초록 ▼

A single-use syringe assembly is provided and includes an elongated syringe barrel with a plunger assembly disposed therein. The plunger assembly includes an elongated plunger rod having a plunger tip located distally. The plunger tip contains a locking detent disposed a the distal end of the tip. T

A single-use syringe assembly is provided and includes an elongated syringe barrel with a plunger assembly disposed therein. The plunger assembly includes an elongated plunger rod having a plunger tip located distally. The plunger tip contains a locking detent disposed a the distal end of the tip. The syringe barrel has a nozzle at the substantially closed distal end, the nozzle adapted to conform to the plunger tip. The distal end of the nozzle contains an annular inward biased ring adapted to mate with the locking detent of the plunger tip. Upon usage of the syringe and application of force to apply the liquid, the locking detent is irreversibly mated with the nozzle inwardly biased ring, thereby preventing reuse of the syringe assembly.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus comprising:a barrel having a first end, a second end, an internal surface and a longitudinal axis, said barrel first end having a cap portion at said barrel second end, said cap portion having an inner surface, an outer surface and a port connecting said inne

[ What is claimed is:] [1.] An apparatus comprising:a barrel having a first end, a second end, an internal surface and a longitudinal axis, said barrel first end having a cap portion at said barrel second end, said cap portion having an inner surface, an outer surface and a port connecting said inner surface to said outer surface;a piston having a cross section adapted to substantially conform to said barrel internal surface and central channel;a plunger in communication with a piston, said plunger adapted to move said piston along said barrel longitudinal axis between said barrel first end and said barrel second end; anda locking mechanism in communication with said plunger and adapted to pass through said piston central channel and extend beyond said piston, said locking mechanism further adapted to pass into said port and engage said port, whereby said piston is locked when said plunger is moved to said barrel second end.