초록 ▼

A luer-type adapter has a dual instead of a single set of engaging screw threads. A proximal and a distal screw thread on the hub engage proximal and distal screw threads on the collar of the connector to provide at least twice the engaging or sealing force between the tapered surfaces of the stem a

A luer-type adapter has a dual instead of a single set of engaging screw threads. A proximal and a distal screw thread on the hub engage proximal and distal screw threads on the collar of the connector to provide at least twice the engaging or sealing force between the tapered surfaces of the stem and hub which are forced together by rotating the collar relative to the hub to engage the two sets of threads. The diameters of the engaging distal screw threads have to be sufficiently great so that the proximal screw thread on the hub can pass under the distal screw thread on the collar in order to effect proximal as well as distal engagement. An O-ring mounted on an untapered distal segment of the stem engages an untapered inner hub surface to provide additional sealing force which is particularly useful where gas is being provided through the adapter.

대표청구항 ▼

In a luer-type adapter having engaging tapered surfaces on a mating stem and hub, the mating surfaces being an outer surface of the stem and an inner surface of the hub, and having a collar surrounding the stem, the improvement comprising; proximal and distal threads on awl inner surface of said col

In a luer-type adapter having engaging tapered surfaces on a mating stem and hub, the mating surfaces being an outer surface of the stem and an inner surface of the hub, and having a collar surrounding the stem, the improvement comprising; proximal and distal threads on awl inner surface of said collar and proximal and distal threads on an outer surface of said hub, said proximal collar and hub threads being positioned and dimensioned to engage one another, said distal collar and hub threads being positioned and dimensioned to engage one another, the crest diameter of said distal collar thread being greater than the crest diameter of said proximal hub thread, wherein said proximal and distal threads of said hub simultaneously engage said proximal and distal threads of said collar, and said mating stem is sealed with said hub by rotating one of said collar and said hub substantially 180 degrees.