With Forceps Or Tweezers Patents (Class 606/51)
  • Patent number: 11419665
    Abstract: An electrosurgical forceps includes a pair of first and second shaft members pivotably coupled to one another, an end effector assembly coupled to the pair of first and second shaft members, a knife selectively translatable through the first shaft member and the end effector assembly, and a knife deployment mechanism. The second shaft member has a flange extending therefrom toward the first shaft member. The knife deployment mechanism includes a distal extension movably coupled to the first shaft member and configured to engage the flange of the second shaft member when the knife is an extended position and the end effector assembly is in a closed configuration. The engagement between the distal extension and the flange resists movement of the end effector assembly from the closed configuration.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: August 23, 2022
    Assignee: Covidien LP
    Inventors: Daniel W. Mercier, Kelley D. Goodman, Craig V. Krastins, Robert F. Mccullough, Jr., Jennifer L. Rich, Grant T. Sims
  • Patent number: 11419666
    Abstract: An instrument including a first arm and a second arm. The first arm includes a first jaw including a first distal end. The second arm includes a second jaw including a second distal end. One of the first jaw and the second jaw includes a first protrusion. When the instrument is moved into a closed configuration, the first distal end and the second distal end make contact, which occurs after the first protrusion and the opposing jaw make contact.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: August 23, 2022
    Assignee: Gyrus ACMI, Inc.
    Inventors: Kester J. Batchelor, Theodore C. Blus, Tailin Fan, Riyad Moe
  • Patent number: 11389164
    Abstract: A method implemented by a surgical instrument is disclosed. The surgical instrument includes first and second jaws and a flexible circuit including multiple sensors to optimize performance of a radio frequency (RF) device. The flexible circuit includes at least one therapeutic electrode couplable to a source of RF energy, at least two sensing electrodes, and at least one insulative layer. The insulative layer is positioned between the at least one therapeutic electrode and the at least two sensing electrodes. The method includes contacting tissue positioned between the first and second jaws of the surgical instrument with the at least one therapeutic electrode and at the least two sensing electrodes; sensing signals from the at least two sensing electrodes; and controlling RF energy delivered to the at least one therapeutic electrode based on the sensed signals.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 19, 2022
    Assignee: Cilag GmbH International
    Inventors: David C. Yates, Frederick E. Shelton, IV, Jason L. Harris
  • Patent number: 11389229
    Abstract: A surgical forceps includes a housing having one or more shafts attached thereto and an end effector assembly disposed at a distal end thereof. The end effector assembly includes first and second jaw members disposed in opposing relation relative to one another. At least one jaw member is moveable from an open position to a closed position for grasping tissue therebetween. The jaw members include at least one sensing component that determines an output of one or both of cross-sectional diameter and composition of tissue disposed between the jaw members. A processing component is configured to receive the output and determine a seal pressure for adequately sealing tissue disposed between the jaw members based upon the output. A regulating component regulates the movement of the jaw members between the first and second positions such that the determined seal pressure is applied to tissue disposed therebetween.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 19, 2022
    Assignee: Covidien LP
    Inventors: Jennifer S. Harper, J. Bruce Dunne
  • Patent number: 11376063
    Abstract: Surgical devices, systems, and methods are provided for applying monopolar energy and bipolar energy to tissue. In one embodiment, a surgical device is provided with an end effector that has first and second jaws movable between an open position and a closed position, and a conductive member that extends through the end effector. The conductive member has a retracted position in which the conductive member is substantially disposed within the end effector and an extended position in which the conductive member extends at least partially distally beyond the end effector. The conductive member is configured to conduct energy through tissue adjacent thereto at least when the conductive member is in the extended position.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: July 5, 2022
    Assignee: Cilag GmbH International
    Inventors: Patrick J. Minnelli, Darcy Greep, Ion Nicolaescu, John Brady, Chad Frampton, Matthew Schneider, Richard W. Timm, Mark Glassett
  • Patent number: 11376031
    Abstract: Apparatus for performing a minimally-invasive procedure, the apparatus comprising: a tool comprising: a shaft having a distal end and a proximal end; a handle attached to the proximal end of the shaft; and an end effector attached to the distal end of the shaft; wherein the shaft comprises a flexible portion extending distally from the proximal end of the shaft, and an articulating portion extending proximally from the distal end of the shaft, and wherein the articulating portion comprises a flexible spine; wherein a plurality of articulation cables extend through the shaft from the handle to the flexible spine, such that when tension is applied to at least one of the plurality of articulation cables, the flexible spine bends; wherein a rotatable element extends through the shaft from the handle to the end effector, such that when the rotatable element is rotated, the end effector rotates; and wherein an actuation element extends through the shaft from the handle to the end effector, such that when the actuat
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: July 5, 2022
    Assignee: Lumendi Ltd.
    Inventors: Jonathan O'Keefe, Jeffrey Cerier, Amos Cruz, David Rezac
  • Patent number: 11364066
    Abstract: An irrigating bipolar forceps may include a first forceps arm, a conductor tip of the first forceps arm, a second forceps arm, a conductor tip of the second forceps arm, an input conductor isolation mechanism, and irrigation tubing. A proximal end of the first forceps arm may be disposed within the input conductor isolation mechanism and a proximal end of the second forceps arm may be disposed within the input conductor isolation mechanism. An application of a force to a lateral portion of the forceps arms may be configured to close the forceps arms. A reduction of a force applied to a lateral portion of the forceps arms may be configured to open the forceps arms. The irrigation tubing may transport a fluid from an irrigation supply system to a surgical site.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: June 21, 2022
    Inventors: Gregg D Scheller, Brett D Smith
  • Patent number: 11357978
    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy that may be coupled to an ablation device including at least one electrode for ablation pulse delivery to tissue. The signal generator may generate and deliver voltage pulses to the ablation device in the form of a pulse waveform in a predetermined sequence where the signal generator may independently configure a set of electrodes of an ablation device. The signal generator may further perform active monitoring of a set of electrode channels and discharge excess energy using the set of electrode channels.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 14, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: William Bowers, Raju Viswanathan, Gary Long
  • Patent number: 11311326
    Abstract: An electrosurgical instrument is disclosed including an end effector, a shaft assembly, and a link. The end effector includes a first jaw rotatable relative to a second jaw between an open position and a closed position. The shaft assembly includes an outer tube, a jaw tube disposed within the outer tube, an actuation band operably coupled to the jaw tube. The jaw tube is configured to move within the outer tube between a proximal end and a distal end. The link includes a first end and a second end. The first end of the link is pivotably coupled to the actuation band. The second end of the link is pivotably coupled to the first jaw. The jaw tube is configured to rotate the first jaw towards the closed position based on movement of the jaw tube towards the proximal end.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 26, 2022
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11304720
    Abstract: Various systems and methods for controlling the activation of energy surgical instruments are disclosed. An advance energy surgical instrument, such an electrosurgical instrument or an ultrasonic surgical instrument, can include one or more sensor assemblies for detecting the state or position of the end effector, arm, or other components of the surgical instrument. A control circuit can be configured to control the activation of the surgical instrument according to the state or position of the components of the surgical instrument.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 19, 2022
    Assignee: Cilag GmbH International
    Inventors: Cory G. Kimball, Ion V. Nicolaescu, Andrew W. Carroll, David C. Yates, Daniel W. Price, William B. Weisenburgh, II, Jeffrey L. Aldridge, Monica Louise Zeckel Rivard, Heather N. Doak, Mary E. Mootoo, Eric M. Roberson
  • Patent number: 11298177
    Abstract: A treatment system includes a treatment tool and an energy source apparatus. The treatment tool includes a heater and bipolar electrodes to grip a treatment target. The energy source apparatus supplies electrical energy to the treatment tool. A processor controls the output to the bipolar electrodes and the heater. The processor causes a high-frequency electric power to be output to the bipolar electrodes and detects a parameter that varies depending on tissue volume of the treatment target. The processor sets a target value related to an output control process for controlling the output to the heater. The processor controls the output to the heater so as to modify the treatment target with the heat of the heater. The processor increases the output and temperature to the heater until at least a predetermined point of time after starting the output control process for controlling the output to the heater.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: April 12, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsuyoshi Hayashida, Sadayoshi Takami, Toshifumi Katsuragi, Yoshitaka Honda
  • Patent number: 11272977
    Abstract: An electrically energized medical instrument uses one or more drive cables to both actuate mechanical components of a wrist mechanism or an effector and to electrically energize the effector. Electrical isolation can be achieved using an insulating main tube through which drive cables extend from a backend mechanism to the effector, an insulating end cover that leaves only the desired portions of the effector exposed, and one or more seals to prevent electrically conductive liquid from entering the main tube. Component count and cost may be further reduced using a pair of pulleys that are shared by four drive cables.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 15, 2022
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Scott E. Manzo, William A. Burbank, Richard D. Gresham
  • Patent number: 11253313
    Abstract: An electrosurgical forceps instrument in which an energy conveying structure for efficiently transferring electromagnetic energy (e.g. microwave energy and/or radiofrequency energy) from a coaxial cable to electrodes on the forceps jaws is incorporated into a compact jaw opening structure. The jaw opening structure may be dimensioned to be suitable for insertion down the instrument channel of a endoscope or other scoping device. Alternatively, the device may be configured as a laparoscopic device or be used in open procedures. The instrument may be used as a tool to perform new minimally invasive surgical techniques such as Natural Orifice Transluminal Endosurgery (NOTES) or the like.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: February 22, 2022
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Hancock, George Ullrich, David Webb, Steven Morris, Patrick Burn, Malcolm White, Thomas Craven
  • Patent number: 11246601
    Abstract: A surgical clip applier and an elongated assembly thereof. The elongated assembly includes an outer shaft, an end effector assembly extending distally from the outer shaft and including first and second spaced-apart arms having first and second jaws disposed at respective free ends thereof, and an inner drive sleeve including a bearing assembly slidably disposed about the end effector assembly. The bearing assembly includes first and second bearing rollers positioned adjacent the first and second spaced-apart arms. Sliding of the bearing assembly from a proximal position to a distal position rolls the bearing rollers along the spaced-apart arms to urge the first and second spaced-apart arms towards one another, thereby moving the first and second jaws from a spaced-apart position to an approximated position to apply a surgical clip about tissue disposed between the first and second jaws.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: February 15, 2022
    Assignee: COVIDIEN LP
    Inventors: Jacob C. Baril, Roy J. Pilletere, Justin Thomas, Matthew A. Dinino
  • Patent number: 11241274
    Abstract: An electrode assembly comprises an electrode support, an electrode on the electrode support, the electrode having a working surface extending generally transverse to a thickness of the electrode, and a filament of electrically insulative material overlying a portion of the working surface of the electrode and at least partially extending through the thickness of the electrode. An electrosurgical may include an end effector having a jaw member comprising such an electrode assembly.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: February 8, 2022
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Dennis H. Vaders, Stuart Taylor
  • Patent number: 11241275
    Abstract: A surgical instrument includes an end effector and an actuator coupled to the end effector such that actuation of the actuator along a portion of an actuation path manipulates the end effector. A first activation button is electrically coupled to the end effector and is in-line with the actuation path. A first latch component is in-line with the actuation path; a selector is operably coupled to the actuator and movable between a first position and a second position. In the first position, a portion of the selector is positioned to activate the first activation button upon movement of the actuator along a portion of the actuation path to thereby supply energy to the end effector. In the second position, a second latch component of the selector is positioned to engage the first latch component to latch the actuator upon movement of the actuator along a portion of the actuation path.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: February 8, 2022
    Assignee: Covidien LP
    Inventor: Daniel A. Joseph
  • Patent number: 11219482
    Abstract: A surgical instrument includes a housing that supports an elongated shaft. A selectively movable drive rod extends through the elongated shaft and carries a cam pin in a longitudinal direction. An end effector for surgically treating tissue is supported by the elongated shaft and includes upper and lower jaw members pivotally coupled to one another about a pivot axis. The upper jaw member includes a first pair of laterally spaced flanges, and the lower jaw member includes a second pair of laterally spaced flanges defining a camming slot for engaging the cam pin. The flanges are arranged in an offset configuration where one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 11, 2022
    Assignee: Covidien LP
    Inventors: James D. Allen, IV, Edward M. Chojin, Joseph D. Bucciaglia
  • Patent number: 11197711
    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. As a result, heat transfer from the electrode to the respective electrode carrier is restricted. This, on one hand, benefits the desired surgical outcome and, on the other hand, prevents parasitic heating of the surgical instrument and concomitant damage to surrounding tissue.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 14, 2021
    Assignee: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Klaus Fischer, Achim Brodbeck, Daniel Schaeller
  • Patent number: 11191587
    Abstract: A method of manufacturing an end effector assembly includes forming an insulative spacer of a non-conductive material, creating a rib on a surface of the insulative spacer, and metalizing the rib with a conductive material to integrally form a conductive strip on a surface of the rib.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: December 7, 2021
    Assignee: Covidien LP
    Inventor: Purvish Soni
  • Patent number: 11179174
    Abstract: In an end effector of a high-frequency treatment instrument, a coating covers an outer surface of an electrode, and formed from a conductive mixture obtained by mixing a non-conductive material and a conductive material. The conductive material contained in the mixture includes first elements and second elements, and each of the first elements has a shape with a higher flatness quotient than each of the second elements.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 23, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsunetaka Akagane
  • Patent number: 11166759
    Abstract: A surgical forceps including an end effector assembly has first and second jaw members. At least one of the first or second jaw members has a jaw frame defining a channel therein, an insulative member disposed within the channel of the jaw frame, and an electrically-conductive plate having a tissue contacting surface and at least one folded side portion. The insulative member includes a top portion having a tissue facing surface. The tissue contacting surface of the electrically-conductive plate is disposed on the tissue facing surface of the insulative member. The at least one folded side portion of the electrically-conductive plate is folded over the top portion of the insulative member such that the electrically-conductive plate conforms to a shape of the top portion of the insulative member.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 9, 2021
    Assignee: Covidien LP
    Inventors: John J. Kappus, David N. Heard, Joe D. Sartor
  • Patent number: 11160604
    Abstract: An electrosurgical device is disclosed. The electrosurgical device includes a cartridge configured to be disposed within an elongate channel of an end effector. The cartridge includes an electrode having a plurality of electrode portions disposed along a longitudinal axis of the cartridge. The electrode is configured to electrically couple to a generator. Each electrode portion of the plurality of electrode portions is configured to deliver an amount of energy to a tissue placed proximate thereto. An amount of energy delivered by a first electrode portion of the plurality of electrode portions differs from an amount of energy delivered by a second electrode portion of the plurality of electrode portions.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: November 2, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Mark A. Davison, Jason L. Harris
