Luer-type connector

Details Luer-type connector Luer-type connector

1995-03-22

1997-07-29

Rimell, Sam

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604905, 285332, 285354, A61M 2500

Patent

active

056517769

ABSTRACT:
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.

REFERENCES:
patent: 2562294 (1951-07-01), Cahenzli, Jr.
patent: 3876234 (1975-04-01), Harms
patent: 4046479 (1977-09-01), Paley
patent: 4735441 (1988-04-01), Stephens
patent: 4893844 (1990-01-01), Chelette et al.
patent: 5078433 (1992-01-01), Morse et al.
patent: 5156421 (1992-10-01), Chauvel
patent: 5509911 (1996-04-01), Cottone, Sr. et al.

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