Needle device and method thereof
First Claim
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1. A needle device comprising:
- a housing having a base for placement against a surface of a needle-penetrating site, the base including a first opening;
a needle mounted for a movement between a retracted position in the housing and an extended position, a portion of the needle extending through the first opening in the extended position;
an actuator movably mounted to the housing and movable between a primary unactuated position in which the needle is in the retracted position, an actuated position in which the needle is in the extended position, and a secondary unactuated position in which the needle is in the retracted position; and
a retraction mechanism, in direct contact with the site surface when the base is placed against the site surface, that automatically moves the actuator to the secondary unactuated position responsive to releasing the base from the site surface, wherein the actuator is not movable between the secondary unactuated position and the actuated position when the base is placed on the site surface.
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Abstract
A needle device has a needle retraction mechanism that retracts the needle upon removing the device from the skin surface (either intentionally or unintentionally). Once the needle is retracted, the device is rendered inoperative. The needle can be further made inoperative by bending it when one attempts to reuse the device. In another embodiment, a needle opening formed in the base of the housing can be covered to render the needle inoperative when one attempts to reuse the device. In another embodiment, the needle device instead has a needle shield that automatically covers the needle after use.
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Citations
19 Claims
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1. A needle device comprising:
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a housing having a base for placement against a surface of a needle-penetrating site, the base including a first opening; a needle mounted for a movement between a retracted position in the housing and an extended position, a portion of the needle extending through the first opening in the extended position; an actuator movably mounted to the housing and movable between a primary unactuated position in which the needle is in the retracted position, an actuated position in which the needle is in the extended position, and a secondary unactuated position in which the needle is in the retracted position; and a retraction mechanism, in direct contact with the site surface when the base is placed against the site surface, that automatically moves the actuator to the secondary unactuated position responsive to releasing the base from the site surface, wherein the actuator is not movable between the secondary unactuated position and the actuated position when the base is placed on the site surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A needle device comprising:
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a housing having a base adapted to be placed next to a surface of a needle-penetrating site, the base including at least a first opening and a second opening; a needle mounted for a movement between a retracted position in the housing and an extended position, where a portion of the needle extends through the first opening when in the extended position; an actuator movably mounted to the housing and movable between an unactuated position at which the needle is in the retracted position and an actuated position at which the needle is in the extended position, the actuator being biased toward the unactuated position; a retraction mechanism responsive to contact with the site surface through the second opening, wherein when the base is placed next to a site surface and the needle is moved to the extended position the retraction mechanism locks the needle in the extended position until the base is released from next to the surface whereby the retraction mechanism automatically moves the needle from the extended position to the retracted position. - View Dependent Claims (17, 18, 19)
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Specification