Larry W Pitts

US Patent:

53225155, Jun 21, 1994

Filed:

Mar 15, 1993

Appl. No.:

8/031789

Inventors:

Peter J. Karas - Libertyville IL
Larry W. Pitts - Libertyville IL
John C. Tanner - Lake Bluff IL

Assignee:

Abbott Laboratories - Abbott Park IL

International Classification:

A61M 532

US Classification:

604192

Abstract:

A luer adapter assembly for a prefilled emergency syringe includes a cylindrical sheath which extends coaxially with the syringe needle. The sheath can be integrally molded with the injector housing or is attached to the syringe injector housing by spin welding or sonic welding. The sheath is joined to the housing so that an annular clearance space for the removable luer adapter assembly is maintained between the tapered hub and the sheath. A removable cap on a threaded lock on the adapter extension is removed by twisting the cap in a first direction. The whole adapter assembly is removed from the tapered hub by twisting the cap in a second direction which is the same direction as the threads of the threaded lock.