Bipolar Electrodes Patents (Class 606/48)
  • Patent number: 11172981
    Abstract: In a treatment system, an energy treatment instrument includes a pair of grasping pieces closing with respect to each other. An energy output source outputs electric energy to the energy treatment instrument, thereby applying treatment energy to a treatment target grasped between the grasping pieces. A processor creates an optical flow of the treatment target observed by an observation element, and switches an actuation state of the energy treatment instrument between a first mode for treating the treatment target and a second mode for treating the treatment target that is different from the first mode, based on the optical flow.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: November 16, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsuyoshi Hayashida, Satomi Sakao
  • Patent number: 11172982
    Abstract: An endoscopic vessel harvester cuts and cauterizes side branches from a target vessel using a cutter member that extends at a distal end of an insertion member. The cutter member has a plate defining a slit for receiving a side branch. A cutting electrode is disposed at a base of the slit and a pair of grounding electrodes are each mounted to an outer surface of the plate on opposite sides of the slit. Each grounding electrode has a raised longitudinal ridge adjoining a portion of the slit including the base of the slit and has a spot cautery wing extending laterally away from the slit with a surface configured to engage a surface of the tunnel. The longitudinal ridges each have an upright jamb surface configured to contact the side branch remotely from the cutting electrode so that it is unnecessary to make a grounding contact on the tunnel.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 16, 2021
    Assignee: TERUMO CARDIOVASCULAR SYSTEMS CORPORATION
    Inventors: Tatsunori Fujii, Safi Siddiqui, Randal J. Kadykowski
  • Patent number: 11166757
    Abstract: An ultrapolar electrosurgery blade includes lop and bottom thin elongated conductive members in vertical, alignment and spaced apart, from one another along their lengths, a non-conductive coating covering both the top and bottom thin elongated conductive members and the space located between them to create opposing non-conductive sides of the blade with conductive cutting and ends and conductive non-cutting ends exposed, and both return and active contact layers located on each of the opposing non-conductive sides of the blade. An ultrapolar electrosurgery blade assembly having argon beam capability further includes a non-conductive tube member having a slot positioned over the top of the ultrapolar electrosurgery blade and a conductive hollow tubular member contained within at least a portion of the non-conductive tube member.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 9, 2021
    Assignee: I.C. Medical, Inc.
    Inventor: Ioan Cosmescu
  • Patent number: 11109907
    Abstract: An ultrapolar electrosurgery blade and an ultrapolar electrosurgery blade assembly. The ultrapolar electrosurgery blade includes top and bottom thin elongated conductive members in vertical alignment and spaced apart from one another along their lengths where each of the top and bottom thin elongated conductive members includes opposing planar sides, a sharp cutting end, and an opposite non-cutting end, and a non-conductive coating covering both opposing sides of the top and bottom thin elongated conductive members and the space located between them where the cutting ends of the elongated conductive members and their opposite non-cutting ends remain exposed.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: September 7, 2021
    Assignee: I.C. Medical, Inc.
    Inventor: Ioan Cosmescu
  • Patent number: 11114195
    Abstract: A surgical instrument includes an end effector and a marking assembly. The end effector includes a first jaw; a second jaw movable relative to the first jaw to grasp tissue therebetween; and a tissue-treatment mechanism configured to apply a tissue treatment to tissue grasped between the first jaw and the second jaw. The marking assembly configured to apply a distinct marking to the tissue unique to each tissue treatment application, wherein the distinct marking distinguishes the tissue treatment application from other tissue treatment applications.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 7, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser
  • Patent number: 11090082
    Abstract: A colpotomy system includes a colpotomy cup that extends to a distal surface and defines a longitudinal axis. The colpotomy system further includes a cutter operably coupled to the colpotomy cup and configured to travel along an arcuate path defined about the distal surface of the colpotomy cup. The cutter actuatable to separate a uterus from a vagina as the cutter rotates about the longitudinal axis of the colpotomy cup.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 17, 2021
    Assignee: COVIDIEN LP
    Inventors: Jason G. Weihe, James D. Allen, IV, Ansel Dow, Thomas E. Drochner, Stuart R. Hart, Michael B. Lyons, Scott J. Prior, John R. Twomey
  • Patent number: 11076907
    Abstract: A forceps includes an end effector assembly having first and second jaw members. 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 an opposed jaw surface having an electrically-conductive tissue sealing plate disposed thereon. The electrically-conductive tissue sealing plate includes a first portion configured to conduct energy through tissue grasped between the jaw members to create a main tissue seal and a second portion including a plurality of spaced-apart fingers extending from the first portion. The second portion is configured to conduct energy through tissue grasped between the jaw members to create an auxiliary tissue seal extending from the main tissue seal for reducing stress concentrations adjacent the main tissue seal.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: August 3, 2021
    Assignee: COVIDIEN LP
    Inventors: Barbara R. Tyrrell, Duane E. Kerr
  • Patent number: 11071579
    Abstract: An electrosurgical medical device includes an elongate shaft defining a proximal end, a distal end, and a lumen there through. A fluid conduit is disposed within the lumen. A first electrode is at least partially disposed within the lumen and extends distally from the distal end of the shaft, the first electrode is sized and configured to cut tissue with radiofrequency energy. A second electrode is arranged in a bipolar configuration with the first electrode, the second electrode is coupled to ground and configured to receive radiofrequency energy from the first electrode. The second electrode is defined by at least a portion the shaft and extending a distance away from the distal end of the shaft.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 27, 2021
    Assignee: Medtronic Advanced Energy LLC
    Inventor: Vini Podany
  • Patent number: 11058479
    Abstract: An apparatus includes an interface assembly and a shaft assembly. The interface assembly is for use with a robotic system and includes a first drive assembly. The first drive assembly includes a first slot having a distal recess and a transverse recess. The shaft assembly is removably couplable with the interface assembly and includes an end effector and a first coupling feature. The first drive assembly of the interface assembly actuates the end effector of the shaft assembly. The first coupling feature is couplable with the first slot of the first drive assembly to longitudinally fix the shaft assembly relative to the interface assembly.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 13, 2021
    Assignee: Cilag GmbH International
    Inventors: Shailendra K. Parihar, Barry C. Worrell
  • Patent number: 11045175
    Abstract: Surgical devices for use with robotic surgical systems and their methods of use are described. In some embodiments, the surgical device may include an actuator that interfaces with an end effector of an arm of a robotic surgical system. An output from the end effector may actuate the actuator to perform an operation of the surgical device. In some embodiments, the surgical device may include a retainer that retains at least a portion of the surgical device on a distal portion of the arm of the robotic surgical system during actuation. In other embodiments, the surgical device may include a portion that is engaged by a second robotic surgical arm to hold at least a portion of the surgical device stationary relative to the robotic surgical arm engaged with the actuator of the surgical device.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: June 29, 2021
    Assignee: C.R. Bard, Inc.
    Inventors: Donald A. Coelho, Jr., John Conidi, Peter Maughan Crapo, Augustus Felix, Ian K. Parker, Devang Vijay Shah
  • Patent number: 10973567
    Abstract: An electrosurgical forceps includes first and second shaft members pivotably coupled to one another via a pivot member such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A knife is translatable between retracted and extended positions. A knife deployment mechanism is operably coupled to the first shaft member and includes at least one trigger and at least one linkage coupling the at least one trigger with the knife such that pivoting of the at least one trigger relative to the first shaft member translates the knife between the retracted and extended positions. A knife lockout biased towards a locked position inhibits distal translation of the knife. The knife lockout is movable from the locked position to an unlocked position upon approximation of the jaw members to permit distal translation of the knife.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: April 13, 2021
    Assignee: Covidien LP
    Inventors: Grant T. Sims, Benjamin R. Arts, Kelley D. Goodman, David Michael Keffeler, Craig V. Krastins, Jennifer E. Lee, Robert F. McCullough, Jr., Daniel W. Mercier
  • Patent number: 10945782
    Abstract: An apparatus comprises a first jaw, a second jaw, a first handle, and a second handle. The second jaw is pivotally coupled with the first jaw. The first jaw and the second jaw are configured to grasp tissue. The jaws provide offset electrode surfaces that are operable to deliver bipolar RF energy to tissue grasped between the jaws. The apparatus is further operable to sever tissue. A lockout feature selectively prevents tissue severing, based on an energization state of the jaws.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: March 16, 2021
    Assignee: Ethicon LLC
    Inventors: Chester O. Baxter, III, David C. Yates, Katherine J. Schmid, Taylor W. Aronhalt, Jeffrey S. Swayze, Jeffrey D. Messerly, Michael S. Cropper, Jerome R. Morgan, Richard W. Timm, Frederick E. Shelton, IV
  • Patent number: 10945778
    Abstract: A surgical instrument includes a body, a shaft assembly rotatable relative to the body, and an end effector at a distal end of the shaft assembly and having an RF electrode operable to seal tissue with RF energy. An electrical contact assembly is arranged proximally of the end effector and is configured to electrically couple the RF electrode with an RF energy source. The electrical contact assembly includes a first electrical contact secured to the body and a second electrical contact secured to the shaft assembly. The first contact is configured to electrically couple with the RF energy source. The second contact is electrically coupled with the RF electrode and the first contact, and is configured to rotate with the shaft assembly relative to the first contact. The first and second electrical contacts are configured to remain electrically coupled throughout rotation of the shaft assembly relative to the body.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: March 16, 2021
    Assignee: Ethicon LLC
    Inventors: William B. Weisenburgh, II, Catherine A. Corbett, Jason R. Lesko, Craig T. Davis
  • Patent number: 10945749
    Abstract: A manipulator includes: an elongated body portion that can be inserted into a body; and an energy treatment mechanism provided at a distal end of the body portion. The energy treatment mechanism is provided with gripping pieces that can grip body tissue and an energy applying part configured to apply energy to the body tissue gripped by the gripping pieces. The body portion is provided with an energy transfer part configured to transfer energy to the energy applying part and a force amplifying mechanism configured to amplify gripping force of the gripping pieces.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: March 16, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Mitsuhiro Hara
  • Patent number: 10905451
