Greg E Leyh, 62Brisbane, CA
Greg Leyh Phones & Addresses
Brisbane, CA
San Francisco, CA
Palo Alto, CA
San Mateo, CA
220 Humboldt Rd, Brisbane, CA 94005 415-4681010
Education
Degree:
High school graduate or higher
Emails
Mentions for Greg E Leyh
Publications & IP owners
Us Patents
Optimizing Rf Power Spatial Distribution Using Frequency Control
US Patent:
8211097, Jul 3, 2012
Filed:
Feb 13, 2009
Appl. No.:
12/371103
Inventors:
Greg Leyh - Brisbane CA, US
Assignee:
Cutera, Inc. - Brisbane CA
International Classification:
A61B 18/04
US Classification:
606 31
Abstract:
An electro-surgical system actively maintains an optimal heating profile at the electrode-patient contact surface under varying load resistivity, thereby reducing the risk of burns and maximizing patient comfort at a given power level. A set of temperature sensors is integrated within the electrode assembly of the electrosurgical system. The sensors are located both at the center and the edges of the electrode. The sensors are thermally coupled to the electrode-patient contact surface and have a time response that is short compared to the thermal time constraints of the tissue. Some degree of signal processing may take place at the sensor, inside the transducer assembly. As RF power is applied, a control loop monitors the temperature at the center and edges of the electrode. If the edge temperature of the electrode is high compared to its center temperature, then the control loop increases the operating frequency, effectively driving heat towards the center of the electrode. Conversely, if the edge temperature of the electrode is low compared to its center temperature, then the control loop decreases the operating frequency, effectively driving heat towards the edges of the electrode.
Subcutaneous Electric Field Distribution System And Methods
US Patent:
8454591, Jun 4, 2013
Filed:
Apr 6, 2012
Appl. No.:
13/441782
Inventors:
Greg Leyh - Brisbane CA, US
Jerzy Orkiszewski - Palo Alto CA, US
Jerzy Orkiszewski - Palo Alto CA, US
Assignee:
Cutera, Inc. - Brisbane CA
International Classification:
A61M 1/00
US Classification:
606 34
Abstract:
Apparatus and methods for dynamically controlling electric field distribution within tissue disposed at various depths beneath the skin at a target region of a patient's body by independently controlling the electric potential of each of a plurality of electrodes in relation to the electric potential of a ground pad. By controlling electric field distribution during a procedure, a target tissue at particular depths beneath the skin can be selectively heated relative to adjacent non-target tissue. At least one of the electrodes and the ground pad may comprise a spiral inductor comprising a substantially planar spiral of electrically conductive material.
Treatment Apparatus With Frequency Controlled Treatment Depth
US Patent:
8562599, Oct 22, 2013
Filed:
May 25, 2012
Appl. No.:
13/481732
Inventors:
Greg Leyh - Brisbane CA, US
Assignee:
Cutera, Inc. - Brisbane CA
International Classification:
A61B 18/04
US Classification:
606 33
Abstract:
An electro-surgical system actively maintains an optimal heating profile at the electrode-patient contact surface under varying load resistivity, thereby reducing the risk of burns and maximizing patient comfort. A set of temperature sensors is integrated within the electrode assembly of the electrosurgical system. The sensors are located both at the center and the edges of the electrode. The sensors are thermally coupled to the electrode-patient contact surface. As RF power is applied, a control loop monitors the temperature at the center and edges of the electrode. If the edge temperature of the electrode is high compared to its center temperature, then the control loop increases the operating frequency, effectively driving heat towards the center of the electrode. Conversely, if the edge temperature of the electrode is low compared to its center temperature, then the control loop decreases the operating frequency, effectively driving heat towards the edges of the electrode.
High Conductivity Inductively Equalized Electrodes And Methods
US Patent:
2009017, Jul 2, 2009
Filed:
Dec 28, 2007
Appl. No.:
11/966895
Inventors:
Greg Leyh - Brisbane CA, US
International Classification:
A61B 18/14
US Classification:
606 35
Abstract:
Apparatus and methods for evenly distributing electric current density over a surface of at least one of an active electrode and a return electrode during electrosurgery, wherein the active and/or return electrode includes a spiral inductor. The spiral inductor may include a low electrical resistivity material or a spiral bare metal surface for contacting the patient's body. In a multi-layer spiral inductor having a plurality of stacked spirals, each turn of a first spiral may be electrically coupled in series to a radially corresponding turn of each successive one of the stacked spirals; and each turn of the innermost spiral may be electrically coupled to an adjacent, radially outward turn of the outermost spiral.
