CA2158739A1 - Laser illuminator - Google Patents

Laser illuminator

Info

Publication number
CA2158739A1
CA2158739A1 CA002158739A CA2158739A CA2158739A1 CA 2158739 A1 CA2158739 A1 CA 2158739A1 CA 002158739 A CA002158739 A CA 002158739A CA 2158739 A CA2158739 A CA 2158739A CA 2158739 A1 CA2158739 A1 CA 2158739A1
Authority
CA
Canada
Prior art keywords
radiator
expandable
reflectivity
level
differential optical
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
CA002158739A
Other languages
French (fr)
Other versions
CA2158739C (en
Inventor
R. Rox Anderson
Nayantara Bhatta
Scott Prahl
Peter J. Dwyer
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.)
General Hospital Corp
Original Assignee
R. Rox Anderson
Nayantara Bhatta
Scott Prahl
Peter J. Dwyer
The General Hospital Corporation
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 R. Rox Anderson, Nayantara Bhatta, Scott Prahl, Peter J. Dwyer, The General Hospital Corporation filed Critical R. Rox Anderson
Publication of CA2158739A1 publication Critical patent/CA2158739A1/en
Application granted granted Critical
Publication of CA2158739C publication Critical patent/CA2158739C/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
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0601—Apparatus for use inside the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/062—Photodynamic therapy, i.e. excitation of an agent
    • 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
    • A61B2018/2255—Optical elements at the distal end of probe tips
    • A61B2018/2261—Optical elements at the distal end of probe tips with scattering, diffusion or dispersion of light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0601—Apparatus for use inside the body
    • A61N5/0603—Apparatus for use inside the body for treatment of body cavities
    • A61N2005/0611—Vagina

Abstract

An illuminator including a differential optical radiator (10) and a laser fiber (12) disposed within the differential optical radiator. The differential optical radiator includes a first region that has a first. level of reflectivity and a first level of transmissivity and a second region that has a second, higher level of reflectivity and a second, lower level of transmissivity. The first and second regions are positioned such and their reflectivities and transmissivities are chosen such that the radiator produces a substantially uniform pattern of illumination from the first and second regions. In another embodiment, the illuminator includes an expandable radiator (38) and a laser fiber (34) disposed within the expandable radiator. The reflectivity of the expandable radiator is such that the illumination at the outer surface of the expandable radiator is substantially uniform.
CA002158739A 1992-03-20 1993-03-22 Laser illuminator Expired - Fee Related CA2158739C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85494292A 1992-03-20 1992-03-20
US07/854,942 1992-03-20
PCT/US1993/002611 WO1993018715A1 (en) 1992-03-20 1993-03-22 Laser illuminator

Publications (2)

Publication Number Publication Date
CA2158739A1 true CA2158739A1 (en) 1993-09-30
CA2158739C CA2158739C (en) 2004-09-21

Family

ID=25319945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002158739A Expired - Fee Related CA2158739C (en) 1992-03-20 1993-03-22 Laser illuminator

Country Status (4)

Country Link
US (2) US5527308A (en)
AU (1) AU3927993A (en)
CA (1) CA2158739C (en)
WO (1) WO1993018715A1 (en)

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US7703458B2 (en) * 2003-02-21 2010-04-27 Cutera, Inc. Methods and devices for non-ablative laser treatment of dermatologic conditions
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US7763058B2 (en) * 2004-11-20 2010-07-27 Dick Sterenborg Device and method for photodynamic therapy of the nasopharyngeal cavity
AU2005305606B2 (en) * 2004-11-20 2011-09-01 Erasmus University Medical Center Rotterdam Device and method for photodynamic therapy of the nasopharyngeal cavity
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Also Published As

Publication number Publication date
WO1993018715A1 (en) 1993-09-30
AU3927993A (en) 1993-10-21
CA2158739C (en) 2004-09-21
US5527308A (en) 1996-06-18
US5814041A (en) 1998-09-29

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