BRADLEY B. HILL, MD
Radiology at Lawrence Expy, Santa Clara, CA

License number
California A61409
Category
Radiology
Type
Vascular Surgery
Address
Address 2
710 Lawrence Expy, Santa Clara, CA 95051
1800 Harrison St FL 7, Oakland, CA 94612
Phone
(408) 851-1000
(510) 625-6262

Professional information

Bradley B Hill Photo 1

Dr. Bradley B Hill, Santa Clara CA - MD (Doctor of Medicine)

Specialties:
General Surgery, Vascular Surgery
Address:
The Permanente Medical Group
710 Lawrence Expy, Santa Clara 95051
(408) 236-6400 (Phone)
Kaiser Permanente
710 Lawrence Expy, Santa Clara 95051
(408) 236-6400 (Phone)
Procedures:
Aortic Repair, Open or Repair of Arterial Aneurysm, Open, Carotid Endarterectomy (CEA) or Excision of Infected Graft, Endovascular Repair of Aorta, Non-Coronary Angioplasty, Atherectomy, and Stenting
Conditions:
Aortic Aneurysm, Carotid Artery Disease, Cerebral Vascular Disease, Deep Vein Thrombosis (DVT), Transient Ischemic Attack (TIA), Venous Embolism and Thrombosis
Certifications:
General Surgery, 1998, Vascular Surgery, 1999
Awards:
Healthgrades Honor Roll
Languages:
English
Hospitals:
The Permanente Medical Group
710 Lawrence Expy, Santa Clara 95051
Kaiser Permanente
710 Lawrence Expy, Santa Clara 95051
Kaiser Permanente South Sacramento Medical Center
6600 Bruceville Rd, Sacramento 95823
Education:
Medical School
Baylor College of Medicine
Graduated: 1991
University Ky
Graduated: 1997
Stanford University Med Center


Bradley Hill Photo 2

Endovascular Access And Guidance System Utilizing Divergent Beam Ultrasound

US Patent:
2007001, Jan 18, 2007
Filed:
May 8, 2006
Appl. No.:
11/431118
Inventors:
Sorin Grunwald - Palo Alto CA, US
Bradley Hill - Santa Clara CA, US
International Classification:
A61B 8/14
US Classification:
600468000
Abstract:
The invention relates to the guidance, positioning and placement confirmation of intravascular devices, such as catheters, stylets, guidewires and other flexible elongate bodies that are typically inserted percutaneously into the venous or arterial vasculature. Currently these goals are achieved using x-ray imaging and in some cases ultrasound imaging. This invention provides a method to substantially reduce the need for imaging related to placing an intravascular catheter or other device. Reduced imaging needs also reduce the amount of radiation that patients are subjected to, reduce the time required for the procedure, and decrease the cost of the procedure by reducing the time needed in the radiology department. An aspect of the invention includes, for example, an endovenous access and guidance system. The system comprises: an elongate flexible member adapted and configured to access the venous vasculature of a patient; a sensor disposed at a distal end of the elongate flexible member and configured to provide in vivo non-image based ultrasound information of the venous vasculature of the patient; a processor configured to receive and process in vivo non-image based ultrasound information of the venous vasculature of the patient provided by the sensor and to provide position information regarding the position of the distal end of the elongate flexible member within the venous vasculature of the patient; and an output device adapted to output the position information from the processor.


Bradley Hill Photo 3

Ultrasound Methods Of Positioning Guided Vascular Access Devices In The Venous System

US Patent:
8409103, Apr 2, 2013
Filed:
May 8, 2006
Appl. No.:
11/430511
Inventors:
Sorin Grunwald - Palo Alto CA, US
Bradley Hill - Santa Clara CA, US
Assignee:
VasoNova, Inc. - Menlo Park CA
International Classification:
A61B 8/14
US Classification:
600468
Abstract:
The invention relates to the guidance, positioning and placement confirmation of intravascular devices, such as catheters, stylets, guidewires and other flexible elongate bodies that are typically inserted percutaneously into the venous or arterial vasculature. An aspect of the invention includes, for example, an endovenous access and guidance system. The system comprises: an elongate flexible member adapted and configured to access the venous vasculature of a patient; a sensor disposed at a distal end of the elongate flexible member and configured to provide in vivo non-image based ultrasound information of the venous vasculature of the patient; a processor configured to receive and process in vivo non-image based ultrasound information of the venous vasculature of the patient provided by the sensor and to provide position information regarding the position of the distal end of the elongate flexible member within the venous vasculature of the patient; and an output device adapted to output the position information from the processor.


Bradley Hill Photo 4

Endovenous Access And Guidance System Utilizing Non-Image Based Ultrasound

US Patent:
2007001, Jan 18, 2007
Filed:
May 8, 2006
Appl. No.:
11/431140
Inventors:
Sorin Grunwald - Palo Alto CA, US
Bradley Hill - Santa Clara CA, US
International Classification:
A61B 8/14
US Classification:
600468000
Abstract:
The invention relates to the guidance, positioning and placement confirmation of intravascular devices, such as catheters, stylets, guidewires and other flexible elongate bodies that are typically inserted percutaneously into the venous or arterial vasculature. Currently these goals are achieved using x-ray imaging and in some cases ultrasound imaging. This invention provides a method to substantially reduce the need for imaging related to placing an intravascular catheter or other device. Reduced imaging needs also reduce the amount of radiation that patients are subjected to, reduce the time required for the procedure, and decrease the cost of the procedure by reducing the time needed in the radiology department. An aspect of the invention includes, for example, an endovenous access and guidance system. The system comprises: an elongate flexible member adapted and configured to access the venous vasculature of a patient; a sensor disposed at a distal end of the elongate flexible member and configured to provide in vivo non-image based ultrasound information of the venous vasculature of the patient; a processor configured to receive and process in vivo non-image based ultrasound information of the venous vasculature of the patient provided by the sensor and to provide position information regarding the position of the distal end of the elongate flexible member within the venous vasculature of the patient; and an output device adapted to output the position information from the processor.


Bradley B Hill Photo 5

Bradley B Hill, Santa Clara CA

Specialties:
Vascular Surgeon
Address:
710 Lawrence Expy, Santa Clara, CA 95051
Education:
Baylor University, College of Medicine - Doctor of Medicine
University of Kentucky Hospital - Residency - Surgery
Board certifications:
American Board of Surgery Certification in Surgery, American Board of Surgery Certification in Vascular Surgery (Surgery)


Bradley Hill Photo 6

Ultrasound Sensor

US Patent:
2007001, Jan 18, 2007
Filed:
May 8, 2006
Appl. No.:
11/431093
Inventors:
Sorin Grunwald - Palo Alto CA, US
Bradley Hill - Santa Clara CA, US
International Classification:
H01L 41/00, A61B 8/14
US Classification:
600468000, 310311000
Abstract:
The invention relates to the guidance, positioning and placement confirmation of intravascular devices, such as catheters, stylets, guidewires and other flexible elongate bodies that are typically inserted percutaneously into the venous or arterial vasculature. Currently these goals are achieved using x-ray imaging and in some cases ultrasound imaging. This invention provides a method to substantially reduce the need for imaging related to placing an intravascular catheter or other device. Reduced imaging needs also reduce the amount of radiation that patients are subjected to, reduce the time required for the procedure, and decrease the cost of the procedure by reducing the time needed in the radiology department. An aspect of the invention includes, for example, an endovenous access and guidance system. The system comprises: an elongate flexible member adapted and configured to access the venous vasculature of a patient; a sensor disposed at a distal end of the elongate flexible member and configured to provide in vivo non-image based ultrasound information of the venous vasculature of the patient; a processor configured to receive and process in vivo non-image based ultrasound information of the venous vasculature of the patient provided by the sensor and to provide position information regarding the position of the distal end of the elongate flexible member within the venous vasculature of the patient; and an output device adapted to output the position information from the processor.


