Diagnostic device
First Claim
1. A method for exposing an active surface at a tip of a diagnostic element of a dermally affixed sensor device to a body fluid for measurement of a concentration of an analyte, comprising:
- inserting a hollow all-around closed guide needle of the dermally affixed sensor device into a patient'"'"'s skin using the dermally affixed sensor device, the hollow guide needle housing the active surface and at least one connection line to control and measuring circuitry of the diagnostic element, and the at least one connection line being fixedly positioned within the dermally affixed sensor device and rigid; and
after insertion of the hollow guide needle, retracting the hollow guide needle only partially into a casing of the dermally affixed sensor device by the hollow guide needle sliding over the at least one connection line to an extent sufficient for exposing the active surface at the tip of the diagnostic element to the body fluid, without a need to temporarily disconnect the at least one connection line between the active surface and the control and measuring circuitry of the diagnostic element.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved diagnostic analyte monitoring device has partially retractable hollow guide needles for the intradermal placement of diagnostic elements fixedly connected to measuring means within this device obviating the need to remove the guide needle and to connect the diagnostic elements to measuring means after placement into the skin. A flexible surface adhering to the skin serves for the subcutaneous implantation of the diagnostic elements within the guide needles and partial retraction of the guide needles exposes the active surface to body fluid, actuated by means designed for easy handling and safe operation. Concentration-time profiles of endogenous and exogenous analytes measured with the device are used to improve drug treatment modalities on an individualized basis.
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Citations
19 Claims
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1. A method for exposing an active surface at a tip of a diagnostic element of a dermally affixed sensor device to a body fluid for measurement of a concentration of an analyte, comprising:
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inserting a hollow all-around closed guide needle of the dermally affixed sensor device into a patient'"'"'s skin using the dermally affixed sensor device, the hollow guide needle housing the active surface and at least one connection line to control and measuring circuitry of the diagnostic element, and the at least one connection line being fixedly positioned within the dermally affixed sensor device and rigid; and after insertion of the hollow guide needle, retracting the hollow guide needle only partially into a casing of the dermally affixed sensor device by the hollow guide needle sliding over the at least one connection line to an extent sufficient for exposing the active surface at the tip of the diagnostic element to the body fluid, without a need to temporarily disconnect the at least one connection line between the active surface and the control and measuring circuitry of the diagnostic element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification