Patents by Inventor John Firth

John Firth 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: 20050054987
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation.
    Type: Application
    Filed: October 21, 2004
    Publication date: March 10, 2005
    Inventors: Anthony Perez, John Firth, David Mitchell
  • Publication number: 20050033242
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe.
    Type: Application
    Filed: September 14, 2004
    Publication date: February 10, 2005
    Inventors: Anthony Perez, John Firth, David Mitchell
  • Patent number: 5213557
    Abstract: A device for exercising pelvic floor muscles by insertion into the vagina of a woman comprises at least one weight, and a casing with two or more parts releasably and sealingly connected, to define an internal cavity for receiving one or more of the weights. The cavity is preferably of plastics material, the parts having a snap fit connection, and a retrieval tag may also be incorporated. A set of weights is preferably provided, so that the mass of the device can be varied by choosing one or more of the weights.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 25, 1993
    Inventor: John Firth