Patents by Inventor Tom Allen Ditter

Tom Allen Ditter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200155074
    Abstract: A catheter having a distal assembly with multiple spines with proximal ends affixed to the catheter and free distal ends. The spines have different lengths so distal ends of the spines trace different circumferences along an inner tissue surface of a tubular region to minimize risk of vein stenosis. The spine lengths can be configured so that the distal ends trace a helical pattern. The distal assembly may have a plunger which deflects the spines when moved longitudinally relative to the distal assembly. The catheter may include a second distal assembly distal of a first distal assembly wherein the first and second distal assemblies are separated by a fixed distanced or an adjustable distance.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: Nhut DIEP, Tom Allen DITTER, Raymond ESTRADA, Kristine FUIMAONO, Debby GRUNEWALD, Ryan HOITINK, Eduardo JIMENEZ, Armida MANRIQUEZ
  • Patent number: 10537286
    Abstract: A catheter having a distal assembly with multiple spines with proximal ends affixed to the catheter and free distal ends. The spines have different lengths so distal ends of the spines trace different circumferences along an inner tissue surface of a tubular region to minimize risk of vein stenosis. The spine lengths can be configured so that the distal ends trace a helical pattern. The distal assembly may have a plunger which deflects the spines when moved longitudinally relative to the distal assembly. The catheter may include a second distal assembly distal of a first distal assembly wherein the first and second distal assemblies are separated by a fixed distanced or an adjustable distance.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 21, 2020
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Nhut Diep, Tom Allen Ditter, Raymond Estrada, Kristine Fuimaono, Debby Grunewald, Ryan Hoitink, Eduardo Jimenez, Armida Manriquez
  • Publication number: 20190336210
    Abstract: A catheter probe comprises an insertion tube, and a distal end with a distal electrode, a force sensor to detect force on the distal electrode, and an irrigated electrode mounted on a coupling member of the force sensor, which has a tubular form surrounding a central space occupied by components, including force sensing coils. A fluid diverter that passes fluid to the proximal irrigated electrode is configured as an insert or an integrated projection of the coupling member, which configuration minimizes its space demand within the coupling member. Thus, the diameter of the distal end need not be increased. The fluid diverter has a proximal entry opening and a distal exit opening connected by a fluid passage with at least a radial branch and at least an axial branch. The irrigated electrode is mounted over the distal exit opening to receive fluid from the fluid passage.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Christopher Thomas Beeckler, Assaf Govari, Rowan Olund Hettel, Tom Allen Ditter
  • Patent number: 10363090
    Abstract: A catheter probe comprises an insertion tube, and a distal end with a distal electrode, a force sensor to detect force on the distal electrode, and an irrigated electrode mounted on a coupling member of the force sensor, which has a tubular form surrounding a central space occupied by components, including force sensing coils. A fluid diverter that passes fluid to the proximal irrigated electrode is configured as an insert or an integrated projection of the coupling member, which configuration minimizes its space demand within the coupling member. Thus, the diameter of the distal end need not be increased. The fluid diverter has a proximal entry opening and a distal exit opening connected by a fluid passage with at least a radial branch and at least an axial branch. The irrigated electrode is mounted over the distal exit opening to receive fluid from the fluid passage.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: July 30, 2019
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Christopher Thomas Beeckler, Assaf Govari, Rowan Olund Hettel, Tom Allen Ditter
  • Publication number: 20190133679
    Abstract: A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. The softer distal loop with a straight distal end atraumatically guides the distal assembly into a tubular region so that the larger proximal loop can sit on the ostium of the tubular region with improved electrode and tissue contact.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 9, 2019
    Inventor: Tom Allen Ditter
  • Patent number: 10130422
    Abstract: A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. The softer distal loop with a straight distal end atraumatically guides the distal assembly into a tubular region so that the larger proximal loop can sit on the ostium of the tubular region with improved electrode and tissue contact.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 20, 2018
    Assignee: Biosense Webster (Israel) Ltd.
    Inventor: Tom Allen Ditter
  • Publication number: 20180036078
    Abstract: A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. The softer distal loop with a straight distal end atraumatically guides the distal assembly into a tubular region so that the larger proximal loop can sit on the ostium of the tubular region with improved electrode and tissue contact.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 8, 2018
    Inventor: Tom Allen Ditter
  • Patent number: 9788893
    Abstract: A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. The softer distal loop with a straight distal end atraumatically guides the distal assembly into a tubular region so that the larger proximal loop can sit on the ostium of the tubular region with improved electrode and tissue contact.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: October 17, 2017
    Assignee: Biosense Webster (Israel) Ltd.
