Needle guard assembly
First Claim
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1. A needle guard assembly comprising:
- a mounting base having a bore extending therethrough, said bore having an upper end for receiving a needle base and a lower end for removable connection to a syringe hub, said upper and lower ends being shaped and oriented to have a continuous passage therethrough designed permit flow of a fluid from a needle through the upper end and out through the lower end into a syringe, and from a syringe through the lower end into a needle through the upper end;
a jacket assembly pivotally mounted on said mounting base comprising;
i.) a shield member having an open end positioned opposite a closed end, said open end terminating in a U-shaped clevis portion adapted to enable pivotal movement of said shield, and having a substantially U-shaped channel extending longitudinally between said open end and said closed end; and
ii.) a lever member positioned on said base parallel to said shield member having at one end a U-shaped clevis portion adapted to enable pivotal movement of said lever positioned opposite a free end and a laterally extending tab proximal to said free end thereof, wherein said tab is shaped and oriented to provide leverage for initiating pivotal movement of said lever from a retracted position and to align with and engage said closed end of said shield when said needle guard assembly is in a closed position around a needle;
activating means adapted for movement of the jacket assembly from a retracted position to a closed position; and
biasing means adapted to drive movement of the activating means.
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Abstract
In accordance with the present invention, there is provided a needle guard assembly for a hypodermic syringe or other fluid transfer device that offers optimal protection for preventing accidental puncture by a needle after it has been used, maintaining the sterility of a needle prior to use, indicating prior use, preventing reuse, and facilitating safe disposal of a needle after use/injection.
75 Citations
17 Claims
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1. A needle guard assembly comprising:
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a mounting base having a bore extending therethrough, said bore having an upper end for receiving a needle base and a lower end for removable connection to a syringe hub, said upper and lower ends being shaped and oriented to have a continuous passage therethrough designed permit flow of a fluid from a needle through the upper end and out through the lower end into a syringe, and from a syringe through the lower end into a needle through the upper end; a jacket assembly pivotally mounted on said mounting base comprising; i.) a shield member having an open end positioned opposite a closed end, said open end terminating in a U-shaped clevis portion adapted to enable pivotal movement of said shield, and having a substantially U-shaped channel extending longitudinally between said open end and said closed end; and ii.) a lever member positioned on said base parallel to said shield member having at one end a U-shaped clevis portion adapted to enable pivotal movement of said lever positioned opposite a free end and a laterally extending tab proximal to said free end thereof, wherein said tab is shaped and oriented to provide leverage for initiating pivotal movement of said lever from a retracted position and to align with and engage said closed end of said shield when said needle guard assembly is in a closed position around a needle; activating means adapted for movement of the jacket assembly from a retracted position to a closed position; and biasing means adapted to drive movement of the activating means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification