Locking safety cover for sharp instruments
First Claim
Patent Images
1. A safety device for a needle, comprising:
- a housing having a thin, flat profile, a first opening and a second opening;
a cam pivotably mounted within the housing and displaceable to open and close off the first opening;
a spring within the housing; and
a gripper wheel within the housing between the spring and the cam.
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Accused Products
Abstract
A safety catheter includes a pivoted cam and gripping wheel within a housing. As the catheter needle is withdrawn from the catheter the needle point is captured and locked within the housing, reducing the risk of needlestick injuries. When locked, the cam prevents the needle tip from being pushed out of the bottom of the housing, and the gripping wheel prevents the needle from being pulled out of the top of the housing. The sharp needle point is automatically covered and safely contained in the housing as it is withdrawn from the catheter.
200 Citations
12 Claims
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1. A safety device for a needle, comprising:
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a housing having a thin, flat profile, a first opening and a second opening; a cam pivotably mounted within the housing and displaceable to open and close off the first opening; a spring within the housing; and a gripper wheel within the housing between the spring and the cam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A safety device for a needle, comprising:
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a thin flat profile housing having a lower end wall with a standard catheter fitting, a pair of opposed parallel sidewalls joined to the lower end wall, and a pair of converging tapered sidewalls joined to the sidewalls and to an upper end wall; a cam pivotably mounted on a pin in the housing, the cam having a first leg and a second leg, with the first leg wider than the second leg; a first opening through the fitting and a second opening in the upper end wall and aligned with the first opening; a gripping wheel having a roughened outer surface in contact with the second leg of the cam; and a spring projecting from a spring receptacle in the housing, the spring in direct contact with the gripping wheel, and urging the gripping wheel against the second leg of the cam and towards one of the tapered sidewalls.
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Specification