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Hiroshi Nakagawa

from Cleveland, OH
Age ~68
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Also known as:
Hirosh Nakagawa, Hideko Nakagawa
Related to:
June Nakagawa, 68Jun Nakagawa, 35Hideko Nakagawa, 66
Connected to:
Duane A Nakagawa, 56Haruko Nakagawa, 73Hirotaka Nakagawa, 52Hitoshi Nakagawa, 57Isamu G Nakagawa, 30Jan Nakagawa, 46Jenna T Nakagawa, 37Koji Nakagawa, 84Leeann S Nakagawa, 65Masaaki Nakagawa, 82

Hiroshi Nakagawa Phones & Addresses

  • Cleveland, OH
  • 1220 Allens Trl, Edmond, OK 73012 (405) 341-9013
  • 1216 195Th St, Edmond, OK 73003 (405) 341-9013
  • Oklahoma City, OK

Publications

Us Patents

Catheter With Tip Electrode Having A Recessed Ring Electrode Mounted Thereon

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US Patent:
6405067, Jun 11, 2002
Filed:
Jul 7, 2000
Appl. No.:
09/611849
Inventors:
Robert A. Mest - Long Beach CA
Hiroshi Nakagawa - Edmond OK
Assignee:
Biosense Webster, Inc. - Diamond Bar CA
International Classification:
A61B 504
US Classification:
600374, 606 41, 607101, 607122
Abstract:
A catheter particularly suitable for bipolar mapping and ablating comprises an elongated flexible body having a distal region and at least one lumen extending therethrough. A tip electrode is mounted on the distal region. The tip electrode has an exposed distal region having an outer diameter, a recessed central region having an outer surface proximal to the exposed distal region, and a proximal region having an outer diameter and an outer surface proximal to the central region. The recessed central region has an outer diameter less than the outer diameters of the exposed distal region and the proximal region. The central region and the proximal region are provided with an electrically insulating and thermally conductive layer over at least a portion of their outer surfaces. A ring electrode is mounted on the recessed central region. The ring electrode has an outer diameter less than the outer diameters of the exposed distal region and the proximal region.

Mapping And Ablation Catheter

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US Patent:
6477396, Nov 5, 2002
Filed:
Jul 7, 2000
Appl. No.:
09/611617
Inventors:
Robert A. Mest - Long Beach CA
Hiroshi Nakagawa - Edmond OK
Assignee:
Biosense Webster, Inc. - Diamond Bar CA
International Classification:
A61B 504
US Classification:
600374, 600393, 606 41, 607122
Abstract:
A catheter for mapping and ablating comprises an elongated flexible body having a distal region and at least one lumen extending therethrough. A tip electrode is mounted on the distal region. The tip electrode has an exposed distal region having proximal and distal ends and an isolated region proximal to the exposed distal region. The isolated region has an outer surface provided with an electrically insulating and thermally conductive layer. A second electrode is mounted on the isolated region of the tip electrode. This mapping and ablation electrode arrangement provides discrete recording of electrical signals due to the relatively small exposed distal region while allowing the creating of larger lesions due to the large thermal mass provided by the isolated region.

Catheter And Method, In Particular For Ablation And Like Technique

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US Patent:
7815635, Oct 19, 2010
Filed:
Oct 20, 2004
Appl. No.:
10/595608
Inventors:
Frederik Henricus Wittkampf - Bilthoven, NL
Hiroshi Nakagawa - Edmond OK, US
Assignee:
University Medical Center Utrecht
University of Oklahoma - Norman OK
International Classification:
A61B 18/18
US Classification:
606 41, 606 39, 606 49, 607116
Abstract:
The invention relates to a catheter, provided with an elongated body with an electrically conductive first end, wherein through said body at least one live wire extends which is connected to said first end and a channel for feeding a cooling fluid through said body, which channel is provided, in or near said first end, with at least one outlet opening and wherein, in said first end, a temperature sensor has been arranged, while said channel is thermally insulated from said first end.

