CA2060145A1 - Heart-synchronized pulsed laser system - Google Patents

Heart-synchronized pulsed laser system

Info

Publication number
CA2060145A1
CA2060145A1 CA2060145A CA2060145A CA2060145A1 CA 2060145 A1 CA2060145 A1 CA 2060145A1 CA 2060145 A CA2060145 A CA 2060145A CA 2060145 A CA2060145 A CA 2060145A CA 2060145 A1 CA2060145 A1 CA 2060145A1
Authority
CA
Canada
Prior art keywords
trigger pulse
heart
laser
pulsed laser
laser system
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
CA2060145A
Other languages
French (fr)
Other versions
CA2060145C (en
Inventor
Robert I. Rudko
Stephen J. Linhares
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.)
PLC Medical System Inc
Original Assignee
LASER ENGINEERING 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25674938&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2060145(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to US07/586,951 priority Critical patent/US5125926A/en
Application filed by LASER ENGINEERING Inc filed Critical LASER ENGINEERING Inc
Priority to CA002060145A priority patent/CA2060145C/en
Priority to EP92400228A priority patent/EP0553576B1/en
Priority to DE69210007T priority patent/DE69210007T2/en
Publication of CA2060145A1 publication Critical patent/CA2060145A1/en
Application granted granted Critical
Publication of CA2060145C publication Critical patent/CA2060145C/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
    • 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
    • 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
    • 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
    • A61B2017/00973—Surgical instruments, devices or methods, e.g. tourniquets pedal-operated
    • 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
    • A61B2018/00636—Sensing and controlling the application of energy
    • 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
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00666—Sensing and controlling the application of energy using a threshold value

Abstract

A heart-synchronized pulsed laser system includes a laser; means for sensing the contraction and expansion of a beating heart to be synchronized with the laser; means, responsive to the means for sensing, for generating a trigger pulse; means for positioning the leading edge of the trigger pulse during the contraction and expansion cycle of the heartbeat; means for defining the width of the trigger pulse to occur during the heartbeat cycle; and means responsive to the trigger pulse for firing the laser to strike the beating heart at the time indicated by the trigger pulse position and for the period indicated by the width of the trigger pulse.
CA002060145A 1990-09-24 1992-01-28 Heart-synchronized pulsed laser system Expired - Fee Related CA2060145C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US07/586,951 US5125926A (en) 1990-09-24 1990-09-24 Heart-synchronized pulsed laser system
CA002060145A CA2060145C (en) 1990-09-24 1992-01-28 Heart-synchronized pulsed laser system
EP92400228A EP0553576B1 (en) 1990-09-24 1992-01-29 Heart-synchronized pulsed laser system
DE69210007T DE69210007T2 (en) 1990-09-24 1992-01-29 Pulse laser system synchronized with the heart

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/586,951 US5125926A (en) 1990-09-24 1990-09-24 Heart-synchronized pulsed laser system
CA002060145A CA2060145C (en) 1990-09-24 1992-01-28 Heart-synchronized pulsed laser system

Publications (2)

Publication Number Publication Date
CA2060145A1 true CA2060145A1 (en) 1993-07-29
CA2060145C CA2060145C (en) 1997-04-01

Family

ID=25674938

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002060145A Expired - Fee Related CA2060145C (en) 1990-09-24 1992-01-28 Heart-synchronized pulsed laser system

Country Status (4)

Country Link
US (1) US5125926A (en)
EP (1) EP0553576B1 (en)
CA (1) CA2060145C (en)
DE (1) DE69210007T2 (en)

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Also Published As

Publication number Publication date
CA2060145C (en) 1997-04-01
US5125926A (en) 1992-06-30
DE69210007T2 (en) 1996-12-19
EP0553576B1 (en) 1996-04-17
DE69210007D1 (en) 1996-05-23
EP0553576A1 (en) 1993-08-04

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