Dynamically Controllable Multi-Electrode Apparatus & Methods
US Patent:
2009030, Dec 10, 2009
Filed:
Jun 5, 2008
Appl. No.:
12/134119
Inventors:
Greg Leyh - Brisbane CA, US
Jerzy Orkiszewski - Palo Alto CA, US
Richard Canant - Pacifica CA, US
Jerzy Orkiszewski - Palo Alto CA, US
Richard Canant - Pacifica CA, US
International Classification:
A61N 1/08
US Classification:
606 34
Abstract:
Apparatus and methods for dynamically controlling a plurality of electrodes during an electrosurgical procedure, wherein each electrode may be controlled with respect to active or return electrode mode, condition, and power level. The electrodes may be disposed within a treatment chamber of a handpiece. Each electrode may comprise a spiral inductor. The handpiece may be equipped with suction and vibration means. The treatment chamber may be configured for receiving at least a portion of the target tissue therein.
Subcutaneous Electric Field Distribution System And Methods
US Patent:
2009031, Dec 24, 2009
Filed:
Jun 24, 2008
Appl. No.:
12/144948
Inventors:
GREG LEYH - Brisbane CA, US
Jerzy Orkiszewski - Palo Alto CA, US
Jerzy Orkiszewski - Palo Alto CA, US
International Classification:
A61B 18/14
US Classification:
606 34
Abstract:
Apparatus and methods for dynamically controlling electric field distribution within tissue disposed at various depths beneath the skin at a target region of a patient's body by independently controlling the electric potential of each of a plurality of electrodes in relation to the electric potential of a ground pad. By controlling electric field distribution during a procedure, a target tissue at particular depths beneath the skin can be selectively heated relative to adjacent non-target tissue. At least one of the electrodes and the ground pad may comprise a spiral inductor comprising a substantially planar spiral of electrically conductive material.
Symmetrical Rf Electrosurgical System And Methods
US Patent:
2010002, Jan 28, 2010
Filed:
Dec 8, 2008
Appl. No.:
12/330032
Inventors:
David A. Gollnick - San Francisco CA, US
Greg Leyh - Brisbane CA, US
Greg Leyh - Brisbane CA, US
International Classification:
A61B 18/18
A61B 18/14
A61B 18/14
US Classification:
606 33, 606 41
Abstract:
Systems, apparatus, and methods for treating a patient's tissue via electric energy delivered concurrently from a first electrode of a first handpiece and a second electrode of a second handpiece. Each of the first and second handpieces may have the same or similar structure and may be separately manipulable to different locations on the patient's skin to allow the rapid treatment of target tissue(s) at various regions of the patient's body. The first and second handpieces may each be coupled to an electrosurgical generator configured for providing first and second AC voltages of equal magnitude and opposite polarity to the first and second electrodes, respectively. The first and second electrodes may each comprise a spiral inductor.
Self-Calibrating Ultrasound Systems And Methods
US Patent:
2010012, May 27, 2010
Filed:
Nov 24, 2008
Appl. No.:
12/276642
Inventors:
Greg Leyh - Brisbane CA, US
Justin May - Redwood City CA, US
Tonee Smith - Redwood City CA, US
Justin May - Redwood City CA, US
Tonee Smith - Redwood City CA, US
International Classification:
G01H 13/00
G01N 29/00
G01N 29/00
US Classification:
73579, 73 182
Abstract:
Systems, apparatus, and methods for controlling acoustic power delivery at ultrasonic frequencies. An embodiment of the invention comprises an ultrasonic device including an ultrasonic transducer and an acoustic sensor having a fixed acoustic coupling to the transducer. A method of the invention may include sensing acoustic power output from the ultrasonic transducer in response to a calibration signal, and determining a drive frequency for a working drive signal to enable efficient and controllable operation of the transducer. The invention may be used for automatically re-calibrating ultrasound systems for optimum performance at frequencies including the range of 3 to 12 MHz.
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