Protective cover for hypodermic needle
First Claim
1. A protective hypodermic needle cover assembly comprising:
- hypodermic needle means comprising a mounting base and a needle connecting said base and terminating in a sharpened point axially spaced from said base, said base comprising a transversely projecting guide means defining a pair of apertures;
protective shield means mounted to said base for protectively shielding said needle point in an extended protective position, said shield means comprising a cap-like member defining a needle opening, said needle extending through said opening to expose said needle point in a retracted position; and
a pair of guide rods extending from said protective shield means and received in said apertures so that the rods move through said apertures when the protective shield means is displaced from the retracted to protective positions, said rods connecting said protective shield means to said hypodermic means in the protective position.
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Accused Products
Abstract
A protective cover for a hypodermic needle employs a pair of guide rods for guiding a protective cap from a retracted position to an extended protective position for shielding the hypodermic needle. A guide member projects transversely from the needle base and forms a pair of apertures which receive and interact with the guide rods. The guide rods are fixed to a protective cap portion of the cover. A guide rod mechanism is also employed in connection with a retractable, foldable sheath embodiment. The protective cover assembly may also take the form of telescopic shield sections which lock in the extended protective position by means of a cooperative projection/groove locking engagement.
167 Citations
12 Claims
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1. A protective hypodermic needle cover assembly comprising:
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hypodermic needle means comprising a mounting base and a needle connecting said base and terminating in a sharpened point axially spaced from said base, said base comprising a transversely projecting guide means defining a pair of apertures; protective shield means mounted to said base for protectively shielding said needle point in an extended protective position, said shield means comprising a cap-like member defining a needle opening, said needle extending through said opening to expose said needle point in a retracted position; and a pair of guide rods extending from said protective shield means and received in said apertures so that the rods move through said apertures when the protective shield means is displaced from the retracted to protective positions, said rods connecting said protective shield means to said hypodermic means in the protective position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A protective hypodermic needle cover assembly comprising:
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needle means comprising a mounting base and a needle connecting said base and terminating in a sharpened point axially spaced from the base; protective sheath means mounted to said needle means for protecting said needle point in a protective mode, said sheath means comprising a foldable sheath and a protective covering at the distal end thereof, said cover defining an opening, said foldable sheath connecting to said needle base at a proximal end, said sheath having a corrugated form which is axially expandable from a collapsed folded position wherein said needle projects through said opening to permit exposure of the needle point to an extended protective position wherein said sheath surrounds said needle point; guide means projecting diametrally from said mounting base, said guide means defining a pair of diametrally-spaced apertures; and guide rod means mounted to said covering and slidably receivable in said apertures for guiding said sheath means to the protective mode. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification