ROBERT ALEXANDER PROUDFOOT
Pilots at Tracy Dr, Santa Clara, CA
License number
California A2321556
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
3511 Tracy Dr, Santa Clara, CA 95051
Professional information
Radial Pocket Forming And Insert Positioning Instruments, Corneal Marker, And Method For Using Same
US Patent:
6251118, Jun 26, 2001
Filed:
Apr 14, 1998
Appl. No.:
9/060223
Inventors:
Robert A. Proudfoot - Santa Clara CA
John A. Scholl - Danville CA
Thomas A. Silvestrini - Alamo CA
Sid Gandionco - Fremont CA
John A. Scholl - Danville CA
Thomas A. Silvestrini - Alamo CA
Sid Gandionco - Fremont CA
Assignee:
KeraVision, Inc. - Fremont CA
International Classification:
A61F 900
US Classification:
606166
Abstract:
Instruments and methods are provided which permit a surgeon to implant multiple radial inserts within a patient's cornea through one or more incisions made into the cornea. Instruments provided by the invention include a corneal marker, a radial pocket-forming instrument, and a positioning instrument. In one method provided by the invention, the surgeon uses the corneal marker to mark the patient's cornea with an incision mark, radial pocket marks, and circumferential channels marks simultaneously. The surgeon forms clockwise and counter-clockwise intrastromal circumferential channels through a single incision into the cornea, and then the surgeon inserts the radial pocket-forming instrument through the incision and into one of the circumferential channels to form radial pockets beneath the radial pocket marks. The surgeon inserts radial intrastromal inserts through the incision and into the circumferential channels and positions them within the radial pockets using the positioning instrument.
Device And Method For Inserting A Biocompatible Material Into The Corneal Stroma
US Patent:
6565584, May 20, 2003
Filed:
Oct 20, 1997
Appl. No.:
08/947733
Inventors:
Mark L. Mathis - Fremont CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
Assignee:
Addition Technology, Inc. - Fremont CA
International Classification:
A61F 900
US Classification:
606166, 606107, 128898
Abstract:
This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a biocompatible material. The biocompatible polymer may be an intrastromal corneal ring (ICR). The method involves the use of clockwise and counter-clockwise dissectors, and optionally channel connectors and finish channel connectors. The kit contains clockwise and counter-clockwise dissectors and optionally channel connectors, finish channel connectors and probes.
Radial Intrastromal Corneal Insert And A Method Of Insertion
US Patent:
2004007, Apr 15, 2004
Filed:
Dec 18, 1997
Appl. No.:
08/993696
Inventors:
DAVID J. SCHANZLIN - LA JOLLA CA, US
STEVEN M. VERITY - ST LOUIS MO, US
THOMAS A. SILVESTRINI - ALAMO CA, US
ROBERT A. PROUDFOOT - SANTA CLARA CA, US
STEVEN M. VERITY - ST LOUIS MO, US
THOMAS A. SILVESTRINI - ALAMO CA, US
ROBERT A. PROUDFOOT - SANTA CLARA CA, US
Assignee:
HARRY J. MACEY
International Classification:
A61F002/14
US Classification:
623/005160, 623/005110, 606/107000, 606/166000
Abstract:
The subject invention relates to an intrastromal corneal insert designed to be meridionally situated in an interlamellar pocket or channel made within the cornea of a mammalian eye. The insert has a shape which, when inserted into the cornea, has a significant meridional dimension and may be used to adjust corneal curvature and thereby correct or improve vision abnormalities such as hyperopia. The inserts may also have a circumferential component to their configuration to allow concurrent correction of other vision abnormalities. The radial insert may be made of a physiologically compatible material, e.g., one or more synthetic or natural, soft, firm, or gelatinous polymers. In addition, the insert or segment may be used to deliver therapeutic or diagnostic agents to the corneal interior or to the interior of the eye. One or more of the radial inserts of this invention typically are inserted into the cornea so that each subtends a portion of the meridian of the cornea outside of the cornea's central area, e.g., the area through which vision is achieved, but within the cornea's frontal diameter. Typically, the insert is used in arrays of two or more to correct specific visual abnormalities, but may be used in isolation when such is called for. The invention also includes both a minimally invasive procedure for inserting one or more of the devices into the cornea using procedures beginning within the cornea as well as procedures beginning in the sclera.
Systems And Methods For Glare Removal Using Polarized Filtering In Document Scanning
US Patent:
8174739, May 8, 2012
Filed:
Jul 14, 2009
Appl. No.:
12/503041
Inventors:
Robert A. Proudfoot - Santa Clara CA, US
Marc Levoy - Stanford CA, US
Marc Levoy - Stanford CA, US
Assignee:
Google Inc. - Mountain View CA
International Classification:
H04N 1/04
US Classification:
358475, 358474, 358505, 358512
Abstract:
Systems and methods using polarized filtering for glare removal to improve the process of scanning documents, particularly bound documents with glossy content, are disclosed. The system may generally include a lighting source for illuminating a document, a lighting source polarizer attached to the lighting source to polarize light therefrom, a camera for capturing images of the document, and a camera polarizer attached to the camera. The camera polarizer and the lighting source polarizer may be positioned relative to each other so as to facilitate blocking light reflections causing glare off of the document resulting from the lighting source and arriving at the camera. The system may include multiple lighting sources, some or all of which may have a lighting source polarizer attached thereto.
