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DE69225895D1 - Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren - Google Patents

Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren

Info

Publication number
DE69225895D1
DE69225895D1 DE69225895T DE69225895T DE69225895D1 DE 69225895 D1 DE69225895 D1 DE 69225895D1 DE 69225895 T DE69225895 T DE 69225895T DE 69225895 T DE69225895 T DE 69225895T DE 69225895 D1 DE69225895 D1 DE 69225895D1
Authority
DE
Germany
Prior art keywords
liquid nitrogen
refrigerant
vent
return
sub
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 - Fee Related
Application number
DE69225895T
Other languages
English (en)
Other versions
DE69225895T2 (de
Inventor
John Baust
Zhao Chang
J Finkelstein
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.)
Biolife Solutions Inc
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
Publication of DE69225895D1 publication Critical patent/DE69225895D1/de
Application granted granted Critical
Publication of DE69225895T2 publication Critical patent/DE69225895T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE69225895T 1991-09-06 1992-09-04 Kryochirurgisches instrument mit abzugsöffnungen sowie verfahren Expired - Fee Related DE69225895T2 (de)

Applications Claiming Priority (2)

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
PCT/US1992/007448 WO1993004647A1 (en) 1991-09-06 1992-09-04 Cryosurgical instrument with vent holes and method

Publications (2)

Publication Number Publication Date
DE69225895D1 true DE69225895D1 (de) 1998-07-16
DE69225895T2 DE69225895T2 (de) 1998-10-08

Family

ID=25042816

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225895T Expired - Fee Related DE69225895T2 (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)

Families Citing this family (160)

* Cited by examiner, † Cited by third party
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US5254116A (en) 1993-10-19
EP0602188A1 (de) 1994-06-22
CA2117081A1 (en) 1993-03-18
AU2756592A (en) 1993-04-05
ATE167037T1 (de) 1998-06-15
AU660500B2 (en) 1995-06-29
DE69225895T2 (de) 1998-10-08
ES2119822T3 (es) 1998-10-16
MX9205087A (es) 1993-03-01
EP0602188A4 (de) 1994-12-07
JPH07501240A (ja) 1995-02-09
EP0602188B1 (de) 1998-06-10
NZ244240A (en) 1994-09-27
IL103038A (en) 1995-11-27
TW270886B (de) 1996-02-21
DK0602188T3 (da) 1999-03-22
PL170963B1 (en) 1997-02-28
WO1993004647A1 (en) 1993-03-18
CN1075248A (zh) 1993-08-18

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