A diagnostic and screening system for early detection of gastrointestinal tumors

Abstract

This invention discloses a diagnostic and screening system for early screening of gastrointestinal tumors, comprising a detector body, a detector gate, a placement block, a drive component, an extraction component, a liquid dosing component, a pushing component, an adjusting component, and a limiting component. This invention addresses the standard testing process for early screening of gastrointestinal tumors by achieving fully automated operation through an integrated structural design, including constant temperature incubation, automatic quantitative dosing of washing and reaction solutions, sequential switching, and waste liquid extraction. The entire process requires no manual intervention, significantly simplifying the testing operation, effectively avoiding errors and instability caused by human intervention, and significantly improving the standardization and reliability of the testing process, making early screening for gastrointestinal tumors more efficient, convenient, and stable.

Description

Technical Field

[0001] This invention mainly relates to the field of biological detection reaction device technology, specifically a diagnostic and screening system for early screening of gastrointestinal tumors. Background Technology

[0002] In the field of early non-invasive screening for gastrointestinal tumors, immunomagnetic separation detection technology has become a commonly used screening method. Relying on a standard procedure of isothermal incubation, multiple washing, and colorimetric reaction, it can achieve rapid and non-invasive detection of tumor markers, providing a reliable basis for early risk assessment. Currently, the equipment used for this type of detection is still mainly semi-automatic or manually assisted. Steps such as adding liquid, draining liquid, and switching processes require manual intervention or rely on simple electronic control, making it difficult to form a continuous and stable fully automated detection process.

[0003] In practical use, the automation level of liquid dispensing and process switching is insufficient, resulting in cumbersome operation steps, low detection efficiency, and susceptibility to result fluctuations due to human error, affecting the stability and consistency of the test. Furthermore, existing equipment lacks an integrated structure highly compatible with the immunomagnetic separation screening process, exhibiting deficiencies in the coordination of temperature control, reagent dosing, magnetic bead fixation, and waste liquid treatment. This makes it difficult to meet the standardized, convenient, and highly stable usage requirements of large-scale screening at the grassroots level and rapid on-site testing. Summary of the Invention

[0004] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. It mainly provides a diagnostic and screening system for early screening of gastrointestinal tumors, which solves the technical problem mentioned in the background that existing detection devices cannot achieve full automation in the re-injection liquid switching operation.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A diagnostic and screening system for early screening of gastrointestinal tumors includes a detector body, a detector door, a placement block for placing test tubes inside the detector body, a drive component for automatically maintaining a constant temperature of the placement block inside the detector body, an extraction component for extracting waste liquid inside the test tubes, a liquid dosing component inside the detector body, and a pushing component, an adjusting component, and a limiting component for controlling the liquid dosing component to automatically and intermittently switch the addition of cleaning solution and reaction solution inside the test tubes.

[0007] Preferably, the detector body has a placement block inside, the test tube body is placed inside the placement block, a magnet is sleeved on the outside of the placement block, and a slide rail is provided inside the detector body.

[0008] Preferably, the driving component includes a heating block, which is attached to the bottom of the placement block. Sliders are provided on both the left and right sides of the heating block, and the sliders are slidably connected to the slide rail.

[0009] Preferably, the driving component further includes an airbag, which is disposed inside the detector body and is attached to the bottom of the heating block. An air outlet pipe is provided on one side of the airbag, and a push rod is inserted into the end of the air outlet pipe away from the airbag. The push rod is attached to one side of the heating block.

[0010] A telescopic sleeve is provided on the side of the heating block away from the push rod. The end of the telescopic sleeve away from the heating block is fixedly connected to the inner wall of the detector body. A push spring is sleeved on the telescopic sleeve.

[0011] Preferably, the extraction component includes a liquid extraction tube, which is located at the liquid inlet of the liquid extraction pump in the detector body. The end of the liquid extraction tube away from the liquid extraction pump is directly above the test tube body. A connecting block is provided on the liquid extraction tube, and a threaded sleeve is provided at the end of the connecting block away from the liquid extraction tube. The threaded sleeve is threaded onto a screw, and the screw is rotatably connected inside the detector body. A flat gear is provided at the end of the screw away from the threaded sleeve, and a toothed groove that meshes with the flat gear is provided on the slider on the left side.

[0012] Preferably, the liquid dosing assembly includes two sets of liquid storage tanks, which are arranged on the upper and lower sides of the detector body. The two sets of liquid storage tanks are respectively connected to the quantitative liquid storage bladder through pipelines. A liquid dosing tube is provided at the end of the quantitative liquid storage bladder away from the liquid storage tank, and the outlet of the liquid dosing tube away from the quantitative liquid storage bladder is directly facing the test tube body.

[0013] Preferably, the liquid dosing assembly further includes two docking plates, which are disposed inside the right slide rail. Each of the two docking plates has a first insert rod on one side, and a first spring is sleeved on the first insert rod.

[0014] The slide rail on the right side is also equipped with a first liquid storage tube. The end of the first insertion rod away from the docking plate is inserted into the first liquid storage tube. The detector body is equipped with a second liquid storage tube. The second liquid storage tube and the first liquid storage tube are connected by a first connecting pipe. The end of the second liquid storage tube away from the first connecting pipe is connected to a second insertion rod. A squeezing block is provided on the side of the second insertion rod facing the quantitative liquid storage bladder. A reset spring is sleeved on the second insertion rod.

[0015] Preferably, the pushing assembly includes a pushing plate, which is slidably connected to the right slide rail. A lifting rod is slidably connected to the pushing plate, and an electric control button is provided in the slide groove of the lifting rod on the pushing plate. An electric telescopic rod is provided on one side of the pushing plate, and docking rods are provided on both sides of the sleeve slidably connected to the lifting rod. A first elastic docking piece is provided on the side of the pushing plate away from the electric telescopic rod.

[0016] Preferably, the adjustment component includes a detection elastic plate, which is arc-shaped and disposed on the slide rail. A third insert is disposed in the middle of the detection elastic plate, and the third insert is inserted into the oil cavity opened on the slide rail. A second spring is sleeved on the third insert.

[0017] The slide rail is also provided with a third liquid storage pipe. The third liquid storage pipe is connected to the oil cavity opened in the slide rail through a second connecting pipe. A fourth insert rod is inserted into the end of the third liquid storage pipe away from the second connecting pipe. A third spring is sleeved on the fourth insert rod. A lifting block is provided at the end of the fourth insert rod away from the third liquid storage pipe and fits against the right docking rod.

[0018] Preferably, the limiting component includes a limiting block, which is disposed on a slide rail. The limiting block has a limiting groove, and the right-side docking rod is inserted into the limiting groove. A movable rod is slidably connected to the limiting block. A second elastic docking piece is disposed at the end of the movable rod away from the limiting block. The second elastic docking piece is in contact with a first elastic docking piece. A movable block is disposed at the end of the movable rod away from the first elastic docking piece. A fourth spring is sleeved on the movable rod, and multiple sets of locking plates are disposed on the movable block.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention addresses the standard detection process for early screening of gastrointestinal tumors. Through an integrated structural design, it achieves fully automated operation of constant temperature incubation, automatic quantitative addition of washing and reaction solutions, sequential switching, and waste liquid extraction. The entire process requires no manual supervision, greatly simplifies the detection operation, effectively avoids errors and instability caused by manual intervention, significantly improves the standardization of the detection process and the reliability of results, and makes early screening of gastrointestinal tumors more efficient, convenient, and stable.

[0020] This invention integrates thermally driven constant temperature control, magnetic separation adsorption, synchronous liquid extraction and automatic liquid dosing functions into one unit. It features uniform reaction temperature, reliable magnetic bead fixation, and precise reagent dosing. The overall structure is simple and compact, and the operation is stable and durable. It can reduce the dependence on complex electrical control systems, facilitate the miniaturization and low-cost popularization of equipment, and can better adapt to primary healthcare and on-site rapid testing scenarios. It has strong practicality and market promotion value.

[0021] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the detector body of the present invention from the left side;

[0024] Figure 3 This is a schematic diagram of the internal structure of the detector body of the present invention on the right side;

[0025] Figure 4 This is a top view of the internal structure of the detector body of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the extraction component and the driving component of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the liquid dosing component of the present invention;

[0028] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0029] Figure 8 This is a partial structural diagram of the right-side slide rail of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the front of the component of the present invention;

[0031] Figure 10 This is a three-dimensional structural diagram of the side of the component of the present invention;

[0032] Figure 11 This is a schematic diagram of the internal structure of the limiting block of the present invention;

[0033] Figure 12 This is a schematic diagram of the internal limiting groove of the limiting block of the present invention;

[0034] The diagram is marked as follows:

[0035] 1. Detector body; 11. Detector door; 12. Test tube body; 13. Placement block; 14. Magnet; 15. Slide rail; 16. Slider;

[0036] 2. Drive assembly; 21. Heating block; 22. Airbag; 23. Air outlet pipe; 24. Push rod; 25. Telescopic sleeve rod; 26. Push spring;

[0037] 3. Extraction assembly; 31. Extraction tube; 32. Connecting block; 33. Threaded sleeve; 34. Screw; 35. Flat gear; 36. Gear groove;

[0038] 4. Liquid dosing assembly; 411. Storage tank; 412. Quantitative storage bladder; 413. Dosing tube; 414. Connecting plate; 415. First insert rod; 416. First spring; 417. First storage tube; 418. First connecting tube; 419. Second storage tube; 420. Second insert rod; 421. Squeezing block;

[0039] 5. Pushing component; 51. Pushing plate; 52. Electrical control button; 53. Electric telescopic rod; 54. Lifting rod; 55. Connecting rod; 56. First elastic connecting piece;

[0040] 6. Adjustment assembly; 61. Detection elastic plate; 62. Third insertion rod; 63. Second spring; 64. Second connecting pipe; 65. Third liquid storage pipe; 66. Fourth insertion rod; 67. Third spring; 68. Lifting block;

[0041] 7. Restriction component; 71. Restriction block; 72. Restriction groove; 73. Movable rod; 74. Second elastic mating piece; 75. Fourth spring; 76. Movable block; 77. Clamping plate. Detailed Implementation

[0042] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0043] Please refer to the appendix carefully. Figures 1-12 A diagnostic and screening system for early screening of gastrointestinal tumors includes a detector body 1, a detector door 11 on the detector body 1, a placement block 13 for placing a test tube body 12 inside the detector body 1, a drive component 2 for automatically maintaining the temperature of the placement block 13 inside the detector body 1, an extraction component 3 for extracting waste liquid inside the test tube body 12 on the detector body 1, a liquid dosing component 4 inside the detector body 1, and a pushing component 5, an adjusting component 6, and a limiting component 7 for controlling the liquid dosing component 4 to automatically and intermittently switch the addition of cleaning solution and reaction solution inside the test tube body 12.

[0044] The specific operation process of this invention is as follows: Open the detector body 1, place the test tube body 12 inside the placement block 13. At this time, the drive component 2 will heat the placement block 13. When the placement block 13 maintains a temperature of 37°C, the drive component 2 will move away from the placement block 13 to prevent the placement block 13 from continuously heating up and affecting the test tube body 12. The drive component 2 will move forward and contact the extraction component 3 first. The drive component 2 will drive the extraction component 3 to insert into the test tube body 12 to extract the waste liquid. Then, the drive component 2 will continue to move forward and contact the push component 5. The push component 5, together with the adjustment component 6 and the limiting component 7, will start to drive. The liquid dosing component 4 adds liquid to the inside of the test tube body 12 for the first time. The liquid dosing component 4 adds cleaning solution for the first and second times, and reaction solution for the third time. The dosing is carried out in a cycle according to this pattern, and the liquid added each time is a fixed amount of liquid. After the liquid dosing component 4 adds liquid, the placement block 13 begins to cool down. In order to prevent the test tube temperature from being insufficient, the driving component 2 will move back and reset to below the placement block 13. Since the placement block 13 is only slightly cooled at this time, the driving component 2 stays below the placement block 13 for a shorter time. The shorter time will heat the placement block 13 to 37°C, and the driving component 2 will move forward again.

[0045] Please refer to Figures 2-5 The detector body 1 has a placement block 13 inside, and the test tube body 12 is placed inside the placement block 13. A magnet 14 is sleeved on the outside of the placement block 13. A slide rail 15 is provided inside the detector body 1. The drive component 2 includes a heating block 21, which is attached to the bottom of the placement block 13. Slider blocks 16 are provided on both sides of the heating block 21, and the sliders 16 are slidably connected to the slide rail 15. The drive component 2 also includes an airbag 22, which is located inside the detector body 1 and is attached to the bottom of the heating block 21. An air outlet pipe 23 is provided on one side of the airbag 22. A push rod 24 is inserted into the end of the air outlet pipe 23 away from the airbag 22. The push rod 24 is attached to one side of the heating block 21. A telescopic sleeve 25 is provided on the side of the heating block 21 away from the push rod 24. The end of the telescopic sleeve 25 away from the heating block 21 is fixedly connected to the inner wall of the detector body 1. A push spring 26 is sleeved on the telescopic sleeve 25.

[0046] Heating block 21 is heated electrically. Slider blocks 16 are located on both sides of heating block 21, and these sliders 16 are slidably connected to slide rails 15 on the left and right sides. Placement block 13 has a heat-preserving function and maintains a uniform overall temperature. Magnet 14 is a permanent magnet used to attract the immunomagnetic beads that need to react in the sample inside the test tube body 12, preventing them from being drawn away. The air bladder 22 contains carbon dioxide. A piston is also installed at one end of the push rod 24, which is inserted into the air outlet pipe 23. While heating placement block 13, heating block 21 also heats the gas inside air bladder 22. When heating block 21 reaches 37°C, the expansion of carbon dioxide generates a thrust on push rod 24 that is greater than the force of push spring 26. At this point, push rod 24 pushes heating block 21 towards telescopic sleeve 25, compressing telescopic sleeve 25 and push spring 26. A section of air bladder 22 is also located along the forward movement path. The initial forward movement path of heating block 21 also affects the air bladder. 22 is heated, and the thrust generated by carbon dioxide on push rod 24 continues to increase until heating block 21 continues to move towards push assembly 5 after passing extraction component 3. At this time, heating block 21 separates from air bag 22. Heating block 21 does not heat air bag 22 at this time, but the force of carbon dioxide expansion still pushes heating block 21 forward until heating block 21 pushes push assembly 5 through adjustment component 6 and limiting component 7 to contact liquid dosing component 4 and drive liquid dosing component 4. At this time, the rebound force of push spring 26 is greater than the thrust of push rod 24, and push spring 26 and telescopic sleeve 25 begin to rebound and reset. Heating block 21 moves to the bottom of placement block 13 to reheat placement block 13. Since placement block 13 and air bag 22 have a certain degree of stability at this time, heating block 21 will be pushed forward a second time by push rod 24 in a very short time. Placement block 13 is made of aluminum alloy, heating block 21 is made of ceramic heating plate, and magnet 14 is made of neodymium iron boron permanent magnet.

[0047] Please refer to Figure 5 The extraction component 3 includes a liquid extraction tube 31, which is located at the liquid inlet of the liquid pump in the main body 1 of the detector. The end of the liquid extraction tube 31 away from the liquid pump is directly above the test tube body 12. A connecting block 32 is provided on the liquid extraction tube 31. A threaded sleeve 33 is provided at the end of the connecting block 32 away from the liquid extraction tube 31. The threaded sleeve 33 is threaded onto the screw 34. The screw 34 is rotatably connected inside the main body 1 of the detector. A spur gear 35 is provided at the end of the screw 34 away from the threaded sleeve 33. A toothed groove 36 that meshes with the spur gear 35 is provided on the left slider 16.

[0048] The extraction tube 31 is a telescopic tube. The screw 34 is rotatably connected inside the detector body 1, and the threaded sleeve 33 is slidably connected inside the detector body 1. The threaded sleeve 33 is restricted from rotating with the screw 34 (this part is a relatively mature technical means in the prior art, which will not be elaborated in this article). When the heating block 21 moves and drives the left slider 16 to pass through the spur gear 35, the spur gear 35 will drive the screw 34 to rotate. The threaded sleeve 33 has a threaded hole inside that matches the screw 34. The rotation of the screw 34 drives the threaded sleeve 33 to descend. The threaded sleeve 33 pulls the extraction tube 31 down through the connecting block 32 and inserts it into the test tube body 12. When the extraction tube 31 descends, the extraction pump will start to extract the waste liquid until the waste liquid is emptied and then the extraction stops. When cleaning liquid and reaction liquid are added later, the extraction tube 31 is still inserted inside the test tube body 12 for a period of time, but the extraction pump will not start to extract liquid again. When the extraction pump extracts liquid again, the extraction tube 31 will descend again.

