Kenneth R Stalder from 837 E Greenwich Pl, Palo Alto, CA 94303, age 73, Phone: 415 327-8548

Us Patents

Hard Tissue Ablation System
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US Patent:

8114071, Feb 14, 2012
Filed:

May 29, 2007
Appl. No.:

11/754551
Inventors:

Jean Woloszko - Austin TX, US
Kenneth R. Stalder - Redwood City CA, US
Assignee:

ArthroCare Corporation - Austin TX
International Classification:

A61B 18/14
US Classification:

606 32, 606 41
Abstract:

An electrosurgical system and method for treating hard and soft tissues in the body comprises a shaft, a distal end section, an active electrode associated with the distal end section, a first fluid supply adapted to deliver a first electrically conductive fluid to the target site, and a second fluid supply adapted to deliver a second electrically conductive fluid to the active electrode. The system is adapted to treat a wide variety of hard tissues such as, for example, bones, calcified structures, calcified deposits, teeth, plaque, kidney-stones, gall-stones and other types of tissue by generating plasma in the vicinity of the active electrode, and applying the plasma to the tissue or structures.

Hard Tissue Ablation System
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US Patent:

8444638, May 21, 2013
Filed:

Jan 6, 2012
Appl. No.:

13/344988
Inventors:

Jean Woloszko - Austin TX, US
Kenneth R. Stalder - Redwood City CA, US
Assignee:

ArthroCare Corporation - Austin TX
International Classification:

A61B 18/14
US Classification:

606 41, 606 32
Abstract:

An electrosurgical system and method for treating hard and soft tissues in the body comprises a shaft, a distal end section, an active electrode associated with the distal end section, a first fluid supply adapted to deliver a first electrically conductive fluid to the target site, and a second fluid supply adapted to deliver a second electrically conductive fluid to the active electrode. The system is adapted to treat a wide variety of hard tissues such as, for example, bones, calcified structures, calcified deposits, teeth, plaque, kidney-stones, gall-stones and other types of tissue by generating plasma in the vicinity of the active electrode, and applying the plasma to the tissue or structures.

Electrosurgical Apparatus With Low Work Function Electrode
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US Patent:

20120083782, Apr 5, 2012
Filed:

Oct 4, 2010
Appl. No.:

12/897311
Inventors:

Kenneth R. Stalder - Redwood City CA, US
Jean Woloszko - Austin TX, US
Richard Christensen - San Francisco CA, US
Assignee:

ArthroCare Corporation - Austin TX
International Classification:

A61B 18/14
US Classification:

606 41
Abstract:

An electrosurgical apparatus includes an active electrode with a low-work function coating to improve ablation performance. Low-work function coatings include compounds of alkali metals and alkali earth metals. Additionally, the active electrode may include various micro-structures or asperities or nano-structures or asperities. An array of carbon nanotubes may be aligned and secured on the active electrode. A return electrode comprises a high-work function coating to suppress electrical discharge activity on the return electrode.

Magnetic Field-Enhanced Plasma Etch Reactor
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US Patent:

48426830, Jun 27, 1989
Filed:

Apr 25, 1988
Appl. No.:

7/185215
Inventors:

David Cheng - San Jose CA
Dan Maydan - Los Altos Hills CA
Sasson Somekh - Los Altos Hills CA
Kenneth R. Stalder - Redwood City CA
Dana L. Andrews - Mountain View CA
Mei Chang - San Jose CA
John M. White - Hayward CA
Jerry Y. K. Wong - Fremont CA
Vladimir J. Zeitlin - Santa Clara CA
David N. Wang - Cupertino CA
Assignee:

Applied Materials, Inc. - Santa Clara CA
International Classification:

B44C 122
C03C 1500
C03C 2506
H01L 21306
US Classification:

156345
Abstract:

A magnetic field enhanced single wafer plasma etch reactor is disclosed. The features of the reactor include an electrically-controlled stepped magnetic field for providing high rate uniform etching at high pressures; temperature controlled reactor surfaces including heated anode surfaces (walls and gas manifold) and a cooled wafer supporting cathode; and a unitary wafer exchange mechanism comprising wafer lift pins which extend through the pedestal and a wafer clamp ring. The lift pins and clamp ring are moved vertically by a one-axis lift mechanism to accept the wafer from a cooperating external robot blade, clamp the wafer to the pedestal and return the wafer to the blade. The electrode cooling combines water cooling for the body of the electrode and a thermal conductivity-enhancing gas parallel-bowed interface between the wafer and electrode for keeping the wafer surface cooled despite the high power densities applied to the electrode. A gas feed-through device applies the cooling gas to the RF powered electrode without breakdown of the gas. Protective coatings/layers of materials such as quartz are provided for surfaces such as the clamp ring and gas manifold.

Magnetic Field-Enhanced Plasma Etch Reactor
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US Patent:

52156192, Jun 1, 1993
Filed:

Sep 17, 1991
Appl. No.:

7/760848
Inventors:

David Cheng - San Jose CA
Dan Maydan - Los Altos Hills CA
Sasson Somekh - Los Altos Hills CA
Kenneth R. Stalder - Redwood City CA
Dana L. Andrews - Mountain View CA
Mei Chang - San Jose CA
John M. White - Hayward CA
Jerry Y. K. Wong - Fremont CA
Vladimir J. Zeitlin - Santa Clara CA
David N. Wang - Cupertino CA
Assignee:

Applied Materials, Inc. - Santa Clara CA
International Classification:

B44C 122
US Classification:

156345
Abstract:

A magnetic field enhanced single wafer plasma etch reactor is disclosed. The features of the reactor include an electrically-controlled stepped magnetic field for providing high rate uniform etching at high pressures; temperature controlled reactor surfaces including heated anode surfaces (walls and gas manifold) and a cooled wafer supporting cathode; and a unitary wafer exchange mechanism comprising wafer lift pins which extend through the pedestal and a wafer clamp ring. The lift pins and clamp ring are moved vertically by a one-axis lift mechanism to accept the wafer from a cooperating external robot blade, clamp the wafer to the pedestal and return the wafer to the blade. The electrode cooling combines water cooling for the body of the electrode and a thermal conductivity-enhancing gas parallel-bowed interface between the wafer and electrode for keeping the wafer surface cooled despite the high power densities applied to the electrode. A gas feed-through device applies the cooling gas to the RF powered electrode without breakdown of the gas. Protective coatings/layers of materials such as quartz are provided for surfaces such as the clamp ring and gas manifold.

System And Method For Detecting Tissue State And Infection During Electrosurgical Treatment Of Wound Tissue
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US Patent:

20140276201, Sep 18, 2014
Filed:

Mar 10, 2014
Appl. No.:

14/202400
Inventors:

- AUSTIN TX, US
Thomas P. Ryan - Austin TX, US
Kenneth R. Stalder - Redwood City CA, US
Assignee:

ARTHROCARE CORPORATION - AUSTIN TX
International Classification:

A61B 18/18
A61B 5/145
US Classification:

600562, 606 34, 606 33
Abstract:

A method exposes a wound bed to electrosurgical treatment to generate fragmented wound tissue, gathers a molecular gaseous by-product sample of the fragmented wound tissue, and analyzes the molecular gaseous by-product sample of the fragmented wound tissue to generate a fragmented wound tissue compound analysis profile. The method further compares the fragmented wound tissue compound analysis profile with a database of known compound analysis profiles and provides a diagnosis of the wound tissue based on the comparison of compound analysis profiles.

Methods And Systems Related To Electrosurgical Wands
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US Patent:

20140257279, Sep 11, 2014
Filed:

Feb 25, 2014
Appl. No.:

14/189537
Inventors:

- Austin TX, US
Kenneth R. Stalder - Redwood City CA, US
Duane W. Marion - Pleasanton CA, US
Assignee:

ArthroCare Corporation - Austin TX
International Classification:

A61B 18/04
US Classification:

606 41
Abstract:

Electrosurgical wands. At least some of the illustrative embodiments are electrosurgical wands having features that reduce contact of tissue with an active electrode of a wand, decrease the likelihood of clogging, and/or increase the visibility within surgical field. For example, wands in accordance with at least some embodiments may comprise standoffs, either along the outer perimeter of the active electrode, or through the main aperture in the active electrode, to reduce tissue contact. Wands in accordance with at least some embodiments may implement slots on the active electrodes to increase bubble aspiration to help keep the visual field at the surgical site clear. Wands in accordance with at least some embodiments may implement aspiration flow pathways within the wand that increase in cross-sectional area to reduce the likelihood of clogging.