With Forceps Or Tweezers Patents (Class 606/51)
  • Patent number: 11051874
    Abstract: A forceps-type electrosurgical device is disclosed comprising, a fixed elongate body and a pair of moveable tips, arranged for engaging tissue in use, and extending from a forward end of the body. The tips are relatively moveable between a first position in which the tips are spaced apart and a second position in which the tips are brought together. The body further comprising an actuation member moveable relative to the body and connected to the tips such that a user may move the actuation member to result in movement of the tips between the first and second positions. The device may further comprise a suction port proximal to the tips.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: July 6, 2021
    Inventor: Gerard Brooke
  • Patent number: 11039877
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a latch assembly. The end effector includes a first jaw, a second jaw pivotably coupled with the first jaw, a knife, and an electrode assembly. The handle assembly includes a housing associated with the first jaw, and an arm associated with the second jaw. The arm can pivot the second jaw between an open position and a closed position. The latch assembly can transition between an unlatched configuration and a latched configuration. The latch assembly can prevent the arm from pivoting the second jaw from the closed position toward the open position in the latched configuration. The latch assembly can allow the arm to pivot the second jaw from the closed position toward the open position in the unlatched configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 22, 2021
    Assignee: Cliag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11040189
    Abstract: An electrode assembly may include an electrode support made of a first electrically insulative material and an electrode on the electrode support, the electrode having a working surface extending generally transverse to a thickness of the electrode. The electrode assembly may further include an insulative spacer retained in the electrode and made of a second electrically insulative material. The second electrically insulative material may be different from the first electrically insulative material. The insulative spacer of the electrode assembly may have a body portion extending into the thickness of the electrode, and a head portion protruding beyond the working surface of the electrode.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 22, 2021
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Dennis H. Vaders, Adam Ross
  • Patent number: 11033320
    Abstract: A jaw assembly includes an electrically-conductive tissue-engaging structure, a jaw member including a support base, and a non-electrically conductive member including a first portion configured to engage the electrically-conductive tissue-engaging structure and a second portion configured to engage the support base of the jaw member. The non-electrically conductive member adapted to electrically isolate the electrically-conductive tissue-engaging structure from the jaw member. The electrically-conductive tissue-engaging structure and the non-electrically conductive member cooperatively define a longitudinally-oriented knife channel therethrough.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: June 15, 2021
    Assignee: COVIDIEN LP
    Inventor: David M. Garrison
  • Patent number: 11020170
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a knife drive assembly. The end effector includes a pair of jaws, a knife, and an RF electrode assembly. The knife actuates between a pre-fired position and a fired position. An arm of the handle assembly is configured to pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, a rotary assembly, and an output assembly. The input assembly travels a first proximal distance to rotate the rotary assembly. The rotary assembly rotates in response to travel of the input assembly along the first proximal distance to drive the output assembly a first distal distance to thereby actuate the knife from the pre-fired position toward the fired position. The first distal distance is greater than the first proximal distance.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020169
    Abstract: A surgical instrument includes an end effector, a handle assembly, a knife drive assembly, and a lockout assembly. The end effector includes a pair of jaws, a knife, and an RF electrode. The handle assembly includes a housing associated with the first jaw, and an arm associated with the second jaw. The arm is pivotably coupled with the housing and pivots the second jaw between the open position and the closed position. The knife drive assembly includes a trigger slidably coupled with the housing, an actuating assembly, and a return assembly. The actuation assembly converts proximal translation of the trigger into distal actuation of the knife. The return assembly automatically actuates the knife from the fired position to the pre-fired position in response to the trigger reaching a predetermined proximal position. The lockout assembly prevents activation of the electrode and distal actuation of the knife while in the locked configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: June 1, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11020171
