EP1174078A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hollow microneedle patch
Assignee: Bayer AG
•
Filing: 2001-07-05
•
Granted: —
•
Expires: 2021-07-05
Abstract
Abstract A test strip is provided for use in the determination of the concentration of an a chemical in blood. The test strip comprises a plurality of microneedles and a test area. Each microneedle is adapted to puncture skin and to draw blood. The test area is in fluid communication with the microneedles. The test area contains a reagent adapted to produce a reaction indicative of the concentration of the chemical in blood.
Inventors
- 👤 Robert C. Whitson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 06:24
CPC Classifications
A; A61; A61M; A61M37/00; A61M37/0015; A61B; A61B5/00; A61B5/145; A61B5/14507; A61B5/1451; A61B5/14514; A61B5/14532; A61B5/15; A61B5/150007; A61B5/150015; A61B5/150022; A61B5/150358; A61B5/150755; A61B5/150969; A61B5/150977; A61B5/150984; A61B5/151; A61B5/15142; A61B5/15186; A61B5/157; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/528; A61M2037/0023; A61M2037/003
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
64 words
A test strip for use in the determination of the concentration of an a chemical
in blood, comprising: a plurality of microneedles, each microneedle being adapted to puncture skin
and to draw blood; and a test area in fluid communication with the microneedles, the test area
containing a reagent being adapted to produce a reaction indicative of the
concentration of a chemical in blood.
Claim 2
Dependent Claim
16 words
The test strip of claim 1 wherein the reagent is adapted to produce a
colorimetric reaction.
Claim 3
Dependent Claim
30 words
The test strip of claim 1 wherein the reagent is adapted to produce an
electrochemical reaction, the test strip further comprising a pair of electrodes coupled
to the test area.
Claim 4
Dependent Claim
11 words
The test strip of claim 1 wherein the chemical is glucose.
Claim 5
Dependent Claim
21 words
The test strip of claim 4 in combination with a sensor adapted to measure the
concentration of glucose in the blood.
Claim 6
Dependent Claim
86 words
A blood chemical monitoring system for monitoring the concentration of
chemical in blood, the system comprising: a test chamber having a top and a bottom, the test chamber containing a
reagent; an array of hollow microneedles, each of the hollow microneedles being
adapted to draw blood, each of the microneedles containing an inlet and an outlet, said
inlet being adapted to puncture skin, the outlet being in fluid communication with the
test chamber; and a sensor for determining the concentration of a chemical in the blood.
Claim 7
Dependent Claim
22 words
The system of claim 6 wherein the reagent is adapted to produce a colorimetric
reaction and the sensor is a colorimetric sensor.
Claim 8
Dependent Claim
10 words
The system of claim 6 wherein the chemical is glucose.
Claim 9
Dependent Claim
28 words
The system of claim 6 further comprising an adhesive disposed on the top of
the test chamber, the adhesive being adapted to adhere the test chamber to skin.
Claim 10
Dependent Claim
36 words
The system of claim 6 wherein each hollow microneedle has a generally
cylindrical wall , the cylindrical wall at the inlet being downwardly slanted in a
direction moving radially away from the center of the microneedle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.