Drug delivery device with controllable jet dispersion range
By designing an adjustable drug delivery device, the problem of targeted delivery of drugs in different positions and shapes was solved, achieving precise control of the drug injection angle and shape, and improving treatment efficacy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, the fixed angle of drug delivery devices can easily lead to drug diffusion 'blind spots' or 'overflows', making it impossible to adapt to drug delivery needs in different locations and shapes. In particular, for lesions in cavities, deep tumors, and other non-directly visualized lesions, it is difficult to achieve targeted delivery by adjusting the angle, thus reducing the therapeutic effect.
A drug delivery device with controllable jet dispersion range was designed. The drug injection angle can be adjusted by the adjustment mechanism, the drug can be pre-mixed by the mixing mechanism, and different injection shapes can be changed by the adjustment structure. The device includes the combination of components such as support plate, spline shaft, turntable, sliding tube, rotating plate, mixing tank, bearing, and lever to ensure precise control of the injection direction and shape of the drug.
It enables precise adjustment of the angle and shape of drug spray, ensuring targeted drug delivery, avoiding drug diffusion blind spots, and improving treatment efficacy and medication safety.
Smart Images
Figure CN121623115A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drug delivery technology, specifically to a drug delivery device with controllable jet diffusion range. Background Technology
[0002] Drug delivery devices are a class of equipment designed to deliver drugs accurately, efficiently, and safely to target sites on the human body. They include injectable, oral adjunct, inhalation, transdermal, and implantable forms. Their core functions are to control the drug release rate, target drug delivery, reduce drug administration pain, or improve medication adherence. They are applied in medical scenarios such as prevention, treatment, and diagnosis. By optimizing drug delivery pathways and methods, they aim to improve drug efficacy, reduce side effects, and enhance the patient's medication experience.
[0003] Drug delivery devices with controllable jet diffusion range are a type of specialized medical equipment that delivers drugs in the form of jets. By optimizing nozzle structure, adjusting drug delivery pressure / flow rate, and integrating flow control modules or targeted positioning mechanisms, they can precisely control the diffusion angle, coverage range, and penetration depth of the drug jet. The core advantage is that it avoids waste and tissue damage caused by non-targeted drug diffusion, and achieves focused drug delivery to the lesion area. It is suitable for local treatment and minimally invasive surgical assistance scenarios, and can improve drug efficacy and drug safety at the same time.
[0004] Nozzles can be affected by drug particle deposition and protein adsorption, leading to blockage and flow channel deformation. This is especially true for drugs containing microspheres and nanocarriers, where compatibility is poor. In existing technologies, a "large inlet + gradual contraction" design is used in the flow channel to reduce the flow resistance of high-viscosity drugs and prevent drug retention in the flow channel. However, the fixed angle in existing technologies can easily lead to drug diffusion "blind spots" or "overflows," making it impossible to adapt to the drug delivery needs of different locations and shapes. This is especially true for lesions in cavities, deep tumors, and other non-directly visualized lesions, where it is difficult to achieve targeted delivery by adjusting the angle, thus reducing the therapeutic effect. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a drug delivery device with controllable jet diffusion range. This solves the problem that fixed angles in existing technologies can easily lead to drug diffusion "blind spots" or "overflows," making it impossible to adapt to drug delivery needs in different locations and shapes. In particular, for lesions in cavities, deep tumors, and other non-directly visualized lesions, it is difficult to achieve targeted delivery by adjusting the angle, thus reducing the therapeutic effect.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a drug delivery device with controllable jet diffusion range, comprising a delivery tube, a flow tube disposed inside the delivery tube, a liquid outlet tube connected to the other end of the flow tube, an adjustment mechanism installed on the inner side of the delivery tube for adjusting the drug spray angle, a mixing mechanism disposed at the top of the delivery tube for pre-mixing the drug, and an adjustment structure installed on the outer side of the delivery tube for changing different spray patterns; The adjusting mechanism includes a support plate, which is fixedly connected to the outside of the delivery tube. A spline shaft is rotatably connected to the top of the support plate, and a turntable is fixedly connected to the outside of the spline shaft. A locking groove is provided on the top of the support plate. A sliding tube is slidably connected to the outer periphery of the spline shaft, and the sliding tube is locked inside the locking groove. A rotating plate is fixedly connected to the outside of the spline shaft, and a connecting short column is rotatably connected to the outside of the rotating plate. A connecting round rod is rotatably connected to the bottom of the connecting short column, and a moving rod is rotatably connected to the bottom of the connecting round rod. An installation rod is fixedly connected to the bottom of the moving rod, and a connecting plate is rotatably connected to the bottom of the installation rod. A spherical tube is fixedly connected to the middle of the connecting plate, and a limiting round rod is slidably connected to the outside of the moving rod. The spherical tube is fixedly connected to the outside of the flow tube.
[0007] Preferably, the mixing mechanism includes a mixing tank disposed at the top of the delivery tube. A bearing is rotatably connected to the outside of the mixing tank, and a lever is fixedly connected to the outside of the bearing. A locking plate is installed on the outside of the bearing, and a rotating circular plate is fixedly connected to the other side of the bearing. A rotating rod is fixedly connected to the outside of the rotating circular plate, and multiple mixing blades are fixedly connected at equal intervals to the outside of the rotating rod. An inlet pipe is connected to the top of the mixing tank.
[0008] Preferably, the adjusting structure includes a liquid outlet plate, which is fixedly connected to the inner side of the liquid outlet pipe. A rotating plate is rotatably connected to the other end of the liquid outlet pipe. A gear ring is fixedly connected to the outer side of the rotating plate. A mounting plate is fixedly connected to the outer side of the liquid outlet pipe. A drive gear is rotatably connected to one side of the mounting plate. A rotating short rod is rotatably connected to the other side of the mounting plate. The drive gear is fixedly connected to one end of the rotating short rod. A rotating plate is fixedly connected to the outer side of the rotating short rod. A first spring is fixedly connected to the outer side of the mounting plate. A limit rod is fixedly connected to the bottom of the first spring.
[0009] Preferably, a turbine is installed on the inner side of the outlet pipe, and a flow pipe is connected to the other side of the flow pipe.
[0010] Preferably, a collection tank is fixedly connected to the inner side of the delivery tube, the flow tube is connected to the outer side of the collection tank, and a connecting tube is connected to the top of the collection tank.
[0011] Preferably, a tapered grooved tube is fixedly connected to the inner side of both the connecting tube and the flow circular tube, and a movable ball is provided on the other side of the tapered grooved tube.
[0012] Preferably, the top of the connecting pipe is connected to a serrated channel pipe, and a support rod is fixedly connected to the inside of the connecting pipe and the flow circular pipe.
[0013] Preferably, the delivery tube is provided with a top cover, which engages with the top of the inlet tube.
[0014] Preferably, a screw cap is threaded to one side of the delivery tube, and a fixed circular plate is fixedly connected to the inner side of the delivery tube.
[0015] Preferably, a drive plate is slidably connected to the middle of the fixed circular plate, and the other end of the drive plate passes through the fixed circular plate and is fixedly connected to a piston. The piston is slidably connected inside the collection tank, and a second spring is fixedly connected to the other side of the piston. The other end of the second spring is fixedly connected to one end of the fixed circular plate.
[0016] This invention provides a drug delivery device with controllable jet dispersion range. It has the following beneficial effects: 1. This invention rotates the turntable to drive the spline shaft and the rotating plate to rotate, and drives the connecting rod to move through the connecting short column. This causes the moving rod to move the connecting plate through the mounting rod, thereby adjusting the position of the spherical tube to change the spray angle of the internal flow tube. After adjustment, the sliding tube is locked into the locking groove to lock the turntable, ensuring the angle is stable and achieving precise control of the spray direction.
[0017] 2. In this invention, the liquid medicine enters the mixing tank through the inlet pipe. The manual rotation of the lever drives the bearing and the rotating disc, which in turn drives the rotating rod and multiple mixing blades to continuously stir the liquid medicine, making the liquid medicine evenly mixed. The mixed liquid medicine flows into the delivery pipe from the serrated channel at the bottom of the tank for spraying. When not in operation, the top cover and the inlet pipe are locked together to keep the inside of the tank clean and sealed.
[0018] 3. When changing the spray shape, the rotating plate is turned to drive the rotating short rod and the drive gear to rotate. Through meshing with the gear ring, the rotating groove plate is driven to rotate at the end of the liquid outlet pipe. The relative position of the grooves on the rotating groove plate and the liquid outlet plate changes accordingly, forming different jet paths, thereby changing the dispersion pattern of the liquid after it is sprayed out. After adjustment, the spring presses the limit rod and engages with the rotating plate to ensure that the jet shape is stable and adjustable. Attached Figure Description
[0019] Figure 1This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a structural breakdown diagram of the present invention; Figure 4 This is a partial structural cross-sectional view of the present invention; Figure 5 This is a cross-sectional view of the collection tank structure of the present invention; Figure 6 This is a partial structural diagram of the present invention; Figure 7 This is a cross-sectional view of the hybrid mechanism of the present invention; Figure 8 This is a partial structural breakdown diagram of the present invention; Figure 9 This is a partial structural illustration of the present invention.
[0020] Among them, 1. Delivery tube; 2. Adjustment mechanism; 21. Spherical tube; 22. Connecting plate; 23. Support plate; 24. Engaging groove; 25. Sliding tube; 26. Turntable; 27. Splined shaft; 28. Rotating plate; 29. Connecting short column; 210. Connecting round rod; 211. Moving rod; 212. Mounting rod; 213. Limiting round rod; 3. Adjustment structure; 31. Rotating trough plate; 32. Liquid outlet trough plate; 33. Gear ring; 34. Rotating plate; 35. Drive gear; 36. Rotating short rod; 37. First spring; 38. Mounting plate; 3 9. Limiting rod; 4. Mixing mechanism; 41. Mixing tank; 42. Rotating rod; 43. Mixing blade; 44. Inlet pipe; 45. Rotating circular plate; 46. Bearing; 47. Locking plate; 48. Actuating rod; 5. Flow pipe; 6. Outlet pipe; 7. Turbine; 8. Piston; 9. Serpentine channel pipe; 10. Connecting pipe; 11. Drive plate; 12. Collection tank; 13. Flow circular pipe; 14. Conical groove pipe; 15. Moving ball; 16. Support rod; 17. Screw cap; 18. Second spring; 19. Fixed circular plate; 20. Top cover. Detailed Implementation
[0021] The technical solutions in 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.
[0022] Reference Figure 1 , Figure 3 , Figure 4 and Figure 6This invention provides a drug delivery device with controllable jet diffusion range, including a delivery tube 1, a flow tube 5 inside the delivery tube 1, and an outlet tube 6 connected to the other end of the flow tube 5. An adjustment mechanism 2 is installed on the inner side of the delivery tube 1 for adjusting the drug spray angle. A mixing mechanism 4 is installed on the top of the delivery tube 1 for pre-mixing the drug. An adjustment structure 3 is installed on the outer side of the delivery tube 1 for changing different spray shapes. The adjusting mechanism 2 includes a support plate 23, which is fixedly connected to the outside of the delivery tube 1. A splined shaft 27 is rotatably connected to the top of the support plate 23, and a turntable 26 is fixedly connected to the outside of the splined shaft 27. A locking groove 24 is provided on the top of the support plate 23, and a sliding tube 25 is slidably connected to the outer periphery of the splined shaft 27. Through the installation of the splined shaft 27 and the sliding tube 25, the turntable 26 can be locked and fixed. The sliding tube 25 is locked inside the locking groove 24. A rotating plate 28 is fixedly connected to the outside of the splined shaft 27, and the outer side of the rotating plate 28 is rotatably connected to... A connecting short column 29 is connected, and a connecting round rod 210 is rotatably connected to the bottom of the connecting short column 29. A moving rod 211 is rotatably connected to the bottom end of the connecting round rod 210. An installation rod 212 is fixedly connected to the bottom of the moving rod 211. A connecting plate 22 is rotatably connected to the bottom of the installation rod 212. A spherical tube 21 is fixedly connected to the middle of the connecting plate 22. A limiting round rod 213 is slidably connected to the outside of the moving rod 211. By installing the limiting round rod 213, the spherical tube 21 can move more stably. The spherical tube 21 is fixedly connected to the outside of the flow tube 5. A collection tank 12 is fixedly connected to the inner side of the delivery tube 1. A flow circular tube 13 connects to the outer side of the collection tank 12. A connecting tube 10 connects to the top of the collection tank 12. A tapered groove tube 14 is fixedly connected to the inner side of both the connecting tube 10 and the flow circular tube 13. A movable ball 15 is provided on the other side of the tapered groove tube 14. A drive plate 11 is slidably connected to the middle of the fixed circular plate 19. The other end of the drive plate 11 passes through the fixed circular plate 19 and is fixedly connected to a piston 8. The piston 8 is slidably connected inside the collection tank 12. A second spring 18 is fixedly connected to the other side of the piston 8. The other end of the second spring 18... The piston 8 is fixedly connected to one end of the fixed circular plate 19. When the liquid medicine is drawn, the piston 8 moves by pulling the drive plate 11. At this time, the moving ball 15 in the flow circular tube 13 moves to the right and blocks the conical groove tube 14. The moving ball 15 in the connecting tube 10 falls to the top of the support rod 16. The liquid medicine enters the collection tank 12 and pushes the drive plate 11. The moving ball 15 in the connecting tube 10 is affected by the pressure and contacts the conical groove tube 14 at its top and blocks the connecting tube 10. The moving ball 15 in the flow circular tube 13 moves to the left. At this time, the conical groove tube 14 is not blocked and the liquid medicine flows out. Specifically, by manually rotating the turntable 26, the splined shaft 27 connected to it rotates synchronously, causing the rotating plate 28 fixed on the splined shaft 27 to rotate accordingly. The rotating plate 28 is connected to the connecting rod 210 through the connecting short column 29, thereby driving the connecting rod 210 to rotate and move axially. This causes the moving rod 211 to be connected to the connecting plate 22 through the mounting rod 212, thereby driving the connecting plate 22 to move smoothly. Under the guidance and support of the limiting rod 213, the movement of the connecting plate 22 is more stable, avoiding deviation or jamming. Through the above process, the spatial position of the spherical tube 21 is adjusted, thereby changing the spray direction of the flow pipe 5 installed inside it, achieving the effect of adjusting the spray angle of the liquid medicine. After the angle adjustment is completed, the sliding tube 25 is pushed into and locked in the locking groove 24 to form a lock, preventing the turntable 26 from rotating or loosening accidentally, thereby ensuring the stability and controllability of the spray angle of the liquid medicine.
[0023] Reference Figure 1 , Figure 2 and Figure 7 The mixing mechanism 4 includes a mixing tank 41, which is located on top of the delivery pipe 1. A bearing 46 is rotatably connected to the outside of the mixing tank 41. A lever 48 is fixedly connected to the outside of the bearing 46. A locking plate 47 is installed on the outside of the bearing 46. A rotating circular plate 45 is fixedly connected to the other side of the bearing 46. A rotating rod 42 is fixedly connected to the outside of the rotating circular plate 45. The installation of the bearing 46 enables the rotating rod 42 to rotate continuously. Multiple mixing blades 43 are fixedly connected at equal intervals to the outside of the rotating rod 42. The top of the mixing tank 41 is connected to an inlet pipe 44. The top of the connecting pipe 10 is connected to a serrated channel pipe 9. A support rod 16 is fixedly connected inside the connecting pipe 10 and the flow circular pipe 13. A top cover 20 is provided on the top of the delivery pipe 1. The top cover 20 is locked onto the top of the inlet pipe 44. The installation of the top cover 20 prevents contaminants from entering or the liquid from evaporating. Specifically, the liquid medicine flows into the mixing tank 41 through the inlet pipe 44. The operator manually rotates the lever 48, which drives the bearing 46 to rotate. The installation of the locking plate 47 makes the maintenance and repair of the bearing 46 more convenient and enhances the stability of operation. As the bearing 46 rotates, the rotating disc 45 starts to rotate synchronously and drives the rotating rod 42 to rotate together. Multiple mixing blades 43 stir the liquid medicine in the mixing tank 41, so that the liquid medicine can be mixed evenly. After the mixing process is completed, the liquid medicine flows into the delivery pipe 1 through the serrated channel pipe 9, which facilitates the subsequent process. When the equipment is not in use, the top cover 20 locks with the inlet pipe 44 to achieve a seal, maintain the sealed environment inside the mixing tank 41, and prevent contaminants from entering or the liquid medicine from evaporating.
[0024] Reference Figure 5 , Figure 8 and Figure 9The adjusting structure 3 includes a liquid outlet plate 32, which is fixedly connected to the inner side of the liquid outlet pipe 6. The other end of the liquid outlet pipe 6 is rotatably connected to a rotating plate 31. A gear ring 33 is fixedly connected to the outer side of the rotating plate 31. An installation plate 38 is fixedly connected to the outer side of the liquid outlet pipe 6. A drive gear 35 is rotatably connected to one side of the installation plate 38. A rotating short rod 36 is rotatably connected to the other side of the installation plate 38. The drive gear 35 is fixedly connected to one end of the rotating short rod 36. A rotating plate 34 is fixedly connected to the outer side of the rotating short rod 36. A first spring 37 is fixedly connected to the outer side of the installation plate 38. A limit rod 39 is fixedly connected to the bottom of the first spring 37. A turbine 7 is installed inside the liquid outlet pipe 6. The installation of the turbine 7 increases the flow rate of the liquid. A flow circular pipe 13 is connected to the other side of the flow pipe 5. A cap 17 is threadedly connected to one side of the delivery pipe 1. A fixed circular plate 19 is fixedly connected to the inner side of the delivery pipe 1. The installation of the cap 17 prevents dirt from entering when not in use. Specifically, when it is necessary to change the spray pattern of the liquid, the rotating plate 34 is turned, which drives the rotating short rod 36 and the drive gear 35 to rotate together. The drive gear 35 meshes with the gear ring 33, thereby driving the rotating groove plate 31 to rotate at the end of the outlet pipe 6. Since the rotating groove plate 31 has slots with a specific pattern, when it rotates, the relative positions of these slots and the corresponding slots on the outlet groove plate 32 will change. Different combinations and alignment methods of the two form different jet paths, thereby changing the dispersion shape of the liquid after it is ejected. During the adjustment process, the first spring 37 applies pressure to the limiting rod 39, so that the limiting rod 39 engages with the outer side of the rotating plate 34, so as to provide positioning and fixation when it is rotated into place, ensuring the stability of the spray pattern. Through the above process, when the liquid flows out from the flow pipe 5 through the outlet pipe 6, its jet pattern can be controllably changed.
[0025] Working principle: Rotating the turntable 26 drives the spline shaft 27 to rotate, causing the rotating plate 28 to rotate accordingly. The connecting short column 29 drives the connecting round rod 210 to rotate and move, which in turn causes the moving rod 211 to drive the connecting plate 22 to move via the mounting rod 212. With the installation of the limiting round rod 213, the connecting plate 22 can move stably, thereby adjusting the position of the ball tube 21 and changing the orientation of the internal flow tube 5, thus adjusting the spray angle. After adjustment, the sliding tube 25 is engaged in the engaging groove 24 to prevent unnecessary rotation of the turntable 26, thereby achieving precise adjustment of the liquid spray angle. The liquid medicine enters the mixing tank 41 through the inlet pipe 44. The manual rotation of the lever 48 drives the bearing 46 to rotate. The installation of the locking plate 47 facilitates the maintenance of the bearing 46 and keeps it stable, thereby driving the rotating disc 45 to rotate. The rotating rod 42 rotates accordingly. Multiple mixing blades 43 continuously stir the liquid medicine in the mixing tank 41 to achieve full and uniform mixing. After mixing, the liquid medicine flows from the serrated channel pipe 9 at the bottom of the mixing tank 41 into the delivery pipe 1 for subsequent spraying. When not in use, the top cover 20 is locked and sealed with the inlet pipe 44 to maintain the airtightness of the mixing tank 41. When it is necessary to change the spray pattern of the liquid, the rotating plate 34 is turned, which drives the rotating short rod 36 and the drive gear 35 to rotate together. The drive gear 35 meshes with the gear ring 33, thereby driving the rotating groove plate 31 to rotate at the end of the outlet pipe 6. Since the rotating groove plate 31 has a specific pattern of slots, when it rotates, these slots and the corresponding slots on the outlet groove plate 32 will change relative positions. Different combinations and alignment methods of the two form different jet paths, thereby changing the dispersion shape of the liquid after it is ejected. During the adjustment process, the first spring 37 applies pressure to the limiting rod 39, so that the limiting rod 39 is engaged with the outer side of the rotating plate 34 to provide positioning and fixation when it is rotated into place, ensuring the stability of the spray pattern. Through the above process, the jet pattern of the liquid can be controllably changed when it flows out of the flow pipe 5 through the outlet pipe 6.
