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ATE167037T1 - Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren - Google Patents

Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren

Info

Publication number
ATE167037T1
ATE167037T1 AT92921264T AT92921264T ATE167037T1 AT E167037 T1 ATE167037 T1 AT E167037T1 AT 92921264 T AT92921264 T AT 92921264T AT 92921264 T AT92921264 T AT 92921264T AT E167037 T1 ATE167037 T1 AT E167037T1
Authority
AT
Austria
Prior art keywords
liquid nitrogen
refrigerant
vent
return
sub
Prior art date
Application number
AT92921264T
Other languages
English (en)
Inventor
John G Baust
Zhao Hua Chang
J J Finkelstein
Original Assignee
Cryomedical Sciences 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
Application filed by Cryomedical Sciences Inc filed Critical Cryomedical Sciences Inc
Application granted granted Critical
Publication of ATE167037T1 publication Critical patent/ATE167037T1/de

Links

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A61B2017/00092—Temperature using thermocouples
    • 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
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00089—Thermal conductivity
    • A61B2018/00101—Thermal conductivity low, i.e. thermally insulating
    • 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
    • A61B2018/0268—Characteristics of handpieces or probes using a circulating cryogenic fluid with restriction of flow
    • A61B2018/0275—Characteristics of handpieces or probes using a circulating cryogenic fluid with restriction of flow using porous elements

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Otolaryngology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Control Of Combustion (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
AT92921264T 1991-09-06 1992-09-04 Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren ATE167037T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/756,287 US5254116A (en) 1991-09-06 1991-09-06 Cryosurgical instrument with vent holes and method using same

Publications (1)

Publication Number Publication Date
ATE167037T1 true ATE167037T1 (de) 1998-06-15

Family

ID=25042816

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92921264T ATE167037T1 (de) 1991-09-06 1992-09-04 Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren

Country Status (16)

Country Link
US (1) US5254116A (de)
EP (1) EP0602188B1 (de)
JP (1) JPH07501240A (de)
CN (1) CN1075248A (de)
AT (1) ATE167037T1 (de)
AU (1) AU660500B2 (de)
CA (1) CA2117081A1 (de)
DE (1) DE69225895T2 (de)
DK (1) DK0602188T3 (de)
ES (1) ES2119822T3 (de)
IL (1) IL103038A (de)
MX (1) MX9205087A (de)
NZ (1) NZ244240A (de)
PL (1) PL170963B1 (de)
TW (1) TW270886B (de)
WO (1) WO1993004647A1 (de)

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MX9205087A (es) 1993-03-01
CA2117081A1 (en) 1993-03-18
EP0602188B1 (de) 1998-06-10
AU660500B2 (en) 1995-06-29
DK0602188T3 (da) 1999-03-22
TW270886B (de) 1996-02-21
EP0602188A1 (de) 1994-06-22
JPH07501240A (ja) 1995-02-09
PL170963B1 (en) 1997-02-28
DE69225895D1 (de) 1998-07-16
EP0602188A4 (de) 1994-12-07
ES2119822T3 (es) 1998-10-16
DE69225895T2 (de) 1998-10-08
WO1993004647A1 (en) 1993-03-18
AU2756592A (en) 1993-04-05
NZ244240A (en) 1994-09-27
IL103038A (en) 1995-11-27
CN1075248A (zh) 1993-08-18
US5254116A (en) 1993-10-19

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