A portable POCT instrument

Abstract

The present invention provides a portable POCT instrument, including a base, a first bracket, a barcode scanner, a second bracket, a collector, a synchronous belt, a paper inspection table and a motor, the first bracket, the barcode scanner, the second bracket, the paper inspection table and the motor are respectively installed on the base, the bottom end of the paper inspection table is fixedly connected to the base, the motor and the first bracket are located on one side of the paper inspection table, the barcode scanner and the second bracket are located on the other side of the paper inspection table, the first synchronous wheel of the motor forms a transmission structure through the synchronous belt and the second synchronous wheel of the first bracket, the synchronous belt forms a transmission structure through the belt connecting plate of the collector, the first bracket, the barcode scanner, the paper inspection table and the motor are all connected to the collector by signal, the collector is externally connected to the detector and the excitation light source, and the collector signal is connected to the embedded control unit. The portable POCT instrument described in the present invention has relatively stable test results, ensures that the repeatability of each movement of the photoelectric module is high, ensures detection accuracy, and improves service life.

Description

Technical Field

[0001] The invention belongs to the field of diagnostic medical equipment, and in particular relates to a portable POCT instrument. Background Art

[0002] Point-of-care testing (POCT) refers to clinical testing and bedside testing performed next to the patient, usually not necessarily by a clinical laboratory technician. It is a new method that analyzes samples immediately at the sampling site, eliminating the complex processing procedures of the specimens in the laboratory and quickly obtaining test results.

[0003] The POCT Equipment Technology Committee of the China Medical Equipment Association has uniformly named the rapid on-site test based on multiple expert demonstrations, and defines it as: a test method that uses portable analytical instruments and supporting reagents to quickly obtain test results at the sampling site. The meaning of POCT can be understood from two aspects: in terms of space, the test is conducted next to the patient, that is, "bedside testing"; in terms of time, "instant testing" can be performed.

[0004] The basic principles of POCT and its clinical applications;

[0005] (1) The relevant liquid reagents in the traditional method are soaked in the water-absorbing materials of filter paper and various microporous membranes to form an integrated dry reagent block, which is then fixed on a hard matrix to form various forms of diagnostic reagent strips, such as test strips for early pregnancy detection, biochemical markers for diagnosing AMI such as myoglobin (Mb), CK-MB, troponin I (cTnI) and troponin T (cTnT), etc., which are suitable for various samples such as whole blood, serum, plasma, urine, etc.

[0006] (2) Miniaturize traditional analytical instruments and simplify their operation methods to make them portable and palm-sized devices, such as rapid blood glucose meters and blood gas analyzers.

[0007] (3) Integrate the above two into a unified system, such as the urine analyzer commonly used in clinical practice.

[0008] (4) Apply biochips and biosensing technologies to achieve rapid, high-throughput, and accurate detection of the test objects. For example, electrochemical technology (such as micro-ion selective electrodes) and optical biosensors are used to measure glucose, electrolytes, and arterial blood gas. With the application of antibody fixation technology and specific DNA sequences, biosensor probes will soon be used to detect hormones, drugs, bacteria that are difficult to culture, and viruses such as chlamydia, tuberculosis, and human immunodeficiency virus. Lab-On-a-Chip (LOC) is the result of system-integrated microlithography technology and is a microchip that can complete a biochemical analyzer. It can miniaturize the original testing instruments and make them portable.

[0009] The transmission structure used in the current POCT instruments on the market requires a high-power motor to provide power, and requires an adapter or a high-voltage battery. The battery and motor are large in size, resulting in a large volume of the entire structure, which is inconvenient to carry and use. In addition, the general test strip box is made of plastic. The collector and the test strip box will wear out due to contact friction during long-term use, affecting the performance of the instrument and reducing its service life. Summary of the invention

[0010] In view of this, the present invention aims to propose a portable POCT instrument with a compact structure, easy to carry, suitable for most rapid tests and home community environments. The instrument has low power consumption and can be connected to an external rechargeable battery for use when there is no power supply, greatly enhancing the portability of the instrument.