Bradley Hill Photo 7

Endovascular Devices And Methods Of Use

US Patent:
2009017, Jul 9, 2009
Filed:
Jan 23, 2009
Appl. No.:
12/359195
Inventors:
Sorin Grunwald - Palo Alto CA, US
Bradley Hill - Santa Clara CA, US
E. Tina Cheng - Union City CA, US
International Classification:
A61B 8/06, A61B 8/14
US Classification:
600454, 600468
Abstract:
A method for evaluating flow characteristics in a vessel of a patient includes the steps of positioning a catheter having a balloon at a measuring location within the vessel; transmitting an ultrasound signal into the vessel while the balloon catheter is within the measuring location; evaluating a reflection of the ultrasound signal to determine a flow parameter within the vessel while the catheter is in the measuring position; expanding the balloon within the vessel at the measuring location; and stopping the expanding step when the result of the evaluating step is that the flow through the vessel is substantially stopped. In some embodiments, the method may further comprise the step of detecting an endovascular electrogram signal. The method may be designed for evaluating flow characteristics in a vessel of a patient while enabling the prevention of a balloon from over-expanding and/or over-distending a vessel of a patient.


Bradley Hill Photo 8

Endovascular Navigation System And Method

US Patent:
2012013, May 31, 2012
Filed:
Nov 8, 2011
Appl. No.:
13/292010
Inventors:
Wenkang QI - Cupertino CA, US
Bradley HILL - Santa Clara CA, US
Assignee:
VASONOVA, INC. - Menlo Park CA
International Classification:
A61B 8/12, A61B 5/05, A61M 25/092
US Classification:
600424, 604 9501
Abstract:
An endovascular navigation and positioning system including a transducer on a distal end of an endovascular instrument, a control system connected to the transducer, the control system being configured to generate and receive at least one acoustic signal using the transducer, a pre-processor containing computer-readable instructions for manipulating the acoustic signal input to extract information related to desired parameters, a processor configured to evaluate the parameters to generate an output related to guidance of the instrument, and an output device for displaying an indication of the output generated by the processor. The processor may evaluate the information using artificial intelligence including inference rules related to navigation state, comparisons to information in a database, and probabilities, among others. The system may use an electrical signal as a confirmation input. Further disclosed is a method of navigating and positioning an endovascular device in a vasculature.


Bradley Hill Photo 9

Apparatus And Method For Endovascular Device Guiding And Positioning Using Physiological Parameters

US Patent:
8597193, Dec 3, 2013
Filed:
Jun 26, 2008
Appl. No.:
12/147401
Inventors:
Sorin Grunwald - Palo Alto CA, US
Fiona Maria Sander - Los Altos Hills CA, US
Wilfred J. Samson - Saratoga CA, US
Bradley Hill - Santa Clara CA, US
E. Tina Cheng - Union City CA, US
Assignee:
VasoNova, Inc. - Menlo Park CA
International Classification:
A61B 8/06
US Classification:
600468
Abstract:
An endovascular access and guidance system has an elongate body with a proximal end and a distal end; a non-imaging ultrasound transducer on the elongate body configured to provide in vivo non-image based ultrasound information of the vasculature of the patient; an endovascular electrogram lead on the elongate body in a position that, when the elongate body is in the vasculature, the endovascular electrogram lead electrical sensing segment provides an in vivo electrogram signal of the patient; a processor configured to receive and process a signal from the non-imaging ultrasound transducer and a signal from the endovascular electrogram lead; and an output device configured to display a result of information processed by the processor.


Bradley Hill Photo 10

Apparatus And Method For Endovascular Device Guiding And Positioning Using Physiological Parameters

US Patent:
2013028, Oct 31, 2013
Filed:
Mar 15, 2013
Appl. No.:
13/844408
Inventors:
Sorin GRUNWALD - Palo Alto CA, US
Fiona M. Sander - Los Altos Hills CA, US
Wilfred J. Samson - Saratoga CA, US
Bradley Hill - Santa Clara CA, US
E. Tina Cheng - Union City CA, US
International Classification:
A61B 5/06, A61B 5/0205, A61B 7/04
US Classification:
600483, 600586
Abstract:
Systems and methods for determining the position of an endovascular device within the body are provided. The system can include a catheter having a tip portion that can generate sound waves which can be detected by auscultation devices which allows the position of the catheter tip to be triangulated. The acoustic triangulation system can be used in conjunction with ECG and/or ultrasound information to further refine the location of the catheter tip.