Back to results
US 5,843,047 AGranted
Syringe with integral safety cover
AssigneeOkanogan House, Inc.
InventorsRonald Robert Pyrozyk, Steve Ronald Sharp
Life of this patent
Estimating the term…
Abstract
An apparatus and method of covering a needle on a syringe having a barrel and a hypodermic needle connected to the barrel includes the step of extending a telescoping cover engaged with the barrel until the telescoping cover covers the hypodermic needle.
Claims37
An apparatus comprising:
- a) a barrel having a first end portion for receiving a plunger and a second end portion operable to hold a hypodermic needle;
- b) a telescoping cover engaged with the barrel, the cover being operable to extend axially relative to said barrel to cover the hypodermic needle, and operable to be selectively rotatable relative to said barrel, and
- c) a first releasable lock cooperating with said telescoping cover and said barrel for releasably locking said telescoping cover to said barrel when said telescoping cover is in a retracted position, the first releasable lock including a receptacle and a tab;
- the tab being operable to be releasably jammed in said receptacle to lock said cover relative to said barrel to prevent said axial extension of said cover, and being operable to be removable from the receptacle to unlock said telescoping cover relative to said barrel following relative rotation between said cover and said barrel to permit said axial extension of said telescoping cover relative to said barrel.
1 more element
A method of covering a needle on a syringe having a barrel and a hypodermic needle connected to the barrel, the method comprising the steps of:
- a) rotating a telescoping cover releasably jammed in engagement with said barrel to release said telescoping cover from the barrel, and
- b) extending the telescoping cover relative to the barrel until the telescoping cover covers the hypodermic needle to protect the needle.
A syringe comprising:
- a) a barrel having first and second opposite end portions;
- b) a plunger operable to be received in said first end portion;
- c) a hypodermic needle connected to said second end portion;
- d) a telescoping cover engaged with said barrel, the cover being operable to extend axially relative to said barrel to extend beyond said second end portion to cover said hypodermic needle, and operable to be selectively rotatable relative to said barrel, and
- e) a first releasable lock cooperating with said telescoping cover and said barrel for releasably locking said telescoping cover to said barrel when said telescoping cover is in a retracted position, the first releasable lock including a receptacle and a tab;
- the tab being operable to be releasably jammed in said receptacle to lock said cover relative to said barrel to prevent said axial extension of said cover, and being selectively removable from the receptacle to unlock said telescoping cover relative to said barrel following relative rotation between said cover and said barrel to permit said axial extension of said telescoping cover relative to said barrel.
3 more elements
Dependencies are inferred from the claim text.