Method and apparatus for penetrating tissue
First Claim
1. A body fluid sampling system for use on a tissue site, the system comprising:
- an electrically powered drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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Accused Products
Abstract
These and other objects of the present invention are achieved in a body fluid sampling system for use on a tissue site that includes an electrically powered drive force generator. A penetrating member is operatively coupled to the force generator. The force generator moves the member along a path out of a housing having a penetrating member exit, into the tissue site, stops in the tissue site, and withdraws out of the tissue site. An analyte detecting member is positioned to receive fluid from a wound created by the penetrating member. The detection member is configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
297 Citations
101 Claims
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1. A body fluid sampling system for use on a tissue site, the system comprising:
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an electrically powered drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid. - 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, 42, 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, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. A body fluid sampling system for use on a tissue site, the system comprising:
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an electrically powered drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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93. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
said drive force generator configured to be controlled to follow a predetermined velocity trajectory into the tissue and out of said tissue;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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94. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
a position sensor positioned to provide an indication of a position of the penetrating member during actuation;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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95. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member 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;
wherein said penetrating member is an elongate member without a molded attachment;
a coupler on said force generator configured to engage at least a portion of said elongate portion of the penetrating member and drive said member along a path into a tissue site and withdrawn from a tissue site;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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96. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a plurality of cartridges each containing a penetrating member, each of said cartridges coupled together to define a flexible array;
a transport device for moving each of said cartridges into a launch position operatively coupling said penetrating member to the force generator;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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97. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member having an elongate portion without a molded attachment and operatively coupled to said force generator;
a sterility enclosure covering at least a tip of said penetrating member, said sterility enclosure removed from said penetrating member prior to actuation of the member and positioned so that the penetrating member will not contact said enclosure during actuation;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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98. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member having an elongate portion without a molded attachment and operatively coupled to said force generator;
a sterility enclosure creating a sterile environment around at least a tip of said penetrating member, said penetrating member breaching said sterile environment during actuation;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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99. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member having an elongate portion without a molded attachment and operatively coupled to said force generator;
a sterility enclosure creating a sterile environment around at least a tip of said penetrating member, said penetrating member breaching said sterile environment during actuation;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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100. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member along a path out of a housing having said a penetrating member exit, into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site;
a skin stabilizer device suitable for stretching a surface of a tissue site, said skin stabilizer at least partially surrounding the penetrating member exit;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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101. A body fluid sampling system for use on a tissue site, the system comprising:
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a drive force generator;
a penetrating member operatively coupled to said force generator, said force generator moving said member along a path out of a housing having said a penetrating member exit, into said tissue site, stopping in said tissue site, and withdrawing out of said tissue site;
a user interface for transmitting at least one input between a user;
an analyte detecting member positioned to receive fluid from a wound created by said penetrating member, said detection member configured to determine a concentration of an analyte in the fluid using a sample of less than 1 mL of the fluid.
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Specification