David H Humber, Age 74Saratoga, CA

David Humber Phones & Addresses

Saratoga, CA

Emerald Hills, CA

Salt Lake City, UT

13565 Indian Rock Way, Los Gatos, CA 95033

Cupertino, CA

Mentions for David H Humber

David Humber resumes & CV records

Resumes

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Medical Doctor

Industry:
Medical Practice
Work:
David Humber Md
Medical Doctor
David Humber Photo 33

David Humber

Publications & IP owners

Us Patents

Integrated Bearing Assembly

US Patent:
6940947, Sep 6, 2005
Filed:
Sep 5, 2002
Appl. No.:
10/235457
Inventors:
David H. Humber - Saratoga CA, US
Steve G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
Gary F. Virshup - Cupertino CA, US
Assignee:
Varian Medical Systems Technologies, Inc. - Palo Alto CA
International Classification:
H01J035/10
US Classification:
378132, 378125
Abstract:
An integrated bearing assembly is provided, comprising a bearing housing defining an axial cavity in which a shaft is disposed. The shaft is rotatably supported by at least two bearing sets. The axial cavity defines three regions, each having distinct diameters. A pair of first regions defines cavity diameters sufficient to receive the bearing sets. A pair of second regions defines cavity diameters such that a small gap is defined between the inner surface of the cavity and the shaft. The third region cooperates with the shaft to define a cylindrical volume containing a coolant. Wettable coatings are utilized in the cylindrical volume to allow free flow of, and maximum contact with, the coolant. Non-wettable coatings are provided in the second regions to contain the coolant. The second regions also function as bearing spacers, thus simplifying bearing assembly design, assembly, and performance.

Contrast-Enhanced Cone Beam X-Ray Imaging, Evaluation, Monitoring And Treatment Delivery

US Patent:
7394889, Jul 1, 2008
Filed:
May 18, 2006
Appl. No.:
11/437076
Inventors:
Larry D. Partain - Los Altos CA, US
Stavros Prionas - Menlo Park CA, US
Edward Seppi - Portola Valley CA, US
Robert Sutherland - Menlo Park CA, US
David Humber - Los Gatos CA, US
Hassan Mostafavi - Los Altos CA, US
Felix Fernando - Workingham, GB
John Boone - Folsom CA, US
Assignee:
Varian Medical Systems Technologies, Inc. - Palo Alto CA
International Classification:
A61B 6/04
US Classification:
378 37, 376 4, 376 21, 376 65, 376 68
Abstract:
A method of imaging a patient's uncompressed region of interest using X-ray cone beam computed tomography or cone beam digital tomography comprises the step of introducing an effective amount of a contrast agent to the uncompressed region of interest. A system for imaging a patient's uncompressed region of interest using cone beam computed tomography (CBCT) or cone beam digital tomography (CBDT) comprises an X-ray source transmitting an X-ray to the uncompressed region of interest, an image acquisition system acquiring a plurality of two-dimensional projection images data for a CBCT or CBDT data set with at least one of the projection images acquired in 35 milliseconds or less, and a processor generating a three-dimensional computed tomography image data set resolving voxels with dimensions of 0. 4 mm or less in at least two orthogonal directions.

System And Method For Imaging And Treatment Of Tumorous Tissue In Breasts Using Computed Tomography And Radiotherapy

US Patent:
7492858, Feb 17, 2009
Filed:
May 20, 2005
Appl. No.:
11/134695
Inventors:
Larry D. Partain - Los Altos CA, US
David H. Humber - Los Altos CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
A61B 6/03
A61B 6/04
US Classification:
378 37, 378 20, 378196, 378209, 5601
Abstract:
The present invention provides a system for irradiating a breast of a patient. The system comprises a gantry rotatable about a horizontal axis and comprising a radiation source for generating a radiation beam and a detector spaced from the radiation source , and a barrier disposed between the patient and the gantry. The barrier is provided with an opening adapted to allow a breast passing therethrough to be exposed to the radiation beam. In some embodiments, the barrier is provided with an opening adapted to allow both the breast and the tissue leading from the breast to axilla and the muscle tissue of the adjacent chest wall passing therethrough to be exposed to the radiation beam.

Filament Assembly Having Reduced Electron Beam Time Constant

US Patent:
7539286, May 26, 2009
Filed:
Nov 19, 2007
Appl. No.:
11/942656
Inventors:
Steve Bandy - Sunnyvale CA, US
Gary F Virshup - Cupertino CA, US
Michael Curzon Green - Palo Alto CA, US
James Russell Boye - Salt Lake City UT, US
Dennis Runnoe - Salt Lake City UT, US
Robert Clark Treseder - Lynchburg VA, US
David Humber - Los Gatos CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/06
US Classification:
378136, 378121
Abstract:
A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

Contrast-Enhanced Cone Beam X-Ray Imaging, Evaluation, Monitoring And Treatment Delivery

US Patent:
7660384, Feb 9, 2010
Filed:
May 23, 2008
Appl. No.:
12/126224
Inventors:
Larry Partain - Los Altos CA, US
Stavros Prionas - Menlo Park CA, US
Edward Seppi - Portola Valley CA, US
Robert Sutherland - Menlo Park CA, US
David Humber - Los Gatos CA, US
Hassan Mostafavi - Los Altos CA, US
Felix Fernando - Workingham Berks, GB
John Boone - Folsom CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
A61B 6/04
US Classification:
378 37, 378 4, 378 21, 378 65
Abstract:
A method of imaging a patient's uncompressed region of interest using X-ray cone beam computed tomography or cone beam digital tomography comprises the step of introducing an effective amount of a contrast agent to the uncompressed region of interest. A system for imaging a patient's uncompressed region of interest using cone beam computed tomography (CBCT) or cone beam digital tomography (CBDT) comprises an X-ray source transmitting an X-ray to the uncompressed region of interest, an image acquisition system acquiring a plurality of two-dimensional projection images data for a CBCT or CBDT data set with at least one of the projection images acquired in 35 milliseconds or less, and a processor generating a three-dimensional computed tomography image data set resolving voxels with dimensions of 0. 4 mm or less in at least two orthogonal directions.

System And Method For Imaging And Treatment Of Tumorous Tissue In Breasts Using Computed Tomography And Radiotherapy

US Patent:
7817774, Oct 19, 2010
Filed:
Sep 9, 2008
Appl. No.:
12/197510
Inventors:
Larry D. Partain - Los Altos CA, US
David Humber - Los Gatos CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
A61B 6/04
A61N 5/10
G21K 5/08
US Classification:
378 37, 378 20, 378 64, 378 65, 378 68, 378209, 5601
Abstract:
The present invention provides a system for irradiating a breast of a patient. The system comprises a gantry rotatable about a horizontal axis and comprising a radiation source for generating a radiation beam and a detector spaced from the radiation source , and a barrier disposed between the patient and the gantry. The barrier is provided with an opening adapted to allow a breast passing therethrough to be exposed to the radiation beam. In some embodiments, the barrier is provided with an opening adapted to allow both the breast and the tissue leading from the breast to axilla and the muscle tissue of the adjacent chest wall passing therethrough to be exposed to the radiation beam.

Methods And Systems For Treating Breast Cancer Using External Beam Radiation

US Patent:
7940891, May 10, 2011
Filed:
Oct 22, 2008
Appl. No.:
12/256461
Inventors:
Josh Star-Lack - Palo Alto CA, US
David Humber - Los Gatos CA, US
Karla Knott - Redwood Shores CA, US
Corey Zankowski - San Jose CA, US
Michael C. Green - Palo Alto CA, US
Gary Virshup - Cupertino CA, US
James Clayton - San Jose CA, US
Michelle M. Svatos - Oakland CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
A61N 5/00
US Classification:
378 65, 378195
Abstract:
A radiation apparatus includes a radiation source movable in translational and/or rotational degrees of freedom, and a structure adapted to support a body. The structure is provided with an opening to allow a portion of the body passing through to be exposed to at least a portion of the therapeutic radiation while in use.

Electron Emitter And Method Of Making Same

US Patent:
8175222, May 8, 2012
Filed:
Aug 27, 2009
Appl. No.:
12/488407
Inventors:
Paul D. Moore - Salt Lake City UT, US
Stephen G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
David H. Humber - Los Gatos CA, US
Gary F. Virshup - Cupertino CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/00
US Classification:
378136, 378129
Abstract:
One example embodiment includes an electron emitter. The electron emitter comprises a conductive member that defines a plurality of filament segments that are integral with each other. Each filament segment includes an intermediate portion and an interconnecting portion attached to an adjacent filament segment. The intermediate portions are substantially coplanar with each other and each intermediate portion includes a substantially planar electron emission surface.

Isbn (Books And Publications)

Immunological Aspects Of Leprosy, Tuberculosis And Leishmaniasis: Proceedings Of A Meeting Held In Addis Ababa, Ethiopia, 27-30 October, 1980

Author:
David P. Humber
ISBN #:
0444902511

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