System For Inserting Material Into Corneal Stroma
US Patent:
5843105, Dec 1, 1998
Filed:
Aug 6, 1996
Appl. No.:
8/676377
Inventors:
Mark L. Mathis - Fremont CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
International Classification:
A61F 900
US Classification:
606166
Abstract:
This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a bio-compatible material. The method involves the use of clockwise and counter-clockwise dissectors and optionally channel connectors and finish channel connector.
Heliostat Mirror With Supporting Rib Structure
US Patent:
2013000, Jan 3, 2013
Filed:
Jun 29, 2011
Appl. No.:
13/172761
Inventors:
Robert A. Proudfoot - Santa Clara CA, US
David K. Fork - Mountain View CA, US
Jonathan P. Switkes - San Jose CA, US
David K. Fork - Mountain View CA, US
Jonathan P. Switkes - San Jose CA, US
International Classification:
G02B 7/192
US Classification:
359853, 359871
Abstract:
A mirror module including one or more rib elements made of the same materials as a rear plate and/or front plate. The rib elements are placed between the rear glass plate and the front glass plate to afford rigidity to the mirror module. Since the rib elements are made of the same materials as the rear plate and/or front plate, the rib elements have the same or similar coefficients of thermal expansion as the rear plate or the front plate. Consequently, when the mirror module is subject to temperature fluctuation, the rib elements exert less stress on the glass plates compared to structure elements made of the materials different from the rear or front glass plate. The rib elements may also be integrated with the rear plate to simplify the process for manufacturing the mirror module.
Device And Method For Inserting A Biocompatible Material Into The Corneal Stroma
US Patent:
2004010, Jun 3, 2004
Filed:
May 20, 2003
Appl. No.:
10/442425
Inventors:
Mark Mathis - Fremont CA, US
John Scholl - Danville CA, US
Robert Proudfoot - Santa Clara CA, US
Thomas Silvestrini - Alamo CA, US
John Scholl - Danville CA, US
Robert Proudfoot - Santa Clara CA, US
Thomas Silvestrini - Alamo CA, US
International Classification:
A61F009/00
US Classification:
606/166000
Abstract:
This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a biocompatible material. The biocompatible polymer may be an intrastromal corneal ring (ICR). The method involves the use of clockwise and counter-clockwise dissectors, and optionally channel connectors and finish channel connectors. The kit contains clockwise and counter-clockwise dissectors and optionally channel connectors, finish channel connectors and probes.
Device And Method For Inserting A Biocompatible Material Into The Corneal Stroma
US Patent:
5846256, Dec 8, 1998
Filed:
Jun 5, 1995
Appl. No.:
8/462297
Inventors:
Mark L. Mathis - Fremont CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
Thomas A. Silvestrini - Alamo CA
Assignee:
KeraVision, Inc. - Fremont CA
International Classification:
A61F 900
US Classification:
606166
Abstract:
This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a biocompatible material. The biocompatible polymer may be an intrastromal corneal ring (ICR). The method involves the use of clockwise and counter-clockwise dissectors, and optionally channel connectors and finish channel connectors. The kit contains clockwise and counter-clockwise dissectors and optionally channel connectors, finish channel connectors and probes.
Corneal Refractive Properties Altering Device And Method
US Patent:
2002005, May 16, 2002
Filed:
Apr 9, 1997
Appl. No.:
08/827624
Inventors:
THOMAS A. SILVESTRINI - ALAMO CA, US
MARK L. MATHIS - FREMONT CA, US
JOHN A. SCHOLL - DANVILLE CA, US
ROBERT A. PROUDFOOT - SANTA CLARA CA, US
MARK L. MATHIS - FREMONT CA, US
JOHN A. SCHOLL - DANVILLE CA, US
ROBERT A. PROUDFOOT - SANTA CLARA CA, US
International Classification:
A61F002/14
US Classification:
623/005120
Abstract:
A device and method for refractive correction of the eye in order to improve the vision of the eye. The device is an intrastromal corneal ring (ICR) where the cone angle is varied according to the desired change in corneal refractive properties. The method involves the insertion of the ICR with appropriate cone angle for the desired change those properties.
Corneal Vacuum Centering Device
US Patent:
6143010, Nov 7, 2000
Filed:
Jul 18, 1997
Appl. No.:
8/896754
Inventors:
Thomas A. Silvestrini - Alamo CA
Robert A. Proudfoot - Santa Clara CA
John A. Scholl - Danville CA
Robert A. Proudfoot - Santa Clara CA
John A. Scholl - Danville CA
Assignee:
Kera Vision Inc. - Freemont CA
International Classification:
A61F 900
US Classification:
606166
Abstract:
This invention is a vacuum centering device which may be used in conjunction with other surgical instruments in opthomological surgery. The device provides an improved interface with the eye by way of features that reduce interference with a patient's eyelids interocular pressure and/or the propensity to rotate. These features may include a flared outer wall portion which may either be curved or straight for a section, providing a low profile vacuum chamber, and/or the use of a non-circular outer sealing region potentially producing a saddle-shaped outer periphery providing for potentially increased vacuum exposure to the eye and a contour resistant to rotation.