    Abstract: Electrosurgical instruments with passive articulation and thermal insulation are described herein. Such instruments can provide the advantages associated with passive articulation while protecting tissue and other structures from unintentional thermal damage when an end effector is pressed thereagainst to effect articulation while at an elevated temperature due to use. In one embodiment, such an instrument can include a distal end effector with jaws to clamp tissue, a proximal actuating portion, an energy delivery surface that contacts grasped tissue, and a passive articulating portion disposed between the end effector and the actuating portion. The articulating portion can be configured to selectively permit movement of the end effector relative to the actuating portion in response to external forces acting on the end effector. Further, an outward-facing surface of at least one of the first and second jaws can be covered in a thermally insulating material.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: June 1, 2021
    Assignee: Ethicon LLC
    Inventor: Barry Worrell
  • Patent number: 11013528
    Abstract: Surgical systems and methods are provided for controlling actuation and movement of various surgical devices.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 25, 2021
    Assignee: Ethicon LLC
    Inventors: Joseph Isosaki, Andrew Carroll, David Alexander Monroe, Jeffery Kirk, David C. Yates, Frederick E. Shelton, IV, Kevin L. Houser, Jason L. Harris, Chester O. Baxter, III
  • Patent number: 11007003
    Abstract: A surgical instrument includes a housing, a shaft extending distally from the housing, an end effector assembly disposed at a distal end of the shaft, a knife slidably disposed within the shaft, a movable handle operably coupled to the housing, a trigger operably coupled to the housing, a drive assembly operably coupled between the movable handle and the end effector assembly such that movement of the movable handle manipulates the end effector assembly, and a linkage operably coupled between the trigger and the knife such that movement of the trigger deploys the knife. In an initial position of the movable handle, a portion of a drive housing of the drive assembly intersects a path of movement of the linkage to inhibit movement of the linkage, thereby inhibiting actuation of the trigger.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 18, 2021
    Assignee: COVIDIEN LP
    Inventors: James D. Allen, IV, Craig V. Krastins, Jessica E. C. Olson, Stephen J. Stamm, Victor K. Appel, Purvishkumar H. Soni, Ross Tichota
  • Patent number: 11007002
    Abstract: A jaw member for an electrosurgical instrument is manufactured by providing a jaw housing (1) having a longitudinal jaw section (2), and an electrically conductive plate (11) including one or more passages (14) therein. The electrically conductive plate is disposed on the jaw section of the jaw housing, and placed into a mold (15). A flowable insulating material (18) is injected into the mold to secure the electrically conductive plate to the jaw housing, such that the flowable material (18) flows through the one or more passages (14) to form one or more stop members (21) that project a predetermined distance from the electrically conductive plate.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: May 18, 2021
    Assignee: GYRUS MEDICAL LIMITED
    Inventors: Daniel John Thomas, Lewis Meurig Jones
  • Patent number: 11000331
    Abstract: A cover for an electrosurgical instrument having a wrist structure and an end effector is provided. The cover includes a hollow elongated structure, which includes a tip cover portion and a base cover portion integrally connected to the tip cover portion. The tip cover portion has a distal end with an opening therethrough sized to receive the end effector of the electrosurgical instrument and is composed of a first, electrically insulative material having a flexibility sufficient to allow the end effector to be manipulated while the end effector is received in the opening. The base cover portion is composed of a second material having a higher tear strength than the first material. The tip cover portion and the base cover portion overlap at an overlap region configured to receive the wrist structure of the electrosurgical instrument when the end effector is received in the opening.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 11, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Justin Krom, Kenneth L. Gong, Richard D. Gresham, Scott E. Manzo, Joseph P. Orban, III
  • Patent number: 10987158
    Abstract: A circuit for generating a radio-frequency signal for a surgical device is disclosed. The circuit has a voltage regulator that supplies direct current (DC) voltage, a first MOSFET, a second MOSFET, and a MOSFET driver. The MOSFET driver receives the DC voltage supplied from the voltage regulator and has a local oscillator. The local oscillator switches the first MOSFET and the second MOSFET on and off at a frequency generated by the local oscillator. The circuit further includes a transformer connected to the first and second MOSFETs, having a center tap and a main voltage applied at the center tap, and providing an alternating current (AC) output.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 27, 2021
    Assignee: Covidien AG
    Inventors: Thomas O. Bales, Jr., Matthew A. Palmer
  • Patent number: 10980557
    Abstract: A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: April 20, 2021
    Assignee: COVIDIEN LP
    Inventors: Ryan C. Artale, Thomas W. Meiser, William J. Dickhans, Steven E. Butcher, Dennis W. Butcher
  • Patent number: 10973682
    Abstract: A surgical instrument such as for use in vitreoretinal surgeries is described. The surgical instrument may include a pair of pincers resiliently biased toward an opened configuration and being movable toward each other into a closed configuration to engage a membrane. Each pincer may include a rounded grasping edge. The grasping edges may include a textured surface operable to induce a capillary effect between a membrane and the forceps to promote adhesion therebetween.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 13, 2021
    Assignee: Alcon Inc.
    Inventors: Guido Vezzu, Reto Grueebler
  • Patent number: 10966781
    Abstract: A surgical instrument includes an end effector, a handle assembly, a knife drive assembly, an electrode activation assembly, and a lockout assembly. The end effector includes a first jaw, a second jaw, a knife, and an electrode assembly. The handle assembly includes a housing associated with the first jaw and an arm associated with the second jaw, where the arm is configured to pivot the second jaw between an open position and a closed position. The lockout assembly is may transition between a locked configuration and an unlocked configuration. The lockout assembly may prevent activation of the electrode and prevent actuation of the knife drive assembly while in the locked configuration. The lockout assembly may allow activation of the electrode and allow actuation of the knife drive assembly while in the unlocked configuration.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: April 6, 2021
    Assignee: Ethicon LLC
    Inventor: Chad P. Boudreaux
  • Patent number: 10966742
    Abstract: A medical device can include a working end comprising a jaw mechanism configured to perform a clamping function and a translating cutting mechanism configured to perform a cutting function in response to translating movement of the translating cutting mechanism. The medical device can further include at least two user-actuated input mechanisms, and a computer processor operably coupled to the working end and to the at least two user-actuated control input mechanisms.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: April 6, 2021
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: David J. Rosa, Salvatore J. Brogna
  • Patent number: 10959770
    Abstract: A method of assembling an electrosurgical instrument includes coupling first and second shafts to each other about a pivot. Each of the shafts has an interior side facing the other shaft and an exterior side opposite the interior side. The method also includes disposing a knife blade at least partially through a passageway defined through the pivot from the exterior side of the first shaft and coupling a knife actuation mechanism to the first shaft from the exterior side of the first shaft. The knife actuation mechanism is configured to move the knife blade through the passageway.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 30, 2021
    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: 10952789
    Abstract: A connection mechanism and manufacturing method for a surgical instrument includes an inner shaft member that extends at least partially through an elongated shaft member of the instrument and defines proximal and distal ends and is selectively movable in a longitudinal direction with respect to the elongated shaft member and includes at least one aperture that extends partially along the longitudinal direction and disposed distally from the proximal end. The inner shaft member enables a drive collar member to slide on the inner shaft member and reciprocate along the longitudinal direction. A drive collar stop member slides on the inner shaft member and moves along the longitudinal direction. The drive collar stop member then moves in a direction relative to the longitudinal axis to engage the aperture and limit further longitudinal motion of the drive collar member. An inner shaft stop member limits movement of the inner shaft.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 23, 2021
    Assignee: COVIDIEN LP
    Inventors: Grant T. Sims, Michael B. Lyons
  • Patent number: 10945784
    Abstract: An improved surgical instrument having an end effector mounted on the end of an elongate shaft extending from a handle. The end-effector is capable of several different operations, including grasping, cutting, and sealing and/or coagulating tissue, and one of the operations is controlled by a trigger mechanism contained within the handle. The end effector includes a pair of curved jaw members and a blade assembly having a cutting blade at its distal end. The trigger mechanism is arranged to drive the blade assembly longitudinally within the elongate shaft such that the cutting blade protrudes between jaw members. In order to help trigger mechanism push the blade assembly around the curved jaws, the distal end of the blade has a graduated flexibility such that it can more easily bend to the shape of the jaw members. The distal end of blade may also be provided with a low friction coating.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: March 16, 2021
    Assignee: GYRUS MEDICAL LIMITED
    Inventors: Neill Tomás Brennan, Lewis Meurig Jones
  • Patent number: 10945750
    Abstract: A laparoscopic instrument is placed into the abdomen without the creation of a skin incision. The laparoscopic instrument includes a shaft that does not exceed 1.6 mm in diameter. The shaft has a beveled end and is inserted into an abdomen similar to the placement of a needle, without use of a scalpel. Operating instruments are introduced into the abdomen through the umbilical port using a docking device, and are then docked to the beveled end of the shaft after the shaft is introduced through the abdomen. Multiple types of operating instruments can be placed on the beveled end of the shaft during the surgical procedure. Each operating instrument is docked with a holster during introduction into and withdrawal from the umbilical port and is removed from the holster only when in use. When removed from the holster it is locked to the shaft and cannot be dropped.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: March 16, 2021
