WO2004019809A3 - Conductive interstitial thermal therapy device - Google Patents

Conductive interstitial thermal therapy device Download PDF

Info

Publication number
WO2004019809A3
WO2004019809A3 PCT/US2003/020474 US0320474W WO2004019809A3 WO 2004019809 A3 WO2004019809 A3 WO 2004019809A3 US 0320474 W US0320474 W US 0320474W WO 2004019809 A3 WO2004019809 A3 WO 2004019809A3
Authority
WO
WIPO (PCT)
Prior art keywords
tip
conductive elements
thermally
conductive
blades
Prior art date
Application number
PCT/US2003/020474
Other languages
French (fr)
Other versions
WO2004019809A2 (en
Inventor
Gal Shafirstein
Scott L Ferguson
Milton Waner
Original Assignee
Univ Arkansas
Gal Shafirstein
Scott L Ferguson
Milton Waner
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 Univ Arkansas, Gal Shafirstein, Scott L Ferguson, Milton Waner filed Critical Univ Arkansas
Priority to AU2003293153A priority Critical patent/AU2003293153A1/en
Publication of WO2004019809A2 publication Critical patent/WO2004019809A2/en
Publication of WO2004019809A3 publication Critical patent/WO2004019809A3/en

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
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A61B18/082—Probes or electrodes therefor
    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect

Abstract

An apparatus and method for thermally destroying tumors in which heat generated by a laser (50) or by an electrical resistance heating element (13) is conducted to the target tissue. Computerized scanning is used to optimize the geometry of a thermal probe. A probe has a thermally conductive tip (10) heated by a remote laser or by electrical resistance heating. The tip may be mounted on the end of a wave guide fiber (51) for transmitting laser radiation to the tip (10). The tip (10) is coated with a thin layer of biocompatible coating (15) to avoid coagulated tissue sticking to the tip. The tip (10) has one or more thin, thermally-conductive elements which deploy in stages to coagulate the tumor. The conductive elements may be thin wires (16) or blades (30). In one embodiment, the conductive elements are composed of a shape memory material that is folded against the tip (10) at lower temperatures and deploys at selected higher temperatures. In another embodiment, the conductive elements are blades that are deployed mechanically. The tip (10) may be provided with a miniature thermocouple to provide temperature feedback information.
PCT/US2003/020474 2002-08-27 2003-06-27 Conductive interstitial thermal therapy device WO2004019809A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003293153A AU2003293153A1 (en) 2002-08-27 2003-06-27 Conductive interstitial thermal therapy device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/228,482 US6780177B2 (en) 2002-08-27 2002-08-27 Conductive interstitial thermal therapy device
US10/228,482 2002-08-27
US10/336,973 2003-01-06
US10/336,973 US6872203B2 (en) 2002-08-27 2003-01-06 Conductive interstitial thermal therapy device

Publications (2)

Publication Number Publication Date
WO2004019809A2 WO2004019809A2 (en) 2004-03-11
WO2004019809A3 true WO2004019809A3 (en) 2009-07-16

Family

ID=34278060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/020474 WO2004019809A2 (en) 2002-08-27 2003-06-27 Conductive interstitial thermal therapy device

Country Status (3)

Country Link
US (3) US6780177B2 (en)
AU (1) AU2003293153A1 (en)
WO (1) WO2004019809A2 (en)

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Also Published As

Publication number Publication date
US6872203B2 (en) 2005-03-29
US6780177B2 (en) 2004-08-24
US7361173B2 (en) 2008-04-22
US20040044336A1 (en) 2004-03-04
US20050119645A1 (en) 2005-06-02
WO2004019809A2 (en) 2004-03-11
US20040044337A1 (en) 2004-03-04
AU2003293153A1 (en) 2004-03-19

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