Lancets and Methods of Use
First Claim
Patent Images
1. A lancet, comprising:
- an elongated body having therein a needle terminating in a sharp tip;
a sleeve having a front end and a rear end, the sleeve being disposed about at least a portion of the elongated body and movable relative to the elongated body between a forward position in which the sharp tip is protectively surrounded by the sleeve and a rearward position in which the sharp tip projects from the front end of the sleeve; and
a first locking member extending from the elongated body at a location intermediate the forward and rearward positions, the first locking member having an extended configuration in which the first locking member engages the sleeve to prevent the sleeve from moving rearward, and a retracted configuration in which the first locking member does not engage the sleeve to prevent the sleeve from moving rearward;
wherein at least a portion of an interior of the sleeve is configured to contain the first locking member in the retracted configuration when the sleeve moves over the first locking member.
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Abstract
Lancets and methods of use are provided. Embodiments include lancets including a sleeve mounted to an elongated body having a needle terminating in a sharp tip.
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Citations
20 Claims
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1. A lancet, comprising:
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an elongated body having therein a needle terminating in a sharp tip;
a sleeve having a front end and a rear end, the sleeve being disposed about at least a portion of the elongated body and movable relative to the elongated body between a forward position in which the sharp tip is protectively surrounded by the sleeve and a rearward position in which the sharp tip projects from the front end of the sleeve; and
a first locking member extending from the elongated body at a location intermediate the forward and rearward positions, the first locking member having an extended configuration in which the first locking member engages the sleeve to prevent the sleeve from moving rearward, and a retracted configuration in which the first locking member does not engage the sleeve to prevent the sleeve from moving rearward;
wherein at least a portion of an interior of the sleeve is configured to contain the first locking member in the retracted configuration when the sleeve moves over the first locking member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A lancet, comprising:
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an elongated body having therein a needle terminating in a sharp tip;
a sleeve having a front end and a rear end and disposed about at least a portion of the elongated body, the sleeve located at an initial position relative to the elongated body so that the sharp tip is disposed within the sleeve;
a first locking member extending from the elongated body at a location outside of the sleeve and having an extended configuration in which the first locking member engages the sleeve to prevent rearward movement of the sleeve and a retracted configuration in which the first locking member does not engage the sleeve to prevent rearward movement of the sleeve; and
a second locking member axially spaced from the first locking member and extending from the elongated body at a location within the sleeve. - View Dependent Claims (17, 18, 19)
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20. A method of using a lancet having an elongated body with a needle therein terminating in a sharp tip, a sleeve disposed about at least a portion of the elongated body and movable relative to the elongated body, and a locking member having an extended configuration and a retracted configuration, the method comprising:
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positioning the sleeve in a forward position in which the sharp tip is protectively surrounded by at least a portion of the sleeve;
placing the locking member in the extended configuration to prevent rearward movement of the sleeve;
loading the lancet into a lancing device;
moving the locking member into the retracted configuration before firing the lancing device to permit the sleeve to move rearward over the locking member; and
containing the locking member in the retracted configuration while the sleeve moves over the locking member.
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Specification