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).
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Patent number: 11957404Abstract: 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: GrantFiled: September 2, 2022Date of Patent: April 16, 2024Assignee: Gyrus ACMI, Inc.Inventors: Huisun Wang, Kester Julian Batchelor, William Butler
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Publication number: 20240115289Abstract: 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: ApplicationFiled: October 6, 2022Publication date: April 11, 2024Inventors: Jacob P. Draxler, Nicholas Ellering, Huisun Wang
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Patent number: 11937867Abstract: 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: GrantFiled: October 26, 2020Date of Patent: March 26, 2024Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Jeffrey Nelson, Huisun Wang
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Patent number: 11890049Abstract: 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: GrantFiled: June 6, 2016Date of Patent: February 6, 2024Assignee: Gyrus ACMI, Inc.Inventors: Kester J. Batchelor, Eric G. Tate, Huisun Wang, Riyad Moe
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Patent number: 11877787Abstract: 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: GrantFiled: May 14, 2020Date of Patent: January 23, 2024Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Huisun Wang
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Patent number: 11871986Abstract: 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: GrantFiled: July 19, 2021Date of Patent: January 16, 2024Assignee: St. Jude Medical, Atrial Fibrillation Division Inc.Inventors: Huisun Wang, Sacha C. Hall
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Patent number: 11864726Abstract: 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: GrantFiled: May 14, 2020Date of Patent: January 9, 2024Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Huisun Wang
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Patent number: 11832870Abstract: 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: GrantFiled: May 14, 2020Date of Patent: December 5, 2023Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Huisun Wang
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Patent number: 11819258Abstract: 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: GrantFiled: May 14, 2020Date of Patent: November 21, 2023Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Huisun Wang
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Publication number: 20230218337Abstract: 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: ApplicationFiled: March 21, 2023Publication date: July 13, 2023Inventors: John Mensch, Zane R. Ward, Jeffrey Nelson, Huisun Wang, Nikhil M. Murdeshwar
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Patent number: 11684411Abstract: 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: GrantFiled: August 28, 2020Date of Patent: June 27, 2023Assignee: Gyrus ACMI, Inc.Inventors: Kester Julian Batchelor, Huisun Wang, Jeffrey J. Nelson, Cristian Spanu, Nikhil M. Murdeshwar
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Patent number: 11633227Abstract: 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: GrantFiled: May 16, 2019Date of Patent: April 25, 2023Assignee: Gyrus ACMI, Inc.Inventors: John R. Mensch, Zane R. Ward, Jeffrey J. Nelson, Huisun Wang, Nikhil M. Murdeshwar
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Publication number: 20230044200Abstract: 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: ApplicationFiled: September 2, 2022Publication date: February 9, 2023Inventors: Huisun Wang, Kester Julian Batchelor, William Butler
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Patent number: 11553979Abstract: An electrosurgical instrument can be provided that includes a pair of opposing jaws, a channel in at least one of the opposing jaws for receiving a reciprocating blade, and a fluid distribution system in communication with the one or more fluid openings located within the channel for delivering a fluid to the jaws.Type: GrantFiled: February 28, 2018Date of Patent: January 17, 2023Assignee: Gyrus ACMI, Inc.Inventors: Kester J. Batchelor, Huisun Wang
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Patent number: 11547467Abstract: A medical device is disclosed. The medical device comprises a bipolar forceps including a jaw assembly. The jaw assembly comprises a first jaw body; a second jaw body; and a sealing plate. A therapy current can be passed between the sealing plate and the first jaw body. The therapy current can be restricted from passing between the first jaw body and the second jaw body. The therapy current can be restricted from passing between the sealing plate and the second jaw body.Type: GrantFiled: January 11, 2016Date of Patent: January 10, 2023Assignee: Gyrus ACMI, Inc.Inventors: Kester J. Batchelor, Huisun Wang, Riyad Moe
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Publication number: 20230000583Abstract: An electrosurgical assembly that includes one or more electrodes, and one or more AC conductors electrically connecting the one or more electrodes to a power source that is configured to generate and output an AC power signal to the one or more electrodes via the one or more AC conductors. A rectifier is electrically connected to the one or more AC conductors, and configured to convert the AC power signal into a DC power signal. A light source is electrically powered by the DC power signal.Type: ApplicationFiled: July 13, 2022Publication date: January 5, 2023Inventors: Kester Julian Batchelor, Riyad Moe, Huisun Wang
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Patent number: 11523860Abstract: An electrosurgical medical device that includes a jaw assembly. The jaw assembly includes a first jaw body and a cutting member; and a second jaw body. During a first use state, the medical device is configured to pass a therapy current supplied by a power source between the first jaw body and the second jaw body to electrosurgically effect an anatomical feature. During a second use state, an anatomical feature is electrosurgically effected by contacting the anatomical feature with a medial edge of the cutting member while a second therapy current from the power source is passed between the cutting member and the first jaw body and/or the second jaw body.Type: GrantFiled: August 7, 2019Date of Patent: December 13, 2022Assignee: Gyrus ACMI, Inc.Inventors: Kester J. Batchelor, Huisun Wang
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Patent number: 11517433Abstract: A delivery device for a collapsible heart valve includes an operating handle and a catheter assembly. The operating handle includes a frame defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, and a coupler having locked and unlocked conditions, the coupler being operatively connected to the carriage assembly for movement therewith. The catheter assembly includes a shaft around which a valve-receiving compartment is defined, the shaft being operatively connected to one of the frame or the carriage assembly, and a distal sheath operatively connected to the carriage assembly for movement therewith between a closed condition adapted to maintain the valve in the compartment and an open condition adapted to fully deploy the valve.Type: GrantFiled: December 20, 2019Date of Patent: December 6, 2022Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Bradley Charles Knippel, Huisun Wang, Ralph Joseph Thomas, Jacob John Daly
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Patent number: 11478300Abstract: The present invention pertains to multiple piece irrigated ablation electrode assemblies wherein the irrigation channels are insulated or separated from at least one temperature sensing mechanism within the distal portion of the electrode assembly. The present invention further pertains to methods for improved assembly and accurate measurement and control of the electrode temperatures while effectively irrigating the device and target areas.Type: GrantFiled: November 8, 2019Date of Patent: October 25, 2022Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.Inventors: Huisun Wang, Jeremy D. Dando, Dale E. Just, Allen P. Moore
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Patent number: 11464561Abstract: 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: GrantFiled: May 23, 2017Date of Patent: October 11, 2022Assignee: Gyrus ACMI, Inc.Inventors: Huisun Wang, Kester J. Batchelor, William Butler