Gautama B Venegas

US Patent:

20030125757, Jul 3, 2003

Filed:

Nov 4, 2002

Appl. No.:

10/288559

Inventors:

Himanshu Patel - San Jose CA, US
John Simpson - Woodside CA, US
Darren Doud - San Jose CA, US
Gautama Venegas - Pleasanton CA, US
Eric Willis - Santa Cruz CA, US
Brett Follmer - Santa Clara CA, US
Tim Corvi - San Mateo CA, US

Assignee:

FOX HOLLOW TECHNOLOGIES, INC. - REDWOOD CITY CA

International Classification:

A61B017/22

US Classification:

606/159000

Abstract:

A debulking catheter comprising a tissue debulking assembly for removing material from a body lumen. Catheters of the present invention generally include a catheter body having proximal and distal portions and a tissue debulking assembly disposed at least partially within the distal portion. The tissue debulking assembly is radially movable to expose at least a portion of the assembly through a window on the catheter body to contact material in the body lumen. The catheter may then be moved to allow the tissue debulking assembly to remove all or a portion of the material. In exemplary embodiments, the distal portion of the catheter body is rotatably coupled to the proximal portion such that rotation or deflection of the distal portion, relative to the proximal portion, urges the window against material in the body lumen, exposes the tissue debulking assembly through the window, or both. In some embodiments, the flexible proximal portion includes a rigid distal portion to enhance positioning of the debulking assembly within the body lumen.

US Patent:

20040167553, Aug 26, 2004

Filed:

Apr 22, 2003

Appl. No.:

10/421979

Inventors:

John Simpson - Woodside CA, US
Michael Rosenthal - Palo Alto CA, US
Himanshu Patel - San Jose CA, US
Gautama Venegas - Pleasanton CA, US

Assignee:

Fox Hollow Technologies, Inc. - Redwood City CA

International Classification:

A61B017/22

US Classification:

606/159000

Abstract:

A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both. In some embodiments, the cutting element is movable between retracted and deployed positions for advancing the device to a site for treatment and for removing material, respectively.

US Patent:

20040167554, Aug 26, 2004

Filed:

Apr 22, 2003

Appl. No.:

10/421980

Inventors:

John Simpson - Woodside CA, US
Michael Rosenthal - Palo Alto CA, US
Gautama Venegas - Pleasanton CA, US
Darren Doud - San Jose CA, US
John Ashley - San Francisco CA, US

Assignee:

Fox Hollow Technologies, Inc. - Redwood City CA

International Classification:

A61B017/22

US Classification:

606/159000

Abstract:

A device for reentering a true lumen from a subintimal location includes a rotating cutting element and energy emitting element. Energy is emitted to determine the location of the true lumen and the cutting element is exposed to cut an access path to the true lumen. The cutting element may be gradually exposed and the distal portion may be bent or articulated to move the cutting element toward the material to be cut.

US Patent:

20090299394, Dec 3, 2009

Filed:

Apr 28, 2009

Appl. No.:

12/431210

Inventors:

John B. Simpson - Woodside CA, US
Michael H. Rosenthal - Palo Alto CA, US
Himanshu Patel - San Jose CA, US
Gautama B. Venegas - Pleasanton CA, US

Assignee:

FOX HOLLOW TECHNOLOGIES, INC. - Plymouth MN

International Classification:

A61B 17/22
A61B 17/3207

US Classification:

606159, 606170

Abstract:

A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both.

US Patent:

20170007291, Jan 12, 2017

Filed:

Sep 20, 2016

Appl. No.:

15/270147

Inventors:

- Mansfield MA, US
Michael H. Rosenthal - San Carlos CA, US
Himanshu Patel - San Jose CA, US
Gautama B. Venegas - Pleasanton CA, US

International Classification:

A61B 17/3207
A61B 5/02
A61B 1/313
A61B 5/00
A61B 1/00
A61B 1/05

Abstract:

A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both.

US Patent:

20150238224, Aug 27, 2015

Filed:

Mar 13, 2015

Appl. No.:

14/656881

Inventors:

- Mansfield MA, US
Michael H. Rosenthal - San Carlos CA, US
Himanshu Patel - San Jose CA, US
Gautama B. Venegas - Pleasanton CA, US

International Classification:

A61B 17/3207
A61B 5/02
A61B 1/313
A61B 5/00
A61B 1/00
A61B 1/05

Abstract:

A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both.

US Patent:

20140163591, Jun 12, 2014

Filed:

Jul 12, 2013

Appl. No.:

13/940430

Inventors:

- Mansfield MA, US
Michael H. Rosenthal - San Carlos CA, US
Himanshu Patel - San Jose CA, US
Gautama B. Venegas - Pleasanton CA, US

International Classification:

A61B 17/3207

US Classification:

606159

Abstract:

A method of removing material from a blood flow lumen generally includes providing a device having a cutting element and an opening, advancing the device through the blood flow lumen to a site where material is to be removed, forcing the opening toward a wall of the site where material is to be removed, and moving the cutting element and the opening so that material in the blood flow lumen is cut by the cutting element and directed into the opening for removal as the cutting element and opening are moved through the blood flow lumen. In some embodiments, the device may be deflected or bent to force the opening toward a wall to remove material. The cutting element may be rotatable and may have an axis that is movable, that is not parallel to the longitudinal axis of the device, or both.