Dwayne S Yamasaki

US Patent:

20060079951, Apr 13, 2006

Filed:

Oct 8, 2004

Appl. No.:

10/962316

Inventors:

Mark Dolan - Santa Rosa CA, US
Dwayne Yamasaki - Rohnert Park CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/06

US Classification:

623001110

Abstract:

The invention provides a system and method for treating a vascular condition. The system comprises a guide catheter that includes a central lumen. A stent delivery device that includes a delivery catheter and a stent disposed on the delivery catheter is slidably received in the central lumen. A stop interface retains a portion of the delivery catheter within the central lumen while still allowing positioning of the stent beyond a distal end of the guide catheter. In use, the guide catheter with the retained stent delivery device is introduced into a vessel. The stent carried on the stent delivery device is expanded after being positioned at a location beyond a distal end of the guide catheter.

US Patent:

20070283969, Dec 13, 2007

Filed:

Jun 12, 2007

Appl. No.:

11/761906

Inventors:

Dwayne Yamasaki - Rohnert Park CA, US
Mark Dolan - Santa Rosa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/26
A61F 2/92

US Classification:

128898000, 623023700

Abstract:

A method of diagnosing and treating a patient having erectile dysfunction by placement of a stent or paving material within a stenosed region of a pelvic vessel. The diagnosing of the patient's condition includes determining if a treatable stenosis exists within a pelvic vessel and if proper blood flow is otherwise occurring within the penile arteries.

US Patent:

20080147173, Jun 19, 2008

Filed:

Dec 18, 2006

Appl. No.:

11/612123

Inventors:

Greg Mciff - Santa Rosa CA, US
Dwayne S. Yamasaki - Rohnert Park CA, US
David Simon - Boulder CO, US
Kenneth Gardeski - Plymouth MN, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/06

US Classification:

623 134, 606108

Abstract:

One or more localization markers are implanted in a patient's vessel to provide a virtual image of a portion of the vessel, provide a target for deploying a prosthesis, and/or facilitate post operative surveillance of a deployed prosthesis (e.g., to measure prosthesis migration and/or aneurysm elongation). In the case of providing a target or facilitating surveillance, one or more localization markers also can be provided on the prosthesis (e.g., the proximal end portion of the prosthesis) and the position of the prosthesis marker(s) monitored relative to the implanted marker(s). In another embodiment, one or more localization markers are provided adjacent to one opening of a tubular prosthesis to assist with cannulation of the opening. In one example, one or more localization markers are provided on the contralateral stump of a modular bifurcated stent-graft (e.g., to assist a surgeon with inserting a contralateral stent-graft into the contralateral stump of a modular bifurcated stent-graft). One or more localization markers can be provided on a guidewire and tracked to the one or more localization markers on the contralateral stump and the contralateral stent-graft tracked thereover.

US Patent:

20080171934, Jul 17, 2008

Filed:

Jan 12, 2007

Appl. No.:

11/622935

Inventors:

Trevor Greenan - Santa Rosa CA, US
Dwayne S. Yamasaki - Rohnert Park CA, US
Walter Bruszewski - Guerneville CA, US
Ken Gardeski - Plymouth MN, US
David Simon - Boulder CO, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61B 5/05
A61F 11/00

US Classification:

600411, 600424, 606108

Abstract:

One or more markers or sensors are positioned in the vasculature of a patient to facilitate determining the location, configuration, and/or orientation of a vessel or certain aspects thereof (e.g., a branch vessel), determining the location, configuration and/or orientation of a endovascular devices prior to and during prosthesis deployment as well as the relative position of portions of the vasculature and devices, generating an image of a virtual model of a portion of one or more vessels (e.g., branch vessels) or devices, and/or formation of one or more openings in a tubular prosthesis in situ to allow branch vessel perfusion when the prosthesis is placed over one or more branch vessels in a patient (e.g., when an aortic abdominal artery stent-graft is fixed to the aorta superior to the renal artery ostia).

US Patent:

20080172119, Jul 17, 2008

Filed:

Jan 12, 2007

Appl. No.:

11/622943

Inventors:

Dwayne S. Yamasaki - Rohnert Park CA, US
Andrew Bzostek - Louisville CO, US
Greg Mciff - Santa Roasa CA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/06
A61B 5/05

US Classification:

623 111, 600424, 600473, 600439, 606108, 623 134

Abstract:

The position of a prosthesis (e.g., a stent-graft) is monitored using non-ionizing energy during deployment and/or sheath pull-back after the prosthesis has been positioned at a desired location in a vessel.

US Patent:

20080188921, Aug 7, 2008

Filed:

Feb 2, 2007

Appl. No.:

11/670468

Inventors:

Dwayne S. Yamasaki - Rohnert Park CA, US
Kevin Wu - Cambridge MA, US

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/06

US Classification:

623 113, 623 115

Abstract:

A signal lead for an electromagnetic localization marker, which is coupled to a prosthesis, is releasably coupled to the prosthesis. In one embodiment, the lead and electromagnetic localization marker are both releasably attached to the prosthesis through a coupling. In another embodiment, a portion of the lead adjacent to the electromagnetic localization marker is electrolytically dissolved in vivo and the lead removed.

US Patent:

20090259284, Oct 15, 2009

Filed:

Apr 10, 2008

Appl. No.:

12/100574

Inventors:

Dwayne S. Yamasaki - Rohnert Park CA, US
Michael Neidert - Salthill, IE

Assignee:

Medtronic Vascular, Inc. - Santa Rosa CA

International Classification:

A61F 2/82
A61F 2/84
A61N 1/00
A61B 5/06

US Classification:

623 111, 623 113, 607116, 600424

Abstract:

A tubular member adapted for endovascular delivery in a human patient comprises a tubular wire framework and the tubular wire framework forms the core of a signal device. The signal device further includes a coil, which is wrapped around the core to form an inductor, and a capacitor coupled to the inductor to form an inductor capacitor circuit. The signal device can be excited and signals acquired therefrom to determine the position and/or orientation of the signal device and the tubular member. The relative positions and/or orientations of (1) the signal device and/or the tubular member and (2) a device having a signal generating element or a signal generating element being advanced toward the signal device, tubular member or framework can be monitored. Relative positions and/or orientations of a plurality of signal devices in a tubular wire framework also can be determined after the framework is deployed in a vessel and compared to predetermined positions and/or orientations.

US Patent:

20110190596, Aug 4, 2011

Filed:

Oct 1, 2010

Appl. No.:

12/896578

Inventors:

David C. Hacker - Jacksonville FL, US
Maria Charles Vijay Stanislaus - Jacksonville FL, US
Wenjeng Li - Saint Johns FL, US
Dwayne S. Yamasaki - Jacksonville FL, US
William C. Brunnett - Mission Viejo FL, US
Kevin L. McFarlin - Jacksonville FL, US
James Britton Hissong - Jacksonville FL, US
Robert K. Vaccaro - Ponte Vedra Beach FL, US
John M. Murphy - Jacksonville FL, US
Carla A. Pagotto - Ponte Vedra Beach FL, US
Tino Schuler - Jacksonville FL, US

Assignee:

MEDTRONIC XOMED, INC. - Jacksonville MN

International Classification:

A61B 5/0492
A61B 5/01
A61B 5/11

US Classification:

600301, 600373

Abstract:

An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive ink electrodes are formed on the exterior surface of the endotracheal tube. The conductive ink electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least one conductor is coupled to the conductive ink electrodes and is configured to carry the EMG signals received by the conductive ink electrodes to a processing apparatus.