Patents Assigned to Biosense Webster, Inc.
  • Patent number: 10653479
    Abstract: A catheter for ablating tissue is provided. The catheter comprises an elongated generally-tubular catheter body having proximal and distal ends. An electrode assembly is provided at the distal end of the catheter body. The electrode assembly including a porous electrode arrangement that is generally transverse to the catheter body. The porous electrode arrangement comprises one or more electrodes electrically connected to a suitable energy source and a porous sleeve mounted in surrounding relation to the one or more electrodes and defining an open space between the porous sleeve and the one more electrodes. One or more irrigation openings fluidly connect the open space to a lumen extending through the catheter through which fluid can pass. In use, fluid passes through the lumen in the catheter, through the one or more irrigation openings, into the open space and through the porous sleeve.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 19, 2020
    Assignee: BIOSENSE WEBSTER, INC.
    Inventors: Martin O'Sullivan, James K. Lee, Irma Hill
  • Patent number: 10569053
    Abstract: An improved bi-directional steerable catheter is provided. The catheter generally comprises a catheter body, tip section and control handle. The catheter further comprises first and second puller wires extending from the control handle, through the catheter body and into the tip section. The control handle has deflection means for each puller wire that include a gear, and a carrier to which the proximal end of a puller wire is anchored. The gear is rotatably coupled to a lever controlled by an operator and the gear engages the carrier such that rotation of the gear by the lever results in longitudinal movement of the carrier, which results in deflection of the tip section.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 25, 2020
    Assignee: BIOSENSE WEBSTER, INC.
    Inventor: Pablo A. Gonzalez
  • Patent number: 10492854
    Abstract: A probe, including an ablation element which is configured to perform ablation of tissue. The probe also includes an ultrasonic transducer, located in proximity to the ablation element, which is configured to transmit acoustic radiation force impulses (ARFIs) to the tissue, and to measure a displacement of the tissue in response to the ARFIs so as to monitor the ablation of the tissue.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: December 3, 2019
    Assignee: BIOSENSE WEBSTER, INC.
    Inventors: Assaf Govari, Andres Claudio, Gilad Adler
  • Patent number: 10405774
    Abstract: A catheter has single axis sensors mounted directly along a portion of the catheter whose position/location is of interest. The magnetic based, single axis sensors are on a linear or nonlinear single axis sensor (SAS) assembly. The catheter includes a catheter body and a distal 2D or 3D configuration provided by a support member on which at least one, if not at least three single axis sensors, are mounted serially along a length of the support member. The magnetic-based sensor assembly may include at least one coil member wrapped on the support member, wherein the coil member is connected via a joint region to a respective cable member adapted to transmit a signal providing location information from the coil member to a mapping and localization system. The joint region provides strain relief adaptations to the at least one coil member and the respective cable member from detaching.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 10, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Maribeth Esguerra Wilczynski, Jennifer Maffre, Thanh Nguyen
  • Patent number: 10350006
    Abstract: A medical device includes an insertion tube, having a distal end for insertion into a body of a subject and an opening at the distal end. A lumen, which includes a flexible tube which passes longitudinally through the insertion tube so as to communicate with the opening at the distal end of the insertion tube, is secured under tension inside the insertion tube.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: July 16, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Assaf Govari, Ariel Garcia
  • Patent number: 10299753
    Abstract: A method for imaging an anatomical structure on a display, including acquiring an initial spatial representation of the anatomical structure and positioning an instrument in proximity to the anatomical structure. The method further includes determining a location of the instrument, and generating, in response to the location, an image of a part of the anatomical structure. The method includes appending the image to the initial spatial representation to display a combined spatial representation.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: May 28, 2019
    Assignee: BIOSENSE WEBSTER, INC.
    Inventors: Assaf Govari, Andres Claudio Altmann, Yitzhack Schwartz
  • Patent number: 10265124
    Abstract: A catheter carries a position sensor in a distal, on-axis position in an irrigated ablation tip electrode. The tip electrode has a shell wall that defines a cavity through which fluid flows and exits via fluid ports formed in the shell wall. The cavity is sealed by an internal member extends into the cavity with a baffle portion and a distal portion. The distal portion safely houses the position sensor and the baffle portion diffuses and disperses fluid entering the tip electrode for a more uniform flow through the cavity. The distal portion is configured to provide an annular region that runs along the length of the tip electrode to better feed fluid to the more distal fluid ports on the tip electrode for more uniform cooling at all locations on the tip electrode.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: April 23, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Michael Olen Zirkle, Jeffrey L. Clark
  • Patent number: 10265123
    Abstract: A catheter enables real-time light measurements, for example, without limitation, diffuse reflectance, fluorescence, etc., from biological materials, such as tissue (including blood), while performing RF ablation. The catheter tip design isolates illumination and collection paths within the tip electrode such that light for illuminating the tissue of interest (e.g., cardiac tissue or blood) is isolated within the tip electrode from light that returns from the tissue to the catheter tip, and vice versa. Such a design advantageously avoids saturation of the optical detector, and ensures diffusion of the illumination light within the medium of interest. The catheter has a catheter body and a tip electrode with a shell wall and a hollow cavity. The shell wall has at least an illumination opening and a collection opening.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 23, 2019
    Assignee: BIOSENSE WEBSTER, INC.
