Patents by Inventor Penelope Attridge

Penelope Attridge 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: 20070005022
    Abstract: An auto-disable syringe is disclosed which prevents re-use of the syringe whetver dose is delivered on the first use. A restrictor bobbin comprises two elements: a plunger lock 1 and a barrel lock 20 which are relatively freely movable for a limited distance. The barrel lock includes a barb 27 which engages with the barrel interior wall to prevent proximal movement of the barrel lock, whilst the plunger lock includes a barb 6 which engages with the plunger to prevent distal movement of the plunger withy respect to the barrel lock. The plunger lock includes a further barb 9 which is engageable with the plunger to prevent proximal movement of the plunger. A lock release 40 inlcudes a latch tine 53 which, in the syringe as shipped, prevents engagement of the barb 9 with the plunger. After withdrawal of fluid, e.g. a liquid medicament, initial distal movement of the plunger causes the latch 53 to disengage with the barb 9, thereby preventing any further proximal movement of the plunger.
    Type: Application
    Filed: June 20, 2005
    Publication date: January 4, 2007
    Applicant: BTG International Limited
    Inventors: Phillip Byrne, Penelope Attridge, Harry Ingham, John Polidoro, Spencer Kinsey, Chad Smutney
  • Publication number: 20050261635
    Abstract: An auto-disable syringe is disclosed which prevents re-use of the syringe whetver dose is delivered on the first use. A restrictor bobbin comprises two elements: a plunger lock 1 and a barrel lock 20 which are relatively freely movable for a limited distance. The barrel lock includes a barb 27 which engages with the barrel interior wall to prevent proximal movement of the barrel lock, whilst the plunger lock includes a barb 6 which engages with the plunger to prevent distal movement of the plunger withy respect to the barrel lock. The plunger lock includes a further barb 9 which is engageable with the plunger to prevent proximal movement of the plunger. A lock release 40 inlcudes a latch tine 53 which, in the syringe as shipped, prevents engagement of the barb 9 with the plunger. After withdrawal of fluid, e.g. a liquid medicament, initial distal movement of the plunger causes the latch 53 to disengage with the barb 9, thereby preventing any further proximal movement of the plunger.
    Type: Application
    Filed: June 20, 2005
    Publication date: November 24, 2005
    Applicant: BTG International Limited
    Inventors: Phillip Byrne, Penelope Attridge, Harry Ingham, John Polidoro, Spencer Kinsey, Chad Smutney