Bipolar Electrodes Patents (Class 606/48)
  • Patent number: 10765447
    Abstract: The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 8, 2020
    Assignee: CORDYNAMIX, INC.
    Inventors: Michael D. Laufer, Freddy Abnousi
  • Patent number: 10743930
    Abstract: An improved surgical instrument having an end effector mounted on the end of an elongate shaft extending from a handle. The end-effector has different operations, including grasping, cutting, and sealing and/or coagulating tissue, and one of the operations is controlled by a drive handle mechanism. The drive handle mechanism includes an actuator, a drive shaft and a spring assembly for transferring movement of the actuator to the drive shaft, which in turn controls the end effector. The drive handle mechanism limits the amount of force transferred from the drive handle mechanism to the end effector, preventing damage to the tissue. As the actuator is operated, the spring assembly transfers the movement of the actuator to the drive shaft and the end effector. At the same time, the spring assembly compresses to absorb some of the force applied. Such configuration prevents the tissue being unintentionally damaged by the end effector.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: August 18, 2020
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Marno Nagtegaal
  • Patent number: 10722299
    Abstract: An ultrapolar electrosurgery blade and an ultrapolar electrosurgery pencil. The ultrapolar electrosurgery blade has a non-conductive planar member with opposing planar sides, a cutting end, and an opposite non-cutting end, first active and return electrodes located on one opposing planar side, and second active and return electrodes located on the other opposing planar side.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: July 28, 2020
    Assignee: I.C. Medical, Inc.
    Inventor: Ioan Cosmescu
  • Patent number: 10722291
    Abstract: The invention concerns a multifunctional electrosurgical device for treating biological tissues comprising a first member and a second member linked by a hinge allowing the members to be moved together and apart from each other; the first member comprising, at the front end of same, a first electrode for forming a first electrical contact with the tissues and the second member comprising, at the front end of same, a second electrode for forming a second electrical contact with the tissues. The first electrode has a concave cross-section, capable of partially housing the second electrode and of making the second electrode protrude from the first electrode when the two members are moved together. The device is remarkable in that the electrodes are configured to allow the formation of the first electrical contact on the outer surface of the first electrode and the formation of the second electrical contact on the protruding part of the second electrode.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 28, 2020
    Inventors: Franck Sarrazin, Nicolas Rousseau
  • Patent number: 10716616
    Abstract: An electrode assembly for use with an electrosurgical instrument includes a pair of opposing jaw members and an electrode positioned on each jaw member. One or both of the electrodes includes a tissue contacting surface that has an outer periphery and defines a side surface depending therefrom. The tissue contacting surface and the side surface include a conjoining edge formed at a first predetermined angle that defines a first linear transition zone dimensioned to reduce arcing between the opposing jaw members during activation of the electrosurgical instrument.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: July 21, 2020
    Assignee: COVIDIEN LP
    Inventor: James A. Gilbert
  • Patent number: 10702332
    Abstract: A forceps includes an end effector assembly having a stop and a plurality of overmold teeth within at least one jaw member. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a stop molded within an insulative housing, and an insulator plate with the overmold teeth formed from plastic. The overmold teeth extend through openings within a sealing plate and protrude past the tissue sealing surface of the sealing plate. The stop primarily controls the gap distance between opposing jaw members by bearing most of an applied load and the overmold teeth assist in controlling the gap distance by bearing the remaining applied load.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: July 7, 2020
    Assignee: COVIDIEN LP
    Inventors: John R. Twomey, Dylan R. Kingsley, James D. Allen, IV, Sean T. O'Neill, Jeffrey M. Roy
  • Patent number: 10675046
    Abstract: An endoscopic forceps includes an elongate shaft defining an instrument axis. An end effector includes first and second jaw members each supporting an opposed sealing surface for clamping tissue. At least one of the jaw members is movable relative to the instrument axis such that the jaw members are movable between a first spaced-apart configuration and a second closed configuration for grasping tissue. A cutting instrument includes a reciprocating blade translatable relative to the sealing surfaces to sever tissue clamped between the jaw members. The reciprocating blade contacts an undersurface of at least one of the jaw members when the jaw members are in the second configuration to define a gap distance between the sealing surfaces. A handle adjacent the proximal end of the elongate shaft is operable to induce motion in the jaw members, and an actuator is operable to selectively translate the reciprocating blade.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 9, 2020
    Assignee: COVIDIEN LP
    Inventors: Duane E. Kerr, David M. Garrison, Dylan R. Kingsley, William H. Nau, Jr., Jeffrey R. Townsend, Jeffrey R. Unger
  • Patent number: 10653474
    Abstract: A working surface of the electrode head, designed to be essentially hemispherical in shape, is made of a suitable high-temperature-resistant metal. The electrode head is supplied with power via an electrical connecting line. The rear surface of the electrode head forming the sectional surface of the hemisphere is planar and is covered with an insulating cover made of a ceramic material. The transitional region from the working surface to the rear surface does not have an edge but instead is rounded with a minimum radius of curvature, which is substantially greater than one-thirtieth of the width, which corresponds to the hemisphere diameter (=twice the radius of the hemisphere), which is the dimension of the electrode head in the direction of its maximum extent. The relatively large radius of curvature prevents the main activity of the electrode from occurring at its boundary due to excessively high local current densities.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: May 19, 2020
    Assignee: OLYMPUS WINTER & IBE GMBH
    Inventor: Christoph Knopf
  • Patent number: 10631861
    Abstract: A surgical instrument includes a body assembly, a shaft assembly extending distally from the body assembly along a shaft axis, and an end effector at a distal end of the shaft assembly. The shaft assembly includes an outer tube configured to rotate relative to the body assembly about the shaft axis. The surgical instrument further includes a slip ring assembly configured to enable electrical communication between the shaft assembly and the body assembly while permitting relative rotation therebetween. The slip ring assembly includes a first electrical contact supported by the outer tube, and a second electrical contact electrically coupled with the first electrical contact and positioned radially outward of the outer tube. The first electrical contact is configured to rotate with the outer tube about the shaft axis relative to the second electrical contact while the first and second electrical contacts remain electrically coupled.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 28, 2020
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Jason L. Harris, David C. Yates, Chester O. Baxter, III, Gregory J. Bakos
  • Patent number: 10617464
    Abstract: In the case of an instrument (10) for coagulation and fusion as well as for severing vessels, provision is made for two shanks (19, 20), between which a vessel is to be gripped and fused. A blade (21) for severing the coagulated and fused vessel is provided with an isolator (40), which isolates the blade (21) against at least one of the electrodes or shanks (19, 20), respectively. On the other hand, the blade (21) is preferably in mechanical contact with at least one of the electrodes or shanks (19, 20), respectively, so that a safe separation of the fused biological tissue or vessel, respectively, is attained. This concept can be used to increase the safety of surgery and to miniaturize the tool (18) towards smaller sizes.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 14, 2020
    Assignee: Erbe Elektromedizin GmbH
    Inventor: Martina Düppuis
  • Patent number: 10610290
    Abstract: A handheld electrosurgical instrument with jaws at a distal end of a shaft. For moving the jaws, the instrument includes a linkage structure with at least three pivots which are movable relative to the housing and with at least pivot which is fixed to the housing. By this arrangement, one of the movable pivots may move as a substitute for movement of the jaws, and the instrument may therefore always have the same limits for handle movement e.g. also if the jaws are prevented from moving. Additionally, a more uniform closure pressure may be ensured independently on the force applied to the handle.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 7, 2020
    Assignee: LINA MEDICAL INTERNATIONAL OPERATIONS AG
    Inventors: Peter Bjorn-Rasmussen, Henrik Bisgaard Poulsen
  • Patent number: 10595933
    Abstract: An electrosurgical forceps includes an end effector including a first jaw member having a proximal portion including a first jaw guide member and a distal portion including a first tissue contacting surface, and a second jaw member having a proximal portion including a second jaw guide member and a distal portion including a second tissue contacting surface. The first and second tissue contacting surfaces each include a shear edge disposed between stepped surfaces. The jaw members are vertically movable between an open position and a first approximated position in which the tissue contacting surfaces vertically oppose and laterally align with each other, and laterally movable between the first approximated position and a second approximated position to laterally displace the tissue contacting surfaces with respect to each other. The jaw guide members control an open angle between the jaw members during movement between the first and second approximated positions.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: March 24, 2020
    Assignee: COVIDIEN LP
    Inventors: Weijiang Ding, Kai Liu
  • Patent number: 10575744
    Abstract: A device, system, and method for mapping myocardial tissue, such as epicardial tissue on the right ventricle. A system for mapping myocardial tissue may include a mapping device having a distal portion that includes a distal assembly sized and configured to be positioned within the pericardial space. The distal assembly may include an expandable shell, at least one inflatable or expandable element within the expandable shell, and a mapping electrode assembly. Inflation or expansion of the at least one inflatable or expandable element, and therefore expansion of the expandable shell, within the pericardial space may provide sufficient force of the mapping electrodes against the myocardial tissue being mapped. The system may also include a delivery sheath with a retention element for controllably retracting the device within the sheath during delivery and removal of the device from the pericardial space.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 3, 2020
    Assignee: Medtronic CryoCath LP
    Inventors: Megan M. Schmidt, Paul A. Iaizzo
  • Patent number: 10561463
    Abstract: A handle for longitudinal movement of a first tubular member over a second tubular member includes a handle body, a nose cone, a locking mechanism, and a retraction control. The nose cone has a sleeve and an outer wall that define a control channel therebetween. The nose cone is moveable over the handle body between extended and retracted positions. The locking mechanism has locked and unlocked positions for selectively fixing the nose cone in the extended and retracted positions. A finger of the retraction control is positioned within the control channel of the nose cone. The retraction control has first and second positions relative to the nose cone for transitioning the locking mechanism between the locked and unlocked position and for moving the nose cone between the extended and retracted positions.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 18, 2020
    Assignee: COVIDIEN LP
    Inventors: William J. Dickhans, Carol L. Shaffer, Alex A. Peterson, Arlen J. Reschke
  • Patent number: 10531909
    Abstract: A treatment instrument includes a first treatment portion including a first member with a first contact surface and a second member with a second contact surface; a movement mechanism to switch between a closed position where the first and second contact surfaces are close to each other and an open position where the first and second contact surfaces are separated each other; and a second treatment portion juxtaposed to the first treatment portion. A distal end of the second treatment portion is located at a distal side in the longitudinal axis than a distal end of the first treatment portion on the closed position.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 14, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Hiroto Tomiya, Shinya Masuda, Yuki Kawaguchi, Tomoyuki Kaga
  • Patent number: 10524852
    Abstract: A surgical end effector includes a cutting member, a first jaw, and a second jaw. The first jaw includes a first uninterrupted electrically conductive region. The second jaw includes an elongate slot extending longitudinally along a length of the second jaw member, the elongate slot defining a longitudinal axis aligned with the elongate slot. The second jaw also includes a second electrode surface extending between a proximal end and a distal end, the second electrode surface including a proximal interrupted electrically conductive region, a plurality of non-conductive stop members disposed on the proximal interrupted electrically conductive region, and a distal uninterrupted electrically conductive region distal to the proximal interrupted electrically conductive region.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: January 7, 2020
    Assignee: Ethicon LLC
    Inventors: David J. Cagle, Donna L. Korvick, Eric N. Johnson
  • Patent number: 10507053
    Abstract: An ultrapolar electrosurgery blade assembly with argon beam capability and an ultrapolar electrosurgery pencil with argon beam capability that are both capable of using monopolar energy in a bipolar mode for cutting and coagulation and using ionized gas for cutting and coagulation.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: December 17, 2019
    Assignee: I.C. Medical, Inc.
    Inventor: Ioan Cosmescu
  • Patent number: 10456191
    Abstract: A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: October 29, 2019
    Assignee: GYRUS ACMI, INC.
    Inventors: Kester J Batchelor, Richard J Curtis, Ryan J Windgassen
  • Patent number: 10383682
    Abstract: A resectoscope includes a fixed electrode adapted to connect to a first electrical potential, a movable electrode adapted to connect to a second electrical potential and biased transversely towards the fixed electrode, and a spacer coupled to the movable electrode. The movable electrode and the spacer are longitudinally movable relative to the fixed electrode between a first position, wherein the spacer is disposed between the fixed electrode and the movable electrode so as to maintain a spacing between the movable electrode and the fixed electrode against the bias of the movable electrode, and a second position, wherein the spacer is disposed distally of the fixed electrode, allowing the movable electrode to move transversely towards the fixed electrode under the bias of the movable electrode.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: August 20, 2019
    Assignee: COVIDIEN LP
    Inventors: Joe D. Sartor, John A. Hammerland, III, Jonathan P. Whittle
  • Patent number: 10342601
    Abstract: An end effector assembly for an electrosurgical device includes first and second jaw members movable between spaced-apart and approximated positions for grasping tissue therebetween. The jaw members cooperate to define a tissue grasping area. One or both of the jaw members includes an inner electrode. One or both of the jaw members includes first and second outer electrodes disposed on either side of the inner electrode. The inner and outer electrodes are configured to conduct energy through tissue grasped within the tissue grasping area to seal tissue. The inner and outer electrodes define different configurations such that, upon conduction of energy through tissue grasped within the tissue grasping area, tissue disposed adjacent the outer electrodes is boiled before boiling of tissue disposed adjacent the inner electrodes.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: July 9, 2019
    Assignee: COVIDIEN LP
    Inventors: Craig A. Keller, Guillaume Lessard, Richard M. Ferrell
  • Patent number: 10342610
    Abstract: A surgical device integrating a suction mechanism with a coagulation mechanism is provided for improving lesion creation capabilities. The device comprises an elongate member having an insulative covering attached about means for coagulating soft tissue. Openings through the covering expose regions of the coagulation-causing elements and are coupled to lumens in the elongate member which are routed to a vacuum source. A fluid source to passively transport fluid along the contacted soft tissue surface may be provided in order to push the maximum temperature deeper into tissue.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 9, 2019
    Assignee: AtriCure, Inc.
    Inventors: Sidney D. Fleischman, James G. Whayne, Earl W. Rogers
  • Patent number: 10327842
    Abstract: A medical device includes an elongated sleeve having a longitudinal axis, a proximal end and a distal end. A cutting member having a plurality of sharp edges is formed from a wear-resistant ceramic material is carried at the distal end of the elongated sleeve. A motor drive is coupled to the proximal end of the elongated sleeve to rotate the sleeve at cutting member at high RPMs to cut bone and other hard tissue. An electrode is carried in a distal portion of ceramic cutting member for RF ablation of tissue when the sleeve and cutting member are is a stationary position. In methods of use, (i) the ceramic member can be engaged against bone and then rotated at high speed to cut bone tissue, and (ii) the ceramic member can be held in a stationary (non-rotating) position to engage tissue and RF energy can be delivered to the electrode to create a plasma that ablates tissue.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 25, 2019
    Assignee: RELIGN Corporation
    Inventors: Aaron Germain, Kyle Klein, Michael D. Walker, Ben Poser
  • Patent number: 10292761
    Abstract: A medical device includes a sheath extending from a proximal end to a distal end and having a lumen extending therethrough and an end-effector disposed at the distal end of the sheath including a first resection loop configured to resect tissue and a secondary tool including one of a second resection loop and a tissue-vaporizing structure mounted distally to the first resection loop.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 21, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Kenneth J. Daignault, Kevin Newell, Ronald Ciulla
  • Patent number: 10278721
    Abstract: In various embodiments, a surgical instrument is provided that may comprise an end effector for performing a surgical procedure on tissue, for example. The end effector may comprise a pair of jaws, a closure beam, and a cutting member. The closure beam and the cutting member may be releasably coupled together by an interlocking member such that movement of the cutting member may cause the closure beam to also move relative to the jaws and cause the jaws to close and grip tissue, for example. The interlocking member may then unlock, allowing the cutting member to move through the gripped tissue and relative to the closure beam. Additionally, the cutting member and closure beam may be operated by a single trigger, which may be configured to provide haptic feedback to a user at various stages. Further, the jaws may be electrically energized to deliver energy and/or seal the gripped tissue.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: May 7, 2019
    Assignee: Ethicon LLC
    Inventors: Timothy G. Dietz, Mary E. Mootoo, David A. Witt, Zhifan F. Huang
  • Patent number: 10271892
    Abstract: An electrosurgical system for the treatment of tissue includes an electrosurgical instrument, a source for supplying ionizable gas to said electrosurgical instrument, an electrosurgical generator for supplying high frequency energy to the electrosurgical instrument, and a switch mechanism. The electrosurgical instrument includes one or more conduits and one or more electrodes connected to the electrosurgical generator. The electrosurgical system is movable between at least a first and a second arrangement. The first arrangement is such that one electrode produces a stream of ionized gas exiting one of the conduits, the ionizable gas being capable of the removal of tissue. The second arrangement is such that ionized gas is produced such that it is capable of the coagulation of tissue. The switch mechanism causes the electrosurgical instrument to move between the first and second arrangements.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: April 30, 2019
    Assignee: GYRUS MEDICAL LIMITED