    Assignee: University of South Florida
    Inventors: Stuart Hart, Susana Lai-Yuen, Erin Moree, James Doulgeris, Benjamin Taylor Nelson, Grahm Roach, Brandon Kruse
  • Patent number: 10934864
    Abstract: An apparatus for axial locking of a bucket includes a depressed portion formed on an end portion of a male dovetail extending from a bucket and on an outer side of a seating groove of a female dovetail disposed on an outer circumferential surface of a rotor disk, and a locking member disposed in the depressed portion and configured to contact the male dovetail and the seating groove of the female dovetail to prevent the bucket mounted on the rotor disk from being separated in the axial direction.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 2, 2021
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Jong Wook Lee
  • Patent number: 10898259
    Abstract: A surgical instrument includes an end effector, a handle assembly, a trigger assembly, an input driving body, and a coupling body. The end effector includes a pair of jaws, a knife, and an RF electrode assembly. The input driving body drives the knife between the pre-fired position and the fired position when traveling between the first position and the second position. The engagement body of the trigger assembly drives the input driving body from the first position to the second position when the coupling body is in the engaged position. The input driving body returns to the first position when the coupling body is in the disengaged position. The coupling body moves from the engaged position to the disengaged position is response to the input driving body traveling from the second position to the third position such that the input driving body returns to the first position.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 26, 2021
    Assignee: Ethicon LLC
    Inventor: Chad P. Boudreaux
  • Patent number: 10898285
    Abstract: An articulation assembly for a surgical instrument, surgical instrument including the same, and robotic surgical system including a surgical robot and the surgical instrument including the articulation assembly. The articulation assembly includes proximal gear assemblies arranged in diagonally-opposed pairs and distal gear assemblies coupled to the respective proximal gear assemblies and likewise arranged in diagonally-opposed pairs. Each distal gear assembly defines an opposite configuration as its diagonally-opposed distal gear assembly. First and second coupling gears couple the diagonally-opposed pairs of proximal gear assemblies such that an input to one of the proximal gear assemblies of a diagonally-opposed pair provides opposite outputs of the corresponding distal gear assemblies.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 26, 2021
    Assignee: Covidien LP
    Inventor: Kurt J. Anglese
  • Patent number: 10888369
    Abstract: The present disclosure provides a surgical instrument that includes an end effector having a first jaw, a second jaw that is movable relative to the first jaw, and at least one electrode in the first jaw. The surgical instrument also includes a control circuit configured to provide electrosurgical energy to the at least one electrode and a electrical conductor electrically connected between the end effector and the control circuit. The control circuit includes a shaft control segment and an electrosurgical energy control segment. The shaft control segment is configured to provide a control signal for operating the end effector to the end effector through the electrical conductor. The electrosurgical energy control segment is configured to provide the electrosurgical energy to the at least one electrode through the electrical conductor.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 12, 2021
    Assignee: Ethicon LLC
    Inventors: Jeffrey D. Messerly, David C. Yates, Jason L. Harris, Frederick E. Shelton, IV, Mark A. Davison
  • Patent number: 10888387
    Abstract: An articulation assembly for a surgical instrument, surgical instrument including the same, and robotic surgical system including a surgical robot and the surgical instrument including the articulation assembly. The articulation assembly includes lead screw assemblies each including a lead screw and a collar operably engaged about the lead screw such that rotation of the lead screw translates the collar about the lead screw. Articulation cables are operably coupled to the collars of the lead screw assemblies such that proximal movement of one of the collars about the respective lead screw tensions the corresponding articulation cable and such that distal movement of one of the collars about the respective lead screw de-tensions the corresponding articulation cable. Proximal gear assemblies are coupled to the lead screws. Coupling gears couple pairs of the proximal gear assemblies with one another to maintain a pre-tension on the corresponding articulation cables.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 12, 2021
    Assignee: Covidien LP
    Inventor: Kurt J. Anglese
  • Patent number: 10874452
    Abstract: An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes. The instrument is removably connectable to an electrosurgical unit via an electrosurgical connector extending from the instrument and a receptacle on the electrosurgical unit. The electrosurgical instrument is rotatable without disrupting electrical connection to the electrodes of the jaws. One or more of the electrodes is retractable. The electrosurgical unit and instrument optimally seals and/or cuts tissue based on identifying the tissue and monitoring the modification of the tissue by the application of radio frequency energy.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: December 29, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: John Brustad, Zoran Falkenstein, Benjamin Linville-Engler, Matthew Wixey, Gary Johnson, Patrick Elliott
  • Patent number: 10856931
    Abstract: A surgical instrument includes an end effector, a handle assembly, and a knife drive assembly. The end effector includes a first jaw, a second jaw, a knife, and an electrode assembly. The second jaw is pivotably coupled with the first jaw and is operable to move between an open position and a closed position. The knife is configured to actuate between a pre-fired position and a fired position. The electrode assembly is configured to apply RF energy to tissue. The handle assembly includes a housing associated with the first jaw and an arm associated with the second jaw. The arm is configured to pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, an output assembly, and a threaded member rotatably disposed within the housing. The threaded member includes a first threaded portion and a second threaded portion. The first threaded portion is associated with the input assembly and includes a first pitch extending in a first pitch orientation.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: December 8, 2020
    Assignee: Ethicon LLC
    Inventor: Chad P. Boudreaux
  • Patent number: 10856932
    Abstract: Device and method for sub-xiphoid ablation of patient tissue. A sub-xiphoid access clamp has a handle, an elongate neck coupled to the handle and first and second opposing jaws. The first and second opposing jaws have first and second opposing relief segments being generally co-planar and concave with respect to one another to form a void therebetween, and first and second opposing elongate ablation elements positioned along the first and second opposing jaws and distal of the first and second opposing relief segments relative to the handle. The first and second opposing jaws are articulate between a closed position and an open position to admit, at least in part, a second portion of tissue of the patient within the void created by the first and second opposing relief segments while the first portion of tissue is positioned between the first and second ablation elements in the closed position.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: December 8, 2020
    Assignee: Medtronic Inc.
    Inventors: Mark Stewart, Thomas Daigle, David Francischelli, John Liddicoat, Paul Rothstein, Steven F. Bolling
  • Patent number: 10856930
    Abstract: A boot for an electrosurgical instrument has a conductive boot shield substantially enclosed by one or more insulating layers. The boot shield has a flexible conductive medium. The flexible conductive medium has a plurality of conductive components suspended in at least one of a first liquid or a first gel, whereby the boot is configured to bend with a bend radius of about 10 millimeters or less without a loss in conductivity of the boot shield. A related method and system are also provided.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 8, 2020
    Assignee: ENCISION INC.
    Inventors: Gregory Jude Trudel, Michael John Biggs, David Newton, Philip Schreiber
  • Patent number: 10849680
    Abstract: An end effector apparatus for a surgical instrument is disclosed including a housing having a first jaw mounted on a revolute joint and providing a first electrical conduction path between the housing and the first jaw. A second jaw is mounted on a revolute joint within the housing and is insulated from the housing, the jaws each having a manipulating portion and a lever arm. A yoke is received within the housing and mechanically coupled to the lever arms and to a control link and is moveable in response to movements of the control link to cause opening and closing of the jaws, the yoke being electrically insulated from the housing and the first jaw. A second electrical conduction path is provided between the control link and the second jaw. The electrical conduction paths facilitate conduction of an electrocauterization current through tissue grasped between the jaws.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: December 1, 2020
    Assignee: TITAN MEDICAL, INC.
    Inventors: Rene Robert, Jonathan Hess Hills, Timothy Norman Johnson
  • Patent number: 10842552
    Abstract: A surgical device that includes a first support member extending along a longitudinal axis; a bladder located on the first support member; a first sealing member located on the bladder; and a second sealing member located on the bladder. The sealing member is located on one side of the longitudinal axis; and the second sealing member is located on another side of the longitudinal axis. The bladder is inflatable, and inflating the bladder changes a position of the first sealing member, the second sealing member, or both relative to the first support member.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: November 24, 2020
    Assignee: Gyrus Acmi, Inc.
    Inventors: Kester J. Batchelor, Jeffrey Nelson, Huisun Wang
  • Patent number: 10828084
    Abstract: A surgical instrument includes a housing, a shaft extending therefrom, an end effector assembly supported by the shaft, a movable handle, and a drive assembly. The drive assembly includes a translatable drive member for actuating the end effector assembly, and a torsion spring including first and second legs. The first leg is configured to translate through the housing in response to movement of the movable handle relative to the housing. The second leg is configured to translate through the housing in cooperation with the first leg to move the drive member longitudinally when a force acting on the drive member is less than a threshold force, and to remain in fixed position, thereby tensioning the torsion spring and retaining the drive member in fixed position when the force acting on the drive member is equal to or exceeds the threshold force.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 10, 2020
    Assignee: Covidien LP
    Inventors: Craig V. Krastins, James D. Allen, IV, Jessica E. C. Olson, Jason G. Weihe, Purvish Soni
  • Patent number: 10828058
    Abstract: A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a driver configured to drive movement of at least one component of the surgical instrument; a motor powered by the battery assembly and configured to actuate the driver using an output of the motor; and a controller for the motor, configured to perform a limiting operation to the output of the motor when a limiting condition is met, wherein the limiting condition is determined based at least in part on a tissue characteristic.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 10, 2020
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser
  • Patent number: 10799284
    Abstract: An electrosurgical system includes an RF current generator, a handle body, and an end effector in mechanical communication with the handle body. The end effector has a first jaw including a first electrode having a first electrode surface in electrical communication with a first terminal of the generator. The end effector also includes a second jaw including a second electrode having an essentially planar second electrode surface in electrical communication with a second terminal of the generator The first jaw includes at least one feature configured to apply an amount of a compressive force to a tissue compressed between the at least one feature and the second electrode surface that differs from an amount of a compressive force applied to the tissue compressed between the first electrode surface and the second electrode surface when the first jaw is placed in a proximate position to the second jaw.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 13, 2020
    Assignee: Ethicon LLC
    Inventors: Ellen M. Renner, Kevin A. Bash, Joshua M. Basler, Christopher Q. Seow
  • Patent number: 10792092
    Abstract: A bipolar electrosurgical fusion/sealer and dissector is provided that is arranged to simultaneously fuse and cut tissue captured between jaws of the instrument. The jaws include particularly positioned, shaped and/or oriented electrodes along with a compressible landing pad to perform the simultaneous fusion and cutting of tissue. An electrosurgical generator is arranged to supply RF energy through the instrument and monitors a phase angle of the supplied RF energy and adjusts or terminates the supplied RF energy based on the monitored phase angle to optimally fuse and dissect the tissue.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: October 6, 2020
    Assignee: Applied Medical Resources Corporation
    Inventors: Daniel McFarland, Michael Whitlock, Patrick Elliott, Duy Nguyen, Aaron Jimenez, Andrea Chan, Vanna Lee
  • Patent number: 10779844
    Abstract: Surgical tissue fusion instrument having two gripping structures which are movable relative to each other, are designed for gripping and bringing together biological tissue sections, and are assigned heat-generating means designed in such a way that tissue fusion takes place between the biological tissue sections by heat being supplied in the area of the gripping structures. At least one gripping structure is assigned a fluid-conducting system, which is designed to supply at least one liquid or flowable additive to the tissue sections during a tissue fusion process.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 22, 2020
    Assignee: AESCULAP AG
    Inventors: Rainer Bargon, Bernd Blender, Stefan Eick, Nikolaus Hafner, Patrick Heizmann, Eugen Herner, Christian Huber, Christof Merckle, Erich Odermatt, Christoph Rothweiler
  • Patent number: 10772675
    Abstract: An electrosurgical forceps incorporates a support element within an interior of a cup for supporting one or both tines at their proximal ends. The support element minimizes or prevents misalignment of the tips of the forceps during use.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: September 15, 2020
    Assignee: Kirwan Surgical Products LLC
    Inventors: Chadwick J. Whitcher, Robert T. Boyd
  • Patent number: 10758297
