Patents by Inventor Huisun Wang

Huisun Wang 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).

  • Patent number: 12268432
    Abstract: A forceps including a gripping assembly. The gripping assembly includes an upper jaw and a lower jaw. The upper jaw includes a proximal end and a distal end. The upper jaw includes an upper tooth having an upper proximally facing canted tooth surface and an upper distally facing canted tooth surface. The lower jaw includes a proximal end and a distal end. The lower jaw includes a socket having a lower distally facing canted socket surface and a lower proximally facing socket surface. The upper jaw, the lower jaw, or both are moveable so that the gripping assembly moves between an open position and a gripping position, in the gripping position, a gap is defined between the upper distally facing canted tooth surface and the lower proximally facing socket surface.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: April 8, 2025
    Assignee: Gyrus ACMI, Inc.
    Inventors: John Mensch, Zane R. Ward, Jeffrey Nelson, Huisun Wang, Nikhil M. Murdeshwar
  • Patent number: 12226145
    Abstract: An instrument including a first arm, a second arm, and a blade. The first arm includes a lumen in communication with a source of irrigation fluid and one or more outlets in communication with the lumen for delivering the irrigation fluid to a surgical site. The instrument is switchable between a first configuration and a second configuration. In the first configuration, the instrument is configured to deliver a first therapy current through a distal end of the first arm, a distal end of the second arm, or both. In the second configuration, a distal end of the blade extends beyond the distal end of the first arm and beyond the distal end of the second arm.
    Type: Grant
    Filed: December 28, 2023
    Date of Patent: February 18, 2025
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Eric G. Tate, Huisun Wang, Riyad Moe
  • Patent number: 12082874
    Abstract: An irrigated ablation catheter includes a shaft and an electrode assembly affixed to a distal end of the shaft. The distal electrode assembly includes a manifold and an ablation electrode affixed together and extending along a center axis. The electrode has a distal irrigation passageway extending therethrough to an opening at a distal tip of the electrode. The opening of the irrigation passageway is offset in distance from the center axis, and allows a thermal sensor such as a thermocouple to be located in a sensor cavity in the electrode on or near the center axis. One variation involves providing a pair of distal irrigation passageways through the electrode where both of the openings of the passageways are offset from the center axis. The thermal sensor in this variation is located in the sensor cavity substantially on the center axis.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 10, 2024
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Huisun Wang, Christopher J. Geurkink
  • Publication number: 20240197436
    Abstract: A device comprising: (a) one or more markers, some or all of which are expandable rounded members that are expandable from a stored state to an expanded state and when in the expanded state each of the expandable rounded members expand to move into contact with a lumen in an organ; and (b) one or more tissue tags connected to the expandable rounded members or the expandable rounded members being made of a magnetized material; and wherein the expandable rounded members are configured to be located within and deployed from an insertion mechanism into the lumen in the organ.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Kester Julian Batchelor, Huisun Wang, Theodore C. Blus, Nikhil M. Murdeshwar
  • Publication number: 20240173073
    Abstract: The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002? to about 0.008?.
    Type: Application
    Filed: December 8, 2023
    Publication date: May 30, 2024
    Inventors: Huisun Wang, Sacha C. Hall
  • Patent number: 11986358
    Abstract: A device comprising: (a) one or more markers, some or all of which are expandable rounded members that are expandable from a stored state to an expanded state and when in the expanded state each of the expandable rounded members expand to move into contact with a lumen in an organ; and (b) one or more tissue tags connected to the expandable rounded members or the expandable rounded members being made of a magnetized material; and wherein the expandable rounded members are configured to be located within and deployed from an insertion mechanism into the lumen in the organ.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 21, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester J. Batchelor, Huisun Wang, Theodore C. Blus, Nikhil M. Murdeshwar
  • Publication number: 20240148431
    Abstract: An instrument including a first arm, a second arm, and a blade. The first arm includes a lumen in communication with a source of irrigation fluid and one or more outlets in communication with the lumen for delivering the irrigation fluid to a surgical site. The instrument is switchable between a first configuration and a second configuration. In the first configuration, the instrument is configured to deliver a first therapy current through a distal end of the first arm, a distal end of the second arm, or both. In the second configuration, a distal end of the blade extends beyond the distal end of the first arm and beyond the distal end of the second arm.
