A clinical drug delivery rate control device

Abstract

The application discloses a clinical medicine delivery speed control equipment, and particularly relates to the technical field of medical devices, which comprises an equipment support, a delivery control mechanism is arranged on the top of the equipment support, a medicine delivery part is arranged at the bottom end of the delivery control mechanism, an auxiliary mechanism is arranged at the bottom of the equipment support, a driving mechanism is arranged on the top of the equipment support and used in cooperation with the delivery control mechanism, a protective cover is fixedly installed on one side of the equipment support close to the driving mechanism, a protective frame is hingedly installed on the side of the equipment support away from the protective cover, and an observation window is fixedly installed on the protective frame. Through the arrangement of the delivery control mechanism, the driving mechanism and the medicine delivery part are used in cooperation, the piston shaft, the piston disc and the piston sleeve can be driven to slowly and uniformly move downwards, small-dose medicine in the medicine storage needle tube can be automatically input into the extension pipe at a slow and uniform speed, and the patient can be slowly and uniformly injected intravenously.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a clinical drug delivery rate control device. Background Technology

[0002] CAR-T therapy, or chimeric antigen receptor T-cell immunotherapy, is a novel precision targeted therapy for treating tumors. When using CAR-T therapy to treat tumors, drugs need to be injected. During the injection, clinical drug delivery rate control equipment is used to control the drug injection rate to ensure that patients can receive the drug treatment correctly as advised by their doctors. These devices usually include infusion pumps, drug injection pumps, etc. By setting specific parameters, the delivery rate and dosage of the drugs can be controlled, which helps to improve the accuracy and safety of drug treatment and avoid the occurrence of drug overdose or underdose.

[0003] However, most existing clinical drug delivery rate control devices can control the delivery rate of large doses of drugs. For some small doses of drugs, such as 3 ml of drugs, which are injected slowly over a long period of time, medical personnel usually inject them slowly with a syringe. Manual injection is not precise enough, and medical personnel will become fatigued, which will affect the treatment effect on patients. Therefore, we propose a clinical drug delivery rate control device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a clinical drug delivery rate control device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clinical drug delivery rate control device, comprising a device support, a delivery control mechanism at the top of the device support, a drug delivery component at the bottom of the delivery control mechanism, an auxiliary mechanism at the bottom of the device support, a drive mechanism at the top of the device support that works in conjunction with the delivery control mechanism, a protective cover fixedly installed on the side of the device support near the drive mechanism, a protective frame hinged on the side of the device support away from the protective cover, and an observation window fixedly installed on the protective frame.

[0006] Preferably, the delivery control mechanism includes a drug-storage needle tube and a horizontal sliding frame. A drug-storage needle head is integrally formed at the bottom center of the drug-storage needle tube. The horizontal sliding frame is fixedly installed in the middle of the equipment support. Two symmetrically distributed clamping frames are slidably engaged within the horizontal sliding frame. Anti-slip strips are fixedly installed on opposite sides of each clamping frame. A bidirectional cylinder is fixedly installed in the middle of the horizontal sliding frame. The drive end of the bidirectional cylinder is fixedly installed with the corresponding clamping frame. The drug-storage needle tube is movably engaged between the two clamping frames. A piston disc is provided within the drug-storage needle tube. A piston sleeve is movably fitted onto the outer side of the piston disc. The outer wall of the piston sleeve contacts the inner wall of the drug-storage needle tube. A piston shaft is fixedly installed in the middle of the piston disc. The top of the piston shaft extends beyond the top of the drug-storage needle tube. A push plate is fixedly installed at the top of the piston shaft.

[0007] Preferably, a support frame is provided below the horizontal sliding frame, the top of the drug storage needle is movably engaged with the support frame, and the bottom end of the drug storage needle tube is in contact with the upper surface of the support frame.

[0008] Preferably, the drug delivery device includes an extension tube and a slide. A first connector is fixedly installed at the top of the extension tube, and a second connector is fixedly installed at the bottom of the extension tube. A limiting ring is fixedly sleeved at the bottom of the first connector. The slide is slidably installed in the middle of the device bracket. A first half-frame is fixedly installed at one end of the slide. A second half-frame is provided on the side of the first half-frame away from the slide. A magnetic suction post is integrally formed on the side of the second half-frame close to the first half-frame. The magnetic suction post is movably engaged with the end of the first half-frame. A magnetic block is fixedly engaged at the end of the first half-frame close to the second half-frame. The magnetic suction post and the magnetic block are magnetically connected. The first connector is movably engaged between the first half-frame and the second half-frame. The upper surface of the limiting ring contacts the lower surfaces of the first half-frame and the second half-frame. A telescopic cylinder is provided at the bottom of the slide. The telescopic cylinder is fixedly installed in the device bracket. The drive end of the telescopic cylinder is fixedly installed at the bottom of the slide.

[0009] Preferably, the equipment bracket is fixedly installed with multiple retainers corresponding to the extension tube, and the extension tube is detachably snapped into the multiple retainers.

[0010] Preferably, the auxiliary mechanism includes an auxiliary frame, which is fixedly snapped to the bottom of the equipment bracket. A retaining frame is integrally formed at one end of the auxiliary frame near the extension tube. The extension tube is detachably snapped into the retaining frame. Cavities are formed in the auxiliary frame and the retaining frame. An inlet pipe is integrally formed at the bottom of one end of the auxiliary frame away from the retaining frame, and an outlet pipe is integrally formed at the top of one end of the auxiliary frame away from the retaining frame.

[0011] Preferably, a warm liquid circulation pump mechanism is fixedly installed on the side of the equipment bracket near the auxiliary frame. A first connecting pipe is fixedly installed at the output end of the warm liquid circulation pump mechanism, and the end of the first connecting pipe is fixedly installed with the inlet pipe. A second connecting pipe is fixedly installed at the input end of the warm liquid circulation pump mechanism, and the end of the second connecting pipe is fixedly installed with the outlet pipe.

[0012] Preferably, the driving mechanism includes a rack frame, on which a fixed frame is slidably mounted, the fixed frame being fixedly installed on the top of the equipment bracket, a driving block being fixedly mounted on the top of the rack frame, the driving block being slidably mounted on the top of the equipment bracket, a clamping frame being fixedly mounted on the end of the driving block, the push plate being movably mounted in the clamping frame, a pinion gear being meshed with one side of the rack frame, a first shaft being fixedly mounted in the middle of the pinion gear, the first shaft being rotatably mounted on the equipment bracket, a second shaft being provided below the first shaft, the second shaft being rotatably mounted on the equipment bracket, large gears being fixedly mounted at the ends of both the first and second shafts, the two large gears being meshed together, a medium gear being meshed with the outer side of the large gear at the bottom position, a third shaft being fixedly mounted in the middle of the medium gear, the third shaft being rotatably mounted on the equipment bracket, a worm gear being fixedly mounted on the outer side of the third shaft, and a worm being meshed with the outer side of the worm gear.

[0013] Preferably, a drive motor is fixedly installed on the side of the equipment bracket near the worm gear, and the drive end of the drive motor is fixedly installed on the bottom end of the worm gear.

[0014] Preferably, a handle is fixedly installed on the observation window.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting up an infusion control mechanism and using a drive mechanism and infusion device, the piston shaft, piston disc and piston sleeve can be driven to move slowly and uniformly downwards, so that a small dose of drug in the drug storage needle can be slowly and uniformly automatically injected into the extension tube, and then slowly and uniformly injected into the patient intravenously.

[0017] 2. By setting up an auxiliary mechanism, when slowly injecting small doses of medication, the warm liquid circulation pump mechanism is activated. The warm liquid is introduced into the cavity through the first connecting pipe and the inlet pipe at the output end, and then introduced into the warm liquid circulation pump mechanism through the outlet pipe and the second connecting pipe to circulate the warm liquid in the cavity. This helps to warm the medication in the extension tube, preventing the medication from being injected too cold into the patient and causing discomfort, thereby improving the comfort of the medication injection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structural connection in another state of the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection of some structures in this invention.

[0022] Figure 4 This is a schematic diagram showing the structural connections of the equipment support, transmission control mechanism, and drive mechanism in this invention.

[0023] Figure 5 This is a schematic diagram of the transmission control mechanism in this invention.

[0024] Figure 6 This is a schematic diagram of the drive mechanism in this invention.

[0025] Figure 7 This is a schematic diagram of the drug delivery device in this invention.

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle.

[0027] Figure 9 This is a schematic diagram of the auxiliary mechanism in this invention.

[0028] In the diagram: 1. Equipment support; 2. Delivery control mechanism; 3. Drug delivery component; 4. Auxiliary mechanism; 5. Drive mechanism; 6. Protective cover; 7. Protective frame; 71. Observation window; 8. Handle; 21. Drug storage needle tube; 211. Drug storage needle tip; 22. Horizontal sliding frame; 221. Clamping frame; 222. Anti-slip strip; 223. Two-way cylinder; 23. Piston disc; 231. Piston sleeve; 232. Piston shaft; 24. Push plate; 25. Support frame; 51. Rack frame; 511. Fixing frame; 52. Drive block; 53. Clamping frame; 54. Pinion; 541. First shaft; 55. Second shaft; 5 6. Large gear; 57. Medium gear; 571. Third shaft; 58. Worm gear; 581. Worm; 59. Drive motor; 31. Extension tube; 32. First connector; 321. Second connector; 322. Limiting ring; 33. Slide; 34. First half-frame; 341. Magnetic block; 35. Second half-frame; 351. Magnetic locking post; 36. Telescopic cylinder; 37. Card seat; 41. Auxiliary frame; 42. Card sleeve frame; 401. Cavity; 43. Inlet pipe; 431. Outlet pipe; 44. Warm liquid circulation pump mechanism; 441. First connecting pipe; 442. Second connecting pipe. 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: Figure 1-9 As shown, the present invention provides a clinical drug delivery speed control device, including a device support 1, a delivery control mechanism 2 at the top of the device support 1, a drug delivery component 3 at the bottom of the delivery control mechanism 2, an auxiliary mechanism 4 at the bottom of the device support 1, a drive mechanism 5 at the top of the device support 1 that works in conjunction with the delivery control mechanism 2, a protective cover 6 fixedly installed on the side of the device support 1 near the drive mechanism 5, a protective frame 7 hinged on the side of the device support 1 away from the protective cover 6, an observation window 71 fixedly installed on the protective frame 7, and the protective frame 7 provides protection; a handle 8 is fixedly installed on the observation window 71.

[0031] The delivery control mechanism 2 includes a drug-storage needle tube 21 and a horizontal sliding frame 22. A drug-storage needle head 211 is integrally formed at the bottom center of the drug-storage needle tube 21. The horizontal sliding frame 22 is fixedly installed in the middle of the equipment support 1. Two symmetrically distributed clamping frames 221 are slidably mounted in the horizontal sliding frame 22. Anti-slip strips 222 are fixedly installed on opposite sides of each clamping frame 221. A bidirectional cylinder 223 is fixedly installed in the middle of the horizontal sliding frame 22. The drive end of the bidirectional cylinder 223 is fixedly installed with the corresponding clamping frame 221. The drug-storage needle tube 21 is movably engaged between the two clamping frames 221. 1. Clamping and positioning: A piston disc 23 is provided in the drug storage needle tube 21. A piston sleeve 231 is movably sleeved on the outside of the piston disc 23. The outer wall of the piston sleeve 231 contacts the inner wall of the drug storage needle tube 21. A piston shaft 232 is fixedly installed in the middle of the piston disc 23. The top of the piston shaft 232 extends out of the top of the drug storage needle tube 21. A push plate 24 is fixedly installed at the top of the piston shaft 232. In use, the drug storage needle 211 is inserted into the drug, and the push plate 24 is manually pulled to move the piston shaft 232 and the piston disc 23, so as to draw a small dose of drug into the drug storage needle tube 21.

[0032] A support frame 25 is provided below the horizontal sliding frame 22. The top of the drug storage needle 211 is movably engaged with the support frame 25. The bottom end of the drug storage needle tube 21 is in contact with the upper surface of the support frame 25. The support frame 25 supports the drug storage needle tube 21 and improves the stability of the drug storage needle tube 21.

[0033] The infusion unit 3 includes an extension tube 31 and a slide 33. A first connector 32 is fixedly installed on the top of the extension tube 31. In use, the first connector 32 is fitted onto the outside of the drug storage needle 211 to connect the infusion unit 3 and the infusion control mechanism 2. A second connector 321 is fixedly installed on the bottom of the extension tube 31. The extension tube 31 and the patient's intravenous injection head are connected through the second connector 321. A limiting ring 322 is fixedly fitted on the bottom of the first connector 32.

[0034] The slide block 33 is slidably installed in the middle of the equipment bracket 1. A first half-frame 34 is fixedly installed at one end of the slide block 33. A second half-frame 35 is provided on the side of the first half-frame 34 away from the slide block 33. A magnetic suction post 351 is integrally formed on the side of the second half-frame 35 near the first half-frame 34. The magnetic suction post 351 is movably engaged with the end of the first half-frame 34. A magnetic block 341 is fixedly engaged at the end of the first half-frame 34 near the second half-frame 35. The magnetic suction post 351 and the magnetic block 341 are magnetically connected. The first connector 32 is movably engaged with the first half-frame 34. Between the second half-frame 35, the upper surface of the limiting ring 322 contacts the lower surfaces of the first half-frame 34 and the second half-frame 35, magnetically positioning the first connector 32. The bottom end of the slide 33 is provided with a telescopic cylinder 36, which is fixedly installed in the equipment bracket 1. The drive end of the telescopic cylinder 36 is fixedly installed with the bottom end of the slide 33. In use, the telescopic cylinder 36 is controlled to extend, driving the slide 33 to move the first half-frame 34 and the second half-frame 35 upward, and moving the first connector 32 upward until the first connector 32 is fitted onto the outside of the drug storage needle 211.

[0035] Multiple retaining seats 37 corresponding to the extension tube 31 are fixedly installed on the equipment bracket 1. The extension tube 31 can be detachably snapped into the multiple retaining seats 37. By setting multiple retaining seats 37, the extension tube 31 can be detachably snapped into the multiple retaining seats 37 for positioning and installation.

[0036] The auxiliary mechanism 4 includes an auxiliary frame 41, which is fixedly snapped into the bottom of the equipment bracket 1. A retaining frame 42 is integrally formed at the end of the auxiliary frame 41 near the extension tube 31, and the extension tube 31 is detachably snapped into the retaining frame 42 for auxiliary positioning. A cavity 401 is formed in both the auxiliary frame 41 and the retaining frame 42. An inlet pipe 43 is integrally formed at the bottom of the end of the auxiliary frame 41 away from the retaining frame 42, and an outlet pipe 431 is integrally formed at the top of the end of the auxiliary frame 41 away from the retaining frame 42. A warm liquid circulation pump mechanism 44 is fixedly installed on the side of the equipment bracket 1 near the auxiliary frame 41. A first connecting pipe 441 is fixedly installed at the output end of the warm liquid circulation pump mechanism 44. The end of a connecting pipe 441 is fixedly installed with the inlet pipe 43. The input end of the warm liquid circulation pump mechanism 44 is fixedly installed with a second connecting pipe 442. The end of the second connecting pipe 442 is fixedly installed with the outlet pipe 431. When slowly injecting a small dose of drug, the warm liquid circulation pump mechanism 44 is turned on. The warm liquid is introduced into the cavity 401 through the first connecting pipe 441 and the inlet pipe 43 at the output end, and then into the warm liquid circulation pump mechanism 44 through the outlet pipe 431 and the second connecting pipe 442 to circulate the warm liquid in the cavity 401. This helps to warm the drug in the extension tube 31, preventing the drug from being injected too cold into the patient and causing discomfort, thereby improving the comfort of drug injection.

[0037] The drive mechanism 5 includes a rack frame 51, on which a fixed frame 511 is slidably mounted. The fixed frame 511 is fixedly mounted on the top of the equipment support 1, which facilitates the vertical sliding of the rack frame 51 on the fixed frame 511. A drive block 52 is fixedly mounted on the top of the rack frame 51, and the drive block 52 is slidably mounted on the top of the equipment support 1. A clamping frame 53 is fixedly mounted on the end of the drive block 52, and the push plate 24 is movably mounted in the clamping frame 53.

[0038] A pinion 54 is meshed with one side of the rack frame 51. A first shaft 541 is fixedly mounted in the middle of the pinion 54 and rotatably mounted on the equipment bracket 1. A second shaft 55 is located below the first shaft 541 and rotatably mounted on the equipment bracket 1. Large gears 56 are fixedly mounted at the ends of both the first shaft 541 and the second shaft 55, and the two large gears 56 mesh with each other. A medium gear 57 is meshed with the outer side of the large gear 56 at the bottom position. A third shaft 571 is fixedly mounted in the middle of the medium gear 57 and rotatably mounted on the equipment bracket 1. A worm gear 58 is fixedly mounted on the outer side of the third shaft 571, and a worm 581 is meshed with the outer side of the worm gear 58. A drive motor 59 is fixedly mounted on the equipment bracket 1 near the worm 581. The drive end of the drive motor 59 and the bottom end of the worm gear 581 are fixedly installed. When the drug is slowly injected, the drive motor 59 is turned on to drive the worm gear 581 to rotate at a constant speed, which drives the worm wheel 58 and the third shaft 571 to rotate at a constant speed. This drives the middle gear 57 to drive the large gear 56 at the bottom position and the second shaft 55 to rotate at a constant speed. This drives the large gear 56 at the top position, the first shaft 541 and the small gear 54 to rotate at a constant speed. This drives the rack frame 51 to move down at a constant speed, which drives the drive block 52, the clamping frame 53 and the push plate 24 to move down at a constant speed. This drives the piston shaft 232, the piston plate 23 and the piston sleeve 231 to move down at a constant speed. The small dose of drug in the drug storage needle tube 21 is slowly and evenly automatically fed into the extension tube 31 and slowly and evenly injected into the patient intravenously.

[0039] Working principle: When in use, insert the drug storage needle 211 into the drug, manually pull the push plate 24 to drive the piston shaft 232 and piston plate 23 to move, and draw a small dose of drug into the drug storage needle tube 21;

[0040] Subsequently, the top of the drug storage needle 211 is movably attached to the support frame 25, and the bottom end of the drug storage needle tube 21 contacts the upper surface of the support frame 25. At the same time, the drug storage needle tube 21 is inserted between the two clamping frames 221, and the bidirectional cylinder 223 is controlled to extend and retract in opposite directions, so that the anti-slip strip 222 contacts the outer wall of the drug storage needle tube 21, thereby clamping and positioning the drug storage needle tube 21.

[0041] Subsequently, the first connector 32 is movably snapped between the first half-frame 34 and the second half-frame 35, and the upper surface of the limiting ring 322 contacts the lower surface of the first half-frame 34 and the second half-frame 35 to magnetically position the first connector 32.

[0042] Subsequently, the telescopic cylinder 36 is extended, driving the slide block 33 to move the first half-frame 34 and the second half-frame 35 upward, which in turn moves the first connector 32 upward until the first connector 32 is fitted onto the outside of the drug storage needle 211, connecting the drug delivery component 3 and the delivery control mechanism 2, and connecting the extension tube 31 and the patient's intravenous injection head through the second connector 321.

[0043] Subsequently, the extension tube 31 is detachably snapped into multiple card holders 37 for positioning and installation, and the extension tube 31 is detachably snapped into the card sleeve frame 42 for auxiliary positioning.

[0044] Subsequently, a small dose of medication is slowly injected. The drive motor 59 is activated to drive the worm gear 581 to rotate at a constant speed, which in turn drives the worm wheel 58 and the third shaft 571 to rotate at a constant speed. This drives the middle gear 57 to drive the large gear 56 at the bottom position and the second shaft 55 to rotate slowly and at a constant speed. This, in turn, drives the large gear 56 at the top position, the first shaft 541, and the small gear 54 to rotate slowly and at a constant speed. This causes the rack frame 51 to move slowly and at a constant speed downwards, which in turn drives the drive block 52, the clamping frame 53, and the push plate 24 to move slowly and at a constant speed downwards. This also causes the piston shaft 232, the piston plate 23, and the piston sleeve 231 to move slowly and at a constant speed downwards. The small dose of medication in the drug storage needle tube 21 is then slowly and at a constant speed automatically fed into the extension tube 31 and administered intravenously to the patient at a slow and constant speed.

[0045] When slowly injecting a small dose of medication, the warm liquid circulation pump mechanism 44 is activated. The warm liquid is introduced into the cavity 401 through the first connecting pipe 441 at the output end and the inlet pipe 43, and then into the warm liquid circulation pump mechanism 44 through the outlet pipe 431 and the second connecting pipe 442 to circulate the warm liquid in the cavity 401. This helps to warm the medication in the extension tube 31, preventing the medication from being injected too cold into the patient and causing discomfort, thereby improving the comfort of the medication injection.

[0046] 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 clinical drug delivery rate control device comprising a device holder (1), characterized in that: The top of the equipment support (1) is provided with a feeding control mechanism (2), the bottom end of the feeding control mechanism (2) is provided with a feeding member (3), the bottom of the equipment support (1) is provided with an auxiliary mechanism (4), the top of the equipment support (1) is provided with a driving mechanism (5) used in cooperation with the feeding control mechanism (2), the side of the equipment support (1) close to the driving mechanism (5) is fixedly installed with a protective cover (6), the side of the equipment support (1) away from the protective cover (6) is hingedly installed with a protective frame (7), and the protective frame (7) is fixedly installed with an observation window (71); The feeding member (3) comprises an extension pipe (31) and a sliding seat (33), the top of the extension pipe (31) is fixedly installed with a first connecting head (32), the bottom of the extension pipe (31) is fixedly installed with a second connecting head (321), the bottom of the first connecting head (32) is fixedly sleeved with a limiting ring (322), the sliding seat (33) is slidingly installed in the middle of the equipment support (1), one end of the sliding seat (33) is fixedly installed with a first half clamping frame (34), the side of the first half clamping frame (34) away from the sliding seat (33) is provided with a second half clamping frame (35), the side of the second half clamping frame (35) close to the first half clamping frame (34) is integrally formed with a magnetic clamping column (351), the magnetic clamping column (351) is movably clamped at the end of the first half clamping frame (34), the end of the first half clamping frame (34) close to the second half clamping frame (35) is fixedly clamped with a magnetic block (341), the magnetic clamping column (351) and the magnetic block (341) are magnetically connected, the first connecting head (32) is movably clamped between the first half clamping frame (34) and the second half clamping frame (35), the upper surface of the limiting ring (322) is in contact with the lower surfaces of the first half clamping frame (34) and the second half clamping frame (35), the bottom end of the sliding seat (33) is provided with a telescopic air cylinder (36), the telescopic air cylinder (36) is fixedly installed in the equipment support (1), and the driving end of the telescopic air cylinder (36) and the bottom end of the sliding seat (33) are fixedly installed.

2. A clinical drug delivery rate control device according to claim 1, wherein: The delivery control mechanism (2) comprises a medicine storage needle tube (21) and a horizontal sliding frame (22), the middle part of the bottom end of the medicine storage needle tube (21) is integrally formed with a medicine storage needle (211), the horizontal sliding frame (22) is fixedly installed in the middle part of the equipment support (1), two symmetrical clamping frames (221) are slidingly clamped in the horizontal sliding frame (22), anti-skid strips (222) are fixedly installed on the opposite sides of the clamping frame (221), a double-acting cylinder (223) is fixedly installed in the middle part of the horizontal sliding frame (22), the driving end of the double-acting cylinder (223) is fixedly installed with the corresponding clamping frame (221), the medicine storage needle tube (21) is movably clamped between the two clamping frames (221), a piston disc (23) is arranged in the medicine storage needle tube (21), a piston sleeve (231) is movably sleeved on the outer side of the piston disc (23), the outer wall of the piston sleeve (231) is in contact with the inner wall of the medicine storage needle tube (21), a piston shaft (232) is fixedly installed in the middle part of the piston disc (23), the top of the piston shaft (232) extends out of the top end of the medicine storage needle tube (21), and a push disc (24) is fixedly installed on the top end of the piston shaft (232).

3. A clinical drug delivery rate control device according to claim 2, wherein: A support frame (25) is arranged below the horizontal sliding frame (22), the top of the medicine storage needle (211) is movably clamped on the support frame (25), and the bottom end of the medicine storage needle tube (21) is in contact with the upper surface of the support frame (25).

4. A clinical drug delivery rate control device according to claim 1, wherein: A plurality of clamping seats (37) corresponding to the extension pipe (31) are fixedly installed on the equipment support (1), and the extension pipe (31) is detachably clamped in the clamping seats (37).

5. A clinical drug delivery rate control device according to claim 1, wherein: The auxiliary mechanism (4) comprises an auxiliary frame (41), the auxiliary frame (41) is fixedly clamped at the bottom of the equipment support (1), a clamping sleeve frame (42) is integrally formed at one end of the auxiliary frame (41) close to the extension pipe (31), the extension pipe (31) is detachably clamped in the clamping sleeve frame (42), a cavity (401) is formed in the auxiliary frame (41) and the clamping sleeve frame (42), an inlet pipe (43) is integrally formed at the bottom of one end of the auxiliary frame (41) away from the clamping sleeve frame (42), and an outlet pipe (431) is integrally formed at the top of one end of the auxiliary frame (41) away from the clamping sleeve frame (42).

6. A clinical drug delivery rate controlling device according to claim 5, characterized in that: A warm liquid circulating pump mechanism (44) is fixedly installed on one side of the equipment support (1) close to the auxiliary frame (41), a first connecting pipe (441) is fixedly installed at the output end of the warm liquid circulating pump mechanism (44), the end of the first connecting pipe (441) is fixedly installed with the inlet pipe (43), a second connecting pipe (442) is fixedly installed at the input end of the warm liquid circulating pump mechanism (44), and the end of the second connecting pipe (442) is fixedly installed with the outlet pipe (431).

7. A clinical drug delivery rate control device according to claim 2, wherein: The driving mechanism (5) includes a rack frame (51), the rack frame (51) is provided with a fixed frame (511) on the sliding card, the fixed frame (511) is fixedly installed on the top of the equipment support (1), the top end of the rack frame (51) is fixedly installed with a driving block (52), the driving block (52) is slidingly connected on the top of the equipment support (1), the end of the driving block (52) is fixedly installed with a clamping frame (53), the push disc (24) is movably connected in the clamping frame (53), one side of the rack frame (51) is engaged with a pinion (54), the middle of the pinion (54) is fixedly installed with a first shaft (541), the first shaft (541) is rotatably installed on the equipment support (1), the second shaft (55) is arranged below the first shaft (541), the second shaft (55) is rotatably installed on the equipment support (1), the end of the first shaft (541) and the second shaft (55) is fixedly installed with a large gear (56), the two large gears (56) are engaged, the outer side of the large gear (56) at the bottom position is engaged with a middle gear (57), the middle of the middle gear (57) is fixedly installed with a third shaft (571), the third shaft (571) is rotatably installed on the equipment support (1), the outer side of the third shaft (571) is fixedly installed with a worm wheel (58), the outer side of the worm wheel (58) is engaged with a worm (581).

8. A clinical drug delivery rate controlling device according to claim 7, characterized in that: The equipment support (1) is fixedly installed with a driving motor (59) on one side close to the worm (581), and the driving end of the driving motor (59) and the bottom end of the worm (581) are fixedly installed.

9. A clinical drug delivery rate control device according to claim 1, wherein: The observation window (71) is fixedly installed with a handle (8).

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