    Abstract: A surgical instrument has an end effector disposed on an elongate shaft end, the shaft projecting from a handle. The end effector grasps, cuts, and seals and/or coagulates tissue, and one of the operations is controlled by a rotatable drive shaft contained within the elongate shaft. The drive shaft moves longitudinally within the elongate shaft to move the end effector between a first and second condition. The instrument may have a further component such as a cutting blade arranged to move longitudinally within the drive shaft. The drive shaft is provided with apertures so as to reduce the surface area of the drive shaft and hence the friction between either the drive shaft and the elongate shaft and/or the drive shaft and the cutting blade, whilst at the same time providing channels through the drive shaft through which fluid can drain.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: September 1, 2020
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Marno Nagtegaal
  • Patent number: 10758294
    Abstract: An electrosurgical system includes an electrosurgical instrument with a pair of opposing first and second jaw members (2), (3). A first sealing electrode (9) is located on the first jaw member (2), while a second sealing electrode (10) is located on the second jaw member (3). One or both of the sealing electrodes are provided with electrically conductive stop members (12), the one or more stop members maintaining a predetermined spacing between the first and second sealing electrodes when the jaw members are in their closed position. One or more insulating members (14), (17), (19) are present to prevent the conductive stop members from causing an electrical short between the first and second sealing electrodes when the jaw members are in their closed position.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: September 1, 2020
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Lewis Meurig Jones
  • Patent number: 10751111
    Abstract: An electro-surgical bipolar forceps includes a first tip and a second tip, each having a body. The body has a distal end and a proximal end. The body has a first groove having a substantially planar base proximate the proximal end. A substantially planar face is proximate to the distal end of the tip body. The base and the face on each tip define planes that are approximately perpendicular with respect to each other. A tip assembly includes a tip and an engagement plug. When making the tip assembly, a planar surface on the engagement plug is aligned with the planar base of the groove in the tip. Then the tip is connected to the engagement plug.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: August 25, 2020
    Assignee: INTEGRA LIFESCIENCES SWITZERLAND SARL
    Inventors: Lisette Manrique, John Buonanno
  • Patent number: 10743931
    Abstract: Surgical access devices are provided having jaw assemblies that maintain a uniform spacing between the jaws and are electrically isolated from each other in a closed configuration. The devices provided for generally include one or more electrically insulative stops associated with a tissue engaging surface of one of the jaws, with the stops being configured to engage the tissue engaging surface of the opposed jaw. The stops set a uniform spacing between the jaws in the closed configuration, and provide electrical isolation. The stops can be disposed in intermediate, proximal, and/or distal portions of the jaw(s), and can be disposed at multiple locations of the jaw(s). The stops can come in many different forms and can be associated with jaws using a variety of techniques. Further, other embodiments, as well as methods for clamping tissue by providing a uniform gap between jaws during each closure stroke, are also provided.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 18, 2020
    Assignee: Ethicon LLC
    Inventors: Ellen Renner, Kris Kallenberger
  • Patent number: 10736687
    Abstract: Electrosurgical forceps that can provide improved hemostatis and tissue-cutting capabilities during surgical procedures. The electrosurgical forceps include opposing jaw members, each including first and second electrode members. The first and second electrodes included in the respective jaw members are disposed directly opposite one another, the first electrode members included in the respective jaw members are disposed diagonally opposite one another, and the second electrode members included in the respective jaw members are disposed diagonally opposite one another. A first high frequency (HF) electric power source is connectable across the first electrode members, and a second HF electric power source is connectable across the second electrode members, electrically isolating the first electrode members from the second electrode members, and allowing current to flow diagonally through the tissue between one or both of the first electrode members and the second electrode members.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 11, 2020
    Assignee: Gyrus Acmi, Inc.
    Inventors: Zane R. Ward, Richard J. Curtis
  • Patent number: 10716598
    Abstract: The present invention generally relates to methods and devices for treatment of spinal deformity, and in particular to the utilization of at least one implant to either maintain the position of at least one vertebra of a patient to prevent increase in abnormal spinal curvature, to slow progression of abnormal curvature, or to impose at least one corrective displacement and/or rotation on at least one vertebra of a patient so as to incrementally correct abnormal spinal curvature.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: July 21, 2020
    Assignee: Globus Medical, Inc.