    Inventor: James K. Lee
  • Patent number: 10252031
    Abstract: A medical device has a distal member with a configuration that can be changed by means of a control handle with a control assembly employing a rotational cam, a shaft, and a pulley, where the rotational cam is rotationally mounted on a portion of the control handle for rotation by a user. The rotational cam operates on the shaft to move it proximally or distally depending on the direction of rotation which in turn rotates the pulley to draw or release a puller wire to change the configuration of the distal member of the medical device. The shaft is oriented along a diameter of the control handle. The shaft has two ends which extends through two axial guide slots in the portion of the control handle to sit two opposing helical tracks formed on inner surface of the rotational cam. The guide slots are parallel with the longitudinal axis of the control handle and therefore maintain the shaft's diametrical orientation as the rotational cam is rotated to move the shaft proximal or distally.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: April 9, 2019
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey W. Schultz
  • Patent number: 10238838
    Abstract: A catheter having an internal advancing mechanism that can advance stiffening wires or other devices, has a catheter with a catheter body, a tip section distal the catheter body, a device extending through at least the catheter body, and a control handle proximal the catheter body, where the control handle has an advancing mechanism with a threaded member, an adjustment member, and a guided member to which the device is connected, and the advancing mechanism is configured to advance and retract the device along the catheter body as controlled by a user. Each of the threaded member and the adjustment member has a generally cylindrical configuration. The threaded member has an outer surface configured with a helical guide channel. The adjustment member is configured to guide the guided member to move within the helical guide channel to advance and retract the device. The adjustment member can be rotatable over the threaded member by the user to control advancement and retraction of the device.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: March 26, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Keshava Datta, Jeffrey William Schultz
  • Patent number: 10231780
    Abstract: The present invention is directed to a system, a method and a catheter that provide improved ablation capabilities and improved energy efficiency by selectively energizing catheter electrodes on the basis of impedance measurements. In particular, the invention is directed to the selective energization of catheter radial electrodes that together with a tip electrode form a generally continuous tissue contact surface, wherein the selection is made on the basis of impedance measurement as an indication of the amount of tissue contact of each radial electrode.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: March 19, 2019
    Assignee: Biosense Webster, Inc.
    Inventor: Eduardo Jimenez
  • Patent number: 10213254
    Abstract: An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. The heat transfer assembly includes a pump, a reservoir containing a coolant, a heat transfer member, and a coolant transport network transporting coolant between at least the reservoir and the heat transfer member. In one embodiment, the heat transfer member is located within the control handle as a heat exchanger on the circuit board to receive the coolant for transferring heat from the integrated circuits to the coolant. In another embodiment, the heat transfer member is located on the circuit board directly surrounding the integrated circuits to internally cool the integrated circuit within the control handle. A second heat transfer member is located outside of the control handle as a heat exchanger.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 26, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Eduardo Jimenez, Jeffrey W. Schultz, Rogelio Plascencia, Jr., Mario Solis, Arnold Tuason, Christopher Beeckler, Ariel Garcia, Assaf Govari, Yaron Ephrath, Dean Ponzi
  • Patent number: 10194937
    Abstract: A sheath introducer for use with a catheter, has a hub and a tube through which the catheter extends, and a lock assembly which has a rotational knob that actuates a plurality of prongs arranged in a radial pattern around a hole in the hub that receives the catheter, wherein the prongs synchronously rotate in one direction to grip the catheter or in the other direction to release the catheter.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 5, 2019
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey William Schultz
  • Patent number: 10183150
    Abstract: A deflectable device, such as a catheter, is provided that includes a hinge that enhances the ability of the device to deflect or bend within a predetermined plane. The catheter comprises an elongated tubular catheter body having proximal and distal ends and at least one lumen extending therethrough. A distal segment is provided distal to the distal end of the catheter body. A tubular hinge is provided between the distal end of the catheter body and the proximal end of the distal segment. The hinge has an axis and at least one lumen extending therethrough. The tube includes at least one slot, and preferably a plurality of slots, extending part of the way through the hinge generally transverse to the axis of the hinge.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 22, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Benjamin D. McDaniel, Martin F. O'Sullivan, James K. Lee
  • Patent number: 10182734
    Abstract: A catheter for ablating tissue is provided. The catheter comprises an elongated generally-tubular catheter body having proximal and distal ends. An electrode assembly is provided at the distal end of the catheter body. The electrode assembly including a porous electrode arrangement that is generally transverse to the catheter body. The porous electrode arrangement comprises one or more electrodes electrically connected to a suitable energy source and a porous sleeve mounted in surrounding relation to the one or more electrodes and defining an open space between the porous sleeve and the one more electrodes. One or more irrigation openings fluidly connect the open space to a lumen extending through the catheter through which fluid can pass. In use, fluid passes through the lumen in the catheter, through the one or more irrigation openings, into the open space and through the porous sleeve.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: January 22, 2019
    Assignee: Biosense Webster, Inc.
