Dennis Minh Bui

US Patent:

6413269, Jul 2, 2002

Filed:

Jul 6, 2000

Appl. No.:

09/612405

Inventors:

Dennis Bui - Irvine CA
Jay J. Eum - Irvine CA
Paul W. Mikus - Irvine CA

Assignee:

Endocare, Inc. - Irvine

International Classification:

A61F 206

US Classification:

623 111, 623 112

Abstract:

A stent delivery catheter. The catheter includes an inner catheter tube and an outer catheter tube which are rotatable relative to each other. The inner catheter and outer catheter include recesses to receive the ends of the stent, permitting pull wires to engage the stent ends without need to for the pull wires to extend radially beyond the bounds of the catheter or requiring the stent ends to protrude it into the lumen of the inner or outer catheter.

US Patent:

6428520, Aug 6, 2002

Filed:

Oct 4, 1999

Appl. No.:

09/411988

Inventors:

George A. Lopez - Laguna Beach CA
David C. Arnold - Mission Viejo CA
Bruce M. Hubrecht - Canyon Lake CA
Alison D. Brummett - Corona Del Mar CA
Thomas J. Gustus - Costa Mesa CA
Dennis M. Bui - Alta Loma CA

Assignee:

ICU Medical, Inc. - San Clemente CA

International Classification:

A61M 500

US Classification:

604249, 604256, 604246, 2511493, 2511497, 251 4

Abstract:

A closed system, spikeless, positive-flow valve device includes a body defining an internal cavity. At the proximal end of the body is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The valve includes a plastic, resilient silicon seal which fills the upper cavity and opening with an oval seal cap having a slit. The opening presses the oval seal cap to keep the slit closed in the decompressed state. The slit opens as the nose of the medical implement compresses the seal into the cavity and the seal cap is free from the opening. The housing also includes a fluid space which facilitates fluid flow between the medical implement and a catheter tip. The fluid space within the valve automatically and reversibly increases upon insertion of the medical implement into the cavity and decreases upon withdrawal of the medical implement, such that a positive flow from the valve toward the catheter tip is effected upon withdrawal of the medical implement, thereby preventing a flow of blood from a patient into the catheter when the medical implement is removed from the valve.

US Patent:

6517569, Feb 11, 2003

Filed:

Mar 20, 2001

Appl. No.:

09/813118

Inventors:

Paul W. Mikus - Aliso Viejo CA
Jay J. Eum - Aliso Viejo CA
Dennis Bui - Orange CA
Gregory Kelly - Mission Viejo CA

Assignee:

Endocare, Inc. - Irvine CA

International Classification:

A61F 206

US Classification:

623 111

Abstract:

Two embodiments for a stent delivery catheter are disclosed. In the first embodiment, the stent delivery catheter comprises an outer sheath, a peel-away sheath, and an inner sheath. In the second embodiment, the stent delivery catheter comprises an outer sheath and an inner tubular member which distally ends in a tongue having an arcuate cross section.

US Patent:

6629981, Oct 7, 2003

Filed:

Mar 23, 2001

Appl. No.:

09/816508

Inventors:

Dennis M. Bui - Orange CA
Sanford D. Damasco - Irvine CA

Assignee:

Endocare, Inc. - Irvine CA

International Classification:

A61M 2900

US Classification:

606108, 606191

Abstract:

A stent delivery catheter is disclosed. The catheter includes an inner catheter tube and an outer catheter tube which are rotatable relative to each other. The inner catheter and outer catheter include releasable attachment structures to releasably engage the ends of the stent. A proximal hand piece includes controls for enlarging and deploying the stent in a body lumen.

US Patent:

6767346, Jul 27, 2004

Filed:

Jan 23, 2002

Appl. No.:

10/057033

Inventors:

Sanford D. Damasco - Irvine CA
Dennis M. Bui - Orange CA
Xiaoyu Yu - San Diego CA

Assignee:

Endocare, Inc. - Irvine CA

International Classification:

A61B 1736

US Classification:

606 21, 606 20, 606 22, 607105, 607113

Abstract:

The malleable cryosurgical probe includes a cryostat assembly and a cryoprobe assembly. The cryostat assembly includes an elongated shaft assembly having a bellows portion thereof and a closed distal end. The shaft assembly includes at least one freezing portion comprising the bellows portion, at least one thermally insulated portion and a thermally insulating element positioned about the thermally insulated portion. A cryostat is operably associated with the elongated shaft assembly. It includes a cryostat inlet for receiving gas entering the cryostat, a cryostat outlet and a heat exchanger positioned between the cryostat outlet and the cryostat inlet. The heat exchanger receives gas from the cryostat inlet and provides heat transfer between gas flowing within the cryostat and fluid exterior thereto. At least one Joule-Thomson nozzle is in fluid communication with the cryostat outlet. The at least one Joule-Thomson nozzle expands gas expelled therefrom.

