Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1987-12-07
1989-03-07
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, 604198, A61M 532
Patent
active
048102482
ABSTRACT:
An improved syringe having a combined safety sheath and needle cap. The syringe is of the type comprising a barrel having a needle extending from the lower end. The sheath is slideably mounted on the barrel between a retracted position and an extended position, to visually indicate when the syringe has been used when the sheath is in the extended position, with means for locking the sheath in the extended position. A needle cap is provided for removal from the needle during use and for the possibility of recapping after use. The improved syringe further comprises a knob extending outwardly from the barrel near the lower end. The sheath has a slot for receiving the knob, the slot having tabs for releasably retaining the sheath in its retracted position releasable upon downward pressure applied to the sheath, and tabs for lockingly engaging the knob to lock the sheath in the extended position. The needle cap comprises a generally cylindrical, hollow tubular body section having a closed first end and an open second end for receiving the needle, with a funnel-shaped lip surrounding the open end and projecting radially and axially outwardly to channel needles into the open end and protect the user's fingers when gripping the cap. The cap further comprising generally triangular-shaped radial splines which extend between the body and the lip. The cap may also comprise a disk-shaped guard projecting radially from the body intermediate the ends or a funnel-shaped guard opening toward the open end and projecting from the body intermediate the ends.
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PCT/US85/00003, Sumner, Syringe Needle Sheath and Shield, 02/12/84.
Sumner, Needlecaps to Prevent Needlestick Injuries, Infection Control, vol. 6, No. 12, p. 495 (1985).
Ebaugh Paul L.
Masters Edwin J.
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