Tim N Huynh, 5026598 Flamingo Ave, Hayward, CA 94544

6454641, Sep 24, 2002

Nov 7, 2000

09/708219

David E. Weldon - Santa Clara CA, 95051
Tim H. Huynh - San Jose CA, 95132

B24B 2100

451364, 451303, 451296, 384 12, 384100

A polishing system such as a chemical mechanical belt polisher includes a hydrostatic fluid bearing that supports polishing pads and incorporates one or more of the following novel aspects. One aspect uses compliant surfaces surrounding fluid inlets in an array of inlets to extend areas of elevated support pressure around the inlets. Another aspect modulates or reverses fluid flow in the bearing to reduce deviations in the time averaged support pressure and to induce vibrations in the polishing pads to improve polishing performance. Another aspect provides a hydrostatic bearing with a cavity having a lateral extent greater than that of an object being polished. The depth and bottom contour of cavity can be adjusted to provide nearly uniform support pressure across an area that is surrounded by a retaining ring support. Changing fluid pressure to the retaining ring support adjusts the fluid film thickness of the bearing. Yet another aspect of the invention provides a hydrostatic bearing with spiral or partial cardiod drain grooves.

6746446, Jun 8, 2004

Aug 4, 2000

09/633054

Sung Chun - Palo Alto CA
Reynaldo P. Hilario - Mountain View CA
Tim Ngeo Huynh - Santa Clara CA
Mahmoud R. Seraj - Mountain View CA
Robert Obara - Fremont CA

Cardima, Inc. - Fremont CA

A61B 1818

606 41, 604 9504

An intravascular electrophysiology (EP) device for the mapping and/or formation of lesions along the isthmus region of a heart that has particular utility in the treatment of atrial flutter. The EP device of the invention has an elongated shaft with a proximal section, a compound-curved or modified pigtail-shaped distal section, and a plurality of at least partially exposed electrodes disposed on an outer surface of the distal section. The electrodes are spaced along a length of the distal section and may be interspersed with at least one temperature sensor located between electrodes. The shape of the distal end of the device enables manipulation of the device by inserting its distal end in the tricuspid valve and retracting the device to bias the section having electrodes along the isthmus to achieve acceptable contact with the region so high frequency (e. g. , RF) electrical energy delivered to the electrodes on the distal section of the EP device will form a lesion. Sections of the isthmus where treatment is desired but not reached by the section of the device biased against tissue by retraction may be ablated by repeating the steps of hooking the tricuspid valve at a different end location of the device and retracting to bias the electrodes against different tissue, simply advancing the section with electrodes to the desired site or retracting the device so a tip connected to an RF source will drop into a desired site where ablation may occur.

6875085, Apr 5, 2005

Sep 23, 2002

10/253738

David E. Weldon - Santa Clara CA, US
Tim H. Huynh - San Jose CA, US

Mosel Vitelic, Inc. - Hsinchu

B24B001/00

451 41, 451 59, 451 63, 451173, 451307

A polishing system such as a chemical mechanical belt polisher includes a hydrostatic fluid bearing that supports polishing pads and incorporates one or more of the following novel aspects. One aspect uses compliant surfaces surrounding fluid inlets in an array of inlets to extend areas of elevated support pressure around the inlets. Another aspect modulates or reverses fluid flow in the bearing to reduce deviations in the time averaged support pressure and to induce vibrations in the polishing pads to improve polishing performance. Another aspect provides a hydrostatic bearing with a cavity having a lateral extent greater than that of an object being polished. The depth and bottom contour of cavity can be adjusted to provide nearly uniform support pressure across an area that is surrounded by a retaining ring support. Changing fluid pressure to the retaining ring support adjusts the fluid film thickness of the bearing. Yet another aspect of the invention provides a hydrostatic bearing with spiral or partial cardiod drain grooves.

6972016, Dec 6, 2005

May 1, 2001

09/847181

Alex L. Lim - Santa Clara CA, US
Tim Huynh - Santa Clara CA, US

CaRDiMa, Inc. - Fremont CA

A61B018/14

606 41, 607 99, 607113, 607122

An electrophysiology (EP) device suitable for ablating tissue within a patient's body lumen. The EP device of the invention generally comprises an elongated shaft having a distal shaft section with a helical shape and at least one electrode on an exterior portion thereof. One aspect of the invention comprises a method of performing a medical procedure, such as treating a patient for atrial arrhythmia, by forming a lesion using an EP device embodying features of the invention.

7766960, Aug 3, 2010

Apr 30, 2004

10/836909

Miles Alexander - Fremont CA, US
Todd Thompson - San Jose CA, US
Tim Huynh - Santa Clara CA, US
Ray Betelia - Santa Jose CA, US

NovoStent Corporation - Mountain View CA

A61F 2/00
A61F 2/06

623 122, 623 115, 623 111

The present invention is directed to a delivery catheter for use in deploying a vascular prosthesis having a self-expanding helical section for use in a wide range of interventional applications. The delivery catheter comprises an elongated member having a helical ledge with a pitch selected to impose a predetermined amount of foreshortening on the vascular prosthesis during deployment. Methods of making and using the delivery catheter of the present invention also are provided.

7901448, Mar 8, 2011

Sep 30, 2005

11/241341

Eric Leopold - Redwood City CA, US
Tim Huynh - Milpitas CA, US

NovoStent Corporation - Mountian View CA

A61F 2/06
A61M 29/00

623 115, 606108

The present invention is directed to an implantable vascular prosthesis configured for use in a wide range of applications, such as treating aneurysms, maintaining patency in a vessel, and providing controlled delivery of therapeutic agents to a vessel wall. The prosthesis comprises a helical body having a plurality of turns, wherein the proximal and distal edges of the turns of the prosthesis has a pattern that interdigitates when the prosthesis assumes the deployed configuration. The prosthesis optionally may comprise a radially expanding distal portion coupled to the helical body for facilitating placement of the prosthesis within a body vessel.

2005001, Jan 20, 2005

Aug 2, 2004

10/909668

Richard Hill - Berkeley CA, US
Alex Lim - Santa Clara CA, US
Tim Huynh - Santa Clara CA, US
Eric Chan - Newark CA, US

A61B018/14

606041000

An electrophysiology (EP) device suitable for ablating tissue within a patient's body lumen. The EP device of the invention generally comprises an elongated shaft having a distal shaft section with a helical shape and at least one electrode on an exterior portion thereof. One aspect of the invention comprises a method of performing a medical procedure, such as treating a patient for atrial arrhythmia, by forming a lesion using an EP device embodying features of the invention.

2005024, Nov 3, 2005

Aug 25, 2004

10/925756

Michael Hogendijk - Santa Clara CA, US
Eric Leopold - Redwood City CA, US
Tim Huynh - Santa Clara CA, US
Miles Alexander - Fremont CA, US

NovoStent Corporation - Santa Clara CA

A61F002/06

623001110

The present invention is directed to a delivery system for delivering a vascular prosthesis within a vessel, the vascular prosthesis having a contracted delivery configuration and a deployed configuration. The delivery system comprises a loader tube having a lumen preloaded with a delivery wire carrying a vascular prosthesis in the contracted delivery configuration. A separately inserted sheath includes a lumen configured to accept the vascular prosthesis, while retaining it in the contracted delivery configuration. The delivery wire is used to translate the vascular prosthesis to a distal end of the sheath for deployment in a vessel.