Patents by Inventor Daniel M. Hartmann

Daniel M. Hartmann 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: 20220000718
    Abstract: A drug container assembly for use with a parenteral drug delivery device is disclosed. The container assembly includes a container configured to hold the medication and an intermediate port connector. The port connector may be fixedly coupled to the container and removably coupled to the delivery device in a convenient, reliable, and sealed manner In use, the port connector may convey the medication from the container to the delivery device for delivery to the patient.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Inventors: Akshay R. Kamdar, Daniel M. Hartmann, Gavin M. McKeown, James A. Davies
  • Patent number: 11129772
    Abstract: A drug container assembly for use with a parenteral drug delivery device is disclosed. The container assembly includes a container configured to hold the medication and an intermediate port connector. The port connector may be fixedly coupled to the container and removably coupled to the delivery device in a convenient, reliable, and sealed manner. In use, the port connector may convey the medication from the container to the delivery device for delivery to the patient.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: September 28, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: Akshay R. Kamdar, Daniel M. Hartmann, Gavin M. McKeown, James A. Davies
  • Patent number: 10612711
    Abstract: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or decreases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow is be restricted or increased as may be desired.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 7, 2020
    Assignee: IDEX Health & Science LLC
    Inventors: Daniel M. Hartmann, Efthimios Tsirlis
  • Patent number: 10569224
    Abstract: A device which includes a pulse dampener and a degasser or de-bubbler. The device includes a fluid flow path and a fluid chamber located within the device. In addition, the device includes a pulse dampening membrane for dampening pulses in the fluid as it flows through the device. The device also includes a degassing membrane for degassing the fluid as it flows through the device, and/or a de-bubbling membrane for removing gas bubbles from the fluid as it flows through the device. The degassing or de-bubbling membrane can be separate and distinct from the dampening membrane. The de-bubbling membrane can be in addition to or in place of the degassing membrane in some embodiments.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 25, 2020
    Assignee: IDEX Health & Science LLC
    Inventors: Daniel M. Hartmann, Carl Sims, David Steckman, Leanne Elson
  • Publication number: 20190374434
    Abstract: A drug container assembly for use with a parenteral drug delivery device is disclosed. The container assembly includes a container configured to hold the medication and an intermediate port connector. The port connector may be fixedly coupled to the container and removably coupled to the delivery device in a convenient, reliable, and sealed manner In use, the port connector may convey the medication from the container to the delivery device for delivery to the patient.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 12, 2019
    Inventors: Akshay R. Kamdar, Daniel M. Hartmann, Gavin M. McKeown, James A. Davies
  • Patent number: 10113995
    Abstract: A rotary shear valve having a rotor device and a stator device both with planar faces. The stator face includes a central port located at a common rotational axis, a second port radially spaced a radius R1 from the central port, and a third port spaced at radius R2. The second and third ports are in general linear alignment with the central port. The rotor face includes a first rotor groove extending radially outward from the common rotational axis to a position at radius R2 from the central port. The rotor device is rotatably mounted to the stator device for rotation thereof about the axis, providing fluid-tight, selective relative rotation therebetween between two or more discrete rotor positions. When in a discrete first rotor position, the first rotor groove is oriented in radial alignment with, and fluidly connects, the central port and the second port with the third port.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: October 30, 2018
    Assignee: IDEX Health & Science LLC
    Inventors: Daniel M. Hartmann, Darren Lewis, Jon Nichols, Jim Smyth
  • Publication number: 20180051840
    Abstract: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or deceases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow is be restricted or increased as may be desired.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 22, 2018
    Inventors: Daniel M. Hartmann, Efthimios Tsirlis
  • Publication number: 20180001265
    Abstract: A device which includes a pulse dampener and a degasser or de-bubbler. The device includes a fluid flow path and a fluid chamber located within the device. In addition, the device includes a pulse dampening membrane for dampening pulses in the fluid as it flows through the device. The device also includes a degassing membrane for degassing the fluid as it flows through the device, and/or a de-bubbling membrane for removing gas bubbles from the fluid as it flows through the device. The degassing or de-bubbling membrane can be separate and distinct from the dampening membrane. The de-bubbling membrane can be in addition to or in place of the degassing membrane in some embodiments.
    Type: Application
    Filed: August 29, 2017
    Publication date: January 4, 2018
    Inventors: Daniel M. Hartmann, Carl Sims, David Steckman, Leanne Elson
  • Patent number: 9829140
    Abstract: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or decreases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow to be restricted or increased as may be desired.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: November 28, 2017
    Assignee: IDEX Health & Science LLC
    Inventors: Daniel M. Hartmann, Efthimios Tsirlis
  • Patent number: 9764290
    Abstract: A device which includes a pulse dampener and a degasser or de-bubbler. The device includes a fluid flow path and a fluid chamber located within the device. In addition, the device includes a pulse dampening membrane for dampening pulses in the fluid as it flows through the device. The device also includes a degassing membrane for degassing the fluid as it flows through the device, and/or a de-bubbling membrane for removing gas bubbles from the fluid as it flows through the device. The degassing or de-bubbling membrane can be separate and distinct from the dampening membrane. The de-bubbling membrane can be in addition to or in place of the degassing membrane in some embodiments.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: September 19, 2017
    Assignee: IDEX Health & Science LLC
    Inventors: Daniel M. Hartmann, Carl Sims, David Steckman, Leanne Elson
  • Publication number: 20160296858
    Abstract: A device which includes a pulse dampener and a degasser or de-bubbler. The device includes a fluid flow path and a fluid chamber located within the device. In addition, the device includes a pulse dampening membrane for dampening pulses in the fluid as it flows through the device. The device also includes a degassing membrane for degassing the fluid as it flows through the device, and/or a de-bubbling membrane for removing gas bubbles from the fluid as it flows through the device. The degassing or de-bubbling membrane can be separate and distinct from the dampening membrane. The de-bubbling membrane can be in addition to or in place of the degassing membrane in some embodiments.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 13, 2016
    Inventors: Daniel M. Hartmann, Carl Sims, David Steckman, Leanne Elson
  • Publication number: 20160201837
    Abstract: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or decreases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow to be restricted or increased as may be desired.
    Type: Application
    Filed: January 8, 2015
    Publication date: July 14, 2016
    Inventors: Daniel M. Hartmann, Efthimios Tsirlis
  • Publication number: 20160139094
    Abstract: A rotary shear valve having a rotor device and a stator device both with planar faces. The stator face includes a central port located at a common rotational axis, a second port radially spaced a radius R1 from the central port, and a third port spaced at radius R2. The second and third ports are in general linear alignment with the central port. The rotor face includes a first rotor groove extending radially outward from the common rotational axis to a position at radius R2 from the central port. The rotor device is rotatably mounted to the stator device for rotation thereof about the axis, providing fluid-tight, selective relative rotation therebetween between two or more discrete rotor positions. When in a discrete first rotor position, the first rotor groove is oriented in radial alignment with, and fluidly connects, the central port and the second port with the third port.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 19, 2016
    Inventors: Daniel M. HARTMANN, Darren LEWIS, Jon Nichols, Jim Smyth
  • Patent number: 8021130
    Abstract: Apparatus and Method for Handling Fluids at Nano-Scale Rates. A linear displacement pump produces non-pulsatile liquid flow rates as low as the nl/mm range. The pump includes a servo motor, a gear reduction, a lead screw, a linear stage, a barrel, and a plunger extending into the barrel and coupled to the stage. A microfluidic interconnect device can be coupled to the barrel. One or more of these pumps can be disposed in a thermally controlled pump assembly that includes a pump housing, a thermally conductive body disposed in the housing and including first and second opposing sides, and a temperature regulating element such as a thermoelectric device disposed in thermal contact with the thermally conductive body on a side thereof opposite to the barrel or barrels of the pumps.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: September 20, 2011
    Assignee: AB Sciex, LLC
    Inventors: Gregory A. Votaw, Charles A. Buckner, Daniel M. Hartmann, William Karsh, Frank Anthony Montefusco, Joshua T. Nevill, Mehul Patel, David W. Wyrick, Hugh C. Crenshaw
  • Patent number: 7933012
    Abstract: According to one embodiment, apparatuses and methods are provided for connecting a light-guiding conduit to a microfluidic channel. First and second substrates with first surfaces can be provided, wherein the first surfaces of the first and second substrates form a microfluidic channel and a connection channel when the first surfaces are positioned together, and wherein the connection channel extends from an edge of the first surface of the first or second substrate to the microfluidic channel. The apparatus and method can also include bonding the first surfaces of the first and second substrates to form the microfluidic channel and the connection channel. A light-guiding conduit can be inserted into the connection channel such that the light-guiding conduit connects to the microfluidic channel and filling an area between the light-guiding conduit and the connection channel for forming a liquid-tight seal between the light-guiding conduit and the connection channel.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: April 26, 2011
    Assignee: AB Sciex LLC
    Inventors: Daniel M. Hartmann, Joshua T. Nevill, Pang-Jen Craig Kung, Kenneth I. Pettigrew, Brian Herbert Warrington, Hugh C. Crenshaw
  • Patent number: 7771630
    Abstract: High performance microlens arrays are fabricated by (i) depositing liquid on the hydrophilic domains of substrates of patterned wettability by either (a) condensing liquid on the domains or (b) withdrawing the substrate from a liquid solution and (ii) optionally curing the liquid to form solid microlenses. The f-number (f#) of formed microlenses is controlled by adjusting liquid viscosity, surface tension, density, and index of refraction, as well as the surface free energies of the hydrophobic and hydrophilic areas. The f-number of formed microlenses is also adjustable by controlling substrate dipping angle and withdrawal speed, the array fill factor and the number of dip coats used. At an optimum withdrawal speed f# is minimized and array uniformity is maximized. At this optimum, arrays of f/3.48 microlenses were fabricated using one dip-coat with uniformity better than ?f/f˜±3.8% while multiple dip-coats permit production of f/1.38 microlens arrays and uniformity better than ?f/f˜±5.9%.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: August 10, 2010
    Assignee: The Regents of the University of California
    Inventors: Daniel M. Hartmann, Sadik C. Esener, Osman Kibar
  • Publication number: 20090268548
    Abstract: Microfluidic Systems, Devices and Methods for Reducing Diffusion and Compliance Effects at a Fluid Mixing Region. According to one embodiment, a microfluidic device is provided for combining fluids in a mixing region. The microfluidic device can include a fluid mixing region connected to a first and second microscale channel. The microscale channels can advance fluids to the fluid mixing region. The microscale channels can include constricted flow portions. According to another embodiment, the microscale channels can be connected to waste channels for removing fluid diffused into one of the channels from the other channel. According to yet another embodiment, a microfluidic system is provided for controlling the flow of fluids through the microscale channels for reducing or eliminating diffusion between the channels.
    Type: Application
    Filed: August 10, 2006
    Publication date: October 29, 2009
    Applicant: EKSIGENT TECHNOLOGIES, LLC
    Inventors: Daniel M. Hartmann, Joshua T. Nevill, Gregory A. Votaw, Hugh C. Crenshaw
  • Publication number: 20090147253
    Abstract: Microfluidic Chip Apparatuses, Systems, and Methods having Fluidic and Fiber Optic Interconnections. According to one embodiment, apparatuses and methods are provided for connecting a light-guiding conduit to a microfluidic channel. First and second substrates with first surfaces can be provided, wherein the first surfaces of the first and second substrates form a microfluidic channel and a connection channel when the first surfaces are positioned together, and wherein the connection channel extends from an edge of the first surface of the first or second substrate to the microfluidic channel. The apparatus and method can also include bonding the first surfaces of the first and second substrates to form the microfluidic channel and the connection channel.
    Type: Application
    Filed: August 10, 2006
    Publication date: June 11, 2009
    Applicant: EKSIGENT TECHNOLOGIES, LLC
    Inventors: Daniel M. Hartmann, Joshua T. Nevill, Pang-Jen Craig Kung, Kenneth I. Pettigrew, Brian Herbert Warrington, Hugh C. Crenshaw
  • Publication number: 20090145576
    Abstract: An actively temperature regulated microfluidic chip assembly includes a first thermally conductive body, a second thermally conductive body attached to the first thermally conductive body, a microfluidic chip encapsulated between the first and second thermally conductive bodies, and a temperature regulating element mounted to the first thermally conductive body for adding heat to or alternately removing heat from the chip. The temperature of the chip and thus the liquid contained and/or flowing therein can be regulated by measuring the temperature of the liquid and operating the temperature regulating element to establish a thermal gradient toward or alternately away from the liquid based on the measured temperature and in comparison with a desired set point temperature.
    Type: Application
    Filed: August 10, 2006
    Publication date: June 11, 2009
    Applicant: EKSIGENT TECHNOLOGIES, LLC
    Inventors: David W. Wyrick, Daniel M. Hartmann, Joshua T. Nevill, Mehul Patell, Michael G. Pollack, Gregory A. Votaw, Hugh C. Crenshaw
  • Publication number: 20090140170
    Abstract: According to one embodiment, a microfluidic system and method is disclosed for reducing autofluorescence. The microfluidic system can include a light source for generating an excitation light. The microfluidic system can also include a microscope having an objective for focusing the excitation light on a fluid inside a microfluidic channel of a microfluidic chip. Further, the microfluidic system can include a detector for rejecting out-of-focus light emitted from the microfluidic chip.
    Type: Application
    Filed: August 10, 2006
    Publication date: June 4, 2009
    Applicant: EKSIGENT TECHNOLOGIES, LLC
    Inventors: Joshua T. Nevill, Eric T. Espenhahn, Daniel M. Hartmann, Gregory A. Votaw, Hugh C. Crenshaw