摘要:
The present invention is directed to a shieldable needle device (12). The shieldable needle device (12) includes a housing (30), a needle cannula (20), a tip guard (50) and an elongated flexibly resilient drive mechanism (80). The housing (30) includes a longitudinal slot (90) that extends along a wall of the housing. The drive mechanism (80) is bent within the housing (30) and includes a first end which extends through the longitudinal slot (90) and a second end which is anchored to the tip guard (50). Upon movement of the first end along the longitudinal slot (90), the second end extends and moves the tip guard (50) from a retracted position to an extended position thereby protectively surrounding a tip of the needle cannula (20).
摘要:
A safety shield (10) assembly for an intravenous apparatus is provided including a needle (12), a needle hub (14), a forward shield (26), a guide element (24), and a locking member (56). The needle hub (14) is in fluid communication with a proximal end of the needle and includes a pair of flexible wings (30). The shield (26) includes a distal blunting end (18) having a distal aperture (20) and a proximal needle passageway (22). The shield (26) is moveable from a retracted position, in which the needle tip is exposed through the distal aperture (20), to an extended position, in which the needle tip is withdrawn from the aperture and is covered by the blunting end (18). The guide element (24) is arranged on the hub (14) for slidably accommodating the shield (25) for movement from the retracted position to the extended position. The locking member (56) locks the forward shield with respect to the guide element (24) in the extended position, upon slidable movement of the shield (26) into the extended position.
摘要:
A safety needle device (6) includes a housing including a passageway with a needle cannula (7) extending therefrom. A shielding member (15) is movable between a first position in which a puncture tip of the needle cannula is exposed therefrom and a second position in which the puncture tip of the needle cannula is encompassed therein. The shielding member is maintained in the first position against a biasing force (9) which biases the shielding member toward the second position. A fluid and/or temperature activation material (57), such as a hydrogel or a compressed sponge, is associated with the shielding member and is adapted to deform upon contact with a fluid medium and/or a certain temperature or temperature range. Fluid flowing through the needle cannula, such as blood flow during a blood collection procedure, causes the activation material to deform, such as through expansion, thereby releasing the shielding member from the first position and allowing the drive member to bias the shielding member toward the second position.
摘要:
A needle assembly, comprising: a housing including a passageway extending therethrough and a needle cannula having a puncture tip extending from a forward end thereof; a shielding member movable with respect to the housing between a first position in which the puncture tip of the needle cannula is exposed and a second position in which the puncture tip of the needle cannula is shielded by the shielding member, the shielding member maintained in the first position against a biasing force provided by a drive member biasing the shielding member toward the second position; and an activation material associated with the shielding member and adapted to deform upon the flow of fluid through the passageway of the housing, wherein fluid flowing through the passageway of the housing causes the activation material to deform, thereby releasing the shielding member from the first position and causing the drive member to bias the shielding member toward the second position.
摘要:
A safety needle device (6) includes a housing including a passageway with a needle cannula (7) extending therefrom. A shielding member (15) is movable between a first position in which a puncture tip of the needle cannula is exposed therefrom and a second position in which the puncture tip of the needle cannula is encompassed therein. The shielding member is maintained in the first position against a biasing force (9) which biases the shielding member toward the second position. A fluid and/or temperature activation material (57), such as a hydrogel or a compressed sponge, is associated with the shielding member and is adapted to deform upon contact with a fluid medium and/or a certain temperature or temperature range. Fluid flowing through the needle cannula, such as blood flow during a blood collection procedure, causes the activation material to deform, such as through expansion, thereby releasing the shielding member from the first position and allowing the drive member to bias the shielding member toward the second position.
摘要:
A connecting member (103,105) removably connects a plurality of pen needles (111) together, thereby providing a convenient way for a patient to carry multiple pen needles. The connecting member may be integrally formed with the outer cover of the pen needle or may be a separate member that removably receives the pen needle. An outer cover (110) of a pen needle is provided with gripping means to facilitate gripping and handling of the outer cover. A lid (227) connects to the outer cover to seal the outer cover. The lid also has gripping means to facilitate gripping and handling the lid. A cap (411) is provided that has a first opening for receiving a first end of the outer cover and a second opening for receiving a second end of the outer cover.
摘要:
A safety needle assembly has a needle hub and a needle cannula projecting from the hub. Wings project transversely from the hub to facilitate manipulation and positioning of the needle assembly. A shield is hingedly attached to the needle hub and can be rotated from a first position where the needle cannula is exposed to a second position where the needle cannula is shielded. At least one latch may be disposed on the shield for secure locked engagement with the hub, the wings and/or the tubing extending from the hub. A spring may also be provided for propelling the shield into the second position.