Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1988-03-01
1991-10-22
Green, Randall L.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604263, 128763, A61M 532
Patent
active
050591851
ABSTRACT:
Improved shielded medical devices which minimize accidental needlesticks of the skin by an exposed contaminated needle are provided. The medical devices includes a hollow inner tube body having a pair of circumferential grooves on the outside thereof, and a slightly larger diameter hollow shield which is slidable relative to the inner tube. Lugs circumferentially spaced about the rearward end of the shield yieldingly engage the rearward grooves during use of the medical device and thereby permit normal use of an exposed needle. Thereafter the shield may be moved along the axis of the inner tube to a second position wherein the shield covers the now-contaminated needle. A plurality of axial slits in the rearward end of the shield in conjunction with a shoulder on the inner tube body forwardly adjacent a forward circumferential groove permit the medical devices to be assembled. The slits also permit the shield to move along the ramped outer wall of the inner tube during movement of the shield into its shielding position. In the unshielded position of the medical devices, a plurality of teeth on the forward end of the inner tube engage notches in the forward end of the outer shield to prevent rotational movement there-between during use of the medical devices.
REFERENCES:
patent: 2571653 (1951-10-01), Bastyen
patent: 3073306 (1963-01-01), Linder
patent: 3469581 (1969-09-01), Burke
patent: 4356822 (1982-11-01), Winstead-Hall
patent: 4417887 (1983-11-01), Koohi
patent: 4425120 (1984-01-01), Sampson et al.
patent: 4573976 (1986-03-01), Sampson et al.
patent: 4631057 (1986-12-01), Mitchell
patent: 4643199 (1987-02-01), Jennings et al.
patent: 4655751 (1987-04-01), Harbaugh
patent: 4666435 (1987-05-01), Bragineti
patent: 4681567 (1987-07-01), Masters et al.
patent: 4702738 (1987-10-01), Spencer
patent: 4702739 (1987-10-01), Milorad
patent: 4723943 (1988-02-01), Spencer
patent: 4737144 (1988-04-01), Choksi
patent: 4738603 (1988-04-01), Boyan
patent: 4747830 (1988-05-01), Gloyer et al.
patent: 4747837 (1988-05-01), Hauck
patent: 4788231 (1988-07-01), Haber et al.
patent: 4790827 (1988-12-01), Haber et al.
Gordon David P.
Green Randall L.
Reichle K. M.
Ryan Medical, Inc.
LandOfFree
Safety needled medical devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety needled medical devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety needled medical devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-105729