Bruno Michelle Lassalas

US Patent:

20060033926, Feb 16, 2006

Filed:

Aug 15, 2005

Appl. No.:

11/204305

Inventors:

Alexander Artsyukhovich - Irvine CA, US
T. Rowe - Dana Point CA, US
Bruno Lassalas - Irvine CA, US
Lawrence Darnell - Cypress TX, US
W. Kozlowski - Tega Cay SC, US

International Classification:

G01B 9/02

US Classification:

356479000

Abstract:

A system, apparatus and method for spatially distributed, spectrally neutral optical attenuation are disclosed. One embodiment of the apparatus comprises: an attenuator fin plate; a set of attenuator fins, wherein each of the fins is operably coupled to the fin plate at a preset fin angle to the fin plate normal such that the attenuator fins maintain their position relative to the fin plate as the fin plate moves; and a means for rotating the fin plate a set angular distance around an axis of rotation, wherein the axis of rotation is at a preset fin plate angle to a light beam direction of travel and wherein the attenuator fins block varying amounts of the light beam as the fin plate is rotated through the set angular distance. The attenuator fin plate and attenuator fins can be a single, integral component, wherein the attenuator fin plate is etched and stamped to form the attenuator fins, or separately formed components that are attached, for example, to a separate frame. The means for rotating the fin plate would then comprise means to rotate the attenuator frame. Means for rotating the attenuator fin plate or frame can include a stepper motor, for discrete step positions, or a continuously variable motor for infinitely variable positioning. The means for rotating the attenuator fin plate or frame can be electronically controlled, for example, by a microprocessor on a printed circuit board or other such controller as known to those having skill in the art. The preset fin angle can be 31 degrees, and the preset fin plate angle can be 90 degrees. Each of the attenuator fins can be operably coupled to the fin plate at the same preset fin angle and the fin plate and/or frame centered on the axis of rotation. Each fin's major axis can be parallel to every other fin's major axis, and the axis of rotation can be parallel to each fin's major axis. The set of attenuator fins can comprise eight attenuator fins and the attenuator fins can be spaced equally apart from one another. The attenuator fin plate and set of attenuator fins can be sized so as to interfere with the entire light beam cross-section/aperture at a position along the set angular distance corresponding to zero percent of the optical beam passing through the attenuator fins. The embodiments of the attenuator of this invention can be configured for use within an ophthalmic high brightness illumination system.

US Patent:

20060103835, May 18, 2006

Filed:

Nov 14, 2005

Appl. No.:

11/273123

Inventors:

Alexander Artsyukhovich - Dana Point CA, US
Bruno Lassalas - Irvine CA, US
T. Rowe - Dana Point CA, US
Peter Nguyen - Garden Grove CA, US

International Classification:

G01N 21/00

US Classification:

356073100

Abstract:

An optical fiber detector, and a method and system for optical fiber detection are disclosed. One embodiment of the optical fiber detector of this invention comprises: a receptacle, to receive and position an optical fiber connector; an infra-red (“IR”) source for providing an incident IR beam onto a cross-sectional face of an optical fiber and a cross-sectional face of the optical fiber connector; and an IR detector for receiving a reflected IR beam from the face of the optical fiber and the face of the optical fiber connector and generating a detector signal representative of the intensity of the reflected IR beam, wherein the intensity of the reflected IR beam is representative of the presence and type of the optical fiber. This embodiment of the optical fiber can further comprise an IR filter for filtering non-IR wavelengths from the reflected IR beam before the IR beam is received at the IR detector and signal processing and control means, for receiving and processing the detector signal to provide display, control or monitoring functions. The receptacle can be part of an illuminator system enclosure housing a light source, wherein the receptacle is further operable to position the connector such that the optical fiber is optically coupled to the light source. The infra-red source can comprise an IR light emitting diode (“LED”) and the IR detector can comprise a photodiode operable to detect IR wavelengths. The intensity of the reflected IR beam can vary, and is inversely proportional to the ratio of the area of cross-sectional face of the optical fiber reflecting the incident IR beam to the area of cross-sectional optical fiber connector reflecting the incident IR beam. Embodiments of this invention can be implemented within any fiber-optic illuminator machine or system for use in ophthalmic or other surgery. Further, it is contemplated that the optical fiber detector of this invention can be implemented or incorporated in any machine or system requiring connection of an optical fiber to a light source. Other uses for an optical fiber detection method and system designed in accordance with the teachings of this invention will be apparent to those familiar with the art.

US Patent:

20070073279, Mar 29, 2007

Filed:

Sep 29, 2006

Appl. No.:

11/541111

Inventors:

T. Rowe - Dana Point CA, US
Christopher Horvath - Irvine CA, US
Bryan Somen - Santa Ana CA, US
Bruno Lassalas - Irvine CA, US
Stanley Polski - Fullerton CA, US

International Classification:

A61B 18/18
A61F 9/008

US Classification:

606011000, 606013000, 606005000

Abstract:

A continuous wave laser is provided to produce isolated surgical effects within selected tissue layers. The continuous wave laser includes a laser source, an optical modulation device, and a system controller. The laser source produces a laser beam which is provided to the optical modulation device. The optical modulation device modulates the laser beam in order achieve isolated surgical effects within selected tissue layers. The system controller drives the laser source and the optical modulation device to achieve the isolated surgical effects. The system controller may direct the laser beam delivered to the selected tissues comprise a series of modulated bursts which further comprise modulated micro bursts. These bursts and micro bursts may be modulated in amplitude, duration and separation.