    Inventor: Tom Allen Ditter
  • Patent number: 9717559
    Abstract: A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 1, 2017
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Tom Allen Ditter, Michael Olen Zirkle, Shahram Moadebb, Diana Gallardo
  • Publication number: 20170189103
    Abstract: A catheter probe comprises an insertion tube, and a distal end with a distal electrode, a force sensor to detect force on the distal electrode, and an irrigated electrode mounted on a coupling member of the force sensor, which has a tubular form surrounding a central space occupied by components, including force sensing coils. A fluid diverter that passes fluid to the proximal irrigated electrode is configured as an insert or an integrated projection of the coupling member, which configuration minimizes its space demand within the coupling member. Thus, the diameter of the distal end need not be increased. The fluid diverter has a proximal entry opening and a distal exit opening connected by a fluid passage with at least a radial branch and at least an axial branch. The irrigated electrode is mounted over the distal exit opening to receive fluid from the fluid passage.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 6, 2017
    Applicant: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Christopher Thomas Beeckler, Assaf Govari, Rowan Olund Hettel, Tom Allen Ditter
  • Publication number: 20160338769
    Abstract: A catheter has an electrode assembly adapted for use on an ostium and a stabilizing assembly movable between a stowed position within the catheter and a deployed position in the tubular region of the ostium. The stabilizing assembly has a balloon member that can be extended distally into the tubular region and inflated to wedge itself in the tubular region for anchoring the electrode assembly. The balloon member is mounted on an elongated extender that extends through the catheter and is provided with longitudinal movement to advance and withdraw the balloon between the stowed and deployed positions.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 24, 2016
    Inventors: Patrick O'Fallon, Tom Allen Ditter, Hamid Massoud
  • Publication number: 20160143689
    Abstract: A catheter includes an elongated body having a longitudinal axis, a distal assembly distal the elongated body, the distal assembly having a tapered helical form comprising a larger, electrode-carrying proximal loop and a smaller, softer distal loop, and a shape-memory support member extending through at least the proximal loop. For example, the helical loop subtends at least about 720 radial degrees, with the proximal loop subtending about 360 radial degrees, and the distal loop subtending about 360 radial degrees. The softer distal loop with a straight distal end atraumatically guides the distal assembly into a tubular region so that the larger proximal loop can sit on the ostium of the tubular region with improved electrode and tissue contact.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 26, 2016
    Inventor: Tom Allen Ditter
  • Publication number: 20160128771
    Abstract: A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other.
    Type: Application
    Filed: December 28, 2015
    Publication date: May 12, 2016
    Inventors: Tom Allen Ditter, Michael Olen Zirkle, Shahram Moadebb, Diana Gallardo
  • Patent number: 9220433
    Abstract: A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 29, 2015
    Assignee: Biosense Webster (Israel), LTD.
    Inventors: Tom Allen Ditter, Diana Gallardo, Shahram Moaddeb, Michael Olen Zirkle
  • Publication number: 20140194716
    Abstract: A catheter having a distal assembly with multiple spines with proximal ends affixed to the catheter and free distal ends. The spines have different lengths so distal ends of the spines trace different circumferences along an inner tissue surface of a tubular region to minimize risk of vein stenosis. The spine lengths can be configured so that the distal ends trace a helical pattern. The distal assembly may have a plunger which deflects the spines when moved longitudinally relative to the distal assembly. The catheter may include a second distal assembly distal of a first distal assembly wherein the first and second distal assemblies are separated by a fixed distanced or an adjustable distance.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: Biosense Webster (Israel), Ltd.
    Inventors: Nhut Diep, Tom Allen Ditter, Raymond Estrada, Kristine Fuimaono, Debby Grunewald, Ryan Hoitink, Eduardo Jimenez, Armida Manriquez
  • Publication number: 20130006238
    Abstract: A catheter includes an elongated body, a distal assembly with a shape-memory member defining a generally circular form, and a control handle adapted to actuate a deflection puller wire for deflecting a portion of the elongated body, and a contraction wire for contracting the generally circular form. The generally circular form which carries at least one ring electrode has an off-edge configuration relative to the elongated body such that a longitudinal axis of the elongated body does not intersect the circumference of the circular form and the generally circular form spirals about the longitudinal axis of the elongated body. Moreover, the circular form can have an on-axis configuration such that the longitudinal axis of the elongated body is axially aligned with a central longitudinal axis of the circular form, or an off-axis configuration such that these axes are axially offset from each other.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventors: Tom Allen Ditter, Diana Gallardo, Shahram Moaddeb, Michael Olen Zirkle
  • Publication number: 20070276409
    Abstract: Endoscopic devices methods and devices are provided for attaching opposed walls of tissue. The methods and devices can be used to deliver a plurality of fasteners to opposed tissues, and suture extending through the fasteners can be used to pull the tissues together. The suture can be pre-woven through the fasteners, thus allowing for a quick and simply deployment. While the various methods and devices disclosed herein can be used in a variety of procedures, in certain exemplary embodiments the methods and devices are used to pull together opposed walls of the stomach to form a stomach pouch within the stomach which reduces the rate of gastric emptying.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Applicant: Ethicon Endo-Surgery, Inc.
    Inventors: Mark S. Ortiz, David N. Plescia, Tom Allen Ditter, Soane H. Eke