L.o.m. Laboratories Inc.

Ralph E Woloschuk

Warren Marc Terry

Scott E Castanon

Joseph James Baker

A pneumatically activated retractable-needle syringe comprising a syringe barrel, a plunger, a needle, a needle hub, a locking tip, a propellant gas release cell and a rupture mechanism is provided. The plunger has a retraction lumen defined therein for receiving the needle when the retractable-needle syringe is actuated.

Retractable needle syringe

A modular retractable needle assembly having a unitary propellant release structure is provided. The modular retractable needle assembly can be coupled to a suitable syringe. A modular filler needle can be provided that is engageable to the syringe. Kits comprising the modular retractable needle assembly, one or more syringes, and a modular filler needle are provided.

Retractable needle syringe with unitary propellant release module

Blood collection devices having a retractable needle are provided. Activation of the retraction mechanism causes release of propellant from a propellant chamber, which drives a retraction assembly carrying the needle into a body of the device.

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St. Albert, Canada

Ralph E Woloschuk