[0049] Please refer to Figure 6 and Figure 7 The liquid dosing assembly 4 includes two sets of liquid storage tanks 411, which are located on the upper and lower sides of the detector body 1. The two sets of liquid storage tanks 411 are connected to a quantitative liquid storage bladder 412 via pipes. A dosing tube 413 is located at the end of the quantitative liquid storage bladder 412 furthest from the liquid storage tanks 411, with the outlet of the dosing tube 413 facing the test tube body 12. The liquid dosing assembly 4 also includes two docking plates 414, which are located inside the right-side slide rail 15. A first insertion rod 415 is located on one side of each docking plate 414. The upper part is fitted with a first spring 416; the right slide rail 15 is also equipped with a first liquid storage tube 417. The end of the first insertion rod 415 away from the docking plate 414 is inserted into the first liquid storage tube 417. The detector body 1 is equipped with a second liquid storage tube 419. The second liquid storage tube 419 and the first liquid storage tube 417 are connected by a first connecting pipe 418. The end of the second liquid storage tube 419 away from the first connecting pipe 418 is connected with a second insertion rod 420. The side of the second insertion rod 420 facing the quantitative liquid storage bladder 412 is equipped with a squeezing block 421. A reset spring is fitted on the second insertion rod 420.

[0050] There are two storage tanks 411, one at the bottom and one at the top. The bottom tank stores the cleaning solution, and the top tank stores the reaction solution. Both storage tanks 411 are connected to the quantitative storage bladder 412 through pipelines. Each pipeline is equipped with a one-way valve to ensure that the liquid can only flow into the quantitative storage bladder 412 through the storage tank 411. A one-way valve is also installed at the connection between the quantitative storage bladder 412 and the liquid injection pipe 413 to ensure that the liquid can only be injected into the liquid injection pipe 413 through the quantitative storage bladder 412.

[0051] The docking plate 414 is a single plate divided into three parts. The lower docking plate 414 occupies two-thirds, and the upper docking plate 414 occupies only one-third. The pushing component 5 can only push one docking plate 414 at a time. The lower docking plate 414 corresponds to the lower quantitative liquid storage bladder 412, and the upper docking plate 414 corresponds to the upper quantitative liquid storage bladder 412. Due to the proportional distinction, the pushing component 5 will push the lower docking plates 414 on both sides and then push the upper docking plate 414 once. When the pushing component 5 pushes the docking plate 414, the docking plate 414 moves backward and squeezes the first insertion rod 415 and the first spring 416. The first insertion rod 415 is inserted into a piston at one end of the first liquid storage tube 417. The first insertion rod 415 increases the squeezing of the first liquid storage tube 417. Hydraulic oil inside the first liquid storage tube 417 is pumped through the first connecting pipe 418 to the second liquid storage tube 419. The second insert rod 420 is inserted into one end of the second liquid storage tube 419, which is also equipped with a piston. As the amount of hydraulic oil inside the second liquid storage tube 419 increases, it pushes the second insert rod 420 forward. The second insert rod 420 drives the squeezing block 421 forward to squeeze the quantitative liquid storage bladder 412. The quantitative liquid storage bladder 412 is squeezed and the liquid inside is squeezed out and transported into the test tube body 12 through the liquid inlet pipe 413. When the squeezing block 421 moves backward to release the quantitative liquid storage bladder 412, the quantitative liquid storage bladder 412 will replenish the liquid inside the liquid storage tank 411 through the pipeline. However, the quantitative liquid storage bladder 412 ensures that the amount of liquid replenished each time is consistent.

[0052] Please refer to Figure 9 and Figure 10 The pushing component 5 includes a pushing plate 51, which is slidably connected to the right slide rail 15. A lifting rod 54 is slidably connected to the pushing plate 51, and an electric control button 52 is provided in the slide groove of the lifting rod 54 on the pushing plate 51. An electric telescopic rod 53 is provided on one side of the pushing plate 51. A docking rod 55 is provided on both sides of the sleeve slidably connected to the lifting rod 54. A first elastic docking piece 56 is provided on the side of the pushing plate 51 away from the electric telescopic rod 53.

[0053] The housing is slidably connected to the lifting rod 54. The housing can drive the docking rod 55 to move back and forth on the lifting rod 54. However, when the docking rod 55 moves up and down, it will drive the docking rod 55 to move back and forth synchronously through the housing. The push plate 51 has three electric control buttons 52 in its groove, which correspond to the lifting rod 54 pushing the docking plate 414 three times. The three electric control buttons 52 drive the electric telescopic rod 53 to extend by a certain amount. The electric control button 52 at the top drives the electric telescopic rod 53 to extend by a longer length. The lowest end of the electric telescopic rod 53 is set in a hemispherical shape. When the slider 16 on the right side of the heating block 21 pushes the push plate 51, the push plate 51 will drive the lifting rod 54 to move forward and push the docking plate 414 that is in front, thereby driving the liquid dosing component 4.

[0054] Please refer to Figure 8 and Figure 10 The adjusting component 6 includes a detection elastic plate 61, which is arc-shaped and mounted on the slide rail 15. A third insert rod 62 is located in the middle of the detection elastic plate and is inserted into the oil cavity opened on the slide rail 15. A second spring 63 is sleeved on the third insert rod 62. A third liquid storage pipe 65 is also provided on the slide rail 15. The third liquid storage pipe 65 is connected to the oil cavity opened on the slide rail 15 through a second connecting pipe 64. A fourth insert rod 66 is inserted at the end of the third liquid storage pipe 65 away from the second connecting pipe 64. A third spring 67 is sleeved on the fourth insert rod 66. A lifting block 68 is provided at the end of the fourth insert rod 66 away from the third liquid storage pipe 65 and fits against the right docking rod 55.

[0055] When the push plate 51 moves backward, the spherical surface of the electric telescopic rod 53 contacts the arc surface of the detection elastic plate 61. The electric telescopic rod 53 pushes the arc surface of the detection elastic plate 61 downward (the planes at both ends of the detection elastic plate 61 are slidably connected to the slide rail 15, and the planes at both ends slide outward when the detection elastic plate 61 is pressed down). The amount of downward pressure of the detection elastic plate 61 is controlled according to the extension amount of the electric telescopic rod 53. The detection elastic plate 61 drives the third insert rod 62 to press down, increasing the portion of the oil cavity inserted into the slide rail 15. Since a piston is provided at one end of the third insert rod 62 inserted into the oil cavity, the third insert rod 62 squeezes the hydraulic oil in the oil cavity and transports it through the second connecting pipe 64. Entering the third liquid storage tube 65, the fourth insertion rod 66 is inserted into one end of the third liquid storage tube 65, which is also equipped with a piston. Hydraulic oil pushes the fourth insertion rod 66 to move upward. The fourth insertion rod 66 drives the lifting rod 54 to move upward through the docking rod 55. At this time, the lifting rod 54 will press the upper layer's electronic control button 52. However, at this time, the electronic control button 52 will not drive the electric telescopic rod 53 to extend. When the push plate 51 moves forward as a whole, it will not drive the electric telescopic rod 53 to extend. Only when the push plate 51 moves backward and contacts the limiting component 7 will the electric telescopic rod 53 extend according to the electronic control button 52. That is to say, the electric telescopic rod 53 will only be energized during the backward movement.

[0056] Please refer to Figures 10-12 The limiting component 7 includes a limiting block 71, which is mounted on the slide rail 15. A limiting groove 72 is provided on the limiting block 71. The right-side connecting rod 55 is inserted into the limiting groove 72. A movable rod 73 is slidably connected to the limiting block 71. A second elastic connecting piece 74 is provided at the end of the movable rod 73 away from the limiting block 71. The second elastic connecting piece 74 is in contact with the first elastic connecting piece 56. A movable block 76 is provided at the end of the movable rod 73 away from the first elastic connecting piece 56. A fourth spring 75 is sleeved on the movable rod 73. Multiple sets of locking plates 77 are provided on the movable block 76.

[0057] When the push plate 51 moves forward, the first elastic mating piece 56 and the second elastic mating piece 74 come into contact. At this time, since the movable block 76 and the locking plate 77 cannot move forward, the first elastic mating piece 56 and the second elastic mating piece 74 deform and rub against each other, allowing the push plate 51 to move forward. At this time, the front of the first elastic mating piece 56 and the second elastic mating piece are in contact, and no power is supplied to the electric telescopic rod 53. When the push plate 51 moves backward, the back of the first elastic mating piece 56 and the second elastic mating piece 74 come into contact, and the electric telescopic rod 53 is powered. The electric telescopic rod 53 extends the trigger adjustment component 6, driving the lifting rod 54 to move upward. At the same time, since the movable block 76 and the locking plate 77 can move backward, the first elastic mating piece 56 and the second elastic mating piece 74 pull the movable rod 73 to compress the fourth spring 75 and move backward until the end. At this time, the locking block is opened, and the lifting rod 54 passes through the locking plate 77 and rises one step. At this time, the first elastic mating piece 56 and the second elastic mating piece 74... Unable to push the movable rod 73 backward any further, separation begins. At this time, the electric telescopic rod 53 also begins to retract, and the movable block 76 and the locking plate 77 rebound with the fourth spring 75. However, the docking rod 55 on one side of the lifting rod 54 is supported by the locking plate 77 and rises one step, while the electric control button 52 also rises one step. The extension of the electric telescopic rod 53 will also be longer next time. The next forward and backward movement of the push plate 51 will drive the lifting rod 54 to rise another step. When the push plate 51 moves backward for the third time, the corresponding liquid dosing component 4 will also add cleaning fluid twice and reaction fluid once. When the push plate 51 moves backward for the third time and drives the lifting rod 54 to move upward, the docking rod 55 on the right side will move upward and move into the arc-shaped groove above the limiting groove 72. Following the guide docking rod 55 of the arc-shaped groove, the lifting rod 54 will descend and reset to the lowest end, restarting a new round of dosing. In this way, the regular dosing of the liquid dosing component 4 is achieved by adding cleaning fluid twice and then adding reaction fluid once.

[0058] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A diagnostic and screening system for early screening of gastrointestinal tumors, comprising a detector body (1), wherein the detector body (1) is provided with a detector gate (11), characterized in that: The detector body (1) is provided with a placement block (13) for placing the test tube body (12) inside. The detector body (1) is provided with a drive component (2) for automatically maintaining the temperature of the placement block (13) inside. The detector body (1) is provided with an extraction component (3) for extracting waste liquid inside the test tube body (12) inside. The detector body (1) is provided with a liquid addition component (4) inside. The detector body (1) is provided with a push component (5), an adjustment component (6), and a limit component (7) for controlling the liquid addition component (4) to automatically and intermittently switch the addition of cleaning liquid and reaction liquid inside the test tube body (12).

2. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 1, characterized in that: The detector body (1) has a placement block (13) inside, the test tube body (12) is placed inside the placement block (13), the placement block (13) is fitted with a magnet (14) on the outside, and the detector body (1) has a slide rail (15) inside.

3. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 2, characterized in that: The drive assembly (2) includes a heating block (21), which is attached to the bottom of the placement block (13). The heating block (21) is provided with sliders (16) on both the left and right sides, and the sliders (16) are slidably connected to the slide rail (15).

4. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 1, characterized in that: The drive assembly (2) also includes an airbag (22), which is located inside the detector body (1) and is attached to the bottom of the heating block (21). An air outlet pipe (23) is provided on one side of the airbag (22), and a push rod (24) is inserted into the end of the air outlet pipe (23) away from the airbag (22). The push rod (24) is attached to one side of the heating block (21). The heating block (21) is provided with a telescopic sleeve (25) on the side away from the push rod (24). The end of the telescopic sleeve (25) away from the heating block (21) is fixedly connected to the inner wall of the detector body (1). A push spring (26) is sleeved on the telescopic sleeve (25).

5. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 3, characterized in that: The extraction component (3) includes a liquid extraction tube (31), which is located at the liquid inlet of the liquid pump of the detector body (1). The end of the liquid extraction tube (31) away from the liquid pump is located directly above the test tube body (12). A connecting block (32) is provided on the liquid extraction tube (31). A threaded sleeve (33) is provided on the end of the connecting block (32) away from the liquid extraction tube (31). The threaded sleeve (33) is threaded onto the screw (34). The screw (34) is rotatably connected inside the detector body (1). A spur gear (35) is provided on the end of the screw (34) away from the threaded sleeve (33). A toothed groove (36) that meshes with the spur gear (35) is provided on the slider (16) on the left side.

6. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 1, characterized in that: The liquid dosing assembly (4) includes two sets of liquid storage tanks (411). The two sets of liquid storage tanks (411) are arranged on the upper and lower sides of the detector body (1). The two sets of liquid storage tanks (411) are respectively connected to the quantitative liquid storage bladder (412) through pipelines. The quantitative liquid storage bladder (412) is provided with a liquid dosing tube (413) at the end away from the liquid storage tank (411). The outlet of the liquid dosing tube (413) at the end away from the quantitative liquid storage bladder (412) is directly facing the test tube body (12).

7. A diagnostic and screening system for early screening of gastrointestinal tumors according to claim 6, characterized in that: The liquid dosing assembly (4) also includes two docking plates (414), which are arranged inside the right slide rail (15). A first insertion rod (415) is provided on one side of each of the two docking plates (414), and a first spring (416) is sleeved on the first insertion rod (415). The slide rail (15) on the right side is also provided with a first liquid storage tube (417). The first insertion rod (415) is inserted into the first liquid storage tube (417) at one end away from the docking plate (414). The detector body (1) is provided with a second liquid storage tube (419). The second liquid storage tube (419) and the first liquid storage tube (417) are connected by a first connecting pipe (418). The second liquid storage tube (419) is inserted into a second insertion rod (420) at one end away from the first connecting pipe (418). The second insertion rod (420) is provided with a squeezing block (421) on the side facing the quantitative liquid storage bladder (412). A reset spring is sleeved on the second insertion rod (420).

8. The diagnostic and screening system for early screening of gastrointestinal tumors according to claim 7, characterized in that: The pushing assembly (5) includes a pushing plate (51), which is slidably connected to the right slide rail (15). A lifting rod (54) is slidably connected to the pushing plate (51), and an electric control button (52) is provided in the groove of the lifting rod (54) on the pushing plate (51). An electric telescopic rod (53) is provided on one side of the pushing plate (51), and docking rods (55) are provided on both sides of the housing slidably connected to the lifting rod (54). A first elastic docking piece (56) is provided on the side of the pushing plate (51) away from the electric telescopic rod (53).

9. A diagnostic and screening system for early screening of gastrointestinal tumors according to claim 8, characterized in that: The adjustment component (6) includes a detection elastic plate (61), which is arc-shaped and mounted on a slide rail (15). A third insert rod (62) is provided in the middle of the detection elastic plate. The third insert rod (62) is inserted into the oil cavity opened on the slide rail (15). A second spring (63) is sleeved on the third insert rod (62). The slide rail (15) is also provided with a third liquid storage pipe (65). The third liquid storage pipe (65) is connected to the oil cavity opened in the slide rail (15) through a second connecting pipe (64). A fourth insert rod (66) is inserted into the end of the third liquid storage pipe (65) away from the second connecting pipe (64). A third spring (67) is sleeved on the fourth insert rod (66). A lifting block (68) is provided at the end of the fourth insert rod (66) away from the third liquid storage pipe (65) and fits against the right docking rod (55).

10. A diagnostic and screening system for early screening of gastrointestinal tumors according to claim 8, characterized in that: The limiting component (7) includes a limiting block (71), which is mounted on the slide rail (15). A limiting groove (72) is provided on the limiting block (71). The right-side docking rod (55) is inserted into the limiting groove (72). A movable rod (73) is slidably connected to the limiting block (71). A second elastic docking piece (74) is provided at the end of the movable rod (73) away from the limiting block (71). The second elastic docking piece (74) is in contact with the first elastic docking piece (56). A movable block (76) is provided at the end of the movable rod (73) away from the first elastic docking piece (56). A fourth spring (75) is sleeved on the movable rod (73). Multiple sets of clamping plates (77) are provided on the movable block (76).

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