Abstract: An automatically shieldable blood collection set is provided. The blood collection set includes a needle assembly having a hub to which a needle cannula is fixedly attached. The needle hub includes a fin formed with a latch. A safety shield is telescoped relative to the hub and the needle cannula and can be moved from a proximal position where the needle cannula is exposed to a distal position where the needle cannula is safely shielded. The latch on the fin releasably engages the shield when the shield is in the proximal position. A spring is provided between the shield and the hub to propel the shield distally relative to the hub and into surrounding relationship with the needle cannula in response to movement of the latch.

Abstract: An automatically shieldable blood collection set is provided. The blood collection set includes a needle assembly having a hub to which a needle cannula is fixedly attached. A safety shield is telescoped relative to the hub and the needle cannula and can be moved from a proximal position where the needle cannula is exposed to a distal position where the needle cannula is safely shielded. A spring is provided between the shield and the hub to propel the shield distally relative to the hub and into surrounding relationship with the needle cannula. A retainer is provided for releasably holding the shield in a proximal ready-to-use condition relative to the hub and the needle cannula. An actuator releases the retainer and enables the shield to be propelled by the spring. A lock may be provided for preventing inadvertent re-exposure of the needle cannula.

Abstract: An automatically shieldable blood collection set is provided. The blood collection set includes a needle assembly having a hub to which a needle cannula is fixedly attached. A safety shield is telescoped relative to the hub and the needle cannula and can be moved from a first position where the needle cannula is exposed to a second position where the needle cannula is safely shielded. A spring is provided between the shield and the hub to propel at least one of the shield and the hub into the second position. A retainer is provided for releasably holding the shield and the hub in the first position. A resiliently deflectable dorsal fin projects from the hub and through a slot in the shield. The dorsal fin can be deflected to release the retainer and permit the spring to drive the shield end up to the second position. The slot in the shield is configured to lockingly engage the dorsal fin when the shield and the hub are in the second position.