    Type: Application
    Filed: December 28, 2023
    Publication date: May 9, 2024
    Inventors: Kester Julian Batchelor, Eric G. Tate, Huisun Wang, Riyad Moe
  • Publication number: 20240148428
    Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 9, 2024
    Inventors: Kester Julian Batchelor, Huisun Wang
  • Patent number: 11957404
    Abstract: An end effector assembly of a forceps includes a first jaw with a tissue sealing surface and an electrode on the sealing surface, and a second jaw with a tissue sealing surface and an electrode on the sealing surface. The first jaw and the second jaw move between an open position and a closed position. The sealing surface of at least one of the first jaw and the second jaw has a rigid medial section and flexible lateral sections.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 16, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Huisun Wang, Kester Julian Batchelor, William Butler
  • Publication number: 20240115289
    Abstract: Devices and systems comprising a rotational drive shaft formed of wire filars or one or more coils for use in high-speed rotational medical procedures, e.g., atherectomy, are disclosed. Generally, a preferred embodiment of the drive shaft for transferring torque and activating rotation of a tool such as an abrasive element that is attached near a distal end of the drive shaft may be constructed with a heat shrinkable polymer layer covering at least a middle portion of the drive shaft, wherein a proximal-most portion of the drive shaft is not covered by the heat shrinkable polymer layer. In certain embodiments, the drive shaft may also comprise a distal portion that is not covered by the heat shrinkable layer, most preferably the distal end of the heat shrinkable layer in this embodiment is configured to remain within a delivery catheter or sheath during a medical procedure.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Inventors: Jacob P. Draxler, Nicholas Ellering, Huisun Wang
  • Patent number: 11937867
    Abstract: A surgical device that includes a first support member extending along a longitudinal axis; a bladder located on the first support member; a first sealing member located on the bladder; and a second sealing member located on the bladder. The sealing member is located on one side of the longitudinal axis; and the second sealing member is located on another side of the longitudinal axis. The bladder is inflatable, and inflating the bladder changes a position of the first sealing member, the second sealing member, or both relative to the first support member.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 26, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Jeffrey Nelson, Huisun Wang
  • Patent number: 11890049
    Abstract: An instrument including a first arm, a second arm, and a blade. The first arm includes a lumen in communication with a source of irrigation fluid and one or more outlets in communication with the lumen for delivering the irrigation fluid to a surgical site. The instrument is switchable between a first configuration and a second configuration. In the first configuration, the instrument is configured to deliver a first therapy current through a distal end of the first arm, a distal end of the second arm, or both. In the second configuration, a distal end of the blade extends beyond the distal end of the first arm and beyond the distal end of the second arm.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 6, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester J. Batchelor, Eric G. Tate, Huisun Wang, Riyad Moe
  • Patent number: 11877787
    Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: January 23, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Huisun Wang
  • Patent number: 11871986
    Abstract: The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002? to about 0.008?.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: January 16, 2024
    Assignee: St. Jude Medical, Atrial Fibrillation Division Inc.
    Inventors: Huisun Wang, Sacha C. Hall
  • Patent number: 11864726
    Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: January 9, 2024
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Huisun Wang
  • Patent number: 11832870
    Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 5, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Huisun Wang
  • Patent number: 11819258
    Abstract: Apparatus and associated methods relate to controlling electrical power of an electrotherapeutic signal that is provided to a biological tissue engaged by an electrosurgical instrument during a medical procedure. Electrical power—a product of a voltage difference across and an electrical current conducted by the engaged biological tissue—is controlled according to a therapeutic schedule. The electrotherapeutic schedule can be reduced or terminated in response to a termination criterion being met. In some examples, the termination criterion is a current characteristic, such as, for example, a decrease in current conducted by the engaged biological tissue. In some examples, the termination criterion is a biological tissue resistance characteristic, such as, for example, an increase in the biological tissue resistance that exceeds a predetermined delta resistance value.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 21, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Huisun Wang
  • Publication number: 20230218337
    Abstract: A forceps including a gripping assembly. The gripping assembly includes an upper jaw and a lower jaw. The upper jaw includes a proximal end and a distal end. The upper jaw includes an upper tooth having an upper proximally facing canted tooth surface and an upper distally facing canted tooth surface. The lower jaw includes a proximal end and a distal end. The lower jaw includes a socket having a lower distally facing canted socket surface and a lower proximally facing socket surface. The upper jaw, the lower jaw, or both are moveable so that the gripping assembly moves between an open position and a gripping position, in the gripping position, a gap is defined between the upper distally facing canted tooth surface and the lower proximally facing socket surface.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Inventors: John Mensch, Zane R. Ward, Jeffrey Nelson, Huisun Wang, Nikhil M. Murdeshwar
  • Patent number: 11684411
    Abstract: An effector includes a tubular body having a proximal end and a distal end. The effector holds a plug or closure at the distal end of the tubular body; an active electrode at the distal end of the body; an insulator on the body; and one or more return electrodes on the insulator. The body dissipates heat generated by the one or more return electrodes from the distal end of the body to the proximal end of the body.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: June 27, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester Julian Batchelor, Huisun Wang, Jeffrey J. Nelson, Cristian Spanu, Nikhil M. Murdeshwar
  • Patent number: 11633227
    Abstract: A forceps including a gripping assembly. The gripping assembly includes an upper jaw and a lower jaw. The upper jaw includes a proximal end and a distal end. The upper jaw includes an upper tooth having an upper proximally facing canted tooth surface and an upper distally facing canted tooth surface. The lower jaw includes a proximal end and a distal end. The lower jaw includes a socket having a lower distally facing canted socket surface and a lower proximally facing socket surface. The upper jaw, the lower jaw, or both are moveable so that the gripping assembly moves between an open position and a gripping position. In the gripping position, a gap is defined between the upper distally facing canted tooth surface and the lower proximally facing socket surface.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 25, 2023
    Assignee: Gyrus ACMI, Inc.
    Inventors: John R. Mensch, Zane R. Ward, Jeffrey J. Nelson, Huisun Wang, Nikhil M. Murdeshwar