CA2261177A1 - Cryoprobe - Google Patents

Cryoprobe

Info

Publication number
CA2261177A1
CA2261177A1 CA002261177A CA2261177A CA2261177A1 CA 2261177 A1 CA2261177 A1 CA 2261177A1 CA 002261177 A CA002261177 A CA 002261177A CA 2261177 A CA2261177 A CA 2261177A CA 2261177 A1 CA2261177 A1 CA 2261177A1
Authority
CA
Canada
Prior art keywords
heat exchanger
cryo
flow directing
sheath
exchanger coil
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.)
Granted
Application number
CA002261177A
Other languages
French (fr)
Other versions
CA2261177C (en
Inventor
Paul W. Mikus
Gregory L. Kelly
Ralph K. Brady
K. David Crockett
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.)
Endocare Inc
Original Assignee
Endocare, Inc.
Paul W. Mikus
Gregory L. Kelly
Ralph K. Brady
K. David Crockett
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 Endocare, Inc., Paul W. Mikus, Gregory L. Kelly, Ralph K. Brady, K. David Crockett filed Critical Endocare, Inc.
Publication of CA2261177A1 publication Critical patent/CA2261177A1/en
Application granted granted Critical
Publication of CA2261177C publication Critical patent/CA2261177C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00041—Heating, e.g. defrosting
    • 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
    • A61B2018/0293—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument interstitially inserted into the body, e.g. needle
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/02—Gas cycle refrigeration machines using the Joule-Thompson effect
    • F25B2309/021—Gas cycle refrigeration machines using the Joule-Thompson effect with a cryosurgical probe tip having a specific construction
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/27—Cryogenic

Abstract

This invention is cryo-coolers (10) for use in cryosurgery, and other applications comprising finned tube helical heat exchanger (20), and a flow directing sheath (30) covering portions of the heat exchanger coil and isolating portions of the heat exchanger coil from the outer sheath (11) of the cryo-cooler. The size and shape of ice balls created by the probes is controlled by the extent and location of the flow directing sheath.
CA002261177A 1996-07-23 1997-07-21 Cryoprobe Expired - Lifetime CA2261177C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/685,326 1996-07-23
US08/685,233 1996-07-23
US08/685,233 US5800487A (en) 1996-07-23 1996-07-23 Cryoprobe
US08/685,326 US5800488A (en) 1996-07-23 1996-07-23 Cryoprobe with warming feature

Publications (2)

Publication Number Publication Date
CA2261177A1 true CA2261177A1 (en) 1998-02-05
CA2261177C CA2261177C (en) 2007-05-29

Family

ID=27103539

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002261177A Expired - Lifetime CA2261177C (en) 1996-07-23 1997-07-21 Cryoprobe

Country Status (8)

Country Link
US (3) US5800487A (en)
EP (1) EP0925045B1 (en)
JP (1) JP2000516696A (en)
AT (1) ATE237289T1 (en)
AU (1) AU740358B2 (en)
CA (1) CA2261177C (en)
DE (1) DE69721015T2 (en)
WO (1) WO1998004221A1 (en)

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AU3806597A (en) 1998-02-20
AU740358B2 (en) 2001-11-01
DE69721015D1 (en) 2003-05-22
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US5800488A (en) 1998-09-01
CA2261177C (en) 2007-05-29
EP0925045A4 (en) 1999-09-15
US6074412A (en) 2000-06-13
ATE237289T1 (en) 2003-05-15
EP0925045A1 (en) 1999-06-30
JP2000516696A (en) 2000-12-12
WO1998004221A1 (en) 1998-02-05
US5800487A (en) 1998-09-01

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