Blood gas biochemical test card, blood gas analyzer and control method of blood gas analyzer

Abstract

The present invention discloses a blood gas biochemistry test card, a blood gas analyzer and a control method for the blood gas analyzer. The blood gas biochemistry test card comprises: a test card body, the test card body is provided with a first fluid pipeline, a test cavity communicated with the liquid outlet end of the first fluid pipeline, and a second fluid pipeline communicated with the liquid outlet end of the test cavity, the first fluid pipeline is provided with a first liquid inlet, and the second fluid pipeline is provided with a connecting portion for connecting an aspiration device; a calibration liquid bag, the calibration liquid bag is fixedly arranged on the test card body, and the calibration liquid bag is provided with a matching portion docking with the first liquid inlet; and a valve core, the valve core is arranged in the first fluid pipeline or in the calibration liquid bag, and the valve core is provided with a spike portion for piercing the matching portion. The blood gas biochemistry test card uses the valve core to accurately pierce the calibration liquid bag, so that the calibration liquid can be injected into the first fluid pipeline; the blood gas biochemistry analyzer can conveniently and accurately complete the calibration analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood gas biochemical test card, a blood gas analyzer and a control method for the blood gas analyzer. Background Art

[0002] Blood gas and biochemistry blood gas and biochemistry test cards are widely used in the medical industry. The blood gas and biochemistry test cards integrate biochemical test electrodes, are calibrated with calibration fluid, and then the test fluid (blood) is tested.

[0003] The traditional blood gas biochemistry test card with integrated calibration liquid completes the calibration test by squeezing and pulling the filler in the calibration liquid bag to break the calibration liquid bag during the test, so that the calibration liquid flows into the electrode. However, since the calibration liquid bag is opened by squeezing and pulling, the degree of damage to the calibration liquid bag is difficult to control, and the calibration liquid may flow out, resulting in inaccurate or failed tests. In addition, after calibration, the test liquid needs to be squeezed into the electrode in time for sample testing. Therefore, the operation of the traditional blood gas analyzer is relatively complicated and requires professional operators to perform strict operations, otherwise it is easy to cause inaccurate blood gas parameter tests. Summary of the invention

[0004] Based on this, it is necessary to provide a blood gas and biochemical test card, a blood gas analyzer and a control method for the blood gas analyzer. The blood gas and biochemical test card uses a valve core to accurately puncture the calibration liquid bag so that the calibration liquid can be injected into the first fluid pipeline; the blood gas and biochemical analyzer uses the above-mentioned blood gas and biochemical test card, which can complete the calibration analysis conveniently and accurately, which is conducive to improving the accuracy of the test parameters.

[0005] The technical solution is as follows:

[0006] On the one hand, the present application provides a blood gas and biochemistry test card, including: a test card body, the test card body is provided with a first fluid pipeline, a test cavity communicated with the liquid outlet end of the first fluid pipeline, and a second fluid pipeline communicated with the liquid outlet end of the test cavity, the first fluid pipeline is provided with a first liquid inlet, and the second fluid pipeline is provided with a connecting portion for connecting to a suction device; a calibration liquid bag, the calibration liquid bag is fixedly mounted on the test card body, and the calibration liquid bag is provided with a matching portion docked with the first liquid inlet; and a valve core, the valve core is arranged in the first fluid pipeline or in the calibration liquid bag, and the valve core is provided with a sharp thorn portion for piercing the matching portion.

[0007] When the above-mentioned blood gas biochemistry test card is used, the valve core is built into the calibration liquid bag, and then the calibration liquid bag is integrated into the blood gas biochemistry test card; or the valve core is set on the first fluid pipeline of the blood gas biochemistry test card, and the spike portion can be set toward the matching portion of the calibration liquid bag. In this way, when calibration is required, it is only necessary to press the first fluid pipeline or the calibration liquid bag by external force to drive the spike portion of the valve core to pierce the matching portion, so that the calibration liquid in the calibration liquid bag can flow into the first fluid pipeline of the blood gas biochemistry test card through the first liquid inlet, and the calibration liquid can be guided to be sucked into the test cavity through the first fluid pipeline to perform the calibration process; and then the test liquid is tested and analyzed. The blood gas biochemistry test card uses the spike portion of the valve core to pierce the calibration liquid bag to complete the connection between the calibration liquid bag and the first liquid inlet, so that the calibration liquid bag can be prevented from being damaged too much, resulting in the outflow of the calibration liquid; in addition, the valve core can be set in the blood gas biochemistry test card in a variety of ways, and the manufacturing process is more flexible, which is convenient for reducing manufacturing costs.

[0008] The technical solution is further described below:

[0009] In one embodiment, after the first fluid conduit or the calibration liquid bag is pressurized in a preset direction, it can drive the sharp thorn portion to pierce the matching portion to form a liquid outlet hole.

[0010] In one embodiment, the valve core is provided with a sealing ring arranged around the spike portion; when the valve core is arranged in the calibration liquid bag, after being pressurized in a first preset direction, the sealing ring can seal the liquid outlet; when the valve core is arranged in the first fluid pipeline, after being pressurized in a second preset direction, the sealing ring can seal the first liquid inlet.

[0011] In one embodiment, the sealing ring is made of elastic material.

[0012] In one embodiment, the calibration liquid bag is provided with a first membrane body that can be elastically reset, the valve core is fixed on the inner wall of the first membrane body, and the spike portion is arranged toward the matching portion; or the first fluid pipeline is provided with a second membrane body that can be elastically reset, the valve core is fixed on the inner wall of the second membrane body, and the spike portion is arranged toward the matching portion.

[0013] In one embodiment, the valve core is provided with a first end face and a second end face which are arranged opposite to each other, the first end face is provided with a mounting portion, the second end face is provided with the spike portion, and the spike portion is arranged opposite to the matching portion.

[0014] In one embodiment, the test card body is further provided with a waste liquid storage cavity communicated with the liquid outlet of the test cavity, and the liquid outlet of the waste liquid storage cavity is communicated with the liquid inlet of the second fluid channel.

[0015] In one embodiment, the test card body is further provided with a third fluid conduit, the liquid inlet end of the third fluid conduit is used to access the test fluid, and the liquid outlet end of the third fluid conduit is connected to the liquid inlet end of the test cavity.

[0016] On the other hand, the present application also provides a blood gas analyzer, including the above-mentioned blood gas biochemical test card, and also including an air suction device, a detection device, and a controller communicatively connected to the air suction device and the detection device, the air suction end of the air suction device is connected to the air suction hole of the second fluid pipeline through the connecting part, and the detection end of the detection device is arranged in the test cavity.

[0017] When the blood gas analyzer is in use, when calibration is required, it is only necessary to press the first fluid pipeline or the calibration liquid bag by external force (manual or electric), so that the spiked part of the valve core can pierce the matching part, so that the calibration liquid bag is connected to the first fluid pipeline through the first liquid inlet; the controller is used to accurately control the action of the suction device to suck an appropriate amount of calibration liquid into the test cavity, and then the calibration liquid is analyzed by the detection device to complete the calibration analysis; when the test liquid is subsequently analyzed, the suction device can also be used to suck an appropriate amount of test liquid (such as blood) into the test cavity, and then the test liquid is analyzed by the detection device to obtain a test liquid parameter report. When the blood gas analyzer is performing calibration work, it can accurately control the amount of calibration liquid extracted to ensure that the calibration liquid completely covers the detection end of the detection device, accurately complete the calibration analysis, and obtain accurate calibration parameters, which is conducive to improving the accuracy of the test parameters.

[0018] The technical solution is further described below:

[0019] In one embodiment, the blood gas analyzer further includes a first telescopic device that is communicatively connected to the controller, and the telescopic end of the first telescopic device can press against the first fluid pipeline or the calibration liquid bag in the preset direction, so that the spike portion pierces the matching portion. In this way, when performing calibration analysis, after installing the test card, it is only necessary to input the corresponding instructions to control the action of the first telescopic device through the controller, drive the telescopic end to press against the first fluid pipeline or the calibration liquid bag in the preset direction, so that the spike portion pierces the matching portion, thereby connecting the calibration liquid bag to the first fluid pipeline through the first liquid inlet, and then accurately control the action of the suction device to suck an appropriate amount of calibration liquid into the test cavity, and then use the detection device to analyze the calibration liquid to complete the calibration analysis. The calibration analysis process is simple to operate and highly intelligent, and the operator can complete the calibration analysis without strict training.

[0020] In one embodiment, the telescopic end of the first telescopic device can press against the first fluid pipeline or the calibration liquid bag in the preset direction, and the sealing ring can seal the liquid outlet, or the sealing ring can seal the first liquid inlet.

[0021] In one embodiment, the valve core is provided with a first end face and a second end face which are arranged opposite to each other, the first end face is provided with a connecting portion, the second end face is provided with the spike portion, the spike portion is arranged opposite to the matching portion, the telescopic end of the first telescopic device is arranged in the positive direction of the first end face, and can push the spike portion to move toward the matching portion.

[0022] In one embodiment, the third fluid conduit is provided with a third membrane body that can be elastically reset, and the third membrane body can be pressurized to form a third sealing structure that closes the third fluid channel.

[0023] In one of the embodiments, the blood gas analyzer further comprises a second telescopic device communicatively connected to the controller, and a telescopic end of the second telescopic device can press the third membrane to form the third sealing structure.

[0024] On the other hand, the present application also provides a control method for a blood gas analyzer, comprising the following steps:

[0025] Pressing the first fluid pipeline or the calibration liquid bag in a preset direction so that the thorn portion pierces the matching portion and forms a liquid outlet hole;

[0026] Aspirating the calibration liquid in the calibration liquid bag into the test cavity of the blood gas test card to perform calibration analysis;

[0027] After the calibration analysis is completed, the test liquid is sucked or pushed into the test cavity for test analysis.

[0028] By utilizing the control method of the above-mentioned blood gas analyzer, calibration analysis of the calibration fluid and test analysis of the test fluid can be automatically realized. The operator only needs to insert the syringe containing the test fluid at the beginning of the test, and the operator can leave after the insertion, which saves the operator's operation time and reduces the work intensity. There is no need to worry about leakage of the test fluid, whether the test fluid is appropriate, etc., which can improve the accuracy of the test parameters.

[0029] The technical solution is further described below:

[0030] In one embodiment, after the calibration analysis is completed, the method further includes: closing the liquid outlet of the calibration liquid bag, and then sucking the test liquid into the test cavity to perform test analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1is a schematic structural diagram of a blood gas and biochemical test card in one embodiment;

[0032] Figure 2 for Figure 1 An exploded schematic diagram of the calibration fluid bag shown;

[0033] Figure 3 for Figure 2 The structural schematic diagram of the valve core shown;

[0034] Figure 4 for Figure 3 A schematic cross-sectional view of the valve core shown;

[0035] Figure 5 It is a schematic diagram of a first liquid inlet of a blood gas and biochemistry test card in an embodiment in a closed state (or a valve core piercing matching portion);

[0036] Figure 6 A schematic diagram of a first liquid inlet of a blood gas and biochemistry test card in an embodiment in an open state;

[0037] Figure 7 It is a schematic diagram of another embodiment of the blood gas biochemistry test card in which the first liquid inlet is in a closed state (or the valve core pierces the matching portion);

[0038] Figure 8 is a schematic diagram of a first liquid inlet of a blood gas and biochemistry test card in another embodiment being in an open state;

[0039] Fig. 9 is a schematic diagram of a third fluid conduit of a blood gas and biochemistry test card in an embodiment being in a closed state;

[0040] Fig.10 is a structural schematic diagram of a blood gas analyzer in one embodiment;

[0041] Fig.11 for Fig.10 An exploded schematic diagram of the structure of a blood gas analyzer is shown;

[0042] Fig.12 for Fig.10 A schematic diagram of a blood gas analyzer performing calibration analysis is shown;

[0043] Fig.13 for Fig.10 Schematic diagram of a blood gas analyzer performing test fluid analysis is shown.

[0044] Description of reference numerals:

[0045] 10. Test card, 100. Test card body, 110. First fluid pipeline, 112. First liquid inlet, 114. Second membrane body, 120. Test cavity, 130. Second fluid pipeline, 132. Connecting part, 140. Waste liquid storage cavity, 150. Third fluid pipeline, 152. Third membrane body, 200. Calibration liquid bag, 210. Matching part, 212. Liquid outlet, 220. First membrane body, 300. Valve core, 310. Spike part 320. Sealing ring, 330. Mounting part, 302. First end face, 304. Second end face, 20. Air suction device, 30. Detection device, 40. First telescopic device, 50. Second telescopic device, 60. Controller, 70. Syringe. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is perpendicular, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] The “first”, “second” and “third” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0050] like Figures 1 to 3As shown, in one embodiment, a blood gas and biochemistry test card 10 is provided, including: a test card body 100, the test card body 100 is provided with a first fluid pipeline 110, a test cavity 120 communicated with the liquid outlet end of the first fluid pipeline 110, and a second fluid pipeline 130 communicated with the liquid outlet end of the test cavity 120, the first fluid pipeline 110 is provided with a first liquid inlet 112, and the second fluid pipeline 130 is provided with a connecting portion 132 for connecting to a suction device; a calibration liquid bag 200, the calibration liquid bag 200 is fixedly arranged on the test card body 100, and the calibration liquid bag 200 is provided with a matching portion 210 docking with the first liquid inlet 112; and a valve core 300, the valve core 300 is arranged in the first fluid pipeline 110 or in the calibration liquid bag 200, and the valve core 300 is provided with a spike portion 310 for piercing the matching portion 210.

[0051] When the blood gas biochemistry test card 10 is used, Figure 5 and Figure 6 As shown, the valve core 300 is built into the calibration liquid bag 200, and then the calibration liquid bag 200 is integrated into the blood gas biochemistry test card 10; or, as shown Figure 7 and Figure 8 As shown, the valve core 300 is arranged on the first fluid conduit 110 of the blood gas biochemistry test card 10, and the spike portion 310 can be arranged toward the matching portion 210 of the calibration liquid bag 200. In this way, when calibration is required, it is only necessary to press the first fluid conduit 110 or the calibration liquid bag 200 by external force, so that the spike portion 310 of the valve core 300 can pierce the matching portion 210, so that the calibration liquid in the calibration liquid bag 200 can flow into the first fluid conduit 110 of the blood gas biochemistry test card 10 through the first liquid inlet 112, and the calibration liquid can be guided to be sucked into the test cavity 120 through the first fluid conduit 110 to perform the calibration process; and then the test liquid is tested and analyzed. The blood gas and biochemistry test card 10 uses the spike portion 310 of the valve core 300 to pierce the calibration liquid bag 200 to complete the connection between the calibration liquid bag 200 and the first liquid inlet 112, which can avoid excessive damage to the calibration liquid bag 200 and cause the calibration liquid to flow out; in addition, the valve core 300 can be set in the blood gas and biochemistry test card 10 in a variety of ways, and the manufacturing process is more flexible, which is convenient for reducing manufacturing costs.

[0052] It should be noted that the calibration liquid bag 200 of the calibration liquid can be made of a variety of materials as long as it can meet the storage requirements of the calibration liquid, such as aluminum-plastic composite film, etc. The specific structural shape of the test cavity 120 can be various, such as a section of pipe or cavity, etc.

[0053] On the basis of the above embodiments, in one embodiment, after the first fluid conduit 110 or the calibration liquid bag 200 is pressurized in a preset direction, the spike portion 310 can be driven to pierce the matching portion 210 to form the liquid outlet 212. In this way, it is convenient to apply pressure to the first fluid conduit 110 or the calibration liquid bag 200 in a preset direction, so that the spike portion 310 can accurately pierce the matching portion 210 to form the liquid outlet 212.

[0054] Further, in one embodiment, if Figures 4 to 8 As shown, the valve core 300 is provided with a sealing ring 320 arranged around the spike portion 310; when the valve core 300 is arranged in the calibration liquid bag 200, after being pressed in the first preset direction, the sealing ring 320 can press the bag body at the outer edge of the liquid outlet hole 212 against the side wall of the first fluid pipeline 110, so as to form a first sealing structure that seals the liquid outlet hole 212, so that the calibration liquid in the calibration liquid bag 200 cannot flow into the first fluid pipeline 110 through the liquid outlet hole 212 (such as Figure 5 When the valve core 300 is disposed in the first fluid conduit 110, after being pressurized in the second preset direction, the sealing ring 320 can be closely fitted with the inner wall of the first fluid conduit 110 and form a second sealing structure that seals the first liquid inlet 112, so that the calibration liquid in the calibration liquid bag 200 cannot flow into the first fluid conduit 110 through the first liquid inlet 112 (as shown in FIG. Figure 7 As shown). In this way, after the spike portion 310 of the valve core 300 pierces the calibration liquid bag 200 of the calibration liquid, so that the calibration liquid bag 200 forms a liquid outlet 212, the valve core 300 can be pressed continuously, so that the sealing ring 320 forms a first sealing structure with the first fluid pipeline 110, or forms a second sealing structure with the first fluid pipeline 110. Then, the sealing ring 320 can be used to seal and block the liquid outlet of the calibration liquid bag 200, so that the on-off control of the calibration liquid can be realized without other tools, and the amount of the calibration liquid flowing into the test cavity 120 can be controlled, so that the calibration analysis of the blood gas biochemistry test card 10 is more accurate.

[0055] Furthermore, in one embodiment, the material of the sealing ring 320 is elastic. In this way, the elastic sealing technology is used to seal the liquid outlet 212 of the calibration liquid bag 200, thereby preventing the calibration liquid bag 200 from being damaged by squeezing, causing the calibration liquid to flow out and affect the test results. The specific material of the sealing ring 320 is selected in the prior art and will not be described in detail here.

[0056] Based on any of the above embodiments, in one embodiment, if Figure 5 and Figure 6 As shown, the calibration liquid bag 200 is provided with a first film body 220 that can be elastically reset, the valve core 300 is fixed on the inner wall of the first film body 220, and the spike portion 310 is arranged toward the matching portion 210; or, in another embodiment, as Figure 7 and Figure 8 As shown, the first fluid conduit 110 is provided with a second film body 114 that can be elastically reset, the valve core 300 is fixed on the inner side wall of the second film body 114, and the spike portion 310 is arranged toward the matching portion 210. In this way, when the pressing force of the calibration liquid bag 200 or the first fluid conduit 110 is cancelled, the valve core 300 will move in the direction away from the liquid outlet 212 of the calibration liquid bag 200 through the elastic reset force of the first film body 220 or the second film body 114, so that the liquid outlet 212 or the first liquid inlet 112 is opened, thereby realizing the automatic connection between the calibration liquid bag and the first fluid conduit. The material of the first film body 220 and the second film body can be made of a composite film with good elastic reset ability. Specifically, the first film body 220 can be composed of PE film (polyethylene film) + aluminum film + PET film (polyethylene terephthalate film); the material of the second film body 114 can be composed of PET film + silicone film.

[0057] Based on any of the above embodiments, Figure 4 As shown, in one embodiment, the valve core 300 is provided with a first end face 302 and a second end face 304 which are arranged opposite to each other, the first end face 302 is provided with a mounting portion 330, and the second end face 304 is provided with a spike portion 310, and the spike portion 310 is arranged opposite to the matching portion 210. In this way, the valve core 300 can be built into the calibration liquid bag 200 (specifically, on the first membrane body 220 mentioned above) through the mounting portion 330, and then integrated into the blood gas biochemistry test card 10; or the valve core 300 is arranged on the first fluid conduit 110 of the blood gas biochemistry test card 10 (specifically, on the second membrane body 114 mentioned above), and the spike portion 310 can be arranged toward the calibration liquid bag. At this time, when calibration is required, the first end surface 302 of the valve core 300 can be pressed by external force so that the spike portion 310 can pierce the calibration liquid bag 200 to form a liquid outlet 212, so that the calibration liquid in the calibration liquid bag 200 can flow into the first fluid conduit 110 of the blood gas biochemistry test card 10.

[0058] Furthermore, in one embodiment, the connecting portion 132 has adhesive properties, so that the valve core 300 can be bonded into the calibration fluid or the fluid pipeline, which facilitates the integration of the valve core 300 .

[0059] like Figure 3 As shown, in one embodiment, the spike portion 310 is in a cone or a polygonal pyramid shape. In this way, when the spike portion 310 pierces the bag body, the matching portion 210 can be regularly split to form a regular liquid outlet, and the damage of the matching portion 210 can be better controlled.

[0060] It should be noted that the materials of the various structures of the valve core 300 can be selected from the existing technology and will not be described in detail here.

[0061] Based on any of the above embodiments, Figure 1 As shown, in one embodiment, the test card body 100 is further provided with a waste liquid storage chamber 140 which is in communication with the liquid outlet of the test chamber 120, and the liquid outlet of the waste liquid storage chamber 140 is in communication with the liquid inlet of the second fluid channel. In this way, the calibration liquid after the calibration analysis can be pushed into or sucked into the waste liquid storage chamber 140, which can prevent the calibration liquid from being exposed and prevent the retention of the calibration liquid from affecting the analysis results of the test liquid. In addition, the test liquid can also be stored to prevent the test liquid from being exposed (especially blood outflow and contamination of the instrument).

[0062] The waste liquid storage chamber 140 may have various specific structures, such as being formed by multiple sections of identical pipes, or being a cavity.

[0063] Based on any of the above embodiments, Figure 1 As shown, in one embodiment, the test card body 100 is further provided with a third fluid conduit 150, the liquid inlet end of the third fluid conduit 150 is used to access the test liquid, and the liquid outlet end of the third fluid conduit 150 is connected to the liquid inlet end of the test cavity 120. In this way, an injector (such as a syringe) can be connected to the liquid inlet end of the third fluid conduit 150, so that the test liquid (such as blood) can be injected into the third fluid conduit 150, and then introduced into the test cavity 120 through the third fluid conduit 150 for testing. The liquid inlet end of the third fluid conduit 150 can form an injection needle structure to facilitate access to the test liquid.

[0064] like Figures 10 to 13 As shown, in another embodiment, a blood gas analyzer is provided, including the above-mentioned blood gas biochemical test card 10, and also including an air suction device 20, a detection device 30, and a controller 60 communicatively connected to the air suction device 20 and the detection device 30, the air suction end of the air suction device 20 is connected to the connecting portion 132 of the second fluid pipeline 130, and the detection end of the detection device 30 is arranged in the test cavity 120.

