WO2004097356A3 - System, method and apparatus for evaluating tissue temperature - Google Patents

System, method and apparatus for evaluating tissue temperature Download PDF

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Publication number
WO2004097356A3
WO2004097356A3 PCT/US2004/012190 US2004012190W WO2004097356A3 WO 2004097356 A3 WO2004097356 A3 WO 2004097356A3 US 2004012190 W US2004012190 W US 2004012190W WO 2004097356 A3 WO2004097356 A3 WO 2004097356A3
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
monitoring
unique
lower threshold
implants
Prior art date
Application number
PCT/US2004/012190
Other languages
French (fr)
Other versions
WO2004097356A2 (en
Inventor
Philip E Eggers
John L Ridihalgh
Mark Mayerchak
Gary Altman
Original Assignee
Apsara Medical Corp
Philip E Eggers
John L Ridihalgh
Mark Mayerchak
Gary Altman
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 Apsara Medical Corp, Philip E Eggers, John L Ridihalgh, Mark Mayerchak, Gary Altman filed Critical Apsara Medical Corp
Priority to EP04760295A priority Critical patent/EP1618359A2/en
Publication of WO2004097356A2 publication Critical patent/WO2004097356A2/en
Publication of WO2004097356A3 publication Critical patent/WO2004097356A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/36—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils
    • G01K7/38—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using magnetic elements, e.g. magnets, coils the variations of temperature influencing the magnetic permeability
    • 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
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/12—Devices for heating or cooling internal body cavities
    • 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
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • 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
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0001—Means for transferring electromagnetic energy to implants

Abstract

Method, system and apparatus for monitoring target tissue temperatures wherein temperature sensors are configured as passive resonant circuits each with a unique resonating signature at monitoring temperatures extending below a select temperature setpoint. The resonant circuits (90) are configured with an inductor component formed of winding (94) about a ferrite core (92) having a Curie temperature characteristic corresponding with a desired temperature setpoint. By selecting inductor winding turns and capacitance values, unique resonant center frequencies are detectable. Temperature monitoring can be carried out with implants at lower threshold and upper limit temperature responses. Additionally, the lower threshold sensors may be combined with auto-regulated heater implants (730) having Curie transitions at upper temperature limits.
PCT/US2004/012190 2003-04-28 2004-04-20 System, method and apparatus for evaluating tissue temperature WO2004097356A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04760295A EP1618359A2 (en) 2003-04-28 2004-04-20 System, method and apparatus for evaluating tissue temperature

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US46622503P 2003-04-28 2003-04-28
US60/466,225 2003-04-28
US10/733,970 2003-12-11
US10/733,970 US7048756B2 (en) 2002-01-18 2003-12-11 System, method and apparatus for evaluating tissue temperature

Publications (2)

Publication Number Publication Date
WO2004097356A2 WO2004097356A2 (en) 2004-11-11
WO2004097356A3 true WO2004097356A3 (en) 2006-02-23

Family

ID=33423598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/012190 WO2004097356A2 (en) 2003-04-28 2004-04-20 System, method and apparatus for evaluating tissue temperature

Country Status (3)

Country Link
US (3) US7048756B2 (en)
EP (1) EP1618359A2 (en)
WO (1) WO2004097356A2 (en)

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US7695505B2 (en) 2010-04-13
WO2004097356A2 (en) 2004-11-11
US20060030912A1 (en) 2006-02-09
EP1618359A2 (en) 2006-01-25
US20060020312A1 (en) 2006-01-26
US7684871B2 (en) 2010-03-23
US7048756B2 (en) 2006-05-23
US20040122494A1 (en) 2004-06-24

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