Sensor used together with a detector to measure biomaterial, and apparatus using same

• US 8,778,152 B2
• Filed: 04/30/2010
• Issued: 07/15/2014
• Est. Priority Date: 06/30/2009
• Status: Expired due to Fees

• Current Assignee: Ceragem Medisys Inc.
• Original Assignee: Ceragem Medisys Inc.
• Inventors: Lee, Jin-Woo, Choi, Jae-Kyu, Kim, Tae-Hun, Yoon, Young-Il
• Primary Examiner(s): LEONG, SUSAN DANG
• Application Number:
  US13/376,720
• Publication Number:
  US 20120073968A1
• Time in Patent Office: 1,537 Days
• Field of Search: 20440301-40315, 205/777.5, 205/778, 205/792, 435 4- 4052, 422 681- 98, 436 62- 71, 436500-548
• US Class Current: 204/403.02
• CPC Class Codes: G01N 27/3272 Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels optical biosensors G01N33/52

Abstract

The present invention relates to a sensor used together with a detector to measure biomaterial, and to an apparatus using same. A sensor of the present invention comprises: a body portion with a three-dimensional shape, having a biomaterial introduction hole, and attachable and detachable to/from a detector; a sensor portion with a plurality of reaction electrodes formed on one surface thereof, and a plurality of transfer electrodes formed on the other surface thereof; and an analyzer reagent fixed above the reaction electrodes. The sensor portion, together with the body portion, forms a reaction chamber connected to the biomaterial introduction hole, and is attached to the body portion such that the reaction electrodes are oriented toward the reaction chamber. According to the present invention, attachment and detachment is easy, even for the elderly, and the contamination of the sensor can be minimized.

Claims

1. A biomaterial measuring sensor used with a detector to measure a biomaterial, comprising:

a body portion having a recess for holding an end of a detector and a cavity vertically passing through the body portion at the bottom of the recess, wherein the cavity includes a reaction chamber at upper portion thereof, a capillary tube connected to the reaction chamber under the reaction chamber and having a width smaller than the width of the reaction chamber, and a biomaterial introduction hole connected to the capillary tube under the capillary tube, and wherein the body portion is configured to be attached to and detached from the detector; and

a sensor portion having a reactive electrode on a lower surface, a reaction reagent fixed onto the reactive electrode and biochemically reacting with the biomaterial, a conductive electrode configured to transmit a signal generated by the biochemical reaction to the detector and positioned on an upper surface which is the opposite surface to the lower surface, and a conductor passing through the sensor portion and electrically connecting the reactive electrode to the conductive electrode,

wherein the sensor portion is positioned on the bottom of the recess to cover the reaction chamber and attached to the body portion such that the reactive electrode and the reaction reagent are positioned over and faces the reaction chamber and the capillary tube, and the conductive electrode is exposed to the recess.

2. The biomaterial measuring sensor according to claim 1, wherein the biomaterial introduction hole has a projection shape.

3. The biomaterial measuring sensor according to claim 1, wherein the body portion has a conical or pyramidal shape and the biomaterial introduction hole formed in an apex of the conical or pyramidal shape.

4. The biomaterial measuring sensor according to claim 1, wherein the body portion has an open trapezoidal shape.

5. The biomaterial measuring sensor according to claim 1, wherein the body portion and the detector are attached to each other by a magnetic force.

6. The biomaterial measuring sensor according to claim 4, wherein a side surface of the body portion is attached in a cuttable manner to a side surface of another biomaterial measuring sensor.

7. The biomaterial measuring sensor according to claim 1, wherein the body portion has a hook fastened to the detector.

13. The biomaterial measuring sensor according to claim 1, further comprising:

a sensor fixing portion positioned on the sensor portion in the recess to fix the sensor portion to the body portion, wherein the sensor fixing portion has an opening to expose the conductive electrode of the sensor portion.

8. A biomaterial measuring apparatus including a detector and a measuring sensor,

wherein the measuring sensor comprises:

a body portion having a recess for holding an end of the detector and a cavity vertically passing through the body portion at the bottom of the recess, wherein the cavity includes a reaction chamber at upper portion thereof, a capillary tube connected to the reaction chamber under the reaction chamber and having a width smaller than the width of the reaction chamber, and a biomaterial introduction hole connected to the capillary tube under the capillary tube, and wherein the body portion is configured to be attached to and detached from the detector; and

a sensor portion having a reactive electrode on a lower surface, a reaction reagent fixed onto the reactive electrode and biochemically reacting with the biomaterial, a conductive electrode configured to transmit a signal generated by the biochemical reaction to the detector and positioned on an upper surface which is the opposite surface to the lower surface, and a conductor passing through the sensor portion and electrically connecting the reactive electrode to the conductive electrode,

wherein the sensor portion is positioned on the bottom of the recess to cover the reaction chamber and attached to the body portion such that the reactive electrode and the reaction reagent are positioned over and faces the reaction chamber and the capillary tube, and the conductive electrode is exposed to the recess,

wherein the detector comprises a connector protruding from the detector and electrically connected to the conductive electrodes when the recess holds the end of the detector.

9. The biomaterial measuring apparatus according to claim 8, wherein the detector further comprises an ejector configured to detach the measuring sensor.

10. The biomaterial measuring apparatus according to claim 8, wherein the connector further comprises a resilient body configured to provide a resilient force in a direction in which the measuring sensor is attached to the detector.

11. The biomaterial measuring apparatus according to claim 8, wherein the detector further comprises a groove fastened to a hook.

12. The biomaterial measuring apparatus according to claim 8, wherein the detector has a magnetic force around the connector.

14. The biomaterial measuring apparatus according to claim 8, further comprising:

a sensor fixing portion positioned on the sensor portion in the recess to fix the sensor portion to the body portion, wherein the sensor fixing portion has an opening to expose the conductive electrode of the sensor portion.