Patents by Inventor Kevin W. Smith

Kevin W. Smith 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).

  • Patent number: 11213793
    Abstract: A cavitation device is supplied by a disc pump with fluids for mixing. A cavitation rotor, having an array of cavities on its cylindrical surface, is fixed to a shaft for rotation by a motor. The disc pump and the cavitation device are beneficially in the same housing. At least one disc is spaced from and attached to the rotor near the inlet end of the cylindrical housing, so it will rotate with the rotor. A central hole in the (at least one) disc permits fluid to enter the space between the disc and the rotor; it is flung toward the peripheral space between the rotor and the cylindrical housing, where it is subjected to cavitation, and then passed to an outlet. The shaft may pass through one or both of the end walls of the cylindrical housing. The cavitation pump is especially useful for mixing oil field fluids.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: January 4, 2022
    Assignee: Highland Fluid Technology, Inc.
    Inventors: Kevin W. Smith, Jeff Fair
  • Patent number: 11183349
    Abstract: A method of adjusting a switch of a device, which comprises using a biasing force-adjusting element, adjusting a magnitude of a biasing force imparted to a switching element of the switch by a biasing element disposed about the switching element, wherein the switching element is movably disposed within an interior cavity of a hollow body of the switch and the biasing force places the switching element in one of a first position and a second position. The first position corresponds to a first electrical state and the second position corresponds to a second electrical state.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 23, 2021
    Assignee: ETHICON ENDO-SURGERY, INC
    Inventor: Kevin W. Smith
  • Patent number: 11172924
    Abstract: A multiple-firing clip device includes a hollow shaft defining a lateral opening communicating with an environment and a distal shaft portion between the lateral opening and a distal end opening. A shuttle longitudinally moves on the shaft and comprises a shuttle body defining a lumen surrounding the shaft, a snare, and a snare-extender slide defining a snare track to form a snare travel path in which the snare is disposed from the body and through the track and a portion of the body. The slide moves along a given extent defining a slide distance and a distal end and movement of the slide to the distal end shortens the snare travel path to extend the snare portion through the lateral opening, through the distal shaft portion, and distally out from a distal side of the body longer than the given extent to secure a suture with the snare.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 16, 2021
    Assignee: Edwards Lifesciences AG
    Inventors: Derek Dee Deville, Kevin W. Smith, Michael Walter Kirk, Carlos Rivera, George Nunez, Thomas O. Bales, Jr., Korey Kline, Matthew A. Palmer, M. Sean McBrayer, Richard George Cartledge, Max Pierre Mendez, Kevin K. Dang, Bryan A. Janish, Manouchehr A. Miraki
  • Patent number: 11172930
    Abstract: A method for manufacturing a surgical instrument to have a manual release, which comprises mechanically coupling a manual release to a transmission of a surgical instrument having a self-contained power source disposed within a handle thereof, the transmission mechanically connecting an electrically-powered motor inside the handle to a movable part of a surgical end effector connected to the handle such that the transmission is operable to displace the movable part to a starting position, an actuated position, and at least one point between the starting position and the actuated position when the motor is operated; and wherein the manual release is operable to interrupt the transmission from operation of the motor and, during interruption, displace the movable part towards the starting position irrespective of the position of the movable part and independent of operation of the motor.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: November 16, 2021
    Assignee: Cilag GmbH International
    Inventors: Kevin W. Smith, Thomas O. Bales, Jr., Derek Dee Deville, Carlos Rivera, Matthew A. Palmer
  • Patent number: 11172931
    Abstract: A method for operating a surgical instrument, which comprises providing a surgical instrument handle, electrically connecting a controller disposed within the surgical instrument handle to a communication connection of a receiving portion of the surgical instrument, removably securing an interchangeable part at the receiving portion, the interchangeable part having an encryption device electrically connected to the communication connection when the interchangeable part is at the receiving portion, authenticating the interchangeable part upon an exchange between the controller and the encryption device, and after at least a partial use of the interchangeable part, storing within the encryption device a used status of the interchangeable part.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: November 16, 2021
    Assignee: Cilag GmbH International
    Inventors: Kevin W. Smith, Thomas O. Bales, Jr., Derek Dee Deville, Carlos Rivera, Matthew A. Palmer
  • Publication number: 20210307825
    Abstract: A controllable stiffness catheter includes a shaft comprising inner and outer sheaths, the sheaths each having proximal and distal ends. The outer surrounds the inner from the proximal to the distal end of the inner sheath, defining an annulus therebetween including a proximal portion having a vacuum connection to which vacuum is applied. The distal ends of the sheaths are longitudinally fixed to one another and sized for neurological vascular procedures. The outer has a substantially constant outer diameter over a distal portion of the annulus proximate to the distal ends. A vacuum device fluidically connects to the vacuum connection and is configured to apply vacuum thereto. Responsive to vacuum, annulus pressure lowers to draw the sheaths toward one another and stiffen the shaft over at least the distal portion to substantially and passively stiffen and maintain a current shape of the shaft over at least the distal portion.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Applicant: Syn Variflex, LLC
    Inventors: Kevin W. Smith, Matthew A. Palmer, M. Sean McBrayer, Thomas O. Bales, JR., Derek Dee Deville, Joe Abelleira
  • Patent number: 11083576
    Abstract: A method of implanting a replacement mitral valve can include expanding a replacement mitral valve to a first expanded configuration. The replacement mitral valve can include a force-expanding mitral valve lattice and a self-expanding valve trampoline lattice. The mitral valve lattice has an inflow end portion and an outflow end portion, and the valve trampoline lattice is attached to the outflow end portion of the mitral valve lattice. The method can also include rotating a plurality of jack screws connected to the mitral valve lattice. The jack screws can be configured to expand the mitral valve lattice from the first expanded configuration to a second expanded configuration.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 10, 2021
    Assignee: Edwards Lifesciences CardiAQ LLC
    Inventors: Richard George Cartledge, Derek Dee Deville, Kevin W. Smith, James L. Greene, Jorge H. Jimenez
  • Publication number: 20210205079
    Abstract: A prosthetic heart valve includes a frame, a valve, and an expansion element. The frame is movable between contracted and expanded configurations and includes first struts and second struts non-hingedly coupled together. The second struts are configured to pivot relative to the first struts as the frame moves between the contracted and expanded configurations. The valve is coupled to the frame and includes leaflets. The expansion element extends through a lumen of the first struts. The expansion element is slidable relative to the lumen of the first struts and is configured to move the frame incrementally from the contracted configuration and the expanded configuration and from the expanded configuration to the contracted configuration.
    Type: Application
    Filed: December 10, 2020
    Publication date: July 8, 2021
    Applicant: Edwards Lifesciences CardiAQ LLC
    Inventors: Richard George Cartledge, Kevin W. Smith, Thomas O. Bales, Jr., Derek Dee Deville, Korey Kline, Max Pierre Mendez, Matthew A. Palmer, Michael Walter Kirk, Carlos Rivera, Eric Petersen, M. Sean McBrayer
  • Publication number: 20210115658
    Abstract: The present disclosure relates to stair systems and methods for allowing stair movement, including rotational movement, between building levels while maintaining the structural integrity of the stair system for safe egress passage and ingress passage. The systems and methods of the present disclosure allow for independent movement of the surrounding building walls, landings, floor slabs, and/or any other portion of the surrounding building structure or stair system. Embodiments of the present disclosure are suitable for use in both new constructions as well as in existing constructions for retrofit applications to allow for movement between levels, landings, or within stairwell structures. The present disclosure can reduce stair damage during building movement whether it is from wind, thermal, explosive, or seismic activity, and/or any other type of suitable force or experience, as the present disclosure allows for rotational movement, longitudinal movement, or a combination thereof.
    Type: Application
    Filed: June 13, 2019
    Publication date: April 22, 2021
    Applicant: EMEH, INC.
    Inventors: Anthony J. Peachy, Robert J. Belvin, Kevin W. Smith, Darko Ostojic
  • Patent number: 10980650
    Abstract: A delivery apparatus can include a handle portion and at least one rotatable drive shaft. The handle portion has an actuation mechanism. The actuation mechanism includes a motor and one or more actuators. The rotatable drive shaft has a proximal end portion and a distal end portion. The proximal end portion is coupled to the motor, and the distal end portion is configured to be releasably coupled to a prosthetic heart valve. The actuation mechanism is configured to control and monitor expansion of the prosthetic heart valve. The handle is configured for actuating the actuation mechanism, tracking a response of native tissue when the prosthetic heart valve is in contact with the native tissue, and stopping expansion of the prosthetic heart valve once a rate of change of expansion of the prosthetic heart valve declines below a threshold.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: April 20, 2021
    Assignee: Edwards Lifesciences CardiAQ LLC
    Inventors: Richard George Cartledge, Kevin W. Smith, Thomas O. Bales, Jr., Derek Dee Deville, Korey Kline, Max Pierre Mendez, Matthew A. Palmer, Michael Walter Kirk, Carlos Rivera, Eric Petersen, M. Sean McBrayer
  • Publication number: 20210107031
    Abstract: A battery-powered, modular surgical device comprising an electrically powered surgical instrument that requires a pre-determined minimum amount of electrical energy to complete a surgical procedure, and a power module assembly that has a battery that powers the surgical instrument and has a current state of electrical charge, and a control circuit that is electrically coupled to the battery and the surgical instrument and has a memory and a microprocessor. The microprocessor determines the current state of electrical charge of the battery, compares the current state of electrical charge to the pre-determined minimum amount of electrical energy, permits the battery to discharge if the current state of electrical charge is above the pre-determined minimum amount of electrical energy, and maintains the battery in a non-discharge state if the current state of electrical charge is below the pre-determined minimum amount of electrical energy.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 15, 2021
    Inventors: Thomas O. Bales, JR., Derek D. Deville, Kevin W. Smith, Matthew A. Palmer
  • Publication number: 20210079283
    Abstract: Heavy fluids are made from calcium bromide and at least one hydrogen bond donor such as a low molecular weight polyol or an organic acid. The combination of a hydrogen bond donor and calcium bromide as a hydrogen bond acceptor in an appropriate molar ratio forms a higher density clear completion fluid at a low temperature not otherwise obtainable with heavy aqueous solutions of calcium bromide such as are used in oilfield wells. A method of making the fluid comprises mixing calcium bromide with the polyol(s) in the presence of water and then reducing the water content, thus forming a heavy fluid. A crystallization inhibitor such as nitrilitriacetamide or a particulate silicate is included in the formulation. When the heavy fluid “freezes,” its physical form is somewhat amorphous and pumpable rather than crystalline. The heavy fluid is useful as a drilling fluid as well as a completion fluid and for other purposes in oil recovery processes where extreme density is beneficial.
    Type: Application
    Filed: October 22, 2020
    Publication date: March 18, 2021
    Applicant: Highland Fluid Technology, Inc.
    Inventor: Kevin W. Smith
  • Publication number: 20210022737
    Abstract: A surgical device comprising a surgical end effector, an actuation assembly having a part operable to move between a first position and a second position, an electrically-powered motor, a transmission mechanically connecting the motor to the part and being operable to selectively displace the part between the first and second positions when the motor is operated, and a manual release mechanically coupled to the transmission to selectively interrupt the transmission and, during interruption, displace the part towards the first position independent of operation of the motor.
    Type: Application
    Filed: August 10, 2020
    Publication date: January 28, 2021
    Inventors: Kevin W. Smith, Thomas O. Bales, JR., Derek Dee Deville, Carlos Rivera, Matthew A. Palmer
  • Publication number: 20210002538
    Abstract: A very light weight, noncompressible drilling fluid including a very light weight hydrocarbon base liquid, and a styrenic butadiene diblock copolymer is heated to achieve excellent rheology including thixotropicity, making an effective drilling fluid with a density of 8 pounds per gallon or less. Densities as low as 4 pounds per gallon are achieved with the addition of glass bubbles. The glass bubbles may, but normally will not, exceed 50% by volume. A method of making the drilling fluid includes passing the light weight liquid and the copolymer through a cavitation device. The invention includes drilling and with and recirculating the fluid to maintain the desired density, viscosity and rheology by adjusting the ingredients accordingly. A method of managed pressure drilling employs the novel fluid, enabling control of drill pressure and physical properties of the fluid including equivalent circulating density.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Applicant: Highland Fluid Technology, Inc.
