Examination element and examination container
First Claim
Patent Images
1. An examination element comprising:
- an antenna;
a reagent portion;
a sensor configured to detect a change of color or a colored degree of the reagent portion;
a semiconductor device configured to transmit a wireless signal corresponding to data detected by the sensor from the antenna;
a battery electrically connected to the sensor and the semiconductor device;
a charge circuit configured to charge the battery using an electric power generated from a wireless signal received by the antenna, the charge circuit comprising a constant current source and a switch circuit; and
a charge control circuit electrically connected to the switch circuit and the battery;
wherein a first terminal of the switch circuit is electrically connected to the constant current source,wherein a second terminal of the switch circuit is electrically connected to the battery,wherein the charge control circuit is configured to output low-level potential to a third terminal of the switch circuit so that the first terminal of the switch circuit is electrically connected to the second terminal of the switch circuit when the battery is not overcharged, andwherein the charge control circuit is configured to output high-level potential to the third terminal of the switch circuit so that the first terminal of the switch circuit is not electrically connected to the second terminal of the switch circuit when the battery is overcharged.
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Abstract
The present invention relates to an examination element that includes an antenna; a hygroscopic portion that absorbs a specimen; a reagent portion that reacts with the specimen; and a chip including a semiconductor device capable of wireless communication and a photo sensor that detects a change in a color of the reagent portion. A change in the reagent portion is detected by the photo sensor, the detected data is stored in the semiconductor device capable of wireless communication, and the data is transmitted to an external database.
26 Citations
18 Claims
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1. An examination element comprising:
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an antenna; a reagent portion; a sensor configured to detect a change of color or a colored degree of the reagent portion; a semiconductor device configured to transmit a wireless signal corresponding to data detected by the sensor from the antenna; a battery electrically connected to the sensor and the semiconductor device; a charge circuit configured to charge the battery using an electric power generated from a wireless signal received by the antenna, the charge circuit comprising a constant current source and a switch circuit; and a charge control circuit electrically connected to the switch circuit and the battery; wherein a first terminal of the switch circuit is electrically connected to the constant current source, wherein a second terminal of the switch circuit is electrically connected to the battery, wherein the charge control circuit is configured to output low-level potential to a third terminal of the switch circuit so that the first terminal of the switch circuit is electrically connected to the second terminal of the switch circuit when the battery is not overcharged, and wherein the charge control circuit is configured to output high-level potential to the third terminal of the switch circuit so that the first terminal of the switch circuit is not electrically connected to the second terminal of the switch circuit when the battery is overcharged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An examination element comprising:
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an antenna; a reagent portion; a sensor configured to detect a change of color or a colored degree of the reagent portion; a light source configured to irradiate the reagent portion with light; a semiconductor device configured to transmit a wireless signal corresponding to data detected by the sensor from the antenna; a battery electrically connected to the sensor and the semiconductor device; a charge circuit configured to charge the battery using an electric power generated from a wireless signal received by the antenna, the charge circuit comprising a constant current source and a switch circuit; and a charge control circuit electrically connected to the switch circuit and the battery, wherein the reagent portion, the light source, the sensor, and the semiconductor device are stacked with one another, wherein a first terminal of the switch circuit is electrically connected to the constant current source, wherein a second terminal of the switch circuit is electrically connected to the battery, wherein the charge control circuit is configured to output low-level potential to a third terminal of the switch circuit so that the first terminal of the switch circuit is electrically connected to the second terminal of the switch circuit when the battery is not overcharged, and wherein the charge control circuit is configured to output high-level potential to the third terminal of the switch circuit so that the first terminal of the switch circuit is not electrically connected to the second terminal of the switch circuit when the battery is overcharged. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification