CA2517747A1 - Control system for cryosurgery - Google Patents

Control system for cryosurgery Download PDF

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Publication number
CA2517747A1
CA2517747A1 CA002517747A CA2517747A CA2517747A1 CA 2517747 A1 CA2517747 A1 CA 2517747A1 CA 002517747 A CA002517747 A CA 002517747A CA 2517747 A CA2517747 A CA 2517747A CA 2517747 A1 CA2517747 A1 CA 2517747A1
Authority
CA
Canada
Prior art keywords
loop
cryosurgery
control system
closed loop
controlling
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
CA002517747A
Other languages
French (fr)
Other versions
CA2517747C (en
Inventor
Ravikumar Kudaravalli
Hong Li
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.)
AMS Research LLC
Original Assignee
Cryogen, Inc.
Ravikumar Kudaravalli
Hong Li
American Medical Systems Gynecology, Inc.
Ams Research Corporation
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24546479&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2517747(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cryogen, Inc., Ravikumar Kudaravalli, Hong Li, American Medical Systems Gynecology, Inc., Ams Research Corporation filed Critical Cryogen, Inc.
Publication of CA2517747A1 publication Critical patent/CA2517747A1/en
Application granted granted Critical
Publication of CA2517747C publication Critical patent/CA2517747C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • 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, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00199—Electrical control of surgical instruments with a console, e.g. a control panel with a display
    • 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
    • A61B2018/0212—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 inserted into a body lumen, e.g. catheter
    • 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
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/13—Mass flow of refrigerants
    • 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
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36—Visual displays

Abstract

An apparatus and method for automatic operation of a refrigeration system (10) to provide refrigeration power to a catheter for tissue ablation or mapping. The primary refrigeration system (208) can be open loop or closed loop, and a precool loop will typically be closed loop. Equipment and procedures are disclosed for bringing the system to the desired operational state, for controlling the operation by controlling refrigerant flow rate, for performing safety checks, and for achieving safe shutdown.
CA002517747A 2000-08-09 2001-07-18 Control system for cryosurgery Expired - Fee Related CA2517747C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/635,108 US6471694B1 (en) 2000-08-09 2000-08-09 Control system for cryosurgery
US09/635,108 2000-08-09
CA002418893A CA2418893C (en) 2000-08-09 2001-07-18 Control system for cryosurgery

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002418893A Division CA2418893C (en) 2000-08-09 2001-07-18 Control system for cryosurgery

Publications (2)

Publication Number Publication Date
CA2517747A1 true CA2517747A1 (en) 2002-02-14
CA2517747C CA2517747C (en) 2007-05-22

Family

ID=24546479

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002517747A Expired - Fee Related CA2517747C (en) 2000-08-09 2001-07-18 Control system for cryosurgery
CA002418893A Expired - Fee Related CA2418893C (en) 2000-08-09 2001-07-18 Control system for cryosurgery
CA002516656A Expired - Fee Related CA2516656C (en) 2000-08-09 2001-07-18 Control system for cryosurgery

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA002418893A Expired - Fee Related CA2418893C (en) 2000-08-09 2001-07-18 Control system for cryosurgery
CA002516656A Expired - Fee Related CA2516656C (en) 2000-08-09 2001-07-18 Control system for cryosurgery

Country Status (6)

Country Link
US (2) US6471694B1 (en)
EP (1) EP1307155A4 (en)
JP (1) JP2004505664A (en)
AU (2) AU8291801A (en)
CA (3) CA2517747C (en)
WO (1) WO2002011638A1 (en)

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CA2516656C (en) 2007-07-24
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CA2517747C (en) 2007-05-22
WO2002011638A9 (en) 2003-04-03
CA2418893A1 (en) 2002-02-14
EP1307155A4 (en) 2006-04-12
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JP2004505664A (en) 2004-02-26
AU2001282918B2 (en) 2005-09-15

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