An adjustable angle puncture needle

Abstract

This invention relates to puncture needles and discloses an adjustable-angle puncture needle, comprising a base plate, with fixing blocks fixedly connected to both sides of the lower part of the base plate, and a rotating shaft fixedly connected to the lower part of the two fixing blocks. A fourth hinge is sleeved on the outer side of the rotating shaft, and a mounting plate is fixedly connected to one side of the fourth hinge. A first mounting hole is formed on one side of the mounting plate, and a mounting bolt is movable within the mounting hole. A fourth control plate is fixedly connected to one side of the base plate, and a plurality of second mounting holes are equidistantly formed along the periphery of the fourth control plate, with the mounting bolt passing through the lowest second mounting hole. The adjustable-angle puncture needle of this invention facilitates adjustment of the puncture needle's angle, height, and fixation, thus simplifying its use.

Description

Technical Field

[0001] This invention relates to puncture needles, and more particularly to an adjustable-angle puncture needle. Background Technology

[0002] A puncture needle is a medical device used in minimally invasive surgery to sample and inject tissues from various organs, including the kidneys, liver, lungs, breasts, thyroid gland, prostate, pancreas, testes, uterus, ovaries, and the body surface. Puncture needles require a fixation device for prolonged use.

[0003] Existing puncture needles have certain drawbacks in use. First, it is inconvenient to adjust the angle of the existing puncture needle, making it difficult to use. Second, it is inconvenient to adjust the height of the existing puncture needle. Finally, it is inconvenient to fix the existing puncture needle in place. Summary of the Invention

[0004] The main objective of this invention is to provide an adjustable-angle puncture needle, which solves the problems of existing puncture needles being inconvenient to adjust the angle, use, height, and fixation.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An adjustable-angle puncture needle includes a base plate. Fixing blocks are fixedly connected to both sides of the lower part of the base plate. A rotating shaft is fixedly connected to the lower part of each of the two fixing blocks. A fourth hinge is sleeved on the outer side of the rotating shaft. A mounting plate is fixedly connected to one side of the fourth hinge. A first mounting hole is formed on one side of the mounting plate, and a mounting bolt moves within the mounting hole. A fourth control plate is fixedly connected to one side of the base plate. A plurality of second mounting holes are equidistantly formed along the periphery of the fourth control plate, and the mounting bolt passes through the lowest second mounting hole. A first spring is fixedly connected to one side of the plate, a first pull plate is fixedly connected to one end of the first spring, a first pull rod is fixedly connected to one side of the first pull plate, a first through hole is opened inside the first spring on the bottom plate, and the first pull rod passes through the first through hole, a turntable fixing plate is fixedly connected to the upper side of the bottom plate, a turntable is sleeved on the top of the turntable fixing plate, a plurality of limiting grooves are equidistantly opened along the circumference of the bottom of the turntable, one end of the first pull rod is sleeved in the outermost limiting groove, and a puncture needle fixing assembly is provided above the turntable.

[0007] Furthermore, a second support plate is movably connected to one side of the fourth hinge, a third hinge is movably connected to one side of the second support plate, a control box is movably connected to the lower part of the third hinge, a fifth control plate is fixedly connected to the upper side of the control box, and a fifth control slot is provided on the fifth control plate.

[0008] Furthermore, a first support plate is movably connected to one side of the fourth hinge, a second hinge is movably connected to one side of the first support plate, a slider is fixedly connected to the lower part of the second hinge, and the slider moves within the control box. A fifth control rod is fixedly connected to the upper end of one side of the slider, and the fifth control rod passes through a fifth control slot. A second connecting plate is fixedly connected to the upper end of the fifth control rod, a third spring is fixedly connected to the upper end of the second connecting plate, a second pull plate is fixedly connected to one end of the third spring, a second pull rod is fixedly connected to the lower part of the second pull plate, a second connecting hole is opened in the third spring of the second connecting plate, and the second pull rod passes through the second connecting hole. A third control plate is fixedly connected to one side of the control box, and a plurality of third control holes are equidistantly opened on the third control plate, and the second pull rod passes through the outermost third control hole.

[0009] Furthermore, two second fixed semi-rings are fixedly connected at equal intervals below the control box, and two first hinges are fixedly connected at equal intervals below the control box, with each first hinge located on one side of one of the two second fixed semi-rings. A first fixed semi-ring is movably connected to one side of each of the two first hinges. First control plates are fixedly connected to both sides of the lower part of the control box, and a first control groove is formed on one side of each of the two first control plates. A first control rod passes through and is connected to each of the two first control grooves. A roller is fitted onto the outer circumference of the first control rod, and one side of the roller abuts against the two first fixed semi-rings. A first baffle is fixedly connected to one end of the first control rod, and a first connecting plate is fixedly connected to the other end of the first control rod. A first connecting hole is formed on one side of the first connecting plate, and a fixing bolt is fixedly connected to one side of the first connecting hole. A second control plate is fixedly connected to one side of the control box, and a first control groove is formed on one side of the second control plate, with the fixing bolt passing through the first control groove.

[0010] Furthermore, the puncture needle fixation assembly includes a fixing box, and a base plate is fixedly connected to the bottom of the fixing box. A liquid reservoir is movable inside the fixing box, and a push rod is movably connected to one side of the liquid reservoir. A fifth hinge is fixedly connected to the upper side of one side of the fixing box, and a locking plate is movably connected to one side of the fifth hinge. The push rod is locked to one side of the locking plate, and a first locking hole is opened on one side of the locking plate. A second locking hole is opened on one side of the fixing box, and connecting bolts pass through the first and second locking holes.

[0011] Furthermore, the puncture needle fixation assembly also includes a fixation bracket, and a turntable is fixedly connected to the lower part of the fixation bracket. Two second springs are fixedly connected to the two inner walls of the fixation bracket, and a locking block is fixedly connected to one end of each of the two second springs. A fixing cylinder is engaged between the two locking blocks, and a limiting block is engaged above the two locking blocks. A limiting hole is opened above the limiting block, and a control bolt is fitted into the limiting hole. A fixing hole is opened above the fixation bracket, and the control bolt passes through the fixing hole. A puncture tube is movably connected inside the fixing cylinder. A connecting tube is movably connected to one end of the liquid storage cylinder, and one end of the connecting tube is movably connected to the fixing cylinder. The connecting tube communicates with the internal space of the puncture tube.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This invention, through the design of the base plate, facilitates the adjustment of the angle of the puncture needle. Remove the mounting bolts and rotate the base plate. Because the base plate is connected to the rotating shaft via a fixing block at its bottom, it can rotate around the shaft. The base plate drives the fourth control plate to rotate until the required second mounting hole aligns with the first mounting hole. Then, the mounting bolts are passed through the second and first mounting holes to fix the angle of one plane of the puncture needle fixing assembly. Pull down the first pull plate until it drives the first pull rod until the first pull rod no longer moves within the limiting groove. Rotate the turntable until it reaches the desired angle. Release the first pull plate, and the first spring, through the first pull plate, drives the first pull rod upward into the limiting groove, thus completing the adjustment of the angle of the other plane of the puncture needle fixing assembly. This design facilitates the adjustment of the puncture needle angle and the use of the puncture needle.

[0014] 2. This invention, through the design of the fourth hinge, facilitates the adjustment of the puncture needle height. Pulling the second pull plate upwards until it stops the second pull rod from moving within the third control hole pushes the slider within the control box. The slider, via the second hinge, moves the first support plate, which in turn pushes the fourth hinge upwards. Because one side of the fourth hinge is movably connected to the second support plate, and the third hinge, connected to one side of the second support plate, is fixed, the fourth hinge only moves when the first support plate moves. Once the fourth hinge reaches the desired height, the second pull plate is released, and the third spring causes the second pull rod on the second pull plate to enter the third control hole, thus fixing the second pull rod. The fourth hinge is connected to the base plate via a pivot and a fixing block. The base plate is connected to the puncture needle fixing assembly. Therefore, changing the height of the fourth hinge can adjust the height of the puncture needle fixing assembly. This design facilitates the adjustment of the puncture needle height.

