CN205210008U - Blood tester - Google Patents
Blood tester Download PDFInfo
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- CN205210008U CN205210008U CN201521007519.9U CN201521007519U CN205210008U CN 205210008 U CN205210008 U CN 205210008U CN 201521007519 U CN201521007519 U CN 201521007519U CN 205210008 U CN205210008 U CN 205210008U
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- hct
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Abstract
The utility model relates to the field of medical equipment, concretely relates to blood tester, test the test paper and carry out measuring blood testing arrangement with inserting including the test test paper. The utility model discloses velocity of flow data and HCT that the different HCT's of foundation the same passageway of blood sample siphon entering obtained have good linear relation, consequently, through measuring the velocity of flow of blood in the siphon passageway, in the time of the test initial current, can obtain the velocity of flow that leads to the fact because of the HCT difference and then advanced a kind time to utilize these linear relation data to carry out reasonable correction to the initial current of testing, thereby obtain the measuring result of stability, accuracy, and simultaneously, the utility model discloses not only can obtain accurate result under the normal HCT measuring, can also measure serum, high HCT blood sample and measure accurate result. The utility model discloses simple structure, convenient operation is swift.
Description
Technical field
The utility model relates to medical instruments field, is specifically related to a kind of blood tester.
Background technology
Our rapid blood detects (POCT) tester at present, as blood glucose monitoring system, uric acid tester, cholesterol test instrument, glycosylated hemoglobin tester, triglyceride analysis tester etc., the industry emerged fast as medical device industry starts swift and violent growth.The mode of medical treatment is turned to the personal management of domestic medicine and patient by Hospital medical, these are all that people provide great convenience.But meanwhile, Household Medical Appliance, especially blood analysis class medicine equipment, the reliability as the auxiliary foundation of medical diagnosis have received very large query.For blood sugar test, the measured deviation specified in current blood sugar test system GB/T19634-2005 comparatively hospital's biochemical analysis system deviation ± 20%, but from the angle of patient and hospital, deviation is larger.
So far, to most of rapid blood tester, the main source of measured deviation mainly comprises several aspect: the stability of packed cell volume (HCT: the percent in unit blood shared by red blood cell), test paper, the correctness of patient's operation, the selection, blood interfering material etc. of sanitizer, wherein thinks that the accuracy of packed cell volume on blood testing value serves very large impact.But, it is found that according to test for many years and clinical display, the method that patent CN102128932A describes (assesses the difference of the alternating current signal of the generation of different HCT by measuring alternating current signal in this technology, ) undesirable to the compensate function effect of different HCT at present, a fatal problem is also had to be for the higher patient (neonate of HCT, dehydration patient, polycythemia patient etc.), there is very big deviation in test data, sometimes even measurement cannot be completed, by up to the present still not having good method to solve this difficult problem, distinguish different blood sample by the conversion of AC-DC impedance signal and there is significant limitation.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of and measures accurately packed cell volume, and measures the interval large blood tester of packed cell volume.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of blood tester, comprises test paper and can insert test paper and carry out the blood test unit measured, described test paper comprises substrate, conductive layer and responding layer, this conductive layer covers to be located on described substrate, and comprise the first electrode, second electrode, 3rd electrode and the 4th electrode, first electrode, second electrode, 3rd electrode, 4th electrode is first end near one end of a corpse or other object for laboratory examination and chemical testing, one end of close proving installation is the second end, the first end of this first electrode is arranged close to one end of substrate, second electrode, 3rd electrode, the first end of the 4th electrode is arranged away from the first end of the first electrode successively, first electrode and the second electrode form first group of electrode, first electrode and the 3rd electrode form second group of electrode, 4th electrode is reference electrode, first group of electrode and second group of electrode are all for detecting packed cell volume, described responding layer is covered on conductive layer reacts with analysans.
Further, described first group of electrode is in order to give first group of micro-current signal, and second group of electrode gives second group of micro-current signal.
Further, also comprise a upper spacer, this upper spacer to be covered on described conductive layer and to expose one end of conductive layer, and the upper spacer on the other end of this conductive layer is offered a breach, this breach exposes the first electrode, the second electrode and three electrode first end.
Described blood test unit comprises connector, voltage source, detecting unit, microprocessor, storer and display, connector for inserting blood tester test paper, voltage source, for test paper electrode both sides provide voltage; Detecting unit, for detecting the micro-current signal value between Different electrodes group; Microprocessor, receives different micro-current signal value after amplifying and also carries out computing, then carries out computing and obtain measured value; Storer, for storage of measurement data; Display, for display measurement data out.
The beneficial effects of the utility model are:
The utility model enters according to the blood sample siphon of different HCT flow speed data that same passage obtains and HCT has good linear relationship, therefore, by measuring the flow velocity of blood in siphon passage, while test initial current, the flow velocity because HCT difference causes can be obtained and then obtain sample injection time, and utilize the initial current of this linear relationship data to test reasonably to revise, thus stablized, measurement result accurately; Meanwhile, the utility model not only can obtain result accurately under the normal HCT of measurement, can also measure serum, high HCT blood sample measure result accurately.The utility model structure is simple, convenient to operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is test paper structural representation of the present utility model
Fig. 3 is the structural representation of the utility model test paper conductive layer.
Fig. 4 is the structural representation of prior art test paper conductive layer.
Fig. 5 is utility model works program schematic diagram.
In figure: 1, test paper 2, blood test unit 3, substrate 4, upper spacer 5, first electrode 6, second electrode 7, the 3rd electrode 8, the 4th electrode 9, sample region 10, connector 11, conductive layer.
Embodiment
As shown in the figure, the utility model comprises test paper 1 and can insert this test paper and carry out the blood test unit 2 measured.
Described test paper comprises substrate 3, conductive layer 11, responding layer and upper spacer 4.This substrate can be insulating substrate and has electrical insulation characteristics.Described conductive layer covers to be located on aforesaid substrate 3, and comprise the first electrode 5, second electrode 6, 3rd electrode 7 and the 4th electrode 8, first electrode, second electrode, 3rd electrode, 4th electrode is first end near one end of a corpse or other object for laboratory examination and chemical testing, one end of close proving installation is the second end, the first end of this first electrode is arranged close to one end of substrate, second electrode, 3rd electrode, the first end of the 4th electrode is arranged away from the first end of the first electrode successively, first electrode and the second electrode form first group of electrode, first electrode and the 3rd electrode form second group of electrode, 4th electrode is reference electrode, first group of electrode and second group of electrode are all for detecting packed cell volume.Described responding layer is covered on conductive layer reacts with analysans, and this responding layer contains bioactivator etc. makes itself and analysans react, and analysans is conducted electricity.Described upper spacer to be covered on above-mentioned conductive layer and to expose one end of conductive layer, and the upper spacer on the other end of this conductive layer is offered a breach, this breach exposes the first electrode, the second electrode and three electrode first end, and this indentation, there is sample region 9.
Described first group of electrode is in order to give first group of micro-current signal, and second group of electrode gives second group of micro-current signal.
Described blood test unit comprises connector 10, voltage source, detecting unit, microprocessor, storer and display.Connector for inserting blood tester test paper, voltage source, for test paper electrode both sides provide voltage; Detecting unit, for detecting the micro-current signal value between Different electrodes group; Microprocessor, receives different micro-current signal value after amplifying and also carries out computing, then carries out computing and obtain measured value; Storer, for storage of measurement data; Display, for display measurement data out.
When Measurement and analysis substrate concentration, first test paper is inserted in the connector of this blood test unit, and provide a voltage by described voltage source, when blood arrives the second electrode due to syphonic effect from the first electrode, first group of electrode is connected and produces first micro-current signal, when blood arrives the 3rd electrode, second group of electrode is connected and produces second micro-current signal, detecting unit is a current detecting unit, the different micro-current signal value detected is transferred to microprocessor by detecting unit, microprocessor carries out computing to micro-current signal value, carry out computing again and obtain measured value, read by display afterwards.
The course of work of the present utility model is: first test paper is inserted blood test unit, sample is added in sample region to test paper, blood the flow direction be internally spread gradually from the top of test paper, the order specifically flowing through electrode is the first electrode, second electrode, 3rd electrode, 4th electrode, it is first micro-current signal that first electrode and the second electrode are first connected, connect after first electrode and the 3rd electrode be second micro-current signal and based on current signal, first micro-current signal in conjunction with second micro-current signal in the data obtaining after treatment compensating, final basic value and offset determine rear output exact value.
The utility model is according to the blood sample of different HCT, siphon enters flow speed data that same passage obtains and HCT has good linear relationship, by measuring blood flow velocity on the electrically conductive, this series data is utilized to compensate to obtain accurate test result to the measurement error caused because of HCT.
Test paper of the present utility model is printed on many conducting channels be connected with tester, after blood enters sample region, the circuit that successively conducting is different.After the HCT sample that is X enters, first group of electrode is connected, and produces first micro-current signal i
x1, put T writing time simultaneously
x1; Second group of electrode is connected afterwards, produces second micro-current signal i
x2time time point T
x2, calculation level based on the signal of the generation of HCT 45% time, first micro-current signal i
01, put T writing time simultaneously
01; When second group of electrode is connected, produce second micro-current signal i
02time point T
02.Operational formula is as follows:
T
x2-T
x1>=T
02-T
01time:
T
x2-T
x1<T
02-T
01time:
The current value not adding the blood glucose meter of HCT bucking-out system is i
x1(HCT is X), can show that the deviation ratio of two kinds of methods is:
The value of HCT and the HCT=45% deviation of standard larger, at this moment the deviation of measurement result is larger, and such as: the blood of same concentration of glucose, deviation when measurement result during HCT-0 and HCT=45% is likely more than 50%, and it is necessary for therefore carrying out reasonably compensating.The utility model can while test initial current, can obtain, because of the HCT flow velocity that causes of difference and then the sample injection time that obtains, reasonably revising the initial current of test, thus stablized, measurement result accurately.
Claims (4)
1. a blood tester, is characterized in that: comprise test paper and can insert test paper and carry out the blood test unit measured, described test paper comprises substrate, conductive layer and responding layer, this conductive layer covers to be located on described substrate, and comprise the first electrode, second electrode, 3rd electrode and the 4th electrode, first electrode, second electrode, 3rd electrode, 4th electrode is first end near one end of a corpse or other object for laboratory examination and chemical testing, one end of close proving installation is the second end, the first end of this first electrode is arranged close to one end of substrate, second electrode, 3rd electrode, the first end of the 4th electrode is arranged away from the first end of the first electrode successively, first electrode and the second electrode form first group of electrode, first electrode and the 3rd electrode form second group of electrode, 4th electrode is reference electrode, first group of electrode and second group of electrode are all for detecting packed cell volume, described responding layer is covered on conductive layer reacts with analysans.
2. a kind of blood tester according to claim 1, is characterized in that: described first group of electrode is in order to give first group of micro-current signal, and second group of electrode gives second group of micro-current signal.
3. a kind of blood tester according to claim 1, it is characterized in that: also comprise a upper spacer, this upper spacer to be covered on described conductive layer and to expose one end of conductive layer, upper spacer on the other end of this conductive layer is offered a breach, this breach is naked spills the first electrode, the second electrode and three electrode first end.
4. a kind of blood tester according to claim 1, it is characterized in that: described blood test unit comprises connector, voltage source, detecting unit, microprocessor, storer and display, connector is for inserting blood tester test paper, voltage source, for test paper electrode both sides provide voltage; Detecting unit, for detecting the micro-current signal value between Different electrodes group; Microprocessor, receives different micro-current signal value after amplifying and also carries out computing, then carries out computing and obtain measured value; Storer, for storage of measurement data; Display, for display measurement data out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521007519.9U CN205210008U (en) | 2015-12-08 | 2015-12-08 | Blood tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521007519.9U CN205210008U (en) | 2015-12-08 | 2015-12-08 | Blood tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205210008U true CN205210008U (en) | 2016-05-04 |
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ID=55847717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521007519.9U Active CN205210008U (en) | 2015-12-08 | 2015-12-08 | Blood tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205210008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982987A (en) * | 2020-08-27 | 2020-11-24 | 江苏鱼跃医疗设备股份有限公司 | Glucose sensor and measurement correction method |
-
2015
- 2015-12-08 CN CN201521007519.9U patent/CN205210008U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982987A (en) * | 2020-08-27 | 2020-11-24 | 江苏鱼跃医疗设备股份有限公司 | Glucose sensor and measurement correction method |
| CN111982987B (en) * | 2020-08-27 | 2023-04-07 | 江苏鱼跃医疗设备股份有限公司 | Glucose sensor and measurement correction method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |