Patient Protection From Electric Shock Patents (Class 128/908)
  • Patent number: 10431032
    Abstract: In order to monitor the number of plug cycles of a plug, such as a plug of a charging cable for an electric car, a plug cycle counter associated with the plug is counted up in an electronic memory after every plug cycle. A warning can thus be issued when a permitted quantity of plug cycles for the plug has been exceeded. Alternatively, the electrical connection at a charging station for an electric car or at a data cable for an automation system can also be cut off if the service life of the plug has been exceeded. High availability of the plug is thereby achieved, because the corresponding cable can be replaced in a timely manner. A hazard to persons due to defective current-carrying parts is also prevented.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: October 1, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Rainer Falk
  • Patent number: 10405765
    Abstract: A data acquisition system for use with expandable ECG electrode systems. The data acquisition system includes a main unit and one or more expansion units for increasing the number of ECG leads applied to a patient for enhanced monitoring capabilities. Multiple embodiments are illustrated for providing a common mode signal between the main electrode unit and expansion units without requiring the physical transmission of voltage potential between the main unit and the expansion unit. In one embodiment, the main unit and the expansion unit share a common ground reference potential. In a second embodiment, an optical signal is transmitted between the main unit and the extension unit to relay the common mode information while in a third embodiment, common electrode potentials are provided to both the main unit and the extension unit for constructing their own common reference signal.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: September 10, 2019
    Assignee: General Electric Company
    Inventors: Robert Filip Arnold Santala, Ville Petteri Vartiovaara, Juha Petri Virtanen
  • Patent number: 10379181
    Abstract: Various methods and systems are provided for a common mode trap for a magnetic resonance imaging (MRI) apparatus. In one embodiment, a common mode trap for an MRI apparatus comprises: a first conductor and a second conductor counterwound around a length of a central conductor, wherein the first and the second conductors are radially spaced a first distance from the central conductor at first and second ends of the length, and wherein the first and the second conductors are radially spaced a second distance larger than the first distance from the central conductor at a midpoint of the length. In this way, coupling and subsequent detuning of common mode traps provided adjacent to one another may be prevented.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 13, 2019
    Assignee: General Electric Company
    Inventors: Victor Taracila, Robert Steven Stormont, Fraser John Laing Robb
  • Patent number: 10371734
    Abstract: Medical devices and methods for making and using the same are disclosed. An example medical device may include a control unit for determining an electrical leakage between a first electrode pad and a second electrode pad of an in vivo medical device. The first electrode pad may be spaced from the second electrode pad. The first electrode pad may have an active electrode and a spaced ground electrode. The second electrode pad may have an active electrode and a ground electrode. The ground electrode of the first electrode pad may be electrically connected to the ground electrode of the second electrode pad.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: August 6, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Prabodh Mathur
  • Patent number: 10292752
    Abstract: Surgery systems and methods for providing vibration feedback are disclosed. A surgery system includes an electrocautery tool, a current sensor, and an actuator. The current sensor is coupled to the electrocautery tool to sense a current through the electrocautery tool indicative of an electrocautery action being performed with the tool. The actuator is in communication with the current sensor and is configured to provide a vibration to an operator of the electrocautery tool when the current sensor senses the current through the electrocautery tool indicative of the electrocautery action. A surgical method includes sensing a current through an electrocautery tool indicative of an electrocautery action being performed with the tool, and actuating an actuator to provide a vibration to an operator of the electrocautery tool when the current sensor senses the current through the electrocautery tool indicative of the electrocautery action.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 21, 2019
    Inventors: Anna Brzezinski, Katherine J. Kuchenbecker, Ernest D. Gomez, Nicole Blumenfeld, Brian H. Horwich, Zachary E. Shurden
  • Patent number: 10271753
    Abstract: A device for detecting, monitoring and optionally recording ECG signals is disclosed. The device has at least two electrodes and an on-board memory. The electrodes can be recoatable and/or replaceable. The device can be charged wirelessly through the electrodes or by an internal energy harvesting system. A power saving mode is provided whereby the electrodes are activated by a pre-defined tapping pattern of electrical contact applied by a user and, upon activation, the device starts pairing with and transmitting ECG signals to a receiving station, e.g. a computer, a smart phone, a tablet or the like.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: April 30, 2019
    Assignee: Medical Wearable Solutions Ltd.
    Inventors: Vahid Sahiholnasab, Edmond Zahedi, Mohamadtaghi Katanbaf Nezhad, Hossein Sahiholnasab
  • Patent number: 10252049
    Abstract: A method and system of providing therapy to a patient implanted with an array of electrodes is provided. A train of electrical stimulation pulses is conveyed within a stimulation timing channel between a group of the electrodes to stimulate neural tissue, thereby providing continuous therapy to the patient. Electrical parameter is sensed within a sensing timing channel using at least one of the electrodes, wherein the first stimulation timing channel and sensing timing channel are coordinated, such that the electrical parameter is sensed during the conveyance of the pulse train within time slots that do not temporally overlap any active phase of the stimulation pulses.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 9, 2019
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Jordi Parramon, Emanuel Feldman, Jess Weiqian Shi
  • Patent number: 10244292
    Abstract: A method for operating a bioelectric differential measurement arrangement includes detecting a bioelectric measurement signal. The bioelectric measurement signal includes a bioelectric useful signal and an interference signal. The method also includes detecting the interference signal by a common-mode current measurement by the bioelectric differential measurement arrangement.
    Type: Grant
    Filed: October 1, 2016
    Date of Patent: March 26, 2019
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventor: Ulrich Batzer
  • Patent number: 10213614
    Abstract: A device uses cold plasma to treat cancerous tumors. The device has a gas supply tube with a delivery end. The gas supply tube is configured to carry a gas to the delivery end. A syringe is provided having an opening. The syringe is connected to the supply tube and configured to carry the gas to the opening. A first electrode is positioned inside said syringe, and a second electrode is positioned adjacent to the opening. The first and second electrodes excite the gas to enter a cold plasma state prior to being discharged from the opening of the syringe. An endoscopic tube can be used instead of the syringe. An exhaust tube can be provided to remove gas introduced into the body cavity by the cold plasma jet.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 26, 2019
    Assignee: U.S. Patent Innovations, LLC
    Inventors: Michael Keidar, Charanjeet Guron, Barry Trink, Alexey Shashurin
  • Patent number: 10203357
    Abstract: A system includes an electrically conductive handle, a detector, and a controller. The electrically conductive handle is configured to move along a fixed handle path relative to a floor. The detector is electrically coupled to the handle and is configured to detect at least one of a voltage or an electrical charge at the handle during movement of the handle relative to the floor along the handle path. The controller is configured to initiate an event based upon the voltage or charge detected at the handle during movement of the handle relative to the floor along the handle path.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: February 12, 2019
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Kevin Scott Duncan, Dale Parkin
  • Patent number: 10175096
    Abstract: Some surgical instruments become partially or fully disabled at a device firmware level after being used in a surgical procedure in order to prevent overuse or abuse of the surgical instrument that could create patient safety concerns. A reconditioning device may be used by the end user of such a surgical instrument to perform diagnostics and reconditioning of the surgical instrument so that the surgical instrument may be placed back into service without the direct intervention of the manufacturer. The reconditioning device provides power to the surgical instrument, analyzes device usage history, activates and tests the surgical instrument cutting and gripping functions, and measures electrical characteristics and mechanical characteristics of the surgical instrument. Gathered data is used to determine if the surgical instrument may be safely reconditioned for further use. If reconditioning is possible, the device will be reconfigured for safe use, reactivated, and then sterilized for subsequent re-use.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 8, 2019
    Assignee: Ethicon LLC
    Inventor: Benjamin D. Dickerson
  • Patent number: 10166003
    Abstract: The invention generally relates to intravascular ultrasound imaging and to systems and methods to improve line density and image quality. The invention provides an intravascular imaging system that uses a clock device to provide a set of trigger signals for each revolution of the imaging catheter and capture various patterns of scan lines for each set of trigger signals. The system can be operated to capture two scan lines of data for each trigger signal thereby doubling scan line density compared to existing systems. The clock device can be provided by hardware, such as a rotary encoder, that is configured to define a maximum number of trigger signals that the module can provide per rotation of the catheter.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: January 1, 2019
    Assignee: VOLCANO CORPORATION
    Inventors: Jerome Mai, Andrew Hancock
  • Patent number: 10123833
    Abstract: An electrosurgical energy delivery apparatus includes an energy delivery circuit, a control circuit and an energy-harvesting system with a plurality of energy-harvesting circuits and a voltage regulator that provides a regulated DC voltage to the energy delivery circuit and/or the control circuit. The energy delivery circuit receives an electrosurgical energy signal having a primary frequency and selectively provides the electrosurgical energy signal to an energy delivery element. The control circuit connects to the energy delivery circuit and selectively enables the flow of electrosurgical energy to the energy delivery element. The plurality of energy-harvesting circuits each include an energy-harvesting antenna tuned to a particular frequency, a matched circuit configured to receive an RF signal from the energy-harvesting antenna, rectify the RF signal and generate a DC signal, and an energy storage device that connects to the voltage regulator to receive and store the DC signal.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: November 13, 2018
    Assignee: COVIDIEN LP
    Inventor: James W. McPherson
  • Patent number: 10071254
    Abstract: Devices, systems, and methods for neuromodulation are provided. For example, a neuromodulation system is disclosed that comprises an implantable neuromodulation module having a photodiode configured to generate electrical current in response to receiving light from an optical fiber; an optical transceiver; and at least one electrode configured to provide electrical stimulation to a nerve utilizing the electrical current generated by the photodiode. As another example, a method of neuromodulation is disclosed that comprises receiving light at a photodiode of a neuromodulation module and generating electrical current in response to receiving the light; and providing, via at least one electrode of the module positioned within the patient, electrical stimulation to a nerve of the patient utilizing the electrical current generated by the photodiode.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: September 11, 2018
    Assignee: Zyvex Labs, LLC
    Inventor: Rahul Saini
  • Patent number: 10058263
    Abstract: Technology for a neural interface is described. The neural interface can include an intracranial electrode grid operable to detect neural activity. The neural interface can include a subcutaneous microelectronic signal processing unit operable to process the neural activity in order to obtain digital neural activity information. The neural interface can include a cable connecting the intracranial electrode grid and the subcutaneous microelectronic signal processing unit. The neural interface can include a wired connector attached to the subcutaneous microelectronic signal processing unit that is operable to transmit the digital neural activity information from the subcutaneous microelectronic signal processing unit to an external signal processing device.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 28, 2018
    Assignee: University of Utah Research Foundation
    Inventors: Sandeep Negi, Rajmohan Bhandari
  • Patent number: 10003331
    Abstract: A semiconductor device according to one embodiment includes a first normally-off type transistor including a first source, a first drain, a first gate, and a first body diode, a second normally-off type transistor including a second source connected to the first source, a second drain, a second gate connected to the first gate, and a second body diode, a normally-on type transistor including a third source connected to the first drain, a third drain, and a third gate connected to the second drain, and a diode including an anode connected to the second drain and a cathode connected to the third drain.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 19, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kentaro Ikeda, Hiroshi Mochikawa, Atsuhiko Kuzumaki
  • Patent number: 9949676
    Abstract: A system and method to help maintain quality control and reduce cannibalization of accessories and attached probes in a highly sensitive patient monitor, such as a pulse oximetry system. One or more attached components may have information elements designed to designate what quality control mechanisms a patient monitor should look to find on that or another component or designate other components with which the one component may properly work. In a further embodiment, such information elements may also include data indicating the appropriate life of the component.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: April 24, 2018
    Assignee: Masimo Corporation
    Inventor: Ammar Al-Ali
  • Patent number: 9949782
    Abstract: The method disclosed herein permits the operator of an electrosurgical device to move a safety switch-off threshold for a contact resistance at a neutral electrode from a first value to a second and slightly higher value. This way, for patients with a relatively high resistance yielding a somewhat elevated contact resistance despite correct attachment of the neutral electrode, uninterrupted operation of the device is achievable.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: April 24, 2018
    Assignee: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Martin Hagg, Juergen Beller, Peter Selig
  • Patent number: 9936893
    Abstract: A device for detecting electric potentials includes a plurality of measuring inputs (9) for connecting to measuring electrodes (11), which can be placed on the body of a patient (3), a plurality of measuring amplifiers (Op1, . . . , OpN), and a potential output (27) for connecting to an additional electrode (31), which can be placed on the body of the patient (3), to which a preset voltage can be applied. A summing unit (17) sends a signal, which is an indicator of the mean value of the signals sent by the measuring amplifiers (Op1, . . . , OpN). A current-measuring device (29) sends a current signal, which is proportional to the current flowing through the potential output. An analyzing unit (35) is connected to receive a potential output voltage signal, the summing unit output (19) signal and the current-measuring device signal. The analyzing unit is configured to generate an impedance signal from the fed signals.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 10, 2018
    Assignee: Drägerwerk AG & Co. KGaA
    Inventor: Marcus Eger
  • Patent number: 9933464
    Abstract: A power detector measures RF power delivered into a first load of uncertain impedance. A reference power meter measures power of a reference signal to a second load of known impedance. The reference power meter measures voltage across the second load; measures a current through the second load; and multiplies the measured voltage by the measured current to generate a reference power signal proportional to power delivered to the second load. A measurement power meter measures power of a signal to the first load. The measurement power meter measures voltage across the first load; measures current through the first load; and multiplies the measured voltage by the measured current to generate a measured power signal proportional to power delivered to the first load. The power detector includes a processor to calculate power delivered to the second load, and to generate a power delivered to the first load.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: April 3, 2018
    Assignee: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.
    Inventor: Oleg Popov
  • Patent number: 9935688
    Abstract: The present invention refers to a system for medical treatment comprising a medical device and a separate hand-held device. The medical device comprises an energy-receiving unit and the separate hand-held device comprises a housing and an energy-transfer unit to transfer energy to be used at least in part for performing medical treatment to the energy-receiving unit of the medical device when the energy-receiving unit and the energy-receiving unit are in an energy-transfer position. The system further comprises at least one position sensor adapted to detect at least when the energy-transfer unit and the energy-receiving unit are in the energy-transfer position. The system further comprises a controller for controlling the energy-transfer unit such that the transfer of energy needed for medical treatment from the energy-transfer unit to the energy-receiving unit is enabled only when the energy-transfer unit and the energy-receiving unit are in the energy-transfer position.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 3, 2018
    Assignee: MEDIRIO S.A.
    Inventor: Irio Giuseppe Calasso
  • Patent number: 9895533
    Abstract: Embodiments described herein include a controller (22). The controller includes at least one interface (62) that couples the controller to stimulation circuitry (24), which includes a pair of electrodes (26a, 26b), and to measuring circuitry, and further includes controller circuitry (64). While the electrodes are coupled to skin (60) of a subject, the controller circuitry, via the interface, drives the stimulation circuitry to (i) pass a plurality of stimulating pulses (32) between the electrodes, and (ii) pass one or more reference pulses (34) between the electrodes, the reference pulses being different from each of the stimulating pulses. The controller receives, from the measuring circuitry, an impedance between the electrodes that is measured using the reference pulses. In response to the impedance measured using the reference pulses, but not in response to any impedance measured using the stimulating pulses, the controller circuitry controls the stimulation procedure.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: February 20, 2018
    Assignee: THERANICA BIO-ELECTRONICS LTD.
    Inventors: Amnon Harpak, Uzi Hizi
  • Patent number: 9724508
    Abstract: Disclosed is an improved external cable box assembly and external trial stimulator (ETS) for use with an implantable medical device. The improved external cable box assembly has memory and logic circuitry embedded in it which allows the cable box to be identified. Associated logic circuitry in the improved ETS allows the ETS to read and write characteristics—such as electronic identifiers or cable addresses—of the external cable box assemblies and to store the values of those characteristics in its memory, associating characteristic values with each of its ports. If the external cable box assemblies become unplugged from the ETS and then are reconnected to incorrect ports on the ETS, logic in the ETS will either alert the patient to swap the port locations of the external stimulation cables, or the ETS will automatically reroute the correct therapy through each port.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: August 8, 2017
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Robert Lamont, Thomas Stouffer
  • Patent number: 9636454
    Abstract: Systems, methods, and devices can detect a dangerous or adverse condition or anticipated condition that indicates an undesirable amount of electric current in a patient-connected tube providing fluid to a patient. The fluid flow to the patient is stopped responsive to the detection. Stoppage of fluid flow to the patient can reduce or prevent electric current in the fluid from reaching a patient, flowing through the patient to ground, and/or continuing to flow through the patient.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: May 2, 2017
    Assignee: NXSTAGE MEDICAL, INC.
    Inventor: Yakov Kogan
  • Patent number: 9636511
    Abstract: An implantable cardioverter defibrillator (ICD) configured to transmit a tissue conduction communication (TCC) signal includes a TCC transmitter module configured to generate the TCC signal and transmit the TCC signal via a plurality of electrodes. The TCC signal comprises a biphasic signal having an amplitude and a frequency, wherein at least one of the amplitude and the frequency are configured to avoid stimulation of tissue of the patient. The TCC transmitter module comprises protection circuitry coupled between a current source and the plurality of electrodes, wherein the protection circuitry is configured to protect the signal generator from an external anti-tachyarrhythmia shock delivered to the patient.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: May 2, 2017
    Assignee: Medtronic, Inc.
    Inventors: James K. Carney, Joseph Ballis, James D. Reinke, Can Cinbis, Kevin P. Kuehn, Mark A. Griebel
  • Patent number: 9622370
    Abstract: The invention relates to a modular arrangement with at least one base module that has a connection module on two different sides in each case and with at least one functional module with at least one connection module. The connection modules of the base module are designed to be rotationally invariant with regard to their mechanical and electrical connections, so a choice of the first or second connection module of the base module can be brought into contact with the connection module of the functional module by rotating the base module.
    Type: Grant
    Filed: December 19, 2015
    Date of Patent: April 11, 2017
    Assignee: Euchner GmbH + Co. KG
    Inventors: Mike Gehrke, Jörg Klaiber
  • Patent number: 9610004
    Abstract: An endoscope apparatus is provided with: a power generating section supplying power to a target circuit of an endoscope; a scope information acquiring section acquiring scope information about the endoscope from the endoscope; a protection circuit provided in association with the power generating section, the protection circuit being capable of operating in a plurality of protection modes; and an operation controlling section controlling the power generating section, and selecting and setting one protection mode from among the plurality of protection modes for the protection circuit, based on the scope information.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: April 4, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Koichiro Tabuchi, Makoto Ono, Hidekazu Shinano, Mitsutaka Nemoto
  • Patent number: 9591199
    Abstract: Provided is a lens apparatus which is communicable with a drive unit including: a movable optical member; and a first communication unit which is communicable with the drive unit, wherein the first communication unit receives an electric power supply different from an electric power supply which supplies an electric power to the drive unit, and wherein the first communication unit is configured to send/receive signals to/from the drive unit in an electrically noncontact manner.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 7, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masayuki Sakamoto
  • Patent number: 9539435
    Abstract: An implantable medical device includes a low-power circuit, a high-power circuit, and a multi-cell power source. The implantable medical device delivers stimulation therapy to cardiac tissue. The cardioversion energy is delivered across through electrodes that are coupled to terminals of the high-power circuit. A protection circuit for protecting the low-voltage circuit components from high voltage pulses includes a first segment coupled to a first of the electrodes and a second segment coupled to a second of the electrodes, the components of the low-voltage circuit being coupled to the transthoracic protection circuit portion, and a reference potential corresponding to a ground potential, wherein the first and second segments of the transthoracic protection circuit portion are coupled to the reference potential in a parallel configuration.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 10, 2017
    Assignee: Medtronic, Inc.
    Inventors: Marshall J Rasmussen, Randolph E Crutchfield, Mark R Boone, Lonny V Cabelka, Kevin P Kuehn, Forrest C. M. Pape
  • Patent number: 9525311
    Abstract: The present invention describes means to intentionally transmit power wirelessly from a portable communication device like a mobile phone, smart-phone, tablet or telephone watch using radio frequency, ultrasound, microwave or laser technologies to power up or charge devices external to the portable communication device. In particular the wireless power transmitter is physically placed inside the portable communication device or coupled to it, in order to have a means to transfer power without wires or cables to other devices. The present invention may be utilized in applications like sensors, implanted devices for medical use, speakers, mouse, keyboard, electrical glasses for 3D viewing, small displays, gadgets in the car, electronic toys and so on.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: December 20, 2016
    Assignee: Nirvanalog Inc.
