Medical device
First Claim
1. A safety shield assembly for an intravenous apparatus, comprising:
- a needle having a distal needle tip;
a needle hub in fluid communication with a proximal end of said needle and including a pair of flexible wings;
a forward shield including a distal blunting end having a distal aperture and a proximal needle passageway, wherein said shield is moveable from a retracted position in which said needle tip is exposed through the distal aperture to an extended position in which said needle tip is withdrawn from said aperture and is covered by said blunting end;
a guide element arranged on said hub for slidably accommodating said forward shield for movement from said retracted position to said extended position; and
locking means for locking said forward shield with respect to said guide element in said extended position, upon said slidable movement of said forward shield into said extended position.
1 Assignment
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Accused Products
Abstract
A safety shield assembly for an intravenous apparatus is provided including a needle, a needle hub, a forward shield, a guide element, and a locking member. The needle hub is in fluid communication with a proximal end of the needle and includes a pair of flexible wings. The shield includes a distal blunting end having a distal aperture and a proximal needle passageway. The shield is moveable from a retracted position, in which the needle tip is exposed through the distal aperture, to an extended position, in which the needle tip is withdrawn from the aperture and is covered by the blunting end. The guide element is arranged on the hub for slidably accommodating the shield for movement from the retracted position to the extended position. The locking member locks the forward shield with respect to the guide element in the extended position, upon slidable movement of the shield into the extended position.
102 Citations
20 Claims
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1. A safety shield assembly for an intravenous apparatus, comprising:
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a needle having a distal needle tip;
a needle hub in fluid communication with a proximal end of said needle and including a pair of flexible wings;
a forward shield including a distal blunting end having a distal aperture and a proximal needle passageway, wherein said shield is moveable from a retracted position in which said needle tip is exposed through the distal aperture to an extended position in which said needle tip is withdrawn from said aperture and is covered by said blunting end;
a guide element arranged on said hub for slidably accommodating said forward shield for movement from said retracted position to said extended position; and
locking means for locking said forward shield with respect to said guide element in said extended position, upon said slidable movement of said forward shield into said extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A safety shield assembly for an intravenous apparatus, comprising:
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a needle;
a needle hub in fluid communication with a proximal end of said needle and including a pair of flexible wings;
a forward shield including a distal blunting end, a proximal finger contact surface, an arched barrier arm interposed between said blunting end and said finger contact surface, and a wedge-shaped locking projection having a wider proximal end than a distal end, wherein said shield is moveable from a retracted position in which said needle tip is exposed through said distal aperture to an extended position in which said needle tip is withdrawn from said aperture and is covered by said blunting end; and
a guide element arranged on said hub for slidably accommodating said shield for movement from said retracted position to said extended position, said guide element including a guide groove having a pair of inwardly directed projections, whereby said inwardly directed projections engage said locking projection to prevent retrograde movement when said shield is in said extended position. - View Dependent Claims (20)
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Specification