Patents by Inventor Hardie Johnson

Hardie Johnson 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).

  • Drug delivery system with profiles
    Patent number: 6945954
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: September 20, 2005
    Assignee: Milestone Scientific, Inc.
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Pressure/force computer controlled drug delivery system with automated charging
    Patent number: 6887216
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: May 3, 2005
    Assignee: Milestone Scientific, Inc.
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Pressure/force computer controlled drug delivery system with exit pressure control
    Patent number: 6786885
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: September 7, 2004
    Assignee: Milestone Scientific Inc
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Drug delivery system with profiles
    Publication number: 20030078534
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Application
    Filed: January 22, 2001
    Publication date: April 24, 2003
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Pressure/force computer controlled drug delivery system with automated charging
    Publication number: 20020052574
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Application
    Filed: January 22, 2001
    Publication date: May 2, 2002
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Pressure/force computer controlled drug delivery system with exit pressure control
    Publication number: 20020016567
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Application
    Filed: January 22, 2001
    Publication date: February 7, 2002
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood
  • Pressure/force computer controlled drug delivery system and the like
    Patent number: 6200289
    Abstract: An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller which generates corresponding commands to the drive mechanism. In a particularly advantageous embodiment, the characteristic is used to calculate an exit pressure at which fluid ejected by the device through an elongated tube. The drive mechanism is then operated in such a manner that the exit pressure is maintained at a predetermined level to insure that a patient does not suffer pain and/or tissue damage.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: March 13, 2001
    Assignee: Milestone Scientific, Inc.
    Inventors: Mark Hochman, Claudia Hochman, Angelo Ascione, Lawrence Brown, Hardie Johnson, Michelle Lockwood