Tip In Electrical Circuit Patents (Class 606/29)
  • Patent number: 10828105
    Abstract: A system for assisting a surgeon in placing at least one ablation device into a treatment region of a patient, where the system includes at least one computer system having a display, a user interface and software, is described. The system uses patient image data of the treatment region to generate an image of the treatment region on the display and identifies the treatment region to ablate with a target. Tissue properties of the treatment region are identified and used to perform thermal modeling. Treatment parameters are generated and an ablation zone is calculated. A computer system display is generated showing (a) the number of ablation devices required to ablate the treatment region and the location and orientation of each ablation device in the treatment region and (b) the ablation zone.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: November 10, 2020
    Assignee: Endocare, Inc.
    Inventors: Alind Sahay, Robert J. Riker, Cristian Atria
  • Patent number: 10758683
    Abstract: A drug delivery system includes a reservoir and a drug delivery device coupled to the reservoir. The drug delivery device also may include at least one temperature-sensitive component and a lock having locked and unlocked states. The system further includes an output device, and a controller coupled to the lock and the output device. The controller may also include a temperature sensor, or may be coupled to the temperature sensor. The controller is programmed or configured to determine if the temperature of a drug in the reservoir or of the temperature-sensitive component exceeds an upper limit or is below a lower limit, and to activate the lock in either event. The controller is also programmed or configured to determine, directly or indirectly, if the temperature subsequently is between the upper and lower limits, and to unlock lock as a consequence.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: September 1, 2020
    Assignee: AMGEN INC.
    Inventors: Scott R. Gibson, Mark Ka Lai Lee, Donald Busby, Stephanie Toy, Suhas Krishna, Francisca Tan-Malecki, Ferry Tamtoro
  • Patent number: 10736689
    Abstract: A non-implantable minimally invasive system for treatment of tissue in a body via direct current ablation is provided. A low-corrosion electrode for use with such system is further provided. In one embodiment the electrode includes a catheter end configured for coupling to a catheter, a tip configured for puncturing the tissue, and a length extending between the catheter and the tip. The length includes an active portion and an insulated portion. The active portion is electrically conductive and is between approximately 3 mm and approximately 12 mm long at an inserted portion of the electrode. The length further comprises an inner core formed of a material having a high resistance to deformation and an outer shell formed of a material having a high resistance to material decomposition.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: August 11, 2020
    Assignee: Prostacare Pty Ltd
    Inventors: Stephen K. Sundquist, Michael C. Holtz, Benjamin R. Fruland, Tom A. Nelson, Kai Kroll
  • Patent number: 10722687
    Abstract: A catheter system utilizing one or more sensors is described. The catheter can be used as part of an embolic coil system, guidewire system, or combined embolic coil/guidewire system where the devices interact with the catheter system. A variable detachment embolic coil system and guidewire system are also described.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: July 28, 2020
    Assignee: MicroVention, Inc.
    Inventors: Heath Bowman, Ross Tsukashima
  • Patent number: 10682496
    Abstract: A medical instrument includes first and second knobs. The first knob is fitted on a handle of the medical instrument, and is movable along a longitudinal axis of the medical instrument to control a deflection of a medical device coupled to a distal end of the medical instrument relative to the longitudinal axis. The second knob is fitted on the handle of the medical instrument, and is movable along the longitudinal axis to control a shape of the medical device.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 16, 2020
    Assignee: Biosense Webster (Israel) Ltd.
    Inventors: Christopher T. Beeckler, Joseph T Keyes, Kevin J. Herrera, Athanassios Papaioannou
  • Patent number: 10674963
    Abstract: A system for controlled neuromodulation procedures is disclosed. A system for controlled micro ablation procedures is disclosed. Systems and methods for imaging, monitoring, stimulating, and/or ablating neurological structures coupled to one or more organs of the lower urinary tract (LUT) are disclosed. Such processes may be used to alter the hormonal secretions from one or more organs, to modulate the growth of an organ, alter the growth rate or rate of perineural invasion of a tumor, or the like. In particular such processes may be used to slow, halt and/or reverse the growth of a prostate gland or a prostate tumor.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 9, 2020
    Assignee: Autonomix Medical, INC.
    Inventor: Landy Toth
  • Patent number: 10632287
    Abstract: A steering handle for a catheter. The steering handle includes a thumb knob arrangement for driving a cam assembly that in turn actuates a pull wire or pull wires. In some embodiments, the cam assembly includes a set of dual pins that actuate the pull wire in a quasi-linear relationship between cam rotation and axial displacement of the wire. In certain embodiments, the second set of dual pins imparts a reverse action on a second pull wire, also in quasi-linear fashion. That is, when one wire is released by the cam assembly, the other wire is taken in by the cam assembly. In various embodiments, the quasi-linear action can cause release of more pull wire than is taken in, thereby helping prevent the released pull wire to act as an unwanted counter force to the actuated pull wire.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: April 28, 2020
    Assignee: St. Jude Medical International Holding S.à r.l.
    Inventors: Alexandre Ioan Romoscanu, Timothy J. Wood
  • Patent number: 10603096
    Abstract: A treatment-energy applying structure includes a flexible substrate having a wiring pattern having a heat-generation region and a connection region. A heat transfer plate faces a surface of the flexible substrate, and transfers heat to a body tissue. An adhesive sheet, having heat conductivity, is disposed between the flexible substrate and the heat transfer plate to cover the entirety of the heat-generation region and the heat transfer plate. A region of the adhesive sheet protrudes from the heat transfer plate to cover a region of the connection region. A pair of lead wires connects to the connection region outside of the covered region. The adhesive sheet is longer than the heat transfer plate and shorter than the flexible substrate. A gap between an end of the heat transfer plate and the lead wires is longer than a diameter of the lead wires or a thickness of the heat transfer plate.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: March 31, 2020
    Assignee: Olympus Corporation
    Inventors: Kotaro Nakamura, Shinji Yasunaga
  • Patent number: 10410488
    Abstract: In one example, a connector assembly for providing security to an article of merchandise is provided. The connector assembly includes a cord having a plurality of conductors and a body portion connected to the cord. The connector assembly also includes a connection portion engaged with the body portion and including a plurality of engagement members. Each of the engagement members is electrically connected to a respective conductor in the cord, and the connection portion is configured to engage the article of merchandise to thereby electrically connect the engagement members to one another for establishing a sense loop through the conductors in the cord. Interruption of the sense loop is indicative of a security event.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: September 10, 2019
    Assignee: InVue Security Products Inc.
    Inventors: Jonathon D. Phillips, Gary A. Taylor, Christopher J. Fawcett, Eric Brutke
  • Patent number: 10080600
    Abstract: An elongated electrode includes a proximal conductor, a tubular member, and a treatment portion. The tubular member defines a channel therethrough and has proximal and distal end portions. The proximal end portion receives the proximal conductor within a portion of the channel and defines a hole through an inner and outer surface of the tubular member in fluid communication with the channel. The treatment portion is coupled to the distal end portion of the tubular member and includes a base and an arm extending distally from the base. The base defines a port in fluid communication with the channel of the tubular member. The arm is in electrical communication with the proximal conductor and is configured to deliver electrosurgical energy to tissue.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: September 25, 2018
    Assignee: COVIDIEN LP
    Inventors: Amarsinh D. Jadhav, Mushtaque Syed Ahmed
  • Patent number: 9907605
    Abstract: A medical treatment device to treat and join body tissues, includes at least a pair of holding members which is configured to hold the body tissues to be treated, an energy output portion provided on at least one of the pair of holding members and connected to an energy source to form a joined portion by supplying energy to the body tissues held by the pair of holding members to join the body tissues, and a join condition maintenance assistance portion capable of applying a substance which prevents infiltration of the fluid to the body tissues to be treated to provide assistance so that a joined state of the body tissues is maintained.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: March 6, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomoyuki Takashino
  • Patent number: 9629658
