Patents Assigned to Sherwood Services AG
  • Publication number: 20090289698
    Abstract: An apparatus for selectively enabling power including a power supply, and a device having a controller and an input activated by a user. The controller is selectively powered by the power supply. While the device is in a sleep state, a sensing circuit senses activation of the input by the user and enables the power supply to provide power to the controller in response to the sensed activation of the input by the user. A latch circuit causes the power supply to continue to provide power to the controller. The controller is responsive to the sensed activation of the input by the user for enabling the latch circuit and for disabling the latch circuit, thereby reentering the device into a sleep state.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 26, 2009
    Applicant: SHERWOOD SERVICES AG
    Inventors: Jeffrey E. Price, Michael E. Bisch, Hector Hernandez, Jeffrey E. Forrest
  • Publication number: 20090222236
    Abstract: An electronic thermometer is configured for selectable predictive modes based upon the same predictive algorithm. A mode selector is adapted for user selection between several modes of operation of the thermometer. Each mode of operation utilizes the same predictive algorithm for estimating the temperature of the subject before the thermometer reaches full equilibrium. Different modes offer users a selection for striking the appropriate balance between response time and precision, based upon user preferences and needs.
    Type: Application
    Filed: May 11, 2009
    Publication date: September 3, 2009
    Applicant: Sherwood Services AG
    Inventors: Michael E. Bisch, Joseph T. Gierer
  • Publication number: 20090187188
    Abstract: A surgical device is disclosed including a housing having an activation switch. The activation switch is adapted to couple to an electrosurgical energy source and includes a knob. The knob is slideable with respect to the housing and travels within a guide channel defined within the housing. The activation switch is selectively moveable in a first direction within the guide channel. Moving the activation switch in the first direction sets a desired electrosurgical energy level. The activation switch is also moveable is a second direction. Moving the activation switch is the second direction activates the electrosurgical energy source.
    Type: Application
    Filed: March 5, 2009
    Publication date: July 23, 2009
    Applicant: Sherwood Services AG
    Inventors: Paul Guerra, Ronald J. Podhajsky, Dale F. Schmaltz, Arlan J. Reschke
  • Publication number: 20090154519
    Abstract: A method for calibrating a thermometer is provided. The method includes deriving values of at least two different reference calibration coefficients of a reference calibration equation. The reference calibration equation relates temperature of a reference temperature sensor to at least two different calibration coefficients and a measured characteristic of the reference temperature sensor. A primary temperature sensor of the thermometer is calibrated using the derived values of the at least two different reference calibration coefficients. In another method for calibrating a thermometer, value of at least one reference calibration coefficient is derived from a reference calibration equation. The reference calibration equation is a non-linear equation relating the temperature of the reference temperature sensor to the at least one calibration coefficient and a measured characteristic of the reference temperature sensor.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 18, 2009
    Applicant: Sherwood Service AG
    Inventor: Jeffrey E. Price
  • Publication number: 20090120821
    Abstract: A kit for medical waste disposal comprising a plurality of containers; a hood assembly configured to substantially cover an open end of a respective one said containers, the hood assembly defining a passage through which medical waste can be passed to the open end of said container; and a plurality of lids, separate from the hood assembly, each configured to be placed over an open end of a respective container and to substantially close the open end of said container when said container is at least partially filled with medical waste; each of said containers being configured for separation from the hood assembly for disposal.
    Type: Application
    Filed: January 19, 2009
    Publication date: May 14, 2009
    Applicant: Sherwood Services AG
    Inventors: John JAPUNTICH, Mark Brian Finnestad, Anton M. Smudde
  • Patent number: 7530977
    Abstract: An infusion and/or withdrawal fitting for biomedical fluid circuits is defined by a tubular conduit having a first end connectable to a biomedical fluid circuit, and a second end which is closed by a plug having a collar connected to the plug at a weakened portion; the conduit having a breaking member for breaking the weakened portion when fitting the plug to the conduit, and for retaining the collar on the conduit.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: May 12, 2009
    Assignee: Sherwood Services AG
    Inventor: Marco Lodi
  • Publication number: 20090092172
    Abstract: A cassette of tympanic thermometer probe covers includes a frame and probe covers releasably attached to the frame. The probe covers can be individually attached over a probe of a tympanic thermometer to protect the probe from contamination. The probe covers are constructed to releasably secure themselves to the probe. The force required to secure the probe covers to the frame is less that the force which is required to detach the probe covers from the frame so that the probe cover is held by the frame while being attached to the thermometer probe. The probe cover is connected to the frame by frangible connections that are arranged to inhibit pivoting of the probe cover when being attached to the thermometer probe. A method of securing a probe cover to a probe of a tympanic thermometer is also disclosed.
    Type: Application
    Filed: December 12, 2008
    Publication date: April 9, 2009
    Applicant: SHERWOOD SERVICES AG
    Inventors: James M. Harr, Mitchell H. Babkes, Clarence Walker
  • Patent number: 7513363
    Abstract: A medical implement dispensing and disposal system is configured for mounting within an interior of an enclosure having a first opening for receiving soiled medical implements and a second opening for dispensing medical implements. The system comprises a dispensing chamber and a disposal chamber defined by separate containers and configured to be substantially enclosed within the interior of the enclosure and removed from the interior of the enclosure. The dispensing chamber is configured to contain medical implements and has an access opening positioned for alignment with the second opening of the enclosure to facilitate passage of medical implements from the enclosure. The disposal chamber is configured to collect soiled medical implements and has an inlet opening positioned for alignment with the first opening of the enclosure to facilitate passage of soiled medical implements into the enclosure.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: April 7, 2009
    Assignee: Sherwood Services AG
    Inventors: Robert A. Brown, Anton M. Smudde
  • Publication number: 20090055107
    Abstract: A flow control apparatus having a flow monitoring system capable of detecting and identifying a downstream occlusion present within an administration feeding set loaded to the flow control apparatus is disclosed. A software subsystem is associated with the flow control apparatus and administration feeding set, the software system plots at least one discrete date point against a standard occlusion profile to detect if a downstream occlusion present within the administration feeding set.
    Type: Application
    Filed: October 31, 2008
    Publication date: February 26, 2009
    Applicant: SHERWOOD SERVICES AG
    Inventors: Christopher A. Knauper, Joseph A. Hudson
  • Publication number: 20080298429
    Abstract: A tympanic thermometer includes a thermally conductive nozzle extending from a distal end of the thermometer. A base of a sensor can is thermally connected to the nozzle to define a path of conductive heat transfer from the nozzle to the base of the can thereby minimizing a thermal gradient between proximal and distal ends of the sensor can when temperature is measured in the ear. An air space around the sensor can inhibits heat transfer except at the base of the sensor can.
    Type: Application
    Filed: August 8, 2008
    Publication date: December 4, 2008
    Applicant: SHERWOOD SERVICES AG
    Inventor: James M. Harr
  • Publication number: 20080208208
    Abstract: To provide a gastrostomy tube extension device which can facilitate insertion or removal of a gastrostomy tube by making the degree of extension of the gastrostomy tube constant. [Means for Resolution] A gastrostomy tube extension device 20 used for inserting and taking out a gastrostomy tube 10 into/from a hole 33 formed on a patient's abdomen, the gastrostomy tube 10 including an outer fixing member 10a to be installed on the skin surface side, an inner fixing member 10c installed on the inner surface side of the stomach wall, and a tube member 10b for connecting the outer fixing member 10a and the inner fixing member 10c, and the gastrostomy tube extension device comprising a rod 21 and an engaging member 22. The rod 21 has a rod-shaped member which can push the center of the distal end of the inner fixing member 10c with its distal portion toward the distal end, and with a plurality of engaging step portions 24a are formed on the proximal portion.
    Type: Application
    Filed: April 26, 2005
    Publication date: August 28, 2008
    Applicant: SHERWOOD SERVICES AG
    Inventors: Katsuki Nagata, Yasuyuki Baba
  • Patent number: 7416437
    Abstract: A connector system for coupling electrosurgical instruments to electrosurgical generators is provided. The connector system includes a plug portion connectable to an electrosurgical instrument, the plug portion of the electrosurgical instrument having a shape specific to a particular manufacturer; and a plug receptacle portion supported on the electrosurgical generator; the plug receptacle portion being shaped to receive the plug portion of the electrosurgical instrument of the particular manufacturer and the plug portion of the electrosurgical instrument of any other manufacturer.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: August 26, 2008
    Assignee: Sherwood Services AG
    Inventors: Joe Don Sartor, Mark Joseph Huseman
  • Patent number: 7396336
    Abstract: A switched resonant power amplifier system for ultrasonic transducers is disclosed. The system includes an amplifier that receives and processes a driver output signal for generating a drive signal that is provided to an ultrasonic device for controlling output of the ultrasonic device. An output control circuit receives and processes a signal related to a feedback signal generated by the ultrasonic device and a divider reference signal, and generates a compensated clock signal that is adjusted for at least one of phase and frequency differences between the received feedback signal and the divider reference signal. A compensated drive circuit receives and processes the compensated clock signal for generating the divider reference signal, and for generating the driver output signal.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: July 8, 2008
    Assignee: Sherwood Services AG
    Inventors: James H. Orszulak, James W. McPherson
  • Patent number: 7393354
    Abstract: An electrosurgical pencil (100) configured and adapted to support an electrocautery blade (116). A strain gauge (130) is affixed to the proximal, end of the electrocautery blade and measures the displacement of the blade as a result of resistance and drag acting on the blade. The electrosurgical pencil also includes a meter electrically connected to the strain gauge for monitoring either a change in voltage, a change in electrical current or a change in optical wavelength. The amount of blade displacement as measured by the strain gauge is available for display to the surgeon and/or as sensory input for a control circuit in the electrosurgical generator (118) that modulates the generator output waveform. The electrosurgical pencil further includes a control circuit electrically coupled between the electrocautery blade and the electrosurgical generator. The control circuit is configured and adapted to control power supplied to electrocautery blade based on the displacement measured by the strain gauge.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: July 1, 2008
    Assignee: Sherwood Services AG
    Inventors: Thomas L. Buchman, II, Ronald J. Podhajsky, Arlan J. Reschke
  • Patent number: 7384421
    Abstract: An endoscopic bipolar forceps is provided. The forceps includes a housing, a shaft, a drive assembly, a handle assembly and a slide activated cutting assembly. The shaft is affixed to the housing and comprises an end effector assembly comprising two jaw members at its distal end. The drive assembly is configured to move the end effector assembly. The handle assembly is in mechanical cooperation with the drive assembly. The slide-activated cutting assembly is disposed at least partially within the housing and move a knife rod comprising a knife blade at its distal end to cut tissue along a tissue seal. A source of electrosurgical energy is adapted to connect to each jaw member to enable them to conduct energy through tissue to affect a tissue seal.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 10, 2008
    Assignee: Sherwood Services AG
    Inventor: Dylan Hushka
  • Patent number: 7384420
    Abstract: An electrosurgical instrument includes a housing having a shaft attached thereto which connects a pair of first and second jaw members such that the jaw members are movable relative to one another to grasp tissue therebetween. The instrument also includes a four-bar handle assembly attached to the housing for actuating a drive rod assembly. The handle assembly includes a handle and a cam-like piston which cooperate to impart a uniform closure pressure against tissue grasped between the jaw members. The instrument also includes a rotating assembly for rotating the jaw members, a knife assembly for separating tissue and a pair of electrical leads connect the jaw members to a source of electrical energy. The electrical leads include slack loops disposed in the rotating assembly which permit rotation of the jaw members about the axis.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: June 10, 2008
    Assignee: Sherwood Services AG
    Inventors: Sean T. Dycus, Dax D. Brown, David Farascioni, Michael Primavera, David N. Fowler
  • Publication number: 20080125767
    Abstract: A thermocouple measuring circuit for sensing a temperature at a measuring point is provided. The thermocouple measurement circuit (12) includes a thermocouple input for sensing a temperature at a measuring point, a compensation circuit (14) for compensating thermocouple effects of junctions of the thermocouple, and an instrumentation amplifier (16) for summing an output of the thermocouple and an output of the compensation circuit and outputting a voltage indicative of the temperature sensed, wherein the output of the compensation circuit is a reference voltage for the output of the instrumentation amplifier. Various embodiments of the thermocouple measurement circuit may be employed in electrosurgical generators for controlling output power dependent on temperature conditions.
    Type: Application
    Filed: October 23, 2003
    Publication date: May 29, 2008
    Applicant: SHERWOOD SERVICES AG
    Inventor: Derek M. Blaha
  • Patent number: 7377920
    Abstract: A laparoscopic bipolar electrosurgical instrument for sealing tissue includes a handle having an elongated tube affixed thereto. The tube includes first and second jaw members having electrically conductive sealing surfaces attached to a distal end thereof which are movable from a first position for approximating tissue to a second position for grasping tissue therebetween. The handle includes a fixed handle and a handle which is movable relative to the fixed handle to effect movement of the jaw members from the first position to the second position for grasping tissue. The jaw members connect to a source of electrosurgical energy such that the opposable sealing surfaces are capable of conducting electrosurgical energy through tissue held therebetween. A stop is included for maintaining a minimum separation distance between opposing sealing surfaces. A ratchet is also included to maintain a closure force in the range of about 7 kg/cm2 to about 13 kg/cm2 between opposing sealing surfaces.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: May 27, 2008
    Assignee: Sherwood Services AG
    Inventors: Steven P. Buysse, Kate R. Lawes, Dale F. Schmaltz, Michael J. Lands, S. Wade Lukianow, Kristin D. Johnson, Gary M. Couture, Lap P. Nguyen
  • Publication number: 20080112464
    Abstract: An electronic thermometer includes an automatic activating system for automatically configuring the thermometer between an active state (broadly, the thermometer is turned on) and a non-active state (broadly, the thermometer is turned off). In general the activating system includes a solid-state activating sensor, such as a Hall-effect sensor, in a housing of the thermometer and a magnet in a probe of the thermometer for activating the sensor when the probe is received in a probe well.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 15, 2008
    Applicant: SHERWOOD SERVICES AG
    Inventors: Denis Y. Yerlikaya, Jeffrey E. Price
  • Publication number: 20080112461
    Abstract: An electronic thermometer is configured for selectable predictive modes based upon the same predictive algorithm. A mode selector is adapted for user selection between several modes of operation of the thermometer. Each mode of operation utilizes the same predictive algorithm for estimating the temperature of the subject before the thermometer reaches full equilibrium. Different modes offer users a selection for striking the appropriate balance between response time and precision, based upon user preferences and needs.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 15, 2008
    Applicant: SHERWOOD SERVICES AG
    Inventors: Michael E. Bisch, Joseph T. Gierer