WO1994020036A3 - Method of cryosurgery and apparatus for use therein - Google Patents

Method of cryosurgery and apparatus for use therein Download PDF

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Publication number
WO1994020036A3
WO1994020036A3 PCT/GB1994/000403 GB9400403W WO9420036A3 WO 1994020036 A3 WO1994020036 A3 WO 1994020036A3 GB 9400403 W GB9400403 W GB 9400403W WO 9420036 A3 WO9420036 A3 WO 9420036A3
Authority
WO
WIPO (PCT)
Prior art keywords
target tissue
cryosurgery
bath
housing
probe
Prior art date
Application number
PCT/GB1994/000403
Other languages
French (fr)
Other versions
WO1994020036A2 (en
Inventor
Elizabeth Acton
George John Morris
Original Assignee
Elizabeth Acton
George John Morris
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 Elizabeth Acton, George John Morris filed Critical Elizabeth Acton
Priority to AU61459/94A priority Critical patent/AU6145994A/en
Publication of WO1994020036A2 publication Critical patent/WO1994020036A2/en
Publication of WO1994020036A3 publication Critical patent/WO1994020036A3/en

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Classifications

    • 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
    • A61B18/0206—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques ultrasonic, e.g. for destroying tissue or enhancing freezing

Abstract

A bath for use in cryosurgery comprises a reservoir containing a coolant medium (2), and an ultrasonic source (1) adapted to transmit ultrasound to target tissue in the bath. The bath is suitable for use in a method of cryosurgery in which the temperature of the target tissue is reduced to below its melting point and the target tissue is subjected to ultrasound so as to induce nucleation in the target tissue undergoing freezing. The invention also provides a cryogenic-ultrasonic surgical probe (11) comprising a housing (14), an ultrasonic source (12) accommodated in said housing (14) and means for admitting a coolant medium in and withdrawing it from the housing (14), which probe (11) has a deformable end tip portion (6) containing a coolant fluid or gel. The probe is also adapted for use in a method of cryosurgery in which the ultrasonic energy induces nucleation in the target tissue undergoing freezing.
PCT/GB1994/000403 1993-03-02 1994-03-02 Method of cryosurgery and apparatus for use therein WO1994020036A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61459/94A AU6145994A (en) 1993-03-02 1994-03-02 Method of cryosurgery and apparatus for use therein

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939304238A GB9304238D0 (en) 1993-03-02 1993-03-02 Method of cryosurgery and apparatus for use therein
GB9304238.0 1993-03-02

Publications (2)

Publication Number Publication Date
WO1994020036A2 WO1994020036A2 (en) 1994-09-15
WO1994020036A3 true WO1994020036A3 (en) 1994-10-27

Family

ID=10731330

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/000403 WO1994020036A2 (en) 1993-03-02 1994-03-02 Method of cryosurgery and apparatus for use therein

Country Status (3)

Country Link
AU (1) AU6145994A (en)
GB (1) GB9304238D0 (en)
WO (1) WO1994020036A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162677A (en) * 1977-05-19 1979-07-31 Virginia M. Gregory Cryogenic device and method for necrotizing and shaving live tissue
US4315514A (en) * 1980-05-08 1982-02-16 William Drewes Method and apparatus for selective cell destruction
US4898148A (en) * 1988-06-28 1990-02-06 Urso Charles L Versatile heater/cooler
US5139496A (en) * 1990-12-20 1992-08-18 Hed Aharon Z Ultrasonic freeze ablation catheters and probes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162677A (en) * 1977-05-19 1979-07-31 Virginia M. Gregory Cryogenic device and method for necrotizing and shaving live tissue
US4315514A (en) * 1980-05-08 1982-02-16 William Drewes Method and apparatus for selective cell destruction
US4898148A (en) * 1988-06-28 1990-02-06 Urso Charles L Versatile heater/cooler
US5139496A (en) * 1990-12-20 1992-08-18 Hed Aharon Z Ultrasonic freeze ablation catheters and probes

Also Published As

Publication number Publication date
GB9304238D0 (en) 1993-04-21
AU6145994A (en) 1994-09-26
WO1994020036A2 (en) 1994-09-15

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