    Abstract: A lead introducer includes an outer needle with a sharpened distal tip and an open channel extending along an entire length of the outer needle. An inner needle slides along the open channel of the outer needle. The inner needle includes a blunt distal tip. A biasing element is coupled to the inner needle and facilitates transition of the inner-needle distal tip between a distally-biased position, where the inner-needle distal tip obstructs the sharpened outer-needle distal tip, and a retracted position, where the inner-needle distal tip exposes the sharpened outer-needle distal tip. A splittable member is disposable over the outer needle when the inner needle is disposed in the open channel of the outer needle. The splittable member is separatable from the inner and outer needles along at least one perforated region.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 25, 2017
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: John Michael Barker
  • Patent number: 9456866
    Abstract: An electrosurgery probe comprises tip, mid-, and electrical contact segments. The mid-segment is a tube open at one end, closed at the other, and an interior flow passage. An opening formed through the wall of the tube adjacent to the closed end of the mid-segment and fluidly communicating with the interior flow passage. An electrosurgery system includes the electrosurgery probe and an electrosurgery handpiece. The handpiece comprises an elongate body segment and an exhaust cap attached to the body segment. A main flow passage extends longitudinally through the handpiece, and a second passage extends longitudinally through a distal portion of the body segment. In use, the probe is removably disposed in the handpiece such that the electrical contact segment is positioned within the second passage and the mid-segment opening is positioned within the exhaust cap and in fluid communication with the main flow passage.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 4, 2016
    Inventor: William J. Zinnanti
  • Patent number: 9387037
    Abstract: An electrosurgical generator for generating radio frequency power, includes a radio frequency output stage having three or more output connections, and one or more sources of radio frequency output power coupled to the output stage. A controller causes the system to supply a first coagulating RF waveform to the output connections or a second cutting RF waveform to the output connections. The first RF waveform is delivered between a first pair of the output connections, and the second RF waveform is delivered between a second pair of the output connections. In a first mode of operation the controller supplies the first coagulating RF waveform, and in a second subsequent mode of operation the controller supplies the second cutting RF waveform for a first predetermined period of time followed by the first coagulating RF waveform for a second predetermined period of time, both periods being in excess of 1 second.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: July 12, 2016
    Assignee: GYRUS MEDICAL LIMITED
    Inventor: Teo Heng Jimmy Yang
  • Publication number: 20150094706
    Abstract: The present embodiments enable the length and/or diameter of the heating segment of a medical treatment device to be adjusted on the fly during a treatment procedure, without a need to interrupt the procedure, thus allowing a single catheter to be used at different locations in a hollow anatomical structure.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Jiun Keat Ong, Chunlang Hong, Li Wang
  • Publication number: 20150094704
    Abstract: The present embodiments enable the length and/or diameter of the heating segment of a medical treatment device to be adjusted on the fly during a treatment procedure, without a need to interrupt the procedure, thus allowing a single catheter to be used at different locations in a hollow anatomical structure.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Chunlang Hong, Li Wang, Jiun Keat Ong
  • Publication number: 20150094705
    Abstract: The present embodiments enable the length and/or diameter of the heating segment of a medical treatment device to be adjusted on the fly during a treatment procedure, without a need to interrupt the procedure, thus allowing a single catheter to be used at different locations in a hollow anatomical structure.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Li Wang, Chunlang Hong, Jiun Keat Ong
  • Patent number: 8986294
    Abstract: Methods and apparatus are provided for thermally-induced renal neuromodulation. Thermally-induced renal neuromodulation may be achieved via direct and/or via indirect application of thermal energy to heat or cool neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers. In some embodiments, parameters of the neural fibers, of non-target tissue, or of the thermal energy delivery element, may be monitored via one or more sensors for controlling the thermally-induced neuromodulation. In some embodiments, protective elements may be provided to reduce a degree of thermal damage induced in the non-target tissues.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: March 24, 2015
    Assignee: Medtronic Ardian Luxembourg S.a.rl.
    Inventors: Denise Demarais, Nicolas Zadno, Benjamin J. Clark, Erik Thai, Howard R. Levin, Mark Gelfand
  • Patent number: 8961503
    Abstract: A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 24, 2015
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Liming Lau, Arnold M. Escano, Jerry Jarrard, Sam Ho, Ryan C. Abbott, Arthur M. Lin, Jesse McQuiston, Peter L. Callas, Geoffrey H. Willis, Michael C. Stewart, Kimberly D. Barkman, Joseph N. Lamberti, Kenny L. Dang
  • Publication number: 20150045783
    Abstract: Methods of using hardware (e.g., bone screws, anchors or other devices) previously inserted within the body to facilitate energy delivery are disclosed. The energy delivery (e.g., thermal energy) may be used for neuromodulation (such as stimulation or denervation), tissue heating and ablation, curing, and other applications in the spine and non-spine orthopedic locations.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventor: Avram Allan Edidin
  • Patent number: 8936631
    Abstract: A method of performing therapy on tissue using a medical apparatus. The apparatus includes a shaft configured for insertion into a hollow anatomical structure (HAS) and has a tissue sensor and a therapeutic energy application device both located on the shaft. The method comprises: receiving electrical power at a first power level and directing the first-level power to the tissue sensor and not to the therapeutic energy application device, thereby enabling tissue sensing with the tissue sensor; receiving electrical power at a second power level higher than the first-level power; and, in response to receipt of the second-level power, directing the second-level power to the therapeutic energy application device, thereby enabling performance of therapy on the tissue with the therapeutic energy application device. Additional methods and apparatus are disclosed as well.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: January 20, 2015
    Assignee: Covidien LP
    Inventors: Hoa D. Nguyen, Arthur W. Zikorus, Stephen W. Lee
  • Patent number: 8932279
    Abstract: A cooling system for a surgical handpiece may provide fluid flow to the surgical tip and to the internal electronic components to prevent temperatures that may damage or make the patient or surgeon uncomfortable. Tip directed gas further controls the tip-tissue interface by displacing blood or serum from the incision point, increasing precision and diminishing coagulum build-up. In the alternative, cooling fluid may be used to quench tissue being treated.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: January 13, 2015
    Assignee: Domain Surgical, Inc.
    Inventors: Mark Stringham, Preston Manwaring, Kim Manwaring, Philip Eggers
  • Patent number: 8894638
    Abstract: A surgical apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: November 25, 2014
    Assignee: MAQUET Cardiovascular LLC
    Inventors: Liming Lau, Arnold M. Escano, Jerry Jarrard, Sam Ho, Ryan C. Abbott, Arthur M. Lin, Jesse McQuiston, Kenny L. Dang
  • Publication number: 20140316396
    Abstract: Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and/or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and/or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventors: Scott J. WOLF, Andrew Frazier
  • Publication number: 20140303610
    Abstract: Methods and systems for treating tissue that employ a radiometer for temperature measurements and use feedback from the radiometer to regulate energy being applied to the tissue are provided. For example, methods and systems are provided for calculating temperature based on signal(s) from a radiometer, which may provide useful information about tissue temperature at depth, and automatically regulating energy applied to the tissue based on the tissue temperature.
    Type: Application
    Filed: May 9, 2014
    Publication date: October 9, 2014
    Applicant: Advanced Cardiac Therapeutics, Inc.
