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

Claim 0:
1. 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 tapered female coupler on a proximal region of the barrel member, the tapered female coupler having an opening that receives a complementary tapered male member of a male syringe to couple the female syringe with the male syringe, wherein the female coupler has a structural configuration that prevents the complementary tapered male member of the male syringe from protruding into the internal cavity of the barrel member when the male syringe is coupled to the female syringe, wherein the structural configuration of the female coupler comprises 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 a smooth annular sleeve of the male syringe that surrounds the complementary tapered male member 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.