Method and apparatus for body fluid sampling and analyte sensing
First Claim
1. A body fluid sampling system for use on a tissue site, the system comprising:
- a disposable;
a penetrating member driver;
a plurality of penetrating members arranged in a radial configuration in the disposable, wherein sharpened distal tips of the penetrating members point radially outward, and wherein each of the plurality of penetrating members has a packing density of about 0.1 cm3;
wherein an active one of said penetrating members is operatively coupled to said penetrating member driver, said penetrating member driver moving said active one of said penetrating 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;
a processor coupled to the penetrating member driver and configured to provide instructions to the penetrating member driver for a fast-into of said active one penetrating members into the tissue site and slow-out velocity out of the tissue site; and
a plurality of analyte detecting members positioned in the disposable, wherein at least one of said analyte detecting members is positioned to receive less than about 0.1 μ
L of body fluid from a wound created by said active one of said penetrating members, and wherein said plurality of analyte detecting members are not pierced by the active one of the penetrating members.
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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.
2906 Citations
11 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 disposable; a penetrating member driver; a plurality of penetrating members arranged in a radial configuration in the disposable, wherein sharpened distal tips of the penetrating members point radially outward, and wherein each of the plurality of penetrating members has a packing density of about 0.1 cm3; wherein an active one of said penetrating members is operatively coupled to said penetrating member driver, said penetrating member driver moving said active one of said penetrating 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; a processor coupled to the penetrating member driver and configured to provide instructions to the penetrating member driver for a fast-into of said active one penetrating members into the tissue site and slow-out velocity out of the tissue site; and a plurality of analyte detecting members positioned in the disposable, wherein at least one of said analyte detecting members is positioned to receive less than about 0.1 μ
L of body fluid from a wound created by said active one of said penetrating members, and wherein said plurality of analyte detecting members are not pierced by the active one of the penetrating members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A body fluid sampling system for use on a tissue site, the system comprising:
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a disposable; a penetrating member driver; a plurality of penetrating members arranged in a radial configuration in the disposable, wherein sharpened distal tips of the plurality of penetrating members point radially outward, and wherein each of the plurality of penetrating members has an elongate portion and a packing density of about 0.1 cm3; wherein an active one of said penetrating members is operatively coupled to said penetrating member driver, said penetrating member driver moving said active one of said penetrating 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; a processor coupled to the penetrating member driver and configured to provide feedback and instructions to the penetrating member driver for a fast-into velocity of said active one of said penetrating members into the tissue site, a rest time of the sharpened distal tip of said active one of said penetrating members in the tissue site and a slow-out velocity of said active one of said penetrating members out of the tissue site; a plurality of analyte detecting members positioned in the disposable, wherein at least one of said analyte detecting members is positioned to receive less than about 0.1 μ
L of body fluid from a wound created by said active one of said penetrating members, and wherein said plurality of analyte detecting members are not pierced by the active one of the penetrating members; anda coupler on said penetrating member driver configured to engage at least a portion of said elongate portion of said active one of said penetrating members and to drive said active one of said penetrating members along the path into the tissue site and to withdraw it from the tissue site.
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Specification