WO1998034212A1 - Device and method for simulating ophthalmic surgery - Google Patents
Device and method for simulating ophthalmic surgery Download PDFInfo
- Publication number
- WO1998034212A1 WO1998034212A1 PCT/US1998/001653 US9801653W WO9834212A1 WO 1998034212 A1 WO1998034212 A1 WO 1998034212A1 US 9801653 W US9801653 W US 9801653W WO 9834212 A1 WO9834212 A1 WO 9834212A1
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- WIPO (PCT)
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- array
- laser beam
- laser
- computer system
- sensing devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
Definitions
- the present invention relates to a device and method for reshaping a corneal surface of an eye for refractive correction by laser ablation, and more particularly to a device and method for simulating the reshaping of the corneal surface.
- Various lasers have been employed for ophthalmic surgery applications including the treatment of various eye disorders such as glaucoma, cataract, myopia, hyperopia, and astigmatism.
- a laser is used to ablate or remove a portion of the corneal surface of an eye in order to reshape the cornea.
- laser refractive surgery is achieved through a plurality of ablated layers, the cumulative affect of the plurality; of ablated layers attempting to remove a portion of the cornea to reshape the cornea to correct the curvature of the eye.
- most laser systems in use require the ophthalmologist to practice the ablation on a piece of plastic or metal.
- the practice piece is completed it is necessary to estimate the corresponding depth of ablation in the cornea by using one or more conversion factors.
- Such conversions or estimates are only approximations and do not completely and accurately determine the depth of ablation. In some situations such estimates are no more than an educated guess that the ablation profile performed on the practice piece will correct an eye disorder in an actual human eye.
- the Excaliber manufactured by LaserSight Technologies a visual profile of the ablated cornea is created. However, with the Excaliber, a test ablation is still performed on a plastic sample and the profile is created through estimated conversion factors.
- a method of simulating ophthalmic surgery comprises the steps of providing a laser for producing a laser beam, providing an array of sensor devices for sensing whether the laser beam has been projected at the array, and providing a computer system operatively connected to the laser and the array, the computer system for actuating the laser, for determining whether the array has sensed the laser beam, and for creating an ablation profile based upon whether the array has sensed the laser beam.
- a principal object of the present invention is to provide an improved device for simulating ophthalmic surgery for correcting a disorder of an eye.
- a further object of the present invention is to provide a device for simulating ophthalmic surgery which can be easily employed with highly reliable results.
- Another object of the present invention is to provide a device for simulating ophthalmic surgery which can simulate the ablation profile of the cornea by directly translating actual laser energy pulses into a three dimensional view of the cornea.
- a still further object of the present invention is to provide a device for simulating ophthalmic surgery which provides an energy profile which accurately predicts an ablation profile of the cornea and a keratometric appearance of an eye to be treated.
- Fig. 1 is a diagrammatic view of a device for simulating ophthalmic surgery constructed according to the present invention
- Fig. 2 is a flow chart of a program utilized to control the operation of the device shown in Fig. 1 ;
- Fig. 3 is a block diagram of a second preferred embodiment of a device for simulating ophthalmic surgery constructed according to the present invention
- Fig. 4 is a diagrammatic view of a third preferred embodiment of a device for simulating ophthalmic surgery having a fiber optic grid;
- Fig. 5 is a perspective view of another fiber optic grid constructed according to the present invention.
- Fig. 6 is a partial cross-sectional view of the fiber optic grid shown in Fig. 5 taken along the plane of line 6-6.
- the device 10 includes a laser 12 which is operable to produce a laser beam 14 which is directed to an array 16.
- a computer system 18 is operatively connected to the laser 12 by electrical wires or leads 20 and to the array 16 via leads 22.
- the energy of the laser beam 14 is measured prior to being directed at the array 16 and this information is stored in the computer system 18. It is assumed that the energy of the laser beam 14 will remain constant, in operation the computer system 18 actuates the laser 12 to produce the laser beam 14 which is directed at the array 16.
- the array 16 includes a grid 24 of sensing elements 26 which sense whether the laser beam 14 has been directed at a particular element 26 in the grid 24 and the duration of time that the laser beam 14 was sensed by the particular element 26.
- the elements 26 may be photovoltaic, galavonometric, or electronic sensors and are arranged to each cover a 1 m ⁇ )2 surface area. For example, when the laser beam 14 strikes the element 26 of the grid 24 a signal is sent over wires 22 to the computer system 18 to indicate that the element 26 sensed the laser beam 14 and the duration of time that the laser beam
- the computer system 18 is able to generate or simulate an ablation profile of the cornea of the eye without having to ablate the cornea or a sample piece such as a piece of plastic or metal. Additionally, the computer system 18 is able to determine if the simulated ablation profile matches a predetermined ablation profile. This allows the device 10 to verify that the simulated ablation profile will successfully correct for an abnormal condition of an eye. Additionally, the computer system 18 is capable of determining the power of the laser beam 14 at each element 26 within the array 16 and the time that the laser beam 14 is sensed by each element 26.
- the computer system 18 can determine the ablation profile and the computer system 18 also creates a three dimensional (3-D) view of the simulated ablation profile.
- the computer system 18 is used to directly translate actual laser energy pulses into a 3-D view of corneal stromal ablation.
- the 3-D view allows the ophthalmologist to predict keratometric changes to the cornea to be treated.
- the 3-D view may also be presented on a monitor (not shown) which is part of the computer system 18.
- the array 16 tests the alignment of the laser beam 14.
- the device 10 shown in Fig. 1 is operable to perform the aforementioned procedure according to a program 100 which may be loaded into the computer system 18.
- An exemplary flow chart of such a program 100 is illustrated in Fig. 2.
- the control of the program 100 begins at a start step 102 and proceeds to a step 104 which determines the final profile to be ablated from the cornea.
- control of the program 100 continues to a step 106 in which the laser 12 is actuated to generate the laser beam 14 which is directed at the array 16.
- signals from the array 16 are sent to the computer system 18 and such signals are stored therein.
- the program 100 then passes to a step 110 in which a simulated profile of the cornea is generated.
- step 112 the computer system 18 compares the final profile with the simulated profile to determine if it matches within a predetermined limit. If it does, the program 100 branches to a step 114 where the program 100 stops. If, at step 112 it is determined that the final profile and the simulated profile do not match, then control of the program transfers to a step 116. In step 116 a re- determined final ablation profile is calculated. Once calculated, control of the program 100 passes to step 106 until the final profile matches the simulated profile in step 112.
- Fig. 3 depicts a scanning type laser system 200 which includes a laser 202 which is operable to produce a pulsed output laser beam 204 which is directed to a scanning device 206.
- the scanning device 206 is operatively connected to a computer system 208 for control thereby, which computer system 208 may be located within the device 200. Such operative connection may be made by way of electrical leads 210.
- the laser 202 is also connected to the computer system 208 via electrical wires 212 with the computer system 208 controlling the laser 202.
- a scanned beam 214 departs from the scanning device 206 and is directed to other optics components 216 which may be utilized for shaping the scanned beam 214.
- a shaped scanned beam 21 8 is directed to a reflecting mirror 220 and a reflected beam 222 is directed onto an array 224.
- the scanning device 206 is operated to control the scanning of the pulsed output laser beam 204 across the array 224.
- the array 224 comprises a grid 226 of sensing elements 228 which are arranged in a rectangular fashion.
- the computer system is connected to the array 224 by leads 230.
- the computer system 208 is used to actuate the laser 202 to produce the reflected beam 299 onto the array 224. Once the beam 222 hits any element 228 within the grid 226, a signal is sent over the leads 230 and stored in the computer system 208.
- the computer system 208 uses Information concerning all of the elements 228 which were hit, how long, and how often, to simulate an ablated cornea.
- Each pulse of the laser beam 222 is recorded by the computer system 208 and the total energy is cumulatively stored for each element 228 within the grid 226 of the array 224.
- the computer system 208 is used to directly translate actual laser energy pulses into a 3-D view of corneal stromal ablation. The 3-D view allows the ophthalmologist to easily predict keratometric changes to the cornea to be treated.
- Fig. 4 a third preferred embodiment or device 300 of the present invention is shown.
- the device 300 includes a laser 302 which may be actuated to produce a laser beam 304 which is directed at an array 306.
- the array 306 consists of a grid 308 of a bundle of fiber optic elements 310.
- the fiber optic elements 310 are adapted to sense or receive the laser beam 304.
- the fiber optic elements 310 are flexible and tubular in shape and are capable of transmitting light, such as the laser beam 304, which is emitted into one end and out the other end.
- a computer system 312 is connected to both the laser 302 and the array 306 by leads 314 and 316, respectively.
- the computer system 312 is used to control the operation of the laser 302 and to receive signals from the array 306 as to whether any of the fiber optic elements 3 10 has sensed the laser beam 304 and the duration of time that the laser beam 304 was sensed.
- the program within the computer system 312 can determine a simulated ablation profile for a cornea. With this information the computer system 312 can determine whether the simulated ablation profile matches a predetermined ablation profile.
- Fig. 5 depicts another fiber optic array 350 which is shaped to simulate a cornea of an eye.
- the array 350 includes a bundle of fiber optic elements 352 which may be used in the device 300 in place of the array 306.
- Each fiber optic element 352 is adapted to sense whether the laser beam 304 has been projected at the element 352.
- each element 352 is tubular in shape and capable of transmitting light along its length. The diameter of each element 352 may be for example 1 mm.
- FIG. 6 is a cross-sectional view of the fiber optic array 350 shown in Fig. 5 taken along the plane of line 6-6.
- the array 350 is shown to include the bundle of fiber optic elements 352 with each of the elements 352 being positioned to simulate the curvature or the contour of the cornea of the eye.
- the center fiber optic element 354 is shown as the longest element and projects out from the other elements 352. In this manner, the array 350 can better simulate a cornea of an eye to be ablated.
Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU62535/98A AU6253598A (en) | 1997-01-31 | 1998-01-30 | Device and method for simulating ophthalmic surgery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/792,888 US6210169B1 (en) | 1997-01-31 | 1997-01-31 | Device and method for simulating ophthalmic surgery |
US08/792,888 | 1997-01-31 |
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WO1998034212A1 true WO1998034212A1 (en) | 1998-08-06 |
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PCT/US1998/001653 WO1998034212A1 (en) | 1997-01-31 | 1998-01-30 | Device and method for simulating ophthalmic surgery |
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US (1) | US6210169B1 (en) |
AU (1) | AU6253598A (en) |
WO (1) | WO1998034212A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6562027B2 (en) * | 1996-08-26 | 2003-05-13 | O'donnell, Jr. Francis E. | Method and apparatus for improved PRK accuracy |
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US7291016B2 (en) * | 2004-01-09 | 2007-11-06 | United States Of America As Represented By The Secretary Of The Army | Ophthalmic surgery simulation device |
WO2006017013A2 (en) * | 2004-07-09 | 2006-02-16 | Visx, Incorporated | Laser pulse position monitor for scanned laser eye surgery systems |
US8685006B2 (en) * | 2006-11-10 | 2014-04-01 | Carl Zeiss Meditec Ag | Treatment apparatus for surgical correction of defective eyesight, method of generating control data therefore, and method for surgical correction of defective eyesight |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049147A (en) * | 1989-04-06 | 1991-09-17 | Danon Nissim N | Apparatus for computerized laser surgery |
US5066294A (en) * | 1990-05-22 | 1991-11-19 | Ioan Cosmescu | Performance tester apparatus for a surgical laser system and method therefor |
US5400428A (en) * | 1992-05-13 | 1995-03-21 | Spectranetics Corporation | Method and apparatus for linearly scanning energy over an optical fiber array and coupler for coupling energy to the optical fiber array |
US5464960A (en) * | 1993-01-12 | 1995-11-07 | Iatrotech, Inc. | Laser calibration device |
US5599340A (en) * | 1994-12-09 | 1997-02-04 | Simon; Gabriel | Laser beam ophthalmological surgery method and apparatus |
US5624436A (en) * | 1993-01-29 | 1997-04-29 | Nidek Co., Ltd. | Laser beam and ablating apparatus and related method |
US5713893A (en) * | 1993-05-03 | 1998-02-03 | O'donnell, Jr.; Francis E. | Test substrate for laser evaluation |
US5738679A (en) * | 1996-06-26 | 1998-04-14 | S.L.T. Japan Company Limited | Apparatus for laser treatment for living tissue |
Family Cites Families (140)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2480737A (en) | 1948-03-08 | 1949-08-30 | Jayle Gaetan Jean-Edward | Cutting instrument particularly useful in connection with corneal grafting |
US3074407A (en) | 1956-09-17 | 1963-01-22 | Marguerite Barr Moon Eye Res F | Surgical devices for keratoplasty and methods thereof |
US3476112A (en) | 1966-12-05 | 1969-11-04 | Jacob K Elstein | Surgical instrument for removal of thin layers |
US3697889A (en) | 1970-02-17 | 1972-10-10 | Xerox Corp | Tunable laser |
US3743965A (en) | 1971-07-12 | 1973-07-03 | Spectro Physics Inc | Tunable lasers |
JPS5643635B2 (en) | 1973-03-26 | 1981-10-14 | ||
US3848104A (en) | 1973-04-09 | 1974-11-12 | Avco Everett Res Lab Inc | Apparatus for heat treating a surface |
US3982541A (en) | 1974-07-29 | 1976-09-28 | Esperance Jr Francis A L | Eye surgical instrument |
US3983507A (en) | 1975-01-06 | 1976-09-28 | Research Corporation | Tunable laser systems and method |
US4169663A (en) | 1978-02-27 | 1979-10-02 | Synemed, Inc. | Eye attention monitor |
US4180751A (en) | 1978-09-08 | 1979-12-25 | Gte Sylvania Incorporated | Mode-locked optical parametric oscillator apparatus |
US4526171A (en) | 1980-01-15 | 1985-07-02 | Schachar Ronald A | Cornea incision device |
US4349907A (en) | 1980-04-23 | 1982-09-14 | The United Stated Of America As Represented By The Department Of Energy | Broadly tunable picosecond IR source |
US4619259A (en) | 1980-05-09 | 1986-10-28 | Graybill Walter R | Ophthalmic surgery tool |
US4386428A (en) | 1980-10-14 | 1983-05-31 | Sanders Associates, Inc. | Tripled Nd:YAG Pumped Tm3+ laser oscillator |
US4477159A (en) | 1980-11-06 | 1984-10-16 | Nidek Co., Ltd. | Photocoagulator |
US4546773A (en) | 1981-01-23 | 1985-10-15 | Accutome, Inc. | Apparatus to measure conical thickness |
US4688570A (en) | 1981-03-09 | 1987-08-25 | The Regents Of The University Of California | Ophthalmologic surgical instrument |
US4633866A (en) | 1981-11-23 | 1987-01-06 | Gholam Peyman | Ophthalmic laser surgical method |
US4461294A (en) | 1982-01-20 | 1984-07-24 | Baron Neville A | Apparatus and process for recurving the cornea of an eye |
US4423728A (en) | 1982-02-26 | 1984-01-03 | Lieberman David M | Cam-guided trephine |
US4784135A (en) | 1982-12-09 | 1988-11-15 | International Business Machines Corporation | Far ultraviolet surgical and dental procedures |
US4520816A (en) | 1983-01-12 | 1985-06-04 | Schachar Ronald A | Method and apparatus for delivering laser energy for ophthalmic use |
US4598714A (en) | 1983-02-22 | 1986-07-08 | Accutome, Inc. | Apparatus for measuring the thickness of corneas |
US4573467A (en) | 1983-05-13 | 1986-03-04 | The United States Of America As Represented By The Department Of Health And Human Services | Optical coupling device for biomicroscope |
US4693600A (en) * | 1983-11-01 | 1987-09-15 | Westinghouse Electric Corp. | Optical beam analyzer |
US4665913A (en) | 1983-11-17 | 1987-05-19 | Lri L.P. | Method for ophthalmological surgery |
US4770172A (en) | 1983-11-17 | 1988-09-13 | Lri L.P. | Method of laser-sculpture of the optically used portion of the cornea |
US4729372A (en) | 1983-11-17 | 1988-03-08 | Lri L.P. | Apparatus for performing ophthalmic laser surgery |
ZA847841B (en) * | 1983-11-17 | 1985-05-29 | Francis A L Esperance | Method and apparatus for ophthalmological surgery |
US4732148A (en) | 1983-11-17 | 1988-03-22 | Lri L.P. | Method for performing ophthalmic laser surgery |
US5312320A (en) | 1983-11-17 | 1994-05-17 | Visx, Incorporated | Apparatus for performing ophthalmological surgery |
US4718418A (en) | 1983-11-17 | 1988-01-12 | Lri L.P. | Apparatus for ophthalmological surgery |
US5207668A (en) | 1983-11-17 | 1993-05-04 | Visx Incorporated | Method for opthalmological surgery |
US5507741A (en) | 1983-11-17 | 1996-04-16 | L'esperance, Jr.; Francis A. | Ophthalmic method for laser surgery of the cornea |
US4773414A (en) | 1983-11-17 | 1988-09-27 | Lri L.P. | Method of laser-sculpture of the optically used portion of the cornea |
US5219343A (en) | 1983-11-17 | 1993-06-15 | Visx Incorporated | Apparatus for performing ophthalmogolical surgery |
US5735843A (en) | 1983-12-15 | 1998-04-07 | Visx, Incorporated | Laser surgery apparatus and method |
US5108388B1 (en) | 1983-12-15 | 2000-09-19 | Visx Inc | Laser surgery method |
JPS60148566A (en) | 1984-01-13 | 1985-08-05 | 株式会社東芝 | Laser treatment apparatus |
US4538608A (en) | 1984-03-23 | 1985-09-03 | Esperance Jr Francis A L | Method and apparatus for removing cataractous lens tissue by laser radiation |
DE3422144A1 (en) | 1984-06-14 | 1985-12-19 | Josef Prof. Dr. 6900 Heidelberg Bille | DEVICE FOR DISPLAYING AREA AREAS OF THE HUMAN EYE |
US4580559A (en) | 1984-07-24 | 1986-04-08 | Esperance Francis A L | Indirect ophthalmoscopic photocoagulation delivery system for retinal surgery |
DE3433581C2 (en) | 1984-09-13 | 1986-08-07 | Fa. Carl Zeiss, 7920 Heidenheim | Device for laminating, refractive corneal surgery |
US4669466A (en) | 1985-01-16 | 1987-06-02 | Lri L.P. | Method and apparatus for analysis and correction of abnormal refractive errors of the eye |
US4862886A (en) | 1985-05-08 | 1989-09-05 | Summit Technology Inc. | Laser angioplasty |
IL79034A (en) * | 1985-06-06 | 1993-05-13 | Visx Inc | Apparatus for ophthalmological surgery |
AU606315B2 (en) | 1985-09-12 | 1991-02-07 | Summit Technology, Inc. | Surface erosion using lasers |
JPS6294153A (en) | 1985-10-18 | 1987-04-30 | 興和株式会社 | Laser beam coagulation apparatus |
US4720189A (en) | 1986-01-07 | 1988-01-19 | Northern Telecom Limited | Eye-position sensor |
US5423801A (en) | 1986-03-19 | 1995-06-13 | Summit Technology, Inc. | Laser corneal surgery |
GB8606821D0 (en) | 1986-03-19 | 1986-04-23 | Pa Consulting Services | Corneal reprofiling |
US4856513A (en) | 1987-03-09 | 1989-08-15 | Summit Technology, Inc. | Laser reprofiling systems and methods |
US5336217A (en) | 1986-04-24 | 1994-08-09 | Institut National De La Sante Et De La Recherche Medicale (Insepm) | Process for treatment by irradiating an area of a body, and treatment apparatus usable in dermatology for the treatment of cutaneous angio dysplasias |
US4807623A (en) | 1986-05-30 | 1989-02-28 | David M. Lieberman | Device for simultaneously forming two incisions along a path on an eye |
US4838266A (en) | 1986-09-08 | 1989-06-13 | Koziol Jeffrey E | Lens shaping device using a laser attenuator |
US4911711A (en) | 1986-12-05 | 1990-03-27 | Taunton Technologies, Inc. | Sculpture apparatus for correcting curvature of the cornea |
US4729373A (en) | 1986-12-18 | 1988-03-08 | Peyman Gholam A | Laser-powered surgical device with a vibrating crystalline tip |
US4840175A (en) | 1986-12-24 | 1989-06-20 | Peyman Gholam A | Method for modifying corneal curvature |
US5019074A (en) | 1987-03-09 | 1991-05-28 | Summit Technology, Inc. | Laser reprofiling system employing an erodable mask |
US5324281A (en) | 1987-03-09 | 1994-06-28 | Summit Technology, Inc. | Laser reprofiling system employing a photodecomposable mask |
US4798204A (en) | 1987-05-13 | 1989-01-17 | Lri L.P. | Method of laser-sculpture of the optically used portion of the cornea |
US5284477A (en) | 1987-06-25 | 1994-02-08 | International Business Machines Corporation | Device for correcting the shape of an object by laser treatment |
GB2207799B (en) | 1987-08-04 | 1991-09-18 | Gen Electric Co Plc | Tunable lasers |
US5163934A (en) | 1987-08-05 | 1992-11-17 | Visx, Incorporated | Photorefractive keratectomy |
JPH01113025A (en) | 1987-10-28 | 1989-05-01 | Topcon Corp | Laser scanning ophthalmic apparatus |
US4993826A (en) | 1987-11-25 | 1991-02-19 | Taunton Technologies, Inc. | Topography measuring apparatus |
US4764930A (en) | 1988-01-27 | 1988-08-16 | Intelligent Surgical Lasers | Multiwavelength laser source |
US4848340A (en) | 1988-02-10 | 1989-07-18 | Intelligent Surgical Lasers | Eyetracker and method of use |
US4907586A (en) | 1988-03-31 | 1990-03-13 | Intelligent Surgical Lasers | Method for reshaping the eye |
US5364388A (en) | 1988-04-01 | 1994-11-15 | Koziol Jeffrey E | Beam delivery system for corneal surgery |
US5425727A (en) | 1988-04-01 | 1995-06-20 | Koziol; Jeffrey E. | Beam delivery system and method for corneal surgery |
US5074859A (en) | 1990-01-05 | 1991-12-24 | Koziol Jeffrey E | Beam delivery system for corneal surgery |
US5267013A (en) * | 1988-04-18 | 1993-11-30 | 3D Systems, Inc. | Apparatus and method for profiling a beam |
US5102409A (en) | 1988-04-22 | 1992-04-07 | Balgorod Barry M | Method and apparatus for modification of corneal refractive properties |
US5219344A (en) | 1988-06-09 | 1993-06-15 | Visx, Incorporated | Methods and apparatus for laser sculpture of the cornea |
US4896015A (en) | 1988-07-29 | 1990-01-23 | Refractive Laser Research & Development Program, Ltd. | Laser delivery system |
DE68919328T2 (en) | 1988-10-28 | 1995-05-24 | Ibm | Ultraviolet laser ablation and etching of organic solids. |
EP0368512A3 (en) * | 1988-11-10 | 1990-08-08 | Premier Laser Systems, Inc. | Multiwavelength medical laser system |
DE3838253A1 (en) | 1988-11-11 | 1990-05-23 | Krumeich Joerg H | Suction ring for operations on the human eye |
US4903695C1 (en) | 1988-11-30 | 2001-09-11 | Lri L P | Method and apparatus for performing a keratomileusis or the like operation |
US5196006A (en) | 1989-04-25 | 1993-03-23 | Summit Technology, Inc. | Method and apparatus for excision endpoint control |
US4975918A (en) | 1989-06-07 | 1990-12-04 | Maxwell Laboratories, Inc. | Tunable laser |
US5152759A (en) | 1989-06-07 | 1992-10-06 | University Of Miami, School Of Medicine, Dept. Of Ophthalmology | Noncontact laser microsurgical apparatus |
EP0418890A3 (en) * | 1989-09-21 | 1992-03-25 | Mitsui Petrochemical Industries, Ltd. | Solid state laser device for lithography light source and semiconductor lithography method |
US5063942A (en) | 1989-12-14 | 1991-11-12 | Corneal Contouring, Inc. | Method for surgically re-profiling the cornea |
US5133726A (en) | 1990-02-14 | 1992-07-28 | Ruiz Luis A | Automatic corneal shaper |
JP2980938B2 (en) | 1990-04-12 | 1999-11-22 | 株式会社ニデック | Lens system for condensing semiconductor laser light |
FR2660859B1 (en) | 1990-04-12 | 1992-07-10 | Hanna Khalil | KERATOTOME FOR THE MAKING OF ARCIFORM INCISIONS. |
US5182759A (en) | 1990-05-16 | 1993-01-26 | Amoco Corporation | Apparatus and method for pumping of a weakly absorbing lasant material |
US5222960A (en) | 1990-10-05 | 1993-06-29 | Poley Brooks J | Cracking and rotating cataract for removal from eye |
AU647533B2 (en) | 1990-10-16 | 1994-03-24 | Summit Technology, Inc. | Laser thermokeratoplasty methods and apparatus |
US5065046A (en) | 1990-11-28 | 1991-11-12 | Amoco Corporation | Method and apparatus for parametric generation of midinfrared light in KNbO3 |
FR2670669B1 (en) | 1990-12-20 | 1993-03-12 | Hanna Khalil | INSTRUMENT FOR SURGICAL CORRECTION OF ASTIGMATISM. |
JP3199124B2 (en) | 1990-12-28 | 2001-08-13 | 株式会社ニデック | Laser ablation equipment |
US5163936A (en) | 1991-01-22 | 1992-11-17 | Reliant Laser Corp. | Endoscopic mirror laser beam delivery system and method for controlling alignment |
JP3206923B2 (en) | 1991-01-30 | 2001-09-10 | 株式会社ニデック | Ophthalmic laser surgery device |
GB9107013D0 (en) * | 1991-04-04 | 1991-05-22 | Power Lasers Inc | Solid state artificial cornea for uv laser sculpting |
US5257988A (en) | 1991-07-19 | 1993-11-02 | L'esperance Medical Technologies, Inc. | Apparatus for phacoemulsifying cataractous-lens tissue within a protected environment |
US5263950A (en) | 1991-07-24 | 1993-11-23 | L'esperance Medical Technologies, Inc. | Phaco-extractor for fragmenting cataractous-lens situs of fragmentation |
US5144630A (en) | 1991-07-29 | 1992-09-01 | Jtt International, Inc. | Multiwavelength solid state laser using frequency conversion techniques |
CA2073802C (en) | 1991-08-16 | 2003-04-01 | John Shimmick | Method and apparatus for combined cylindrical and spherical eye corrections |
US5290301A (en) | 1991-09-10 | 1994-03-01 | Lieberman David M | Cam guided corneal trephine |
US5363388A (en) | 1991-10-18 | 1994-11-08 | Cedars-Sinai Medical Center | Continuously tunable solid state ultraviolet coherent light source |
US5395362A (en) | 1992-01-14 | 1995-03-07 | Summit Technology | Methods and apparatus for distributing laser radiation |
US5637109A (en) | 1992-02-14 | 1997-06-10 | Nidek Co., Ltd. | Apparatus for operation on a cornea using laser-beam |
US5349590A (en) | 1992-04-10 | 1994-09-20 | Premier Laser Systems, Inc. | Medical laser apparatus for delivering high power infrared light |
US5217452A (en) | 1992-05-18 | 1993-06-08 | Donnell Francis E O | Transscleral laser treatment of subretinal neovascularization |
US5370641A (en) | 1992-05-22 | 1994-12-06 | O'donnell, Jr.; Francis E. | Laser trabeculodissection |
JP2907656B2 (en) | 1992-08-31 | 1999-06-21 | 株式会社ニデック | Laser surgery device |
DE4232915A1 (en) | 1992-10-01 | 1994-04-07 | Hohla Kristian | Device for shaping the cornea by removing tissue |
US5437658A (en) | 1992-10-07 | 1995-08-01 | Summit Technology, Incorporated | Method and system for laser thermokeratoplasty of the cornea |
JP3197375B2 (en) | 1992-11-07 | 2001-08-13 | 株式会社ニデック | Corneal ablation device |
US5520679A (en) | 1992-12-03 | 1996-05-28 | Lasersight, Inc. | Ophthalmic surgery method using non-contact scanning laser |
US5288292A (en) | 1992-12-04 | 1994-02-22 | Micro Precision Instrument Company | Keratome with miniature differential micrometer |
US5353262A (en) | 1993-03-12 | 1994-10-04 | General Electric Company | Optical transducer and method of use |
US5350374A (en) | 1993-03-18 | 1994-09-27 | Smith Robert F | Topography feedback control system for photoablation |
US5345534A (en) | 1993-03-29 | 1994-09-06 | Texas Instruments Incorporated | Semiconductor wafer heater with infrared lamp module with light blocking means |
JPH0749303A (en) * | 1993-04-01 | 1995-02-21 | High Yield Technol Inc | Particle sensor and particle detecting method |
US5549597A (en) | 1993-05-07 | 1996-08-27 | Visx Incorporated | In situ astigmatism axis alignment |
US5556395A (en) | 1993-05-07 | 1996-09-17 | Visx Incorporated | Method and system for laser treatment of refractive error using an offset image of a rotatable mask |
US5395356A (en) | 1993-06-04 | 1995-03-07 | Summit Technology, Inc. | Correction of presbyopia by photorefractive keratectomy |
US5360424A (en) | 1993-06-04 | 1994-11-01 | Summit Technology, Inc. | Tracking system for laser surgery |
US5411501A (en) | 1993-06-04 | 1995-05-02 | Summit Technology, Inc. | Laser reprofiling system for correction of astigmatisms |
US5461212A (en) | 1993-06-04 | 1995-10-24 | Summit Technology, Inc. | Astigmatic laser ablation of surfaces |
AU7099694A (en) | 1993-06-04 | 1995-01-03 | Summit Technology, Inc. | Rotatable aperture apparatus and methods for selective photoablation of surfaces |
US5474548A (en) | 1993-07-14 | 1995-12-12 | Knopp; Carl F. | Method of establishing a unique machine independent reference frame for the eye |
US5405355A (en) | 1993-09-10 | 1995-04-11 | Vitrophage, Inc. | Method of radial keratotomy employing a vibrating cutting blade |
IL108059A (en) | 1993-12-17 | 1998-02-22 | Laser Ind Ltd | Method and apparatus for applying laser beams to a working surface, particularly for ablating tissue |
US5505723A (en) | 1994-02-10 | 1996-04-09 | Summit Technology, Inc. | Photo-refractive keratectomy |
US5632742A (en) * | 1994-04-25 | 1997-05-27 | Autonomous Technologies Corp. | Eye movement sensing method and system |
US5849006A (en) | 1994-04-25 | 1998-12-15 | Autonomous Technologies Corporation | Laser sculpting method and system |
FR2719690B1 (en) * | 1994-05-04 | 1996-07-19 | Lille Ii Universite | Device and method for simulating an examination or a surgical operation performed on a simulated organ. |
US5613965A (en) | 1994-12-08 | 1997-03-25 | Summit Technology Inc. | Corneal reprofiling using an annular beam of ablative radiation |
US5480396A (en) | 1994-12-09 | 1996-01-02 | Simon; Gabriel | Laser beam ophthalmological surgery method and apparatus |
JP3490520B2 (en) | 1994-12-12 | 2004-01-26 | 株式会社ニデック | Ophthalmic equipment |
US5646791A (en) | 1995-01-04 | 1997-07-08 | Visx Incorporated | Method and apparatus for temporal and spatial beam integration |
US5681490A (en) * | 1995-09-18 | 1997-10-28 | Chang; Dale U. | Laser weld quality monitoring system |
US5782822A (en) | 1995-10-27 | 1998-07-21 | Ir Vision, Inc. | Method and apparatus for removing corneal tissue with infrared laser radiation |
US5843070A (en) * | 1996-05-13 | 1998-12-01 | Partech, Inc. | Simulating corneal laser surgery |
-
1997
- 1997-01-31 US US08/792,888 patent/US6210169B1/en not_active Expired - Fee Related
-
1998
- 1998-01-30 WO PCT/US1998/001653 patent/WO1998034212A1/en active Application Filing
- 1998-01-30 AU AU62535/98A patent/AU6253598A/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049147A (en) * | 1989-04-06 | 1991-09-17 | Danon Nissim N | Apparatus for computerized laser surgery |
US5066294A (en) * | 1990-05-22 | 1991-11-19 | Ioan Cosmescu | Performance tester apparatus for a surgical laser system and method therefor |
US5400428A (en) * | 1992-05-13 | 1995-03-21 | Spectranetics Corporation | Method and apparatus for linearly scanning energy over an optical fiber array and coupler for coupling energy to the optical fiber array |
US5464960A (en) * | 1993-01-12 | 1995-11-07 | Iatrotech, Inc. | Laser calibration device |
US5624436A (en) * | 1993-01-29 | 1997-04-29 | Nidek Co., Ltd. | Laser beam and ablating apparatus and related method |
US5713893A (en) * | 1993-05-03 | 1998-02-03 | O'donnell, Jr.; Francis E. | Test substrate for laser evaluation |
US5599340A (en) * | 1994-12-09 | 1997-02-04 | Simon; Gabriel | Laser beam ophthalmological surgery method and apparatus |
US5738679A (en) * | 1996-06-26 | 1998-04-14 | S.L.T. Japan Company Limited | Apparatus for laser treatment for living tissue |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7364409B2 (en) | 2004-02-11 | 2008-04-29 | Haldex Hydraulics Corporation | Piston assembly for rotary hydraulic machines |
Also Published As
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US6210169B1 (en) | 2001-04-03 |
AU6253598A (en) | 1998-08-25 |
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