CN114199948A - Electronic quality control card of dry biochemical analyzer and electronic quality control method thereof - Google Patents
Electronic quality control card of dry biochemical analyzer and electronic quality control method thereof Download PDFInfo
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- CN114199948A CN114199948A CN202111520677.4A CN202111520677A CN114199948A CN 114199948 A CN114199948 A CN 114199948A CN 202111520677 A CN202111520677 A CN 202111520677A CN 114199948 A CN114199948 A CN 114199948A
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Abstract
The invention belongs to the technical field of dry biochemical analyzers, and discloses an electronic quality control card of a dry biochemical analyzer and an electronic quality control method thereof. The electronic quality control card is made of a PCB board, and a plurality of contact circuits and micro switches are arranged on the electronic quality control card; when a user puts an electronic quality control card into an instrument to execute quality control operation, the instrument can execute sample driving action according to a detection flow of a real card to be detected, an action execution unit on the instrument can trigger a micro switch on the electronic quality control card, the change of the state of the micro switch can cause the on-off change of a contact circuit channel, the instrument takes the detected change of the contact circuit channel as a condition for judging the motion state, and therefore the complete detection action of the quality control instrument can be realized by simulating the real test card through the electronic quality control card. The application eliminates the cost burden of using quality control liquid and a real test card, avoids the one-sided problem that the traditional electronic quality control only carries out signal detection and quality control, realizes comprehensive quality control, and has simple operation and convenient use.
Description
Technical Field
The invention belongs to the technical field of dry biochemical analyzers, and particularly relates to an electronic quality control card of a dry biochemical analyzer and an electronic quality control method thereof.
Background
The instrument for in vitro diagnosis needs to be regularly self-checked, quality-controlled or calibrated to ensure that the instrument functions normally and the detection performance meets the requirements of the national regulatory authorities on the products. Therefore, the in vitro diagnostic apparatus usually needs to be equipped with a corresponding quality control mode, so that a user can clearly determine whether the function and the performance of the apparatus are normal and whether the detection result is reliable in the using process.
The dry biochemical analyzer is one of the in vitro diagnostic apparatuses, and the dry biochemical analyzer needs to be used together with a dry test card, and the chemical sensor is usually integrated on the dry test card. There are two common quality control methods for dry biochemical analyzers: one is to use electronic mode to control quality, to confirm whether the signal detection function of the instrument is normal; one is to use quality control liquid to control quality and confirm whether the performance of the dry test card is normal. Currently, the representative products of the dry biochemical analyzer include a blood gas analyzer i-STAT manufactured by Yapei corporation and an i-15 biochemical blood gas analyzer manufactured by Ribang corporation, and both products provide two quality control modes of electronic quality control and quality control of quality control liquid so as to confirm whether the functional performance of a detection system (an instrument and a dry test card) is normal.
The electronic quality control can provide a reusable electronic test card, the test card does not need a user to apply a detection sample, the test card is directly inserted into an instrument to operate a quality control flow, and if inherent electronic information (usually a resistor) read by the instrument on the electronic test card is the same as a value preset in the instrument, the signal acquisition function of the instrument is normal, and the quality control is passed; the electronic test card is also called an electronic quality control card.
Quality control liquid quality control is to provide a standard solution (quality control liquid) to replace a detection sample, and the standard solution is usually a national standard or a standard sample developed and produced by enterprises independently. After a user adds a standard sample to a test card instead of a test sample, the standard sample is put into a detection instrument to execute a quality control process, and if the detected data is the same as the data preset in the instrument, the instrument and the test card are normal; such standard samples for quality control instruments and test cards are also called quality control liquids.
