Syringe hub
OwnerDavid Howell Jenkinsinventor
Life of this patent
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Abstract
A syringe hub comprises a hub body which is engagable with a syringe body, a needle held by the hub body, a movable bung element within a flow passage of the hub body, and at least one fixed engagement element which extends laterally to the longitudinal extent of the flow passage and which is non-releasably engagable with the bung element to block a flow path defined by the hub body and the needle. The movable bung element including a cap element which extends laterally to the longitudinal extent of the flow passage and a splayable engagement element which extends from the cap element. The splayable engagement element includes a plurality of legs. A syringe which has a syringe body and the said syringe hub is also provided.
Claims18
A syringe hub comprising a hub body which is removably engageable with a syringe body, a needle fixedly held by the hub body, a moveable bung element within a flow passage of the hub body, the moveable bung element including a cap element which extends laterally to a longitudinal extent of the flow passage and a stopper element configured for at least partial insertion into a lumen of the needle, a splayable engagement element extending from the cap element, the splayable engagement including a plurality of legs, and at least one fixed engagement element which extends laterally to the longitudinal extent of the flow passage and includes at least one shoulder element integrally formed with an interior cavity of the hub body and inwardly projecting into the flow passage;
- wherein in a stop configuration each leg of the plurality of legs non-releaseably engages an inwardly projecting shoulder element such that the stopper element is inserted into the lumen of the needle to block a flow path defined by the hub body and the needle.
A syringe comprising:
- a syringe body;
- a piston assembly slidable within the syringe body;
- and
- a syringe hub including a hub body which is removably engageable with the syringe body, a needle fixedly held by the hub body, a moveable bung element within a flow passage of the hub body, the moveable bung element including a cap element which extends laterally to a longitudinal extent of the flow passage and a stopper element configured for at least partial insertion into a lumen of the needle, a splayable engagement element extending from the cap element, the splayable engagement including a plurality of legs, and at least one fixed engagement element which extends laterally to the longitudinal extent of the flow passage and includes at least one shoulder element integrally formed with an interior cavity of the hub body and inwardly projecting into the flow passage;
- wherein in a stop configuration each leg of the plurality of legs non-releaseably engages an inwardly projecting shoulder element and the bung element is movable by the piston assembly such that the stopper element is inserted into the lumen of the needle to block a flow path defined by the hub body and the needle.
Dependencies are inferred from the claim text.