    Abstract: A medical device including an elongate member having a proximal end, a distal end, and a lumen extending therebetween. The medical device may further include an end-effector disposed at the distal end of the elongate member. The end-effector may include a plurality of arms pivotally connected to one another, wherein each arm includes a tissue-contacting surface, a first portion of the tissue-contacting surface including a plurality of ridges configured to grasp tissue. Further, the tissue-contacting surface may include a channel oriented substantially parallel to a longitudinal axis of the medical device.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 2, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Gary Kappel, Sean Fleury, Paul Smith, Brandon Zalewski, Laurie Soderbom
  • Patent number: 10898261
    Abstract: Provided is a bipolar electrode probe, which includes a conductive needle, an insulation layer, a conductive sleeve, and an insulation sleeve. The conductive needle has a longitudinal direction and a transverse direction perpendicular to the longitudinal direction. The insulation layer covers the conductive needle and has a first opening. The conductive sleeve covers the insulation layer and has a second opening. The insulation sleeve covers the conductive sleeve. When the bipolar electrode probe is turned on, a longitudinal electric field is formed from a front end of the conductive needle to the conductive sleeve along the longitudinal direction. A transverse electric field is formed from the conductive needle to the conductive sleeve via the first opening and the second opening along the transverse direction.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: January 26, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Meng-Han Tsai, Hui-Hsin Lu, Wei-Che Lin, Ming-Chi Lin, Chi-Ying Lu
  • Patent number: 10881454
    Abstract: A minimally invasive surgical implant-cutting instrument of the bipolar type, operated with direct current, with an instrument head which is located at the distal end of an instrument shank, wherein at least two mutually opposing instrument branches, preferably of the linear type, are arranged on the instrument head and between them define a cutting gap for receiving an electrically conductive implant or implant section between them. The electrodes are formed on the mutually facing longitudinal sides of the branches or these are each equipped with at least one electrode, which electrodes are in turn shaped at their mutually facing longitudinal sides to form a cutting edge in order to effect a quasi-linear or punctiform physical contact engagement with the electrically conductive implant or implant section for an electrical short circuit of the mutually opposing electrodes.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 5, 2021
    Inventors: Sebastian Schostek, Chi-Nghia Ho, Michael Melbert, Marc O. Schurr, Thomas Gottwald
  • Patent number: 10869674
    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: November 6, 2017
    Date of Patent: December 22, 2020
    Assignee: COVIDIEN LP
    Inventor: John R. Twomey
  • Patent number: 10864014
    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: December 8, 2016
    Date of Patent: December 15, 2020
    Assignee: CORDYNAMIX, INC.
    Inventor: Michael D. Laufer
  • Patent number: 10856934
    Abstract: An end effector includes a grasping portion that includes a first jaw member having a first electrode, a second jaw member having a second electrode, a first electrically conductive member located either on the first jaw member or the second jaw member, and a gap setting portion having a second electrically conductive member located at the distal end of either the first jaw member or the second jaw member. The electrically insulative member is sized and configured to engage tissue and the second electrically conductive member sized and configured to define a minimum distance between the first and second electrodes.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: December 8, 2020
    Assignee: ETHICON LLC
    Inventors: Gregory A. Trees, Megan A. Broderick, Frederick E. Shelton, IV, Chad P. Boudreaux, John M. Sarley, David C. Yates
  • Patent number: 10850095
    Abstract: Methods and apparatuses for treating a tissue with an electric treatment by rotating a pattern of electrodes partway through a treatment is disclosed. Also described herein are methods and apparatuses to treat tissue, including treating skin disorders, by selectively de-nucleating epidermal cells without provoking a significant inflammatory response, e.g., without increasing the density of leukocytes in the treated skin, and without affecting the non-cellular components of the dermis.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 1, 2020
    Assignee: Pulse Biosciences, Inc.
    Inventors: Edward Ebbers, David J. Danitz, Richard L. Nuccitelli, Darrin R. Uecker, Cameron D. Hinman, Kevin L. Moss
  • Patent number: 10835316
    Abstract: An emitter assembly can include a proximal shaft, a distal shaft, a shunt that connects the proximal shaft to the distal shaft, and a tip that is connected to a distal end of the distal shaft. An inner conductor can extend through the proximal shaft, the shunt, and the distal shaft and into the tip to provide microwave energy to the tip. An outer conductor can extend into the shunt. The shunt can therefore form an electrical connection between the outer conductor and a proximal ring of electrically conductive material formed on an exterior surface of the distal shaft. Distal shaft can be made of a thermally conductive but electrically insulated material to facilitate transfer of heat from the distal shaft to the proximal shaft.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 17, 2020
    Assignee: Endocare, Inc.
    Inventors: Chet M. Crump, Kent Moore, Mark Sedlacek, Todd H. Turnlund
  • Patent number: 10820938
    Abstract: A tissue fusion instrument having electrodes that are only connected in a punctiform manner to their electrode carrier such that they are electrically conducting and thus, heat-conducting.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: November 3, 2020
    Assignee: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Klaus Fischer, Achim Brodbeck, Daniel Schaeller
  • 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: 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: 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: 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