[0015] 3. The present invention facilitates the fixation of the puncture needle by setting the first fixing half-ring. The ultrasonic probe is inserted between the first hinge and the second hinge. The fixing bolt is removed, and the first connecting plate is pushed. The first connecting plate drives the first control rod to move along the first control groove on the first control plate. The first control rod drives the roller to move. The roller pushes the first hinge to rotate around the first hinge as the axis until the first hinge and the second hinge clamp the ultrasonic probe. The fixing bolt is then fixed through the first control groove and the first connecting hole on the first connecting plate. This design facilitates the fixation of the puncture needle.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an adjustable puncture needle according to the present invention at one angle.

[0018] Figure 2 This is a schematic diagram of the overall structure of an adjustable puncture needle according to the present invention from another angle.

[0019] Figure 3 This is an enlarged schematic diagram of a portion of the structure of the first hinge of an adjustable-angle puncture needle according to the present invention.

[0020] Figure 4 This is an enlarged schematic diagram of a portion of the fourth hinge of an adjustable-angle puncture needle according to the present invention.

[0021] Figure 5 This is an enlarged schematic diagram of a portion of the structure of an adjustable-angle puncture needle according to the present invention after the puncture needle angle has been adjusted.

[0022] Figure 6 This is an enlarged schematic diagram of a portion of the limiting block of an adjustable-angle puncture needle according to the present invention.

[0023] In the diagram: 1. First fixed half-ring; 2. First hinge; 3. Second fixed half-ring; 4. Control box; 5. First control board; 6. First connecting plate; 7. Second control board; 8. Fixing bolt; 9. Roller; 10. First baffle; 11. Third control board; 12. Second hinge; 13. First support plate; 14. Third hinge; 15. Second support plate; 16. Fourth hinge; 17. Rotating shaft; 18. Fixing block; 20. Fourth control board; 22. Bottom 23. First pull plate; 24. First spring; 25. Turntable; 26. Fixed bracket; 27. Second spring; 28. Locking block; 29. ​​Control bolt; 31. Limiting block; 32. Fixed cylinder; 33. Puncture tube; 34. Fixed box; 35. Liquid storage cylinder; 36. Connecting tube; 38. Push rod; 39. Fifth hinge; 40. Locking plate; 41. Slider; 43. Second connecting plate; 44. Third spring; 45. Second pull plate; 47. Fifth control plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 , Figures 4-5As shown, an adjustable-angle puncture needle includes a base plate 22. Fixing blocks 18 are fixedly connected to both sides of the lower part of the base plate 22. A rotating shaft 17 is fixedly connected below the two fixing blocks 18. A fourth hinge 16 is sleeved on the outer side of the rotating shaft 17. A mounting plate is fixedly connected to one side of the fourth hinge 16. A first mounting hole is opened on one side of the mounting plate, and a mounting bolt moves within the mounting hole. A fourth control plate 20 is fixedly connected to one side of the base plate 22. Several second mounting holes are equidistantly opened along the circumference of the fourth control plate 20. The mounting bolt passes through the second mounting hole at the bottom. A first spring 24 is fixedly connected to one side of the base plate 22. A first pull plate 23 is fixedly connected to one end of the first spring 24. A first pull rod is fixedly connected to one side of the first pull plate 23. A first through hole is opened inside the base plate 22, and the first pull rod passes through the first through hole. A turntable 25 fixing plate is fixedly connected to the upper side of the base plate 22. A turntable 25 is sleeved on the upper part of the turntable 25 fixing plate. Several limiting grooves are equidistantly opened along the circumference of the turntable 25. One end of a pull rod is fitted into a limiting groove at the outermost end. A puncture needle fixing assembly is provided above the turntable 25. By adopting the above technical solution, the mounting bolts are removed, and the base plate 22 is rotated. Since the bottom of the base plate 22 is connected to the rotating shaft 17 through the fixing block 18, the base plate 22 can rotate around the rotating shaft 17 as the axis. The base plate 22 drives the fourth control plate 20 to rotate until the required second mounting hole is aligned with the first mounting hole. The mounting bolts are then passed through the second mounting hole and the first mounting hole to fix the angle of one plane of the puncture needle fixing assembly. The first pull plate 23 is pulled down until the first pull plate 23 drives the first pull rod until the first pull rod no longer moves in the limiting groove. The turntable 25 is rotated until the turntable 25 is rotated to the required angle. The first pull plate 23 is released, and the first spring 24 drives the first pull rod to move upward through the first pull plate 23 and enter the limiting groove. The angle of the other plane of the puncture needle fixing assembly is then adjusted. This setting facilitates the adjustment of the angle of the puncture needle and facilitates the use of the puncture needle.

[0026] like Figure 1 , Figure 4 As shown, a second support plate 15 is movably connected to one side of the fourth hinge 16, a third hinge 14 is movably connected to one side of the second support plate 15, a control box 4 is movably connected to the lower part of the third hinge 14, and a fifth control plate 47 is fixedly connected to the upper side of the control box 4. A fifth control groove is provided on the fifth control plate 47. By adopting the above technical solution, the fourth hinge 16 can rotate around the third hinge 14 via the second support plate 15.

[0027] like Figure 1 , Figure 4As shown, a first support plate 13 is movably connected to one side of the fourth hinge 16, and a second hinge 12 is movably connected to one side of the first support plate 13. A slider 41 is fixedly connected to the lower part of the second hinge 12 and moves within the control box 4. A fifth control rod is fixedly connected to the upper end of one side of the slider 41 and passes through the fifth control slot. A second connecting plate 43 is fixedly connected to the upper end of the fifth control rod. A third spring 44 is fixedly connected to the upper end of the second connecting plate 43. A second pull plate 45 is fixedly connected to one end of the third spring 44. A second pull rod is fixedly connected to the lower part of the second pull plate 45. A second connecting hole is opened in the third spring 44 in the second connecting plate 43, and the second pull rod passes through the second connecting hole. A third control plate 11 is fixedly connected to one side of the control box 4. Several third control holes are equidistantly opened on the third control plate 11, and the second pull rod passes through the outermost third control hole. By adopting the above technical solution, the second pull plate 45 is pulled upward. The second pull plate 45 drives the second pull rod to stop moving within the third control hole, pushing the slider 41 to move within the control box 4. The slider 41 drives the first support plate 13 to move via the second hinge 12. The first support plate 13 pushes the fourth hinge 16 upward. Since one side of the fourth hinge 16 is movably connected to the second support plate 15, and the third hinge 14 connected to one side of the second support plate 15 is fixed, the fourth hinge 16 will only move when the first support plate 13 moves. When the fourth hinge 16 moves to the required height, the second pull plate 45 is released, and the third spring 44 drives the second pull rod on the second pull plate 45 into the third control hole, thus fixing the second pull rod. The fourth hinge 16 is connected to the base plate 22 via the pivot 17 and the fixing block 18. The base plate 22 is connected to the puncture needle fixing assembly. Therefore, the height of the puncture needle fixing assembly can be adjusted after the height of the fourth hinge 16 changes. This setting facilitates the adjustment of the height of the puncture needle.

[0028] like Figure 1 , Figure 3As shown, two second fixed semi-rings 3 are fixedly connected at equal intervals below the control box 4. Two first hinges 2 are fixedly connected at equal intervals below the control box 4, and the two first hinges 2 are respectively located on one side of the two second fixed semi-rings 3. A first fixed semi-ring 1 is movably connected to one side of each of the two first hinges 2. First control plates 5 are fixedly connected to both sides of the lower part of the control box 4, and a first control groove is opened on one side of each of the two first control plates 5. A first control rod passes through and is connected to each of the two first control grooves. A roller 9 is sleeved on the outer circumference of the first control rod. One side of the roller 9 abuts against the two first fixed semi-rings 1. A first baffle 10 is fixedly connected to one end of the first control rod, and a first connecting plate 6 is fixedly connected to the other end of the first control rod. A first connecting hole is opened on one side of the first connecting plate 6. A fixing bolt 8 is fixedly connected to one side of the first connecting hole, and a second control plate 7 is fixedly connected to one side of the control box 4. A first control groove is opened on one side of the second control plate 7, and the fixing bolt 8 passes through the first control groove. By adopting the above technical solution, the ultrasonic probe is inserted between the first hinge 2 and the second hinge 12. The fixing bolt 8 is removed, and the first connecting plate 6 is pushed. The first connecting plate 6 drives the first control rod to move along the first control groove on the first control plate 5. The first control rod drives the roller 9 to move. The roller 9 pushes the first hinge 2 to rotate around the first hinge 2 as the axis until the first hinge 2 and the second hinge 12 clamp the ultrasonic probe and fix the fixing bolt 8 through the first control groove and the first connecting hole on the first connecting plate 6. This setting facilitates the fixation of the puncture needle.

[0029] like Figures 1-2 , Figure 6 As shown, the puncture needle fixing assembly includes a fixing box 34, and a base plate 22 is fixedly connected to the bottom of the fixing box 34. A liquid reservoir 35 is movable inside the fixing box 34. A push rod 38 is movably connected to one side of the liquid reservoir 35. A fifth hinge 39 is fixedly connected to the upper side of one side of the fixing box 34. A locking plate 40 is movably connected to one side of the fifth hinge 39. The push rod 38 is locked on one side of the locking plate 40. A first locking hole is opened on one side of the locking plate 40, and a second locking hole is opened on one side of the fixing box 34. A connecting bolt passes through the first locking hole and the second locking hole. By adopting the above technical solution, the connecting bolt can be removed, and the locking plate 40 can be rotated until the locking plate 40 no longer locks the push rod 38. At this time, the liquid reservoir 35 can be removed. This setting facilitates the disassembly of the liquid reservoir 35.

[0030] like Figures 1-2 , Figure 6As shown, the puncture needle fixation assembly also includes a fixing bracket 26, with a turntable 25 fixedly connected to the lower part of the fixing bracket 26. Two second springs 27 are fixedly connected to the two inner walls of the fixing bracket 26, and a locking block 28 is fixedly connected to one end of each of the two second springs 27. A fixing cylinder 32 is engaged between the two locking blocks 28, and a limiting block 31 is engaged above the two locking blocks 28. A limiting hole is formed above the limiting block 31, and a control bolt 29 is fitted into the limiting hole. A fixing hole is formed above the fixing bracket 26, and the control bolt 29 passes through the fixing hole. A puncture tube 33 is movably connected inside the fixed cylinder 32. One end of the liquid storage cylinder 35 is movably connected to a connecting tube 36, and one end of the connecting tube 36 is movably connected to the fixed cylinder 32. The connecting tube 36 communicates with the internal space of the puncture tube 33. By adopting the above technical solution, the control bolt 29 is rotated outward until the control bolt 29 no longer abuts against the limiting block 31, and the limiting block 31 no longer engages with the locking block 28. Under the action of the second spring 27, the locking blocks 28 move away from each other, and the locking blocks 28 no longer engage with the fixed cylinder 32. At this time, the fixed cylinder 32 and the puncture tube 33 can be removed.

[0031] It should be noted that, during use, the ultrasonic probe is inserted between the first hinge 2 and the second hinge 12, the fixing bolt 8 is removed, the first connecting plate 6 is pushed, the first connecting plate 6 drives the first control rod to move along the first control groove on the first control plate 5, the first control rod drives the roller 9 to move, and the roller 9 pushes the first hinge 2 to rotate around the first hinge 2 as the axis until the first hinge 2 and the second hinge 12 clamp the ultrasonic probe, and the fixing bolt 8 is fixed through the first control groove and the first connecting hole on the first connecting plate 6, thus completing the fixation of the puncture needle.

[0032] When the height of the puncture needle needs to be adjusted, pull the second pull plate 45 upwards until the second pull plate 45 drives the second pull rod to stop moving in the third control hole. This pushes the slider 41 to move in the control box 4. The slider 41 drives the first support plate 13 to move through the second hinge 12. The first support plate 13 pushes the fourth hinge 16 upwards. Since one side of the fourth hinge 16 is movably connected to the second support plate 15, and the third hinge 14 connected to one side of the second support plate 15 is fixed, the fourth hinge 16 will only move when the first support plate 13 moves. When the fourth hinge 16 moves to the required height, release the second pull plate 45. The third spring 44 drives the second pull rod on the second pull plate 45 into the third control hole, thus fixing the second pull rod. The fourth hinge 16 is connected to the base plate 22 through the pivot 17 and the fixing block 18. The base plate 22 is connected to the puncture needle fixing assembly. Therefore, the height of the puncture needle can be adjusted by changing the height of the fourth hinge 16, thus completing the adjustment of the puncture needle height.

[0033] When the angle of the puncture needle needs to be adjusted, remove the mounting bolts and rotate the base plate 22. Since the bottom of the base plate 22 is connected to the rotating shaft 17 through the fixing block 18, the base plate 22 can rotate around the rotating shaft 17. The base plate 22 drives the fourth control plate 20 to rotate until the required second mounting hole is aligned with the first mounting hole. Then, fix the mounting bolts through the second mounting hole and the first mounting hole to complete the angle adjustment of one plane of the puncture needle fixing assembly. Pull down the first pull plate 23 until the first pull plate 23 drives the first pull rod until the first pull rod no longer moves in the limiting groove. Rotate the turntable 25 until it reaches the required angle. Release the first pull plate 23. The first spring 24 drives the first pull rod upward through the first pull plate 23 and enters the limiting groove to complete the angle adjustment of the other plane of the puncture needle fixing assembly.

[0034] When it is necessary to remove the liquid storage cylinder 35, remove the connecting bolts and rotate the clamping plate 40 until the clamping plate 40 no longer engages the push rod 38. At this point, the liquid storage cylinder 35 can be removed.

[0035] When it is necessary to remove the puncture tube 33, turn the control bolt 29 outward until the control bolt 29 no longer abuts against the limit block 31, the limit block 31 no longer locks against the locking block 28, and under the action of the second spring 27, the locking blocks 28 move away from each other and the locking blocks 28 no longer lock against the fixing cylinder 32. At this time, the fixing cylinder 32 and the puncture tube 33 can be removed.

[0036] When in use, insert the puncture tube 33 into the body part to be inserted, push the push rod 38, and the medicine in the reservoir 35 can enter the puncture tube 33 through the connecting tube 36, and the medicine enters the body part through the puncture tube 33.

