Method and apparatus for body fluid sampling and analyte sensing
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Accused Products
Abstract
A body fluid sampling system is provided for use on a tissue site. In one embodiment, the system comprises a cartridge; a penetrating member driver; a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward; wherein an active one of the penetrating members may be operatively coupled to the penetrating member driver, the penetrating member driver moving the active one along a path out of a housing having a penetrating member exit, into the tissue site, stopping in the tissue site, and withdrawing out of the tissue site; and a plurality of analyte detecting members, wherein at least one of the analyte detecting members is positioned to receive fluid from a wound created by the active one of the penetrating members, wherein the detecting members are not pierced by the active one of the penetrating members.
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Citations
98 Claims
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1. (canceled)
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2. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members, wherein said detecting members are not pierced by the active one of the penetrating members. - View Dependent Claims (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)
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64. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members, each having a proximal end, an elongate portion, and a sharpened distal end, said members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members;
wherein said unused analyte detecting members are arranged in a stack. said penetrating member driver configured to be controlled to follow a velocity trajectory into the tissue and out of said tissue, wherein said velocity into said tissue is at an average speed greater than an average speed of the penetrating member on the withdrawal.
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65. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members, wherein said detecting members are not pierced by the active one of the penetrating members;
a position sensor positioned to provide an indication of a position of the penetrating member during actuation.
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66. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members, wherein said detecting members are not pierced by the active one of the penetrating members;
a coupler on said penetrating member driver 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.
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67. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members, wherein said detecting members are not pierced by the active one of the penetrating members;
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
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68. A body fluid sampling system for use on a tissue site, the system comprising:
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a cartridge;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration on the cartridge wherein sharpened distal tips of the penetrating members point radially outward;
wherein an active one of said penetrating members may be operatively coupled to said penetrating member driver, said penetrating member driver moving said active one 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; and
a plurality of analyte detecting members, wherein at least one of said analyte detecting members is positioned to receive fluid from a wound created by said active one of said penetrating members, wherein said detecting members are not pierced by the active one of the penetrating members;
a user interface for transmitting at least one input between a user.
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69. A body fluid sampling device using a penetrating member to extract fluid from an anatomical feature, said device comprising:
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a penetrating member actuator for moving the penetrating member inbound towards the anatomical feature; and
a non-spring based, penetrating member retractor for moving said penetrating member outbound away from the anatomical feature;
wherein said penetrating member actuator is adapted to move said penetrating member at a velocity greater than a velocity achieved by the penetrating member retractor. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. A body fluid sampling device for extracting bodily fluid from an anatomical feature, said device comprising:
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a cartridge having a plurality of cavities;
a plurality of penetrating members, each slidably movable between a first position and a second position to extend outward from said cartridge to penetrate the anatomical feature; and
a penetrating member driver structured to selectively and independently engage said penetrating members, said driver comprising a first resilient member for moving an active one of the penetrating members on an inbound path toward the anatomical feature to create a wound, and a second resilient member for moving the active one of the penetrating members on an outbound path away from the wound. - View Dependent Claims (92, 93, 94, 95, 96, 97)
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98. A body fluid sampling device using a penetrating member to extract fluid from an anatomical feature, said device comprising:
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a penetrating member driver, said driver selected from one of the following;
a motor and gear box, a nanomuscle, pneumatic device, a liquid magnetic coil actuation device, a stepper motor, a micro-clutch device, and an inductive motor;
a penetrating coupler attached to said driver, said coupler for releasably connecting the penetrating member to the driver.
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Specification