Methods and apparatus for lancet actuation
First Claim
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1. A device for detection of an analyte in liquid from a person, comprising:
- a support with first and second sides with recesses which define puncturing points on one side of the support;
an analyte sensor coupled to the support;
separating lines that separate individual puncturing/measuring disposable bodies either singly or in groups from the support;
an electronic drive force generator configured to be coupled to and exert a controllable driving force on a lancet during a lancing cycle;
a feedback loop; and
a processor coupled to the feedback loop and drive force generator capable of changing a direction and magnitude of force exerted on the lancet during the lancing cycle and control a depth of penetration of a lancet, the processor actuating the drive force generator to drive the lancet at velocities in time that follow a selectable lancing velocity profile to control depth of penetration, lancet penetration and withdrawal velocity to minimize a lancet from extending below a skin surface to nerves, the processor providing for programmable control of velocity verses a position profile of a lancet.
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Abstract
A lancet driver is provided wherein the driver exerts a driving force on a lancet during a lancing cycle and is used on a tissue site. The driver comprises of a drive force generator for advancing the lancet and a processor coupled to the drive force generator capable of changing the direction and magnitude of force exerted on the lancet during the lancing cycle. The driver further includes a human interface on the housing providing at least one output for communicating with the patient.
2186 Citations
19 Claims
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1. A device for detection of an analyte in liquid from a person, comprising:
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a support with first and second sides with recesses which define puncturing points on one side of the support; an analyte sensor coupled to the support; separating lines that separate individual puncturing/measuring disposable bodies either singly or in groups from the support; an electronic drive force generator configured to be coupled to and exert a controllable driving force on a lancet during a lancing cycle; a feedback loop; and a processor coupled to the feedback loop and drive force generator capable of changing a direction and magnitude of force exerted on the lancet during the lancing cycle and control a depth of penetration of a lancet, the processor actuating the drive force generator to drive the lancet at velocities in time that follow a selectable lancing velocity profile to control depth of penetration, lancet penetration and withdrawal velocity to minimize a lancet from extending below a skin surface to nerves, the processor providing for programmable control of velocity verses a position profile of a lancet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification