Patents by Inventor Kevin L. Houser

Kevin L. Houser 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).

  • Publication number: 20210283839
    Abstract: An additive manufacturing system is capable of extruding poly-fiber strand having a fiber core coated with a polymer with a high range of flexibility in positioning and orienting extruded fibers. Extruded fibers may be laid in a single direction, or may curve or turn to be laid in multiple directions. Structures of devices and components may be created using interconnected extruded strands having interstitial spaces between and around the strands. This structure may be infused with resin or polymer using a pressure or vacuum based infusion system. In this manner, durable polymeric objects can be created without requiring expensive molds. Other techniques are also possible, including varying the types of strands used in an object to create areas of the object that will preferentially twist or flex in certain ways or directions, as well as producing objects with zones having different types of resin or no resin.
    Type: Application
    Filed: April 30, 2021
    Publication date: September 16, 2021
    Inventors: Kevin L. Houser, Peyton L. Hopson, Vincent H. Barre
  • Patent number: 11109858
    Abstract: A surgical instrument for stapling patient tissue is disclosed. The surgical instrument comprises an end effector, a firing element, an elongate shaft, a handle, an electric motor, and a display. The end effector extends from the elongate shaft and comprises a staple cartridge and a plurality of staples. The elongate shaft extends from the handle. The firing element is configured to move through the end effector between a proximal position and a distal position. The firing element is further configured to eject the plurality of staples from the staple cartridge during a firing stroke. The electric motor is configured to output a rotary motion and the firing element is operably responsive to the rotary motion. The display is configured to display a current position of the firing element during the firing stroke.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: September 7, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Emily A. Schellin, David C. Yates, Kevin L. Houser
  • Patent number: 11114195
    Abstract: A surgical instrument includes an end effector and a marking assembly. The end effector includes a first jaw; a second jaw movable relative to the first jaw to grasp tissue therebetween; and a tissue-treatment mechanism configured to apply a tissue treatment to tissue grasped between the first jaw and the second jaw. The marking assembly configured to apply a distinct marking to the tissue unique to each tissue treatment application, wherein the distinct marking distinguishes the tissue treatment application from other tissue treatment applications.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 7, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser
  • Patent number: 11090110
    Abstract: A surgical instrument comprises a controller configured to control application of RF or ultrasonic energy at a low level when displacement or intensity of a button is above a first threshold but below a second threshold higher than the first threshold, and control application of RF or ultrasonic energy at a high level when the displacement or intensity exceeds the second threshold. In another aspect, a surgical instrument comprises a first sensor configured to measure a tissue characteristic at a first location, a second sensor configured to measure the tissue characteristic at a second location, and a controller configured to, based at least in part on the measured tissue characteristic at the first location and the second location, control application of RF or ultrasonic energy.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 17, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris
  • Publication number: 20210220036
    Abstract: A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a radio frequency (RF) energy output powered by the battery assembly and configured to apply RF energy to a tissue; an ultrasonic energy output powered by the battery assembly and configured to apply ultrasonic energy to the tissue; and a controller configured to, based at least in part on a measured tissue characteristic, start application of RF energy by the RF energy output or application of ultrasonic energy by the ultrasonic energy output at a first time.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 22, 2021
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris, Geoffrey S. Strobl
  • Publication number: 20210212719
    Abstract: Various systems and methods for controlling an ultrasonic surgical instrument according to the location of tissue grasped within an end effector are disclosed. A control circuit can be configured to apply varying power levels, via a generator, to an ultrasonic transducer driving an ultrasonic electromechanical system to oscillate an ultrasonic blade. Further, the control circuit can measure impedances of the ultrasonic transducer corresponding to the varying power levels and determine a location of tissue positioned within the end effector according to a difference between the impedances of the ultrasonic transducer relative to a threshold.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 15, 2021
    Inventors: Kevin L. Houser, David C. Yates, Frederick E. Shelton, IV, Chad P. Boudreaux
  • Publication number: 20210212744
    Abstract: A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a radio frequency (RF) energy output powered by the battery assembly and configured to apply RF energy to a tissue; an ultrasonic energy output powered by the battery assembly and configured to apply ultrasonic energy to the tissue; and a controller configured to, based at least in part on a measured tissue characteristic, start application of RF energy by the RF energy output or application of ultrasonic energy by the ultrasonic energy output at a first time.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 15, 2021
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris, Geoffrey S. Strobl
  • Patent number: 11058447
    Abstract: A surgical instrument includes a transducer configured to produce vibrations at a predetermined frequency. An ultrasonic end effector extends along a longitudinal axis and is coupled to the transducer. The ultrasonic end effector comprises an ultrasonic blade and a clamping mechanism. A controller receives a feedback signal from the ultrasonic end effector and the feedback signal is measured by the controller. A lumen is adapted to couple to a pump. The controller is configured to control fluid flow through the lumen based on the feedback signal, and the lumen is located within the ultrasonic end effector.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 13, 2021
    Assignee: Cilag GmbH International
    Inventor: Kevin L. Houser
  • Patent number: 11051873
    Abstract: Various forms are directed to systems and methods for dissection and coagulation of tissue. A method for detecting a short circuit in a surgical system configured to apply radio frequency energy and ultrasonic energy to a target surgical site that includes delivering radio frequency (RF) energy to an electrode of a surgical instrument, transitioning from delivering the RF energy to delivering ultrasonic energy to an ultrasonic blade of the surgical instrument, delivering an exploratory ultrasonic pulse to the ultrasonic blade, measuring an ultrasonic property of tissue engaged by the surgical instrument, wherein the ultrasonic property is associated with the exploratory ultrasonic pulse, determining whether the measured ultrasonic property is consistent with a behavior of low impedance tissue, and delivering ultrasonic energy to the ultrasonic blade to cut the tissue upon determining that the measured ultrasonic property is consistent with ultrasonic energy being applied to low impedance tissue.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: July 6, 2021
    Assignee: Cilag GmbH International
    Inventors: Eitan T. Wiener, Benjamin J. Danziger, David C. Yates, Kevin L. Houser, Ryan M. Asher, Frederick E. Shelton, IV, Jeffrey D. Messerly, Geoffrey S. Strobl, Kristen G. Denzinger
  • Patent number: 11051840
    Abstract: A surgical instrument is disclosed. The surgical instrument includes a handle assembly that includes a handle housing. The handle housing comprises two asymmetric portions, a first portion configured to support mechanical and electrical components of the surgical instrument and a second portion comprising a removable cover.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 6, 2021
    Assignee: Ethicon LLC
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris
  • Patent number: 11051876
    Abstract: Surgical systems can include evacuation systems for evacuating smoke, fluid, and/or particulates from a surgical site. A surgical evacuation system can be intelligent and may include one or more sensors for detecting one or more properties of the surgical system, evacuation system, surgical procedure, surgical site, and/or patient tissue, for example.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: July 6, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jason L. Harris
  • Patent number: 11045591
    Abstract: A surgical evacuation system having dual in-series large and small droplet filters is provided. The surgical evacuation system comprises a pump, a motor operably coupled to the pump, and a flow path fluidically coupled to the pump. the flow path comprises a first fluid filter configured to extract a large droplet in a fluid moving through the flow path and a second fluid filter configured to extract a small droplet in the fluid moving through the flow path. the first fluid filter is coupled in series with the second fluid filter. The first fluid filter is positioned upstream of the second fluid filter. An outlet port of the second fluid filter is coupled to an inlet port of a non-fluid filter.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 29, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser
  • Publication number: 20210186596
    Abstract: A surgical instrument includes a rotatable electrical coupling assembly having a first part and a second part that electrically couple and rotate relative to each other. The second part is carried by and rotates with a tube collar coupled to a transducer. A portion of the transducer is inserted through an aperture of the second part, but does not contact the second part. The first part of the assembly may electrically couple to the second part via pogo pins, brush contacts, or ball bearings. Alternatively, the first part may comprise conductive channels formed in the casing. The second part may comprise a rotatable drum with a conductive trace. In some versions, one or more components may comprise MID components. In another version, the rotatable electrical coupling assembly comprises a rotatable PC board and brush contact. Further still, a circuit board may be provided with the transducer inside a transducer casing.