Because the price of the quality control liquid is high, the quality control liquid is a consumable and needs to be used by a consumption test card, the frequency of the quality control liquid at a user end (mainly a hospital) is not high; the electronic quality control card is reused without loss, so the electronic quality control card frequently controls the quality of instruments at a user terminal. In the prior art, the electronic quality control card used by each dry-type in-vitro diagnostic apparatus only performs performance quality control in the aspect of signal detection, which is described by taking yapei i-STAT and i-15 of ribang as examples, during quality control, the apparatus detects resistance information on the electronic quality control card, and as long as the detected value is the same as a preset value, the quality control passes, but whether other functional modules in the apparatus are normal or not is undetected, so the purpose of comprehensive quality control cannot be realized through the electronic quality control card.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides an electronic quality control card for a dry biochemical analyzer and an electronic quality control method thereof, which can perform a complete detection operation to perform a comprehensive quality control of the instrument, in addition to signal detection, as in the case of a detection formal card.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an electronic quality control card of a dry biochemical analyzer comprises a PCB, wherein a contact circuit and a switch circuit are arranged on the PCB, and the contact circuit comprises a contact circuit I, a contact circuit II and/or a contact circuit III and a contact circuit IV; the switch circuit comprises a first microswitch and a second microswitch; the first contact circuit is used for judging whether the signal acquisition module is driven in place, the second contact circuit and/or the third contact circuit are used for judging whether the signal acquisition function of the signal acquisition module is normal, the fourth contact circuit is used for simulating whether liquid flow is driven in place, and the fourth contact circuit comprises a first micro switch and a second micro switch, wherein the first micro switch is used for performing action quality control on a detection instrument driving calibration liquid, and the second micro switch is used for detecting action quality control on a detection instrument driving sample to be detected.
Further, the contact circuit includes two first electrode contacts and a first resistor in series connecting the circuit between the two first electrode contacts.
Further, the second contact circuit comprises a second electrode contact, a third electrode contact and a second resistor, the second electrode contact comprises a plurality of electrode contacts connected in series, and the second resistor is connected in series between the second electrode contact and the third electrode contact.
Furthermore, the contact circuit three comprises a plurality of contact circuits, each contact circuit comprises two fourth electrode contacts and a third resistor which is connected in series with a circuit between the two fourth electrode contacts, and the resistance value of the third resistor of each contact circuit can be set according to the requirement.
Furthermore, the contact circuit IV comprises two fifth electrode contacts, a first micro switch and a second micro switch, and a circuit between the two fifth electrode contacts is sequentially connected in series with the first micro switch and the second micro switch; the first microswitch comprises a first pin circuit switch and a fourth resistor connected with the first pin circuit switch in series; the second microswitch comprises a second pin circuit switch and a fifth resistor connected with the second pin circuit switch in parallel; when the first pin circuit switch is closed and the second pin circuit switch is opened, the fourth resistor and the fifth resistor are connected in series and conducted, and the path resistor of the contact circuit four is the sum of the resistors of the fourth resistor and the fifth resistor; when the first pin circuit switch is closed and the second pin circuit switch is also closed, the fifth resistor is shorted and the path resistance of contact circuit four remains only the fourth resistor.
The invention also comprises an electronic quality control method of the electronic quality control card of the dry biochemical analyzer, which comprises the following steps:
step S1: putting the electronic quality control card into an instrument to execute electronic quality control operation; the electronic quality control card comprises a contact circuit I, a contact circuit II and/or a contact circuit III, a contact circuit IV, a micro switch I and a micro switch II; the instrument comprises a signal acquisition module, a first driving unit and a second driving unit;
step S2: the instrument drives the signal acquisition module to move, and when the instrument judges that the signal acquisition module moves in place, the driving is stopped;
step S3: the instrument drives the first driving unit to move, the calibration liquid on the real test card is driven to flow into a liquid flow channel of the real test card in a simulation mode, and when the instrument detects that the contact circuit is switched on and the resistance value of a channel is the sum of the resistance values of the fourth resistor and the fifth resistor, the instrument stops driving;
step S4: the instrument drives the second driving unit to move, a sample to be tested on the real test card is driven to flow into a liquid flow channel of the real test card in a simulation mode, and when the instrument detects that the resistance value of a path of the contact circuit four is changed and the resistance value of the path is changed into the resistance value of a fourth resistor, the instrument stops driving;
step S5: and detecting the resistance value on the second contact circuit and/or the third contact circuit by using a detection channel on the signal acquisition module, judging whether the resistance value detected by the signal acquisition module is the same as a quality control acceptance value of an electronic card preset in the instrument by using the instrument, and outputting a detection judgment result.
Further, in step S2, when the instrument determines that the signal acquisition module moves in place, the driving is stopped, which specifically includes: when a circuit probe on the signal acquisition module is in contact conduction with an electrode contact on the electronic quality control card, and the signal acquisition module detects the resistance value of a first resistor connected to the first contact circuit, the instrument judges that the signal acquisition module moves in place and stops driving.
Further, the step S3 specifically includes: the instrument drives the first driving unit to move, when the first driving unit acts to trigger the first microswitch, the first pin circuit switch is closed, so that the circuits of the first microswitch and the second microswitch are connected in series and conducted, and the path resistor of the contact circuit four is formed by connecting a fourth resistor and a fifth resistor in series; and when the instrument detects that the contact circuit four is conducted and the resistance value of the path is the sum of the resistance values of the fourth resistor and the fifth resistor, the instrument stops driving the first driving unit.
Further, the step S4 specifically includes: the instrument drives the second driving unit to move, and when the second driving unit acts to trigger the second microswitch, the second pin circuit switch is closed, so that the fifth resistor is in short circuit, and only the fourth resistor remains in the path resistor of the contact circuit four; when the instrument detects that the resistance value of the path of the contact circuit four is changed and becomes the resistance value of the fourth resistor, the instrument stops driving the second driving unit.
Further, in step S5, the method includes the steps of determining whether the resistance value detected by the signal acquisition module is the same as a quality control acceptance value of the electronic card set in the instrument, and outputting a detection determination result, where the method specifically includes: judging whether the second resistor and/or the third resistor detected by the instrument judgment signal acquisition module is the same as a quality control acceptance value of an electronic card preset in the instrument or not, if so, indicating that all functional modules of the instrument are normal and the quality control is passed; if not, it indicates that each function module of the instrument has a fault and the quality control is not passed.
Compared with the prior art, the invention has the following beneficial effects:
the invention designs a plurality of motion trigger switch circuits on the electronic quality control card to simulate the complete action flow of an instrument testing real test card so as to achieve the quality control of the complete test flow of the instrument; specifically, when a user puts an electronic quality control card into an instrument to execute quality control operation, the instrument can execute sample driving action according to the detection flow of a real test card, meanwhile, an action execution unit on the instrument can trigger the conduction of a contact circuit on the electronic quality control card or the closing of a microswitch, and the change of the open/closed state of the microswitch can cause the change of the open/close state of a corresponding channel of the contact circuit connected with the microswitch, so that the corresponding channel resistance is changed;
because the electronic quality control card is not a real test card, the invention does not need a user to add a test sample (such as a blood sample), and can also enable the instrument to execute a complete detection action according to the flow of the real test card; the invention eliminates the cost burden caused by using the quality control liquid and the real test card through the electronic quality control mode, also avoids the one-sided problem of signal detection and quality control of the traditional electronic quality control, realizes comprehensive quality control, enables a user to master the complete function condition of the instrument at any time, and has simple operation and convenient use.
Drawings
FIG. 1 is a schematic diagram of a real test card inspection;
FIG. 2 is a schematic structural diagram of an electronic quality control card according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a circuit configuration of a contact circuit of an electronic quality control card according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an electronic quality control card according to an embodiment of the present invention;
the notation in the figure is:
1-a signal acquisition module, 11-a circuit probe; 2-real test card, 21-electrode contact, 22-chemical sensor, 23-liquid flow channel, 24-calibration liquid; 25-sample area; 3-a first drive unit; 4-a second drive unit; 5-electronic quality control card; 51-contact circuit one, 511-first electrode contact; 52-contact circuit two, 521-second electrode contact, 522-third electrode contact; 53-contact circuit three, 531-fourth electrode contact; 54-contact circuit four, 541-fifth electrode contact; 55-first micro-switch, 551-first pin circuit switch; 56-microswitch two, 561-second pin circuit switch; 57-resistor, 571-first resistor, 572-second resistor, 573-third resistor, 574-fourth resistor, 575-fifth resistor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In order to more clearly explain the principle and the detection process of the detection system composed of a dry blood-gas biochemical analyzer and an electronic quality control card 5, a real test card 2 and a flow of instrument matching detection are introduced here, as shown in fig. 1, and the instrument includes a signal acquisition module 1, a circuit probe 11, a first driving unit 3 and a second driving unit 4; the real test card 2 includes electrode contacts 21, a chemical sensor 22, a flow channel 23, a calibration liquid 24, and a sample area 25; the flow of the real test card 2 and the instrument matching detection is as follows:
first, a user adds a test sample (usually a blood sample) to the sample area 25 of the real test card 2, and places the real test card 2 into the instrument, which drives the signal acquisition module 1 to move, so that the circuit probes 11 on the signal acquisition module 1 are electrically connected to the electrode contacts 21 on the real test card 2. Wherein, there are a plurality of electrode contacts 21 on the real test card 2, and the specific number thereof can be determined by the detection items supported by the real test card 2; a liquid flow channel 23 is designed on the real test card 2, a chemical sensor 22 is integrated on the right side of the electrode contact 21, and the chemical sensor 22 is positioned in the liquid flow channel 23.
Then, the first driving unit 3 of the instrument drives the originally built-in calibration liquid 24 of the real test card 2 to flow through the chemical sensor 22 integrated on the right side of each electrode contact 21 along the liquid flow channel 23, the chemical sensor 22 reacts with the calibration liquid 24 to generate an electric signal, and meanwhile, two adjacent electrode contacts 21 form a conducting circuit; when the calibration liquid 24 flows to the last two electrode contacts on the channel, the calibration liquid 24 conducts the last two electrode contacts, the instrument detects that the contact circuit formed by the last two electrode contacts is in a conducting state, that is, the calibration liquid 24 is driven in place, the instrument stops driving continuously, first signal detection is started, the instrument collects an electric signal generated by the reaction of the chemical sensor 22 and the calibration liquid 24 through the signal collection module 1, and the electric signal is recorded as a reference signal.
Then, similar to the driving and detecting process of the calibration liquid, the second driving unit 4 of the apparatus drives the sample (usually a blood sample) to be tested, which is added into the real test card 2 by the user, to flow through the chemical sensor 22 integrated on the right side of each electrode contact 21 along the liquid flow channel 23, the chemical sensor 22 reacts with the sample to be tested to generate an electrical signal, and meanwhile, the two adjacent electrode contacts 21 keep a conducting state; when the sample to be tested flows to the last two electrode contacts of the liquid flow channel, because the resistance values of the sample to be tested and the calibration liquid are different, when the instrument identifies that the resistance value of the contact circuit formed by the last two electrode contacts is changed, the instrument considers that the sample to be tested is driven in place, the instrument stops driving continuously and starts to carry out second signal detection, the instrument acquires an electric signal generated by the reaction of the chemical sensor 22 and the sample to be tested through the signal acquisition module 1 and takes the electric signal as a sample signal, and compares the sample signal with a reference signal of the calibration liquid so as to obtain a parameter value of the test sample according to a corresponding algorithm.
The electronic quality control card 5 introduced in this application embodiment can implement a complete operation of detecting the real card 2 to be detected by the instrument, that is, a user can use the electronic quality control card 5 to perform a complete quality control of the detection process of the instrument, specifically, one of the electronic quality control cards of the dry biochemical analyzer designed in this application embodiment is shown in fig. 2 and 3.
The electronic quality control card 5 is manufactured by using a PCB (printed circuit board) on which a contact circuit and a switch circuit are provided, the contact circuit mainly including an electrode contact and a resistor 57. The contact circuit comprises a first contact circuit 51, a second contact circuit 52 and/or a third contact circuit 53 and a fourth contact circuit 54; the switch circuit comprises a first microswitch 55 and a second microswitch 56; the first contact circuit 51 is used for judging whether the signal acquisition module is driven in place, the second contact circuit 52 and/or the third contact circuit 53 is used for judging whether the signal acquisition function of the signal acquisition module is normal, the fourth contact circuit 54 is used for simulating whether liquid flow is driven in place, and the fourth contact circuit 54 comprises a first micro switch 55 and a second micro switch 56, wherein the first micro switch 55 is used for performing action quality control on a detection instrument driving calibration liquid, and the second micro switch 56 is used for detecting action quality control on a detection instrument driving sample to be detected.
Specifically, the first contact circuit 51 includes two first electrode contacts 511 and a first resistor 571 that serially connects the circuit between the two first electrode contacts 511.
The contact circuit for determining whether the signal acquisition function of the signal acquisition module 1 is normal may be designed as one or a combination of two contact circuit structures, i.e., the second contact circuit 52 and the third contact circuit 53, according to actual requirements.
The second contact circuit 52 includes a second electrode contact 521, a third electrode contact 522 and a second resistor 572, the second electrode contact 521 includes a plurality of electrode contacts connected in series, the second resistor 572 is connected in series between the second electrode contact 521 and the third electrode contact 522, and in addition, the number of the electrode contacts connected in series with the second electrode contact 521 can be set according to actual needs; and the simultaneous quality control of a plurality of signal acquisition channels can be realized through the second contact circuit 52.
The contact circuit three 53 comprises a plurality of contact circuits, each contact circuit comprises two fourth electrode contacts 531 and a third resistor 573 which is connected with the circuit between the two fourth electrode contacts 531 in series, and the number of the contact circuits contained in the contact circuit three 53 and the resistance value of the third resistor 573 of each contact circuit can be set according to actual needs; the quality control of the signal detection channel on different signal ranges can be realized through the contact circuit three 53.
The contact circuit four 54 is positioned at the rightmost end of the electronic card and comprises two fifth electrode contacts 541, a first micro switch 55 and a second micro switch 56, and a circuit between the two fifth electrode contacts is sequentially connected with the first micro switch 55 and the second micro switch 56 in series; the first micro-switch 55 comprises a first pin circuit switch 551 and a fourth resistor 574 connected in series with the first pin circuit switch 551; the second micro-switch 56 comprises a second pin circuit switch 561 and a fifth resistor 575 connected in parallel with the second pin circuit switch 561; when the first pin circuit switch 551 is turned on and the second pin circuit switch 561 is turned off, the fourth resistor 574 and the fifth resistor 575 are connected in series and conducted, and the path resistance of the contact circuit four 54 is the sum of the resistances of the fourth resistor 574 and the fifth resistor 575; when the first pin circuit switch 551 is closed and the second pin circuit switch 561 is also closed, the fifth resistor 575 is shorted out and the path resistance of the contact circuit four 54 remains only the fourth resistor 574.
The electronic quality control method (see fig. 4) designed based on the electronic quality control card 5 of the dry biochemical analyzer in the present application embodiment specifically includes the following processes:
firstly, putting an electronic quality control card 5 into an instrument to execute quality control operation; the instrument drives the signal acquisition module 1 to move, so that a circuit probe 11 on the signal acquisition module 1 is contacted with the electronic quality control card 5; when the circuit probe 11 on the signal acquisition module 1 is in contact conduction with the electrode contact on the electronic quality control card 5, and the signal acquisition module 1 detects the resistance value of the first resistor 571 connected to the contact circuit one 51, the instrument judges that the signal acquisition module 1 moves in place and stops driving.
Then, the instrument drives the second driving unit 3 to move, simulating to drive the calibration liquid on the real test card 2 into the liquid flow channel 23 of the real test card. When the first driving unit 3 acts to trigger the first microswitch 55, the first pin circuit switch 551 is closed, so that the circuits of the first microswitch 55 and the second microswitch 56 are connected in series and conducted, the path resistance of the contact circuit fourth 54 is that the fourth resistor 574 and the fifth resistor 575 are connected in series, and when the instrument detects that the contact circuit fourth 54 is connected and the path resistance value is the sum of the resistances of the fourth resistor 574 and the fifth resistor 575, the instrument stops driving the first driving unit 3.