Irrigated Catheter And Method, In Particular For Ablation And Like Techniques

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US Patent:
7998141, Aug 16, 2011
Filed:
Oct 8, 2010
Appl. No.:
12/900983
Inventors:
Frederik Henricus Wittkampf - Bilthoven, NL
Hiroshi Nakagawa - Edmond OK, US
Assignee:
University Medical Center Utrecht
University of Oklahoma - Norman OK
International Classification:
A61B 18/18
US Classification:
606 41, 606 39, 606 49, 607116
Abstract:
The invention relates to a variety of catheters provided with an elongate body with an electrically conductive first end. Wherein through said elongate body at least one conductive wire extends which is connected to an electrode. The electrode is coupled to said first end and an irrigation means (e. g. a channel, duct, tube, etc. ) for feeding an irrigation fluid through said elongate body, where said irrigation means is provided, in, on, near, through, or adjacent said first end with at least one outlet opening, while said irrigation means is at least partially thermally insulated from said first end. Optionally a temperature sensor couples to the first end.

Ablation Devices With Sensor Structures

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US Patent:
8216216, Jul 10, 2012
Filed:
Apr 19, 2005
Appl. No.:
11/547410
Inventors:
Reinhard Warnking - E. Setauket NY, US
Eugene Jung - Setauket NY, US
Hiroshi Nakagawa - Edmond OK, US
Robert C. Pacheco - Bayside NY, US
Assignee:
Boston Scientific Scimed, Inc. - Maple Grove MN
International Classification:
A61B 18/04
US Classification:
606 27
Abstract:
A cardiac ablation device, including a steerable catheter () and an expandable ablation element () incorporating one or more balloons () at the distal end of the catheter, has a continuous passageway () extending through it from the proximal end of the catheter to the distal side of the expandable ablation element. A probe () carrying electrodes is introduced through this passageway and deploys, under the influence of its own resilience, to a structure incorporating a loop () which is automatically aligned with the axis of the expandable ablation device, so that minimal manipulation is required to place the sensor probe.

Irrigated Catheter And Method, In Particular For Ablation And Like Techniques

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US Patent:
8287533, Oct 16, 2012
Filed:
Aug 15, 2011
Appl. No.:
13/210090
Inventors:
Frederik Henricus Wittkampf - Bilthoven, NL
Hiroshi Nakagawa - Edmond OK, US
Assignee:
University Medical Center Utrecht
University of Oklahoma - Norman OK
International Classification:
A61B 18/18
US Classification:
606 41, 606 39, 606 49
Abstract:
The invention relates to a catheter, provided with an elongated body with an electrically conductive first end, wherein through said body at least one live wire extends which is connected to said first end and a channel for feeding a cooling fluid through said body, which channel is provided, in or near said first end, with at least one outlet opening and wherein, in said first end, a temperature sensor has been arranged, while said channel is thermally insulated from said first end.

Determining Locations Of Ganglia And Plexi In The Heart Using Complex Fractionated Atrial Electrogram

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US Patent:
8359092, Jan 22, 2013
Filed:
Nov 21, 2008
Appl. No.:
12/275380
Inventors:
Gal Hayam - Tivon, IL
Warren Jackman - Oklahoma City OK, US
Hiroshi Nakagawa - Edmond OK, US
Assignee:
Biosense Webster, Inc. - Diamond Bar CA
International Classification:
A61B 5/04
US Classification:
600523, 600509
Abstract:
Software and apparatus are provided to automatically detect and map ganglionated plexi that are found within areas of complex fractionated electrograms in cardiac chambers. Electrogram signal are analyzed to count the number of complexes whose amplitude and peak-to-peak intervals meet certain criteria. Functional maps indicating a spatial distribution of the ganglionated plexi and the relative numbers of complex fractionated electrograms are produced for display.

Ablation Devices With Sensors Structures

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US Patent:
8398623, Mar 19, 2013
Filed:
Jul 10, 2012
Appl. No.:
13/545814
Inventors:
Reinhard Warnking - Setauket NY, US
Eugene Jung - Setauket NY, US
Hiroshi Nakagawa - Edmond OK, US
Robert C. Pacheco - Bayside NY, US
Assignee:
Boston Scientific Scimed, Inc. - Maple Grove MN
International Classification:
A61B 18/04
US Classification:
606 27
Abstract:
A cardiac ablation device, including a steerable catheter () and an expandable ablation element () incorporating one or more balloons () at the distal end of the catheter, has a continuous passageway () extending through it from the proximal end of the catheter to the distal side of the expandable ablation element. A probe () carrying electrodes is introduced through this passageway and deploys, under the influence of its own resilience, to a structure incorporating a loop () which is automatically aligned with the axis of the expandable ablation device, so that minimal manipulation is required to place the sensor probe.
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Hiroshi Nakagawa from Cleveland, OH, age ~68 Get Report