    Inventors: Marno Nagtegaal, Wayne Williams, Robert Edward Taylor
  • Patent number: 10194977
    Abstract: An electrosurgical system includes an electrosurgical generator and an electrosurgical instrument with opposing first and second jaw members movable relative to one another between open and closed positions. The first and second jaw member include, respectively, a cutting electrode and at least a first sealing electrode separated therefrom by an insulating member, and at least a second sealing electrode. The generator includes an energy source for producing at least a cutting RF waveform, first, second and third output connections connected to the cutting electrode, first sealing electrode and second sealing electrode, respectively, and a switching circuit rapidly alternating between a first condition to direct the cutting RF waveform between the first and second output connections and hence the cutting and first sealing electrodes, and a second condition to direct the cutting RF waveform between the first and third output connections, and hence the cutting and second sealing electrodes.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: February 5, 2019
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Teo Heng Jimmy Yang
  • Patent number: 10182861
    Abstract: The disclosure describes an electrosurgical device comprising: forceps including: a first and a second working arm; a blade; wherein the device is switchable between: (A) a first configuration where the first and second working arms move towards each other to grasp tissue therebetween; (B) a second configuration where the first and second working arms are secured together to prevent movement of the first and second working arm towards each other; and (C) a third configuration where the first and second working arms are secured together and are prevented from moving towards each other, and the blade is substantially flush with or extends beyond a distal end of the first and second working arms; and wherein the device delivers a bipolar current, and prevents current from flowing from the blade when in the first configuration and the second configuration; and delivers current through the blade when in the third configuration.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: January 22, 2019
    Assignee: GYRUS ACMI, INC.
    Inventors: Kester J Batchelor, Richard J. Curtis, Ryan J. Windgassen
  • Patent number: 10143511
    Abstract: A living tissue to be treated is brought into contact with a first high-frequency electrode having high thermal conductivity. A substrate on which an electric resistance pattern is formed is longer than the first electrode. The substrate includes an end portion projected from the first high-frequency electrode. A first lead connection portion electrically connected to the electric resistance pattern is formed on the projected end portion. The substrate is pasted to the first electrode by use of a high-thermal-conductivity heat-resistant adhesive sheet. A lead line for applying power to the electric resistance pattern is arranged in the first lead connection portion where it extends in the longitudinal direction of the first electrode and on the side close to the first electrode.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 4, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Shinji Yasunaga
  • Patent number: 10130415
    Abstract: An electrode array supports multiple electrodes and energizes them so that adjacent electrodes do not have the same polarity. In one embodiment, the electrodes are held about a circumference outside and surrounding a tumor and opposed electrodes are energized in a round robin fashion to promote current flow through the center of the tumor from a variety of angles.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 20, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: John G. Webster, Dieter Haemmerich, James Arthur Will, David Mahvi, Ann O'Rourke, David James Schutt
  • Patent number: 10098691
    Abstract: A surgical instrument configured to deliver electrical energy to the tissue of a patient is disclosed. The surgical instrument comprises a frame, a first electrode, a second electrode, and a guard movable between a first position and a second position. The surgical instrument further comprises a spring positioned intermediate the guard and the frame. The spring is configured to bias the guard into the first position. When the guard is in the first position, a distal end of the guard is positioned at least flush with distal ends of the first electrode and the second electrode, which prevents current from arcing between the first electrode and the second electrode. When the guard is in the second position, the distal end of the guard is in contact with the tissue, which prevents current from arcing between the first electrode and the second electrode without passing through the tissue.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: October 16, 2018
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary L. Long, David N. Plescia
  • Patent number: 10085796
    Abstract: A bipolar electrosurgical device includes a handle and an elongated end effector coupled to the handle. The end effector includes an elongated, insulating body having first and second electrodes disposed thereon. The first and second electrodes are separated at the distal end of the insulating body, and a cavity formed in the distal end of the effector is positioned between the first and second electrodes. A fluid-delivery tube is positioned on the body to deliver a conductive fluid to the distal end, adjacent the cavity. During use of the electrosurgical device, delivery of the conductive fluid facilitates formation of an electrical coupling between the electrodes via the tissue being treated.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 2, 2018
    Assignee: Medtronic Advanced Energy LLC
    Inventor: Vaclav O. Podany
  • Patent number: 10052068
    Abstract: An apparatus is provided having a proximal end, a distal end, and an outer surface. The apparatus comprises a handle portion located near the proximal end of the apparatus, a supporting arm attached to the proximal end of the apparatus, the supporting arm having a tracking marker, a flexible tip portion located at the distal end of the apparatus, and a plurality of sensors located on the outer surface of the apparatus. The plurality of sensors each provides a signal representing information that is useable for determining deformation of the flexible tip portion. The apparatus may be either a sheath for covering a medical tool or the apparatus may be a medical tool.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 21, 2018
    Assignee: Synaptive Medical (Barbados), Inc.
