Richard L Bautista

US Patent:

20040059228, Mar 25, 2004

Filed:

Sep 23, 2002

Appl. No.:

10/253392

Inventors:

Lawrence Wasicek - San Jose CA, US
Richard Bautista - Palo Alto CA, US
Craig Adams - Dublin CA, US

Assignee:

Scimed Life Systems, Inc.

International Classification:

A61B008/14

US Classification:

600/466000

Abstract:

Various improvements are made to catheters adapted to be flushed to remove air from within the catheter. For example, improved catheters include a catheter with a self-sealing seal at its distal end to pass a venting tube for removing air from within the catheter, a catheter having a distal end whose diameter is reduced to compress a seal adapted to pass a venting tube; a catheter having a cap at its distal end where the cap has a venting hole that is opened or closed depending on the conditions subjected to the shape-memory material of the cap; a catheter having a vent hole at its distal end; a catheter having an opening at its distal end that can be closed by a plug; and a catheter having a narrow neck with an opening to vent air and the neck is coupled to a tab where twisting the tab closes the opening in the neck.

US Patent:

20130137980, May 30, 2013

Filed:

Nov 28, 2012

Appl. No.:

13/687801

Inventors:

Thomas C. Moore - Livermore CA, US
Robert Zelenka - Milpitas CA, US
Richard Bautista - Palo Alto CA, US

Assignee:

ACIST MEDICAL SYSTEMS INC. - Eden Prairie MN

International Classification:

A61B 8/12
A61B 18/18

US Classification:

600439

Abstract:

An ultrasound catheter includes an elongated body, a first and second ablation element each configured to ablate soft tissue and an imaging core having an ultrasound transducer. In another example, an ultrasound catheter includes an elongated body, a RF ablator configured to ablate soft tissue at a frequency less than 1 MHz, and an ultrasound transducer configured to image at a frequency greater than or equal to 10 MHz. In another example, an ultrasound catheter apparatus includes an ultrasound catheter having an ablator and an ultrasound transducer, and a graphical user interface displayed using a computer processor. The graphical user interface displays a real-time image of a treatment area and the ultrasound catheter, and a chart displaying ablation as a function of time, the chart being updated in real-time.

US Patent:

6186952, Feb 13, 2001

Filed:

Jan 4, 2000

Appl. No.:

9/477202

Inventors:

David A. White - San Jose CA
Donald S. Mamayek - Mountain View CA
Richard A. Bautista - Palo Alto CA

Assignee:

SciMed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 812

US Classification:

600459

Abstract:

In one embodiment, an ultrasound imaging assembly (80) includes a housing (82) having a longitudinal axis (88), a proximal end (86), and a distal ending (84) defining a receptacle (90). The imaging assembly includes a transducer package (60) having a central axis (62) and an imaging surface (66) positioned at a desired angle (106) relative to the central axis. The transducer package is at least partially disposed within the receptacle so that the central axis is generally perpendicular to the longitudinal axis. Such a configuration permits a relatively large percentage of the ultrasound signal to pass through a sheath (120) surrounding the imaging assembly and reduces assembly-to-assembly variations.

US Patent:

48839450, Nov 28, 1989

Filed:

Dec 8, 1988

Appl. No.:

7/281580

Inventors:

Richard L. Bautista - Union City CA

Assignee:

Raychem Corporation - Menlo Park CA

International Classification:

H01R 903

US Classification:

219541

Abstract:

A connector which is suitable for connecting an elongate heater to an elongate compartment and which provides strain relief by gripping the heater in a manner which forces it into a serpentine configuration. The connector is particularly useful for heaters which comprise an outer insulating jacket surrounded by a metallic grounding braid. The elongate component may comprise a power lead or one or more elongate heaters.

US Patent:

60366486, Mar 14, 2000

Filed:

Oct 23, 1998

Appl. No.:

9/178010

Inventors:

David A. White - San Jose CA
Donald S. Mamayek - Mountain View CA
Richard A. Bautista - Palo Alto CA

Assignee:

SCIMED Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 812

US Classification:

600459

Abstract:

In one embodiment, an ultrasound imaging assembly (80) includes a housing (82) having a longitudinal axis (88), a proximal end (86), and a distal ending (84) defining a receptacle (90). The imaging assembly includes a transducer package (60) having a central axis (62) and an imaging surface (66) positioned at a desired angle (106) relative to the central axis. The transducer package is at least partially disposed within the receptacle so that the central axis is generally perpendicular to the longitudinal axis. Such a configuration permits a relatively large percentage of the ultrasound signal to pass through a sheath (120) surrounding the imaging assembly and reduces assembly-to-assembly variations.

US Patent:

62872613, Sep 11, 2001

Filed:

Jul 21, 1999

Appl. No.:

9/362630

Inventors:

Veijo T. Suorsa - Sunnyvale CA
Dennis Mendoza - Tracy CA
Richard Bautista - Palo Alto CA

Assignee:

Scimed Life Systems, Inc. - Maple Grove MN

International Classification:

A61B 814

US Classification:

600459

Abstract:

The present invention provides ultrasound transducers, and imaging assemblies and catheters employing such transducers, that provide improved imaging capabilities. In one embodiment, an ultrasound imaging assembly (50) includes a housing having a distal end (56), a proximal end (57) and a longitudinal axis. A transducer element (54) is included having an outer face. The outer face has a first radius of curvature along a first axis and a second radius of curvature along a second axis. The transducer element is operably attached to the distal end to position the first axis to be generally parallel to the longitudinal axis to provide improved cross-plane resolution.