    Inventors: John McCarthy, Timothy J. Lenihan, Eric R. Kanowsky
  • Publication number: 20140303609
    Abstract: A surgical device is provided for use in pediatric surgery and includes a dissection blade moveably mounted in a sheath of the surgical device. The surgical device includes an electrical connection for supply cauterizing current to the blade. A handle assembly is provided and includes an advancement mechanism for incrementally advancing the blade out of the sheath and a lever to release the blade from the advancement mechanism. A lock member is provided to maintain the blade in an extended condition.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: Covidien LP
    Inventors: Stanislaw Marczyk, Christopher Switalski, Russell Pribanic
  • Patent number: 8852178
    Abstract: A working end of a catheter includes at least one therapeutic element, such as a resistive heating element, usable to deliver energy for ligating, or reducing the diameter of, a hollow anatomical structure. In certain examples, the catheter includes a lumen to accommodate a guide wire or to allow fluid delivery. In certain embodiments, a balloon is inflated to place resistive element(s) into apposition with a hollow anatomical structure and to occlude the structure. Indexing devices and methods are also disclosed for successively treating portions of the hollow anatomical structure. In certain examples, marks along the catheter shaft provide visual verification to the physician of the relative position of the therapeutic element of the catheter. Embodiments of indexing devices may include pairs of rings and/or hinged arms that move a catheter a desired indexed position between successive treatments.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: October 7, 2014
    Assignee: Covidien LP
    Inventors: Russell Blake Thompson, Brady David Esch, Vijay Kumar Dhaka, Fiona Maria Sander
  • Patent number: 8845630
    Abstract: The invention provides a system and method for percutaneous energy delivery in an effective, manner using one or more probes. Additional variations of the system include array of probes configured to minimize the energy required to produce the desired effect.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: September 30, 2014
    Assignee: Syneron Medical Ltd
    Inventors: Bankim H. Mehta, Scott A. McGill, Daryl Bordon
  • Publication number: 20140276717
    Abstract: A plasma instrument is disclosed. The plasma instrument includes an elongated body defining a first lumen therethrough, the lumen being in fluid communication with an ionizable media source; an applicator tip coupled to a distal end of the elongated body and disposed within the first lumen, the applicator tip defining a second lumen in fluid communication with the first lumen; a first electrode disposed on an outer surface of the applicator tip; and a second electrode disposed within at least one of the first lumen or the second lumen, wherein the first and second electrodes are configured to be energized to ignite ionizable media supplied by the ionizable media source.
    Type: Application
    Filed: February 3, 2014
    Publication date: September 18, 2014
    Applicant: COVIDIEN LP
    Inventors: LOGAN C. WAN, JOE D. SARTOR
  • Patent number: 8814854
    Abstract: Various embodiments of a capsulotomy repair device include a resistive-heating element comprising an electrically resistive, superelastic wire forming a loop between first and second ends of the superelastic wire. The first and second ends of the loop may at least partially extend at an angle from a planar face defined by the loop, to an insulating portion, to form a transitional neck between the loop and the insulating portion. The capsulotomy repair device may be positioned in the eye relative to a capsularhexis perimeter to overlap tears in the capsularhexis perimeter to remove the tears by forming an adjusted capsularhexis perimeter by burning around the tear.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: August 26, 2014
    Assignee: Alcon Research, Ltd.
    Inventors: Guangyao Jia, Glenn R. Sussman
  • Publication number: 20140207132
    Abstract: A treatment system includes a treatment instrument that has a pair of freely openable/closable holding sections for applying thermal energy generated by a heat generation section to a living tissue LT held between the holding sections, a signal output section that supplies an alternating current drive signal to the heat generation section, a setting section that sets a target temperature of the heat generation section, a signal detection section that detects a current and a voltage of the drive signal, a control section that controls a temperature of the heat generation section by adjusting power of the drive signal, a signal extraction section that extracts a direct current component from the drive signal detected by the signal detection section and a fault detection section that detects a precursory phenomenon of a fault of the heat generation section based on the extracted signal extracted by the signal extraction section.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Yoshitaka HONDA, Takashi IRISAWA, Sadayoshi TAKAMI, Toshifumi KATSURAGI, Kazue TANAKA
  • Patent number: 8753381
    Abstract: An apparatus for determining a thermal property of tissue includes a base unit with one or more energy source and at least two, preferably detachable, leads. The distal end of each lead, which is introduced into the tissue to be treated, has at least two longitudinally spaced temperature measuring elements to measure surrounding tissue temperature and at least two longitudinally spaced electrode surfaces for applying current to the tissue. Each distal end is also provided with an element which uses energy emitted by the sources of energy to heat up the surrounding tissue. The base unit has computing elements, current generating elements for generating an alternating current, and conductance determining elements for determining the tissue conductance between pairs of electrode surfaces based on the alternating current applied by the current generating elements to the tissue. Methods for using the device and leads for use in the device are also described.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: June 17, 2014
    Assignee: Clinical Laserthermia Systems AB
    Inventors: Par Hakan Henriksson, Karl-Goran Tranberg
  • Publication number: 20140142561
    Abstract: A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another and fully engage with one another when engaged.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 22, 2014
    Applicant: Caymus Medical, Inc.
    Inventors: Gene Reu, Brad M. Kellerman, David K. Wrolstad
  • Patent number: 8727983
    Abstract: A catheter-based medical device includes a catheter that is configured and arranged for at least partial insertion into a patient and that defines at least one lumen that is configured and arranged to receive a first fluid. A conductive-fluid detector is coupled to the at least one lumen and is configured and arranged to detect when a second fluid is disposed within the at least one lumen that is more conductive than the first fluid. The conductive-fluid detector includes a plurality of axially-positioned bodies, each body defining a lumen. The lumens of the axially-positioned bodies are aligned to form a shared lumen in fluid communication with the at least one lumen of the catheter. Spaced apart electrodes are disposed within the shared lumen.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: May 20, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Charlotte F. Kinnison
  • Patent number: 8728076
    Abstract: A surgical apparatus for coagulating and cutting tissue includes a handle assembly and a tool cartridge. The tool cartridge includes electrically conductive movable tools, such as jaws and a blade, for cutting tissue. The jaws and blade each are connected to a transmission to facilitate movement. Multiple sheaths are used to encompass and protect the transmissions. Slidable grips are disposed outside of the sheaths and operatively connected to the transmissions that are disposed within the sheaths. At least one lever is supported by the handle assembly and engagable with the grips to facilitate movement of the grips, and thus, the tools.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 20, 2014
    Assignee: Bovie Medical Corporation
    Inventor: Steve Livneh
  • Patent number: 8721634
    Abstract: A working end of a catheter includes at least one therapeutic element, such as a resistive heating element, usable to deliver energy for ligating, or reducing the diameter of, a hollow anatomical structure. In certain examples, the catheter includes a lumen to accommodate a guide wire or to allow fluid delivery. In certain embodiments, a balloon is inflated to place resistive element(s) into apposition with a hollow anatomical structure and to occlude the structure. Indexing devices and methods are also disclosed for successively treating portions of the hollow anatomical structure. In certain examples, marks along the catheter shaft provide visual verification to the physician of the relative position of the therapeutic element of the catheter. Embodiments of indexing devices may include pairs of rings and/or hinged arms that move a catheter a desired indexed position between successive treatments.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: May 13, 2014
    Assignee: Covidien LP
    Inventors: Brady David Esch, Radit Tantisira, Russell Blake Thompson, Brian Eugene Farley, Jeffrey J. Christian
  • Publication number: 20140094786
    Abstract: A medical device for treating tissue includes a tissue-contacting surface and a solid state heating element that is thermally coupled to the tissue-contacting surface. The solid state heating element is configured to generate heat to thermally treat tissue.
    Type: Application
    Filed: September 18, 2013
    Publication date: April 3, 2014
    Applicant: COVIDIEN LP
    Inventors: CRAIG A. KELLER, ROBERT B. SMITH
  • Patent number: 8657813
    Abstract: A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool, and a slidable shaping element. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a full circular, extended configuration, by pressing the shaping element against both joints of the bands, allowing a capsulotomy by applying an electrical pulse to the burning element.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: February 25, 2014
    Assignee: Valens Associated Inc.
    Inventors: Joshua Ben-Nun, Adam Lerer
  • Publication number: 20140052117
    Abstract: Low profile devices and methods for delivering fluid enhanced ablation therapy are provided herein. In one embodiment, an ablation device is provided that includes an elongate body having proximal and distal ends, an inner lumen extending therethrough and at least one outlet port formed therein and configured to deliver fluid to surrounding tissue. The device can also include at least one ablation element disposed along a length of the body adjacent to the at least one outlet port and configured to deliver energy to surrounding tissue, as well as at least one heating element disposed within the inner lumen of the elongate body. The device further includes a handle having proximal and distal ends, the distal end of the handle being coupled to the proximal end of the elongate body. Further, a longitudinal axis of the elongate body extends at an angle to a longitudinal axis of the handle.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 20, 2014
    Applicant: THERMEDICAL, INC.
    Inventor: Michael G. Curley
  • Publication number: 20140039478
    Abstract: A device for extending, elongating, or repairing a previously created arteriovenous fistula between a first blood vessel and an adjacent second blood vessel includes a main body having a primary lumen and an articulating jaw member disposed at the distal end of the main body. The jaw member is configured with two elements to allow rotation of one element about a pivot point to grasp tissue while being rotated. The jaw member is also configured to allow thermal energy delivery to one or both elements of the jaw member that allow tissue welding and cutting with DC, RF, Laser or Ultrasonic energy. A second lumen located within one element of the jaw member is configured to allow advancement over a guidewire into the second vessel while the other element of the jaw member remains within the first blood vessel at the position where the arteriovenous fistula, or aperture, exists between the first and second blood vessel.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 6, 2014
    Applicant: Caymus Medical, Inc.
    Inventors: Jeffrey E. Hull, Mark A. Ritchart
  • Publication number: 20140018605
    Abstract: Medical methods and systems are provided for effecting lung volume reduction by selectively ablating segments of lung tissue.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 16, 2014
    Applicant: Pulmonx Corporation
    Inventors: Peter P. Soltesz, Nikolai Aljuri, Ajit Nair
  • Publication number: 20140018786
    Abstract: Disclosed herein are high efficiency surgical devices and methods of using same using radio frequency (RF) electrical power and/or electrically heated filaments to destroy tumors, form lesions, denaturize, desiccate, coagulate and ablate soft tissues, as well as to drill, cut, resect and vaporize soft tissues. According to the principles of this invention, the electrosurgical instruments can be used with externally supplied conductive or non-conductive liquids, as well as without externally supplied liquids, a mode of operation often referred to as “dry field” environment.
    Type: Application
    Filed: May 30, 2013
    Publication date: January 16, 2014
    Applicant: ElectroMedical Associates LLC
    Inventors: Robert A. VAN WYK, Yuval CARMEL, Anatoly SHKVARUNETS
  • Publication number: 20140012246
    Abstract: An electrical conductor, such as a wire or catheter, which is coated circumferentially with a ferromagnetic material in a selected region, is fed from a high frequency alternating current source. The ferromagnetic material has a quick response in heating and cooling to the controllable power delivery. The ferromagnetic material can be used for separating tissue, coagulation, tissue destruction or achieving other desired tissue effects in numerous surgical procedures.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 9, 2014
    Applicant: DOMAIN SURGICAL, INC.
    Inventor: Domain Surgical, Inc.
  • Publication number: 20140012245
    Abstract: An energy delivering probe is used for thermally coagulating and/or constricting hollow anatomical structures (HAS) including, but not limited to, blood vessels such as perforator veins. The probe includes a shaft and an energy source.
