A blood sugar test strip

Abstract

The invention discloses a blood sugar test strip. An upper insulating layer, a separating layer, an enzyme reaction area and a lower insulating layer are sequentially arranged from top to bottom, the upper insulating layer, the separating layer and the lower insulating layer limit a siphon hollow cavity on the front end of the test strip, one end of the siphon hollow cavity is a blood collecting end, the other end of the siphon hollow cavity is a sample introduction end communicated with the enzyme reaction area, and the opening of the blood collecting end is larger than the opening of the sample introduction end. The blood sugar test strip has the advantages of being small in blood collecting quantity, capable of collecting blood in multiple directions and smooth in siphoning.

Description

technical field [0001] The invention belongs to the technical field of blood sugar testing, in particular to a blood sugar testing strip with improved structure. Background technique [0002] The structure of the traditional blood glucose test strip is that the measuring electrodes are printed on the insulating substrate, the measuring electrodes are covered with enzymes, and the upper part is covered with an insulating cover plate for protection. This traditional rectangular chip can only siphon blood samples from one direction, and it is often necessary to set an exhaust channel behind the siphon tank to facilitate the removal of air. However, the setting of the exhaust channel will inevitably increase the difficulty and cost of the manufacturing process. In addition, once the back of the siphon groove is blocked, the air cannot be removed, which will lead to incomplete siphon and affect the accuracy of the measurement results. [0003] In order to overcome this defect, C...

AI Technical Summary

Problems solved by technology

This traditional rectangular chip can only siphon blood samples from one direction, and it is often necessary to set an exhaust channel behind the siphon tank to facilitate the removal of air, and the setting of the exhaust channel will inevitably increase the difficulty and cost of the manufacturing process

In addition, once the back of the siphon groove is blocked, the air cannot be removed, which will lead to incomplete siphon and affect the accuracy of the measurement results

[0003] In order to overcome this defect, Chinese patent CN2859523Y (disclosure date January 17, 2007) discloses an open type / no-resistance siphon biosensing chip, forming a gap between the substrate and the plastic sheet at the front periphery of the chip. Complete siphon slit cavity. Although the complete siphon slit cavity can solve the problem of siphon obstruction and realize multi-directional free siphon, the siphon slit cavity is relatively large and requires a large amount of blood to fill the Enzyme reaction zone to realize the measurement of blood sugar

However, increasing the amount of blood collected will inevitably increase the pain of the subject.

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