US Patent:

6932795, Aug 23, 2005

Filed:

Jun 5, 2002

Appl. No.:

10/163719

Inventors:

George A. Lopez - Laguna Beach CA, US
David C. Arnold - Mission Viejo CA, US
Bruce M. Hubrecht - Canyon Lake CA, US
Alison D. Brummett - Corona Del Mar CA, US
Thomas J. Gustus - Costa Mesa CA, US
Dennis M. Bui - Alta Loma CA, US

Assignee:

ICU Medical, Inc. - San Clemente CA

International Classification:

A61M005/00

US Classification:

604249, 604256, 604246, 251142

Abstract:

A closed system, spikeless, positive-flow valve device includes a body defining an internal cavity. At the proximal end of the body is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The valve includes a plastic, resilient silicon seal which fills the upper cavity and opening with an oval seal cap having a slit. The opening presses the oval seal cap to keep the slit closed in the decompressed state. The slit opens as the nose of the medical implement compresses the seal into the cavity and the seal cap is free from the opening. The housing also includes a fluid space which facilitates fluid flow between the medical implement and a catheter tip. The fluid space within the valve automatically and reversibly increases upon insertion of the medical implement into the cavity and decreases upon withdrawal of the medical implement, such that a positive flow from the valve toward the catheter tip is effected upon withdrawal of the medical implement, thereby preventing a flow of blood from a patient into the catheter when the medical implement is removed from the valve.

US Patent:

20010049508, Dec 6, 2001

Filed:

Jun 12, 2001

Appl. No.:

09/879364

Inventors:

Thomas Fangrow - Mission Viejo CA, US
Jonathan Schmidt - Newport Beach CA, US
Daniel Wait - Santa Ana CA, US
Dennis Bui - Orange CA, US

International Classification:

A61M005/00
A61M005/14

US Classification:

604/256000, 604/284000, 604/167010

Abstract:

A medical valve device for use in selectively establishing a fluid flow between first and second medical implements is disclosed. The valve has a body defining a passage from a first port to a second port. The valve defines a first fluid volume when both medical implements are connected thereto, and a second, smaller volume when one of the implements is disconnected, thereby causing a positive flow of fluid from the valve to the second medical implement when the first implement is disconnected.

US Patent:

20050055017, Mar 10, 2005

Filed:

Jul 21, 2004

Appl. No.:

10/896749

Inventors:

Sanford Damasco - Irvine CA, US
Dennis Bui - Orange CA, US
Xiaoyu Yu - San Diego CA, US

International Classification:

A61B018/18
F25B019/02

US Classification:

606021000

Abstract:

The malleable cryosurgical probe includes a cryostat assembly and a cryoprobe assembly. The cryostat assembly includes an elongated shaft assembly having a bellows portion thereof and a closed distal end. The shaft assembly includes at least one freezing portion comprising the bellows portion, at least one thermally insulated portion and a thermally insulating element positioned about the thermally insulated portion. A cryostat is operably associated with the elongated shaft assembly. It includes a cryostat inlet for receiving gas entering the cryostat, a cryostat outlet and a heat exchanger positioned between the cryostat outlet and the cryostat inlet. The heat exchanger receives gas from the cryostat inlet and provides heat transfer between gas flowing within the cryostat and fluid exterior thereto. At least one Joule-Thomson nozzle is in fluid communication with the cryostat outlet. The at least one Joule-Thomson nozzle expands gas expelled therefrom. The expanded cold fluid communicates with the freezing portion to provide cooling thereof. The cryoprobe assembly includes a handle assembly for supporting the cryostat assembly and a fluid supply line assembly connectable to a fluid source at one end and to the cryostat inlet at a second end. The heat exchanger is positioned at a location longitudinally spaced from the freezing portion(s).