AU7549687A - Precision laser system useful for ophthalmic surgery - Google Patents

Precision laser system useful for ophthalmic surgery

Info

Publication number
AU7549687A
AU7549687A AU75496/87A AU7549687A AU7549687A AU 7549687 A AU7549687 A AU 7549687A AU 75496/87 A AU75496/87 A AU 75496/87A AU 7549687 A AU7549687 A AU 7549687A AU 7549687 A AU7549687 A AU 7549687A
Authority
AU
Australia
Prior art keywords
laser system
ophthalmic surgery
system useful
precision laser
precision
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.)
Abandoned
Application number
AU75496/87A
Inventor
Pay Hung Chiu
Alan Maurice Frank
Horace Alfred Sklar
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.)
Automated Laser Systems Inc
Original Assignee
AUTOMATED LASER 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 AUTOMATED LASER SYSTEMS Inc filed Critical AUTOMATED LASER SYSTEMS Inc
Publication of AU7549687A publication Critical patent/AU7549687A/en
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21BFUSION REACTORS
    • G21B1/00Thermonuclear fusion reactors
    • G21B1/11Details
    • G21B1/23Optical systems, e.g. for irradiating targets, for heating plasma or for plasma diagnostics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F9/00802Methods or devices for eye surgery using laser for photoablation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F9/00821Methods or devices for eye surgery using laser for coagulation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F9/00825Methods or devices for eye surgery using laser for photodisruption
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0057Temporal shaping, e.g. pulse compression, frequency chirping
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/23Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2358Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media comprising dyes as the active medium
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20Surgical 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
    • A61B18/22Surgical 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
    • A61B18/26Surgical 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 for producing a shock wave, e.g. laser lithotripsy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00842Permanent Structural Change [PSC] in index of refraction; Limit between ablation and plasma ignition
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00853Laser thermal keratoplasty or radial keratotomy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00861Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/00863Retina
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00861Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/00872Cornea
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00861Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/00874Vitreous
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00885Methods or devices for eye surgery using laser for treating a particular disease
    • A61F2009/00887Cataract
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/23Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2308Amplifier arrangements, e.g. MOPA
    • H01S3/2316Cascaded amplifiers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/10Nuclear fusion reactors

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Lasers (AREA)
  • Laser Surgery Devices (AREA)
AU75496/87A 1986-05-19 1987-05-04 Precision laser system useful for ophthalmic surgery Abandoned AU7549687A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86471986A 1986-05-19 1986-05-19
US864719 1986-05-19

Publications (1)

Publication Number Publication Date
AU7549687A true AU7549687A (en) 1987-12-22

Family

ID=25343911

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75496/87A Abandoned AU7549687A (en) 1986-05-19 1987-05-04 Precision laser system useful for ophthalmic surgery

Country Status (5)