    Inventors: Cameron Piron, Josh Richmond, Gal Sela
  • Patent number: 10022140
    Abstract: A medical device includes an elongated sleeve having a longitudinal axis, a proximal end and a distal end. A cutting member having sharp edges formed from a wear-resistant ceramic material is carried at the distal end of the elongated sleeve. A motor drive is coupled to the proximal end of the elongated sleeve to rotate the sleeve at cutting member at high speed to cut bone and other hard tissue. An electrode is carried in a surface portion of ceramic cutting member for cautery or radiofrequency ablation of tissue when the sleeve and cutting member are is a stationary position.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 17, 2018
    Assignee: RELIGN Corporation
    Inventors: Aaron Germain, Kyle Klein, Michael D. Walker, Salvatore G. Mangano
  • Patent number: 10010367
    Abstract: A steerable electrosurgical electrode is provided. The steerable electrosurgical electrode comprises a handle, a control element, a first tube, a second tube, a third tube, an electrode and an electrical transmission unit. The handle has a flat area therein, the control element has a plurality of positioning planes and pivotally connects to the handle such that one of the positioning planes rotatably abuts against the flat area, the first tube is positioned inside the second tube and pivotally connected to the control element, the third tube is connected to the second and the first tubes through a first and a second links, respectively, and the electrode is configured at the right end of the third tube. A user may manipulate the control element such that it abuts against the flat area at different positioning planes, to move the first tube inside the second tube, which in turns rotates the third tube and the electrode.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 3, 2018
    Assignee: COREBIO TECHNOLOGIES CO., LTD.
    Inventors: Chih-Hao Chien, Chih-Hung Li
  • Patent number: 9993292
    Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 12, 2018
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: John Adams, Thomas G. Goff, Doug Hakala
  • Patent number: 9974600
    Abstract: A bipolar electrosurgical instrument is provided. The bipolar electrosurgical instrument includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another. A first conductive lead is adapted to connect to a first electrical potential and a second conductive lead is adapted to connect to a second electrical potential. One of the first and second conductive leads extends through the pivot to connect to a respective jaw member.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 22, 2018
    Assignee: COVIDIEN LP
    Inventors: Jeffrey M. Roy, Mark J. Huseman, Ryan C. Artale, Roy Goodwin, David Galbraith
  • Patent number: 9962221
    Abstract: A bipolar forceps includes a mechanical forceps including first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot. A disposable housing is configured to releasably couple to at least one of the shafts and an electrode assembly is associated with the disposable housing. The electrode assembly includes electrodes releasably coupleable to the jaw members. At least one of the electrodes includes a knife channel configured to receive a knife blade therethrough to cut tissue grasped between the jaw members. A switch is configured to initiate delivery of electrosurgical energy from the source of electrosurgical energy to the electrodes. An actuation mechanism is configured to selectively advance the knife blade through the knife channel to cut tissue.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 8, 2018
    Assignee: COVIDIEN LP
    Inventors: Weng-Kai K. Lee, Scott N. Lacosta, Kelley D. Goodman, Keir Hart, Duane E. Kerr, Geneva Ladtkow, Kenneth E. Netzel, Jeffrey R. Townsend, Raghavendra L. Bhandari, Peixiong Yi
  • Patent number: 9931160
    Abstract: A device for morcellating tissue within a body cavity of a patient comprises a stationary tube (8) having a distal end portion, and a bipolar electrosurgical electrode assembly (13) located at the distal end of the tube. The electrosurgical electrode assembly (13) comprises first and second electrodes (14, 16) separated by an insulation member (15). When an electrosurgical cutting voltage is applied to the electrode assembly (13), and relative movement is initiated between the tube (8) and the tissue, a slug of severed tissue is formed within the tube such that it can be removed from the body cavity of the patient. The bipolar electrosurgical assembly (13) has a first circumferential region (A) and a second circumferential region (B), the first circumferential region (A) being longer than the second circumferential region (B).
