A card-type Helicobacter pylori detector

Abstract

The present invention relates to the technical field of medical detection equipment, and specifically discloses a card-type Helicobacter pylori detector with low failure rate and automatic sample input and output, comprising a shell, a detection unit accommodated in the shell, and a main control board, wherein the detection unit comprises a material tray with a plurality of card holes opened on the circumference, and a sample injection control component for blocking or penetrating the card holes is arranged below the material tray; a driving mechanism for driving the material tray to rotate to control the sample placement position on the material tray; a measuring device located below the sample injection control component and receiving and detecting the sample in the gas collecting card, a barcode scanner is arranged in the measuring device, and a sample placement port and a sample placement control component for opening and closing the sample placement port are arranged at the bottom of the measuring device; a conveying mechanism located below the measuring device for conveying the gas collecting card; the main control board is used to receive instructions sent by a touch display screen to control the operation of the sample injection control component, the driving mechanism and the conveying mechanism, receive barcode information sent by the barcode scanner and detection information sent by the measuring device, and analyze and calculate the detection information to output test results.

Description

Technical Field

[0001] The invention relates to the technical field of medical detection instruments, and in particular to a card-type Helicobacter pylori detector with low failure rate and capable of automatically inputting and outputting samples. Background Art

[0002] The Helicobacter pylori card detector is a device that detects the gas collection card with the marked sample to be tested to determine whether Helicobacter pylori exists in the sample to be tested, and provides a basis for medical personnel to diagnose gastric diseases. The Helicobacter pylori card detector includes an automatic sampling mechanism and a measuring device. The gas collection card is sent from the rectangular storage slot to the measuring device in sequence through the automatic sampling device for testing to obtain the final test result. The automatic sampling device of the traditional Helicobacter pylori card detector has a complex structure, is prone to errors during use, has a high failure rate, and increases the cost of using the equipment; furthermore, the traditional Helicobacter pylori card detector cannot automatically return the sample after the sample measurement is completed, and the sample recovery bin needs to be manually cleaned. The degree of automation is not high, resulting in low efficiency of gas collection card detection. Summary of the invention

[0003] Based on this, it is necessary to provide a card-type Helicobacter pylori detector with a low failure rate and automatic sample input and output to address the technical problems of complex sample injection device structure, high failure rate, manual sample cleaning and insufficient detection efficiency.

[0004] A card-type Helicobacter pylori detector, the detector comprising:

[0005] A shell, wherein a sample inlet is provided on the top of the shell, and an openable upper cover is provided at the sample inlet, a touch screen for receiving external action commands is provided on the main surface of the shell, and a sample outlet is provided on the side panel of the shell near the bottom of the shell;

[0006] A detection unit, the detection unit is accommodated in the inner cavity of the shell, and the detection unit includes:

[0007] A material tray, wherein a plurality of card holes for accommodating gas collecting cards are provided on the circumference of the material tray, and a sample injection control member for blocking or penetrating the card holes is provided below the material tray;

[0008] A driving mechanism, used for driving the material tray to rotate so as to control the placement position on the material tray;

[0009] A measuring device, the measuring device is located below the sample injection control component, and is used to receive the gas collecting card released by any card hole and detect the sample in the gas collecting card. The measuring device is provided with a barcode scanner for scanning and reading the barcode information of the gas collecting card, and a sample placing port and a sample placing control component for controlling the opening and closing of the sample placing port are provided at the bottom of the measuring device;

[0010] A conveying mechanism, the conveying mechanism is located below the measuring device, and the output end of the conveying mechanism is adjacent to the sample outlet, and is used to receive the gas collecting card after the test and send the gas collecting card to the outside of the housing through the sample outlet; and

[0011] The signal processing unit includes a main control board, which is used to receive action instructions sent by the touch display screen to control the operation of the sample injection control component, the drive mechanism and the transmission mechanism, and receive the barcode information sent by the scanner and the detection information sent by the measuring device, and analyze and calculate the detection information to output the test results.

[0012] In one embodiment, the injection control component includes a tray for supporting the material tray, a plurality of limit pins slidably arranged at the bottom of the tray and arranged along the circumferential direction of the tray, a ferromagnetic component is provided at the end of the limit pin, and a first electromagnet is adjacent to the injection end of the measuring device and used to control the movement of the limit pin, a plurality of through holes are opened on the tray and are connected to each of the card holes in a one-to-one correspondence, and a limit pin is correspondingly arranged below each through hole; when the limit pin is adjacent to the first electromagnet and the first electromagnet is energized, the limit pin is attracted by the first electromagnet away from the center of the tray to release the gas collecting card, and when the first electromagnet loses power or the limit pin leaves the first electromagnet, the limit pin resets and rebounds to seal the card hole.

[0013] In one of the embodiments, a plurality of fixing members corresponding to the through holes and used for mounting the limit pins are provided at the bottom of the tray, and a guide groove for limiting the movement path of the limit pins is provided on the fixing members.

[0014] In one of the embodiments, an annular groove is provided on the limit pin near the end of the limit pin, and the bottom of the annular groove is made of ferromagnetic material. The first electromagnet is provided with a hook extending along the depth direction of the annular groove at one end near the limit pin, which is used to cooperate with the inner wall of the annular groove to hook the limit pin.

[0015] In one of the embodiments, a return spring for providing a return resilience force to the limit pin is provided in the guide groove, or the limit pin is an elastic member connected to the inner wall of the guide groove.

[0016] In one of the embodiments, the card hole includes a vertical portion for defining a position of the air collecting card and a horizontal portion for providing an air flow channel.

[0017] In one embodiment, the measuring device includes a measuring chamber provided with a gas collecting card, a Geiger-Muller counter tube for sensing decay rays of markers in the gas collecting card is arranged inside the measuring chamber, and a lead screen block is coated on the outside of the measuring chamber for shielding rays.

[0018] In one embodiment, the sample lofting control component includes a baffle elastically connected to the lead screen block and used to block the sample lofting port, and a second electromagnet located outside the lead screen block, the second electromagnet is used to be energized and attract the baffle under the control of the main control board to open the sample lofting port, and an opening is provided on the lead screen block to provide a connection channel between the second electromagnet and the baffle.

[0019] In one of the embodiments, a connection interface is provided on the back of the shell, and the connection interface is electrically connected to the main control board and is used to plug in an external data connection line.

[0020] In one embodiment, the detector further includes a printing mechanism housed in a shell, the shell is provided with a paper outlet connected to an output end of the printing mechanism, and the printing mechanism receives the test results sent by the main control board and prints them.

[0021] The card-type Helicobacter pylori detector of the present invention has a conveying mechanism disposed below the measuring device to transport the gas collection card after measurement, without the need for manual operation, and a barcode scanner is disposed inside the measuring device to replace manual barcode recording and automatically identify the barcode information, thereby improving the sample detection efficiency; and the sampling and transportation structure of the gas collection card is simple and reliable, and the gas collection card is not prone to clogging problems, thereby reducing the failure rate of the detector, thereby reducing the maintenance and use costs of the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a card-type Helicobacter pylori detector in one embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the card-type Helicobacter pylori detector in the embodiment shown when the upper cover is opened;

[0024] Figure 3 It is a structural schematic diagram of a card-type Helicobacter pylori detector from another perspective in one embodiment of the present invention;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of the card-type Helicobacter pylori detector in the embodiment shown when the rear cover is opened;

[0026] Figure 5 It is a schematic diagram of the structure of a detection unit in one embodiment of the present invention;

[0027] Figure 6 for Figure 5 A schematic diagram of a partially enlarged structure of part A in the illustrated embodiment;

[0028] Figure 7 for Figure 5A schematic diagram of a partially enlarged structure of part B in the illustrated embodiment;

