초록 ▼

A double-barreled syringe is provided which includes a mixing tip which is detachable after the tip is locked to the syringe body, so that the tip may be replaced by a locking cap. Locking occurs when a neck extending from the body between two shoulders is inserted into a bore in the tip (or, altern

A double-barreled syringe is provided which includes a mixing tip which is detachable after the tip is locked to the syringe body, so that the tip may be replaced by a locking cap. Locking occurs when a neck extending from the body between two shoulders is inserted into a bore in the tip (or, alternatively, the cap) and the tip is rotated so that two symmetrically opposed tabs attached to the tip are each received within a recess determined by a shoulder and a locking rib attached to the shoulder, and two diametrically opposed detents extending from the neck are each received within a recess in the bore surface.

대표청구항 ▼

[ What is claimed is:] [1.] A syringe for dispensing two viscous materials as an admixture, comprising:first and second barrels each bounded at a discharge end by first and second shoulders, respectively, each shoulder having a generally planar surface, the surfaces coplanar and contiguous, a genera

[ What is claimed is:] [1.] A syringe for dispensing two viscous materials as an admixture, comprising:first and second barrels each bounded at a discharge end by first and second shoulders, respectively, each shoulder having a generally planar surface, the surfaces coplanar and contiguous, a generally, cylindrical neck extending from and symmetrically disposed between the shoulders, the neck including first and second outlet passages in fluid communication, respectively, with the first and second barrels;a first mating assembly having opposed first and second detents extending outwardly from the neck, and opposed first and second locking ribs symmetrically disposed with respect to said neck and rigidly attached, respectively, to said first and second shoulders, each rib having a plurality of generally planar locking faces generally parallel to and at a common distance from said shoulder surface;a mixing tip having an inlet end having a generally cylindrical bore determined by a circumferential surface adapted to closely receive said neck, a second mating assembly having opposed generally planar first and second locking tabs symmetrically disposed with respect to said bore, said surface having opposed first and second detent recesses and first and second ramps contiguous at a proximal end, respectively, to said recesses, the mating assemblies conjoining when the neck is inserted into the bore in a relative orientation such that each detent contacts a ramp distal end, thereby determining an engaged configuration, the mating assemblies interlocking when the mixing tip is rotated in a first direction until each detent, traversing the ramp and reaching the ramp proximal end, is received within a recess, and each tab is closely received between one of said pluralities of rib locking faces and a shoulder, the mating assemblies detachable when the mixing tip is rotated in the opposite direction until the neck and bore are in said engaged configuration, and a five section static mixing element disposed within the mixing tip to mix the two viscous materials as the two viscous materials are dispensed from the first and second barrels.