Liver directional puncture sampling equipment

Abstract

The invention provides liver directional puncture sampling equipment, and relates to the technical field of liver puncture. The liver directional puncture sampling equipment comprises a movable base, the upper surface of the movable base is fixedly connected with a vertical mounting stand column, the top of the vertical mounting stand column is fixedly connected with a horizontal fixed transverse plate, and the lower surface of the horizontal fixed transverse plate is slidably connected with a horizontal movable transverse plate. According to the liver tissue sampling device, a second driving air cylinder is started, the piston end of the second driving air cylinder drives a lifting moving plate to move downwards, a piston rod body drives a piston block to move downwards, meanwhile, an electromagnetic valve on one first fixing pipe is opened, and liver tissue in a sampling needle cylinder is pushed into one collecting cylinder; then the needle is continuously punctured to the next depth, the operation is repeated, sampling of another position is completed, sampling of multiple positions of different depths can be completed through one-time puncture, repeated needle pulling and inserting are not needed, and harm to a patient is reduced.

Description

Technical Field

[0001] This invention relates to the field of liver biopsy technology, specifically to a liver directional biopsy sampling device. Background Technology

[0002] Liver biopsy is a procedure that involves aspirating liver tissue using a needle for pathological examination. Clinically, it is widely used in the diagnosis of hepatitis, fatty liver, and liver cancer. It is a method that directly reveals pathological changes in liver tissue and provides a relatively objective and accurate diagnosis. The clinical significance of liver biopsy includes: aiding in the differential diagnosis of various liver diseases; understanding the extent and activity of liver lesions; providing etiological diagnosis for various types of viral hepatitis; detecting early, quiescent, or compensated cirrhosis; differentiating the nature and cause of jaundice; serving as an indicator for assessing the condition and prognosis of chronic hepatitis; and enabling diagnostic treatment.

[0003] Patent publication number CN110882043B discloses a directional puncture sampling device for treating liver diseases, solving the problems of low positioning accuracy, low puncture efficiency, and inability to accurately locate and insert needles to precise depths in existing technologies. The device includes a telescopic support with an upper fixed ring connected to it and a lower fixed ring connected below it. An external gear ring and an internal gear ring rotate between the upper and lower fixed rings. A one-way wheel is coaxially mounted on the external gear ring. A first gear is mounted on the lower fixed ring, and a second gear meshes next to it. The second gear meshes with the internal gear ring. A probe mounting slot is formed on the internal gear ring, and a first stop and a second stop rotate on either side of the slot. An arc-shaped pressure plate is installed inside the probe mounting slot, and an ultrasonic probe is installed within the slot. A puncture needle is mounted behind the one-way wheel. This invention enables the switching of positions between the ultrasonic probe, sterilization bottle, anesthetic needle, and puncture needle, and allows for more accurate positioning of the liver and puncture location.

[0004] However, liver biopsy does not actually involve sampling from just one location. It requires sampling at different depths within the liver. Traditional sampling devices require multiple punctures to complete sampling at multiple locations, which causes multiple injuries to the patient and presents many inconveniences. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a liver-directed puncture sampling device, which solves the problem that traditional sampling devices require multiple punctures to complete sampling at multiple sites, thus causing multiple injuries to patients.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a liver directional puncture sampling device, comprising a movable base, a vertical mounting column fixedly connected to the upper surface of the movable base, a horizontal fixed plate fixedly connected to the top of the vertical mounting column, a horizontal moving plate slidably connected to the lower surface of the horizontal fixed plate, a driving assembly for moving the horizontal moving plate mounted on the upper surface of the horizontal fixed plate, a first U-shaped mounting frame fixedly connected to the lower surface of the horizontal moving plate, a second U-shaped mounting frame connected to the first U-shaped mounting frame via a lifting assembly, and fixing assemblies connected to both sides of the second U-shaped mounting frame. A fixed guide rod is fixedly connected to the inner wall of the second U-shaped mounting bracket. A first threaded moving block is slidably connected to the outer surface of the fixed guide rod. A first power assembly for driving the first threaded moving block is installed on the second U-shaped mounting bracket. A horizontal mounting plate is fixedly connected to the side wall of the first threaded moving block. A sampling syringe is inserted through the surface of the horizontal mounting plate. A sampling needle is movably inserted into the bottom end of the sampling syringe. A second power assembly for driving the sampling syringe is installed on the upper surface of the horizontal mounting plate. A sampling assembly is installed on the outer surface of the sampling syringe. A collection assembly is connected to the side of the horizontal mounting plate away from the first threaded moving block.

[0009] Preferably, the lower surface of the horizontal fixed plate is provided with a movable groove, and the upper surface of the horizontal movable plate is fixedly connected with a movable slider, which is slidably connected inside the movable groove. Both the movable slider and the movable groove have a dovetail shape in cross-section.

[0010] Preferably, the driving assembly includes a first driving cylinder fixedly connected to the upper surface of a horizontally fixed cross plate. A driving connecting shaft is fixedly connected to the piston end of the first driving cylinder. A connecting moving plate is fixedly connected to the end of the driving connecting shaft away from the first driving cylinder. The connecting moving plate is fixedly connected to the upper surface of the horizontally movable cross plate. When the first driving cylinder is activated, the piston end of the first driving cylinder moves the driving connecting shaft. The driving connecting shaft moves the horizontally movable cross plate through the connecting moving plate. The horizontally movable cross plate moves the first U-shaped mounting bracket. The first U-shaped mounting bracket moves the second U-shaped mounting bracket.

[0011] Preferably, the lifting assembly includes a take-up roller shaft rotatably connected to the inner wall of the first U-shaped mounting frame. A steel wire connecting rope is wound around the outer surface of the take-up roller shaft. The free end of the steel wire connecting rope is fixedly connected to the top of the second U-shaped mounting frame. A third servo motor is fixedly connected to the side wall of the first U-shaped mounting frame. The output shaft of the third servo motor is fixedly connected to the take-up roller shaft. When the third servo motor is started, the output shaft of the third servo motor rotates the take-up roller shaft, and the take-up roller shaft unwinds the steel wire connecting rope, causing the steel wire connecting rope to lower the second U-shaped mounting frame.

[0012] Preferably, the fixing component includes a guide mounting rod inserted through the side wall of the second U-shaped mounting bracket, one end of the guide mounting rod being fixedly connected to a clamping plate, a threaded adjusting rod being threaded through and threadedly connected to the side wall of the second U-shaped mounting bracket, one end of the threaded adjusting rod being rotatably connected to the clamping plate, and the other end of the threaded adjusting rod being fixedly connected to a handwheel.

[0013] Preferably, the first power assembly includes a first servo motor fixedly connected to the side wall of the second U-shaped mounting bracket, the output shaft of the first servo motor being fixedly connected to a first threaded rotating rod, the end of the first threaded rotating rod away from the first servo motor being rotatably connected to the inner wall of the second U-shaped mounting bracket, and the first threaded moving block being threadedly connected to the outer surface of the first threaded rotating rod.

[0014] Preferably, the second power assembly includes a second servo motor fixedly connected to the upper surface of the horizontal mounting plate. The output shaft of the second servo motor is fixedly connected to a second threaded rotating rod. A second threaded moving block is threadedly connected to the outer surface of the second threaded rotating rod. A lifting vertical rod is fixedly connected to the lower surface of the second threaded moving block. One end of the lifting vertical rod away from the second threaded moving block passes through the surface of the horizontal mounting plate and is fixedly connected to a horizontal connecting seat. A fixing ring is fixedly connected to one side of the horizontal connecting seat. The fixing ring is fixedly connected to the outer surface of the sampling syringe. When the second servo motor is started, the output shaft of the second servo motor rotates the second threaded rotating rod, causing the second threaded moving block to move downward with the lifting vertical rod. The horizontal connecting seat moves downward with the sampling syringe through the fixing ring, allowing the sampling needle to puncture the patient's liver.

[0015] Preferably, the sampling assembly includes a rectangular seat fixedly connected to the outer surface of the sampling syringe. A second driving cylinder is fixedly connected to the upper surface of the rectangular seat. A lifting and moving plate is fixedly connected to the piston end of the second driving cylinder. A piston rod is fixedly connected to the lower surface of the lifting and moving plate. One end of the piston rod away from the lifting and moving plate extends into the interior of the sampling syringe and is fixedly connected to a piston block. The piston block is slidably connected to the inner wall of the sampling syringe.

[0016] Preferably, the collection assembly includes a sampling placement seat fixedly connected to the side wall of a horizontal mounting plate. Multiple rectangular snap-fit ​​blocks are fixedly connected to the upper surface of the sampling placement seat. A collection cylinder is placed inside each rectangular snap-fit ​​block. An L-shaped mounting bracket is fixedly connected to the upper surface of the sampling placement seat. A horizontal mounting tube is fixedly connected to the end of the L-shaped mounting bracket away from the sampling placement seat. Multiple first fixing tubes are fixedly connected to the upper surface of the horizontal mounting tube. A first connecting hose is fixedly connected to the end of each first fixing tube away from the horizontal mounting tube. An installation plug is inserted into the collection cylinder and has an exhaust port. A second connecting hose is fixedly connected to the lower surface of the horizontal mounting tube. A second fixing tube is fixedly connected to the end of the second connecting hose away from the horizontal mounting tube. The end of the second fixing tube away from the second connecting hose is fixedly connected to a sampling syringe.

[0017] Preferably, the sampling needle is provided with a first one-way valve, the second fixed tube is equipped with a second one-way valve, and the first fixed tube is equipped with a solenoid valve.

[0018] (III) Beneficial Effects

[0019] This invention provides a targeted liver biopsy device. It has the following beneficial effects:

[0020] 1. This invention involves activating a second driving cylinder, causing the piston end of the second driving cylinder to move upwards along with a lifting and moving plate, which in turn moves the piston rod and piston block upwards, thereby drawing liver tissue into the sampling syringe. Then, the second driving cylinder is activated again, causing the piston end of the second driving cylinder to move downwards along with the lifting and moving plate, which in turn moves the piston rod and piston block downwards. Simultaneously, the solenoid valve on one of the first fixed tubes is opened, pushing the liver tissue inside the sampling syringe into one of the collection cylinders. The needle is then inserted further to the next depth, and the above operation is repeated to complete sampling at another location. This allows for multiple samplings at different depths in a single puncture, eliminating the need for repeated needle insertion and removal, thus reducing harm to the patient.

[0021] 2. In this invention, the third servo motor is activated, and its output shaft rotates the take-up roller shaft. The take-up roller shaft unwinds the steel wire connecting rope, causing the steel wire connecting rope to lower the second U-shaped mounting frame downwards, bringing the second U-shaped mounting frame closer to the bed board. Then, the handwheels on both sides are rotated, causing the threaded adjustment rod to rotate, moving the clamping plate closer to the second U-shaped mounting frame, allowing the clamping plate to engage with the second U-shaped mounting frame and fix it to the bed. The first servo motor is then activated, and its output shaft rotates the first threaded rotating rod, causing the first threaded moving block to move on the outer surface of the first threaded rotating rod, thereby aligning the sampling needle with the patient's liver. This invention has strong applicability and improves the versatility of the equipment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a liver directional puncture sampling device provided by the present invention;

[0023] Figure 2 A schematic diagram of the first U-shaped mounting frame structure of a liver directional puncture sampling device provided by the present invention;

[0024] Figure 3 This invention provides a schematic diagram of the second U-shaped mounting frame structure of a liver directional puncture sampling device;

[0025] Figure 4 This is a schematic diagram of the second power component structure of a liver directional puncture sampling device provided by the present invention;

[0026] Figure 5 This is a schematic diagram of the collection component structure of a liver directional puncture sampling device provided by the present invention;

[0027] Figure 6 The present invention provides a liver targeted puncture sampling device. Figure 1 Enlarged diagram of point A in the middle.

[0028] The components include: 1. Movable base; 2. Vertical mounting column; 3. Horizontal fixed cross plate; 4. Horizontal moving cross plate; 5. Movable slider; 6. Movable slide rail; 7. First drive cylinder; 8. Drive connecting shaft; 9. Connecting moving plate; 10. First U-shaped mounting bracket; 11. Take-up roller shaft; 12. Third servo motor; 13. Steel wire connecting rope; 14. Second U-shaped mounting bracket; 15. Fixed guide rod; 16. First threaded moving block; 17. First servo motor; 18. First threaded rotating rod; 19. Horizontal mounting plate; 20. Sampling syringe; 21. Sampling needle; 22. Second servo... 23. Serving motor; 24. Second threaded rotating rod; 25. Second threaded moving block; 26. Lifting vertical rod; 27. Horizontal connecting seat; 28. Fixed ring body; 29. ​​Piston rod body; 20. Second drive cylinder; 31. Lifting moving plate; 32. Sampling placement seat; 33. Rectangular snap-fit ​​block; 34. Collection cylinder; 35. L-shaped mounting bracket; 36. Horizontal mounting tube; 37. First fixed tube; 38. First connecting hose; 39. Mounting plug; 40. Second fixed tube; 41. Second connecting hose; 42. Guide mounting rod; 43. Clamping plate; 44. Threaded adjusting rod; 45. Handwheel. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] like Figure 1-6 As shown, this embodiment of the invention provides a liver directional puncture sampling device, including a movable base 1, a locking universal wheel installed at the bottom of the movable base 1, a vertical mounting column 2 fixedly connected to the upper surface of the movable base 1, a horizontal fixed plate 3 fixedly connected to the top of the vertical mounting column 2, a horizontal moving plate 4 slidably connected to the lower surface of the horizontal fixed plate 3, a movable groove 6 provided on the lower surface of the horizontal fixed plate 3, and a movable slider 5 fixedly connected to the upper surface of the horizontal moving plate 4. The movable slider 5 is slidably connected inside the movable groove 6, and the cross-sectional shape of both the movable slider 5 and the movable groove 6 is dovetail-shaped.

[0032] A drive assembly for moving a horizontally moving horizontal plate 4 is installed on the upper surface of the horizontally fixed plate 3. The drive assembly includes a first drive cylinder 7 fixedly connected to the upper surface of the horizontally fixed plate 3. A drive connecting shaft 8 is fixedly connected to the piston end of the first drive cylinder 7. A connecting moving plate 9 is fixedly connected to the end of the drive connecting shaft 8 away from the first drive cylinder 7. The connecting moving plate 9 is fixedly connected to the upper surface of the horizontally moving horizontal plate 4. When the first drive cylinder 7 is activated, the piston end of the first drive cylinder 7 moves the drive connecting shaft 8. The drive connecting shaft 8 moves the horizontally moving horizontal plate 4 through the connecting moving plate 9. The horizontally moving horizontal plate 4 moves the first U-shaped mounting bracket 10. The first U-shaped mounting bracket 10 moves the second U-shaped mounting bracket 14.

[0033] A first U-shaped mounting bracket 10 is fixedly connected to the lower surface of the horizontally movable cross plate 4. The first U-shaped mounting bracket 10 is connected to a second U-shaped mounting bracket 14 via a lifting assembly. The lifting assembly includes a take-up roller shaft 11 rotatably connected to the inner wall of the first U-shaped mounting bracket 10. A steel wire connecting rope 13 is wound around the outer surface of the take-up roller shaft 11. The free end of the steel wire connecting rope 13 is fixedly connected to the top of the second U-shaped mounting bracket 14. A third servo motor 12 is fixedly connected to the side wall of the first U-shaped mounting bracket 10. The output shaft of the third servo motor 12 is fixedly connected to the take-up roller shaft 11. When the third servo motor 12 is started, the output shaft of the third servo motor 12 rotates the take-up roller shaft 11, and the take-up roller shaft 11 unwinds the steel wire connecting rope 13, so that the steel wire connecting rope 13 lowers the second U-shaped mounting bracket 14.

[0034] Both sides of the second U-shaped mounting bracket 14 are connected to fixing components. The fixing components include a guide mounting rod 41 that is inserted through the side wall of the second U-shaped mounting bracket 14. One end of the guide mounting rod 41 is fixedly connected to a clamping plate 42. A threaded adjusting rod 43 is threaded through and threadedly connected to the side wall of the second U-shaped mounting bracket 14. One end of the threaded adjusting rod 43 is rotatably connected to the clamping plate 42. The other end of the threaded adjusting rod 43 is fixedly connected to a handwheel 44. Rotating the handwheels 44 on both sides causes the threaded adjusting rod 43 to rotate, which moves the clamping plate 42 closer to the second U-shaped mounting bracket 14, so that the clamping plate 42 cooperates with the second U-shaped mounting bracket 14 to fix the second U-shaped mounting bracket 14 on the bed.

[0035] A fixed guide rod 15 is fixedly connected to the inner wall of the second U-shaped mounting bracket 14. A first threaded moving block 16 is slidably connected to the outer surface of the fixed guide rod 15. A first power assembly for driving the first threaded moving block 16 to move is installed on the second U-shaped mounting bracket 14. The first power assembly includes a first servo motor 17 fixedly connected to the side wall of the second U-shaped mounting bracket 14. A first threaded rotating rod 18 is fixedly connected to the output shaft of the first servo motor 17. The end of the first threaded rotating rod 18 away from the first servo motor 17 is rotatably connected to the inner wall of the second U-shaped mounting bracket 14. The first threaded moving block 16 is threadedly connected to the outer surface of the first threaded rotating rod 18. When the first servo motor 17 is started, the output shaft of the first servo motor 17 rotates the first threaded rotating rod 18, causing the first threaded moving block 16 to move on the outer surface of the first threaded rotating rod 18, thereby aligning the sampling needle 21 with the patient's liver.

[0036] A horizontal mounting plate 19 is fixedly connected to the side wall of the first threaded moving block 16. A sampling syringe 20 is inserted through the surface of the horizontal mounting plate 19. A sampling needle 21 is movably inserted into the bottom end of the sampling syringe 20. A second power assembly for driving the sampling syringe 20 to move is mounted on the upper surface of the horizontal mounting plate 19. The second power assembly includes a second servo motor 22 fixedly connected to the upper surface of the horizontal mounting plate 19. A second threaded rotating rod 23 is fixedly connected to the output shaft of the second servo motor 22. A second threaded moving block 24 is threadedly connected to the outer surface of the second threaded rotating rod 23. A second threaded moving block 24 is fixedly connected to the lower surface of the second threaded moving block 24. A lifting vertical rod 25 is connected. One end of the lifting vertical rod 25 away from the second threaded moving block 24 passes through the surface of the horizontal mounting plate 19 and is fixedly connected to a horizontal connecting seat 26. A fixing ring 27 is fixedly connected to one side of the horizontal connecting seat 26. The fixing ring 27 is fixedly connected to the outer surface of the sampling syringe 20. When the second servo motor 22 is started, the output shaft of the second servo motor 22 rotates the second threaded rotating rod 23, causing the second threaded moving block 24 to move the lifting vertical rod 25 downward. The horizontal connecting seat 26 moves the sampling syringe 20 downward through the fixing ring 27, so that the sampling needle 21 punctures the patient's liver.

