Method and apparatus for penetrating tissue
First Claim
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1. A body fluid sampling system for use on a tissue site, the system comprising:
- a controllable drive force generator;
a feedback loop coupled to the controllable drive force generatora plurality of penetrating members operatively coupled to said controllable drive force generator, said controllable drive force generator moving each of said members along a path out of a housing having a penetrating member exit into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site each of a penetrating member at least partially positioned adjacent to an analyte detecting member in a sample chamber, each sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member, and each analyte detecting member configured to determine analyte levels using a body fluid sample of less than about 1 microliter;
a flexible support member carrying said penetrating members parallel to each other on its top to define a linear array, said support member being movable to move each of said penetrating members to a launch position associated with said force generator; and
said controllable drive force generator and feedback loop configured to provide a controllable velocity trajectory into the tissue and out of said tissue.
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Abstract
A body fluid sampling system for use on a tissue site includes a single drive force generator. A plurality of penetrating members are operatively coupled to the force generator. The force generator moves each of the members along a path out of a housing with a penetrating member exit, into the tissue site, stops in the tissue site, and withdraws out of the tissue site. A flexible support member couples the penetrating members to define a linear array. The support member is movable and configured to move each of the penetrating members to a launch position associated with the force generator.
2955 Citations
20 Claims
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1. A body fluid sampling system for use on a tissue site, the system comprising:
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a controllable drive force generator; a feedback loop coupled to the controllable drive force generator a plurality of penetrating members operatively coupled to said controllable drive force generator, said controllable drive force generator moving each of said members along a path out of a housing having a penetrating member exit into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site each of a penetrating member at least partially positioned adjacent to an analyte detecting member in a sample chamber, each sample chamber configured to receive body fluid from a wound in tissue created by a penetrating member, and each analyte detecting member configured to determine analyte levels using a body fluid sample of less than about 1 microliter; a flexible support member carrying said penetrating members parallel to each other on its top to define a linear array, said support member being movable to move each of said penetrating members to a launch position associated with said force generator; and said controllable drive force generator and feedback loop configured to provide a controllable velocity trajectory into the tissue and out of said tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification