Endoscopic Patents (Class 606/46)
  • Patent number: 11096740
    Abstract: An electrode arrangement according to the invention for a bipolar resectoscope (50) comprises an elongate electrode carrier (2), an active electrode disposed at a distal end of the electrode carrier (2) and a neutral electrode, wherein a distal end section of the electrode carrier (2) is embodied as an electrode body (4, 40) through which a supply line (20) of the active electrode is guided and wherein the neutral electrode is formed by the electrode body (4, 40) or a portion of the electrode body (4, 40). The invention also relates to a resectoscope (50).
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: August 24, 2021
    Assignee: KARL STORZ SE & Co. KG
    Inventors: Martin Hahn, Rainer Hermle, Franziska Wirth, Uwe Wittke
  • Patent number: 11071846
    Abstract: A deflection catheter is disclosed for aiding in bending of a catheter or other elongate medical device transseptally delivered within a left atrium of a heart. The deflection catheter includes a deflection aid assembly having an outer component, an inner component and a connecting band. The connecting band connects a first inner branch segment and a second inner branch segment of the inner component, and also extends between a first outer branch segment and a second outer branch segment of the outer component whereby a catheter receiving opening is defined between the connecting band and the first and second outer branch segments. Proximal/distal movement of the inner component relative to the outer component increases/decreases an area of the catheter receiving opening in order to secure the catheter or other elongate medical device to the deflection aid assembly for subsequent bending by proximally tugging or pulling on the deflection aid assembly.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 27, 2021
    Assignee: Medtronic Vascular, Inc.
    Inventor: Donna Curley
  • Patent number: 11000279
    Abstract: A surgical instrument is disclosed comprising a shaft, an end effector, and an articulation system which are configured to provide various mechanical advantages.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 11, 2021
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, Gregory J. Bakos, Jason L. Harris
  • Patent number: 10987159
    Abstract: An end effector assembly (100, 200) of an electrosurgical forceps (10, 10?) includes first and second jaw members (110, 120, 210, 220). At least one of the jaw members (110, 120, 210, 220) is movable relative to the other between a spaced-apart position and an approximated position. At least one of the jaw members (110, 120, 210, 220) includes an electrically-conductive inner member (115, 125) defining an outer surface, a first electrically-insulative layer (116, 126) disposed on a portion of the outer surface of the electrically-conductive inner member (115, 125), a second electrically-insulative layer (117, 127) disposed on another portion of the outer surface of the electrically-conductive inner member (115, 125), and an electrode (118, 128) disposed on the second electrically-insulative layer (117, 127) and electrically coupled to the electrically-conductive inner member (115, 125). The electrode (118, 128) defines a tissue-treating surface of the corresponding jaw member (110, 120, 210, 220).
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: April 27, 2021
    Assignee: Covidien LP
    Inventors: Weijiang Ding, Kai Liu, Jianjiang Chen
  • Patent number: 10987155
    Abstract: Bipolar forceps of the type where each of the prongs has a manually engageable portion spaced from the tip for manual squeezing of the prongs and an electrical supply system for applying a high-frequency electric current between tool tips to dissect through tissue planes and/or seal blood vessels includes a set of force measuring sensors for measuring forces, particularly squeezing forces, applied to the prongs at the tip. A temperature sensor is included to provide temperature information and temperature compensation. The sensors are applied to each prong in opposing pairs on the inside and outside surfaces and the outputs thereof are applied to a bridge arrangement. The signals are sent to a processor for generating warning signals and for recording forces for training purposes where a haptic system can be used.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 27, 2021
    Inventors: Garnette Roy Sutherland, Kourosh Zareinia, Liu Shi Gan, Tomas Jens Hirmer, Sanju Lama
  • Patent number: 10980591
    Abstract: A multi-functional electrosurgical plasma accessory having a handpiece and an extendable probe assembly. The extendable probe assembly has a shaft member, a tube, an electrode, a spacer and a collet. The shaft member and tube each may be formed of a plurality of structures assembled together, each may be of a single unitary design, or both together may be of a single unitary design. The shaft member has an interior channel, a distal end and a proximal end comprised of a neck portion at the distal end of the shaft member, a grip. The elongated portion of the shaft is movable within the spacer between a first position in which a portion of a distal end of the electrode extends out of the tube and a second portion in which the distal end of the electrode does not extend out of the tube.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 20, 2021
    Assignee: U.S. Patent Innovations LLC
    Inventors: Jerome Canady, Taisen Zhuang, Dereck Chiu, Siddhant Chawla
  • Patent number: 10959806
    Abstract: An electrosurgical device may include a front portion releasably attached to a reusable handle. The reusable handle may include a single motor configured to actuate a tissue knife mechanism and an articulation mechanism in the front portion. The reusable handle may include a controller configured to sense a position of a knife advancement control in the front portion and actuate the tissue knife via the motor when the knife advancement control is at a predetermined position. The controller may receive data from the front portion indicating that the front portion includes an articulation joint. If the front portion includes an articulation joint, the controller may actuate, via the motor, an articulation mechanism to adjust an angle of the articulation joint when an articulation control in the front portion is at a predetermined position. The reusable handle may be used with a front portion having or lacking an articulation joint.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: March 30, 2021
    Assignee: Ethicon LLC
    Inventors: John A. Hibner, Geoffrey S. Strobl, Thomas B. Remm
  • Patent number: 10874465
    Abstract: A system and method of operating a minimally invasive cutting instrument includes a surgical cutting instrument. The surgical cutting instrument includes a drive unit, an end effector located at a distal end of the instrument, and a garage for housing the cutting blade when the cutting blade is not in use. The end effector includes gripping jaws and a cutting blade. To perform a cutting operation, the instrument extends the cutting blade from a first position to a second position, retracts the cutting blade from the second position to a third position between the first and second positions, and further retracts the cutting blade to the first position. While the cutting blade is not in use, the cutting blade is maintained in the first position using a restraining mechanism in the drive unit, force or torque applied by a motor or other active actuator to the drive unit, or both.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 29, 2020
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: David W. Weir, Michael Waldo, Melody Wu
  • Patent number: 10874474
    Abstract: A system and method of force or torque limit compensation includes a surgical instrument for use with a computer-assisted medical device. The surgical instrument includes an end effector located at a distal end of the instrument, a drive unit for operating a degree of freedom of the instrument, a shaft coupled to the drive unit, and one or more drive mechanisms in the shaft for coupling force or torque from the drive unit to the end effector and the articulated wrist. To control the degree of freedom, the instrument is configured to determine a current position of the degree of freedom, determine a force or torque limit compensation based on the current position, alter one or more force or torque limits based on the force or torque limit compensation, and adjust the degree of freedom subject to the one or more force or torque limits.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 29, 2020
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Melody Wu, David W. Weir
  • Patent number: 10864036
    Abstract: Ablation systems are provided. Methods of using the systems to ablate tissue are also provided. The ablation systems can include a first guide needle and a second guide needle, and the methods can include securing the tissue and guiding the ablation system into the tissue for the ablation, the securing and the guiding facilitated by the first guide needle and the second guide needle. The dual coil ablation systems can also include a phase-offset between the coils to achieve a significant and surprising enhancement to the energy density provided by the systems, and the uniformity of ablation provided by the methods.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 15, 2020
    Assignee: TROD MEDICAL US, LLC
    Inventors: John To, Paul J. Birkmeyer, Samir S. Taneja, Steffen Jorgensen
  • Patent number: 10813685
    Abstract: A bipolar electrosurgical instrument includes a handle portion, a shaft extending from the handle portion, a pad electrode coupled to the distal end of the shaft, and a loop electrode configured to be selectively transitioned from a deployed configuration, wherein the loop electrode extends outwardly from a distal end of the shaft in a manner capable of receiving tissue, to a non-deployed configuration, wherein the loop electrode is disposed proximate to the distal end of the shaft, to treat tissue.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: October 27, 2020
    Assignee: COVIDIEN LP
    Inventors: Joe D. Sartor, John Westwood, Aaron D. Leyva
  • Patent number: 10799094
    Abstract: Provided is a connection structure for connecting a connection member having an attaching portion attachable to an endoscope, to a wire protective sheath into which an endoscope operation wire is configured to be partially inserted for protection. The connection structure includes: a through-hole disposed in the connection member, the wire protective sheath being insertable into the through-hole; and at least one swaging portion located at a different position from that of the attaching portion to partially constitute a peripheral wall of the through-hole. While the wire protective sheath is inserted into the through-hole, the at least one swaging portion is pressed to partially deform the through-hole, thereby connecting the connection member to the wire protective sheath.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: October 13, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Yoko Hiratsuka
  • Patent number: 10682174
    Abstract: Disclosed is a device for resecting an organ in a cavity of a living body. The device includes a guide with a tube and a tube, both cylindrical, the tube being mounted in the first tube; an electrical conductor surrounded by an electrically insulating sheath, the tube being a cylinder of revolution with an inner radius of value R1, the tube including a part which is a cylinder of revolution with an outer radius of value R2<R1 and with an angle at the center of a value Ac, and a part which is not a cylinder of revolution and has an angle at the center of value “360°?Ac”; the insulated conductor contacts the part of the tube, between the outer and inner walls of this tube; and a unit for keeping this insulated conductor in contact with the part of the tube.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: June 16, 2020
    Assignee: AB MEDICA
    Inventor: Alexandre Blanc
  • Patent number: 10667855
    Abstract: Dual coil ablation systems are provided. Methods of using the systems to ablate tissue are also provided. The dual coil ablation systems can include a first guide needle and a second guide needle, and the methods can include securing the tissue and guiding the dual coil ablation system into the tissue for the ablation, the securing and the guiding facilitated by the first guide needle and the second guide needle. The dual coil ablation systems can also include a phase-offset between the coils to achieve a significant and surprising enhancement to the energy density provided by the systems, and the uniformity of ablation provided by the methods.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: June 2, 2020
    Assignee: TROD MEDICAL US, LLC
    Inventors: John To, Paul J. Birkmeyer, Samir S. Taneja, Steffen Jorgensen
  • Patent number: 10639094
    Abstract: A surgical instrument includes an end effector assembly having jaw members movable between spaced-apart, first approximated, and second approximated positions. A knife is selectively movable relative to the end effector assembly between a retracted position, a first extended position, and a second extended position. A trigger is selectively actuatable between a un-actuated position, a first actuated position, and a second actuated position for moving the knife between its respective positions. A control member prevents movement of the trigger when the jaw members are disposed in the spaced-apart position, permits movement of the trigger to the first actuated position but prevents movement beyond the first actuated position when the jaw members are disposed in the first approximated position, and permits movement of the trigger to the second actuated position but prevents movement beyond the second actuated position when the jaw members are disposed in the second approximated position.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 5, 2020
    Assignee: Covidien LP
    Inventors: Eric R. Larson, Russell D. Hempstead, John J. Kappus
  • Patent number: 10603101
    Abstract: Electrosurgical lysing devices and related systems and methods. In some embodiments, the lysing device may comprise a lysing tip comprising a plurality of beads and at least one lysing member, such as a lysing rod, defining at least one lysing segment extending between each pair of adjacent beads. The at least one lysing member may extend through a tunnel extending at least partially through each of the plurality of beads so as to define the at least one lysing segment between each pair of adjacent beads.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: March 31, 2020
    Inventor: Paul Joseph Weber
  • Patent number: 10441343
    Abstract: Disclosed herein is a cutting and/or coagulating device that includes a cutting and/or coagulating member and a radio frequency generator such that an output of the radio frequency generator is connected to the cutting and/or coagulating member. The cutting and/or coagulating member is electrically resonant at the frequency of the radio frequency generator. Further, the cutting and/or coagulating member may include a resistance wire which is configured to directly contact a target cutting material. The cutting and/or coagulating member may be further heated to a visible glow. Furthermore, a method of cutting and/or coagulating is also contemplated.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 15, 2019
    Inventor: Donald J. Geisel
  • Patent number: 10383678
    Abstract: A vaginal cervical retractor used to maneuver and visualize the uterus during various medical examinations and procedures would include an inner tube provided with a movable assembly of plastic cups (cervical cup and vaginal cup) designed to be inserted into the uterine cavity and a retractable electrosurgical needle. A cervical cup is molded to a hollow outer shaft to form the movable cup assembly. This hollow shaft is provided through which the inner tube can be inserted. By utilizing a vaginal cervical retractor elevator provided with an inner rigid tubing, freely sliding vaginal cup and cervical cup designed to move on the inner tubing, attached to a hollow, plastic outer shaft into which the inner tubing can be inserted, and a retractable, flexible, electrosurgical needle, the colpotomy procedure can be performed with the improved uterine manipulator.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: August 20, 2019
    Assignee: University of Maryland, Baltimore
    Inventor: Vadim Morozov
  • Patent number: 10278761
    Abstract: An ablation device may generally comprise a first electrode, a plurality of second electrodes, and a grounding pad. Each of the plurality of second electrodes may comprise a first conductive section, a second conductive section, and a non-conductive section between the first conductive section and the second conductive section. The first electrode and each of the plurality of second electrodes may be coupled to an energy source delivering a series of electrical pulses to tissue to induce cell necrosis by irreversible electroporation.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: May 7, 2019
    Assignee: Ethicon LLC
    Inventors: Gary L. Long, David N. Plescia, Gregory J. Bakos
  • Patent number: 10245100
    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: September 18, 2015
    Date of Patent: April 2, 2019
    Assignee: COVIDIEN LP
    Inventors: Grant T. Sims, Michael B. Lyons
  • Patent number: 10219856
    Abstract: Disclosed herein is a cutting and/or coagulating device that includes a cutting and/or coagulating member and a radio frequency generator such that an output of the radio frequency generator is connected to the cutting and/or coagulating member. The cutting and/or coagulating member is electrically resonant at the frequency of the radio frequency generator. Further, the cutting and/or coagulating member may include a resistance wire which is configured to directly contact a target cutting material. The cutting and/or coagulating member may be further heated to a visible glow. Furthermore, a method of cutting and/or coagulating is also contemplated.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: March 5, 2019
    Inventor: Donald J. Geisel
  • Patent number: 10213252
    Abstract: Methods and systems are disclosed for treating diseased tissue by gentle heating. The method induces vasodilation on tissue disposed about an lumen having both healthy tissue and diseased tissue. The method includes coupling a probe surface to the luminal tissue at a target location and transmitting desired quantities of tissue remodeling energy from the coupled probe into each of a plurality of discrete remodeling zones in the luminal tissue so that the tissue remodeling energy heats the plurality of remodeling zones, the remodeling energy being configured to avoid muscular contraction and inhibit both acute and long-term occlusion of the lumen.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 26, 2019
    Assignee: Vessix, Inc.
    Inventors: Corbett W. Stone, Michael F. Hoey, Rolfe Tyson Gustus, Mike Perry, Arthur G. Blanck, Linas R. Kunstmanas
  • Patent number: 10206734
    Abstract: A high-frequency generator for an electric surgical instrument that treats a living tissue includes a power supply that generates a power, and a resonant circuit that excites a high-frequency signal. The resonant circuit includes a parallel resonant circuit which is connected to the power supply, and a series resonant circuit which is coupled to the parallel resonant circuit and is connected to the electric surgical instrument. The parallel resonant circuit has a higher parallel resonant frequency than a series resonant frequency of the series resonant circuit.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: February 19, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Sadayoshi Takami
  • Patent number: 9980769
    Abstract: Methods and devices for controlling motorized surgical devices are provided. In general, the methods and devices can allow a surgical device to grasp and cut tissue. In some embodiments, the device can include at least one sensor and a motor, and an output of the motor can be configured to be adjusted based at least in part on an output from the at least one sensor. The output of the motor can be configured to provide power for translation of a cutting element along an end effector of the device. Adjusting the motor's output can cause the cutting element to translate through the end effector at different speeds, thereby allowing the cutting element to cut through tissue being grasped by the end effector at different speeds.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 29, 2018
    Assignee: Ethicon LLC
    Inventors: Gregory A. Trees, Chad P. Boudreaux, Matthew C. Miller, Mark A. Davison, David C. Yates, John A. Hibner, Jill A. Inkrott-Smith
  • Patent number: 9848943
    Abstract: An irrigated needle electrode ablation catheter has a distal tip section with a tip electrode, a needle electrode assembly longitudinal movable relative to the catheter, and a needle centering insert in a channel in the tip electrode. The assembly has a proximal tubing and a distal needle electrode, and the insert supports the needle electrode in the channel at a predetermined separation distance from the tip electrode while enabling irrigation to flow circumferentially around the needle electrode through the channel and exit at the distal end of the tip electrode. The catheter also provides a first dedicated fluid pathway through the assembly and exits at the distal end of the needle electrode, and a second dedicated fluid pathway to supply fluid to the channel in the tip electrode, wherein the second pathway is defined by a guide tube and directed by a plunger member.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: December 26, 2017
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Christopher Beeckler, Athanassios Papaioannou, Rowan Hettel, Maribeth Esguerra Wilczynski
  • Patent number: 9795435
    Abstract: An end effector assembly for a surgical instrument includes first and second jaw members, each including a jaw frame, spacer, electrically-conductive plate, and outer housing. The jaw frame includes at least one proximal flange and a distal jaw support extending distally therefrom. The spacer defines a body and a wing disposed on either side of the body. The body defines a channel configured to receive the distal jaw support while each wing defines a slot. The plate defines a tissue-contacting portion and first and second legs extending perpendicularly from the tissue-contacting portion. The tissue-contacting portion is configured to sit atop the body of the spacer. Each of the legs is configured for receipt within the slot defined within one of the wings. The outer housing at least partially surrounds the distal jaw support, spacer, and legs and is configured to retain these components in position relative to one another.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 24, 2017
    Assignee: COVIDIEN LP
    Inventors: James D. Allen, IV, Jessica E. C. Olson, Purvish Soni, Jason G. Weihe
  • Patent number: 9788829
    Abstract: A device for reducing the volume of a hollow body organ includes a tissue port and a plurality of fasteners. The fasteners may be coupled to a flexible filament, such as a suture, which is tensioned to constrict the hollow body organ to achieve volume reduction.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 17, 2017
    Assignee: EndoGastric Solutions, Inc.
    Inventor: Steve G. Baker
  • Patent number: 9770282
    Abstract: An apparatus and a method for producing a virtual electrode within or upon a tissue to be treated with radio frequency alternating electric current. An apparatus in accord with the present disclosure includes a supply of a conductive or electrolytic fluid to be provided to the patient, an alternating current generator, and a processor for creating, maintaining, and controlling the ablation process by the interstitial or surficial delivery of the fluid to a tissue and the delivery of electric power to the tissue via the virtual electrode. A method in accord with the present disclosure includes delivering a conductive fluid to a predetermined tissue ablation site for a predetermined time period, applying a predetermined power level of radio frequency current to the tissue, monitoring at least one of several parameters, and adjusting either the applied power and/or the fluid flow in response to the measured parameters.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: September 26, 2017
    Assignee: Medtronic, Inc.
    Inventors: Michael F. Hoey, Mark A. Christopherson, Steven M. Goetz
  • Patent number: 9675369
    Abstract: An embodiment of a medical device includes a proximal handle, a distal end effector, an elongate member connecting the end effector to the handle, and a sheath enclosing at least a portion of the elongate member. The handle may include a first mechanism coupled to one of the sheath and the elongate member to move the sheath relative to the elongate member, a second mechanism coupled to the elongate member to rotate the elongate member relative to the handle, and a locking mechanism coupled to the first mechanism to hold the first mechanism in a default position. Embodiments also include methods of positioning the medical device to perform a medical procedure.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: June 13, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: James A. Teague, Eric Cheng, Mohamed Fazni Aziz
  • Patent number: 9655639
    Abstract: A tissue cutting device that is especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. The inner cannula includes a hinge between a body section and a cutting section that allows the cutting section to pivot when the inner cannula reciprocates within the outer cannula. A tissue collector is also provided and is in fluid communication with the lumen of the inner cannula. The tissue cutting device may be used with imaging device such as microscopes and endoscopes during neurosurgery procedures.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: May 23, 2017
    Assignee: Nico Corporation
    Inventor: Joseph L. Mark
  • Patent number: 9592085
    Abstract: A probe for ablating tissue comprises an electrosurgical working end configured to provide a first plasma about a first surface location and a second plasma about a second surface location, the first plasma having first ablation parameters and the second plasma having second ablation parameters. The probe has a working end with a thickness below 3 mm and produces a low temperature plasma.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 14, 2017
    Assignee: RELIGN Corporation
    Inventors: Aaron Germain, Balazs Lesko, Benedek Orczy-Timko
  • Patent number: 9526567
    Abstract: An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly includes a pair of opposing jaw members configured to grasp tissue therebetween. The assembly also includes a thread-like member having a first end coupled to at least one jaw member and a drive member coupled to a second end of the thread-like member. The drive member is configured to position the thread-like member between a first position and a second position, wherein the thread-like member cuts tissue when positioned in the second position.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: December 27, 2016
    Assignee: COVIDIEN LP
    Inventors: Boris Chernov, Igoris Misuchenko, Georgy Martsinovskiy, Mikhail Verbitsky
  • Patent number: 9504514
    Abstract: A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: November 29, 2016
    Assignee: COVIDIEN LP
    Inventors: David M. Garrison, James D. Allen, IV, Jeffrey R. Unger, Duane E. Kerr, Sean T. ONeill, Peter M. Mueller, Kim. V. Brandt, James S. Cunningham, Keir Hart, Daniel A. Joseph, Jason T. Sanders, Robert M. Sharp
  • Patent number: 9486277
    Abstract: A resectoscope includes an electrode arrangement having at least one electrode and being connected to a contact at a proximal end region of the electrode arrangement; a retaining body mounted on the resectoscope that is movable in the direction of movement of the electrode arrangement and includes an electrode mounting for accommodating the end region of the electrode arrangement; and a cable with a plug body for fixing to the retaining body while making contact with the contacts. The retaining body has a plug receptacle for fixing the plug body by an insertion movement aligned at right angles to the direction of movement of the electrode arrangement. In the position which is reached at the end of the insertion movement, the plug body can be turned into an end position where it is blocked by the plug receptacle against a movement in the opposite direction to the insertion movement.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: November 8, 2016
    Assignee: OLYMPUS WINTER & IBE GMBH
    Inventors: Nils Kapfermann, Christian Brockmann
  • Patent number: 9474438
    Abstract: Endoscopes having a hollow outer sheath configured for insertion into a patient's body are disclosed. A hollow inner sheath is receivable within the outer sheath, and is configured to slideably receive a first internal instrument. A working element can be configured to rotatably support at least the first internal instrument and a second internal instrument such that at least the first internal instrument and the second internal instrument are rotatable about a common axis of rotation being substantially coextensive with a longitudinal axis of the outer sheath. The working element can have at least one guide rail extending longitudinally of the axis of rotation and an actuator block can be slideably mountable to the at least one guiderail and so securable to at least one of the instruments as to be able to urge the at least one of the internal instruments longitudinally of the outer sheath.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 25, 2016
    Assignee: GYRUS ACMI, Inc.
    Inventor: Tailin Fan
  • Patent number: 9474881
    Abstract: In an embodiment a sheath allows one to simultaneously ablate tissue, using a catheter located in the sheath, and remove fluid from a patient's pericardial space, via the same sheath, all without withdrawing the ablation catheter from the sheath. Applying pressure (positive or negative) to fenestrations in the sheath may allow one to withdraw fluid from the space, navigate the sheath within the space, and/or adhere the sheath to tissue in the space. Other embodiments are described herein.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 25, 2016
    Inventor: Mehdi Razavi
  • Patent number: 9468487
    Abstract: An instrument for thermally-mediated therapies in targeted tissue volumes or for volumetric removal of tissue. In one embodiment, the instrument has an interior chamber that includes a diffuser structure for diffusing a biocompatible conductive fluid that is introduced under high pressure. The interior chamber further includes surfaces of opposing polarity electrodes for vaporizing the small cross-section diffused fluid flows created within a diffuser structure. In one embodiment, the diffuser structure includes a negative temperature coefficient of resistance material between the opposing polarity surfaces. The NTCR structure can self-adjust the lengths of current paths between the opposing polarities to insure complete vaporization of the volume of flow of conductive fluid.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: October 18, 2016
    Assignee: Tsunami MedTech, LLC
    Inventors: John H. Shadduck, Michael Hoey
  • Patent number: 9462936
    Abstract: A medical instrument, in particular a hysteroscope, has a shaft part (12) having a first shaft and an optical system having a second shaft (40), in which the shaft part (12) and optical system can be displaced with respect to one another along the shafts thereof such that, in a first position, the second shaft (40) of the optical system extends beyond the first shaft of the shaft part (12) on the distal side and that, in a second position, a distal end (23) of the first shaft of the shaft part (12) comes to rest approximately level with a distal end (41) of the second shaft (40) of the optical system.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: October 11, 2016
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Rudi Campo, Frank Doll
  • Patent number: 9414886
    Abstract: An electrode is for use in an electrosurgical probe, the electrode having two arms defining a longitudinal direction. The electrode also includes a loop depending from the two arms and defining a cutting area within the loop, and a vaporization member attached to one side of the loop. The vaporization member is such that it does not occlude the cutting area and yet presents a substantial profile when the electrode is moved in the longitudinal direction. The arrangement is such that when the electrode is moved in a first longitudinal direction, the loop is capable of resecting a sample of tissue. When the electrode is moved in the opposite longitudinal direction, the vaporization member is capable of vaporizing tissue adjacent thereto to form a groove therein.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: August 16, 2016
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Kelvin John Varney
  • Patent number: 9402683
    Abstract: A submucosal layer dissection instrument of the present invention includes an instrument body that is inserted into a submucosal layer, a line formed between the proximal end side and the distal end side of the instrument body; and an expanding section provided on the distal end side of the instrument body that expands in the case of having received a supply of fluid through the line.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: August 2, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Hiro-o Yamano, Akihito Sadamasa
  • Patent number: 9402679
    Abstract: A surgical instrument includes an elongated body having a distal end, a proximal end, and a bore extending between the distal and proximal ends, a pair of jaws for severing vessel mounted on the distal end of the body, wherein at least one of the jaws has an electrically conductive material, and a handle coupled to the proximal end of the elongated body, wherein in a first mode of operation, the electrically conductive material is for receiving energy from a DC source, and in a second mode of operation, the electrically conductive material is for receiving energy from a RF source.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 2, 2016
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Fred Ginnebaugh, Ryan Abbott, Justin Williams, Kenny Dang, Rohit Girotra
  • Patent number: 9375274
    Abstract: The ablation systems, ablation probes, and corresponding methods according to the present disclosure reduce or eliminate energy radiating from an ablation probe into the environment. Some ablation probes include a retractable sheath that shields at least the radiating portion of the ablation probe. The retractable sheath and/or the ablation probe may include conduits through which a fluid may flow to shield the radiating portion and to drive the retractable sheath to an extended state. Other ablation probes include apertures defined in the probe walls through which the fluid can flow to expand a balloon surrounding the radiating portion. Yet other ablation probes include a thermal indicator to indicate the temperature of the ablation probe to a user. The ablation systems include fluid circuits and associated mechanical controls for varying the contents and/or flow rate of the fluid provided to the radiating portion of the ablation probe.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: June 28, 2016
    Assignee: Covidien LP
    Inventor: William O. Reid, Jr.
  • Patent number: 9370329
    Abstract: A system for performing mapping and ablation functions includes a catheter sized and shaped for vascular access. The catheter includes an elongate body extending between a proximal end and a distal end. A tip section positioned at the distal end of the catheter body and includes a proximal portion and a distal portion. One or more electrode structures are formed on an exterior surface of the tip section. The one or more electrode structures each includes a mapping electrode at the distal portion of the tip section and a contact pad electrically coupled to the mapping electrode.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: June 21, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Zaya Tun, Isaac J. Kim, Josef V. Koblish, Minhchau N. Cao, Steve Ha
  • Patent number: 9333026
    Abstract: A system for resecting tissue includes a loop structure configured for cutting tissue, at least a portion of the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, wherein a first portion of the loop structure comprises a first electrode, and a second portion of the loop structure comprises a second electrode. A system for resecting tissue includes a loop structure configured for cutting tissue, the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, and a support structure coupled to a portion of the elongate structure and having a surface for contacting tissue.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: May 10, 2016
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Mark E. Girard, Tom Casey, Kimbolt Young, Nathan Murphy, Robert F. Rioux
  • Patent number: 9314294
    Abstract: A surgical system comprises a device adapted to deliver a plurality of surgical instruments to a site within a patient's body, a first surgical instrument comprising an active electrode probe, a second surgical instrument for performing a non-electrosurgical procedure, a conductive shield surrounding the active electrode probe of the first surgical instrument and connected to a reference potential, and a cold instrument monitor connected to the second surgical instrument and to the reference potential.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 19, 2016
    Assignee: ENCISION, INC.
    Inventors: David Newton, Warren Taylor
  • Patent number: 9254165
    Abstract: A system and method for detecting faults within an electrosurgical instrument having a shield and an active electrode uses multiple possible fault conditions. In one embodiment the monitoring system comprises an electrosurgical generator coupled to the electrosurgical instrument and adapted to deliver power to the active electrode of the electrosurgical instrument, monitoring circuitry coupled to the electrosurgical generator and the electrosurgical instrument.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: February 9, 2016
    Assignee: ENCISION, INC.
    Inventors: Kurt Albert Aronow, David Newton, Don R. Boyle
  • Patent number: 9254169
    Abstract: An ablation apparatus may generally comprise an elongated body having a proximal end and a distal end and a non-conductive tip at the distal end, a conductive sheath at least partially surrounding a portion of the elongated body intermediate the proximal end and the tip, and an electrical conductor electrically connected to the conductive sheath. The ablation apparatus may comprise a first electrode having a first diameter and a plurality of second electrodes each having a second diameter, wherein the first diameter is greater than the second diameter. Methods of using the ablation apparatus are also described.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 9, 2016
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Gary L. Long, David N. Plescia, Gregory J. Bakos
  • Patent number: 9220560
    Abstract: A treatment instrument for an endoscope is provided that is suitable for cutting submucosa in endoscopic submucosal dissection. The treatment instrument for an endoscope includes a treatment portion having a cutting unit at a tip of an insertion portion that is to be inserted into the body. The main unit of the treatment portion is formed in a sawtooth shape having a peak portion and a valley portion. An electrode plate serving as the cutting unit is provided in the valley portion.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: December 29, 2015
    Assignee: JICHI MEDICAL UNIVERSITY
    Inventor: Hironori Yamamoto
  • Patent number: 9216030
    Abstract: A laparoscopic forceps comprising a handpiece including a distal end portion; a tubular member protruding from the distal end portion of the handpiece, the tubular member having a distal end with a distal opening, a pair of jaws having legs that are disposed within the tubular member and partially protruding from the distal opening, the jaws and the tubular member being movable relative to each other; wherein each of the jaws has an arcuate section; an operable mechanism for creating relative motion between the jaws and the tubular member along a direction parallel to the longitudinal axis, and one or more spacing members extending across the distal opening of the tubular member and between the jaws; wherein the jaws are closable by the relative movement of the tubular member and the jaws towards each other so that the tubular member advances over the arcuate section of the jaws, and the jaws are openable by the relative movement of the tubular member and the jaws away from each other so that the one or more
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: December 22, 2015
    Assignee: GYRUS ACMI, INC.
    Inventors: Tailin Fan, Kester Batchelor, John R. Mensch, Richard A. Thompson
  • Patent number: 9204889
    Abstract: This invention relates to surgical instruments for applying energy to tissue using a vapor-to-liquid phase transition which delivers large amount of energy to the targeted tissue. In one embodiment, the system is configured for volumetric removal of tissue by means of high velocity ejection of a vapor media from a first vapor port proximate to soft tissue wherein the vapor-to-liquid phase change of the media applies energy to the tissue. The system provides a second port coupled to a suction source that cooperates with the first vapor port to suction tissue debris from the targeted site.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 8, 2015
    Assignee: Tsunami MedTech, LLC
    Inventor: John H. Shadduck