Samir P Patel

US Patent:

7585836, Sep 8, 2009

Filed:

May 13, 2005

Appl. No.:

11/129101

Inventors:

Samir R. Patel - Mountain View CA, US
Craig A. Ball - San Carlos CA, US
Jeffrey M. Elkins - Woodside CA, US

International Classification:

A61K 38/00
A61M 25/00

US Classification:

514 2, 530300, 930 50

Abstract:

The invention relates to systems and methods for local renal delivery of agents to subjects that are at risk for congestive heart failure and other conditions. The invention encompasses devices for renal drug delivery and methods of use.

US Patent:

7766961, Aug 3, 2010

Filed:

Dec 5, 2005

Appl. No.:

11/295735

Inventors:

Samir Patel - Mountain View CA, US
Jeffrey M. Elkins - Novato CA, US
Craig A. Ball - San Carlos CA, US
Vandana S. Mathur - Woodside CA, US

Assignee:

Angio Dynamics, Inc. - Latham NY

International Classification:

A61F 2/06

US Classification:

623 135

Abstract:

Bifurcated delivery assemblies provide bilateral access to first and second branch lumens extending from a main body space or lumen in a patient. One or more interventional devices are combined with the delivery assemblies for delivery s into one or both of the branch lumens. Bilateral renal stenting or embolic protection procedures are performed using the combination delivery/interventional device assemblies. Fluids may also be injected or aspirated from the assemblies. A bifurcated catheter has a first fluid port located on one bifurcation branch, a second fluid port located on a second branch of the bifurcation, and a third fluid port positioned so as to be located within a vena cava when the first and second ports are positioned bilaterally within first and second renal veins.

US Patent:

20060030814, Feb 9, 2006

Filed:

Mar 18, 2005

Appl. No.:

11/083802

Inventors:

Aurelio Valencia - East Palo Alto CA, US
Ricardo Aboytes - East Palo Alto CA, US
Jeffrey Elkins - Novato CA, US
Harry Goodson - Fremont CA, US
Samir Patel - Mountain View CA, US
Craig Ball - San Carlos CA, US
Trevor Greenan - Santa Rosa CA, US
Randy Kesten - Mountain View CA, US
Andrew Kramer - Los Gatos CA, US
Sam Payne - Santa Clara CA, US
Sophia Pesotchinsky - Los Altos Hills CA, US
Michael Rosenthal - Palo Alto CA, US

Assignee:

FlowMedica, Inc. - Fremont CA

International Classification:

A61M 31/00

US Classification:

604093010, 606191000

Abstract:

A local renal delivery system includes a flow isolation assembly and a local injection assembly. The flow isolation assembly in one mode is adapted to isolate only a partial flow region along the outer circumference along the aorta wall such that fluids inject there are maintained to flow substantially into the renal arteries. Various types of flow isolation assemblies and local injection assemblies are described.

US Patent:

20070213686, Sep 13, 2007

Filed:

Feb 3, 2006

Appl. No.:

11/347008

Inventors:

Vandana Mathur - Woodside CA, US
Craig Ball - San Carlos CA, US
Jeffrey Elkins - Novato CA, US
Harry Goodson - Fremont CA, US
Samir Patel - Mountain View CA, US

Assignee:

FlowMedica, Inc. - Fremont CA

International Classification:

A61B 19/00

US Classification:

604518000, 128898000, 604151000, 604500000, 604093010

Abstract:

An apparatus and method particularly useful in treatments and therapies directed at the kidneys such as the prevention of radiocontrast nephropathy (RCN) arising from diagnostic procedures using iodinated contrast materials. A series of treatment schemes are provided based upon local therapeutic agent delivery to the kidneys that can be used as a prophylactic treatment for patients undergoing interventional procedures that have been identified as being at an elevated risk for developing RCN as well as for low risk patients. The methods may include pre-exposure and post contrast exposure treatments alone or in combination with the local delivery of therapeutic agents to the kidneys. Among the agents identified for such treatments are normal saline and the vasodilators papaverine and fenoldopam mesylate and appropriate dosing is provided.

US Patent:

20080221551, Sep 11, 2008

Filed:

Mar 7, 2008

Appl. No.:

12/044373

Inventors:

Harry B. Goodson - Fremont CA, US
Jeffrey M. Elkins - Woodside CA, US
Samir R. Patel - Mountain View CA, US

Assignee:

FlowMedica, Inc. - Fremont CA

International Classification:

A61M 31/00
A61M 25/00

US Classification:

604508, 604284

Abstract:

Systems and methods for the clinical treatment of individuals susceptible to or suffering from acute kidney injury are provided. Drugs, biologics, or other therapies or treatments are administered by fluid agent delivery directly to the kidneys via their arterial blood supply. Bifurcated renal artery infusion catheter devices and methods can treat kidney injury in patients with locally-delivered drugs, biologics, and other agents, so as to increase the ability of the kidneys to excrete nitrogenous waste products from the blood, and prevent or ameliorate azotemia.

US Patent:

20090305990, Dec 10, 2009

Filed:

Jul 29, 2009

Appl. No.:

12/511328

Inventors:

Harry Burt Goodson - Fremont CA, US
Samir R. Patel - Mountain View CA, US
Craig A. Ball - San Carlos CA, US
Jeffrey M. Elkins - Woodside CA, US

International Classification:

A61K 38/16
A61K 38/02
A61P 9/00
A61M 25/01

US Classification:

514 12, 514 2, 514 13, 604508, 604524

Abstract:

The invention relates to systems and methods for local renal delivery of agents to subjects that are at risk for congestive heart failure and other conditions. The invention encompasses devices for renal drug delivery and method of use.

US Patent:

20140025037, Jan 23, 2014

Filed:

Sep 23, 2013

Appl. No.:

14/033680

Inventors:

Aurelio Valencia - East Palo Alto CA, US
Samir R. Patel - Mountain View CA, US
Ricardo Aboytes - East Palo Alto CA, US
Harry B. Goodson - Fremont CA, US
Craig A. Ball - San Carlos CA, US

Assignee:

AngioDynamics, Inc. - Latham NY

International Classification:

A61M 25/00

US Classification:

604508

Abstract:

A renal flow system injects a volume of fluid agent into a location within an abdominal aorta in a manner that flows bi-laterally into each of two renal arteries via their respectively spaced ostia along the abdominal aorta wall. A local injection assembly includes two injection members, each having an injection port that couples to a source of fluid agent externally of the patient. The injection ports may be positioned with an outer region of blood flow along the abdominal aorta wall perfusing the two renal arteries. A flow isolation assembly may isolate flow of the injected agent within the outer region and into the renals. The injection members are delivered to the location in a first radially collapsed condition, and bifurcate across the aorta to inject into the spaced renal ostia. A delivery catheter for upstream interventions is used as a chassis to deliver a bilateral local renal injection assembly to the location within the abdominal aorta.

US Patent:

60473460, Apr 4, 2000

Filed:

Feb 2, 1998

Appl. No.:

9/017529

Inventors:

Benedict C. Lau - San Jose CA
Jason Wei - Cupertino CA
Samir A. Patel - Los Altos CA
Yiu-Fai Chan - Los Altos Hills CA

Assignee:

Rambus Inc. - Mountain View CA

International Classification:

G06F 1314

US Classification:

710126

Abstract:

An interface circuit providing a high speed bus. According to one embodiment, the interface circuitry includes a plurality of I/O pins coupled to a plurality of bus drivers, wherein each bus driver is configured to adjust the rise time, fall time, and drive strength of outputs signal on the I/O pins based on process-voltage-temperature ("PVT") conditions. The circuitry used to adjust the I/O outputs includes a slew rate control circuit, a current control circuit, and a delay lock loop ("DLL").