CN213813436U - Electrochemical test strip and electrochemical measurement system - Google Patents
Electrochemical test strip and electrochemical measurement system Download PDFInfo
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- CN213813436U CN213813436U CN202022757776.1U CN202022757776U CN213813436U CN 213813436 U CN213813436 U CN 213813436U CN 202022757776 U CN202022757776 U CN 202022757776U CN 213813436 U CN213813436 U CN 213813436U
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Abstract
The application discloses electrochemistry examination strip and electrochemistry measurement system, electrochemistry examination strip, including electrochemistry examination strip body, is provided with two electrodes on the electrochemistry examination strip body at least, when electrochemistry examination strip body inserted the tester, can form an electrode intercommunication return circuit that does not communicate with the sample that awaits measuring by two electrodes at least to, can form a sample intercommunication return circuit that is linked together with the sample that awaits measuring by two electrodes at least. Obviously, because the electrodes on the same electrochemical test strip have the same electrode impedance value, when the impedance values of the electrode communication loop and the sample communication loop on the electrochemical test strip body are obtained through measurement, the impedance value of the electrode in the sample communication loop can be removed by using the impedance value of the electrode communication loop, and therefore, the impedance error carried by the electrode in the electrochemical test strip is prevented from being introduced into the sample measurement result of a tester, and the accuracy and the reliability of the blood sugar test result of the tester can be further improved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an electrochemistry examination strip and an electrochemistry measurement system.
Background
Currently, when measuring blood sugar content of people by using an electrochemical method, an electrochemical test strip is usually used as a collection medium to collect signals. When the electrochemical test strip is used for measuring the blood glucose concentration of a tester, the tester usually needs to drop finger blood to a sample collection area of the electrochemical test strip, and because the sample collection area is provided with relevant chemical substances, when the blood is dropped to the sample collection area of the electrochemical test strip, a corresponding electric loop is formed in the electrochemical test strip, and at the moment, the blood glucose concentration of the tester can be obtained by measuring the impedance value of the electric loop.
Referring to fig. 1, fig. 1 is a block diagram of a prior art electrochemical strip, which can be used to test the blood glucose level of a subject only by measuring the impedance of an electrical circuit formed by electrodes and a sample. Because the electrode impedance characteristics of the test strip can generate different differences in the printing process, when the electrochemical test strip shown in fig. 1 is used for testing the blood glucose content of a tester, the impedance error carried by the electrodes in the electrochemical test strip is introduced into the blood glucose measurement result of the tester, so that the blood glucose measurement result of the tester is inaccurate and unreliable. At present, no effective solution exists for the technical problem.
Therefore, how to further improve the accuracy and reliability of the blood glucose test result of the tester is a technical problem to be urgently solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an electrochemical test strip and an electrochemical measurement system to further improve the accuracy and reliability of the blood sugar test result of the tester. The specific scheme is as follows:
an electrochemical test strip comprises an electrochemical test strip body, wherein at least two electrodes are arranged on the electrochemical test strip body, when the electrochemical test strip body is inserted into a tester, at least one electrode communicating loop which is not communicated with a sample to be tested can be formed by the two electrodes, and at least one sample communicating loop which is communicated with the sample to be tested can be formed by the two electrodes.
Preferably, the electrochemical test strip body comprises a first electrode and a second electrode, the first electrode is arranged on the periphery of the electrochemical test strip body in a U shape, a protruding part is arranged at the position of the U-shaped bent part of the first electrode, the second electrode is a strip-shaped electrode with a bent part at one end, the second electrode is arranged on the inner periphery of the first electrode, and the protruding part extends into the groove of the bent part of the second electrode, but the protruding part is not connected with the second electrode; a first electric contact point and a second electric contact point are respectively arranged at two ends of the first electrode, and a strip-shaped end of the second electrode is provided with a third electric contact point; when the electrochemical test strip body is inserted into the tester through the first electrical contact point, the second electrical contact point and the third electrical contact point, the first electrode forms a first electrode communication loop, and the first electrode, the second electrode and the sample to be tested form a first sample communication loop.
Preferably, the method further comprises the following steps: the third electrode is arranged on the periphery of the first electrode, the U-shaped bent part of the third electrode and the U-shaped bent part of the first electrode are positioned on the same side, and a fourth electric contact point and a fifth electric contact point are respectively arranged at two ends of the third electrode; the third electrode forms a second said electrode communication loop when the electrochemical strip body is inserted into the test meter via the first electrical contact, the second electrical contact, the third electrical contact, the fourth electrical contact, and the fifth electrical contact.
Preferably, the electrochemical strip body includes a fourth electrode, a fifth electrode and a sixth electrode, the fourth electrode is U-shaped and disposed at an outer periphery of the electrochemical strip body, the fifth electrode is a strip-shaped electrode having a bending portion at one end, the fifth electrode is disposed at an inner periphery of the fourth electrode, the sixth electrode is L-shaped and disposed at an inner periphery of the fourth electrode, and an L-shaped end of the sixth electrode extends into the groove of the bending portion of the fifth electrode but is not connected to the fifth electrode, a sixth electrical contact and a seventh electrical contact are respectively disposed at two ends of the fourth electrode, an eighth electrical contact is disposed at a strip-shaped end of the fifth electrode, and a ninth electrical contact is disposed at a strip-shaped end of the sixth electrode; when the electrochemical test strip body is inserted into the tester through the sixth electrical contact point, the seventh electrical contact point, the eighth electrical contact point and the ninth electrical contact point, the fourth electrode forms a third electrode communication loop, and the fifth electrode, the sixth electrode and the sample to be tested form a second sample communication loop.
Preferably, the electrodes on the electrochemical test strip body are all electrodes composed of gold.
Preferably, the electrodes on the electrochemical test strip body are all electrodes composed of carbon.
Correspondingly, the utility model also discloses an electrochemistry measurement system, including the tester, still include as aforementioned a disclosed electrochemistry examination strip.
It is thus clear that in the utility model provides an among the electrochemistry examination strip, set up two electrodes on the electrochemistry examination strip at least, wherein, when the electrochemistry body inserted the tester, can form an electrode intercommunication return circuit that does not communicate with the sample that awaits measuring by the electrode on the electrochemistry examination strip at least to and at least one sample intercommunication return circuit that is linked together with the sample that awaits measuring. Obviously, because the electrodes on the same electrochemical test strip have the same electrode impedance value, when the impedance values of the electrode communication loop and the sample communication loop on the electrochemical test strip body are obtained through measurement, the impedance value of the electrode in the sample communication loop can be removed by using the impedance value of the electrode communication loop, and therefore, the impedance error carried by the electrode in the electrochemical test strip is prevented from being introduced into the blood sugar measurement result of a tester, and the accuracy and the reliability of the blood sugar measurement result of the tester can be further improved. Correspondingly, the utility model provides an electrochemistry measurement system has above-mentioned beneficial effect equally.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of a prior art electrochemical test strip;
FIG. 2 is a diagram of an electrochemical test strip according to an embodiment of the present invention;
FIG. 3 is a block diagram of another electrochemical test strip provided in an embodiment of the present invention;
fig. 4 is a block diagram of another electrochemical test strip provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a novel electrochemistry examination strip, this electrochemistry examination strip include electrochemistry examination strip body, are provided with two electrodes on the electrochemistry examination strip body at least, when electrochemistry examination strip body inserted the tester, can form an electrode intercommunication return circuit that does not communicate with the sample that awaits measuring by two electrodes at least to, can form a sample intercommunication return circuit that is linked together with the sample that awaits measuring by two electrodes at least.
In this embodiment, a novel electrochemical test strip is provided, by which the accuracy and reliability of the blood glucose test result of the tester can be further improved. Specifically, the electrochemical test strip body is provided with at least two electrodes, and when the electrochemical test strip body is inserted into the tester, the electrodes on the electrochemical test strip body can form at least one electrode communication loop which is not communicated with a sample to be tested and at least one sample communication loop which is communicated with the sample to be tested.
It can be considered that, since the electrodes on the same electrochemical test strip body have the same electrode impedance value, in this case, when the tester measures the impedance value of the electrode connection loop on the electrochemical test strip body and the impedance value of the sample connection loop, the impedance value of the electrode connection loop can be used to remove the impedance value of the electrode in the sample connection loop, and only the impedance value of the sample to be tested remains. Obviously, the electrochemical test strip can avoid introducing impedance errors carried by the electrodes into the blood sugar measurement result of the tester, so the accuracy and reliability of the blood sugar measurement result of the tester can be further improved by using the electrochemical test strip.
It can be seen that, in the electrochemical test strip provided in this embodiment, at least two electrodes are disposed on the electrochemical test strip, wherein when the electrochemical body is inserted into the test meter, at least one electrode connection loop that is not connected to the sample to be tested and at least one sample connection loop that is connected to the sample to be tested can be formed by the electrodes on the electrochemical test strip. Obviously, because the electrodes on the same electrochemical test strip have the same electrode impedance value, when the impedance values of the electrode communication loop and the sample communication loop on the electrochemical test strip body are obtained through measurement, the impedance value of the electrode in the sample communication loop can be removed by using the impedance value of the electrode communication loop, and therefore, the impedance error carried by the electrode in the electrochemical test strip is prevented from being introduced into the blood sugar measurement result of a tester, and the accuracy and the reliability of the blood sugar measurement result of the tester can be further improved.
Based on the above embodiments, the present embodiment further describes and optimizes the technical solution, please refer to fig. 2, and fig. 2 is a structural diagram of an electrochemical test strip provided by the embodiment of the present invention. As a preferred embodiment, the electrochemical test strip body comprises a first electrode 11 and a second electrode 12, the first electrode 11 is disposed on the outer periphery of the electrochemical test strip body in a U shape, and the first electrode 11 is provided with a protruding portion at the U-shaped bent portion, the second electrode 12 is a strip-shaped electrode having a bent portion at one end, the second electrode 12 is disposed on the inner periphery of the first electrode 11, and the protruding portion extends into the groove of the bent portion of the second electrode 12, but the protruding portion is not connected to the second electrode 12; a first electric contact point 101 and a second electric contact point 102 are respectively arranged at two ends of the first electrode 11, and a third electric contact point 103 is arranged at one strip-shaped end of the second electrode 12; when the electrochemical test strip body is inserted into the tester through the first electrical contact point 101, the second electrical contact point 102 and the third electrical contact point 103, the first electrode 11 forms a first electrode communication loop, and the first electrode 11, the second electrode 12 and the sample to be tested form a first sample communication loop.
In this example, an embodiment of an electrochemical test strip is provided, please refer to fig. 2. In the electrochemical strip shown in fig. 2, there are two electrodes, wherein when the electrochemical strip is inserted into the tester through the first electrical contact point 101, the second electrical contact point 102 and the third electrical contact point 103, the first electrode 11 forms a first electrode connection loop containing only electrodes, and the left portion of the first electrode 11, the second electrode 12 and the sample to be tested form a first sample connection loop containing both electrodes and the sample to be tested.
When the electrochemical test strip is used for measuring the impedance value of a sample to be measured, the impedance value of a first electrode communication loop formed by the first electrode 11 can be obtained firstly, and then the impedance value of a first sample communication loop formed by the left part of the first electrode 11, the second electrode 12 and the sample to be measured is obtained; it is conceivable that, in the electrochemical test strip, the impedance value of the first electrode connection loop is approximately equal to the sum of the impedance values of the first sample connection loop after the left portion of the first electrode 11 and the second electrode are connected, so that the impedance value of the sample to be tested can be obtained by subtracting the impedance value of the first electrode connection loop from the impedance value of the first sample connection loop.
Obviously, the electrode impedance value of the electrode in the first sample communicating loop can be removed by the method, so that the impedance error of the electrode in the electrochemical test strip can be prevented from being introduced into the blood sugar measurement result of the tester by the method, and the accuracy and the reliability of the blood sugar measurement result of the tester can be further improved.
Referring to fig. 3, fig. 3 is a structural diagram of another electrochemical test strip according to an embodiment of the present invention. As a preferred embodiment, the electrochemical test strip further comprises: a U-shaped third electrode 13, wherein the third electrode 13 is disposed on the outer periphery of the first electrode 11, the U-shaped bent portion of the third electrode 13 and the U-shaped bent portion of the first electrode 11 are located on the same side, and a fourth electrical contact point 104 and a fifth electrical contact point 105 are respectively disposed at two ends of the third electrode 13; when the electrochemical strip body is inserted into the tester via the first electrical contact 101, the second electrical contact 102, the third electrical contact 103, the fourth electrical contact 104, and the fifth electrical contact 105, the third electrode 13 forms a second electrode 12 communication loop.
In this example, another embodiment of an electrochemical test strip is provided, see fig. 3. In the electrochemical test strip shown in fig. 3, three electrodes are provided, that is, an electrode is added to the outer periphery of the electrochemical test strip body based on the structure of the electrochemical test strip shown in fig. 2.
When the electrochemical test strip is inserted into the tester through the first electrical contact point 101, the second electrical contact point 102, the third electrical contact point 103, the fourth electrical contact point 104 and the fifth electrical contact point 105, the first electrode 11 forms a first electrode connection loop only containing electrodes, the third electrode 13 forms another second electrode connection loop only containing electrodes, and the left portion of the first electrode 11, the second electrode 12 and the sample to be tested form a first sample connection loop containing both electrodes and the sample to be tested.
When the electrochemical test strip is used for measuring the blood glucose content of a tester, the impedance value of a sample to be tested can be measured according to the blood glucose testing method of the electrochemical test strip shown in fig. 2, or the impedance value of a second electrode communication loop formed by a third electrode 13 can be obtained first, then the impedance value of a first sample communication loop formed by the left part of a first electrode 11, a second electrode 12 and the sample to be tested is obtained, and the impedance value of the third electrode communication loop is approximately equal to the sum of the impedance values of the first electrode 11 left part and the second electrode in the first sample communication loop, so that the impedance value of the sample to be tested can be obtained by subtracting the impedance value of the second electrode communication loop from the impedance value of the first sample communication loop; or, the impedance value of the sample to be detected can be obtained by measuring with the two methods, and the impedance value of the sample to be detected obtained by single measurement can be corrected and detected. Therefore, the accuracy and the reliability of the blood sugar test result of the tester can be further improved.
Based on the above embodiments, the present embodiment further describes and optimizes the technical solution, please refer to fig. 4, and fig. 4 is a structural diagram of another electrochemical test strip provided by the embodiments of the present invention. As a preferred embodiment, the electrochemical strip body includes a fourth electrode 14, a fifth electrode 15 and a sixth electrode 16, the fourth electrode 14 is disposed on the outer periphery of the electrochemical strip body in a U shape, the fifth electrode 15 is a strip-shaped electrode with a bent portion at one end, the fifth electrode 15 is disposed on the inner periphery of the fourth electrode 14, the sixth electrode 16 is disposed on the inner periphery of the fourth electrode 14 in an L shape, one end of the L-shaped sixth electrode 16 extends into the groove of the bent portion of the fifth electrode 15 but is not connected to the fifth electrode 15, the two ends of the fourth electrode 14 are respectively provided with a sixth electrical contact 106 and a seventh electrical contact 107, one end of the strip-shaped fifth electrode 15 is provided with an eighth electrical contact 108, and one end of the strip-shaped sixth electrode 16 is provided with a ninth electrical contact 109; when the electrochemical test strip body is inserted into the tester through the sixth electrical contact 106, the seventh electrical contact 107, the eighth electrical contact 108 and the ninth electrical contact 109, the fourth electrode 14 forms a third electrode communication loop, and the fifth electrode 15, the sixth electrode 16 and the sample to be tested form a second sample communication loop.
In practical applications, the electrochemical strip may be configured as shown in fig. 4, in which the electrochemical strip has an electrode connection loop only containing electrodes and a sample connection loop containing both electrodes and the sample to be tested.
When the electrochemical test strip is used for measuring the blood sugar content of a tester, firstly, the impedance value of a third electrode communication loop formed by the fourth electrode 12 is obtained, then, the impedance value of a second sample communication loop formed by the fifth electrode 15, the sixth electrode 16 and a sample to be tested is obtained, and as the impedance value of the fourth electrode 14 is approximately equal to the sum of the impedance values of the fifth electrode 15 and the sixth electrode 16, when the impedance value of the third electrode communication loop is subtracted by the impedance value of the second sample communication loop, the impedance value of the sample to be tested in the second sample communication loop can be obtained.
Obviously, because the electrode impedance value of the electrode in the second sample connection loop can be removed by the method, and thus, the impedance error carried by the electrode in the electrochemical test strip is prevented from being introduced into the sample measurement result of the tester, the accuracy and reliability of the blood sugar test result of the tester can be further improved by the electrochemical test strip.
Based on the above examples, this example further describes and optimizes the technical solution, and as a preferred implementation, the electrodes on the electrochemical strip body are all electrodes made of gold.
Specifically, in this embodiment, the electrodes on the electrochemical test strip body are all set to be the electrodes formed by gold, because the gold electrodes not only have good conductivity, but also have the advantage of being difficult to oxidize, so when the electrodes on the electrochemical test strip body are all set to be the gold electrodes, the test process of the sample to be tested can be faster and more sensitive, and therefore, the accuracy and reliability of the test result of the sample can be further improved.
Based on the above examples, this example further describes and optimizes the technical solution, and as a preferred implementation, the electrodes on the electrochemical strip body are all electrodes made of carbon.
In practical application, the electrodes on the electrochemical test strip body can be set to be electrodes composed of carbon, because the carbon electrodes can meet the relevant conductivity requirements in the practical use process, and compared with other types of electrodes, the carbon electrodes have the advantage of low manufacturing cost, so that when the electrodes on the electrochemical test strip body are set to be the carbon electrodes, the design cost required by the electrochemical test strip provided by the application can be relatively reduced.
Correspondingly, the embodiment of the utility model provides an electrochemistry measurement system is still provided, including the tester, still include an electrochemistry examination strip as aforementioned and disclose.
The embodiment of the utility model provides an electrochemistry measurement system has the beneficial effect that an electrochemistry examination strip that aforementioned discloses has.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An electrochemical test strip comprises an electrochemical test strip body, and is characterized in that at least two electrodes are arranged on the electrochemical test strip body, when the electrochemical test strip body is inserted into a tester, at least one electrode communicating loop which is not communicated with a sample to be tested can be formed by the two electrodes, and at least one sample communicating loop which is communicated with the sample to be tested can be formed by the two electrodes.
2. The electrochemical strip of claim 1, wherein the electrochemical strip body comprises a first electrode and a second electrode, the first electrode is disposed on the outer periphery of the electrochemical strip body in a U-shape, and the first electrode is provided with a protrusion at the U-shaped bend, the second electrode is a strip-shaped electrode having a bend at one end, the second electrode is disposed on the inner periphery of the first electrode, and the protrusion extends into the groove of the second electrode in the bend, but the protrusion is not connected to the second electrode; a first electric contact point and a second electric contact point are respectively arranged at two ends of the first electrode, and a strip-shaped end of the second electrode is provided with a third electric contact point; when the electrochemical test strip body is inserted into the tester through the first electrical contact point, the second electrical contact point and the third electrical contact point, the first electrode forms a first electrode communication loop, and the first electrode, the second electrode and the sample to be tested form a first sample communication loop.
3. The electrochemical test strip of claim 2, further comprising: the third electrode is arranged on the periphery of the first electrode, the U-shaped bent part of the third electrode and the U-shaped bent part of the first electrode are positioned on the same side, and a fourth electric contact point and a fifth electric contact point are respectively arranged at two ends of the third electrode; the third electrode forms a second said electrode communication loop when the electrochemical strip body is inserted into the test meter via the first electrical contact, the second electrical contact, the third electrical contact, the fourth electrical contact, and the fifth electrical contact.
4. The electrochemical strip of claim 1, wherein the electrochemical strip body comprises a fourth electrode, a fifth electrode and a sixth electrode, the fourth electrode is disposed on an outer circumferential portion of the electrochemical strip body in a U-shape, the fifth electrode is a strip-shaped electrode having a bending portion at one end, the fifth electrode is disposed on an inner circumferential portion of the fourth electrode, the sixth electrode is disposed on an inner circumferential portion of the fourth electrode in an L-shape, one end of the sixth electrode in the L-shape extends into the groove of the bending portion of the fifth electrode but is not connected to the fifth electrode, a sixth electrical contact and a seventh electrical contact are disposed at two ends of the fourth electrode, respectively, an eighth electrical contact is disposed at one end of the strip-shaped electrode, and a ninth electrical contact is disposed at one end of the strip-shaped electrode; when the electrochemical test strip body is inserted into the tester through the sixth electrical contact point, the seventh electrical contact point, the eighth electrical contact point and the ninth electrical contact point, the fourth electrode forms a third electrode communication loop, and the fifth electrode, the sixth electrode and the sample to be tested form a second sample communication loop.
5. The electrochemical strip of claim 1, wherein the electrodes on the electrochemical strip body are all electrodes composed of gold.
6. The electrochemical strip of claim 1, wherein the electrodes on the electrochemical strip body are all electrodes composed of carbon.
7. An electrochemical measurement system comprising a test meter, further comprising an electrochemical test strip of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757776.1U CN213813436U (en) | 2020-11-25 | 2020-11-25 | Electrochemical test strip and electrochemical measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022757776.1U CN213813436U (en) | 2020-11-25 | 2020-11-25 | Electrochemical test strip and electrochemical measurement system |
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| CN213813436U true CN213813436U (en) | 2021-07-27 |
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| CN202022757776.1U Active CN213813436U (en) | 2020-11-25 | 2020-11-25 | Electrochemical test strip and electrochemical measurement system |
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