WO2004058328A3 - Device and method for delivery of long wavelength laser energy to a tissue site - Google Patents

Device and method for delivery of long wavelength laser energy to a tissue site Download PDF

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Publication number
WO2004058328A3
WO2004058328A3 PCT/US2003/041095 US0341095W WO2004058328A3 WO 2004058328 A3 WO2004058328 A3 WO 2004058328A3 US 0341095 W US0341095 W US 0341095W WO 2004058328 A3 WO2004058328 A3 WO 2004058328A3
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
laser energy
distal end
end portion
long wavelength
Prior art date
Application number
PCT/US2003/041095
Other languages
French (fr)
Other versions
WO2004058328A2 (en
Inventor
Marvin P Loeb
Original Assignee
Trimedyne Inc
Marvin P Loeb
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 Trimedyne Inc, Marvin P Loeb filed Critical Trimedyne Inc
Priority to US10/539,893 priority Critical patent/US7359601B2/en
Priority to DE10393938T priority patent/DE10393938T5/en
Priority to AU2003299857A priority patent/AU2003299857A1/en
Publication of WO2004058328A2 publication Critical patent/WO2004058328A2/en
Publication of WO2004058328A3 publication Critical patent/WO2004058328A3/en
Priority to IL169270A priority patent/IL169270A/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
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—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 laser
    • A61B18/22—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 laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • 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
    • A61B18/20—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 laser
    • A61B18/201—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 laser with beam delivery through a hollow tube, e.g. forming an articulated arm ; Hand-pieces therefor
    • 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
    • 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
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • 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
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00625—Vaporization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A61B2218/006—Irrigation for smoke evacuation

Abstract

A laser energy delivery device is provided that is suitable for irradiating a body tissue with relatively long wavelength laser energy in the presence of an aqueous liquid without significant absorption of the laser energy by the liquid. The device includes an elongate hollow sheath that has an open aperture at its distal end portion and closed at its proximal end, a laser energy conduit such as an optical fiber or hollow wave guide, within the sheath, the distal end of the conduit being disposed near the open aperture at the distal end portion of the sheath, and the proximal end of the conduit being adapted for connection to a source of long wavelength laser energy. The sheath also includes an inlet port, spaced from the proximal end of the sheath, and adapted to receive and deliver a biologically compatible gas through the sheath to a body tissue site in contact with the open distal end of the sheath. In use, the open aperture at the distal end portion of the sheath is positioned in contact with a body tissue site. Gas, such as carbon dioxide, infused through the sheath displaces an aqueous liquid from the region between the distal end portion of the sheath and the tissue. Laser energy emitted from the distal end portion of the conduit passes through the substantially liquid-free region at the distal end of the sheath and impinges on the tissueto be irradiated. The laser energy can be used to ablate, vaporize, coagulate or shrink tissue at the target zone without interference from aqueous liquids, which tend to absorb relatively large amounts of long wavelength laser energy and reduce the efficiency of tissue ablation.
PCT/US2003/041095 2002-12-20 2003-12-19 Device and method for delivery of long wavelength laser energy to a tissue site WO2004058328A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/539,893 US7359601B2 (en) 2002-12-20 2003-12-19 Device and method for delivery of long wavelength laser energy to a tissue site
DE10393938T DE10393938T5 (en) 2002-12-20 2003-12-19 Apparatus and method for delivering long wavelength laser energy to a tissue site
AU2003299857A AU2003299857A1 (en) 2002-12-20 2003-12-19 Device and method for delivery of long wavelength laser energy to a tissue site
IL169270A IL169270A (en) 2002-12-20 2005-06-19 Device and method for delivery of long wavelength laser energy to a tissue site

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/324,897 US6953458B2 (en) 2002-12-20 2002-12-20 Device and method for delivery of long wavelength laser energy to a tissue site
US10/324,897 2002-12-20

Publications (2)

Publication Number Publication Date
WO2004058328A2 WO2004058328A2 (en) 2004-07-15
WO2004058328A3 true WO2004058328A3 (en) 2004-10-07

Family

ID=32593589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/041095 WO2004058328A2 (en) 2002-12-20 2003-12-19 Device and method for delivery of long wavelength laser energy to a tissue site

Country Status (5)

Country Link
US (2) US6953458B2 (en)
AU (1) AU2003299857A1 (en)
DE (1) DE10393938T5 (en)
IL (1) IL169270A (en)
WO (1) WO2004058328A2 (en)

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Also Published As

Publication number Publication date
WO2004058328A2 (en) 2004-07-15
AU2003299857A8 (en) 2004-07-22
IL169270A0 (en) 2007-07-04
US7359601B2 (en) 2008-04-15
US6953458B2 (en) 2005-10-11
IL169270A (en) 2010-05-31
AU2003299857A1 (en) 2004-07-22
US20040120668A1 (en) 2004-06-24
DE10393938T5 (en) 2006-07-27
US20060078265A1 (en) 2006-04-13

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