Narendra T Sanghvi

US Patent:

6685640, Feb 3, 2004

Filed:

Sep 28, 2000

Appl. No.:

09/647317

Inventors:

Francis J. Fry - Port Charlotte FL
Michael H. Phillips - Indianapolis IN
Narendra T. Sanghvi - Indianapolis IN

Assignee:

Focus Surgery, Inc. - Indianapolis IN

International Classification:

A61B 814

US Classification:

600439, 600437, 600606, 600 27

Abstract:

An apparatus for ablating tissue within a treatment region includes an ultrasound treatment transducer ( â) for orienting at a first longitudinal orientation and a first angular orientation ( ) within the treatment region ( ), for orienting at the first longitudinal orientation and a second angular orientation ( ) within the treatment region, and for orienting at a second longitudinal orientation and the first angular orientation ( ) within the treatment region, and a drive system for exciting (via conductors ) the transducer ( â) to ablate tissue ( ) oriented adjacent the first longitudinal orientation and the first angular orientation within the treatment region ( ), adjacent the first longitudinal orientation and the second angular orientation within the treatment region ( ), and adjacent the second longitudinal orientation and the first angular orientation within the treatment region ( ), respectively.

US Patent:

7559905, Jul 14, 2009

Filed:

Sep 21, 2006

Appl. No.:

11/524864

Inventors:

Shuhei Kagosaki - Chiba, JP
Yutaka Shimazaki - Tokyo, JP
Kenji Yamashita - Tokyo, JP
Bernard J. Esarey - Defiance OH, US
Artur P. Katny - Ingalls IN, US
Ralf Seip - Indianapolis IN, US
Narendra T. Sanghvi - Indianapolis IN, US

Assignee:

Focus Surgery, Inc. - Indianapolis IN

International Classification:

A61N 7/00

US Classification:

601 3

Abstract:

A HIFU system is disclosed including a fluid circulation system including a degasser.

US Patent:

7662114, Feb 16, 2010

Filed:

Mar 2, 2005

Appl. No.:

11/070371

Inventors:

Ralf Seip - Indianapolis IN, US
Narendra T. Sanghvi - Indianapolis IN, US

Assignee:

Focus Surgery, Inc. - Indianapolis IN

International Classification:

A61N 7/00
A61B 8/00

US Classification:

601 2, 600439

Abstract:

Ultrasound transducers are disclosed which focus acoustic energy at various focal locations while minimizing focal spot degradation and the generation of unwanted on-axis or off-axis energy concentrations through using a generally constant f-number at the various focal locations.

US Patent:

8038631, Oct 18, 2011

Filed:

Mar 3, 2009

Appl. No.:

12/380810

Inventors:

Narendra T. Sanghvi - Indianapolis IN, US
Ralf Seip - Indianapolis IN, US
Paul W. Mikus - Coto de Caza CA, US
Dan Voic - Cedar Grove NJ, US
Russell J. Fedewa - Indianapolis IN, US
Roy F. Carlson - New Palestine IN, US
Artur P. Katny - Ingalls IN, US

International Classification:

A61H 1/00
A61B 8/00
A61B 8/14

US Classification:

601 2, 600439, 600459

Abstract:

A high-intensity focused ultrasound ablation of tissue using minimally invasive medical procedures is provided.

US Patent:

8235902, Aug 7, 2012

Filed:

Sep 11, 2007

Appl. No.:

11/853191

Inventors:

Roy Carlson - New Palestine IN, US
Clint C. Weis - Greenwood IN, US
Ralf Seip - Indianapolis IN, US
Narendra T. Sanghvi - Indianapolis IN, US

Assignee:

Focus Surgery, Inc. - Indianapolis IN

International Classification:

A61B 8/00

US Classification:

600439, 600407, 600437, 600427

Abstract:

A method and apparatus is disclosed for determining the presence of tissue change due to exposure to HIFU Therapy.

US Patent:

20030191396, Oct 9, 2003

Filed:

Mar 10, 2003

Appl. No.:

10/380031

Inventors:

Narendra Sanghvi - Indianapolis IN, US
Arieh Shalhav - Indianapolis IN, US
Mihir Biswas - Indianapolis IN, US

International Classification:

A61B006/00

US Classification:

600/476000

Abstract:

An apparatus and method employ first, second and third trocars () for introduction of equipment into, and removal of equipment from, a body region, an optical imaging system (optical fibers, ), a source () of a relatively inert fluid for expanding the body region to facilitate the introduction of components of the apparatus into the body region to facilitate the introduction of components of apparatus, and an ultrasound apparatus () for at least one of visualization and treatment of the body region. A first one of the trocars () facilitates passing of the component (optical fibers) of the optical imaging system (optical fibers, ) into and out of the body region. A second one of the trocars () facilitates passing the fluid between the fluid source () and the body region. A third one of the trocars () facilitates passing the ultrasound visualization and/or treatment apparatus () into and out of the body region.

US Patent:

20040059266, Mar 25, 2004

Filed:

Sep 22, 2003

Appl. No.:

10/667533

Inventors:

Francis Fry - Port Charlotte FL, US
Michael Phillips - Indianapolis IN, US
Narendra Sanghvi - Indianapolis IN, US

International Classification:

A61H001/00

US Classification:

601/002000

Abstract:

An apparatus for ablating tissue within a treatment region includes an ultrasound treatment transducer (′) for orienting at a first longitudinal orientation and a first angular orientation () within the treatment region (), for orienting at the first longitudinal orientation and a second angular orientation () within the treatment region, and for orienting at a second longitudinal orientation and the first angular orientation () within the treatment region, and a drive system for exciting (via conductors ) the transducer (′) to ablate tissue () oriented adjacent the first longitudinal orientation and the first angular orientation within the treatment region (), adjacent the first longitudinal orientation and the second angular orientation within the treatment region (), and adjacent the second longitudinal orientation and the first angular orientation within the treatment region (), respectively.

US Patent:

20070010805, Jan 11, 2007

Filed:

Jul 8, 2005

Appl. No.:

11/177827

Inventors:

Russell Fedewa - Indianapolis IN, US
Toyoaki Uchida - Sagamihara, JP
Narendra Sanghvi - Indianapolis IN, US
Roy Carlson - New Palestine IN, US

International Classification:

A61B 18/04
A61F 7/00
A61F 7/12

US Classification:

606027000, 607096000

Abstract:

A method and apparatus is disclosed for determining the success of a proposed HIFU Treatment, of an ongoing HIFU Treatment, and/or of a completed HIFU Treatment. An energy density of a given HIFU Treatment may be used as a comparison factor between the given HIFU Treatment and other HIFU Treatments and as a predictor of the success of the given HIFU Treatment. One exemplary energy density is the amount of energy deposited in the treatment region divided by the volume of the treatment region. Another exemplary energy density is the amount of energy deposited in the treatment region divided by the pre-treatment mass of the treatment region. A method and apparatus is disclosed to detect the presence of focal hyperechoic features and non-focal hyperechoic features. A method and apparatus is disclosed to detect the presence of an acoustic obstruction.