A chemotherapy infusion device for tumor patients

Abstract

The present invention discloses a chemotherapy infusion device for tumor patients, which relates to the technical field of medical devices, including an infusion tube, a drug sustained-release mechanism, an infusion needle, a manual speed regulating switch, an intelligent flow controller, and an infusion bottle; the infusion needle is arranged at the front end of the infusion tube, and is used to puncture a vein to infuse liquid medicine for the patient; the drug sustained-release mechanism is detachably connected between the infusion needle and the infusion tube, and is used to slowly add a buffer substance to prevent irritation to the chemotherapy liquid; the rear end of the infusion tube is connected to the infusion bottle; the intelligent flow controller is arranged in the middle of the infusion tube, and is used to monitor and control the speed of infusion. The present invention arranges a drug sustained-release mechanism between the infusion needle and the infusion tube, and is used to slowly add a buffer substance to prevent irritation to the chemotherapy liquid, so that the anti-irritation buffer substance can be added according to the patient's reaction degree to the drug during chemotherapy infusion, thereby reducing the stimulation of the drug to the patient and reducing the incidence of adverse reactions.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a chemotherapy infusion device for tumor patients. Background Art

[0002] A tumor is a new organism formed by the proliferation of local tissue cells. The acidity of a tumor is slightly stronger than that of healthy body tissue. The tumor can form an "acid wall" to protect itself from the attack of the immune system. Therefore, when treating tumor patients, an infusion device is needed to inject drugs into the patient's body for chemotherapy.

[0003] At present, there are many problems with ordinary infusion devices during chemotherapy infusion for cancer patients. The flow rate control of traditional infusion devices is not accurate enough, and the unstable infusion rate of chemotherapy drugs may affect the treatment effect and even cause adverse reactions. In addition, chemotherapy drugs have special chemical properties and are highly irritating to blood vessels and organs. Ordinary infusion devices cannot effectively reduce the irritation of drugs to blood vessels and organs, which will cause discomfort to patients.

[0004] In addition, during the infusion process, medical staff need to frequently observe the infusion progress and patient status. Existing infusion devices cannot accurately monitor the flow rate of infusion, which increases the workload of medical staff.

[0005] Based on this, we proposed a chemotherapy infusion device for cancer patients. Summary of the invention

[0006] The present invention aims to provide a chemotherapy infusion device for tumor patients, so as to achieve precise flow rate control, reduce drug stimulation on blood vessels and have a remote monitoring function, thereby improving the quality and safety of chemotherapy infusion and facilitating management by medical staff.

[0007] The present invention is achieved through the following technical solutions:

[0008] A chemotherapy infusion device for tumor patients, comprising an infusion tube, a drug sustained-release mechanism, an infusion needle, a manual speed regulating switch, an intelligent flow controller, and an infusion bottle;

[0009] The infusion needle is arranged at the front end of the infusion tube and is used to puncture the vein to infuse the patient with liquid medicine;

[0010] The drug sustained-release mechanism is detachably connected between the infusion needle and the infusion tube, and is used to slowly add a buffer substance to prevent irritation to the chemotherapy solution; the rear end of the infusion tube is connected to the infusion bottle;

[0011] The intelligent flow controller is arranged in the middle of the infusion tube and is used to monitor and control the speed of infusion;

[0012] The manual speed regulating switch is also arranged in the middle of the infusion tube and is used for manually controlling the speed of infusion.

[0013] Preferably, the drug sustained-release mechanism includes a sustained-release component, a dissolution-promoting component, a plug-in portion and a connecting portion, the sustained-release component and the dissolution-promoting component are connected through, the plug-in portion and the dissolution-promoting component are connected by a pipeline, and the plug-in portion is plugged into the socket of the infusion needle when in use; the connecting portion and the sustained-release component are connected by a pipeline, and the connecting portion is docked with the front end of the infusion tube when in use.

[0014] Preferably, the sustained-release component includes a sustained-release box and a box cover, the sustained-release box is cylindrical, and the box cover is threaded and sealed to the upper port of the sustained-release box; a drug adding cartridge is penetrated through the middle of the box cover, and a drug sustained-release ball is provided at one end of the drug adding cartridge located inside the sustained-release box, and an automatic drug pressing component is provided on the outer side of the box cover located on one side of the drug adding cartridge.

[0015] When in use, the buffer substance is added from the drug adding cartridge to the drug sustained-release ball, and the buffer substance is slowly released into the chemotherapy drug through the drug sustained-release ball and mixed with the chemotherapy drug to reduce the irritation of the chemotherapy drug.