    Inventor: Jeffrey David Gordon
  • Patent number: 10702329
    Abstract: An end effector for an electrosurgical instrument is disclosed which includes a first jaw, a first energy delivery surface, a first distal end, and a first proximal end. A second jaw of the end effector includes a second energy delivery surface, a second distal end, and a second proximal end. The end effector also includes an electrically conductive gap setting member which defines a distal gap distance between the first and second energy delivery surfaces. At least one pivot is fixed to one of the jaws to set a proximal gap distance between the first and second energy delivery surfaces. A method for making an end effector and a method for assembling an end effector for an electrosurgical instrument are also disclosed.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 7, 2020
    Assignee: Ethicon LLC
    Inventors: Geoffrey S. Strobl, William D. Shaw, Jr., Ellen M. Nienhaus, Barry C. Worrell
  • Patent number: 10695083
    Abstract: A grasping treatment instrument includes a grasping piece, and a supporting member opening and closing relative to the grasping piece. A clamp member is provided between the supporting member and the grasping piece in open and close directions of the supporting member, and the clamp member includes an opposed surface opposed to the grasping piece, and a back surface facing to an opposite side of the opposed surface. The grasping treatment instrument includes a cover member made of a material having lower thermal conductivity than the clamp member, and the cover member covers the clamp member from the back surface side in a part on a distal side with respect to a position where the clamp member is pivotally supported.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 30, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Seigo Kase
  • Patent number: 10660713
    Abstract: An end effector for use and connection to a robot arm of a robotic surgical system, wherein the end effector is controlled and/or articulated by at least one cable extending from a respective motor of a control device of the robot surgical system, is provided. The end effector includes a jaw assembly defining a longitudinal axis and including a pair of jaws. Each jaw includes a proximal portion pivotally connected to the distal hub assembly; and a distal portion extending distally of the proximal portion thereof. The end effector additionally includes an actuation cable having a distal end operatively connected to the pair of jaws and a proximal end operatively connected to the at least one motor. In use, axial translation of the actuation cable results in one of an opening and a closing of the jaw assembly.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: May 26, 2020
    Assignee: COVIDIEN LP
    Inventors: James McCrea, Ruth Beeby, Thomas McGaffigan, Steve Woodard
  • Patent number: 10660692
    Abstract: An apparatus includes a body, a shaft assembly, and an end effector. The end effector includes an ultrasonic blade and a clamp arm assembly. The ultrasonic blade is in acoustic communication with an acoustic waveguide of the shaft assembly. The clamp arm assembly is pivotable toward and away from the ultrasonic blade. The clamp arm assembly includes a first electrode and a second electrode. The first and second electrodes are operable to cooperate to apply bipolar RF energy to tissue.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 26, 2020
    Assignee: Ethicon LLC
    Inventors: Jason R. Lesko, Catherine A. Corbett, William B. Weisenburgh, II, Barry C. Worrell, Mark A. Davison, Nathan Cummings, Ellen Burkart, William D. Dannaher, Christina M. Hough, Craig N. Faller, Adam Brown, Jeffrey D. Messerly, Kai Chen, William E. Clem
  • Patent number: 10653477
    Abstract: An improved surgical instrument having an end effector mounted on the end of an elongate shaft extending from a handle. The end-effector is capable of several different operations, including grasping, cutting, and sealing and/or coagulating tissue, and one of the operations is controlled by a trigger mechanism contained within the handle. In some embodiments, the end effector includes a blade assembly, the trigger mechanism being formed of a three pivot slider-crank mechanism arranged to drive the blade assembly longitudinally along a rotatable drive shaft contained within the elongate shaft. As such, the mechanism is configured so as to drive the blade assembly with enough force that the cutting blade is able to cut through tissue without the user needing to apply any additional force to the trigger, the me. Such an arrangement is particularly advantageous when the blade is being used to cut thick tissue.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 19, 2020
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Marno Nagtegaal
  • Patent number: 10646267
    Abstract: An end effector assembly includes first and second jaw members pivotable between spaced-apart and approximated positions. The first and second jaw members include first and second proximal flanges, respectively. A pivot pin couples the proximal flanges of the jaw members to one another. The pivot pin includes a body and a head. The body is coupled to the first proximal flange. The head defines a first ramped surface configured to slidably contact a second ramped surface of the second proximal flange. In the spaced-apart position of the jaw members, the first and second ramped surfaces are oppositely disposed such that a maximum clearance is defined between the first and second proximal flanges. In the approximated position of the jaw members, the first and second ramped surfaces are similarly disposed such that a minimum clearance is defined between the first and second proximal flanges.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 12, 2020
    Assignee: Covidien LLP
    Inventor: Weijiang Ding
  • Patent number: 10631922
    Abstract: A method for identifying and treating tissue includes providing an electrosurgical treatment device including an electrode assembly. One or more electrical property values of target tissue are measured. The measured electrical property values of the target tissue are compared against electrical property values of known tissue types. A tissue type of the target tissue is identified. An energy delivery configuration of the electrosurgical treatment device is adjusted to the type of target tissue. The electrosurgical treatment device is activated to treat the target tissue.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 28, 2020
    Assignee: COVIDIEN LP
    Inventors: Mani N. Prakash, Timothy J. Bahney, Darren Odom