Methods and apparatus for lancet actuation
First Claim
Patent Images
1. A lancet driver configured to exert a driving force on a lancet during a:
- lancing cycle and used on a tissue site, said driver comprising;
a drive force generator for advancing said lancet along a path into the tissue site;
a processor; and
a position sensor coupled to the processor, the position sensor configured to detect lancet position during the lancing cycle and relay to the processor at least one of, skin penetrating performance or a skin penetrating setting.
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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 along a path into the tissue site, and a sensor configured to detect lancet position along said path during the lancing cycle.
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Citations
102 Claims
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1. A lancet driver configured to exert a driving force on a lancet during a:
- lancing cycle and used on a tissue site, said driver comprising;
a drive force generator for advancing said lancet along a path into the tissue site;
a processor; and
a position sensor coupled to the processor, the position sensor configured to detect lancet position during the lancing cycle and relay to the processor at least one of, skin penetrating performance or a skin penetrating setting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
- lancing cycle and used on a tissue site, said driver comprising;
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42. A lancet driver configured to exert a driving force on a lancet during a lancing cycle and used on a tissue site, said device comprising:
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a voice-coil, drive force generator; 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;
a position sensor coupled to the processor, the position sensor configured to detect lancet position during the lancing cycle and relay to the processor at least one of, skin penetrating performance or a skin penetrating setting; and
wherein said processor actuates said drive force generator to drive the lancet at velocities in time that follow a selectable lancing velocity profile. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81)
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82. A body fluid sampling device configured to exert a driving force on a lancet during a lancing cycle and used on a tissue site, said device comprising:
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a drive force generator suitable for actuating the lancet along said path towards the tissue site, into the tissue site, and then back out of the tissue site, said lancet penetrating to a depth in the tissue site sufficient to draw body fluid from the tissue site for sampling;
a processor; and
a position sensor coupled to the processor, the position sensor configured to detect lancet position during the lancing cycle and relay to the processor at least one of, skin penetrating performance or a skin penetrating setting a closed feedback control loop coupled to the processor and the position sensor for controlling said drive force generator based on position and velocity of the lancet. - View Dependent Claims (83, 84)
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85. A body fluid sampling device for use at a tissue site on a patient, said device comprising:
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a drive force generator; 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;
a position sensor configured to detect lancet position during the lancing cycle;
wherein said drive force generator actuates said lancet along a one directional, linear path towards the tissue site, into the tissue site, and then back out of the tissue site, said lancet penetrating to a depth in the tissue site and pauses for a controlled dwell time while in the tissue site, said dwell time sufficient to draw body fluid toward a wound channel created by said lancet. - View Dependent Claims (86, 87)
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88. A body fluid sampling device for use at a tissue site on a patient, said device comprising:
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a voice-coil, drive force generator; 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;
a position sensor configured to detect lancet position during the lancing cycle;
a damper disposed to minimize oscillation of the lancet in the tissue site when the lancet reaches an end point of its penetration stroke into said tissue site. - View Dependent Claims (89)
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90. A method for sampling body fluid from a tissue site, said method comprising:
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driving a lancet along a path into the tissue site;
using a sensor to detect lancet position along said path into the tissue site. - View Dependent Claims (91, 92, 93, 94, 95, 96, 97, 98, 99, 102)
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100. A method for sampling body fluid from a tissue site, said method comprising:
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using a position sensor coupled to a processor, the position sensor configured to detect lancet position during the lancing cycle and relay to the processor at least one of, skin penetrating performance or a skin penetrating setting; and
driving a lancet along a path into the tissue site using closed loop feedback to control lancet velocity to follow a selectable lancing velocity profile. - View Dependent Claims (101)
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Specification