    Inventors: Martin O'Sullivan, James K. Lee, Irma Hill
  • Patent number: 10143398
    Abstract: A system and method for imaging a target in a patient's body uses a pre-acquired image of the target and a catheter having a position sensor and an ultrasonic imaging sensor. The catheter is placed in the patient's body and positional information of a portion of the catheter in the patient's body is determined using the position sensor. The catheter is used to generate an ultrasonic image of the target using the ultrasonic imaging sensor. An image processor is used for determining positional information for any pixel of the ultrasonic image of the target and registering the pre-acquired image with the ultrasonic image; and a display is used for displaying the registered pre-acquired image and ultrasonic image.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: December 4, 2018
    Assignee: BIOSENSE WEBSTER, INC.
    Inventors: Andres Claudio Altmann, Assaf Govari
  • Patent number: 10058382
    Abstract: A device that shields internal organs and tissues from medical procedures performed within a patient's body, especially in the chest cavity where ablation and related procedures are performed in or near the heart, includes a catheter body, a distal section, and a barrier member that can be inflated with fluid to act as a barrier to extreme temperatures and physical trauma, and be deflated to a smaller size to facilitate entry and removal from the patient's chest cavity. In a more detailed embodiment, the barrier member is a balloon that can protect the esophagus, which can be provided with folds and shape memory elements so that the balloon expands and collapses into predetermined configurations. Fluid is fed to and drawn from the barrier member via an irrigation tubing that extends along a catheter shaft and is in communication with a lumen of a deflectable tubing section that extends through an interior cavity of the barrier member. The catheter can be adapted for uni- or bi-directional deflection.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 28, 2018
    Assignee: Biosense Webster, Inc.
    Inventors: Keshava Datta, Jeffrey W. Schultz
  • Patent number: 10046141
    Abstract: An introducer has a shaft with a central lumen, a control handle with a deflection assembly, and a tensile member with a distal portion extending along opposing sides of within the shaft and a proximal portion extending within the control handle. The deflection assembly has a deflection arm, and a rotatable member rotationally coupled to the deflection arm, wherein the rocker member has at least one pulley engaged with the proximal tensile member portion. Rotation of the deflection arm in one direction draws the proximal tensile member portion for deflecting the shaft.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 14, 2018
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey W. Schultz
  • Patent number: 10016576
    Abstract: A catheter for use in a patient's heart, especially for mapping a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal a mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for single-handed manipulation of various control mechanisms that can deflect the intermediate section and contract the mapping assembly by means of a deflection control assembly and a linear control assembly. The deflection control assembly has a deflection arm and a rocker member. The linear control assembly has a linear control member, an inner rotational member and a cam. A pair of puller members are responsive to the deflection control assembly to bi-directionally deflect the intermediate section. A third puller member is responsive to the linear control assembly to contract the generally circular portion of the mapping assembly.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: July 10, 2018
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey William Schultz
  • Patent number: 9999366
    Abstract: A catheter for use in a patient's heart, especially for mapping a tubular region of the heart, has a catheter body, a deflectable intermediate section and a distal mapping assembly that has a generally circular portion adapted to sit on or in a tubular region of the heart. A control handle of the catheter allows for single-handed manipulation of various control mechanisms that can deflect the intermediate section and contract the mapping assembly by means of a deflection control assembly and a rotational control assembly. The deflection control assembly has a deflection arm and a rocker member. The rotational control assembly has an outer rotational member, an inner rotational member and a cam. A pair of puller members are responsive to the deflection control assembly to bi-directionally deflect the intermediate section. A third puller member is responsive to the rotational control assembly to contract the generally circular portion of the mapping assembly.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: June 19, 2018
    Assignee: Biosense Webster, Inc.
    Inventor: Jeffrey William Schultz