[0026] 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 drug delivery device with controllable jet dispersion range, comprising a delivery tube (1), characterized in that, The inside of the delivery pipe (1) is provided with a flow pipe (5), the other end of the flow pipe (5) is communicated with a liquid outlet pipe (6), the inside of the delivery pipe (1) is provided with an adjusting mechanism (2) for adjusting the liquid injection angle, the top of the delivery pipe (1) is provided with a mixing mechanism (4) for pre-mixing the liquid, the outside of the delivery pipe (1) is provided with an adjusting structure (3) for replacing different injection shapes. The adjusting mechanism (2) comprises a supporting plate (23) fixedly connected to the outside of the delivery pipe (1), a spline shaft (27) rotatably connected to the top of the supporting plate (23), a rotating disc (26) fixedly connected to the outside of the spline shaft (27), a clamping groove (24) formed in the top of the supporting plate (23), a sliding pipe (25) slidably connected to the outer periphery of the spline shaft (27), the sliding pipe (25) clamped in the inside of the clamping groove (24), a rotating plate (28) fixedly connected to the outside of the spline shaft (27), a connecting stub (29) rotatably connected to the outside of the rotating plate (28), a connecting round rod (210) rotatably connected to the bottom of the connecting stub (29), a moving rod (211) rotatably connected to the bottom end of the connecting round rod (210), an installation rod (212) fixedly connected to the bottom of the moving rod (211), a connecting plate (22) rotatably connected to the bottom of the installation rod (212), a spherical pipe (21) fixedly connected to the outside of the flow pipe (5).
2. The fluidic dispersion range controllable drug delivery device according to claim 1, wherein, The mixing mechanism (4) comprises a mixing tank (41) arranged at the top of the delivery pipe (1), a bearing (46) rotatably connected to the outside of the mixing tank (41), a poking rod (48) fixedly connected to the outside of the bearing (46), a clamping plate (47) mounted on the outside of the bearing (46), a rotating disc (45) fixedly connected to the other side of the bearing (46), a rotating rod (42) fixedly connected to the outside of the rotating disc (45), a plurality of mixing blades (43) equidistantly fixedly connected to the outside of the rotating rod (42), and a liquid inlet pipe (44) communicated with the top of the mixing tank (41).
3. The fluidic dispersion range controllable drug delivery device according to claim 1, wherein, The adjusting structure (3) includes a liquid outlet groove plate (32) fixedly connected to the inner side of the liquid outlet pipe (6), the other end of the liquid outlet pipe (6) is rotatably connected with a rotating groove plate (31), the outer side of the rotating groove plate (31) is fixedly connected with a gear ring (33), the outer side of the liquid outlet pipe (6) is fixedly connected with a mounting plate (38), one side of the mounting plate (38) is rotatably connected with a driving gear (35), the other side of the mounting plate (38) is rotatably connected with a rotating short rod (36), the driving gear (35) is fixedly connected to one end of the rotating short rod (36), the outer side of the rotating short rod (36) is fixedly connected with a rotating plate (34), the outer side of the mounting plate (38) is fixedly connected with a first spring (37), and the bottom of the first spring (37) is fixedly connected with a limiting rod (39).
4. The fluidic dispersion range controllable drug delivery device according to claim 1, wherein, The inner side of the liquid outlet pipe (6) is provided with a turbine (7), and the other side of the flow pipe (5) is communicated with a flow circular pipe (13).
5. The fluidically dispersed range controllable drug delivery device according to claim 4, characterized in that The inner side of the delivery pipe (1) is fixedly connected with a collecting tank (12), the flow circular pipe (13) is communicated outside the collecting tank (12), and the top of the collecting tank (12) is communicated with a connecting pipe (10).
6. A fluidically dispersed range controllable drug delivery device according to claim 4 or 5, characterized in that The inner side of the connecting pipe (10) and the flow circular pipe (13) are fixedly connected with a conical groove pipe (14), and the other side of the conical groove pipe (14) is provided with a moving ball (15).
7. The fluidically dispersed range controllable drug delivery device according to claim 6, characterized in that The top of the connecting pipe (10) is communicated with a serpentine sawtooth channel pipe (9), and the connecting pipe (10) and the flow circular pipe (13) are fixedly connected with a supporting rod (16).
8. The fluidically dispersed range controllable drug delivery device according to claim 2, characterized in that The top of the delivery pipe (1) is provided with a top cover (20), and the top cover (20) is clamped on the top of the liquid inlet pipe (44).
9. The fluidically dispersed range controllable drug delivery device according to claim 1, characterized in that One side of the delivery pipe (1) is threadedly connected with a screw cap (17), and the inner side of the delivery pipe (1) is fixedly connected with a fixed circular plate (19).
10. The fluidically dispersed range controllable drug delivery device according to claim 5 or 9, characterized in that The middle part of the fixed circular plate (19) is slidably connected with a driving plate (11), the other end of the driving plate (11) penetrates through the fixed circular plate (19) and is fixedly connected with a piston (8), the piston (8) is slidably connected in the inner part of the collecting tank (12), the other side of the piston (8) is fixedly connected with a second spring (18), and the other end of the second spring (18) is fixedly connected to one end of the fixed circular plate (19).