CA2190237A1 - Apparatus and method for transurethral focussed ultrasound therapy - Google Patents

Apparatus and method for transurethral focussed ultrasound therapy

Info

Publication number
CA2190237A1
CA2190237A1 CA002190237A CA2190237A CA2190237A1 CA 2190237 A1 CA2190237 A1 CA 2190237A1 CA 002190237 A CA002190237 A CA 002190237A CA 2190237 A CA2190237 A CA 2190237A CA 2190237 A1 CA2190237 A1 CA 2190237A1
Authority
CA
Canada
Prior art keywords
diseased tissue
ultrasound energy
produce
tissue
thermotherapeutic
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
CA002190237A
Other languages
French (fr)
Other versions
CA2190237C (en
Inventor
Winfield Scott Andrus
Claude Tihon
Claire Thomas Hovland
Charles S. Desilets
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.)
American Medical Systems LLC
Original Assignee
Winfield Scott Andrus
Claude Tihon
Claire Thomas Hovland
Charles S. Desilets
Schneider (Usa) Inc.
American Medical Systems, Inc.
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 Winfield Scott Andrus, Claude Tihon, Claire Thomas Hovland, Charles S. Desilets, Schneider (Usa) Inc., American Medical Systems, Inc. filed Critical Winfield Scott Andrus
Publication of CA2190237A1 publication Critical patent/CA2190237A1/en
Application granted granted Critical
Publication of CA2190237C publication Critical patent/CA2190237C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N7/02—Localised ultrasound hyperthermia
    • A61N7/022—Localised ultrasound hyperthermia intracavitary
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00274—Prostate operation, e.g. prostatectomy, turp, bhp treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22065—Functions of balloons
    • A61B2017/22069—Immobilising; Stabilising
    • 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
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
    • 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
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00547—Prostate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
    • A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound

Abstract

An apparatus and method for the treatment of diseases of the prostate, including BPH and prostate cancer, utilizing transurethrally applied focussed ultrasound energy to produce hyperthermal and thermotherapeutic effects in diseased tissue are disclosed. A first preferred embodiment of the apparatus relies on visual control; and a second preferred embodiment of the apparatus incorporates an integrated ultrasonic imaging and therapy transducer. The apparatus and method feature the close proximal placement of the ultrasound transducer to the diseased tissue to be treated, resulting in less attenuation of the beam and deposition of a greater fraction of the total emitted ultrasound energy in the selected portion of the diseased tissue. The ultrasoundenergy passes atraumatically through the urethral wall and other tissue not targeted.
At the focal point of the ultrasound energy, substantial heating of diseased tissue to produce hyperthermal effects therein occurs, and even higher thermotherapeutic temperatures are attainable to produce coagulative necrosis of diseased tissue.
CA002190237A 1995-11-15 1996-11-13 Apparatus and method for transurethral focussed ultrasound therapy Expired - Fee Related CA2190237C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/559,749 1995-11-15
US08/559,749 US5895356A (en) 1995-11-15 1995-11-15 Apparatus and method for transurethral focussed ultrasound therapy

Publications (2)

Publication Number Publication Date
CA2190237A1 true CA2190237A1 (en) 1997-05-16
CA2190237C CA2190237C (en) 2001-10-23

Family

ID=24234860

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002190237A Expired - Fee Related CA2190237C (en) 1995-11-15 1996-11-13 Apparatus and method for transurethral focussed ultrasound therapy

Country Status (10)

Country Link
US (1) US5895356A (en)
EP (1) EP0774276B1 (en)
JP (1) JP2863506B2 (en)
KR (1) KR100233352B1 (en)
AT (1) ATE276017T1 (en)
AU (1) AU702507B2 (en)
CA (1) CA2190237C (en)
DE (1) DE69633374T2 (en)
ES (1) ES2224149T3 (en)
TW (1) TW370464B (en)

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