Needle safety system
AssigneeWest Pharmaceutical Services, Inc.
InventorsTerry McElroy, Colin Dowling, Patrick Dowling, Martin McGarry
Life of this patent
Estimating the term…
Abstract
A syringe safety system may include a sleeve. The sleeve may include a guide track formed in the sleeve. The guide track may have a guide pin retention portion, a travel portion, and a lockout portion. The syringe safety system may include a collar having a guide pin extending radially from an exterior surface of the collar. A spring may extend between and be coupled to the collar and the sleeve. A cap may engage the sleeve. The cap may be configured to retain the guide pin in the guide pin retention portion of the guide tack. When the cap is removed, the spring advances the guide pin into the travel portion of the guide track.
Claims21
A needle safety system for use with a syringe, the needle safety system comprising:
- a sleeve defining a guide track and the guide track having-a guide pin retention portion, a travel portion, and a lockout portion;
- a collar configured to be coupled to a portion of the syringe and having-a guide pin radially extending from an exterior surface of the collar,
- a torqueable compression spring that is configured to apply a translational biasing force between the collar and the sleeve and a rotational biasing force between the guide pin and the sleeve preventing movement of the guide pin in a direction opposite to a guide pin biasing direction of the rotational biasing force;
- and
- a cap that is configured to directly engage with the guide pin to retain the guide pin in the guide pin retention portion of the guide track when the cap is coupled to the sleeve,
- wherein, when the cap is removed from the sleeve, the torqueable compression spring is configured to advance the guide pin into the travel portion of the guide track.
Dependencies are inferred from the claim text.