[0011] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0012] A portable POCT instrument comprises a base, a first bracket, a barcode scanner, a second bracket, a collector, a synchronous belt, a paper inspection table and a motor. The first bracket, the barcode scanner, the second bracket, the paper inspection table and the motor are respectively installed on the base. The bottom end of the paper inspection table is fixedly connected to the base. The motor and the first bracket are located on one side of the paper inspection table, and the barcode scanner and the second bracket are located on the other side of the paper inspection table. The first synchronous wheel of the motor forms a transmission structure through the synchronous belt and the second synchronous wheel of the first bracket. The synchronous belt forms a transmission structure through the belt connecting plate of the collector. The first bracket, the barcode scanner, the paper inspection table and the motor are all connected to the collector by signal. The collector is externally connected to a detector and an excitation light source. The collector is signal-connected to an embedded control unit. The embedded control unit is a single-chip microcomputer of the STC series. The embedded control unit signal is connected to a display.

[0013] Furthermore, the first bracket also includes a second central axis, a central axis base, a first bracket body and a belt micro switch. The bottom of the first bracket body is fixedly connected to the base, and the central axis base is arranged at the other end. A belt micro switch is installed on one side of the first bracket body, and a first slide is arranged on the other side. The second central axis is installed on the upper end of the central axis base, and the second synchronous wheel is sleeved on the outer periphery of the second central axis.

[0014] Furthermore, the barcode scanner includes a barcode scanner fixing plate, a first connecting plate, a first reflective plate, a second connecting plate, a second reflective plate and a barcode scanner body. The bottom of the barcode scanner fixing plate is fixedly connected to the base, and the top is fixedly connected to one end of the first reflective plate through the first connecting plate. The other end of the first reflective plate is fixedly connected to the second reflective plate through the second connecting plate. The barcode scanner body is installed on one side of the first connecting plate, and the signal of the barcode scanner body is connected to the collector. The angles between the second connecting plate and the first reflective plate and between the second connecting plate and the second reflective plate are both obtuse angles.

[0015] Furthermore, the second bracket is located on one side of the scanner body, and the second bracket includes a bracket support plate, a first slide rail and a fixed block. One end of the bracket support plate is fixedly connected to the base, a slide rail is set on one side of the bracket support plate, and one side of the collector is slidably connected to the first slide rail through the fixed block.

[0016] Furthermore, the collector includes a collector chassis, a collector fixing plate, a second slide rail, an excitation light source connector, a detector connector, a belt connecting plate and a touch plate. The upper end of the collector chassis is equipped with an excitation light source connector, a detector connector and a belt connecting plate that are independently arranged. The collector fixing plate and the second slide rail are respectively arranged on both sides. The collector chassis signal is connected to the scanner body and the belt microswitch. The collector fixing plate is fixedly connected to the fixed block. The second slide rail is clamped to the first slide rail. The excitation light source connector and the detector connector are arranged in parallel. The excitation light source connector is provided with a laser hole. The excitation light source is installed in the laser hole. The detector connector is provided with a detection hole. The detector is installed in the detection hole. The excitation light source connector and the detector connector are both located on the first side of the belt connecting plate. A touch plate is arranged on the second side of the belt connecting plate. Synchronous belt serrations are evenly distributed on the inner side of the synchronous belt. The belt connecting plate is a hollow square plate. The inner wall of the belt connecting plate is evenly distributed with connecting plate serrations. The synchronous belt serrations and the connecting plate serrations are meshed to form a transmission structure.

[0017] Furthermore, the paper testing table includes a test paper micro switch, a test paper carrier and a paper testing table bracket. The cross-section of the paper testing table bracket is a U-shaped structure. One side of the paper testing table bracket is fixedly connected to the base, and the other side is installed with a test paper micro switch. The test paper micro switch signal is connected to the collector chassis, and the inside of the paper testing table bracket is slidably connected to the test paper carrier.

[0018] Furthermore, the motor also includes a motor body, a first central axis and a motor bracket, one end of the first central axis is fixedly connected to the motor body, and the other end passes through the motor bracket and is fixedly connected to the first synchronous wheel. The cross-section of the motor bracket is a Z-shaped structure, one end of the motor bracket is fixedly connected to the base, and the other end is fixedly connected to the first bracket, and the motor body signal is connected to the collector chassis.

[0019] Compared with the prior art, the portable POCT instrument described in the present invention has the following advantages:

[0020] (1) The portable POCT instrument described in the present invention has relatively stable test results. The stability of the guide rail ensures that the repeatability of each movement of the collector is high, and the entire mechanical structure has no relative movement except for the support of the guide rail and the right guide rail of the collector, so there is no risk of later wear affecting performance.

[0021] (2) The portable POCT instrument described in the present invention has low power consumption. Since the entire structure moves relatively less, the collector only needs to cover the detection area of ​​the test strip, and the friction is small, so a micro stepping reduction motor is used, which requires small power and low energy consumption.

[0022] (3) In the portable POCT instrument described in the present invention, the collector is supported by guide rails on both sides. The relative movement of the collector with the base will not generate contact friction with the paper inspection table, which reduces energy consumption and reduces wear on the paper inspection table, thereby increasing its service life.

[0023] (4) The portable POCT instrument of the present invention has a compact structure and is easy to carry, and can be applied to most rapid tests and home and community environments. Since the power consumption of the instrument is low, the instrument can be connected to an external rechargeable battery and can be used when there is no power supply, which greatly enhances the portability of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a portable POCT instrument according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the first bracket structure according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a barcode scanner according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the second bracket structure according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of a collector according to an embodiment of the present invention;

[0030] Figure 6 is a cross-sectional view of a collector according to an embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of the exploded structure of the paper inspection table according to an embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the exploded structure of the motor according to an embodiment of the present invention;

[0033] Description of reference numerals:

[0034] 1-base; 2-first bracket; 21-second synchronous wheel; 22-second central axis; 23-central axis base; 24-first bracket body; 25-belt micro switch; 26-first slideway; 3-barcode scanner; 31-barcode scanner fixing plate; 32-first connecting plate; 33-first reflecting plate; 34-second connecting plate; 35-second reflecting plate; 36-barcode scanner body; 4-second bracket; 41-bracket support plate; 42-first slideway; 43-fixed block; 5-collector; 51-collector chassis; 52-collector fixing plate; 53-second slide rail; 54-excitation light source connection tube; 55-detector connection tube; 56-belt connection plate; 57-touch plate; 58-laser hole; 59-detection hole; 6-synchronous belt; 7-paper test table; 71-test paper micro switch; 72-test paper carrier; 73-paper test table bracket; 8-motor; 81-first synchronous wheel; 82-first central axis; 83-motor bracket; 84-motor body. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0039] like Figure 1 A portable POCT instrument comprises a base 1, a first bracket 2, a barcode scanner 3, a second bracket 4, a collector 5, a synchronous belt 6, a paper inspection table 7 and a motor 8. The first bracket 2, the barcode scanner 3, the second bracket 4, the paper inspection table 7 and the motor 8 are respectively installed on the base 1. The bottom end of the paper inspection table 7 is fixedly connected to the base 1. The motor 8 and the first bracket 2 are located on one side of the paper inspection table 7, and the barcode scanner 3 and the second bracket 4 are located on the other side of the paper inspection table 7. The first synchronous wheel 81 of the motor 8 forms a transmission structure through the synchronous belt 6 and the second synchronous wheel 21 of the first bracket 2. The synchronous belt 6 forms a transmission structure through the belt connecting plate 56 of the collector 5. The first bracket 2, the barcode scanner 3, the paper inspection table 7 and the motor 8 are all connected to the collector 5 by signal. The collector 5 is externally connected to a detector and an excitation light source. The collector 5 is signal-connected to an embedded control unit. The embedded control unit is a single-chip microcomputer of the STC series. The embedded control unit signal is connected to a display.

[0040] like Figure 2 As shown, the first bracket 2 also includes a second central axis 22, a central axis base 23, a first bracket body 24 and a belt micro switch 25. The bottom of the first bracket body 24 is fixedly connected to the base 1, and the central axis base 23 is set at the other end. The belt micro switch 25 is installed on one side of the first bracket body 24, and the first slide 26 is provided on the other side. The second central axis 22 is installed on the upper end of the central axis base 23, and the second central axis 22 is sleeved on the outer periphery of the second synchronous wheel 21.

[0041] like Figure 3 As shown, the barcode scanner 3 includes a barcode scanner fixing plate 31, a first connecting plate 32, a first reflecting plate 33, a second connecting plate 34, a second reflecting plate 35 and a barcode scanner body 36. The bottom of the barcode scanner fixing plate 31 is fixedly connected to the base 1, and the top is fixedly connected to one end of the first reflecting plate 33 through the first connecting plate 32. The other end of the first reflecting plate 33 is fixedly connected to the second reflecting plate 35 through the second connecting plate 34. The barcode scanner body 36 is installed on one side of the first connecting plate 32. The signal of the barcode scanner body 36 is connected to the collector 5. The angles between the second connecting plate 34 and the first reflecting plate 33 and between the second connecting plate 34 and the second reflecting plate 35 are both obtuse angles.

[0042] like Figure 4 As shown, the second bracket 4 is located on one side of the scanner body 36, and the second bracket 4 includes a bracket support plate 41, a first slide rail 42 and a fixed block 43. One end of the bracket support plate 41 is fixedly connected to the base 1, and a slide rail is set on one side of the bracket support plate 41. One side of the collector 5 is slidably connected to the first slide rail 42 through the fixed block 43.

[0043] like Figure 5-6As shown, the collector 5 includes a collector chassis 51, a collector fixing plate 52, a second slide rail 53, an excitation light source connection tube 54, a detector connection tube 55, a belt connection plate 56 and a touch plate 57. The upper end of the collector chassis 51 is installed with an excitation light source connection tube 54, a detector connection tube 55 and a belt connection plate 56 which are independently arranged. The collector fixing plate 52 and the second slide rail 53 are respectively arranged on both sides. The signal of the collector chassis 51 is connected to the code scanner body 36 and the belt micro switch 25. The collector fixing plate 52 is fixedly connected to the fixing block 43. The second slide rail 53 is clamped to the first slide rail 26. The excitation light source connection tube 54 and the detector connection tube 55 are arranged in parallel. A laser hole 58 is provided, in which an excitation light source is installed; a detector sleeve 55 is provided with a detection hole 59, in which a detector is installed; both the excitation light source sleeve 54 and the detector sleeve 55 are located on a first side of a belt connecting plate 56; a touch plate 57 is provided on a second side of the belt connecting plate 56; synchronous belt serrations are evenly distributed on the inner side of the synchronous belt 6; the belt connecting plate 56 is a hollow square plate; the inner wall of the belt connecting plate 56 is evenly distributed with connecting plate serrations; the synchronous belt serrations and the connecting plate serrations are meshed to form a transmission structure; the first synchronous wheel 81 and the second synchronous wheel 21 form a movement path of the synchronous belt 6; at the same time, the first synchronous wheel 81 drives the synchronous belt 6 to move left and right, and the synchronous belt 6 drives the collector 5 to move left and right.

[0044] The barcode scanner model is N-L20, a machine that reads barcode information. It uses an infrared light source, then uses a chip to decode based on the reflection result, and finally returns the correct characters represented by the barcode to read the information of the test items on the test paper.

[0045] The detector is a photodiode array detector of the prior art. The complex light passes through the sample cell and is selectively absorbed by the components before entering the monochromator and irradiating onto the diode array device, so that the light intensity of each nanometer wavelength is converted into the corresponding electrical signal intensity, that is, the absorption spectrum of the component is obtained, thereby obtaining the structural information of the specific component and determining the structure of the unknown component or the complex component.

[0046] The excitation light source is a 1064 nm laser diode.

[0047] like Figure 7 As shown, the paper testing table 7 includes a test paper micro switch 71, a test paper carrier 72 and a paper testing table bracket 73. The cross section of the paper testing table bracket 73 is a U-shaped structure. One side of the paper testing table bracket 73 is fixedly connected to the base 1, and the test paper micro switch 71 is installed on the other side. The signal of the test paper micro switch 71 is connected to the collector base 51, and the inside of the paper testing table bracket 73 is slidably connected to the test paper carrier 72.

[0048] The model of belt micro switch 25 and test paper micro switch 71 are both K9-1267T, with small contact spacing and snap-action mechanism, contact mechanism that performs switching action with specified stroke and specified force, covered with a shell, and a switch with a driving rod on the outside. Because the contact spacing of the switch is relatively small, it is called a micro switch, also called a sensitive switch.

[0049] The model of the motor body 84 is PKP244U12A2, a high-torque 2-phase stepper motor with a standard type of 200 divisions per revolution. The number of teeth of the rotor is set to 100, which is twice the standard type of 50 small teeth. Therefore, the basic step angle becomes half of the standard type, 0.9°. Due to the fast torque starting and the small influence of friction load, the stopping accuracy is greatly improved.

[0050] The working process of a portable POCT instrument:

[0051] The staff first fixes the detector and the excitation light source to the detector socket 55 and the excitation light source socket 54 respectively, and connects the power supply externally. Then, the test paper carrier 72 is pulled out, the test paper strip to be tested is placed on the test paper carrier 72, and the test paper carrier 72 is reset to the paper test stand bracket 73. Since the top of the reset test paper carrier 72 touches the test paper micro switch 71, the test paper micro switch 71 transmits the touch signal line to the collector chassis 51, and the collector chassis 51 transmits the touch signal to the scanner body 36, the motor body 84, the excitation light source and the detector. The scanner body 36 reads the test paper strip signal reflected by the first reflector 33 and the second reflector 35. After the information is recorded into the detector through the signal line, the motor body 84 rotates, and the mechanical conduction of the first synchronous wheel 81, the second synchronous wheel 21, the synchronous belt 6 and the belt connecting plate 56 drives the collector 5 to slide along the first slide 26 and the first slide rail 42. During the sliding process, the light emitted by the excitation light source is recorded into the surface of the test strip through the laser hole 58, and the reflection information of the test strip is recorded into the detector through the detection hole 59. The detector feeds back the recorded result to the display. After the forward rotation stroke of the motor body 84 is completed, the motor body 84 changes to reverse rotation, driving the collector 5 to return to the starting point, and the touch panel 57 on the collector 5 touches the belt micro switch 25 to complete the detection work, and the whole workflow ends.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable POCT instrument, characterized in that: The invention comprises a base (1), a first bracket (2), a code scanner (3), a second bracket (4), a collector (5), a synchronous belt (6), a paper inspection table (7) and a motor (8); the first bracket (2), the code scanner (3), the second bracket (4), the paper inspection table (7) and the motor (8) are respectively installed on the base (1); the bottom end of the paper inspection table (7) is fixedly connected to the base (1); the motor (8) and the first bracket (2) are located on one side of the paper inspection table (7); the code scanner (3) and the second bracket (4) are located on the other side of the paper inspection table (7); On one side, the first synchronous wheel (81) of the motor (8) forms a transmission structure through a synchronous belt (6) and a second synchronous wheel (21) of the first bracket (2), the synchronous belt (6) forms a transmission structure through a belt connecting plate (56) of the collector (5), the first bracket (2), the barcode scanner (3), the paper inspection table (7) and the motor (8) are all connected to the collector (5) by signal, the collector (5) is externally connected to a detector and an excitation light source, the collector (5) is connected to an embedded control unit by signal, and the embedded control unit is connected to a display by signal; The first bracket (2) further comprises a second central axis (22), a central axis base (23), a first bracket body (24) and a belt micro switch (25); the bottom of the first bracket body (24) is fixedly connected to the base (1), and the central axis base (23) is arranged at the other end; the belt micro switch (25) is installed on one side of the first bracket body (24), and a first slideway (26) is arranged on the other side; the second central axis (22) is installed on the upper end of the central axis base (23), and the outer periphery of the second central axis (22) is sleeved with a second synchronous wheel (21); The second bracket (4) is located on one side of the barcode scanner body (36), and the second bracket (4) comprises a bracket support plate (41), a first slide rail (42) and a fixing block (43); one end of the bracket support plate (41) is fixedly connected to the base (1), a slide rail is arranged on one side of the bracket support plate (41), and one side of the collector (5) is slidably connected to the first slide rail (42) through the fixing block (43); The collector (5) comprises a collector base frame (51), a collector fixing plate (52), a second slide rail (53), an excitation light source connection tube (54), a detector connection tube (55), a belt connection plate (56) and a touch plate (57). The upper end of the collector base frame (51) is equipped with an excitation light source connection tube (54), a detector connection tube (55) and a belt connection plate (56) which are independently arranged from each other. The collector fixing plate (52) and the second slide rail (53) are respectively arranged on both sides. The collector base frame (51) is signal-connected to the code scanner body (36) and the belt micro switch (25). The collector fixing plate (52) is fixedly connected to the fixing block (43). The second slide rail (53) is snap-connected to the first The slideway (26), the excitation light source connecting tube (54) and the detector connecting tube (55) are arranged in parallel, the excitation light source connecting tube (54) is provided with a laser hole (58), the excitation light source is installed in the laser hole (58), the detector connecting tube (55) is provided with a detection hole (59), the detector is installed in the detection hole (59), the excitation light source connecting tube (54) and the detector connecting tube (55) are both located on the first side of the belt connecting plate (56), the second side of the belt connecting plate (56) is provided with a touch plate (57), the inner side of the synchronous belt (6) is evenly distributed with synchronous belt teeth, the belt connecting plate (56) is a hollow square plate, the inner wall of the belt connecting plate (56) is evenly distributed with connecting plate teeth, the synchronous belt teeth and the connecting plate teeth are meshed, and a transmission structure is formed; The excitation light source is a 1064 nm laser diode.

2. A portable POCT instrument according to claim 1, characterized in that: The barcode scanner (3) comprises a barcode scanner fixing plate (31), a first connecting plate (32), a first reflecting plate (33), a second connecting plate (34), a second reflecting plate (35) and a barcode scanner body (36); the bottom of the barcode scanner fixing plate (31) is fixedly connected to the base (1); the top is fixedly connected to one end of the first reflecting plate (33) through the first connecting plate (32); the other end of the first reflecting plate (33) is fixedly connected to the second reflecting plate (35) through the second connecting plate (34); the barcode scanner body (36) is installed on one side of the first connecting plate (32); the signal of the barcode scanner body (36) is connected to the collector (5); and the angles between the second connecting plate (34) and the first reflecting plate (33) and between the second connecting plate (34) and the second reflecting plate (35) are both obtuse angles.

3. A portable POCT instrument according to claim 1, characterized in that: The paper testing platform (7) comprises a test paper micro switch (71), a test paper carrier (72) and a paper testing platform bracket (73); the cross section of the paper testing platform bracket (73) is a U-shaped structure; one side of the paper testing platform bracket (73) is fixedly connected to the base (1); the other side is provided with the test paper micro switch (71); the signal of the test paper micro switch (71) is connected to the collector bottom frame (51); the inside of the paper testing platform bracket (73) is slidably connected to the test paper carrier (72).

4. A portable POCT instrument according to claim 1, characterized in that: The motor (8) further comprises a motor body (84), a first central axis (82) and a motor bracket (83); one end of the first central axis (82) is fixedly connected to the motor body (84), and the other end passes through the motor bracket (83) and is fixedly connected to the first synchronous wheel (81); the cross section of the motor bracket (83) is a Z-shaped structure; one end of the motor bracket (83) is fixedly connected to the base (1), and the other end is fixedly connected to the first bracket (2); the motor body (84) is signal-connected to the collector base frame (51).

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