Contact activated lancet device
First Claim
1. A lancet device comprising:
- a housing;
a lancet structure comprising a puncturing element, the lancet structure disposed within the housing and adapted for movement between a 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;
a drive spring biasing the lancet structure toward the puncturing position;
a retaining hub retaining the lancet structure in the pre-actuated position against the bias of the drive spring, the retaining hub comprising a lever pivotal about a fulcrum, the lever comprising a class 1 lever, the lever providing interference engagement with the lancet structure, the lever comprising a first lever element and a second lever element spaced from the first lever element, the first lever element and the second lever element disposed on opposing sides of the lancet structure; and
an actuator adapted to pivot the lever about the fulcrum, thereby releasing the lever from interference engagement with the lancet structure, permitting the drive spring to drive the lancet structure toward the puncturing position.
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Accused Products
Abstract
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.
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Citations
60 Claims
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1. A lancet device comprising:
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a housing; a lancet structure comprising a puncturing element, the lancet structure disposed within the housing and adapted for movement between a 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; a drive spring biasing the lancet structure toward the puncturing position; a retaining hub retaining the lancet structure in the pre-actuated position against the bias of the drive spring, the retaining hub comprising a lever pivotal about a fulcrum, the lever comprising a class 1 lever, the lever providing interference engagement with the lancet structure, the lever comprising a first lever element and a second lever element spaced from the first lever element, the first lever element and the second lever element disposed on opposing sides of the lancet structure; and an actuator adapted to pivot the lever about the fulcrum, thereby releasing the lever from interference engagement with the lancet structure, permitting the drive spring to drive the lancet structure toward the puncturing position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A lancet device comprising:
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a housing having a rearward end and a forward end having an opening extending therethrough; a shield movable through the opening of the forward end of the housing, the shield comprising a retaining hub adjacent a rearward end thereof, the retaining hub comprising a pivotal lever pivotal about a fulcrum, the lever comprising a class 1 lever; a lancet structure comprising a puncturing element, the lancet structure disposed within the housing and adapted for movement between a pre-actuation position wherein the puncturing element is disposed within the housing and a puncturing position, wherein the puncturing element extends through a forward end of the shield, and the lancet structure is in interference engagement with the lever of the retaining hub at the rearward end of the shield thereby maintaining the lancet structure in the retracted position; and a drive spring disposed between the housing and the lancet structure for biasing the lancet structure against the lever of the retaining hub, wherein movement of the shield toward the rearward end of the housing causes an internal contact within the housing to engage the lever of the retaining hub, thereby causing pivotal movement of the lever to release the lancet structure from interference engagement with the lever, permitting the drive spring to drive the lancet structure through the shield toward the puncturing position. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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- 38. 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 wherein the puncturing element extends through a forward end of the housing, comprising an annular retaining hub comprising a lever in interference engagement with the lancet for retaining the lancet within the housing against the bias of the drive spring, the lever comprising a class 1 lever, the lever being pivotal about a fulcrum on one side of a plane dissecting the annular retaining hub at a cross-section to an axis defined by the lancet, the lever comprising a first lever element and a second lever element spaced from the first lever element, the first lever element and the second lever element disposed on opposite sides of the lancet, wherein pivoting of the lever about the fulcrum upon engagement of the lever with a portion of the housing releases the lancet from interference engagement with the lever to permit the drive spring to drive the lancet toward the puncturing position.
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43. A lancet device comprising:
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a housing; a lancet comprising a puncturing element axially movable within the housing and retained within the housing, the lancet movable toward a puncturing position wherein the puncturing element extends through a forward end of the housing; a drive spring biasing the lancet toward the puncturing position; a shield extending through the forward end of the housing and moveable with respect to the housing; and an annular retaining hub comprising at least one class 1-type lever being pivotal about a fulcrum, the lever having a first position with respect to the fulcrum wherein the hub restricts movement of the lancet with respect to the shield, and a second position with respect to the fulcrum wherein the hub does not restrict movement of the lancet with respect to the shield, the second position enabling the lancet to achieve a puncture position through the forward end of the shield, wherein movement of the shield with respect to the housing causes movement of the lever from the first position to the second position, thereby releasing the lancet from interference engagement with the lever, and wherein the drive spring has one end engaged to either the shield or the housing and the other end engaged to the lancet, wherein sufficient pivotal movement of the at least one class 1-type lever permits the drive spring to drive the lancet toward the puncturing position.
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44. A lancet device comprising:
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a housing; a lancet structure comprising a puncturing element, the lancet structure disposed within the housing and adapted for movement between a pre-actuated position and a puncturing position wherein the puncturing element extends through an end of the housing; a drive spring for biasing the lancet structure toward the puncturing position; a retaining hub retaining the lancet structure in the pre-actuated position against the bias of the drive spring, the retaining hub comprising a lever pivotal about a fulcrum, the lever comprising a class 1 lever, the lever providing interference engagement with the lancet structure, the lever comprising a first lever element and a second lever element spaced from the first lever element, the first lever element and the second lever element disposed on opposing sides of the lancet structure; and an actuator adapted to pivot the lever upon engagement of the lever with a portion of the housing thereby releasing the lever from interference engagement with the lancet structure, permitting the drive spring to drive the lancet structure toward the puncturing position. - View Dependent Claims (45, 46, 47, 48)
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49. A lancet device comprising:
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a housing having a rearward end and a forward end having an opening extending therethrough; a shield movable through the opening of the forward end of the housing, the shield comprising a retaining hub adjacent a rearward end thereof, the retaining hub comprising a pivotal lever pivotal about a fulcrum, the lever comprising a class 1 lever; a lancet structure comprising a puncturing element, the lancet structure disposed within the housing and adapted for movement between a pre-actuation position wherein the puncturing element is disposed within the housing and a puncturing position wherein the puncturing element extends through a forward end of the shield, and the lancet structure is in interference engagement with the lever of the retaining hub thereby maintaining the lancet structure in the retracted position; and a biasing member in cooperation with the lancet structure for biasing the lancet structure against the lever of the retaining hub, wherein movement of the shield causes pivotal movement of the lever upon engagement of the lever with a portion of the housing to release the lancet structure from interference engagement with the lever, permitting the biasing member to drive the lancet structure through the shield toward the puncturing position. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A lancet device comprising:
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a housing; a lancet comprising a puncturing element axially movable within the housing and retained within the housing, the lancet movable toward a puncturing position wherein the puncturing element extends through a forward end of the housing; a shield extending through the forward end of the housing and moveable with respect to the housing; and an annular retaining hub comprising a lever pivotal about a pivot point upon engagement of the lever with a portion of the housing, the lever comprising a class 1 lever, the lever having a first position with respect to the pivot point wherein the hub restricts movement of the lancet with respect to the shield, and a second position with respect to the pivot point wherein the hub does not restrict movement of the lancet with respect to the shield, the second position enabling the lancet to achieve a puncture position through the forward end of the shield, the lever comprising a first lever element and a second lever element spaced from the first lever element, the first lever element and the second lever element disposed on opposing sides of the lancet, wherein movement of the shield with respect to the housing causes movement of the lever from the first position to the second position, thereby releasing the lancet from interference engagement with the lever. - View Dependent Claims (60)
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Specification