[0037] A sampling assembly is installed on the outer surface of the sampling syringe 20. The sampling assembly includes a rectangular seat fixedly connected to the outer surface of the sampling syringe 20. A second drive cylinder 29 is fixedly connected to the upper surface of the rectangular seat. A lifting moving plate 30 is fixedly connected to the piston end of the second drive cylinder 29. A piston rod 28 is fixedly connected to the lower surface of the lifting moving plate 30. One end of the piston rod 28 away from the lifting moving plate 30 extends into the interior of the sampling syringe 20 and is fixedly connected to a piston block. The piston block is slidably connected to the inner wall of the sampling syringe 20.

[0038] A collection assembly is connected to the side of the horizontal mounting plate 19 away from the first threaded moving block 16. The collection assembly includes a sampling placement seat 31 fixedly connected to the side wall of the horizontal mounting plate 19. A plurality of rectangular snap-fit ​​blocks 32 are fixedly connected to the upper surface of the sampling placement seat 31. A collection cylinder 33 is placed inside the rectangular snap-fit ​​blocks 32. An L-shaped mounting bracket 34 is fixedly connected to the upper surface of the sampling placement seat 31. A horizontal mounting tube 35 is fixedly connected to the end of the L-shaped mounting bracket 34 away from the sampling placement seat 31. A plurality of first fixing tubes 36 are fixedly connected to the upper surface of the horizontal mounting tube 35. The end of the first fixing tube 36 away from the horizontal mounting tube 35 is fixedly connected to... A first connecting hose 37 is provided. The end of the first connecting hose 37 away from the first fixed tube 36 passes through and is fixedly connected to an installation plug 38. The installation plug 38 is inserted into the inside of the collection cylinder 33. An exhaust port is provided on the installation plug 38. A second connecting hose 40 is fixedly connected to the lower surface of the horizontal installation tube 35. A second fixed tube 39 is fixedly connected to the end of the second connecting hose 40 away from the horizontal installation tube 35. The end of the second fixed tube 39 away from the second connecting hose 40 is fixedly connected to the sampling syringe 20. A first one-way valve is provided on the sampling needle 21. A second one-way valve is installed on the second fixed tube 39. A solenoid valve is installed on the first fixed tube 36.

[0039] Working principle:

[0040] In use, the sampling device is moved to the patient's side by moving the base 1, and the first drive cylinder 7 is activated. The piston end of the first drive cylinder 7 moves the drive connecting shaft 8. The drive connecting shaft 8 moves the horizontal moving plate 4 through the connecting moving plate 9. The horizontal moving plate 4 moves the first U-shaped mounting bracket 10. The first U-shaped mounting bracket 10 moves the second U-shaped mounting bracket 14, so that the second U-shaped mounting bracket 14 moves the sampling syringe 20 to the patient's liver.

[0041] Then, the third servo motor 12 is started. The output shaft of the third servo motor 12 rotates the take-up roller shaft 11, which unwinds the steel wire connecting rope 13, causing the steel wire connecting rope 13 to lower the second U-shaped mounting frame 14 and bring it closer to the bed board. Then, the handwheels 44 on both sides are rotated, which rotates the threaded adjustment rod 43, causing the clamping plate 42 to move closer to the second U-shaped mounting frame 14, so that the clamping plate 42 cooperates with the second U-shaped mounting frame 14 and fixes the second U-shaped mounting frame 14 on the bed. The first servo motor 17 is started. The output shaft of the first servo motor 17 rotates the first threaded rotating rod 18, causing the first threaded moving block 16 to move on the outer surface of the first threaded rotating rod 18, so that the sampling needle 21 is aligned with the patient's liver.

[0042] The second servo motor 22 is activated, and its output shaft rotates the second threaded rotating rod 23, causing the second threaded moving block 24 to move downward along with the lifting vertical rod 25. The horizontal connecting seat 26 moves downward along with the sampling syringe 20 via the fixed ring 27, allowing the sampling needle 21 to puncture the patient's liver. After puncturing to a certain depth, the puncture is stopped, and then the second drive cylinder 29 is activated. The piston end of the second drive cylinder 29 moves upward along with the lifting moving plate 30, causing the piston rod 28 to move upward along with the piston block, thereby drawing liver tissue into the sampling syringe 20. The second drive cylinder 29 is activated again, and its piston end moves downward along with the lifting moving plate 30, causing the piston rod 28 to move downward along with the piston block. At the same time, the solenoid valve on one of the first fixed tubes 36 is opened, pushing the liver tissue inside the sampling syringe 20 into one of the collection cylinders 33. The puncture continues to the next depth, and the above operation is repeated to complete the sampling at another location.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liver directional puncture sampling device, comprising a movable base (1), characterized in that: A vertical mounting column (2) is fixedly connected to the upper surface of the movable base (1). A horizontal fixed plate (3) is fixedly connected to the top of the vertical mounting column (2). A horizontal moving plate (4) is slidably connected to the lower surface of the horizontal fixed plate (3). A driving component for moving the horizontal moving plate (4) is installed on the upper surface of the horizontal fixed plate (3). A first U-shaped mounting bracket (10) is fixedly connected to the lower surface of the horizontal moving plate (4). The first U-shaped mounting bracket (10) is connected to a second U-shaped mounting bracket (14) via a lifting component. Fixed components are connected to both sides of the second U-shaped mounting bracket (14). A fixed guide rod (15) is fixedly connected to the inner wall of the second U-shaped mounting bracket (14). A first threaded moving block (16) is slidably connected to the outer surface of the rod (15). A first power component for driving the first threaded moving block (16) to move is installed on the second U-shaped mounting bracket (14). A horizontal mounting plate (19) is fixedly connected to the side wall of the first threaded moving block (16). A sampling syringe (20) is inserted through the surface of the horizontal mounting plate (19). A sampling needle (21) is movably inserted into the bottom end of the sampling syringe (20). A second power component for driving the sampling syringe (20) to move is installed on the upper surface of the horizontal mounting plate (19). A sampling component is installed on the outer surface of the sampling syringe (20). A collection component is connected to the side of the horizontal mounting plate (19) away from the first threaded moving block (16).

2. The liver targeted puncture sampling device according to claim 1, characterized in that: The lower surface of the horizontal fixed plate (3) is provided with a movable groove (6), and the upper surface of the horizontal movable plate (4) is fixedly connected with a movable slider (5). The movable slider (5) is slidably connected inside the movable groove (6). The cross-sectional shape of the movable slider (5) and the movable groove (6) is dovetail-shaped.

3. The liver targeted puncture sampling device according to claim 1, characterized in that: The drive assembly includes a first drive cylinder (7) fixedly connected to the upper surface of a horizontal fixed plate (3). The piston end of the first drive cylinder (7) is fixedly connected to a drive connecting shaft (8). The end of the drive connecting shaft (8) away from the first drive cylinder (7) is fixedly connected to a connecting moving plate (9). The connecting moving plate (9) is fixedly connected to the upper surface of a horizontal moving plate (4).

4. The liver directional puncture sampling device according to claim 1, characterized in that: The lifting assembly includes a take-up roller shaft (11) rotatably connected to the inner wall of the first U-shaped mounting frame (10). A steel wire connecting rope (13) is wound around the outer surface of the take-up roller shaft (11). The free end of the steel wire connecting rope (13) is fixedly connected to the top of the second U-shaped mounting frame (14). A third servo motor (12) is fixedly connected to the side wall of the first U-shaped mounting frame (10). The output shaft of the third servo motor (12) is fixedly connected to the take-up roller shaft (11).

5. The liver directional puncture sampling device according to claim 1, characterized in that: The fixing assembly includes a guide mounting rod (41) that is inserted through the side wall of the second U-shaped mounting bracket (14). One end of the guide mounting rod (41) is fixedly connected to a clamping plate (42). A threaded adjusting rod (43) is threaded through and threadedly connected to the side wall of the second U-shaped mounting bracket (14). One end of the threaded adjusting rod (43) is rotatably connected to the clamping plate (42), and the other end of the threaded adjusting rod (43) is fixedly connected to a handwheel (44).

6. The liver targeted puncture sampling device according to claim 1, characterized in that: The first power assembly includes a first servo motor (17) fixedly connected to the side wall of the second U-shaped mounting bracket (14). The output shaft of the first servo motor (17) is fixedly connected to a first threaded rotating rod (18). One end of the first threaded rotating rod (18) away from the first servo motor (17) is rotatably connected to the inner wall of the second U-shaped mounting bracket (14). The first threaded moving block (16) is threadedly connected to the outer surface of the first threaded rotating rod (18).

7. The liver directional puncture sampling device according to claim 1, characterized in that: The second power assembly includes a second servo motor (22) fixedly connected to the upper surface of the horizontal mounting plate (19). The output shaft of the second servo motor (22) is fixedly connected to a second threaded rotating rod (23). The outer surface of the second threaded rotating rod (23) is threadedly connected to a second threaded moving block (24). The lower surface of the second threaded moving block (24) is fixedly connected to a lifting vertical rod (25). One end of the lifting vertical rod (25) away from the second threaded moving block (24) passes through the surface of the horizontal mounting plate (19) and is fixedly connected to a horizontal connecting seat (26). One side of the horizontal connecting seat (26) is fixedly connected to a fixing ring (27). The fixing ring (27) is fixedly connected to the outer surface of the sampling syringe (20).

8. The liver directional puncture sampling device according to claim 1, characterized in that: The sampling assembly includes a rectangular seat fixedly connected to the outer surface of the sampling syringe (20). A second driving cylinder (29) is fixedly connected to the upper surface of the rectangular seat. A lifting moving plate (30) is fixedly connected to the piston end of the second driving cylinder (29). A piston rod (28) is fixedly connected to the lower surface of the lifting moving plate (30). One end of the piston rod (28) away from the lifting moving plate (30) extends into the interior of the sampling syringe (20) and is fixedly connected to a piston block. The piston block is slidably connected to the inner wall of the sampling syringe (20).

9. The liver directional puncture sampling device according to claim 1, characterized in that: The collection assembly includes a sampling placement seat (31) fixedly connected to the side wall of a horizontal mounting plate (19). Multiple rectangular snap-fit ​​blocks (32) are fixedly connected to the upper surface of the sampling placement seat (31). A collection cylinder (33) is placed inside each rectangular snap-fit ​​block (32). An L-shaped mounting bracket (34) is fixedly connected to the upper surface of the sampling placement seat (31). A horizontal mounting tube (35) is fixedly connected to one end of the L-shaped mounting bracket (34) away from the sampling placement seat (31). Multiple first fixing tubes (36) are fixedly connected to the upper surface of the horizontal mounting tube (35). The first fixing tubes (36) are located away from the horizontal mounting tube (31). One end of the horizontal mounting tube (35) is fixedly connected to a first connecting hose (37). The end of the first connecting hose (37) away from the first fixed tube (36) is connected to an installation plug (38). The installation plug (38) is inserted into the inside of the collection cylinder (33). The installation plug (38) is provided with an exhaust port. The lower surface of the horizontal mounting tube (35) is fixedly connected to a second connecting hose (40). The end of the second connecting hose (40) away from the horizontal mounting tube (35) is fixedly connected to a second fixed tube (39). The end of the second fixed tube (39) away from the second connecting hose (40) is fixedly connected to the sampling syringe (20).

10. A liver directional puncture sampling device according to claim 9, characterized in that: The sampling needle (21) is equipped with a first one-way valve, the second fixed tube (39) is equipped with a second one-way valve, and the first fixed tube (36) is equipped with a solenoid valve.

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