CA2219301A1 - Microwave antenna catheter - Google Patents

Microwave antenna catheter

Info

Publication number
CA2219301A1
CA2219301A1 CA002219301A CA2219301A CA2219301A1 CA 2219301 A1 CA2219301 A1 CA 2219301A1 CA 002219301 A CA002219301 A CA 002219301A CA 2219301 A CA2219301 A CA 2219301A CA 2219301 A1 CA2219301 A1 CA 2219301A1
Authority
CA
Canada
Prior art keywords
microwave antenna
antenna catheter
catheter
mhz
matched
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
CA002219301A
Other languages
French (fr)
Other versions
CA2219301C (en
Inventor
Timothy J. Lenihan
Kenneth L. Carr
Mark Guetersloh
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.)
Arrow International Investment Corp
Microwave Medical Systems Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2219301A1 publication Critical patent/CA2219301A1/en
Application granted granted Critical
Publication of CA2219301C publication Critical patent/CA2219301C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61B18/18—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
    • 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
    • A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves

Abstract

A helical antenna, which is matched to the desired microwave frequency of 915 MHz, comprises a helix provided at the end of a coaxial cable (10) and having a linear length which is in the range of 74 mm to 112 mm or a non-zero integer multiple thereof, and which delivers microwave energy in an optimal heating pattern with little reflected power.
CA002219301A 1995-05-15 1996-02-06 Microwave antenna catheter Expired - Fee Related CA2219301C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/440,716 1995-05-15
US08/440,716 US5683382A (en) 1995-05-15 1995-05-15 Microwave antenna catheter
PCT/US1996/001390 WO1996036397A1 (en) 1995-05-15 1996-02-06 Microwave antenna catheter

Publications (2)

Publication Number Publication Date
CA2219301A1 true CA2219301A1 (en) 1996-11-21
CA2219301C CA2219301C (en) 2001-08-07

Family

ID=23749887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002219301A Expired - Fee Related CA2219301C (en) 1995-05-15 1996-02-06 Microwave antenna catheter

Country Status (5)

Country Link
US (1) US5683382A (en)
EP (1) EP0825890A4 (en)
JP (1) JPH11505157A (en)
CA (1) CA2219301C (en)
WO (1) WO1996036397A1 (en)

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Also Published As

Publication number Publication date
EP0825890A1 (en) 1998-03-04
US5683382A (en) 1997-11-04
WO1996036397A1 (en) 1996-11-21
CA2219301C (en) 2001-08-07
EP0825890A4 (en) 2001-04-18
JPH11505157A (en) 1999-05-18

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Legal Events

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Effective date: 20110207