WO2002056938A3 - System and method employing indwelling rf catheter for systemic patient warming by application of dielectric heating - Google Patents

System and method employing indwelling rf catheter for systemic patient warming by application of dielectric heating Download PDF

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Publication number
WO2002056938A3
WO2002056938A3 PCT/US2002/001316 US0201316W WO02056938A3 WO 2002056938 A3 WO2002056938 A3 WO 2002056938A3 US 0201316 W US0201316 W US 0201316W WO 02056938 A3 WO02056938 A3 WO 02056938A3
Authority
WO
WIPO (PCT)
Prior art keywords
catheter
indwelling
blood
dielectric heating
application
Prior art date
Application number
PCT/US2002/001316
Other languages
French (fr)
Other versions
WO2002056938A2 (en
Inventor
Mark Whitebook
Blair Walker
Scott Evans
Lynn Shimada
Original Assignee
Alsius Corp
Mark Whitebook
Blair Walker
Scott Evans
Lynn Shimada
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 Alsius Corp, Mark Whitebook, Blair Walker, Scott Evans, Lynn Shimada filed Critical Alsius Corp
Priority to AU2002235395A priority Critical patent/AU2002235395A1/en
Publication of WO2002056938A2 publication Critical patent/WO2002056938A2/en
Publication of WO2002056938A3 publication Critical patent/WO2002056938A3/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0017Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/12Devices for heating or cooling internal body cavities
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1492Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017Electrical control of surgical instruments
    • A61B2017/00022Sensing or detecting at the treatment site
    • A61B2017/00084Temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/12Devices for heating or cooling internal body cavities
    • A61F2007/126Devices for heating or cooling internal body cavities for invasive application, e.g. for introducing into blood vessels

Abstract

An indwelling RF catheter (14) achieves warming of patients by dielectric heating of blood or other bodily fluids. In one example, the catheter is deployed in a suitable blood vessel, such as the inferior vena cava. The catheter design includes an emitter structure (208, 210) electrically coupled to an RF generator (106), which provides a source of RF power. The emitter structure, distally located upon the catheter, administers electromagnetic radiation to the blood within the patient, thereby creating heat due to the dielectric qualities of blood. As blood heated by the indwelling RF catheter courses through the patient's body, it is systemically warmed, raising the body core temperature.
PCT/US2002/001316 2001-01-16 2002-01-16 System and method employing indwelling rf catheter for systemic patient warming by application of dielectric heating WO2002056938A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002235395A AU2002235395A1 (en) 2001-01-16 2002-01-16 System and method employing indwelling rf catheter for systemic patient warming by application of dielectric heating

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/761,069 2001-01-16
US09/761,069 US6529775B2 (en) 2001-01-16 2001-01-16 System and method employing indwelling RF catheter for systemic patient warming by application of dielectric heating

Publications (2)

Publication Number Publication Date
WO2002056938A2 WO2002056938A2 (en) 2002-07-25
WO2002056938A3 true WO2002056938A3 (en) 2002-10-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/001316 WO2002056938A2 (en) 2001-01-16 2002-01-16 System and method employing indwelling rf catheter for systemic patient warming by application of dielectric heating

Country Status (3)

Country Link
US (1) US6529775B2 (en)
AU (1) AU2002235395A1 (en)
WO (1) WO2002056938A2 (en)

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WO2002056938A2 (en) 2002-07-25
AU2002235395A1 (en) 2002-07-30
US6529775B2 (en) 2003-03-04

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