Christopher A Horvath

US Patent:

6648877, Nov 18, 2003

Filed:

Jun 30, 2000

Appl. No.:

09/609090

Inventors:

Tibor Juhasz - Irvine CA
Ronald M. Kurtz - Ann Arbor MI
Christopher Horvath - Irvine CA
Carlos G. Suarez - Irvine CA
J. Randy Alexander - Newport Beach CA

Assignee:

Intralase Corp. - Irvine CA

International Classification:

A61P 9007

US Classification:

606 5, 606 10, 606 12, 606 13

Abstract:

A method for customizing corneal corrections includes superposing an imaginary reference field (grid) on the anterior surface of the cornea of an eye to divide the corneal surface into reference areas. Also, a diagnostically determined refractive power map for the cornea is created. An incising laser beam is then directed through an individual reference area to a focal spot. Next, movement of the focal spot along the laser beam path is selectively accomplished to photoalter a predetermined volume of stromal tissue. Subsequently, based on the refractive power map, the predetermined volume of stromal tissue that is to be photoaltered is identified for each specific reference area. Accordingly, the steps of directing the beam and moving the focal spot are then repeated using selected reference areas until the required corneal correction is achieved.

US Patent:

6693927, Feb 17, 2004

Filed:

Sep 13, 2002

Appl. No.:

10/242828

Inventors:

Christopher Horvath - Irvine CA
Ruben Zadoyan - Irvine CA

Assignee:

IntraLase Corp. - Irvine CA

International Classification:

H01S 3091

US Classification:

372 18, 372 70, 372 75

Abstract:

The invention is directed to an apparatus and method for oscillator start-up control, and more particularly to an apparatus and method for overdriving a laser to obtain mode-lock operation. The oscillator with start-up control has a lasing medium mounted on a base. A laser pumping source is mounted on the base for inducing a laser beam from the lasing medium. A mode-lock detection device is mounted about the base. An overdrive circuit is coupled with the mode-lock detection and signal processing device for determining mode-lock status of the oscillator. The overdrive circuit overdrives the pump source when the oscillator is not in mode-lock status.

US Patent:

6902561, Jun 7, 2005

Filed:

Mar 21, 2003

Appl. No.:

10/394368

Inventors:

Ronald M. Kurtz - Irvine CA, US
Tibor Juhasz - Irvine CA, US
Peter Goldstein - Santa Ana CA, US
Imre Hegedus - Lake Forest CA, US
Christopher Horvath - Irvine CA, US
Gordon S. Scholler - Poway CA, US
Alan W. Berg - Rapid City SD, US

Assignee:

Intralase Corp. - Irvine CA

International Classification:

A61F009/008

US Classification:

606 4, 128898, 606 5

Abstract:

A method and system for improved material processing using a laser beam. The method and system includes directing a laser beam above, at or below the surface of the material in one or more preferred patterns and with preferred laser pulse characteristics specific to the material to reduce or mitigate the accumulation or effects of gas, debris, fluid, or other by-products of photodisruption either at the location where additional laser pulses are being placed or in other sensitive locations in the material.

US Patent:

6992765, Jan 31, 2006

Filed:

Oct 11, 2002

Appl. No.:

10/269340

Inventors:

Christopher Horvath - Irvine CA, US
Ruben Zadoyan - Irvine CA, US
Ferenc Raksi - Irvine CA, US
Zsolt Bor - San Clemente CA, US
Guy Vern Holland - San Clemente CA, US
Tibor Juhasz - Irvine CA, US

Assignee:

Intralase Corp. - Irvine CA

International Classification:

G01B 11/00

US Classification:

356399, 356400, 356124

Abstract:

The present invention generally relates to a method and system for determining the position and alignment of a plane in relation to an intersecting axis and using that known position and alignment to allow for corrections to be made when using the plane as a reference plane. More particularly, the invention relates to a method and system for determining the angle of tilt of a planar surface in relation to a laser beam, and using the determined angle of tilt to calculate a correction factor to be applied to the laser beam. Briefly stated, the method and system ultimately calculates a correction factor, z-offset, that is applied when using the laser beam in a procedure.

US Patent:

7189224, Mar 13, 2007

Filed:

Mar 18, 2005

Appl. No.:

11/083793

Inventors:

Ronald M. Kurtz - Irvine CA, US
Tibor Juhasz - Irvine CA, US
Peter Goldstein - Santa Ana CA, US
Imre Hegedus - Budapest, HU
Christopher Horvath - Irvine CA, US
Gordon Scott Scholler - Poway CA, US
Alan W. Berg - Rapid City SD, US

Assignee:

Intralase Corp. - Irvine CA

International Classification:

A61F 9/01

US Classification:

606 5, 128898, 606 4

Abstract:

A method and system for improved material processing using a laser beam. The method and system includes directing a laser beam above, at or below the surface of the material in one or more preferred patterns and with preferred laser pulse characteristics specific to the material to reduce or mitigate the accumulation or effects of gas, debris, fluid, or other by-products of photodisruption either at the location where additional laser pulses are being placed or in other sensitive locations in the material.

US Patent:

7619171, Nov 17, 2009

Filed:

Jun 26, 2006

Appl. No.:

11/474668

Inventors:

Christopher Horvath - Irvine CA, US
Bruno Dacquay - Irvine CA, US

Assignee:

Alcon, Inc. - Hunenberg

International Classification:

H01H 3/14

US Classification:

200 865, 200341

Abstract:

A multifunction surgical footswitch is disclosed, one embodiment of the surgical footswitch comprising: a base assembly, wherein the base assembly comprises a shroud and a heel plate; a stand-by/ready switch attached to the base assembly and operable to provide a stand-by/ready control signal to switch a laser between a stand-by and a ready state; and a firing switch attached to the base assembly and operable to provide a firing control signal to fire the laser. The surgical footswitch can further comprise an interface communicatively coupled to the firing switch and the stand-by/ready switch and operable to communicate the firing and the stand-by/ready control signals to the laser.

US Patent:

7781941, Aug 24, 2010

Filed:

Mar 27, 2006

Appl. No.:

11/389808

Inventors:

Christopher Horvath - Irvine CA, US
Mark Buczek - Oceanside CA, US
T. Scott Rowe - Dana Point CA, US

Assignee:

Alcon, Inc. - Hunenberg

International Classification:

H01L 41/113
G05G 1/30

US Classification:

310339, 310319, 310338, 74514

Abstract:

The present invention provides a surgical footswitch that includes a base, a pedal, an encoder assembly, a wireless interface, and an internal power generator. The pedal mounts upon the base and pivots. The encoder assembly couples to the pedal. As the pedal pivots, the encoder assembly translates the mechanical signal of the pedal into a control signal based on the pedals position and/or orientation. The wireless interface couples the encoder assembly to receive the control signal. The wireless interface also couples the surgical footswitch to a surgical console operable to control and direct surgical equipment. The wireless interface passes the control signal from the encoder to the surgical console, which then directs the surgical equipment based on the control signal. This wireless interface eliminates the tangle of wires or tethers, which may be a hazard in the surgical theater. The internal power generator translates footswitch movement into stored energy to eliminate potential failures of the footswitch during a procedure and overcome the need to replace batteries within the footswitch.

US Patent:

8308716, Nov 13, 2012

Filed:

Jun 26, 2007

Appl. No.:

11/768576

Inventors:

Christopher Horvath - Irvine CA, US

Assignee:

Novartis AG - Basel

International Classification:

A61B 18/18

US Classification:

606 4, 606 5, 606 10, 607 89

Abstract:

An apparatus and method for auto-titrating a surgical laser are disclosed. One embodiment of the method comprises: providing an algorithm, wherein the algorithm is operable to configure the laser based on one or more user inputs; providing a first user input operable to cause the algorithm to execute and fire the laser in a defined pattern; providing a second user input, in response to an observed condition, operable to cause the laser to stop firing and to cause the algorithm to determine one or more laser parameter values and configure the laser based on the one or more laser parameter values, wherein a final laser power value when the laser stops firing is an input to the algorithm and wherein the algorithm determines the one or more laser parameters based on the final laser power value. The method can further comprise placing the laser in a “ready” (surgical) mode, either automatically by the auto-titration algorithm or via another user input. Once in a ready mode, a user, such as a surgeon, can perform a surgical procedure with the automatically configured laser.