Fluid handling devices
First Claim
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1. An apparatus adapted to measure analytes in bodily fluids of a user, said apparatus comprising:
- (a.) a controller, said controller comprising;
a motor; and
an actuator connected to said motor;
(b) a fluid handling module, said fluid handling module comprising;
a skin piercing element comprising a fluid collection channel;
a pressure disk, a sensor disk and an elastomeric disk between the pressure disk and sensor disk;
the sensor disk comprising an inlet chamber connected to a first end of said fluid collection channel and a pumping chamber;
a membrane connected to said actuator, said membrane forming at least a portion of one wall of said pumping chamber, said membrane being movable in response to movement of said actuator;
a connecting channel connecting said collection channel to an inlet end of said pumping chamber;
the elastomeric disk comprising an inlet channel connecting an outlet end of said pumping chamber to an inlet end of a sensor chamber wherein said sensor chamber includes an electrochemical sensor for detecting said analyte, a waste channel connected to an outlet end of said sensor chamber; and
a vent connected to an outlet end of said waste channelwherein the apparatus is worn by the user.
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Abstract
Devices for determining the concentration of an analyte in a fluid are provided. Also provided are systems and kits for use in practicing the subject methods.
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Citations
10 Claims
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1. An apparatus adapted to measure analytes in bodily fluids of a user, said apparatus comprising:
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(a.) a controller, said controller comprising; a motor; and an actuator connected to said motor; (b) a fluid handling module, said fluid handling module comprising; a skin piercing element comprising a fluid collection channel; a pressure disk, a sensor disk and an elastomeric disk between the pressure disk and sensor disk; the sensor disk comprising an inlet chamber connected to a first end of said fluid collection channel and a pumping chamber; a membrane connected to said actuator, said membrane forming at least a portion of one wall of said pumping chamber, said membrane being movable in response to movement of said actuator; a connecting channel connecting said collection channel to an inlet end of said pumping chamber; the elastomeric disk comprising an inlet channel connecting an outlet end of said pumping chamber to an inlet end of a sensor chamber wherein said sensor chamber includes an electrochemical sensor for detecting said analyte, a waste channel connected to an outlet end of said sensor chamber; and a vent connected to an outlet end of said waste channel wherein the apparatus is worn by the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification