Patents Examined by Michael F Peffley
  • Patent number: 11026745
    Abstract: An open-irrigated ablation catheter system includes a catheter body, and an electrode tip body mounted on a distal portion of the catheter body. The electrode tip body includes a proximal end configured for connection to the catheter body and a wall defining an open interior region and including one or more irrigation ports. The wall is conductive for delivering radio frequency (RF) energy. The catheter system further includes a proximal insert positioned partially within the catheter body and at least partially within the proximal end of the electrode tip body. The proximal insert includes a fluid inlet for receiving a cooling fluid delivered via the catheter body. The proximal insert forms a flow path configured to direct the cooling fluid from the fluid inlet to cool the distal portion of the catheter body and to cool a junction of the catheter body and the electrode tip body.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 8, 2021
    Assignee: Boston Scientific Scimed Inc
    Inventors: Ismail Guler, Darrell L. Rankin, David M. Flynn, Robbie Halvorson, Mark D. Mirigian
  • Patent number: 11026737
    Abstract: Embodiments of the present invention relate to cryogenic systems and methods useful to cool objects, including living tissue, to freezing or cryogenic temperatures by placing the object in thermal communication with sub-cooled supercritical nitrogen.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 8, 2021
    Assignee: Endocare, Inc.
    Inventors: John G. Baust, John M. Baust, Anthony T. Robilotto
  • Patent number: 11026738
    Abstract: The invention disclosed here generally relates to devices that can modify a property of a nerve. Specifically, the subject invention is contemplated to modify the posterior nasal nerve signal conduction in such a way so as to reduce the signals transmitted to the nasal cavity. Reduction or interruption of the nerve signals results in the reduction of the distal organ activity. In particular, embodiments of the present invention allow for increased lateral contact or apposition of the target tissue region having at least one posterior nasal nerve with the end effector surface by lateral and/or longitudinal translation of the end effector relative to the surgical probe shaft. This improved lateral surface contact has several benefits, including improved patient outcomes and patient safety as the end effector is adequately in contact with target tissue for subsequent ablation therapy.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 8, 2021
    Assignee: Arrinex, Inc.
    Inventors: Vahid Saadat, William Jason Fox, Mojgan Saadat
  • Patent number: 11020180
    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed herein, with a cinch device for positioning an ablation catheter relative to tissue during a cardiac ablation procedure. In some embodiments, a distal end of a first device may be advanced into a proximal end of a first lumen of a second device. The first device may be advanced from a distal end of the first lumen and the first device may be looped around tissue of a patient. The first device may be advanced into a distal end of a second lumen of the second device. The distal end of the first device may be advanced from a proximal end of the second lumen. The proximal and distal ends of the first device may be advanced away from a proximal end of the second device to increase contact between the first device and the tissue.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 1, 2021
    Assignee: Farapulse, Inc.
    Inventors: Raju Viswanathan, Jean-Luc Pageard
  • Patent number: 11020166
    Abstract: Disclosed is a multifunctional medical device, apparatus or system that is capable of performing a surgical procedure or operation and also capable of removing or reducing smoke particles generated by the surgical procedure or operation on a subject, the apparatus comprising a plurality of electrodes, two of which are configured to be in electrical communication with or being electrically connectable to opposite poles of a source of high voltage dc electricity to ionize, and remove or reduce smoke particles, and at least one of which is also configured to be part of a RF circuit to perform a surgical procedure or operation such as tissue cutting, cauterization, tissue sealing or coagulating at a surgical site on the subject. Also disclosed is a method of employing the above disclosed device, apparatus or system or variations thereof to perform a surgical procedure or operation at a surgical site and to remove or reduce smoke particles generated during the surgical procedure or operation.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 1, 2021
    Assignee: Gyrus Acmi, Inc.
    Inventors: Kester J. Batchelor, Richard J. Curtis, Christopher A. Cook, Eric Kurtycz
  • Patent number: 11020170
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a knife drive assembly. The end effector includes a pair of jaws, a knife, and an RF electrode assembly. The knife actuates between a pre-fired position and a fired position. An arm of the handle assembly is configured to pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, a rotary assembly, and an output assembly. The input assembly travels a first proximal distance to rotate the rotary assembly. The rotary assembly rotates in response to travel of the input assembly along the first proximal distance to drive the output assembly a first distal distance to thereby actuate the knife from the pre-fired position toward the fired position. The first distal distance is greater than the first proximal distance.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020169
    Abstract: A surgical instrument includes an end effector, a handle assembly, a knife drive assembly, and a lockout assembly. The end effector includes a pair of jaws, a knife, and an RF electrode. The handle assembly includes a housing associated with the first jaw, and an arm associated with the second jaw. The arm is pivotably coupled with the housing and pivots the second jaw between the open position and the closed position. The knife drive assembly includes a trigger slidably coupled with the housing, an actuating assembly, and a return assembly. The actuation assembly converts proximal translation of the trigger into distal actuation of the knife. The return assembly automatically actuates the knife from the fired position to the pre-fired position in response to the trigger reaching a predetermined proximal position. The lockout assembly prevents activation of the electrode and distal actuation of the knife while in the locked configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020172
    Abstract: An endoscopic forceps is provided and includes a housing having a shaft that extends therefrom. An end effector assembly is operatively connected to a distal end of the shaft and includes a pair of pivotably coupled first and second jaw members. The jaw members are movable relative to one another. A drive mechanism includes a driving structure. A link assembly includes two or more links that are operably coupled to each other and the drive structure. The two or more links are operably coupled to respective ones of the first and second jaw members.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Covidien LP
    Inventor: David M. Garrison
  • Patent number: 11020163
    Abstract: A surgical instrument includes an outer shaft defining a passageway. An inner shaft is disposed within the passageway and defines a lumen. An expandable structure has a first end coupled to a second end of the outer shaft and a second end coupled to a second end of the inner shaft. The expandable member defines a chamber. A delivery shaft includes a first end positioned within the passageway and a second end positioned within the chamber. The delivery shaft defines a channel configured to deliver a coolant out of an opening in the second end of the delivery shaft and into the chamber to move the expandable structure from an unexpanded configuration to an expanded configuration. A variable exhaust valve is in communication with the passageway and is configured to regulate pressure within the chamber. Systems and methods are disclosed.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 1, 2021
    Assignee: MEDTRONIC HOLDING COMPANY SARL
    Inventor: Stephen Nash
  • Patent number: 11020171
    Abstract: Electrosurgical instruments with passive articulation and thermal insulation are described herein. Such instruments can provide the advantages associated with passive articulation while protecting tissue and other structures from unintentional thermal damage when an end effector is pressed thereagainst to effect articulation while at an elevated temperature due to use. In one embodiment, such an instrument can include a distal end effector with jaws to clamp tissue, a proximal actuating portion, an energy delivery surface that contacts grasped tissue, and a passive articulating portion disposed between the end effector and the actuating portion. The articulating portion can be configured to selectively permit movement of the end effector relative to the actuating portion in response to external forces acting on the end effector. Further, an outward-facing surface of at least one of the first and second jaws can be covered in a thermally insulating material.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: June 1, 2021
    Assignee: Ethicon LLC
    Inventor: Barry Worrell
  • Patent number: 11020176
    Abstract: Provided herein are methods, systems, and devices for increasing heat shock protein expression and treating conditions for which increased heat shock protein expression is expected to be beneficial using thermal ablation.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 1, 2021
    Assignee: MEDTRONIC ARDIAN LUXEMBOURG S.A.R.L.
    Inventors: Ayala Hezi-Yamit, Susan Edwards, Carol Sullivan
  • Patent number: 11013555
    Abstract: Devices and methods for delivering fluid to tissue during ablation therapy are described herein. An exemplary device can include an elongate body having an inner lumen, outlet ports, and an ablation element configured to heat tissue. A flow resistance of the elongate body can increase along a length of the elongate body containing the outlet ports in a proximal to distal direction. This can be accomplished by, for example, varying outlet port size or relative spacing, decreasing a cross-sectional area of the inner lumen through which fluid can flow using a flow diverter or tapered inner lumen sidewalls, or limiting a ratio between a total area of the outlet ports and a cross-sectional area of the inner lumen. Adjusting flow resistance of the elongate body can provide more uniform fluid distribution or a desired non-uniform distribution.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 25, 2021
    Assignee: Thermedical, Inc.
    Inventors: Michael G. Curley, Gregory R. Eberl, Jason M. Clevenger, Michael T. Howard, Erik Delly
  • Patent number: 11013553
    Abstract: The present disclosure provides a treatment method for hypertrophic cardiomyopathy applied to an ablation system comprising an ablation needle assembly and an energy generating device coupled to the ablation needle assembly. The treatment method comprises: advancing a distal end of the ablation needle assembly from an outside of a body through an intercostal and a cardiac apex into a ventricular septum; turning on the energy generating device, and using the distal end of the ablation needle assembly to perform radio-frequency ablation or microwave ablation to hypertrophied myocardium within the ventricular septum to make it necrotic and/or atrophic. The present disclosure avoids risk and pain of surgical septal myectomy and extracorporeal circulation in surgical resection, and does not have risk of large-area myocardial infarction caused by alcohol ablation. It is easy to operate and slight trauma to patients.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 25, 2021
    Assignee: HANGZHOU NUO CHENG MEDICAL INSTRUMENT CO., LTD.
    Inventors: Liwen Liu, Tingchao Zhang, Yang Li, Bobo Peng, Xinjiong Qiu
  • Patent number: 11013551
    Abstract: A tissue ablation system comprises an ablation source, such as an RF ablation source, configured for generating a common power signal, and a power multiplexor configured for splitting the power signal into first and second power signals, substantially attenuating the second power signal relative to the first power signal to create nominal and attenuated power signals, and sequentially delivering the nominal power signal to each tissue ablation probe, while delivering the attenuated power signal to the remaining ablation probes to which the nominal power signal is currently not delivered.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: May 25, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Paul DiCarlo, Robert F. Rioux
  • Patent number: 11013550
    Abstract: The present invention is an ablation device having a screen sphere configuration for the ablation of marginal tissue surrounding a tissue cavity. The device includes a probe having a nonconductive elongated shaft including at least one lumen therethrough and a nonconductive distal portion extending from the shaft. The nonconductive distal portion includes a plurality distal ports and a plurality of proximal ports in communication with the at least one lumen of the shaft. The device further includes an electrode array including a plurality of independent conductive wires extending through the lumen and positioned along an external surface of the nonconductive distal portion, each of the plurality of wires passes through at least an associated one of the proximal ports and through at least a corresponding one of the distal ports.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 25, 2021
    Assignee: Innoblative Designs, Inc.
    Inventors: Robert F. Rioux, Ryan M. Bean
  • Patent number: 11013548
    Abstract: A control system for use with an electrosurgical generator which delivers electrosurgical energy to tissue has a control module. The module includes a processor executing an algorithm. The algorithm has the steps of determining a sensed voltage value corresponding to a sensed voltage signal output by the electrosurgical generator and determining a sensed current value corresponding to a sensed current signal output by the electrosurgical generator. The algorithm has the steps of determining phase information corresponding to a phase shift between the voltage signal and the current signal and determining a characteristic related to the electrosurgical energy delivered to the tissue using the phase information, the sensed voltage value and the sensed current value.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 25, 2021
    Assignee: COVIDIEN AG
    Inventors: Robert Behnke, Robert H. Wham
  • Patent number: 11007001
    Abstract: Some embodiments relate to a method of reducing excess mucosa production and/or secretion in the respiratory tract, comprising: introducing into the lumen of the trachea or the lumen of the bronchi a device configured for damaging nerve tissue or blocking neural conduction in the surroundings of the lumen; and activating the device to damage the nerve tissue enough to suppress parasympathetic nerve activity which causes the excess mucosa production and/or secretion.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 18, 2021
    Assignee: Sonivie Ltd.
    Inventors: Charles S. Carignan, Or Shabtay, Maya Rosenstein, Dalit Shav, Talia Cohen Keizman, Daniel Naor, Ofek Admon
  • Patent number: 11006971
    Abstract: An ultrasonic clamp coagulator apparatus is disclosed including a housing including an actuator, an outer tube, an ultrasonic waveguide, an ultrasonically actuated blade, a clamp member pivotable with respect to the blade, and a force limiting mechanism including a first compression spring having a first spring constant, positioned between the actuator and the clamp arm, and a second compression spring having a second spring constant less than the first spring constant. The first compression spring transfers a force at a first rate as a function of a motion of the actuator to pivotably move the clamp member toward the blade. The second compression spring transfers a force as a function of the tissue thickness positioned between the clamp member and the blade. At least one of the first and second compression springs is pre-compressed to provide a preload less than the respective spring constant.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: May 18, 2021
    Assignee: Ethicon LLC
    Inventors: Craig N. Faller, Kevin L. Houser, Mark A. Neurohr
  • Patent number: 11007006
    Abstract: A surgical instrument is provided and includes a housing having a shaft. An end effector assembly operatively connects to the shaft and has a pair of first and second jaw members. A jaw insert is operably associated with the first and second jaw members. The jaw insert includes one or more cam slots defined therein configured to receive a cam pin that upon movement thereof rotates the first and second jaw members from an open position to a clamping position and an opening defined therein configured to securely house a pivot pin that provides a point of pivot for the first and second jaw members. The jaw insert is manufactured from an insulative medium to dielectrically isolate the first and second jaw members.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 18, 2021
    Assignee: COVIDIEN LP
    Inventors: Duane E. Kerr, Glenn A. Horner
  • Patent number: 11000684
    Abstract: Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 11, 2021
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventors: Saurav Paul, Troy T. Tegg, Israel A. Byrd, Riki Thao, Harry A. Puryear, Linda Nemec