Patent ID: 11857498
Assignee: INDIVIOR UK LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. A female syringe system, comprising a female syringe formed of:
(i) a barrel member defining an internal cavity and having an internal, proximal-most edge that defines a proximal-most edge of the internal cavity, the barrel member having a proximal opening through which contents can be expelled from the internal cavity;
(ii) a plunger slidably positioned at least partially within the internal cavity, the plunger having a proximal-most tip, wherein the plunger slides within the internal cavity such that the proximal-most tip slides toward the proximal-most edge of the barrel member in a manner that expels contents of the barrel member through the proximal opening of the barrel member; and
(iii) a female coupler on a proximal region of the barrel member, wherein the female coupler couples to a male member of a male syringe, wherein the male syringe includes a smooth, concentric sleeve that surrounds the male member, and wherein the male member is longer in length than the concentric sleeve such that a tip of the male member extends past a tip of the concentric sleeve, and wherein the male member and the female coupler have complementary tapers that limit a depth of insertion of the male member into the female coupler, and wherein the female coupler includes at least one lug thread member that threadedly mates with a complementary thread of the male syringe, the at least one lug thread member positioned solely on a proximal-most edge of the female coupler wherein the female coupler comprises a cylindrical body having an entirely smooth outer surface, the outer surface being entirely smooth except for the at least one lug thread; wherein the male syringe has a male syringe housing that defines both a male syringe internal cavity and the concentric sleeve of the male syringe; and wherein a longitudinal length of the female coupler is longer by an excess length than a length of the annular sleeve of the male syringe that surrounds the complementary tapered male member of the male syringe, wherein the excess length is equal to a protrusion length by which the complementary tapered male member extends longitudinally beyond the annular sleeve.