Lancet device
First Claim
1. A lancet device, comprising:
- a housing having a rearward end, a forward end, and a side portion;
a shield movably associated with the housing, the shield comprising a rearward end, a forward end, a central passageway extending between the rearward end and the forward end, and at least one guide channel defined within an interior of the shield and extending between the rearward end and the forward end;
a lancet disposed in the housing and comprising a tip and at least one guide tab configured to slidably move within the at least one guide channel of the shield, the lancet adapted for axial movement between a first position where the tip is disposed within the shield and a second position where the tip extends through a forward opening in the shield;
a drive member disposed at the rearward end of the housing for biasing the lancet to the second position; and
an actuator associated with the housing and engaged with the lancet to maintain the lancet in the first position,wherein movement of the shield into the housing causes disengagement of the actuator from the lancet and release of the drive member thereby enabling the drive member to bias the lancet to the second position.
1 Assignment
0 Petitions
Accused Products
Abstract
The lancet device includes a housing and a lancet having a puncturing element. The lancet is disposed within the housing and is adapted for axial movement between an initial 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 opening in the housing. The lancet device includes a drive spring disposed within the housing for biasing the lancet toward the puncturing position, and a retraction or return spring for returning the lancet to a position within the housing where the puncturing element is disposed within the housing. The retraction spring thereafter maintains engagement with the lancet to assist in preventing the puncturing element from again projecting outward from the forward opening in the housing.
34 Citations
13 Claims
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1. A lancet device, comprising:
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a housing having a rearward end, a forward end, and a side portion; a shield movably associated with the housing, the shield comprising a rearward end, a forward end, a central passageway extending between the rearward end and the forward end, and at least one guide channel defined within an interior of the shield and extending between the rearward end and the forward end; a lancet disposed in the housing and comprising a tip and at least one guide tab configured to slidably move within the at least one guide channel of the shield, the lancet adapted for axial movement between a first position where the tip is disposed within the shield and a second position where the tip extends through a forward opening in the shield; a drive member disposed at the rearward end of the housing for biasing the lancet to the second position; and an actuator associated with the housing and engaged with the lancet to maintain the lancet in the first position, wherein movement of the shield into the housing causes disengagement of the actuator from the lancet and release of the drive member thereby enabling the drive member to bias the lancet to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification