# US 12,000,793 B2 · Disposable self-sensing signal test strip and electrochemical sensing method thereof

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- Number: US 12,000,793 B2
- Document ID: US12000793B2
- Status: Granted
- Kind: B2
- Application number: 17/575,970
- Filed: 2022-01-14
- Published: 2023-07-20
- Granted: 2024-06-04
- Earliest claimed: 2022-01-14
- Assignees: Ultrae Co. Ltd.
- Applicants: UltraE Co. Ltd
- Inventors: Hsieh-Hsun Chung; Ping-Hsi Hsieh
- Web page: https://patentgrep.com/patent/US12000793B2

## CPC

- G01N 27/307: {Disposable laminated or multilayered electrodes (G01N27/3272 takes precedence)}
- G01N 27/3273: {Devices therefor, e.g. test element readers, circuitry (details not specific to biochemical electrodes G01N33/4875)}
- G01N 33/48785: {Electrical and electronic details of measuring devices for physical analysis of liquid biological material not specific to a particular test method, e.g. user interface or power supply}
- G01N 27/3272: {Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels (optical biosensors G01N33/52)}
- H04B 1/04: Circuits
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- H04B: TRANSMISSION

## Abstract

A disposable self-sensing signal test strip includes a test strip body. The test strip body has a detection area and a circuit area. The detection area has a detection circuit. An electrochemical processing unit, a wireless transmission unit, and a power source unit are provided in the circuit area. The detection circuit is electrically connected to the electrochemical processing unit. The electrochemical processing unit sends to the detection circuit a control signal for performing detection. After receiving the control signal, the detection circuit reacts electrochemically with the test sample and sends a feedback signal to the electrochemical processing unit. The electrochemical processing unit converts the feedback signal into a detection parameter signal and sends the detection parameter signal through the wireless transmission unit to a receiving unit. The power source unit supplies electricity to the electrochemical processing unit and the wireless transmission unit.

## Claims

### Claim 1

An electrochemical sensing method using a disposable self-sensing signal test strip comprising a test strip body having a detection area for contact with a test sample and a circuit area not for contact with the test sample, the detection area having a detection circuit, the test strip body further having an electrochemical processing unit, a wireless transmission unit, and a power source unit, wherein the electrochemical processing unit, the wireless transmission unit, and the power source unit are provided in the circuit area, the detection circuit is electrically connected to the electrochemical processing unit, and the power source unit is configured to supply electricity to the electrochemical processing unit and the wireless transmission unit, the disposable self-sensing signal test strip further comprising a power source activation means whereby a user is able to selectively activate an ability of the power source unit to supply electricity to the electrochemical processing unit and the wireless transmission unit of claim, the electrochemical sensing method comprising the steps, to be sequentially performed, of:
activating the ability of the power source unit to supply electricity to the electrochemical processing unit and the wireless transmission unit, by the power source activation means;
sending to the detection circuit, by the electrochemical processing unit, the control signal for performing the detection;
reacting with the test sample electrochemically, by the detection circuit after the detection circuit receives the control signal, and sending the feedback signal to the electrochemical processing unit by the detection circuit;
converting the feedback signal into the detection parameter signal by the electrochemical processing unit; and
sending the detection parameter signal, by the electrochemical processing unit through the wireless transmission unit, to the receiving unit not mechanically connected to the disposable self-sensing signal test strip.

### Claim 2 (depends on 1)

The electrochemical sensing method of claim 1, further comprising the step of:
displaying the detection parameter signal by a display of the receiving unit.