Patents by Inventor Larry B. Gray

Larry B. Gray 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: 10995742
    Abstract: An apparatus for determining the volume of fluid dispensed. The apparatus has an acoustic volume sensor that acoustically excites a reference volume and a measurement chamber with a loudspeaker and measures the acoustic response with microphones acoustically coupled to the reference and the measurement chamber. The loudspeaker and sensing microphones are connected to the measurement chamber by separate ports. A detachable dispensing chamber is coupled to the acoustic volume sensor. The volume of the fluid dispensed is determined by a processor based on the acoustic response of the microphones to acoustic excitement by the loudspeaker.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 4, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis, John M. Kerwin, Derek G. Kane
  • Publication number: 20210085858
    Abstract: A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Jonathan Parker, Daniel F. Pawlowski, Dirk A. van der Merwe, Larry B. Gray, Christopher C. Langenfeld, Michael S. Place, Michael J. Slate
  • Publication number: 20210060241
    Abstract: Fill stations and base stations are provided for personal pump systems. The fill stations may be opened and closed to accept a reservoir and to allow fluid to be introduced into the reservoir for use with personal pump systems. The fill stations may hold the reservoir at a tilt relative to an underlying surface and may discourage overfilling of the reservoir. The filling stations may also include viewing windows having fluid lines marked thereon for indicating volume of fluid within the reservoir.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis
  • Patent number: 10933187
    Abstract: A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 2, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: Colin H. Murphy, Dean Kamen, John M. Kerwin, Larry B. Gray
  • Patent number: 10905825
    Abstract: An optical sensor for a delivery device having a piston that displaces a substance, such as a fluid, from a reservoir. The optical sensor has a light source and a detector array for imaging encoding features disposed along a plunger rod coupled to the piston. By virtue of the pattern of encoding features, an absolute position of the plunger rod relative to a fiducial position may be determined uniquely. Thus, the volume of fluid remaining in the reservoir, the rate of fluid delivery, and proper loading of the reservoir may be accurately ascertained. Additionally, the encoding may serve to uniquely identify a version of the reservoir which may be supplied in various versions corresponding, for example, to differing concentrations of a therapeutic agent to be dispensed.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: February 2, 2021
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Marc A. Mandro, Larry B. Gray
  • Publication number: 20210008279
    Abstract: A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 14, 2021
    Inventor: Larry B. Gray
  • Patent number: 10881790
    Abstract: A system is disclosed. The system includes a reservoir for containing a fluidic medium, the reservoir including a front surface, a resilient cylindrical flexure portion connected to the front surface, the resilient cylindrical flexure portion comprising an accordion-like structure that is able to expand and contract to change an interior volume within the resilient cylindrical flexure portion, a central passageway within the resilient cylindrical flexure, and a collection chamber connected to the central passageway. Also, a system including a reservoir, a plunger head located within the reservoir, a plunger arm connected to the plunger head, a driving shaft connected to the plunger arm, and a motor connected to the driving shaft, the motor controllable to move the drive shaft in a first motion and a second motion so as to move the advance plunger head and retract the plunger head within the reservoir.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 5, 2021
    Assignee: DEKA Products Limited Partnership
    Inventor: Larry B. Gray
  • Patent number: 10871157
    Abstract: Embodiments of the present invention relate generally to certain types of reciprocating positive-displacement pumps (which may be referred to hereinafter as “pods,” “pump pods,” or “pod pumps”) used to pump fluids, such as a biological fluid (e.g., blood or peritoneal fluid), a therapeutic fluid (e.g., a medication solution), or a surfactant fluid. The pumps may be configured specifically to impart low shear forces and low turbulence on the fluid as the fluid is pumped from an inlet to an outlet. Such pumps may be particularly useful in pumping fluids that may be damaged by such shear forces (e.g., blood, and particularly heated blood, which is prone to hemolysis) or turbulence (e.g., surfectants or other fluids that may foam or otherwise be damaged or become unstable in the presence of turbulence).
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 22, 2020
    Assignee: DEKA Products Limited Partnership
    Inventors: Brian D. Tracey, Larry B. Gray, Jason A. Demers, James D. Dale, N. Christopher Perry, Michael J. Wilt, Scott A. Leonard
  • Publication number: 20200386220
    Abstract: A peristaltic pump includes a plunger-cam follower, a tube receiver, a spring-biased plunger, a spring, a position sensor, and a processor. The plunger-cam follower engages the plunger cam to follow the plunger cam and to disengage from the plunger cam. The spring-biased plunger is coupled to the plunger-cam follower and the spring biases the spring-biased plunger toward the tube receiver. The position sensor determines a position of the spring-biased plunger when the plunger-cam follower is disengaged from the plunger came. The processor estimates fluid flow utilizing at least the position of the spring-biased plunger as indicated by the position sensor when the plunger-cam follower is disengaged from the plunger cam and the spring biases the spring-biased plunger against the tube.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
  • Patent number: 10857293
    Abstract: A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: December 8, 2020
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Jonathan Parker, Daniel F. Pawlowski, Dirk A. van der Merwe, Larry B. Gray, Christopher C. Langenfeld, Michael S. Place, Michael J. Slate
  • Patent number: 10850029
    Abstract: A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: December 1, 2020
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis
  • Publication number: 20200360602
    Abstract: A medical device for delivery of a fluid to a patient from a line terminating in a tubing needle. The medical device includes a cannula assembly for coupling the fluid into a cannula that is inserted into the patient. The cannula assembly has a first locking element disposed in a fixed position with respect to the cannula. Coupling the line to the cannula assembly is an infusion flap. The infusion flap includes a second locking element for engaging the first locking element of the cannula assembly and a lift tab for disconnecting the infusion flap from the cannula assembly. Coupling of the first and second locking elements requires initial mating of the infusion flap and cannula assembly followed by locking through rotation of the infusion flap with respect to the cannula assembly.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 19, 2020
    Inventors: Larry B. Gray, Jared Hamilton, Richard Lanigan, Brian Tracey
  • Patent number: 10835669
    Abstract: Fill stations and base stations are provided for personal pump systems. The fill stations may be opened and closed to accept a reservoir and to allow fluid to be introduced into the reservoir for use with personal pump systems. The fill stations may hold the reservoir at a tilt relative to an underlying surface and may discourage overfilling of the reservoir. The filling stations may also include viewing windows having fluid lines marked thereon for indicating volume of fluid within the reservoir.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: November 17, 2020
    Assignee: DEKA PRODUCTS LIMITED PARTNERSHIP
    Inventors: Dean Kamen, Larry B. Gray, Russell H. Beavis
  • Publication number: 20200353158
    Abstract: A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Larry B. Gray, Eric Yeaton
  • Publication number: 20200345931
    Abstract: A repeater system may control a pump by using a repeater and a user interface. An adhesive patch system may be used for affixing a pump or other object to a human body. Such an adhesive patch system may include two sets of adhesive members, each member including an adhesive material on at least one side so as to attach to the body. The members of the first set are spaced to allow the members of the second set to attach to the body in spaces provided between the members of the first set, and the members of the second set are spaced to allow members of the first set to detach from the body without detaching the members of the second set. Also, fill stations and base stations are provided for personal pump systems.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Larry B. Gray, Eric Yeaton
  • Patent number: D914195
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: March 23, 2021
    Assignees: DEKA Products Limited Partnership, Carefusion 303, Inc.
    Inventors: Larry B. Gray, Thomas A. Friedrich, Craig A. Dodge, Gregory T. Hulan, Philip T. Pupa, Christopher J. Murray, Edward G. Mitchell
  • Patent number: D914196
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: March 23, 2021
    Assignees: DEKA Products Limited Partnership, Carefusion 303, Inc.
    Inventors: Larry B. Gray, Thomas A. Friedrich, Craig A. Dodge, Christopher J. Murray, Edward G. Mitchell, Gregory T. Hulan, Philip T. Pupa
  • Patent number: D914197
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: March 23, 2021
    Assignees: DEKA Products Limited Partnership, Carefusion 303, Inc
    Inventors: Larry B. Gray, Thomas A. Friedrich, Craig A. Dodge, Gregory T. Hulan, Philip T. Pupa, Christopher J. Murray, Edward G. Mitchell
  • Patent number: D917045
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: April 20, 2021
    Assignee: DEKA Products Limited Partnership
    Inventor: Larry B. Gray
  • Patent number: D918396
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: May 4, 2021
    Assignees: DEKA Products Limited Partnership, Carefusion 303, Inc.
    Inventors: Larry B. Gray, Thomas A. Friedrich, Gregory T. Hulan, Philip T. Pupa, Christopher J. Murray, Edward G. Mitchell