Phong H Pham

US Patent:

53563883, Oct 18, 1994

Filed:

Sep 22, 1992

Appl. No.:

7/948720

Inventors:

Ivan Sepetka - Redwood City CA
Phong Pham - San Jose CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61M 5178
A61M 500

US Classification:

604164

Abstract:

A catheter for use in combination with a guide wire for placement within a tortuous, small vessel and delivery of fluid at a target site is disclosed. The catheter comprises an elongate tubular body with a perforated flexible tip located at the distal end of the elongate tubular body.

US Patent:

55514430, Sep 3, 1996

Filed:

Jan 21, 1995

Appl. No.:

8/379575

Inventors:

Ivan Sepetka - Redwood City CA
Phong Pham - San Jose CA
Dai T. That - San Jose CA
Julian Nikolchev - Portola Valley CA

Assignee:

Conceptus, Inc. - San Carlos CA

International Classification:

A61B 500

US Classification:

128772

Abstract:

The present invention sets forth a guidewire-type device which can be axially moved via application of axial force and/or by application of torquing force. The device is used for accessing regions within a body. The device is used to attach to subject material within a body, and, if desired, to remove the subject material. In particular, the device and method of the invention are advantageously utilized by health care practitioners for use in accessing tortuous and difficult body areas, such as fallopian tubes.

US Patent:

54296056, Jul 4, 1995

Filed:

Jan 26, 1994

Appl. No.:

8/188382

Inventors:

Richling: Bernd - Vienna, AT
Ivan Sepetka - Redwood City CA
Uriel H. Chee - San Carlos CA
Liem Ho - Mountain View CA
Phong Pham - Fremont CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61M 2900

US Classification:

604 96

Abstract:

This invention is a microballoon tipped catheter. The catheter has a shaft which is of varying flexibility with the most flexible portion towards the distal tip. The balloon, located near the distal tip of the catheter, is typically of an elastic material, is quite flexible in its own right when deflated, and is quite small. The catheter shaft has a main lumen extending from the proximal end to the distal end so to allow the use of a guidewire in placing the catheter's distal tip in remote regions of the vasculature and for delivery of drugs, diagnostics, and other biologics to those regions. The catheter shaft has a wall that desirably is of a multilayer construction. The wall preferably includes an independent lumen, which may be formed from a small diameter tubing that is placed between layers of the wall, for the inflation and deflation of the microballoon. The inflation lumen proceeds from the proximal end of the catheter and terminates near the distal end of the catheter but within the microballoon. This catheter is especially useful in treating disease within the high pressure vessels of the brain with drugs or other therapeutic agents and permits temporary blockage of blood flow and thereby allow better absorption of those active agents.

US Patent:

58911308, Apr 6, 1999

Filed:

Mar 18, 1994

Appl. No.:

8/214858

Inventors:

Thomas J. Palermo - Palo Alto CA
Phong Pham - San Jose CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61B 1700
A61B 1708

US Classification:

606 1

Abstract:

An embolic coil having an enlarged member, such as a ball, attached thereto. The coil is released from a delivery catheter by forcing the enlarged member through an aperture in a socket situated on the distal end of a pusher assembly housed within the delivery catheter.

US Patent:

53083423, May 3, 1994

Filed:

Aug 7, 1991

Appl. No.:

7/741775

Inventors:

Ivan Sepetka - Redwood City CA
Phong Pham - San Jose CA
Erik T. Engelson - Portola Valley CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61M 2500

US Classification:

604282

Abstract:

A catheter composed of an outer coaxial tube or relatively high flexibility and three tandemly disposed inner coaxial tube segments that vary in stiffness with the stiffest being located at the proximal end of the catheter and the least stiff ending proximal of the proximal end of the catheter. The catheter thus has four regions of different stiffness/flexibility.

US Patent:

54238293, Jun 13, 1995

Filed:

Nov 3, 1993

Appl. No.:

8/147529

Inventors:

Phong Pham - Fremont CA
Hong Doan - Santa Clara CA
Ivan Sepetka - Redwood City CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61B 1700

US Classification:

606108

Abstract:

This invention is an apparatus for endovascular occlusion through the formation of thrombi in arteries, veins, aneurysms, vascular malformations, and arteriovenous fistulas. In particular, it deals with a sacrificial link between an endovascular device which is introduced to and is intended to remain at the desired thrombus formation site and the device used to introduce the device. The invention further includes a method for introduction of the device and its electrolytic separation.

US Patent:

53503970, Sep 27, 1994

Filed:

Nov 13, 1992

Appl. No.:

7/975376

Inventors:

Thomas J. Palermo - Palo Alto CA
Phong Pham - San Jose CA

Assignee:

Target Therapeutics, Inc. - Fremont CA

International Classification:

A61M 2900

US Classification:

606200

Abstract:

This invention is a surgical instrument and specifically is a device for delivering an embolic coil to a selected site within a vessel in a human body via use of a catheter. In particular, the device involves an embolic coil having an enlarged member, such as a ball attached thereto which coil is released by forcing the enlarged member through an aperture in a socket situated on the distal end of a pusher assembly.

US Patent:

61618772, Dec 19, 2000

Filed:

May 25, 1999

Appl. No.:

9/318680

Inventors:

Paul Le - San Jose CA
Phong Pham - San Jose CA
Larry Meehan - Morgan Hill CA
Long Nguyen - Fremont CA

Assignee:

Applied Materials, Inc. - Santa Clara CA

International Classification:

F16L 3500

US Classification:

285 93

Abstract:

A conduit interlock assembly for being clamped to portions of a pair of conduits which portions are adjacent an end-to-end interconnection between the two conduits and which conduit interlock assembly is for surrounding a conduit fastener or fasteners fastening the conduits together in the end-to-end connection. The conduit interlock assembly includes a normally open switch for being closed upon the conduit interlock assembly being clamped to the conduits to provide an indication that the conduits are in the end-to-end interconnection and which switch is opened upon the conduit interlock assembly being unclamped from the conduits to provide an indication that the conduits possibly are not in the end-to-end interconnection.