Country Link
EP (1) EP0305405A4 (en)
JP (1) JPH01502562A (en)
AU (1) AU7549687A (en)
IL (1) IL82525A0 (en)
WO (1) WO1987007165A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264648B1 (en) * 1985-07-29 2001-07-24 Bausch & Lomb Incorporated Corneal curvature modification via internal ablation
GB2228800A (en) * 1988-01-29 1990-09-05 Mezotraslevoj Nt Komplex Mikro Device for surgical treatment of ametropia
US4907586A (en) * 1988-03-31 1990-03-13 Intelligent Surgical Lasers Method for reshaping the eye
US5425727A (en) * 1988-04-01 1995-06-20 Koziol; Jeffrey E. Beam delivery system and method for corneal surgery
US5364388A (en) * 1988-04-01 1994-11-15 Koziol Jeffrey E Beam delivery system for corneal surgery
US5074859A (en) * 1990-01-05 1991-12-24 Koziol Jeffrey E Beam delivery system for corneal surgery
US5098426A (en) * 1989-02-06 1992-03-24 Phoenix Laser Systems, Inc. Method and apparatus for precision laser surgery
FR2680677A1 (en) * 1991-09-03 1993-03-05 Gaillard Georges Ophthalmological surgical apparatus
US6325792B1 (en) * 1991-11-06 2001-12-04 Casimir A. Swinger Ophthalmic surgical laser and method
US5246435A (en) * 1992-02-25 1993-09-21 Intelligent Surgical Lasers Method for removing cataractous material
WO1994009849A1 (en) * 1992-10-26 1994-05-11 Swinger Casimir A Method of performing ophthalmic surgery
DE19940712A1 (en) * 1999-08-26 2001-03-01 Aesculap Meditec Gmbh Method and device for treating opacities and / or hardening of an unopened eye
JP3628250B2 (en) 2000-11-17 2005-03-09 株式会社東芝 Registration / authentication method used in a wireless communication system
ES2444373T3 (en) * 2006-11-10 2014-02-24 Lars Michael Larsen Apparatus for non-disturbing or minimally disturbing photomanipulation of one eye
US10543123B2 (en) 2008-04-28 2020-01-28 Joseph Neev Devices and methods for generation of subsurface micro-disruptions for opthalmic surgery and opthalmic applications
JP6046160B2 (en) 2011-12-02 2016-12-14 アキュフォーカス・インコーポレーテッド Ophthalmic mask with selective spectral transmission
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904672A (en) * 1956-04-10 1959-09-15 Albert C Migeot Fog light convertor for headlights
US3783874A (en) * 1963-10-23 1974-01-08 American Optical Corp Method and apparatus for effecting photo-coagulation
US3657554A (en) * 1969-06-30 1972-04-18 Ibm Super-radiant short pulse laser
US3889208A (en) * 1973-12-26 1975-06-10 Avco Everett Res Lab Inc Superfluorescent laser with improved beam divergence and spacial brightness
DE2557926A1 (en) * 1975-12-22 1977-06-30 Durst Paul J Optical wavelength varying device - uses fluid in transparent envelope of variable thickness with sides adjustable by pressure
US4059759A (en) * 1976-05-25 1977-11-22 The United States Of America As Represented By The United States Energy Research And Development Administration Passive and active pulse stacking scheme for pulse shaping
US4200846A (en) * 1977-09-29 1980-04-29 The United States Of America As Represented By The United States Department Of Energy Efficient laser amplifier using sequential pulses of different wavelengths
FR2442622A1 (en) * 1978-06-08 1980-06-27 Aron Rosa Daniele OPHTHALMOLOGICAL SURGERY APPARATUS
DE2900728A1 (en) * 1979-01-10 1980-07-24 Max Planck Gesellschaft METHOD AND DEVICE FOR GENERATING ULTRA-SHORT LASER IMPULSES
DE3331586A1 (en) * 1983-09-01 1985-03-28 Fa. Carl Zeiss, 7920 Heidenheim OPHTHALMOLOGICAL COMBINATION DEVICE FOR DIAGNOSIS AND THERAPY
DE3342531A1 (en) * 1983-11-24 1985-06-05 Max Planck Gesellschaft METHOD AND DEVICE FOR GENERATING SHORT-LASTING, INTENSIVE IMPULSES OF ELECTROMAGNETIC RADIATION IN THE WAVELENGTH RANGE UNDER ABOUT 100 NM
US4660932A (en) * 1984-07-13 1987-04-28 United Technologies Corporation Optical splitter for dynamic range enhancement of optical multichannel detectors
US4643186A (en) * 1985-10-30 1987-02-17 Rca Corporation Percutaneous transluminal microwave catheter angioplasty

Also Published As

Publication number Publication date
WO1987007165A1 (en) 1987-12-03
JPH01502562A (en) 1989-09-07
EP0305405A4 (en) 1990-02-20
EP0305405A1 (en) 1989-03-08
IL82525A0 (en) 1987-11-30

Similar Documents

Publication Publication Date Title
GB2149142B (en) Optical system for surgical ophthalmic laser instrument
GB2150315B (en) Laser ophthalmic surgical system
AU7675787A (en) Laser alignment system
AU4452089A (en) Multiwavelength medical laser system
ZA875690B (en) Apparatus for performing ophthalmic laser surgery
AU6190886A (en) Intraocular surgical instrument
AU2630188A (en) 3-dimensional laser beam guidance system
AU1805688A (en) Optical representation of surgical operations
AU7549687A (en) Precision laser system useful for ophthalmic surgery
AU5220190A (en) Preservative system for ophthalmic formulations
AU564020B2 (en) Microsurgical laser
AU2220488A (en) Ophthalmic lenses
AU550492B2 (en) Laser scalpel
EP0423431A3 (en) Surgical laser
EP0269122A3 (en) Laser optical system
AU591861B2 (en) Laser beam injecting system
AU7684387A (en) Laser beam machining device
EP0118530A4 (en) Instrument for ophthalmic laser surgery.
AU9083491A (en) Laser surgical probe
AU7236887A (en) Laser surgery system
AU8128591A (en) Optical system for measuring human cornea
GB8417355D0 (en) Laser ophthalmic surgical system
AU583981B2 (en) Cr-doped scandium borate laser
AU8957391A (en) Dental laser system
AU4809590A (en) Single axis/angled beam laser catheter