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US 7,390,319 B2Granted
Automatic needle injector having safety triggering mechanism
OwnerSteven Friedmaninventor
Life of this patent
Estimating the term…
Abstract
A card-shaped disposable auto-injector includes a two-step safety mechanism to prevent inadvertent use or activation of the injection mechanism. In one aspect, the auto-injector is sized and shaped so as to be easy to carry in a wallet-shaped case. In one aspect, it is rectangular in shape so as to facilitate carrying and storage, and to provide a relatively large amount of surface space for instructional text, diagrams, identifying information, warnings, and the like.
Claims20
An injector, comprising:
- a casing having an opening;
- a syringe, located within the casing, for holding medication;
- a trigger, coupled to the syringe and having at least a safe position and an injection-ready position, for initiating transmission of the medication in response to a) the trigger being in injection-ready position and b) force being applied to a bottom surface of the trigger;
- a lever, engaged with the casing, for causing the trigger to move from the safe position into the injection-ready position by moving the syringe in a first direction along a first axis;
- a first magnet coupled to at least one of the syringe and the trigger;
- a second magnet coupled to the casing;
- and
- a needle, coupled to the syringe, for, responsive to initiation by the trigger, transmitting medication from the syringe into an injection site on a patient;
- the magnets being situated to engage with one another so as to assist movement of the trigger into the injection-ready position.
6 more elements
An injector, comprising:
- a casing having an opening;
- a syringe, located within the casing, for holding medication;
- a trigger, coupled to the syringe and having at least a safe position and an injection-ready position, for initiating transmission of the medication in response to a) the trigger being in injection-ready position and b) force being applied to a bottom surface of the trigger;
- a lever, engaged with the casing, for causing the trigger to move from the safe position into the injection-ready position by moving the syringe in a first direction along a first axis;
- a spring coupled to at least one of the syringe and the trigger, the spring biased to assist movement of the trigger into the injection-ready position;
- and
- a needle, coupled to the syringe, for, responsive to initiation by the trigger, transmitting medication from the syringe into an injection site on a patient;
- wherein the spring causes at least one of the trigger and syringe to move in a second direction along a second axis substantially perpendicular to the first axis.
5 more elements
Dependencies are inferred from the claim text.