Needle anti-resheather

Details Needle anti-resheather Needle anti-resheather

1988-08-24

1989-05-30

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

048347159

ABSTRACT:
An anti-resheathing device for preventing a needle sheath from re-engaging the hub of a needle after the sheath has been disengaged from the hub when the needle hub has been inserted in a needle retention socket. The sheath has a pre-determined exterior dimension in that portion of the sheath adjacent the needle retention socket. A wall extends outwardly from the socket toward the sheath, and has an interior dimension less than the exterior dimension of the sheath and is constructed of a displaceable material having a memory such that the wall is displaced to accommodate the sheath when the hub is inserted within the socket. When the sheath is then removed from the hub, the wall returns to a substantially undisplaced orientation and, due to the exterior dimension of the wall, prevents the sheath from being re-engaged on the hub.

REFERENCES:
patent: 3485239 (1969-12-01), Vanderbeck
patent: 4220151 (1980-09-01), Whitney
patent: 4300678 (1981-11-01), Gyure et al.
patent: 4475903 (1984-10-01), Steenhuisen et al.

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