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;
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 following a predetermined velocity trajectory;
a processor coupled to the penetrating member driver and configured to control a penetrating member velocity into and out of the tissue site via a feedback loop, wherein a velocity of a penetrating member entering the tissue site is greater than a velocity of the penetrating member exiting the 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.
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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
10 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; 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 following a predetermined velocity trajectory; a processor coupled to the penetrating member driver and configured to control a penetrating member velocity into and out of the tissue site via a feedback loop, wherein a velocity of a penetrating member entering the tissue site is greater than a velocity of the penetrating member exiting the 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification