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AssigneeBecton, Dickinson and Company
InventorsJacek Karbowniczek, Wlodzinierz Rutynowski, Bradley Wilkinson
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A lancet device including a housing and a lancet structure having a puncturing element. The lancet structure disposed within the housing and adapted for movement between a retaining or pre-actuated position wherein the puncturing element is retained within the housing, and a puncturing position wherein the puncturing element extends through a forward end of the housing. The lancet device includes a drive spring disposed within the housing for biasing the lancet structure toward the puncturing position, and a retaining hub retaining the lancet structure in the retracted position against the bias of the drive spring. The retaining hub includes a pivotal lever in interference engagement with the lancet structure. An actuator within the housing pivots the lever, thereby moving the lancet structure toward the rearward end of the housing to at least partially compress the drive spring, and releasing the lever from interference engagement with the lancet structure.
A lancet device comprising:
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A lancet device comprising a housing and a lancet including a puncturing element movable within the housing and retained within the housing against a bias of a drive spring biasing the lancet toward a puncturing position in which the puncturing element extends through a forward end of the housing, the improvement comprising a retaining hub comprising at least one lever in interference engagement with the lancet for retaining the lancet within the housing against the bias of the drive spring, the lever being pivotal about a fulcrum upon contact with an internal contact within the housing to release the lancet from interference engagement with the lever, thereby permitting the drive spring to drive the lancet toward a puncturing position.
A method of retaining a lancet structure in a pre-activated position within a housing, comprising providing the lancet structure with a puncturing element disposed within the housing, and retaining the puncture element within the housing against a bias of a drive spring biasing the lancet structure toward a puncturing position in which the puncturing element extends through a forward end of the housing, the improvement comprising retaining the lancet within the housing against the bias of the drive spring with a retaining hub comprising a rim including a lever in interference engagement with the lancet structure, the lever being pivotal about a fulcrum.
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Dependencies are inferred from the claim text.