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Safety injectors

  • US 6,808,507 B2
  • Filed: 05/10/2002
  • Issued: 10/26/2004
  • Est. Priority Date: 05/10/2002
  • Status: Expired due to Fees
First Claim
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1. A single use injector device for dispensing medication from a pre-filled syringe and sealing the syringe in the device after use, the pre-filled syringe including a barrel open with a flange at one end and having a needle mounted in a hub at an opposite end, a plunger slidably mounted in the barrel having a stopper at one end engaging a predetermined dose of a drug and a flange at an opposite end, the single use injector device comprising:

  • a housing, a spring located in a lumen of the housing for engaging the hub of the barrel of the syringe, a cap slidably mounted on the housing for progressively moving along a longitudinal axis of the housing while the needle of the syringe is moved from an interior of the housing to an exterior of the housing and delivery of the predetermined dose of the drug and retraction of the needle into the housing after use to prevent exposure to the used needle, and one end of said housing being sealed with an adherent foil having a pull-tab for removal of the foil and leaving an exposed adhesive surface at the one end of the housing.

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