apparatus for cryogenic spray ablation of gastrointestinal mucosa

Also Published As

Publication number Publication date
US3630203A (en) 1971-12-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees