Patents by Inventor Russell D. Hempstead
Russell D. Hempstead has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9265847Abstract: A dual-mode autoclave for sterilizing a battery is disclosed including a controller and an environmental system in operative communication with the controller and configured sterilize a battery contained within the dual-mode autoclave in response to a command from the controller. The environmental system configured to reduce a temperature of the battery to a first, pre-cooled temperature during a first operational phase and configured to increase the temperature of the battery to a second, autoclaving temperature during a second operational phase.Type: GrantFiled: July 22, 2015Date of Patent: February 23, 2016Assignee: Covidien LPInventors: Robert B. Stoddard, James S. Cunningham, William J. Dickhans, Russell D. Hempstead, Eric R. Larson, Duane E. Kerr, William H. Nau, Jr., Anthony B. Ross, John J. Kappus
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Patent number: 9265569Abstract: A method for manufacturing a jaw assembly configured for use with an electrosurgical forceps is provided. A seal plate with an inwardly facing tab member extending along a peripheral edge thereof is formed. A cavity defined along the inwardly facing tab member of the seal plate is formed. Subsequently, the seal plate is overmolded to a jaw housing. The cavity is configured to receive an insulative substrate therein to facilitate securing the seal plate to the jaw housing.Type: GrantFiled: March 29, 2012Date of Patent: February 23, 2016Assignee: Covidien LPInventors: Keir Hart, Russell D. Hempstead, Edward M. Chojin
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Publication number: 20160038169Abstract: A surgical instrument includes a pair of jaw members moveable between a spaced-apart and an approximated position. A drive bar is translatable between a distal and a proximal position for moving the jaw members between the spaced-apart and approximated positions. A lever is moveable between an initial position and an actuated position for translating the drive bar between the distal and proximal positions. A sleeve disposed about the drive bar includes an annular track having a substantially radial segment(s) and a substantially longitudinal segment(s). A collar interdisposed between the sleeve and the drive bar includes a stop member(s) extending radially outwardly therefrom. The stop member(s) is engaged within the track and is translatable from a first position, wherein the stop member is positioned within the longitudinal segment, to a second position, wherein the stop member is engaged within the radial segment, to lock the lever in the actuated position.Type: ApplicationFiled: October 22, 2015Publication date: February 11, 2016Inventors: JOHN R. TWOMEY, RUSSELL D. HEMPSTEAD, KEIR HART
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Publication number: 20160030771Abstract: An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.Type: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Inventors: Robert B. STODDARD, James S. CUNNINGHAM, William J. DICKHANS, Russell D. HEMPSTEAD, Eric R. LARSON, Duane E. KERR, William H. NAU, JR., Anthony B. ROSS, John J. KAPPUS
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Patent number: 9247886Abstract: Improved apparatus and methods for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises spatially compact “bracelet” embodiment adapted to accurately place and maintain a sensor (e.g., tonometric pressure sensor) with respect to the anatomy of the subject, including an optional alignment apparatus which moveably captures the sensor to, inter alia, facilitate coupling thereof to an actuator used to position the sensor during measurements. The alignment apparatus also advantageously allows the sensor position to be maintained when the fixture is removed from the subject, such as during patient transport. A completely autonomous variant of the bracelet apparatus having internal power supply and wireless interfaces is also disclosed. Methods for positioning the alignment apparatus and sensor and providing treatment to the subject are also described.Type: GrantFiled: May 23, 2011Date of Patent: February 2, 2016Assignee: Tensys Medical, Inc.Inventors: Simon E. Finburgh, Mark W. Perona, Russell D. Hempstead
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Publication number: 20160000496Abstract: A forceps includes an end effector assembly having first and second jaw members movable between a spaced-apart position and an approximated position for grasping tissue therebetween. A knife assembly having a cutting blade disposed at a distal end thereof is also provided. The knife assembly is translatable relative to the end effector assembly between a retracted position and an extended position, wherein the cutting blade extends between the jaw members to cut tissue grasped therebetween. The knife assembly includes a proximal component and a first distal component that includes the cutting blade. The proximal and first distal components are removably coupled to one another to facilitate replacement of the first distal component. Methods of preparing such forceps for reuse are also provided.Type: ApplicationFiled: September 11, 2015Publication date: January 7, 2016Inventors: Duane E. Kerr, James D. Allen, IV, Edward M. Chojin, Allan J. Evans, Russell D. Hempstead, Glenn A. Horner, Mark J. Huseman, Daniel A. Joseph, Arlen J. Reschke, Robert M. Sharp
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Patent number: 9211657Abstract: A method for manufacturing an end effector assembly includes providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second, approximated position. One of the first and second jaw members includes a cavity defined therein and the other of the first and second jaw members includes a stop member configured to be inserted into the cavity. A gap-setting gauge is grasped between the first and second jaw members to define a gap-distance between the jaw members equivalent to a thickness of the gap-setting gauge. The first and second jaw members are set such that the jaw members are prevented from approximation beyond the gap-distance.Type: GrantFiled: June 5, 2014Date of Patent: December 15, 2015Assignee: Covidien LPInventors: Joanna Ackley, James D. Allen, IV, Ryan C. Artale, Kim V. Brandt, Dennis W. Butcher, Edward M. Chojin, Gary M. Couture, James S. Cunningham, David M. Garrison, Keir Hart, Russell D. Hempstead, Glenn A. Horner, Daniel A. Joseph, Duane E. Kerr, Dylan R. Kingsley, Peter M. Mueller, Jessica E. C. Olson, Sean T. Oneill, Jason T. Sanders, Robert M. Sharp, John R. Twomey, Jeffrey R. Unger
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Publication number: 20150335772Abstract: A dual-mode autoclave for sterilizing a battery is disclosed including a controller and an environmental system in operative communication with the controller and configured sterilize a battery contained within the dual-mode autoclave in response to a command from the controller. The environmental system configured to reduce a temperature of the battery to a first, pre-cooled temperature during a first operational phase and configured to increase the temperature of the battery to a second, autoclaving temperature during a second operational phase.Type: ApplicationFiled: July 22, 2015Publication date: November 26, 2015Inventors: ROBERT B. STODDARD, JAMES S. CUNNINGHAM, WILLIAM J. DICKHANS, RUSSELL D. HEMPSTEAD, ERIC R. LARSON, DUANE E. KERR, WILLIAM H. NAU, JR., ANTHONY B. ROSS, JOHN J. KAPPUS
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Patent number: 9186165Abstract: A surgical instrument includes a pair of jaw members moveable between a spaced-apart and an approximated position. A drive bar is translatable between a distal and a proximal position for moving the jaw members between the spaced-apart and approximated positions. A lever is moveable between an initial position and an actuated position for translating the drive bar between the distal and proximal positions. A sleeve disposed about the drive bar includes an annular track having a substantially radial segment(s) and a substantially longitudinal segment(s). A collar interdisposed between the sleeve and the drive bar includes a stop member(s) extending radially outwardly therefrom. The stop member(s) is engaged within the track and is translatable from a first position, wherein the stop member is positioned within the longitudinal segment, to a second position, wherein the stop member is engaged within the radial segment, to lock the lever in the actuated position.Type: GrantFiled: December 10, 2013Date of Patent: November 17, 2015Assignee: Covidien LPInventors: John R. Twomey, Russell D. Hempstead, Keir Hart
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Publication number: 20150320487Abstract: A surgical instrument includes a reusable component and a disposable component selectively separable from and engagable with the reusable component. The disposable component includes an end effector and a mechanical actuator operable to induce mechanical movement of the end effector. The reusable component is configured for providing electrosurgical energy to the disposable component when engaged with the disposable component. A physical mating feature is configured to maintain engagement between the reusable and disposable components when the reusable and disposable components are engaged, and an electrical mating feature is configured to transmit electrical energy between the disposable and reusable components when the disposable and reusable components are engaged. All mechanical motion resulting from operation of the mechanical actuator may be contained within the disposable component.Type: ApplicationFiled: July 23, 2015Publication date: November 12, 2015Inventors: CHRISTOPHER A. DEBORSKI, RUSSELL D. HEMPSTEAD, KEIR HART
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Publication number: 20150305803Abstract: A surgical instrument includes an end effector assembly having jaw members movable between spaced-apart, first approximated, and second approximated positions. A knife is selectively movable relative to the end effector assembly between a retracted position, a first extended position, and a second extended position. A trigger is selectively actuatable between a un-actuated position, a first actuated position, and a second actuated position for moving the knife between its respective positions. A control member prevents movement of the trigger when the jaw members are disposed in the spaced-apart position, permits movement of the trigger to the first actuated position but prevents movement beyond the first actuated position when the jaw members are disposed in the first approximated position, and permits movement of the trigger to the second actuated position but prevents movement beyond the second actuated position when the jaw members are disposed in the second approximated position.Type: ApplicationFiled: July 9, 2015Publication date: October 29, 2015Inventors: ERIC R. LARSON, RUSSELL D. HEMPSTEAD, JOHN J. KAPPUS
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Patent number: 9161769Abstract: An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.Type: GrantFiled: March 15, 2013Date of Patent: October 20, 2015Assignee: Covidien LPInventors: Robert B. Stoddard, James S. Cunningham, William J. Dickhans, Russell D. Hempstead, Eric R. Larson, Duane E. Kerr, William H. Nau, Jr., Anthony B. Ross, John J. Kappus
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Publication number: 20150250529Abstract: A method of manufacturing a forceps includes providing first and second jaw members and depositing an electrically-conductive tissue sealing plate atop each jaw member via vapor deposition. The jaw members are then coupled to one another to permit movement of one (or both) of the jaw members relative to the other between a spaced-apart position and an approximated position for grasping tissue between the tissue sealing plates thereof.Type: ApplicationFiled: May 20, 2015Publication date: September 10, 2015Inventors: RUSSELL D. HEMPSTEAD, KEIR HART
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Publication number: 20150238220Abstract: An ultrasonic surgical instrument is provided. The ultrasonic surgical instrument includes a housing having an elongated shaft extending therefrom. The shaft has a jaw member disposed at a distal end thereof. The jaw member is movable between an open configuration and a clamping configuration and includes a tissue contacting surface thereon. A cutting blade extends from a distal end of the shaft and operably couples to the housing and adjacent the jaw member to treat tissue. A selectively removable laminate liner is positionable over the tissue contacting surface of the jaw member and configured to prevent contact between the tissue contacting surface and the cutting blade when the cutting blade is treating tissue.Type: ApplicationFiled: May 12, 2015Publication date: August 27, 2015Inventors: ANTHONY B. ROSS, ROBERT B. STODDARD, JAMES S. CUNNINGHAM, WILLIAM J. DICKHANS, RUSSELL D. HEMPSTEAD, ERIC R. LARSON, DUANE E. KERR, WILLIAM H. NAU, Jr., ARLEN K. WARD
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Patent number: 9113943Abstract: An ultrasonic surgical instrument is provided. The ultrasonic surgical instrument includes a housing having an elongated shaft extending therefrom. The shaft defines a longitudinal axis therethrough and has a jaw member disposed at a distal end thereof. The jaw member is movable between an open configuration and a clamping configuration. A cutting blade extends from a distal end the shaft and operably couples to the housing and adjacent the jaw member. The cutting blade includes top and bottom portions. The top portion configured to cool the bottom portion while the cutting blade treats tissue.Type: GrantFiled: March 30, 2012Date of Patent: August 25, 2015Assignee: Covidien LPInventors: Anthony B. Ross, Robert B. Stoddard, James S. Cunningham, William J. Dickhans, Russell D. Hempstead, Eric R. Larson, Duane E. Kerr, William H. Nau, Jr., Arlen K. Ward
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Patent number: 9114181Abstract: A dual-mode autoclave for sterilizing a battery is disclosed including a controller and an environmental system in operative communication with the controller and configured sterilize a battery contained within the dual-mode autoclave in response to a command from the controller. The environmental system configured to reduce a temperature of the battery to a first, pre-cooled temperature during a first operational phase and configured to increase the temperature of the battery to a second, autoclaving temperature during a second operational phase.Type: GrantFiled: March 30, 2012Date of Patent: August 25, 2015Assignee: Covidien LPInventors: Robert B. Stoddard, James S. Cunningham, William J. Dickhans, Russell D. Hempstead, Eric R. Larson, Duane E. Kerr, William H. Nau, Jr., Anthony B. Ross, John J. Kappus
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Patent number: 9113908Abstract: An end effector assembly having first and second jaw members is provided where one or both of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes an inwardly-facing surface having a slot defined therein and a wire having an insulative coating. A seal plate has at least one protrusion that is configured to be disposed in the slot. The at least one protrusion of the seal plate is configured to displace the insulative coating from the wire thereby forming an electrical connection therewith when the at least one protrusion is disposed in the slot.Type: GrantFiled: September 30, 2014Date of Patent: August 25, 2015Assignee: Covidien LPInventors: James D. Allen, IV, Ryan C. Artale, Dennis W. Butcher, Russell D. Hempstead, Glenn A. Horner, Duane E. Kerr, Jessica E. C. Olson, Jason T. Sanders, Jeffrey R. Unger
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Patent number: 9113897Abstract: A surgical instrument a reusable component and a disposable component selectively separable from and engagable with the reusable component. The disposable component includes an end effector and a mechanical actuator operable to induce mechanical movement of the end effector. The reusable component is configured for providing electrosurgical energy to the disposable component when engaged with the disposable component. A physical mating feature is configured to maintain engagement between the reusable and disposable components when the reusable and disposable components are engaged, and an electrical mating feature is configured to transmit electrical energy between the disposable and reusable components when the disposable and reusable components are engaged. All mechanical motion resulting from operation of the mechanical actuator may be contained within the disposable component.Type: GrantFiled: January 15, 2013Date of Patent: August 25, 2015Assignee: Covidien LPInventors: Christopher A. Deborski, Russell D. Hempstead, Keir Hart
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Patent number: 9084608Abstract: A surgical instrument includes an end effector assembly having jaw members movable between spaced-apart, first approximated, and second approximated positions. A knife is selectively movable relative to the end effector assembly between a retracted position, a first extended position, and a second extended position. A trigger is selectively actuatable between a un-actuated position, a first actuated position, and a second actuated position for moving the knife between its respective positions. A control member prevents movement of the trigger when the jaw members are disposed in the spaced-apart position, permits movement of the trigger to the first actuated position but prevents movement beyond the first actuated position when the jaw members are disposed in the first approximated position, and permits movement of the trigger to the second actuated position but prevents movement beyond the second actuated position when the jaw members are disposed in the second approximated position.Type: GrantFiled: June 9, 2014Date of Patent: July 21, 2015Assignee: Covidien LPInventors: Eric R. Larson, Russell D. Hempstead, John J. Kappus
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Publication number: 20150196204Abstract: Improved apparatus and methods for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises apparatus adapted to accurately place and maintain a sensor (e.g., tonometric pressure sensor) with respect to the anatomy of the subject, including an alignment apparatus which is separable from an adjustable fixture. The alignment apparatus moveably captures the sensor to, inter alia, facilitate coupling thereof to an actuator used to position the sensor during measurements. The alignment apparatus also advantageously allows the sensor position to be maintained when the fixture is removed from the subject, such as during patient transport. Methods for positioning the alignment apparatus and sensor, correcting for hydrostatic pressure effects, and providing treatment to the subject are also disclosed.Type: ApplicationFiled: January 20, 2015Publication date: July 16, 2015Inventors: Stephen R. Hessel, Simon E. Finburgh, Russell D. Hempstead, Mark W. Perona, Ronald J. Vidischak, Gregory I. Voss, Ronald S Conero, William H. Markle