    Inventor: Paolo Menegoli
  • Patent number: 9468447
    Abstract: A system of limited-use, battery-operated orthopedic power tools, having data collection modules for recording performance characteristics and data analysis modules with algorithms for performing analysis of performance characteristics and providing recommendations for preventative maintenance and repairs.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: October 18, 2016
    Assignee: Insurgical, LLC
    Inventors: Peter M. Aman, Frederick N. Matthews, Matthew F. Jones
  • Patent number: 9244546
    Abstract: Provided is a display device having a viewing angle changing function, which is capable of preventing leakage of information displayed on a display screen even when there is a fault generated in changing the viewing angle. The image display device including a viewing angle changing element capable of changing a wide vision display and a narrow vision display and including a display element is provided with a detection element which detects a fault generated in the viewing angle changing element and a module for changing to a narrow vision display when there is a fault based on a detection value of the detection element. For example, when there is a fault, a transparent heater is operated to heat a liquid crystal layer to set a transparent-scattering changing element to a transparent state and forcibly set the display device to a narrow vision display.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: January 26, 2016
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Koji Mimura, Ken Sumiyoshi
  • Patent number: 9192430
    Abstract: An electrosurgical instrument includes a housing having a treatment portion attached thereto. The treatment portion is adapted to connect to an electrosurgical generator that supplies energy to the electrosurgical instrument. An activation element is included and is disposed in electrical communication with the electrosurgical generator and the treatment portion. The activation element is selectively actuatable to supply energy from the electrosurgical generator to the treatment portion. A time-out device is coupled to the housing and is configured to prevent re-use of the electrosurgical instrument after a pre-determined time limit.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 24, 2015
    Assignee: Covidien LP
    Inventors: Thomas Rachlin, Aaron Willoughby, Robert Sharp, Brian Totte, Jeffrey D. Payne, Jaime Pinon
  • Patent number: 8838205
    Abstract: A robot-guided system to assist orthopaedic surgeons in performing orthopaedic surgical procedures on pre-positioned inserts, including for the fixation of bone fractures, and especially for use in long bone distal intramedullary locking procedures. The system provides a mechanical guide for drilling the holes for distal screws in intramedullary nailing surgery. The drill guide is automatically positioned by the robot relative to the distal locking nail holes, using data derived from only a small number of X-ray fluoroscopic images. The system allows the performance of the locking procedure without trial and error, thus enabling the procedure to be successfully performed by less experienced surgeons, reduces exposure of patient and operating room personnel to radiation, shortens the intra-operative time, and thus reduces post-operative complications.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: September 16, 2014
    Assignee: Mazor Robotics Ltd.
    Inventors: Moshe Shoham, Leo Joskowicz, Charles Milgrom, Ziv Yaniv, Ariel Simkin
  • Patent number: 8777887
    Abstract: In a hemodiafiltration apparatus, a membrane device (2) comprises a blood chamber (3) and a fluid chamber (4) separated by a semipermeable membrane (5). A grounding device (17) is connected to the discharge line by means of a tubular connector (16) made of an electrically-conductive plastic material. The grounding device can disconnect the grounding connection if the leakage current measured on a patient (1) connected to the apparatus exceeds a predetermined value. The apparatus can be classified as Cardiac Floating and, at the same time, causes no disturbances to an electrocardiograph connected to the patient.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: July 15, 2014
    Assignee: Gambro Lundia AB
    Inventors: Lars Jönsson, Riccardo Pellegrini, Andrea Ligabue
  • Patent number: 8731657
    Abstract: A microcurrent stimulation device with a power supply, two or more electrodes electronically coupled to the power supply, a microcontroller configured to generate an electromagnetic waveform, an impedance measurement module configured to measure electrical impedance of one or more biological tissues between the two or more electrodes. A first safety circuit monitors electric current flow through one or more components of the microcurrent stimulation device and interrupts electric current flow if the electric current flow through the one or more components is above a predetermined level. A second safety circuit interrupts electric current flow through the one or more components if a firmware failure occurs.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 20, 2014
    Assignee: TAMA Research Corp.
    Inventors: Ali Shambayati, Fatemeh Abnoosi
  • Patent number: 8494649
    Abstract: Techniques are described for controlling effects caused when an implantable medical device (IMD) is subject to a disruptive energy field. The IMD may include an implantable lead that includes one or more electrodes. The IMD may further include a first component having a parasitic inductance. The IMD may further include a second component having a reactance. In some examples, the reactance of the second component may be selected based on the parasitic inductance of the first component such that an amount of energy reflected along the lead in response to energy produced by an electromagnetic energy source is below a selected threshold. In additional examples, the parasitic inductance of the first component and the reactance of the second component are configured such that an amount of energy reflected along the lead in response to a frequency of electromagnetic energy is below a selected threshold.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 23, 2013
    Assignee: Medtronic, Inc.
    Inventors: Christopher C. Stancer, Piotr J. Przybyszewski, Sandy K. Wixon, Joel Peltier, Sung-Min Park, David E. Manahan, Jonathan Edmonson, Ben W. Herberg
  • Patent number: 8473052
    Abstract: A pacemaker comprises an implantable pacemaker housing and a pacemaker electrode provided to transmit stimulation impulses, and a detector for a current which can be induced by an external magnetic field and flowing through the pacemaker electrode. A circuit element is provided to interrupt this inducible current.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 25, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Maschke
  • Patent number: 7963957
    Abstract: A device to visually indicate the presence of electric fields in electrosurgical apparatus, without the necessity of wiring or an electrical connection to the apparatus, to visually annunciate when an electrosurgical instrument is active is disclosed. This is to alert the operating surgeon, and observing personnel, that the device is operational to mitigate the possibility of anyone inadvertently being injured. The device is comprised of an electrically insulated enclosure filled with a gas in close proximity to a surgical handpiece connected to a radio frequency current generator.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: June 21, 2011
    Inventor: Ron Tolmei
  • Patent number: 7801625
    Abstract: An electromagnetic interference immune defibrillator lead has a first electromagnetic insulating layer. A first layer is formed on the first electromagnetic insulating layer, the first layer having a plurality of first conductive rings composed of first conductive material, each first conductive ring being separated by first insulating material. A second electromagnetic insulating layer is formed on the first layer. A second layer is, formed on the second electromagnetic insulating layer, the second layer having a plurality of second conductive rings composed of second conductive material, each second conductive ring being separated by second insulating material. A third electromagnetic insulating layer is formed on the second layer. The second conductive rings of second conductive material are positioned such that a second conductive ring overlaps a portion of a first conductive ring and overlaps a portion of a second conductive ring, the second conductive ring being adjacent to the first conductive ring.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: September 21, 2010
    Assignee: Medtronic, Inc.
    Inventor: Stuart G. MacDonald
  • Patent number: 7766011
    Abstract: In one embodiment, the invention provides a medical method for treating a person and comprises repeatedly compressing the person's chest. While repeatedly compressing the person's chest, the method further includes repeatedly delivering a positive pressure breath to the person and extracting respiratory gases from the person's airway using a vacuum following the positive pressure breath to create an intrathoracic vacuum to lower pressures in the thorax and to enhance blood flow back to the heart.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: August 3, 2010
    Assignee: Advanced Circulatory Systems, Inc.
    Inventor: Keith G. Lurie
  • Patent number: 7722412
    Abstract: A return pad cable connector, in accordance with the present disclosure, for use with a disposable return pad, includes a cord having a conductive wire disposed therethrough which conductive wire interconnects the return pad cable connector to an electrosurgical energy source. The return pad further includes a connector operatively coupled to the cord, the connector having a conductive surface which is selectively engageable with a corresponding conductive surface disposed on the return pad, the conductive surface of the connector including a conductive adhesive disposed thereon and a non-conductive adhesive disposed above the periphery of the conductive surface of the connector for engagement with a corresponding non-conductive adhesive disposed above the periphery of the conductive surface of the return pad. The connector can include a magnet for magnetically coupling the connector to the conductive surface disposed on the return pad.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: May 25, 2010
    Assignee: Covidien AG
    Inventors: Chris J. Ehr, Arthur Schoenman
  • Patent number: 7711418
    Abstract: An electroimpedance tomograph including a plurality of electrodes placed on a body, measuring circuits processing voltage signals recorded by the electrodes, and a control unit supplying two electrodes each with an alternating current. The control unit has a preset feed frequency. The control unit processes the processed voltage signals of all other electrodes to reconstruct the impedance distribution of the body in the electrode plane. The control unit provides for an automatic setting of the current feed frequency/frequencies to record a background frequency spectrum by detecting the electrode voltage signals over a preset period of time and record them as a voltage time series and transform them into a frequency spectrum. The control unit searches in the background frequency spectrum for a frequency (different states) or frequencies (different frequencies) that leads to a useful signal to background ratio above a preset threshold value when used as a feed frequency.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: May 4, 2010
    Assignee: Dräger Medical AG & Co. KG
    Inventors: Yvo Gärber, Markus Steeger, Jianhua Li, Steffen Leonhardt, Jan Rüterbories, Rainer Goldau
  • Patent number: 7555350
    Abstract: An electromagnetic interference immune defibrillator lead has a first electromagnetic insulating layer. A first layer is formed on the first electromagnetic insulating layer, the first layer having a plurality of first conductive rings composed of first conductive material, each first conductive ring being separated by first insulating material. A second electromagnetic insulating layer is formed on the first layer. A second layer is, formed on the second electromagnetic insulating layer, the second layer having a plurality of second conductive rings composed of second conductive material, each second conductive ring being separated by second insulating material. A third electromagnetic insulating layer is formed on the second layer. The second conductive rings of second conductive material are positioned such that a second conductive ring overlaps a portion of a first conductive ring and overlaps a portion of a second conductive ring, the second conductive ring being adjacent to the first conductive ring.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: June 30, 2009
    Assignee: Medtronic, Inc.
    Inventor: Stuart G. MacDonald
  • Patent number: 7529590
    Abstract: An electromagnetic interference immune defibrillator lead has a first electromagnetic insulating layer. A first layer is formed on the first electromagnetic insulating layer, the first layer having a plurality of first conductive rings composed of first conductive material, each first conductive ring being separated by first insulating material. A second electromagnetic insulating layer is formed on the first layer. A second layer is, formed on the second electromagnetic insulating layer, the second layer having a plurality of second conductive rings composed of second conductive material, each second conductive ring being separated by second insulating material. A third electromagnetic insulating layer is formed on the second layer. The second conductive rings of second conductive material are positioned such that a second conductive ring overlaps a portion of a first conductive ring and overlaps a portion of a second conductive ring, the second conductive ring being adjacent to the first conductive ring.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 5, 2009
    Assignee: Medtronic, Inc.
    Inventor: Stuart G. MacDonald
  • Patent number: 7529591
    Abstract: An electromagnetic interference immune defibrillator lead has a first electromagnetic insulating layer. A first layer is formed on the first electromagnetic insulating layer, the first layer having a plurality of first conductive rings composed of first conductive material, each first conductive ring being separated by first insulating material. A second electromagnetic insulating layer is formed on the first layer. A second layer is, formed on the second electromagnetic insulating layer, the second layer having a plurality of second conductive rings composed of second conductive material, each second conductive ring being separated by second insulating material. A third electromagnetic insulating layer is formed on the second layer. The second conductive rings of second conductive material are positioned such that a second conductive ring overlaps a portion of a first conductive ring and overlaps a portion of a second conductive ring, the second conductive ring being adjacent to the first conductive ring.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 5, 2009
    Assignee: Medtronic, Inc.
    Inventor: Stuart G. MacDonald
  • Patent number: 7473145
    Abstract: A return pad cable connector, in accordance with the present disclosure, for use with a disposable return pad, includes a cord having a conductive wire disposed therethrough which conductive wire interconnects the return pad cable connector to an electrosurgical energy source. The return pad further includes a connector operatively coupled to the cord, the connector having a conductive surface which is selectively engageable with a corresponding conductive surface disposed on the return pad, the conductive surface of the connector including a conductive adhesive disposed thereon and a non-conductive adhesive disposed above the periphery of the conductive surface of the connector for engagement with a corresponding non-conductive adhesive disposed above the periphery of the conductive surface of the return pad. The connector can include a magnet for magnetically coupling the connector to the conductive surface disposed on the return pad.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: January 6, 2009
    Assignee: Covidien AG
    Inventors: Chris J. Ehr, Arthur Schoenman
  • Patent number: 7418296
    Abstract: An external interface device provides telemetry between an implantable apparatus and a remote device. The interface device includes a battery powered circuit and a wireless transceiver. A power supply of the remote device is isolated from the implantable apparatus by a wireless communication link.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 26, 2008
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Scott Freeberg
  • Patent number: 7367971
    Abstract: A removable semi-insulating sheet for use in self-limiting electrosurgical return semi-insulating sheet for use with electrosurgery. Through the selection of impedance characteristics for the electrode materials of the principal body of the semi-insulating sheet, and through tailoring of semi-insulating sheet geometries, the return electrode of the present invention is self-regulating and self-limiting as to current density and temperature rise so as to prevent patient trauma. The semi-insulating sheet has an effective bulk impedance equal to or greater than about 4,000 ?·cm. The effective bulk impedance of the sheet may arise from resistive components, capacitive components, inductive components, or combinations thereof. The configuration of the presently described return electrode allows the electrode to self-limit the electrode's current densities, thereby preventing burning of a patient during surgery.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: May 6, 2008
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Richard P. Fleenor, David B. Kieda, James D. Isaacson, Paul R. Borgmeier
  • Patent number: 7353059
    Abstract: A medical device is configured to attenuate emission of electromagnetic radiation and comprises a housing, a circuit assembly mounted in the housing, and a panel coupled to the housing and to the circuit assembly. The panel comprises a first conductive region on an interior surface of the panel that is configured to be capacitively coupled to the ground, an opening substantially adjacent to the first conductive region, a second conductive region on the interior surface that is configured to be coupled to ground, and a non-conductive region on the interior surface between the first conductive region and the second conductive region.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 1, 2008
    Assignee: Medtronic, Inc.
    Inventors: John P. Fluegel, John M. Kruse, Paul T. Simonette