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 3, 2018
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Andrew Edward Jenkins
  • Patent number: 9918730
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: March 20, 2018
    Assignee: Ethicon LLC
    Inventors: Gregory A. Trees, Chad P. Boudreaux, Matthew C. Miller, Mark A. Davison, David C. Yates, John A. Hibner
  • Patent number: 9913653
    Abstract: A morcellator includes a housing, an elongated tube extending distally from the housing, and first and second electrodes. A distal end of the elongated tube is configured to cut tissue. The first electrode extends from the housing to the distal end of the elongated tube and is disposed around at least a portion of the distal end of the elongated tube. The second electrode extends distally beyond the first electrode. Another morcellator includes a housing, an elongated tube extending distally from the housing, and an oscillating mechanism. A distal end of the elongated tube includes opposing blade sections and at least one blunt section. The opposing blade sections are configured to cut tissue. The oscillating mechanism is configured to drive oscillation of the elongated tube to cut tissue with the blade sections.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 13, 2018
    Assignee: Covidien LP
    Inventors: Joe D. Sartor, Arlen K. Ward
  • Patent number: 9808259
    Abstract: A clip-over disposable assembly includes a switch assembly and a disposable body. The disposable body includes a first disposable member, a second disposable member including first and second wall portions, and a third disposable member. The first wall portion defines a first aperture therethrough and a first cavity configured to receive therein a first portion of the switch assembly. The third disposable member includes a third wall portion, wherein a body of the second disposable member and the third wall portion define an opening configured to allow a shaft of a hemostat-style surgical instrument to pass therethrough. The second wall portion and the third wall portion cooperatively define a chamber in communication with the opening and configured to receive therein at least a portion of the shaft of the hemostat-style surgical instrument, wherein the at least a portion of the shaft is received in the chamber from an off-axis position.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 7, 2017
    Assignee: COVIDIEN LP
    Inventor: John R. Twomey
  • Patent number: 9788887
    Abstract: An electrosurgical device that has a head having a face. A handle connectable to an RF generator. The device has a plurality of teeth extending from the face. At least one of the plurality of teeth as a first electrical charge. A second of the plurality of teeth has a second electrical charge.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: October 17, 2017
    Inventors: Alan G Ellman, Meindert Stek, John Pikramenos, Scott Goldsmith, Paul Buhrke, Spencer Ellman, Ellman Ian
  • Patent number: 9775666
    Abstract: A medical instrument includes a handpiece, an electromechanical transducer disposed in the handpiece, and an electrical circuit disposed at least partially in the handpiece for supplying alternating electrical current of a predetermined frequency to the transducer. A probe is operatively connected to the transducer for transmitting vibrations generated by the transducer to an operative site in a patient. A switching device is mounted to the handpiece and is operatively connected to the circuit and the transducer for enabling the supply of power to the transducer during a motion of the probe in a preselected direction relative to the handpiece and for disabling the supply of power to the transducer upon a termination of motion of the probe in the preselected direction.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: October 3, 2017
    Assignee: Misonix, Incorporated
    Inventors: Ronald R. Manna, Scott Isola, Theodore A. D. Novak
  • Patent number: 9750519
    Abstract: A surgical instrument includes a shaft defining a longitudinal axis therethrough and having an end effector assembly disposed at a distal end thereof. The shaft includes first and second shaft components that are releasably engageable with one another. A drive sleeve is disposed within the shaft and is longitudinally translatable relative to the shaft to transition the end effector assembly between a first state and a second state. The drive sleeve includes first and second drive sleeve components that are releasably engageable with one another. A coupling mechanism includes one or more shaft cantilever springs configured to releasably engage the first and second shaft components to one another and one or more drive sleeve cantilever springs configured to releasably engage the first and second drive sleeve components to one another.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 5, 2017
    Assignee: COVIDIEN LP
    Inventors: David M. Garrison, Edward M. Chojin, Duane E. Kerr, Peter M. Mueller, Allan J. Evans, James D. Allen, IV
  • Patent number: 9737358
    Abstract: In various embodiments, a surgical instrument is provided that may comprise an end effector for performing a surgical procedure on tissue, for example. The end effector may comprise at least one energy delivery surface and heat dissipation means for dissipating heat from at least a portion of the end effector. For example, in at least one embodiment, the end effector may comprise a first jaw, a second jaw, and a cutting member. The cutting member may comprise a cutting surface and a body, which may define a cavity and at least one opening communicating with the cavity. A fluid may be moved through the cavity to and/or from the opening(s). Additionally, in at least one embodiment, a surgical instrument's end effector may comprise a first jaw, a second jaw, a cutting member, and at least one heat pipe. Various other heat dissipation means are also disclosed.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: August 22, 2017
    Assignee: Ethicon LLC
    Inventors: Andrew T. Beckman, Bradley E. White, Cory G. Kimball, John F. Cummings, Al Mirel, Christopher J. Schall, Jeffrey L. Aldridge, Timothy G. Dietz, David A. Witt, Mary E. Mootoo, Zhifan F. Huang, Raymond M. Banks, Tamara Widenhouse, Frederick E. Shelton, IV, Jason L. Harris, Jeffrey S. Swayze, Prasanna Malaviya, Gregory W. Johnson, Paul Guerra
  • Patent number: 9730715
    Abstract: A guide wire, for use, for example, in guiding an elongated catheter through an artery or vein of a mammalian body having a stenosis and/or an occlusion therein, includes an elongated conductor having a longitudinal dimension, a proximal end and a distal end. The guide wire further includes an insulator overlying the elongated conductor. The insulator exposes a portion of the longitudinal dimension of the elongated conductor to form an electrode. The elongated conductor is arranged to be connected to a source of high voltage pulses to cause electrical arcs at the electrode that in turn form steam bubbles and shock waves to break the stenosis and/or open the occlusion and permit the guide wire to pass there through. Other embodiments are directed to a system including the guide wire and a method of using the guide wire.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: August 15, 2017
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventor: John M. Adams
  • Patent number: 9724154
    Abstract: Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. An insert disposed within the electrode has protrusions that mate with orifices in the shell of the electrode. Each protrusion has a port communicating with at least one interior lumen in the insert and a sensor is disposed in each port. A support seals the proximal end of the electrode and engages the insert. The plurality of sensors may be used to measure electrical and thermal characteristics surrounding the electrode and may help assess contact between the electrode and tissue and/or determine movement of the electrode during ablation.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: August 8, 2017
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Jeffrey Schultz, Maria J. Duarte, Daniele Ghidoli, Kelvin Chuu, Meir Bar-Tal, Jeffrey Clark, Avri Hazan, Abraham Berger
  • Patent number: 9724152
    Abstract: The invention relates to an electrode arrangement for an electrosurgical gripping instrument with an electrode, a heating element and a resilient insulator arranged between the electrode and the heating element to insulate them from one another, wherein the insulator is soft relative to bending. The invention further relates to an electrosurgical gripping instrument with an electrode arrangement according to the invention.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 8, 2017
    Assignee: OLYMPUS WINTER & IBE GMBH
    Inventors: Andreas Hörlle, Hanno Winter, Adrian Schulze
  • Patent number: 9592072
    Abstract: In an ultrasonic probe, an insulation layer portion is formed on an outer surface of a probe main body portion. A first electrode portion provided on an outer surface of the insulation layer portion so that at least part of the first electrode portion is exposed to an outside in a treatment section, and at least part of a second electrode portion is exposed to the outside in the treatment section. The second electrode portion is electrically insulated from the first electrode portion by the insulation layer portion. The probe main body portion vibrates integrally with the insulation layer portion, the first electrode portion and the second electrode portion.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: March 14, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsunetaka Akagane
  • Patent number: 9592090
    Abstract: A bipolar electrosurgical device includes a handle and an elongated end effector coupled to the handle. The end effector includes an elongated, insulating body having first and second electrodes disposed thereon. The first and second electrodes are separated at the distal end of the insulating body, and a cavity formed in the distal end of the effector is positioned between the first and second electrodes. A fluid-delivery tube is positioned on the body to deliver a conductive fluid to the distal end, adjacent the cavity. During use of the electrosurgical device, delivery of the conductive fluid facilitates formation of an electrical coupling between the electrodes via the tissue being treated.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 14, 2017
    Assignee: Medtronic Advanced Energy LLC
    Inventor: Vaclav O. Podany