    Type: Application
    Filed: February 4, 2021
    Publication date: June 24, 2021
    Inventors: Daniel J. Mumaw, Shawn D. Bialczak, Sora Rhee, Craig T. Davis, John A. Weed, III, Kip M. Rupp, Foster B. Stulen, Timothy G. Dietz, Kevin L. Houser
  • Publication number: 20210177481
    Abstract: A surgical instrument comprises a shaft assembly comprising a shaft and an end effector coupled to a distal end of the shaft; a handle assembly coupled to a proximal end of the shaft; a battery assembly coupled to the handle assembly; a radio frequency (RF) energy output powered by the battery assembly and configured to apply RF energy to a tissue; an ultrasonic energy output powered by the battery assembly and configured to apply ultrasonic energy to the tissue; and a controller configured to, based at least in part on a measured tissue characteristic, start application of RF energy by the RF energy output or application of ultrasonic energy by the ultrasonic energy output at a first time.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 17, 2021
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris, Geoffrey S. Strobl
  • Publication number: 20210177452
    Abstract: An ultrasonic electromechanical system for an ultrasonic electromechanical system may include an ultrasonic blade, a clamp arm disposed opposite the ultrasonic blade, an ultrasonic transducer acoustically coupled to the ultrasonic blade, in which the ultrasonic transducer is configured to oscillate the ultrasonic blade in response to a drive signal, and a control circuit coupled to the ultrasonic transducer. The control circuit can be configured to determine a position of a tissue clamped between the ultrasonic blade and the clamp arm, and control an amount of power of the drive signal based at least in part on the position of the tissue.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 17, 2021
    Inventors: Cameron R. Nott, Fergus P. Quigley, Frederick E. Shelton, IV, Kevin L. Houser, David C. Yates, Patrick J. Scoggins, Craig N. Faller, Madeleine C. Jayme
  • Publication number: 20210177496
    Abstract: A surgical instrument comprises a controller configured to control application of RF or ultrasonic energy at a low level when displacement or intensity of a button is above a first threshold but below a second threshold higher than the first threshold, and control application of RF or ultrasonic energy at a high level when the displacement or intensity exceeds the second threshold. In another aspect, a surgical instrument comprises a first sensor configured to measure a tissue characteristic at a first location, a second sensor configured to measure the tissue characteristic at a second location, and a controller configured to, based at least in part on the measured tissue characteristic at the first location and the second location, control application of RF or ultrasonic energy.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 17, 2021
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris
  • Publication number: 20210177494
    Abstract: A surgical instrument includes a temperature sensor and a control unit that is operable to deactivate an end effector of the surgical instrument. In some versions the temperature sensor detects the temperature of a transducer, while in others the temperature sensor detects the temperature of the end effector. The surgical instrument may also include a trigger and a trigger position sensor. A force sensor or a position sensor may be included to determine the force and/or position of the transmission assembly. The end effector may also include a force sensor or a micro coil. A surgical instrument having a sensor may be included in a surgical system that includes a control unit and a remote controller. In some instances the remote controller may have one or more force-feedback components. In addition, a device interface and a surgeon interface may be included to remotely adjust the settings of the control unit.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 17, 2021
    Inventors: Kevin L. Houser, Foster B. Stulen, William D. Dannaher, Frederick E. Shelton, IV, Geoffrey S. Strobl, Aaron C. Voegele, Timothy P. Lessek, Gavin M. Monson, Barry C. Worrell, Hitesh Jain
  • Patent number: 11034085
    Abstract: An additive manufacturing system is capable of extruding poly-fiber strand having a fiber core coated with a polymer with a high range of flexibility in positioning and orienting extruded fibers. Extruded fibers may be laid in a single direction, or may curve or turn to be laid in multiple directions. Structures of devices and components may be created using interconnected extruded strands having interstitial spaces between and around the strands. This structure may be infused with resin or polymer using a pressure or vacuum based infusion system. In this manner, durable polymeric objects can be created without requiring expensive molds. Other techniques are also possible, including varying the types of strands used in an object to create areas of the object that will preferentially twist or flex in certain ways or directions, as well as producing objects with zones having different types of resin or no resin.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: June 15, 2021
    Assignee: Cilag GmbH International
    Inventors: Kevin L. Houser, Peyton L. Hopson, Vincent H. Barre
  • Publication number: 20210169516
    Abstract: Various systems and methods for controlling an ultrasonic surgical instrument according to the location of tissue grasped within an end effector are disclosed. A control circuit can be configured to apply varying power levels, via a generator, to an ultrasonic transducer driving an ultrasonic electromechanical system to oscillate an ultrasonic blade. Further, the control circuit can measure impedances of the ultrasonic transducer corresponding to the varying power levels and determine a location of tissue positioned within the end effector according to a difference between the impedances of the ultrasonic transducer relative to a threshold.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 10, 2021
    Inventors: Kevin L. Houser, David C. Yates, Frederick E. Shelton, IV, Chad P. Boudreaux
  • Patent number: 11026680
    Abstract: A surgical instrument comprising a firing system configured to perform one or more staple firing strokes, a power system, and a control system is disclosed. The firing system comprises a cutting member and an electric motor configured to drive the cutting member through each staple firing stroke and retract the cutting member after each staple firing stroke. The control system comprises a powered operating state in which the power system has enough power to drive the cutting member through a staple firing stroke, a limited-power operating state for placing the surgical instrument in a default condition that has sufficient functionality to retract the cutting member, a firing system lockout configured to prevent the firing system from performing a staple firing stroke when the control system is in the limited-power operating state, and a display configured to indicate that the surgical instrument is in the limited-power operating state.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 8, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, Emily A. Schellin, David C. Yates, Kevin L. Houser