CA2172051A1 - Laser extractor for an implanted object - Google Patents

Laser extractor for an implanted object

Info

Publication number
CA2172051A1
CA2172051A1 CA2172051A CA2172051A CA2172051A1 CA 2172051 A1 CA2172051 A1 CA 2172051A1 CA 2172051 A CA2172051 A CA 2172051A CA 2172051 A CA2172051 A CA 2172051A CA 2172051 A1 CA2172051 A1 CA 2172051A1
Authority
CA
Canada
Prior art keywords
lead
catheter
scar tissue
implanted object
fibrous scar
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
CA2172051A
Other languages
French (fr)
Other versions
CA2172051C (en
Inventor
Dale A. Wahlstrom
Terrell M. Williams
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.)
Medtronic Inc
Original Assignee
Dale A. Wahlstrom
Terrell M. Williams
Medtronic, 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 Dale A. Wahlstrom, Terrell M. Williams, Medtronic, Inc. filed Critical Dale A. Wahlstrom
Publication of CA2172051A1 publication Critical patent/CA2172051A1/en
Application granted granted Critical
Publication of CA2172051C publication Critical patent/CA2172051C/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
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A61N1/057—Anchoring means; Means for fixing the head inside the heart
    • 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
    • A61B18/24—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 with a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/50—Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00694—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body
    • A61B2017/00703—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body correcting for movement of heart, e.g. ECG-triggered
    • 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
    • A61B2017/22038—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 a guide wire
    • 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
    • A61B2017/22072—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 instrument channel, e.g. for replacing one instrument by the other
    • 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
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A61N1/057—Anchoring means; Means for fixing the head inside the heart
    • A61N2001/0578—Anchoring means; Means for fixing the head inside the heart having means for removal or extraction

Abstract

A lead extraction device which utilizes laser (8) energy to separate an implanted object, such as a pacemaker lead (2), from fibrous scar tissue and thereby permit the implanted object to be extracted from a body. The extraction device features a catheter (1) having a central lumen (31). The lumen is preferably dimensioned so a pacemaker lead will fit within. The catheter is thereby guided by the lead.
The catheter has at least one optical fiber (23) to emit laser energy from the distal end and thereby separate the lead from fibrous scar tissue.
Disclosed embodiments include catheters which emit light parallel as well as inwardly perpendicular to the catheter and the lead. Through such catheters the lead may be separated along its length, as well as separated at its distal end from fibrous scar tissue, thereby permitting the lead to be readily extracted from the body.
CA002172051A 1993-10-01 1994-10-03 Laser extractor for an implanted object Expired - Fee Related CA2172051C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/131,055 1993-10-01
US08/131,055 US5423806A (en) 1993-10-01 1993-10-01 Laser extractor for an implanted object
PCT/US1994/011146 WO1995009575A1 (en) 1993-10-01 1994-10-03 Laser extractor for an implanted object

Publications (2)

Publication Number Publication Date
CA2172051A1 true CA2172051A1 (en) 1995-04-13
CA2172051C CA2172051C (en) 2000-08-08

Family

ID=22447646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002172051A Expired - Fee Related CA2172051C (en) 1993-10-01 1994-10-03 Laser extractor for an implanted object

Country Status (7)

Country Link
US (2) US5423806A (en)
EP (1) EP0721317B1 (en)
JP (1) JP3450010B2 (en)
AU (1) AU683502B2 (en)
CA (1) CA2172051C (en)
DE (1) DE69430311T2 (en)
WO (1) WO1995009575A1 (en)

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