Claims for Patent: 9,498,581

Summary for Patent: 9,498,581

Title:	Reconstitution means for safety device
Abstract:	The present disclosure describes a needle guard device or system that can be used with drugs requiring reconstitution. The needle guard is preferably a passive needle guard that can be used during reconstitution without activating the safety mechanism. Following administration of the medication, the needle guard shields a user from inadvertent needle sticks by extending a protective shield over the needle.
Inventor(s):	Verespej; James M. (San Marcos, CA), Dowds; Philip (San Diego, CA)
Assignee:	Safety Syringes, Inc. (Franklin Lakes, NJ)
Application Number:	13/363,168
Patent Claims:	1. A syringe system for administering lyophilized drugs, the syringe system comprising a needle guard, the needle guard comprising a shield; a body; one or more trigger fingers disposed on the body or shield; and a spring, wherein the spring is configured to bias the shield from a first, retracted position to a second, extended position; wherein the one or more trigger fingers are biased to a latched position to retain the shield in the first, retracted position until the one or more trigger fingers are displaced from the latched position, wherein the shield is free to move to the second, extended position under the bias of the spring when the one or more trigger fingers are displaced from the latched position; a syringe removably coupled with the needle guard, the syringe including a port on a distal, administration end, a cylindrical barrel, and a plunger slidably coupled with the cylindrical barrel; and a clip removably coupled with the needle guard, wherein the clip comprises one or more extensions configured to interact with the shield and body of the needle guard to retain the shield in the first, retracted position when the one or more trigger fingers are displaced from the latched position as the plunger advances distally against the one or more trigger fingers, wherein the one or more trigger fingers return to a latched position when the plunger is withdrawn proximally and the clip is coupled to the needle guard. 2. The syringe system of claim 1, wherein the plunger further comprises a thumb pad, wherein the thumb pad is configured to contact the one or more trigger fingers when the plunger is advanced to a distal position. 3. The syringe system of claim 2, wherein the one or more trigger fingers are activated to an unlatched position when the thumb pad contacts the one or more trigger fingers. 4. The syringe system of claim 3, wherein the one or more trigger fingers relatch to the resting position if the clip is coupled to the needle guard. 5. The syringe system of claim 1, wherein the cylindrical barrel is filled with a diluent. 6. The syringe system of claim 5, wherein the diluent comprises sterile water. 7. The syringe system of claim 5, wherein the diluent comprises saline. 8. The syringe system of claim 1, wherein the port comprises a Luer port. 9. The syringe system of claim 1, wherein the port is configured to receive a needle. 10. The syringe system of claim 1, wherein the clip further comprises a tab configured to prevent removal of the plunger when the plunger is displaced proximally. 11. The syringe system of claim 1, wherein the clip is configured to retain the body and shield in closer proximity to one another than retained by the one or more trigger fingers when the one or more trigger fingers are in the latched position.

Details for Patent 9,498,581

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Merck Sharp & Dohme Corp.	ZOSTAVAX	zoster vaccine live	For Injection	125123	05/25/2006		2028-02-11