  • Patent number: 11154346
    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 handle assembly includes a housing, and an arm. The arm may pivot the second jaw between the open position and the closed position. The knife drive assembly includes an input assembly, and output assembly coupled with the knife, and a compound pulley assembly. The compound pulley assembly includes a pair of pulley wheels each having an input track, an output track, an input cable, and an output cable. The input assembly can drive the input cable a first proximal distance in order to rotate the pair of pulley wheels in a first angular direction, thereby driving the output cable a first distal direction to actuate the knife from the pre-fired position toward the fired position.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: October 26, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11147607
    Abstract: A surgical instrument, system and method for adjusting a compression force applied by a surgical instrument are disclosed. The method includes determining tissue impedance of tissue in contact with an end effector of the surgical instrument, determining a tissue type based on the tissue impedance, selecting a first energy modality to deliver to the surgical instrument, generating a first signal waveform based on the first energy modality, selecting a second energy modality to deliver to the surgical instrument, generating a second signal waveform based on the second energy modality, outputting the first and second signal waveform to deliver energy to the end effector, and adjusting a compression force applied by the end effector by changing a size of a gap between the tissue and the clamp arm based on a proportion of the first signal waveform to the second signal waveform.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 19, 2021
    Assignee: Cilag GmbH International
    Inventors: David C. Yates, Frederick E. Shelton, IV, Jason L. Harris
  • Patent number: 11135007
    Abstract: An end effector assembly for use with an electrosurgical instrument is provided. The electrosurgical instrument includes a handle having a shaft that extends therefrom, an end effector disposed at a distal end of the shaft, at least one electrode operably coupled to the end effector and adapted to couple to a source of electrosurgical energy, a chromium nitride coating covering at least a portion of the electrode, and a hexamethyldisiloxane plasma coating covering at least a portion of the chromium nitride coating.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: October 5, 2021
    Assignee: Covidien LP
    Inventors: Joe D. Sartor, William E. Robinson, Todd W. Boucher
  • Patent number: 11129671
    Abstract: A controller carries out a single outputting phase in which only first electric energy is supplied to an electrode, and transitions the single outputting phase to a simultaneous outputting phase in which the first electric energy and second electric energy are simultaneously output and treated target is denatured due to both of a high-frequency current and treatment energy generated in a functioning element. The controller sets a control pattern relating to the treatment energy in the simultaneous outputting phase, based on an impedance at a certain time point in the single outputting phase and/or a variation with time of the impedance in the single outputting phase.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: September 28, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshitaka Honda, Tsuyoshi Hayashida, Danilo Jr. Baring Legaspi
  • Patent number: 11123129
    Abstract: A surgical instrument includes an end effector, a handle assembly, and an electrode activation assembly. The end effector includes a first jaw, a second jaw, a knife, and an electrode assembly. The handle assembly includes a housing, and an arm. The arm can pivot the second jaw between the open position and the closed position. The arm can pivot relative to the housing between a first position, a second position, and a third position. The electrode activation assembly includes an activation button associated with the handle assembly, a resilient body, and a detent associated with either the housing or the arm. The activation button can activate the electrode assembly in response to the arm pivoting to the third position. The resilient body includes a first cam feature. The detent can engage the first cam feature as the arm pivots between the first position and the second position.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 21, 2021
    Assignee: Cilag GmbH International
    Inventor: Chad P. Boudreaux
  • Patent number: 11116565
    Abstract: A surgical instrument is provided and includes a housing having a shaft. An end effector assembly operatively connects to the shaft and has a pair of first and second jaw members. A jaw insert is operably associated with the first and second jaw members. The jaw insert includes one or more cam slots defined therein configured to receive a cam pin that upon movement thereof rotates the first and second jaw members from an open position to a clamping position and an opening defined therein configured to securely house a pivot pin that provides a point of pivot for the first and second jaw members. The jaw insert is manufactured from an insulative medium to dielectrically isolate the first and second jaw members.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 14, 2021
    Assignee: Covidien LP
    Inventors: Duane E. Kerr, Glenn A. Horner
  • Patent number: 11109928
    Abstract: Certain aspects relate to medical instruments including wrists with hybrid redirect surfaces. Such medical instruments can include, for example, a shaft with a wrist positioned at a distal end. The wrist can include a proximal clevis connected to the shaft and a distal clevis pivotally connected to the proximal clevis. The wrist can also include a static redirect surface, such as a face of a clevis, and a dynamic redirect surface, such as a pulley. The instrument can include an end effector connected to the distal clevis. A plurality of pull wires can extend through the shaft and the wrist and engage with and actuate the wrist and the end effector. A first pull wire segment of the plurality of pull wires can engage the static redirect surface, and a second pull wire segment of the plurality of pull wires can engage the dynamic redirect surface.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: September 7, 2021
    Assignee: Auris Health, Inc.
    Inventor: Travis Michael Schuh
  • Patent number: 11103297
    Abstract: A medical device includes: a housing; a switch provided on the housing; and a converter provided in the housing. The switch is configured to allow switching between a plurality of states and is configured to output a first signal in response to one of the states to which the switching is performed. The converter is configured to convert the first signal into a second signal of a different system when the converter receives the output of the first signal, and is configured to output the second signal to an outside configured to detect the second signal.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 31, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Tatsuya Suzuki, Ko Kawashima, Yuichi Shintomi
  • Patent number: 11090050
    Abstract: A trigger assembly of a surgical instrument includes a trigger, a first linkage, a second linkage, and a slider block configured such that moving the manipulation portion in a first direction relative to a housing of the surgical instrument translates the slider block along a longitudinal axis relative to the housing. Another trigger assembly of a surgical instrument includes a trigger and a coupling sphere rotatably captured within a cavity of a retention portion of the trigger such that movement of a manipulation portion of the trigger relative to the housing translates the coupling sphere along the longitudinal axis relative to the housing.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: August 17, 2021
    Assignee: Covidien LP
    Inventor: John A. Hammerland, III
  • Patent number: 11090111
    Abstract: A surgical instrument includes a housing and an elongated shaft operably coupled to an actuating mechanism moveable between an actuated position and an unactuated position. An end effector includes a pair of opposing first and second jaw members and is adapted to connect to a source of electrosurgical energy. A switch is moveable between an activated position to initiate delivery of electrosurgical energy to the end effector and a deactivated position to terminate delivery of electrosurgical energy to the end effector. A switch activation member is configured to move the switch between an activated position and a deactivated position. A switch control member is configured to maintain the switch in the activated position during at least partial movement of the actuating mechanism from the actuated position to the unactuated position.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 17, 2021
    Assignee: COVIDIEN LP
    Inventor: Tony Moua
  • Patent number: 11076908
    Abstract: A forceps includes an end effector assembly with a first jaw having a tissue sealing surface and an electrode on the sealing surface, and a second jaw having a tissue sealing surface and an electrode on the sealing surface. The first jaw and the second jaw move between an open position and a closed position. The sealing surface of at least one of the first jaw and the second jaw has a flexible medial section and rigid lateral sections.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 3, 2021
    Assignee: Gyrus Acmi, Inc.
    Inventors: Huisun Wang, Kester J. Batchelor, Zane Ward
  • Patent number: 11071553
    Abstract: An endoscopic surgical clip applier (10) includes a handle assembly (100) configured to releasably engage at least two in different endoscopic assemblies (200, 300). The handle assembly (100) is configured to transition from a non-ratcheting use condition to a ratcheting use condition when an endoscopic assembly (200) configured for ratcheting use is engaged with the handle assembly (100). The handle assembly (100) is maintained in the non-ratcheting use condition when an endoscopic assembly (300) configured for non-ratcheting use is engaged with the handle assembly (100). Endoscopic assemblies (200, 300) for use with the handle assembly (100) are also provided.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 27, 2021
    Assignee: COVIDIEN LP
    Inventors: Anirudh Raikar, Longsheng Cai, Kun Zhao, Yuandong Tan
  • 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: 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: 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: 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: 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: 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: 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