초록

A diagnostic device for testing a piezoelectric sensor includes an AC source configured to apply an AC signal to the piezoelectric sensor at two or more different frequencies. The response of the piezoelectric sensor can be measured and used for diagnostics.

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A diagnostic device for testing a piezoelectric sensor includes an AC source configured to apply an AC signal to the piezoelectric sensor at two or more different frequencies. The response of the piezoelectric sensor can be measured and used for diagnostics. generally annular rotatable member. 6.

A diagnostic device for testing a piezoelectric sensor includes an AC source configured to apply an AC signal to the piezoelectric sensor at two or more different frequencies. The response of the piezoelectric sensor can be measured and used for diagnostics. generally annular rotatable member. 6. A tip for a lancet device, comprising: a front assembly comprising a side wall portion, a skin-engaging portion at least partially defining a plane beyond which a lancet needle may extend, and a lancet stop element; a slot disposed in one of the sidewall portion and the lancet stop element; at least one following element extending into the slot; an actuator comprising a generally annular rotatable member that engages the at least one following element; and an outer generally annular rotatable member, wherein the lancet stop element is moveable towards and away from the plane in response to movement of the at least one following element, and wherein the generally annular rotatable member comprises a slot. 7. The tip of claim 6, wherein the slot on the generally annular rotatable member comprises a camming slot. 8. A tip for a lancet device, comprising: a front assembly comprising a side wall portion, a skin-engaging portion at least partially defining a plane beyond which a lancet needle may extend, and a lancet stop element; a slot disposed in one of the sidewall portion and the lancet stop element; at least one following element extending into the slot; and an actuator comprising a generally annular rotatable member that engages the at least one following element; wherein the lancet stop element is moveable towards and away from the plane in response to movement of the at least one following element, and wherein the at least one following element is fixed to the lancet stop element. 9. A tip for a lancet device, comprising: a front assembly comprising a side wall portion, a skin-engaging portion at least partially defining a plane beyond which a lancet needle may extend, and a lancet stop element; a slot disposed in one of the sidewall portion and the lancet stop element; at least one following element extending into the slot; and an actuator comprising a generally annular rotatable member that engages the at least one following element; wherein the lancet stop element is moveable towards and away from the plane in response to movement of the at least one following element, and further comprising at least one tooth disposed on one of the lancet stop element and the front assembly. 10. The tip of claim 9, wherein the lancet stop element comprises a first section which includes at least one ratchet tooth and a second section which includes a camming lug, the first section being partially separated from the second section by at least one separating slot. 11. The tip of claim 10, wherein the first section and the second section are partially separated by at least two separating slots such that the separating slots define at least two connecting walls. 12. The tip of claim 11, wherein the second section further comprises a circumferential separating slot for separating a portion of the deflecting wall from the cylindrical wall of the lancet stop element such that the deflecting wall is connected to the cylindrical wall by a connecting wall. 13. The tip of claim 12, wherein the connecting wall allows the deflecting wall to deflect inward towards a center axis of the lancet stop element. 14. The tip of claim 11, wherein the second section further comprises a deflecting wall for connecting the camming lug to a cylindrical wall of the lancet stop element. 15. The tip of claim 9, wherein the front assembly comprises an internal spline having a plurality of teeth for engaging the at least one tooth disposed on the lancet stop element. 16. The tip of claim 9, further comprising at least two ratchet teeth being disposed on the lancet stop element approximately 180 degrees apart from one another. 17. A tip for a lancet device, comprising: a front assembly comprising a side wall portion, a skin-engaging portion at least partially defining a plane beyond which a lancet needle may extend, and a lancet stop element; a slot disposed in one of the sidewall portion and t