    Inventor: Kevin W. Smith
  • Patent number: 10874508
    Abstract: An assembly includes a prosthetic heart valve and a delivery apparatus. The prosthetic heart valve has a plurality of pivotably connected struts and one or more adjustable elements rotatably coupled to the struts. Rotating the adjustable elements in a first direction relative to the struts radially expands the prosthetic heart valve. Rotating the adjustable elements in a second direction relative to the struts radially contracts the prosthetic heart valve. The delivery apparatus includes one or more motors, one or more drive wires coupled to the motors, and a memory. The drive wires are coupled to the adjustable elements of the prosthetic heart valve. The motors are configured to rotate the drive wires and the adjustable elements to expand and contract the prosthetic heart valve. The memory is configured for storing one or more characteristics of the motors, the drive wires, or the prosthetic heart valve.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 29, 2020
    Assignee: Edwards Lifesciences CardiAQ LLC
    Inventors: Richard Cartledge, Kevin W. Smith, Thomas O. Bales, Jr., Derek Dee Deville, Korey Kline, Max Pierre Mendez, Matthew A. Palmer, Michael Walter Kirk, Carlos Rivera, Eric Petersen, Sean McBrayer
  • Patent number: 10835274
    Abstract: A method of surgically cutting tissue with an ultrasonic instrument that comprises an ultrasonic waveguide that is movable along a longitudinal extent of the ultrasonic instrument comprises the steps of temporarily compressing tissue between two opposing jaws disposed at a distal end of the ultrasonic instrument, applying a resonant ultrasonic wave to the ultrasonic waveguide, and moving the ultrasonic waveguide in a distal direction along the longitudinal extent to advance the ultrasonic waveguide between at least a portion of the jaws to cut and seal the tissue temporarily secured between the jaws.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: November 17, 2020
    Assignee: Covidien LP
    Inventors: Matthew A. Palmer, Derek Dee Deville, Kevin W. Smith
  • Patent number: 10835112
    Abstract: A variably-flexible device that comprises a hollow body, a steering element that steers a steerable portion of the hollow body, the steering element being comprised of steering tendons disposed within the hollow body, a torque-transmitting element that extends into the steerable portion of the hollow body, and stiffening element disposed within the hollow body to selectively maintain the hollow body in a relatively stiff condition.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 17, 2020
    Assignee: Syntheon, LLC
    Inventors: Kevin W. Smith, Derek Dee Deville, Korey Kline, Matthew A. Palmer
  • Patent number: 10806331
    Abstract: A variably-flexible, locking insertion device includes a hollow body having a proximal end with an entrance for receiving an instrument, a distal end with a tip for protrusion of the instrument, and a handle to be gripped by an operator. A device transitions the hollow body between a relatively flexible condition and a relatively stiff condition. Tendons are disposed within the hollow body for maintaining the hollow body in the relatively flexible and relatively stiff conditions, the tendons being neither in tension nor compression when the hollow body is in the relatively stiff condition.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: October 20, 2020
    Assignee: Syntheon, LLC
    Inventors: Kevin W. Smith, Derek Dee Deville, Korey Kline, Thomas O. Bales, Jr., Matthew A. Palmer, Carlos Rivera
  • Patent number: 10799913
    Abstract: A battery-powered, modular surgical device comprising an electrically powered surgical instrument that requires a pre-determined minimum amount of electrical energy to complete a surgical procedure, and a power module assembly that has a battery that powers the surgical instrument and has a current state of electrical charge, and a control circuit that is electrically coupled to the battery and the surgical instrument and has a memory and a microprocessor. The microprocessor determines the current state of electrical charge of the battery, compares the current state of electrical charge to the pre-determined minimum amount of electrical energy, permits the battery to discharge if the current state of electrical charge is above the pre-determined minimum amount of electrical energy, and maintains the battery in a non-discharge state if the current state of electrical charge is below the pre-determined minimum amount of electrical energy.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 13, 2020
    Assignee: COVIDIEN LP
    Inventors: Thomas O. Bales, Jr., Derek D. Deville, Kevin W. Smith, Matthew A. Palmer
  • Publication number: 20200215504
    Abstract: Viscosity and other properties are determined at desired temperatures in drilling mud and other fluids by using a versatile cavitation device which, operating in the cavitation mode, mixes and heats the fluid to a specified temperature, and, operating in the shear mode, acts as a spindle for application of Couette principles to determine viscosity as a function of shear stress and shear rate. The invention obviates the practice of adjusting rheology of a drilling fluid by passing it through the drill bit. Drilling fluid may be managed by a “straight-through” method to the well, or by placing the cavitation device in a loop which isolates an aliquot of known volume and circulating the fluid through the loop including the cavitation device.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Applicant: Highland Fluid Technology, Inc.
    Inventor: Kevin W. SMITH