[0037] This invention provides an adjustable angle puncture needle, which solves the problems of existing puncture needles being inconvenient to adjust the angle, height, and fixation during use, making them more practical.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable puncture needle, characterized by: The utility model provides a kind of puncture needle fixing assembly, including bottom plate (22), the lower side of bottom plate (22) is fixedly connected with fixed block (18), the lower side of two fixed block (18) is fixedly connected with rotating shaft (17), the outside of rotating shaft (17) is sleeved with fourth hinge (16), one side of fourth hinge (16) is fixedly connected with mounting plate, first mounting hole is opened in one side of mounting plate, mounting bolt is movably arranged in mounting hole, one side of bottom plate (22) is fixedly connected with fourth control plate (20), a plurality of second installation holes are opened in fourth control plate (20) along circumference, and mounting bolt passes through the second installation hole of lower end, one side of bottom plate (22) is fixedly connected with first spring (24), one end of first spring (24) is fixedly connected with first pull plate (23), one side of first pull plate (23) is fixedly connected with first pull rod, first through hole is opened in the inside of first spring (24) of bottom plate (22), and first pull rod passes through first through hole, the upper side of bottom plate (22) is fixedly connected with rotating disc fixed plate, rotating disc (25) is sleeved in the upper side of rotating disc fixed plate, a plurality of limit grooves are opened in the lower side of rotating disc (25) along circumference, one end of first pull rod is sleeved in one limit groove of outermost end, the upper side of rotating disc (25) is provided with puncture needle fixing assembly; One side of fourth hinge (16) is movably connected with second support plate (15), one side of second support plate (15) is movably connected with third hinge (14), the lower side of third hinge (14) is movably connected with control box (4), one side of the upper side of control box (4) is fixedly connected with fifth control plate (47), fifth control groove is opened in fifth control plate (47); One side of fourth hinge (16) is movably connected with first support plate (13), one side of first support plate (13) is movably connected with second hinge (12), the lower side of second hinge (12) is fixedly connected with sliding block (41), and sliding block (41) is movably arranged in control box (4), one side of the upper end of sliding block (41) is fixedly connected with fifth control rod, and fifth control rod passes through fifth control groove, the upper end of fifth control rod is fixedly connected with second connecting plate (43), the upper end of second connecting plate (43) is fixedly connected with third spring (44), one end of third spring (44) is fixedly connected with second pull plate (45), the lower side of second pull plate (45) is fixedly connected with second pull rod, second connecting hole is opened in the third spring (44) of second connecting plate (43), and second pull rod passes through second connecting hole, one side of control box (4) is fixedly connected with third control plate (11), a plurality of third control holes are equidistantly opened in third control plate (11), and second pull rod passes through the third control hole of outermost side; The puncture needle fixing assembly includes a fixing box (34), and the lower end of the fixing box (34) is fixedly connected with a bottom plate (22), a liquid storage cylinder (35) is movably arranged in the fixing box (34), one side of the liquid storage cylinder (35) is movably connected with a push rod (38), the upper side of one side of the fixing box (34) is fixedly connected with a fifth hinge (39), one side of the fifth hinge (39) is movably connected with a clamping plate (40), one side of the clamping plate (40) is clamped with the push rod (38), a first clamping hole is formed in one side of the clamping plate (40), a second clamping hole is formed in one side of the fixing box (34), and the first clamping hole and the second clamping hole are connected with a connecting bolt.

2. An angle adjustable puncture needle according to claim 1, wherein: The lower end of the control box (4) is fixedly connected with two second fixed half-rings (3), the lower end of the control box (4) is fixedly connected with two first hinges (2), and the two first hinges (2) are located on the sides of the two second fixed half-rings (3), the sides of the two first hinges (2) are movably connected with first fixed half-rings (1), the lower end of the control box (4) is fixedly connected with first control plates (5) on both sides, first control grooves are formed in the sides of the two first control plates (5), first control rods are connected through the first control grooves, the circumferential outer surfaces of the first control rods are sleeved with rollers (9), the sides of the rollers (9) abut against the two first fixed half-rings (1), the one ends of the first control rods are fixedly connected with first baffles (10), the other ends of the first control rods are fixedly connected with first connecting plates (6), first connecting holes are formed in the sides of the first connecting plates (6), the first connecting holes are fixedly connected with fixed bolts (8) on one side, a second control plate (7) is fixedly connected to one side of the control box (4), a first control groove is formed in the side of the second control plate (7), and the fixed bolt (8) penetrates through the first control groove.

3. The angle adjustable puncture needle according to claim 1, wherein: The puncture needle fixing assembly further includes a fixing support (26), and the lower end of the fixing support (26) is fixedly connected with a rotating disc (25), second springs (27) are fixedly connected to the inner walls of the fixing support (26), the one ends of the two second springs (27) are fixedly connected with clamping blocks (28), a fixing cylinder (32) is clamped between the two clamping blocks (28), limiting blocks (31) are clamped above the two clamping blocks (28), limiting holes are formed in the upper ends of the limiting blocks (31), control bolts (29) are sleeved in the limiting holes, a fixing hole is formed in the upper end of the fixing support (26), the control bolts (29) penetrate through the fixing hole, a puncture tube (33) is movably arranged in the fixing cylinder (32), a connecting tube (36) is movably connected to one end of the liquid storage cylinder (35), the one end of the connecting tube (36) is movably connected with the fixing cylinder (32), and the internal spaces of the connecting tube (36) and the puncture tube (33) are in communication.

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