Next, the instrument starts to drive the second driving unit 4, and simulates driving the sample to be tested on the real test card 2 into the flow channel 23. When the second driving unit 4 acts to trigger the second microswitch 56, the second pin circuit switch 561 is closed, so that the fifth resistor 575 is short-circuited, and the path resistor of the contact circuit four 54 only remains the fourth resistor 574; when the instrument detects that the path resistance value of the contact circuit four 54 changes and becomes the resistance value of the fourth resistor 574, the instrument stops driving the second driving unit 4.
Finally, other signal detection channels on the signal acquisition module 1 can detect the resistance values of the second resistor 572 of the contact circuit two 52 and/or the third resistor 573 of the contact circuit three 53 on the electronic quality control card 5 to judge whether the detected resistance values are the same as the quality control acceptance value of the electronic card set in the instrument, and if the detected resistance values are the same as the quality control acceptance value of the electronic card, it indicates that all functional modules of the instrument are normal and the quality control passes; if not, it indicates that each function module of the instrument has a fault and the quality control is not passed.
The flow of the electronic quality control carried out by the electronic quality control card 5 is completely the same as the flow of the instrument detection real test card and the actions of the instrument, and the complete quality control of the instrument function can be realized, so that the cost burden generated by using quality control liquid and the real test card is eliminated, and the one-sided problem that the electronic quality control mode of the traditional dry biochemical analyzer can only carry out single signal detection quality control is avoided.
The above description is only an example of the present application and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electronic quality control card of a dry biochemical analyzer comprises a PCB and is characterized in that a contact circuit and a switch circuit are arranged on the PCB, and the contact circuit comprises a contact circuit I (51), a contact circuit II (52) and/or a contact circuit III (53) and a contact circuit IV (54); the switch circuit comprises a first micro switch (55) and a second micro switch (56); the contact circuit I (51) is used for judging whether the signal acquisition module is driven to be in place or not, the contact circuit II (52) and/or the contact circuit III (53) is used for judging whether the signal acquisition function of the signal acquisition module is normal or not, the contact circuit IV (54) is used for simulating whether liquid flow is driven to be in place or not, and the contact circuit IV (54) comprises a micro switch I (55) and a micro switch II (56), wherein the micro switch I (55) is used for performing action quality control of a detecting instrument for driving calibration liquid, and the micro switch II (56) is used for detecting action quality control of the instrument for driving a sample to be detected.
2. The electronic quality control card of a dry biochemical analyzer according to claim 1, wherein the first contact circuit (51) comprises two first electrode contacts (511) and a first resistor (571) connected in series to communicate the circuit between the two first electrode contacts (511).
3. The dry biochemical analyzer electronic quality control card according to claim 1, wherein the second contact circuit (52) comprises a second electrode contact (521), a third electrode contact (522) and a second resistor (572), the second electrode contact (521) comprises a plurality of electrode contacts connected in series, and the second resistor (572) is connected in series between the second electrode contact (521) and the third electrode contact (522).
4. The electronic quality control card of a dry biochemical analyzer according to claim 1, wherein the contact circuit three (53) comprises a plurality of contact circuits, each contact circuit comprises two fourth electrode contacts (531) and a third resistor (573) connected in series between the two fourth electrode contacts (531), and the resistance value of the third resistor (573) of each contact circuit can be set as desired.
5. The dry biochemical analyzer electronic quality control card according to any one of claims 1 to 4, wherein the contact circuit four (54) comprises two fifth electrode contacts (541), a first micro switch (55) and a second micro switch (56), and a circuit between the two fifth electrode contacts (541) is connected in series with the first micro switch (55) and the second micro switch (56) in sequence; the first micro-switch (55) comprises a first pin circuit switch (551) and a fourth resistor (574) connected with the first pin circuit switch (551) in series; the second microswitch (56) comprises a second pin circuit switch (561) and a fifth resistor (575) which is connected with the second pin circuit switch (561) in parallel; when the first pin circuit switch (551) is closed and the second pin circuit switch (561) is opened, the fourth resistor (574) and the fifth resistor (575) are connected in series and conducted, and the path resistance of the contact circuit four (54) is the sum of the resistances of the fourth resistor (574) and the fifth resistor (575); when the first pin circuit switch (551) is closed and the second pin circuit switch (561) is also closed, the fifth resistor (575) is shorted and the path resistance of the contact circuit four (54) is left with the fourth resistor (574).
