Quang N Tran

US Patent:

6524299, Feb 25, 2003

Filed:

Apr 9, 1997

Appl. No.:

08/838685

Inventors:

Quang Q. Tran - Fremont CA
Marlowe Patterson - Milpitas CA
Henry Nita - Milpitas CA
Paul C. Slaikeu - Hayward CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61M 2500

US Classification:

604523

Abstract:

This invention is to a minimally invasive surgical device. In particular, the invention relates to an infusion catheter which may be used in cardiovascular and endovascular procedures to deliver diagnostic, therapeutic, or vasoocclusive agents to a target site accessible through the vasculature. The device is a flow-directed infusion catheter having a variety of sections of different flexibilities with tapered junctions between those sections. The inventive catheter is directed to that target site by a flow of blood to the site.

US Patent:

6527763, Mar 4, 2003

Filed:

Sep 6, 2001

Appl. No.:

09/949443

Inventors:

Victor C. Esch - San Francisco CA
Quang Q. Tran - Fremont CA
R. Rox Anderson - Lexington MA

Assignee:

Endovasix, Inc. - Belmont CA

International Classification:

A61B 1818

US Classification:

606 2, 606 8, 606127

Abstract:

The invention encompasses methods and apparatus for pumping fluid from one location to another through the repetitive expansion and collapse of bubbles generated as a result of the absorption of repetitive pulses of radiation in a fluid. This pumping phenomenon can be used to aid removal of a total or partial occlusion in a body passage by emulsifying the occlusion with acoustic shock and pressure waves or by causing mechanically disrupting the occlusive material.

US Patent:

6547779, Apr 15, 2003

Filed:

Jun 9, 1999

Appl. No.:

09/328514

Inventors:

Marc-Alan Levine - San Francisco CA
Eduardo U. Sucgang - South San Francisco CA
Stephen J. Hebert - Berkeley CA
Estela D. Gatchalian - San Jose CA
Quang Q. Tran - Fremont CA
Victor C. Esch - San Francisco CA

Assignee:

Endovasix, Inc. - Belmont CA

International Classification:

A61B 1818

US Classification:

606 7, 606 13, 606 15, 606128, 128898, 607 89

Abstract:

Methods and apparatus for creating fluid flow from one location to another are disclosed. The fluid flow is created via the absorption of repetitive pulses of radiation in a fluid to generate bubbles that expand and collapse repetitively. This fluid mechanism, or pumping phenomenon, can be used to aid removal of a total or partial occlusion in a body passage by disrupting a surface of the occlusion with acoustic shock and pressure waves and/or by causing mechanical disruption of the occlusive material. Appropriate selection of materials and particular constructions improve apparatus flexibility.

US Patent:

8321137, Nov 27, 2012

Filed:

Jun 4, 2004

Appl. No.:

10/861177

Inventors:

Quang Tran - Fremont CA, US
Glenda G. Anderson - San Jose CA, US
Alejandrina Pattin - Orlando FL, US
Cheryl Kay Hornbaker - Denver CO, US

Assignee:

Pathwork Diagnostics, Inc. - Sunnyvale CA

International Classification:

G01N 33/50
G01N 33/48

US Classification:

702 19, 702 20

Abstract:

Methods, computer systems, and computer readable medium for testing a plurality of models in order to classify a biological specimen. A determination is made as to whether a model precondition associated with a model in the plurality of models has been satisfied. The model is skipped when the model precondition has not been satisfied. When the model precondition has been satisfied, the first model is tested by selecting a calculation from the first model. The selected calculation is computed using cellular constituent abundance values from the biological specimen in accordance with a calculation algorithm set forth in the selected model. This selecting and computing is repeated for one or more calculations in the selected model. Then, each of these calculations is aggregated in accordance with an aggregation algorithm associated with the selected model. These steps are repeated for at least one other model in the plurality of models.

US Patent:

20030065316, Apr 3, 2003

Filed:

Sep 12, 2002

Appl. No.:

10/242484

Inventors:

Marc-Alan Levine - San Francisco CA, US
Eduardo Sucgang - South San Francisco CA, US
Stephen Hebert - Berkeley CA, US
Estela Gatchalian - San Jose CA, US
Quang Tran - Redwood City CA, US
Victor Esch - San Francisco CA, US

International Classification:

A61B018/04

US Classification:

606/033000

Abstract:

The invention encompasses methods and flexible apparatus for creating fluid flow from one location to another through the repetitive expansion and collapse of bubbles generated as a result of the absorption of repetitive pulses of radiation in a fluid. This pumping phenomenon can be used to aid removal of a total or partial occlusion in a body passage by disrupting the surface of the occlusion with acoustic shock and pressure waves and/or by causing mechanical disruption of the occlusive material. Flexibility is improved with choice of materials and particular constructions.

US Patent:

20080142672, Jun 19, 2008

Filed:

Nov 9, 2007

Appl. No.:

11/937831

Inventors:

Quang Tran - San Gabriel CA, US

International Classification:

B68G 5/02

US Classification:

248560, 248118

Abstract:

The present invention provides a portable computer peripheral having an attachable palm rest to be integrated therein which allows the user to maintain a wrist-neutral position when using the portable computer. The portable computer palm rest comprises a computer friendly adhesive and color selective top layer for custom applications and a value-added method and apparatus that provides a safeguard by delivering an extra layer of comfort and protection between a User and his/her Laptop/Notebook/MacBook Computer.

US Patent:

20110184452, Jul 28, 2011

Filed:

Jan 28, 2011

Appl. No.:

13/016855

Inventors:

Andy Huynh - Westminster CA, US
Masoud Molaei - Mountain View CA, US
Victoria Schuman - Long Beach CA, US
Sanjay Shrivastava - Irvine CA, US
Earl Slee - Laguna Niguel CA, US
Quang Tran - Redwood City CA, US

Assignee:

Micro Therapeutics, Inc. - Irvine CA

International Classification:

A61M 29/00

US Classification:

606195

Abstract:

An intraluminal apparatus including a catheter and device is positionable at a junction of afferent and efferent vessels of a bifurcation having an aneurysm. After positioning the device to substantially conform the device to the shape of the junction, the device acts as a scaffolding to inhibit herniation of objects out of the aneurysm and the device permits perfusion to the efferent vessels. Positioning the device may include deployment and optional release from a catheter. Embolic material may be inserted in the aneurysm before or after positioning the device. The device may have a proximal end, a distal end, and a plurality of filaments extending between and coupled at the proximal end and the distal end. The device may include a central filament configured to reshape the device. The distal end of the device may include a covering. The device may be football shaped, pumpkin shaped, or acorn shaped.

US Patent:

20110238041, Sep 29, 2011

Filed:

Mar 24, 2010

Appl. No.:

12/731110

Inventors:

Elaine Zhao Lim - Fremont CA, US
Quang Quoc Tran - Redwood City CA, US
Ting Tina Ye - San Jose CA, US

Assignee:

CHESTNUT MEDICAL TECHNOLOGIES, INC. - Menlo Park CA

International Classification:

A61M 25/00

US Classification:

604527, 604525

Abstract:

A multi-layered catheter is provided, having a proximal end, a distal end, and a lumen extending therethrough. The catheter can have various sections of different flexibility extending distally along the length of the catheter. The catheter can have four layers along a proximal portion, and three layers along a distal portion. In some embodiments, the layers can comprise at least a stainless steel coil and a stainless steel braid. The catheter can exhibit both flexibility as well as kink resistance.