Patent ID: 9352093
Filing Date: 2016-05-31
CPC Classification: A61M

Claim Text:
1. A safety syringe comprising: a barrel; a plunger; and a mobile component; the barrel having a proximal end and a distal end, the distal end configured with a mobile component stop and a needle opening; the plunger being configured with a plunger stopper slidingly and sealingly engaged within the barrel, and a plunger handle extended from the proximal end of the barrel by which the plunger stopper may be moved longitudinally within the barrel; the mobile component being slidingly and sealingly engaged within the barrel and configured with a port connecting an inboard face facing the plunger stopper with an outboard face facing the distal end of the barrel, the outboard face being configured to accept attachment of a needle whereby an axial bore through the needle is in communication with the port; the mobile component and the barrel being cooperatively configured with a lock and release mechanism whereby the mobile component is lockable in a fixed position at the distal end of and within the barrel, the port having a valve mechanism operable to open and close the port to fluid flow; the lock and release mechanism being configured with at least one locking bar extendable radially outward by operation of the plunger for engagement with the barrel for locking the mobile component in place; and the valve mechanism comprising motion of the at least one locking bar between a position where the port is unobstructed and a position where the port is closed.