[0065] When the blood gas analyzer is used, when calibration is required, it is only necessary to press the first fluid pipeline 110 or the calibration liquid bag 200 by external force (manual or electric), so that the spike portion 310 of the valve core 300 can pierce the matching portion 210, so that the calibration liquid 200 is connected to the first fluid pipeline 110 through the first liquid inlet 112; the controller 60 is used to accurately control the action of the suction device 20 to suck an appropriate amount of calibration liquid into the test cavity 120, and then the calibration liquid is analyzed by the detection device 30 to complete the calibration analysis; when the test liquid is subsequently analyzed, the suction device 20 can also be used to suck an appropriate amount of test liquid (such as blood) into the test cavity 120, and then the test liquid is analyzed by the detection device 30 to obtain a test liquid parameter report. When the blood gas analyzer is performing calibration work, it can accurately control the amount of calibration liquid extracted to ensure that the calibration liquid completely covers the detection end of the detection device 30, accurately complete the calibration analysis, obtain accurate calibration parameters, and help improve the accuracy of the test parameters.

[0066] The suction device 20 can be a vacuum pump, a negative pressure suction pump or other equipment capable of providing negative pressure suction. The specific structure of the detection device 30 can be selected from the prior art and will not be described in detail here.

[0067] Based on the above embodiments, Figure 10 to Figure 11 As shown, in one embodiment, the blood gas analyzer further includes a first telescopic device 40 that is communicatively connected to the controller 60, and the telescopic end of the first telescopic device 40 can press against the first fluid pipeline 110 or the calibration liquid bag 200 in a preset direction, so that the spike portion 310 pierces the matching portion 210. In this way, when performing calibration analysis, after the test card 10 is installed, it is only necessary to input the corresponding command to control the first telescopic device 40 to move through the controller 60, drive the telescopic end to press against the first fluid pipeline 110 or the calibration liquid bag 200 in a preset direction, so that the spike portion 310 pierces the matching portion 210, so that the calibration liquid bag 200 is connected to the first fluid pipeline 110 through the first liquid inlet 112, and then accurately control the action of the suction device 20 to suck an appropriate amount of calibration liquid into the test cavity 120, and then use the detection device 30 to analyze the calibration liquid to complete the calibration analysis. The calibration analysis process is simple to operate and highly intelligent, and the operator can complete the calibration analysis without strict training.

[0068] Further, in one embodiment, see Fig.10 , and combined Figures 4 to 8As shown, the telescopic end of the first telescopic device 40 can press the first fluid pipeline 110 or the calibration liquid bag 200 in a preset direction, so that the sealing ring 320 can seal the liquid outlet 212, or the sealing ring 320 can seal the first liquid inlet 112. In this way, after the spike portion 310 of the valve core 300 pierces the calibration liquid bag 200 of the calibration liquid, so that the calibration liquid bag 200 forms the liquid outlet 212, the telescopic end of the first telescopic device 40 can be used to continue pressing the valve core 300, and the sealing ring 320 can press the bag body at the outer edge of the liquid outlet 212 against the side wall of the first fluid pipeline 110, so as to form a first sealing structure that seals the liquid outlet 212, so that the calibration liquid in the calibration liquid bag 200 cannot flow into the first fluid pipeline 110 through the liquid outlet 212 (such as Figure 5 When the valve core 300 is disposed in the first fluid conduit 110, after being pressurized in the second preset direction, the sealing ring 320 can be closely fitted with the inner wall of the first fluid conduit 110 and form a second sealing structure that seals the first liquid inlet 112, so that the calibration liquid in the calibration liquid bag 200 cannot flow into the first fluid conduit 110 through the first liquid inlet 112 (as shown in FIG. Figure 7 As shown). The first telescopic device 40 and the valve core can be used to realize the on-off control of the calibration liquid, so as to control the amount of the calibration liquid flowing into the test cavity 120; when the test liquid is tested, the first telescopic device 40 can be controlled by the controller 60 to close the liquid outlet 212 to prevent the calibration liquid from flowing out and affecting the test accuracy of the test liquid.

[0069] Furthermore, in one embodiment, if Figures 4 to 8 As shown, the valve core 300 is provided with a first end face 302 and a second end face 304 which are arranged opposite to each other, the first end face 302 is provided with a connecting portion 132, and the second end face 304 is provided with a spike portion 310, the spike portion 310 is arranged opposite to the matching portion 210, and the telescopic end of the first telescopic device 40 is arranged in the positive direction of the first end face 302, and can push the spike portion 310 to move toward the matching portion 210. In this way, the telescopic end of the first telescopic device 40 can move along a straight line to achieve puncture and on-off control. Specifically, the first telescopic device 40 can be a hydraulic rod, a pneumatic rod, a linear motor or other telescopic power output mechanism.

[0070] Specifically, combined Figure 5 and Figure 6 As shown, the calibration liquid bag 200 is provided with a first film body 220 that can be elastically reset, the valve core 300 is fixed on the inner wall of the first film body 220, and the spike portion 310 is arranged toward the matching portion 210; or, in another embodiment, as Figure 7 and Figure 8As shown, the first fluid conduit 110 is provided with a second membrane body 114 that can be elastically reset, the valve core 300 is fixedly arranged on the inner side wall of the second membrane body 114, and the spike portion 310 is arranged toward the matching portion 210. In this way, when the telescopic end of the first telescopic device 40 is reset, the valve core 300 will move in a direction away from the liquid outlet 212 of the calibration liquid bag 200 through the elastic reset force of the first membrane body 220 or the second membrane body 114, so that the liquid outlet 212 or the first liquid inlet 112 is opened, thereby realizing automatic communication between the calibration liquid bag and the first fluid conduit.

[0071] Based on any of the above embodiments, in one embodiment, if Fig. 9 and Fig.10 As shown, the third fluid conduit 150 is provided with a third film body 152 that can be elastically reset. The third film body 152 can be pressed to form a third sealing structure that closes the third fluid channel. In this way, when performing a calibration liquid test, the third film body 152 can be pressed (manually or electrically) to form a third sealing structure, and then the third fluid conduit 150 can be closed, so that the test liquid can be prevented from mixing into the calibration liquid and affecting the accuracy of the calibration analysis.

[0072] Furthermore, in one embodiment, the blood gas analyzer further includes a second telescopic device 50 that is communicatively connected to the controller 60, and the telescopic end of the second telescopic device 50 can press the third membrane 152 to form a third sealing structure. The second telescopic device 50 can then be used to implement on-off control of the test liquid, thereby improving the accuracy of the final test parameters. Specifically, the second telescopic device 50 can be a hydraulic rod, a pneumatic rod, a linear motor, or other telescopic power output mechanism.

[0073] Another embodiment further provides a control method for a blood gas analyzer, comprising the following steps:

[0074] Press the first fluid conduit 110 or the calibration liquid bag 200 in a preset direction, so that the spike portion 310 pierces the matching portion 210 and forms a liquid outlet 212;

[0075] Aspirate the calibration liquid in the calibration liquid bag 200 into the test cavity 120 of the blood gas test card 10 to perform calibration analysis;

[0076] After the calibration analysis is completed, the test liquid is sucked or pushed into the test cavity 120 for test analysis.

[0077] Using the control method of the blood gas analyzer, such as Fig.12 As shown, the calibration analysis of the calibration liquid and the test analysis of the test liquid can be automatically realized. The operator only needs to insert the syringe 70 storing the test liquid at the beginning of the test. The operator can leave after the insertion, which saves the operator's operation time and reduces the work intensity. There is no need to worry about the leakage of the test liquid, whether the test liquid is appropriate, etc., which can improve the accuracy of the test parameters.

[0078] Based on the above embodiments, in one embodiment, Fig.12 and Fig.13 As shown, after completing the calibration analysis, it also includes: closing the liquid outlet 212 of the calibration liquid bag 200, and then sucking the test liquid into the test cavity 120 for test analysis. In this way, the suction device 20 can be used to realize the analysis of the calibration liquid and the test liquid, which is conducive to cost saving and makes the blood gas analyzer more miniaturized. In addition, the suction device 20 can accurately control the extraction amount to further improve the test accuracy. Specifically, the suction device 20 is a vacuum pump. By controlling the working steps of the linear stepping motor of the vacuum pump, the extraction amount of the calibration liquid and the test liquid can be accurately controlled to ensure that the calibration liquid and the test liquid completely cover the sensor module.

[0079] Furthermore, compared with the existing technical solutions, the control method can use the suction device 20 to automatically absorb the calibration liquid and the test liquid, which is convenient for controlling the extraction volume and can effectively solve the problems of test liquid leakage, test liquid contact with air, and whether the amount of test liquid extracted is appropriate. At the same time, it can reduce the operator's operating requirements. The operator only needs to insert the syringe, and the test work is automatically completed by the instrument, realizing fool-proof operation.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A blood gas biochemistry test card, characterized in that: include: A test card body, wherein the test card body is provided with a first fluid pipeline, a test cavity communicated with the liquid outlet of the first fluid pipeline, and a second fluid pipeline communicated with the liquid outlet of the test cavity, wherein the first fluid pipeline is provided with a first liquid inlet, and the second fluid pipeline is provided with a connecting portion for connecting to a suction device; A calibration liquid bag, which is fixed on the test card body and has a matching portion that docks with the first liquid inlet; and A valve core, the valve core is arranged in the first fluid pipeline or in the calibration liquid bag, and the valve core is provided with a sharp thorn part for piercing the matching part; Wherein, after the first fluid pipeline or the calibration liquid bag is pressurized in a preset direction, it can drive the spike portion to pierce the matching portion to form a liquid outlet; the calibration liquid bag is provided with a first membrane body that can be elastically reset, the valve core is fixed on the inner side wall of the first membrane body, and the spike portion is arranged toward the matching portion; or the first fluid pipeline is provided with a second membrane body that can be elastically reset, the valve core is fixed on the inner side wall of the second membrane body, and the spike portion is arranged toward the matching portion.

2. The blood gas biochemistry test card according to claim 1, characterized in that: The valve core is provided with a sealing ring arranged around the spike portion; when the valve core is arranged in the calibration liquid bag, after being pressurized in a first preset direction, the sealing ring can seal the liquid outlet; when the valve core is arranged in the first fluid pipeline, after being pressurized in a second preset direction, the sealing ring can seal the first liquid inlet.

3. The blood gas biochemistry test card according to claim 2, characterized in that: The sealing ring is made of elastic material.

4. The blood gas biochemistry test card according to claim 2, characterized in that: The valve core is provided with a first end face and a second end face which are arranged opposite to each other. The first end face is provided with a mounting portion, and the second end face is provided with the spike portion. The spike portion is arranged opposite to the matching portion.

5. The blood gas biochemistry test card according to any one of claims 2 to 4, characterized in that: The test card body is further provided with a waste liquid storage cavity communicated with the liquid outlet of the test cavity, and the liquid outlet of the waste liquid storage cavity is communicated with the liquid inlet of the second fluid conduit.

6. The blood gas biochemistry test card according to claim 5, characterized in that: The test card body is further provided with a third fluid conduit, the liquid inlet end of the third fluid conduit is used to receive the test liquid, and the liquid outlet end of the third fluid conduit is communicated with the liquid inlet end of the test cavity.

7. A blood gas analyzer, characterized in that: It includes the blood gas biochemistry test card as described in claim 6, and also includes an air suction device, a detection device, and a controller communicatively connected to the air suction device and the detection device, the air suction end of the air suction device is connected to the second fluid pipeline through the connecting part, and the detection end of the detection device is arranged in the test cavity.

8. The blood gas analyzer according to claim 7, characterized in that: It also includes a first telescopic device that is communicatively connected to the controller, and the telescopic end of the first telescopic device can press the first fluid pipeline or the calibration liquid bag in the preset direction so that the spike portion pierces the matching portion.

9. The blood gas analyzer according to claim 8, characterized in that: The telescopic end of the first telescopic device can press the first fluid pipeline or the calibration liquid bag in the preset direction, so that the sealing ring can seal the liquid outlet, or the sealing ring can seal the first liquid inlet.

10. The blood gas analyzer according to claim 8, characterized in that: The valve core is provided with a first end face and a second end face which are arranged opposite to each other, the first end face is provided with a connecting portion, the second end face is provided with the spike portion, the spike portion is arranged opposite to the matching portion, the telescopic end of the first telescopic device is arranged in the positive direction of the first end face, and can push the spike portion to move toward the matching portion.

11. The blood gas analyzer according to any one of claims 7 to 10, characterized in that: The third fluid pipeline is provided with a third membrane body that can be elastically reset, and the third membrane body can be compressed to form a third sealing structure that closes the third fluid pipeline.

12. The blood gas analyzer according to claim 11, characterized in that: It also includes a second telescopic device that is communicatively connected to the controller, and the telescopic end of the second telescopic device can press the third film to form the third sealing structure.

13. A control method using the blood gas analyzer according to any one of claims 7 to 12, characterized in that: The steps include: Pressing the first fluid pipeline or the calibration liquid bag in a preset direction so that the thorn portion pierces the matching portion and forms a liquid outlet hole; Aspirating the calibration liquid in the calibration liquid bag into the test cavity of the blood gas test card to perform calibration analysis; After the calibration analysis is completed, the test liquid is sucked or pushed into the test cavity for test analysis.

14. The control method of the blood gas analyzer according to claim 13, characterized in that: After the calibration analysis is completed, the method further includes: closing the liquid outlet of the calibration liquid bag, and then sucking the test liquid into the test cavity to perform test analysis.

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