[0029] Figure 8 for Figure 5 A schematic diagram of the partial enlarged structure of part C in the illustrated embodiment. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] See also Figure 1 and Figure 3 The present invention discloses a card-type Helicobacter pylori detector 10 with low failure rate and automatic sample input and output. The detector is used to detect the gas collection card of the breath test, specifically by detecting the marked 13 C decay rays are used to detect 13 C content, and then evaluate the level of Helicobacter pylori in the stomach of the person being tested, which is convenient for medical staff to diagnose the patient's condition. Figure 2 and Figure 4 The detector includes a shell 100, a detection unit 200 and a signal processing unit accommodated in the inner cavity of the shell 100. The shell 100 is used to encapsulate the detection unit 200 and the signal processing unit to protect the various components and improve the integration of the equipment. An injection port 110 is provided at the top of the shell 100, and an openable and closable upper cover 120 is provided at the injection port 110. The upper cover 120 is hinged or slidably connected to the top of the shell 100. Of course, the upper cover 120 can also be detachably connected to the top of the shell 100. When the upper cover 120 is detachably connected to the top of the shell 100, a limiting slot is provided on the edge of the injection port 110 for limiting the installation position of the upper cover 120, and a fastener for locking the upper cover 120 is provided at the top of the shell 100 to ensure the sealing of the shell 100 when the upper cover 120 is closed. A touch display screen 130 for receiving external action commands is provided on the main surface of the shell 100, and a sample outlet 140 is opened on the side panel of the shell 100 near the bottom of the shell 100. A bayonet cover 150 is provided at the sample outlet 140 to block the sample outlet 140 when the detector is not in use, so as to prevent debris from entering the inner cavity of the shell 100 through the sample outlet 140.

[0032] The edge of the sample outlet 140 is recessed toward the inner cavity of the housing 100, forming a groove into which the fingers or external tools of medical personnel or maintenance personnel can be inserted, so as to facilitate the medical personnel or maintenance personnel to detent the bayonet cover plate 150 and drive the bayonet cover plate 150 to move. Furthermore, in one embodiment, a concave position is provided on the side of the bayonet cover plate 150 facing away from the inner cavity of the housing 100, so as to provide a gripping portion for the medical personnel or maintenance personnel, so as to reduce the difficulty of opening and closing the bayonet cover plate 150. It should be noted that, in the present embodiment, the shell 100 is of an irregular shape. Specifically, there is an inclined panel between the top of the shell 100 and the side of the shell 100 facing the user. The side where the inclined panel is located is agreed to be the main side of the shell 100. There is a smooth transition between the upper cover 120 and the inclined panel, and the touch display screen 130 is installed on the inclined panel. In this way, under the premise that the overall height of the shell 100 remains unchanged, not only the horizontal height of the touch display screen 130 is raised, but also the elevation angle of the touch display screen 130 is adjusted, so that medical staff or maintenance personnel can clearly see the display content on the touch display screen 130.

[0033] The back cover 160 of the shell 100, that is, the side of the shell 100 facing away from the person when the detector is in use, is provided with a plurality of heat dissipation holes for dissipating the heat generated by the detection unit 200 during operation. A switch 170 electrically connected to the signal processing unit is provided at the bottom of the back cover 160 for starting and stopping the detector under the action of an external force.

[0034] The detection unit 200 is used to store the gas collection card to be detected. After the sample in the gas collection card is detected, the gas collection card is automatically sent out of the housing 100, thereby realizing the full-automatic detection of the gas collection card. Figure 5 The detection unit 200 includes a tray 210 for receiving the gas collecting card, a driving mechanism 220 for driving the tray 210 to rotate to control the placement position on the tray 210, and a device for measuring the gas collected in the gas collecting card. 13 The material tray 210 is provided with a measuring device 230 for marking samples with C marks and a conveying mechanism 240 for receiving and transporting the gas collecting card after detection out of the housing 100. A plurality of card holes 211 for accommodating the gas collecting card are provided on the circumference of the material tray 210, and a sampling control member 250 for blocking or penetrating the card holes 211 is provided below the material tray 210. Preferably, the distance between each two adjacent card holes 211 is equal, that is, the plurality of card holes 211 are evenly distributed on the circumference of the material tray 210. In this way, the material tray 210 can load a large number of gas collecting cards at a time, reducing the number of times the upper cover 120 is opened and the number of times the gas collecting cards are set, thereby improving the detection efficiency. Moreover, by adjusting the movement cycle of the driving mechanism 220, it can be ensured that each time the driving mechanism 220 moves, the card holes 211 are aligned with the sampling end of the measuring device 230, so that the gas collecting card can smoothly fall into the measuring device 230.

[0035] See also Figure 6In one embodiment, the card hole 211 includes a vertical portion 211a for limiting the position of the gas collecting card and a horizontal portion 211b for providing an air flow channel, and the vertical portion 211a is connected to the horizontal portion 211b. In this way, when medical staff inserts the gas collecting card into the tray 210, the gas in the card hole 211 can be discharged through the horizontal portion 211b, thereby reducing the resistance of the air column in the card hole 211 to the gas collecting card, while limiting and guiding the gas collecting card, reducing the difficulty of setting the gas collecting card. Furthermore, the upper edge of the card hole 211 is provided with a smooth arc-shaped guide groove 211c connected to the inside of the card hole 211, and the smooth arc-shaped guide groove 211c is used to expand the guiding range of the upper edge of the card hole 211. In this way, during the insertion process of the air collecting card, there is no need to completely align the air collecting card with the card hole 211. When the air collecting card contacts the inner wall of the smooth arc-shaped guide groove 211c, the inner wall of the smooth arc-shaped guide groove 211c has less friction force on the air collecting card. In this way, the air collecting card will slide into the card hole 211 along the smooth arc-shaped guide groove 211c, thereby further reducing the difficulty of inserting the air collecting card.

[0036] The sample injection control member 250 controls the sample injection of the measuring device 230 by controlling the opening and closing of the card hole 211. Figure 7 and Figure 8 In one embodiment, the injection control component 250 includes a tray 251 for supporting the material tray 210, a plurality of limit pins 252 slidably arranged at the bottom of the tray 251 and arranged along the circumferential direction of the tray 251, and a first electromagnet 253 adjacent to the injection end of the measuring device 230 and used to control the movement of the limit pin 252. The tray 251 is provided with a plurality of through holes 254 corresponding to each of the card holes 211, and a limit pin 252 is correspondingly arranged below each through hole 254, and a ferromagnetic part is arranged at the end of the limit pin 252; when the limit pin 252 is adjacent to the first electromagnet 253 and the first electromagnet 253 is energized, the limit pin 252 is attracted by the first electromagnet 253 away from the center of the tray 251 to release the gas collecting card, and when the first electromagnet 253 loses power or the limit pin 252 leaves the first electromagnet 253, the limit pin 252 resets and rebounds to block the card hole 211. In this embodiment, the material tray 210 and the tray 251 are fixedly connected as a whole, and the driving end of the driving mechanism 220 is fixedly connected to the bottom center of the tray 251 to drive the material tray 210 and the tray 251 to rotate relative to the injection control member 250. Preferably, a plurality of legs 255 are also provided between the material tray 210 and the tray 251 to extend the distance between the material tray 210 and the tray 251, thereby expanding the insertion space of the gas collection card, so that the center of gravity of the gas collection card falls into the insertion space, and the gas collection card is prevented from shaking and then leaving the card hole 211 when the detector is impacted by external force, so as to ensure the reliability of the detection operation.

[0037] In one embodiment, the driving mechanism 220 is a stepper motor fixed on the bottom plate of the housing 100. During the operation of the detector, when the gas collecting card is inserted into the material tray 210 and the switch 170 of the detector is started, the stepper motor is powered under the control of the signal processing unit, and the driving end of the stepper motor rotates at a predetermined action cycle. By adjusting the working parameters and initial position of the stepper motor, it is ensured that every time the stepper motor rotates, a limit pin 252 at the bottom of the tray 251 is aligned with the first electromagnet 253. In this case, the first electromagnet 253 is powered and generates magnetism under the control of the signal processing unit to attract the ferromagnetic part on the limit pin 252. In this way, the ferromagnetic part drives the limit pin 252 to slide relative to the bottom of the tray 251 under the attraction of the first electromagnet 253, thereby releasing the constraint on the gas collecting card. In this way, the gas collecting card will fall into the sample inlet end of the measuring device 230 under the action of gravity, so that the measuring device 230 can detect the sample in the gas collecting card.

[0038] For further information, see Figure 8 , an annular groove 252a is provided on the stop pin 252 at a position near the end of the stop pin 252, the bottom of the annular groove 252a is made of ferromagnetic material, and a hook 253a extending along the depth direction of the annular groove 252a is provided on the first electromagnet 253 at one end near the stop pin 252, which is used to cooperate with the inner wall of the annular groove 252a to hook the stop pin 252. In this way, when the first electromagnet 253 is energized to generate a magnetic field, the ferromagnetic material at the end of the stop pin 252 is attracted by the first electromagnet 253 and will be attracted by the hook 253a. At the same time, the hook 253a also abuts against the inner wall of the annular groove 252a to limit the relative position relationship between the first electromagnet 253 and the stop pin 252, so as to prevent the stop pin 252 from sliding off the first electromagnet 253 when the magnetic field of the first electromagnet 253 is unstable, so as to further improve the reliability of the detection operation.

[0039] In one embodiment, the bottom of the tray 251 is provided with a plurality of fixing members 256 corresponding to each through hole 254 and used to install the limit pin 252. The fixing member 256 is provided with a guide groove 257 for limiting the movement path of the limit pin 252 to prevent the limit pin 252 from shaking when it moves under the attraction of the first electromagnet 253, causing the through hole 254 to fail to be penetrated, so as to ensure the effective release of the gas collector. Furthermore, a return spring for providing the limit pin 252 with a return resilience is provided in the guide groove 257, or the limit pin 252 is an elastic member connected to the inner wall of the guide groove 257. In this way, when the first electromagnet 253 loses power or the driving mechanism 220 drives the tray 251 to rotate so that the limit pin 252 at the predetermined position leaves the first electromagnet 253, the limit pin 252 returns to its original position and rebounds under the action of the elastic force, that is, the limit pin 252 retracts into the guide groove 257 of the fixing part 256, thereby continuing to block the through hole 254 and the card hole 211, so as to receive a new gas collection card to be tested in subsequent operations.

[0040] The measuring device 230 is used to provide a detection space and detection equipment for the gas collection card, and to provide raw data for the analysis and processing operation of the signal processing unit by obtaining the radiation data of the sample marked on the gas collection card. The measuring device 230 is located below the sample injection control part 250, and is used to receive the gas collection card released by any card hole 211, and detect the sample in the gas collection card. The measuring device 230 is provided with a scanner 231 for scanning and reading the barcode information of the gas collection card, and the bottom of the measuring device 230 is provided with a sample placement port 232 and a sample placement control part 233 for controlling the opening and closing of the sample placement port 232. In one embodiment, the measuring device 230 includes a measuring chamber provided with a gas collection card position 234, and the gas collection card position 234 is used to receive the gas collection card released from the bottom of the tray 251 and uniquely define the position of the gas collection card. A through slot 235 vertically connected to the gas collection card position 234 is provided in the measuring chamber, which is used to set the scanner 231 and provide a channel for the scanner 231 to scan the barcode of the gas collection card. The two inner side surfaces of the gas collecting card position 234 along the scanning direction of the scanner 231 are respectively sloped surfaces, that is, the bottom of the gas collecting card position 234 is expanded toward the top. In this way, on the one hand, the falling range of the gas collecting card position 234 is expanded, and the sloped surface of the gas collecting card position 234 forms a guide position for the gas collecting card. On the other hand, when the gas collecting card falls into the gas collecting card position 234, the gas collecting card will be subjected to a certain impact when contacting the gas collecting card position 234, and then swinging will occur. In the process of the swinging gas collecting card contacting and colliding with the sloped surface, the kinetic energy of the gas collecting card is converted into the internal energy of the sloped surface, which helps the gas collecting card to stop quickly, so as to facilitate the scanning of the scanner 231 and the radiation detection operation. The measuring chamber is provided with a Geiger-Muller counter 236 for sensing decay radiation of the marker in the gas collecting card. Specifically, when the gas collecting card falls into the gas collecting card position 234, the marker in the gas collecting card decays and generates radiation. The Geiger-Muller counter 236 detects the radiation and outputs electrical signals with different pulse numbers according to the intensity of the radiation, so as to facilitate the subsequent evaluation based on the electrical signals. 13 The outside of the measuring room is covered with a lead screen block 237 to shield the radiation and avoid the impact on the environment when the radiation passes through.

[0041] In one embodiment, the sample-laying control member 233 includes a baffle 233a elastically connected to the lead screen block 237 and used to block the sample-laying port 232, and a second electromagnet 233b located outside the lead screen block 237. The second electromagnet 233b is used to be energized and attract the baffle 233a under the control of the main control board 300 to open the sample-laying port 232, so that the gas collection card after detection falls into the conveying mechanism 240 for transportation. The lead screen block 237 is provided with an opening for providing a connection channel between the second electromagnet 233b and the baffle 233a. Preferably, the baffle 233a is made of plastic material, and a ferromagnetic block that can be attracted by the second electromagnet 233b is provided on one side of the baffle 233a adjacent to the second electromagnet 233b.

[0042] The conveying mechanism 240 is located below the measuring device 230, and the output end of the conveying mechanism 240 is adjacent to the sample outlet 140, and is used to receive the gas collection card after detection and send the gas collection card to the outside of the housing 100 through the sample outlet 140. Preferably, the conveying mechanism 240 includes a gear conveyor belt 241 and a DC motor 242 that drives the gear conveyor belt 241 to rotate. By setting the gear conveyor belt 241, slippage during the movement of the conveyor belt is avoided, and the movement speed of the conveyor belt is determined solely by the power of the DC motor 242. The sample output rate of the detector can be accurately controlled by controlling the working parameters of the DC motor 242. In this way, while ensuring that the transmission speed of the conveyor belt is compatible with the detection speed of the measuring device 230, the high labor consumption problem caused by the express rotation of the conveyor belt is reduced. The signal processing unit includes a main control board 300, which can be an MCU processor or an integrated circuit composed of multiple electrical components and having a data processing function. The main control board 300 is used to receive action instructions sent by the touch display screen 130 to control the operation of the injection control component 250, the drive mechanism 220 and the transmission mechanism 240, and receive the barcode information sent by the scanner 231 and the detection information sent by the measuring device 230, and analyze and calculate the detection information to output the test results.

[0043] When the gas collecting card falls into the gas collecting card position 234, the barcode scanner 231 scans the barcode information on the side of the gas collecting card and sends the barcode information to the main control board 300 for recording. At the same time, the main control board 300 controls the Geiger-Muller counter 236 to work and receives the representation sent by the Geiger-Muller counter 236. 13 C decay ray intensity, and then, the main control board 300 converts the pulsed electrical signal into a corresponding Helicobacter pylori level value according to the preset calculation model therein, and sends the Helicobacter pylori level value to the information set containing the barcode information of the gas collection card, so as to obtain the test result. In one embodiment, a connection interface 180 is provided on the back of the housing 100, and the connection interface 180 is electrically connected to the main control board 300 and is used to plug in an external data connection line. Specifically, the connection interface 180 is provided on the back cover 160 of the housing 100, and the connection interface 180 can be a USB interface or a Type-C interface, so that the data information on the main control board 300 can be transmitted to an external electronic device via a data connection line, such as copying to a computer or a mobile phone or a hard disk for backup and archiving. Of course, the main control board 300 can also be electrically connected to other information processing devices via a data connection line to realize secondary processing or analysis of the data, so as to facilitate medical personnel and medical system personnel to grasp the morbidity and other information.

[0044] In one embodiment, the detector also includes a printing mechanism 400 housed in the housing 100. The housing 100 is provided with a paper outlet connected to the output end of the printing mechanism 400. The printing mechanism 400 receives the test results sent by the main control board 300 and prints them. Specifically, the printing mechanism 400 receives information including the standard result format, the gas collection card barcode information, the Helicobacter pylori level value corresponding to the gas collection card sample, and the reference value sent by the main control board 300, and prints the above information on paper to provide inspection credentials for the person being tested and provide a basis for diagnosis for medical personnel. Furthermore, in one embodiment, the housing 100 also contains a switching power supply 500 electrically connected to the main control board 300 for powering the detector.

[0045] The card-type Helicobacter pylori detector 10 of the present invention is provided with a conveying mechanism 240 below the measuring device 230 to transport the gas collection card after measurement, without manual operation, and a barcode scanner 231 is provided in the measuring device 230 to replace manual barcode recording and automatically identify the barcode information, thereby improving the sample detection efficiency; and the sampling and transportation structure of the gas collection card is simple and reliable, and the gas collection card is not prone to clogging problems, which reduces the failure rate of the detector, thereby reducing the maintenance and use costs of the detector.

[0046] 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.

[0047] 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 card-type Helicobacter pylori detector, characterized in that: include: A shell, wherein a sample inlet is provided on the top of the shell, and an openable upper cover is provided at the sample inlet, a touch screen for receiving external action commands is provided on the main surface of the shell, and a sample outlet is provided on the side panel of the shell near the bottom of the shell; A detection unit, the detection unit is accommodated in the inner cavity of the shell, comprising: A material tray, wherein a plurality of card holes for accommodating gas collecting cards are provided on the circumference of the material tray, and a sample injection control member for blocking or penetrating the card holes is provided below the material tray; A driving mechanism, used for driving the material tray to rotate so as to control the placement position on the material tray; A measuring device, the measuring device is located below the sample injection control component, and is used to receive the gas collecting card released by any card hole and detect the sample in the gas collecting card. The measuring device is provided with a barcode scanner for scanning and reading the barcode information of the gas collecting card, and a sample placing port and a sample placing control component for controlling the opening and closing of the sample placing port are provided at the bottom of the measuring device; A conveying mechanism, the conveying mechanism is located below the measuring device, and the output end of the conveying mechanism is adjacent to the sample outlet, and is used to receive the gas collecting card after the test and send the gas collecting card to the outside of the housing through the sample outlet; and The signal processing unit includes a main control board, which is used to receive the action instructions sent by the touch display screen to control the operation of the sample injection control component, the driving mechanism and the transmission mechanism, and receive the barcode information sent by the barcode scanner and the detection information sent by the measuring device, and analyze and calculate the detection information to output the test results; The sample feeding control component comprises a tray for supporting the material tray, a plurality of limit pins slidably arranged at the bottom of the tray and arranged along the circumferential direction of the tray, a ferromagnetic component is arranged at the end of the limit pin, and a first electromagnet adjacent to the sample feeding end of the measuring device and used to control the movement of the limit pin, a plurality of through holes corresponding to and connected to the card holes are opened on the tray, and a limit pin is arranged below each through hole; when the limit pin is adjacent to the first electromagnet and the first electromagnet is energized, the limit pin is attracted by the first electromagnet to move away from the center of the tray to release the gas collecting card, and when the first electromagnet loses power or the limit pin leaves the first electromagnet, the limit pin resets and rebounds to block the card hole; The measuring device comprises a measuring chamber provided with a gas collecting card, a Geiger-Muller counter tube for sensing decay rays of markers in the gas collecting card is arranged inside the measuring chamber, and a lead screen block is coated outside the measuring chamber for shielding rays; The sample release control component includes a baffle plate elastically connected to the lead screen block and used to block the sample release port, and a second electromagnet located outside the lead screen block. The second electromagnet is used to be energized and attract the baffle plate under the control of the main control board to open the sample release port, so that the gas collection card after detection can fall into the conveying mechanism for transportation. The lead screen block is provided with an opening for providing a connection channel between the second electromagnet and the baffle plate.

2. The card-type Helicobacter pylori detector according to claim 1, characterized in that: The bottom of the tray is provided with a plurality of fixing members corresponding to the through holes one by one and used for mounting the limit pins, and the fixing members are provided with guide grooves for limiting the movement path of the limit pins.

3. The card-type Helicobacter pylori detector according to claim 2, characterized in that: An annular groove is provided on the limit pin near the end of the limit pin, and the bottom of the annular groove is made of ferromagnetic material. The first electromagnet is provided with a hook extending along the depth direction of the annular groove at one end near the limit pin, which is used to cooperate with the inner wall of the annular groove to hook the limit pin.

4. The card-type Helicobacter pylori detector according to claim 2, characterized in that: A return spring for providing a return resilience force to the limit pin is arranged in the guide groove, or the limit pin is an elastic member connected to the inner wall of the guide groove.

5. The card-type Helicobacter pylori detector according to claim 2, characterized in that: The clamp hole comprises a vertical portion for defining the position of the air collecting clamp and a horizontal portion for providing an air flow channel.

6. The card-type Helicobacter pylori detector according to claim 1, characterized in that: A connection interface is provided on the back of the shell, and the connection interface is electrically connected to the main control board and is used for plugging in an external data connection line.

7. The card-type Helicobacter pylori detector according to claim 1, characterized in that: It also includes a printing mechanism housed in the shell, the shell is provided with a paper outlet connected to the output end of the printing mechanism, and the printing mechanism receives the test results sent by the main control board and prints them.

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