6. An electronic quality control method of an electronic quality control card of a dry biochemical analyzer is characterized by comprising the following steps:
step S1: putting the electronic quality control card (5) into an instrument to execute electronic quality control operation; the electronic quality control card (5) comprises a contact circuit I (51), a contact circuit II (52) and/or a contact circuit III (53), a contact circuit IV (54), a micro switch I (55) and a micro switch II (56); the instrument comprises a signal acquisition module (1), a first driving unit (3) and a second driving unit (4);
step S2: the instrument drives the signal acquisition module (1) to move, and when the instrument judges that the signal acquisition module (1) moves in place, the instrument stops driving;
step S3: the instrument drives the first driving unit (3) to move, the calibration liquid on the real test card (2) is driven to flow into the liquid flow channel (23) of the real test card (2) in a simulation mode, and when the instrument detects that the contact circuit four (54) is conducted and the resistance value of a channel is the sum of the resistance values of the fourth resistor (574) and the fifth resistor (575), the instrument stops driving;
step S4: the instrument drives the second driving unit (4) to move, a sample to be tested on the real test card (2) is driven to flow into the liquid flow channel (23) of the real test card (2) in a simulation mode, and when the instrument detects that the resistance value of a channel of the contact circuit four (54) changes and the resistance value of the channel changes into the resistance value of the fourth resistor (574), the instrument stops driving;
step S5: and detecting the resistance value on the second (52) and/or third (53) contact circuit paths by using the detection channel on the signal acquisition module (1), judging whether the resistance value detected by the signal acquisition module (1) is the same as the quality control acceptance value of an electronic card preset in the instrument by using the instrument, and outputting a detection judgment result.
7. The electronic quality control method of the electronic quality control card of the dry biochemical analyzer according to claim 6, wherein the step S2, when the apparatus determines that the signal collection module (1) is moved in place, stops driving, specifically comprises: when the circuit probe (11) on the signal acquisition module (1) is in contact conduction with the electrode contact on the electronic quality control card (5), and the signal acquisition module (1) detects the resistance value of the first resistor (571) connected on the contact circuit I (51), the instrument judges that the signal acquisition module (1) moves in place and stops driving.
8. The electronic quality control method of the electronic quality control card of the dry biochemical analyzer according to claim 6, wherein the step S3 specifically comprises: the instrument drives the first driving unit (3) to move, when the first driving unit (3) acts to trigger the first microswitch (55), the first pin circuit switch (551) is closed, so that the circuits of the first microswitch (55) and the second microswitch (56) are connected in series and conducted, and the path resistance of the contact point circuit fourth 54 is that the fourth resistor (574) is connected with the fifth resistor (575) in series; when the instrument detects that the contact circuit four (54) is on and the resistance value of the path is the sum of the resistance values of the fourth resistor (574) and the fifth resistor (575), the instrument stops driving the first driving unit (3).
9. The electronic quality control method of the electronic quality control card of the dry biochemical analyzer according to claim 8, wherein the step S4 specifically comprises: the instrument drives the second driving unit (4) to move, when the second driving unit (4) acts to trigger the second microswitch (56), the second pin circuit switch (561) is closed, so that the fifth resistor (575) is short-circuited, and the path resistor of the contact circuit fourth 54 only remains the fourth resistor (574); when the instrument detects that the path resistance value of the contact circuit four (54) changes and becomes the resistance value of the fourth resistor (574), the instrument stops driving the second driving unit (4).
10. The method as claimed in claim 6, wherein in step S5, the step of determining whether the resistance value detected by the signal acquisition module (1) is the same as the electronic card quality control acceptance value set in the instrument and outputting the result of the determination includes: judging whether a second resistor (572) and/or a third resistor (573) detected by the signal acquisition module (1) by the instrument is the same as a quality control acceptance value of an electronic card preset in the instrument, if so, indicating that all functional modules of the instrument are normal and the quality control is passed; if not, it indicates that each function module of the instrument has a fault and the quality control is not passed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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