    Type: Application
    Filed: December 21, 2012
    Publication date: January 9, 2014
    Applicant: COVIDIEN LP
    Inventor: COVIDIEN LP
  • Patent number: 8623003
    Abstract: A surgical apparatus for welding and severing tissue includes first and second elongated jaws, at least one of the jaws movable with respect to the other, and a first heating element and a second heating element, wherein the first heating element is adapted to weld tissue and the second heating element is adapted to sever tissue.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: January 7, 2014
    Assignee: Maquet Cardiovascular LLC
    Inventors: Liming Lau, Arthur M. Lin, Samnuel Ho, Ryan C. Abbott, Kenny L. Dang, Jesse McQuiston, Arnold M. Escano, Jerry Jarrard
  • Publication number: 20140005651
    Abstract: A catheter assembly for implanting a medical device, comprising a first wire and a second wire, electrically insulated from each other, attached to the medical device at a first attachment point and a second attachment point, respectively. The first wire defines a first region susceptible to electrolytic disintegration, by passing an electric current through it, contiguous to a the first attachment point. Similarly, and the second wire defines a second region susceptible to electrolytic disintegration, by passing an electric current through it, contiguous to the second attachment point. Also, there is a separately controllable electric supply for the first and the second wire, so that the first wire may be disconnected from the medical device, without disconnecting the second wire.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 2, 2014
    Inventor: Joe Michael Eskridge
  • Publication number: 20130338658
    Abstract: A surgical cautery device, system, and method of use may apply bipolar and/or sesquipolar electrocautery to target tissue via a pair of instruments with other primary surgical functions. The surgical cautery device and system may include first and second elements capable of forming an electrical circuit. The second element may be independently positionable with respect to the first element. The first and second elements may also include a surgical component with an independent surgical function. Exemplary surgical components include a rotary blade, a cutting tool, a grasper tool, a micro-scissors tool, a micro-grasping forceps tool, a dissector, a micro-dissector, curette, and a suction cannula. On some occasions, one of the surgical components may be interchangeable with another surgical component.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 19, 2013
    Inventor: Gabriel Zada
  • Patent number: 8608734
    Abstract: An array advancing device that attaches to a tissue ablation probe comprises a housing sized for receiving the handle and reciprocating plunger of the ablation probe, the housing having a proximal section configured to engage the plunger, and a distal section configured to engage the handle, the proximal housing section being controllably moveable relative to the distal housing section to thereby controllably move the plunger relative to the handle.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 17, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Robert F. Rioux, Jeffery V. Bean
  • Publication number: 20130331830
    Abstract: An electrosurgical dissection apparatus is disclosed, and includes a thermally insulating body, a thermally conductive insert, at least one active electrode, and at least one return electrode. The at least one active electrode is disposed on the thermally conductive insert, and the at least one return electrode is spaced from the at least one active electrode by a portion of the thermally insulating body. The thermally conductive insert is configured to cauterize tissue dissected by radiofrequency energy passing from the at least one active electrode to the at least one return electrode.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 12, 2013
    Applicant: COVIDIEN LP
    Inventors: RONALD J. PODHAJSKY, KRISTEL L. AMBROSIUS
  • Publication number: 20130317492
    Abstract: A medical for removing tissue from a patient includes an elongated probe with a working end. A pair of jaws is provided at the working end. The jaws may be closed for cutting and treatment of the tissue. Cutting may be effective through a sharpened cutting blade, and RF cutting blade, and similar cutting edges. The tissue may be remodeled using heat generated from passive heating elements on the jaws, active heating elements on the jaws, a PTCR heating element carried by the jaws, or resistive heaters on the jaws.
    Type: Application
    Filed: November 14, 2012
    Publication date: November 28, 2013
    Applicant: ARQOS Surgical, Inc.
    Inventors: Csaba Truckai, Aaron Germain, John H. Shadduck