US Patent:

20080124032, May 29, 2008

Filed:

Apr 17, 2007

Appl. No.:

11/736407

Inventors:

Christopher Horvath - Irvine CA, US
Bruno X. Lassalas - Irvine CA, US

International Classification:

G02B 6/44

US Classification:

385 76

Abstract:

Embodiments of the present invention provide an optical connection that protects the optical fiber or cable. This optical connection includes an optical coupling to communicatively couple an optical fiber to an optical device. A mechanical guide receives the optical fiber proximate to the optical device. This mechanical guide prevents excessive or limits the amount of bending of individual optical fibers or cable proximate to the optical device. This may be achieved by receiving the optical fiber within a mechanical guide having a predetermined bend radius based on the optical fiber or optical cable running inside. By limiting the potential for excessive bending of an optical fiber proximate to an optical coupling the potential for attenuation of the transmitted light within the fiber due to extreme bending is decreased.

US Patent:

20090040181, Feb 12, 2009

Filed:

Aug 9, 2007

Appl. No.:

11/836426

Inventors:

Lawrence Darnell - Cypress TX, US
Christopher Horvath - Irvine CA, US
Bruno Lassalas - Irvine CA, US

International Classification:

G06F 3/033

US Classification:

345161

Abstract:

Embodiments provide a system and method for magnetic hand controllers. An embodiment of a magnetic hand controller can include a base portion comprising a base magnet, a hand control portion spaced from and movable relative to the base portion, the hand control portion comprising a hand control and a hand control magnet coupled to the hand control and oriented so that the hand control magnet is attracted to the base magnet. The hand control portion may be coupled to a device such that a user may control the device by moving the hand control.

US Patent:

20090234334, Sep 17, 2009

Filed:

Mar 24, 2009

Appl. No.:

12/410115

Inventors:

Alexander Artsyukhovich - Dana Point CA, US
T. Scott Rowe - Dana Point CA, US
Bruno Lassalas - Irvine CA, US
Lawrence Darnell - Cypress TX, US

International Classification:

A61F 9/007
A61B 18/18

US Classification:

606 4

Abstract:

A system, apparatus and method for spatially distributed, spectrally neutral optical attenuation. One embodiment of the apparatus can include: an attenuator fin plate; a set of attenuator fins, wherein each of the fins is operably coupled to the fin plate at a preset fin angle to the fin plate normal such that the attenuator fins maintain their position relative to the fin plate as the fin plate moves; and a motor for rotating the fin plate a set angular distance around an axis of rotation, wherein the axis of rotation is at a preset fin plate angle to a light beam direction of travel and wherein the attenuator fins block varying amounts of the light beam as the fin plate is rotated through the set angular distance. The attenuator fin plate and attenuator fins can be a single, integral component, wherein the attenuator fin plate is etched and stamped to form the attenuator fins, or separately formed components that are attached, for example, to a separate frame. The embodiments of the attenuator of this invention can be configured for use within an ophthalmic high brightness illumination system.

US Patent:

20120283523, Nov 8, 2012

Filed:

Apr 30, 2012

Appl. No.:

13/459629

Inventors:

Michael J. Yadlowsky - Sunnyvale CA, US
Michael James Papac - North Tustin CA, US
Bruno Lassalas - Irvine CA, US

International Classification:

A61B 1/07

US Classification:

600249

Abstract:

An illuminated microsurgical instrument includes a microsurgical instrument having a distal tip and an optical fiber for delivering a beam of light to a surgical site. The optical fiber includes a proximal end for receiving a light beam from a light source, and a distal end proximate to the distal tip of the microsurgical instrument for emitting the light beam. The distal end includes a beveled end face either oriented toward or oriented opposite from the distal tip of the microsurgical instrument.

US Patent:

20130077917, Mar 28, 2013

Filed:

Sep 23, 2011

Appl. No.:

13/241386

Inventors:

Bruno Lassalas - Irvine CA, US
Michael J. Papac - Tustin CA, US
Michael J. Yadlowsky - Sunnyvale CA, US

International Classification:

G02B 6/34
G02B 6/42

US Classification:

385 37, 385 31

Abstract:

Certain embodiments may include a laser system configured to emit collimated laser light, a beam diverging element configured to diverge the laser light to yield a range of propagation angles with a maximum angle greater than zero, and fiber coupling optics configured to direct the diverged laser light towards a spot of a cross-section of a fiber core of an optical fiber. As another example, certain embodiments may include a laser system configured to emit collimated laser light, a beam shaping element configured to shape the laser light into a beam with an elliptical cross-section, and fiber coupling optics configured to direct the diverged laser light towards a spot of a cross-section of a fiber core of an optical fiber, where the spot's center point is located at a distance from the cross-section's center point.