[0016] Preferably, the automatic drug compression assembly includes a support frame, which is in an inverted L-shape. The lower end of the support frame is fixedly connected to the box cover, and the upper part of the support frame is provided with a through hole. A lifting rod is slidably arranged in the through hole, and the lower end of the lifting rod is rotatably connected to a piston. The lifting rod is located between the piston and the support frame and is provided with a spring. When in use, the piston is located in the drug adding cartridge, and its outer wall is sealed and slidably arranged with the inner wall of the drug adding cartridge, and under the action of the spring, the buffering object added to the drug adding cartridge is continuously pressed downward so that it reaches the drug sustained-release ball.

[0017] Preferably, the lifting rod includes a rod body and a pull ring; the upper end of the rod body is fixedly connected to the pull ring, which is convenient for users to lift the rod body, and the lower end of the rod body is rotatably connected to the piston through a bearing; a vertical groove is provided on the inner wall of the through hole of the support frame, and a 90-degree arc groove is provided on the upper end of the through hole, and a clamping block matching the vertical groove is provided on the lower outer wall of the rod body. When the rod body is lifted upward, the clamping block passes through the vertical groove and causes the rod body to rotate 90 degrees in the direction of the arc groove, so that the clamping block is stuck in the arc groove, thereby pulling the piston out of the dosing cartridge and fixing the rod body and the piston, which is convenient for users to add buffer substances into the dosing cartridge.

[0018] Preferably, the drug sustained-release ball comprises an outer sphere and an inner sphere, the outer sphere is sleeved on the outside of the inner sphere, and the upper parts of the outer sphere and the inner sphere are both provided with drug inlets, the drug inlet of the inner sphere is fixedly connected to the lower end of the drug adding cylinder, the drug inlet of the outer sphere extends upward in a cylindrical shape, passes through the box cover and is wrapped on the outer wall of the drug adding cylinder, and is sealed and rotated in a limited position on the box cover, and the outer walls of the outer sphere and the inner sphere are both provided with a plurality of through-shaped sustained-release holes; the outer sphere and the inner sphere can slide relative to each other; a driving ring is provided on the outer wall of the extended part of the outer sphere;

[0019] When in use, buffer substances are added to the inner cavity of the inner sphere. Through the flow of chemotherapy liquid, the buffer substances in the inner sphere are slowly released from the sustained-release holes into the chemotherapy liquid and input into the patient's body together, thereby reducing the stimulation of chemotherapy drugs on the patient's tissues and organs. At the same time, rotating the drive ring can drive the outer sphere to rotate, so that the sustained-release holes on the outer sphere and the sustained-release holes on the inner sphere are misaligned, thereby changing the aperture of the sustained-release holes for releasing drugs, making it convenient to adjust the release speed.

[0020] Preferably, the dissolution-promoting component includes a dissolution-promoting box, one end of which is through-connected with a sustained-release box, a plurality of guide plates are evenly arranged in the inner cavity of the dissolution-promoting box, a flow channel is reserved between one end of each of the guide plates and the side wall of the dissolution-promoting box, and the flow channels on two adjacent guide plates are in opposite directions, so that an S-shaped channel is formed in the dissolution-promoting box; a rectangular hole is provided in the middle of each of the guide plates, a rotating shaft is provided inside the rectangular hole, and a plurality of fan blades are provided on the outer wall of the rotating shaft.

[0021] When the buffer object is added to the chemotherapy solution, they flow into the dissolution-promoting box together. The solution flows in the S-shaped channel of the dissolution-promoting box. The flow of the solution drives the fan blades to rotate, thereby promoting the mixing of the buffer object and the chemotherapy solution. The S-shaped channel increases the mixing time and distance.

[0022] Preferably, a flow rate sensor, a control main board, an electric cylinder, a pressure plate and a pad are provided inside the intelligent flow controller; the electric cylinder is fixedly arranged on an inner wall on one side of the intelligent flow controller, the telescopic end of the electric cylinder is connected to the pressure plate, the pad is arranged on the inner wall on the other side of the intelligent flow controller, and the heights of the pressure plate and the pad are consistent; the flow rate sensor is arranged on the wall of the infusion tube for monitoring the flow rate of the infusion; the control main board is electrically connected to the flow rate sensor and the electric cylinder, respectively.

[0023] When in use, the flow rate sensor monitors the flow rate of the infusion and transmits the data to the control motherboard. The control motherboard sends a control signal to the electric cylinder, causing the electric cylinder to extend and retract, driving the pressure plate closer to or away from the pad, thereby changing the flow rate of the infusion by squeezing the infusion tube.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The present invention sets a drug sustained-release mechanism between the infusion needle and the infusion tube to slowly add an anti-irritation buffer substance to the chemotherapy solution, so that the anti-irritation buffer substance can be added according to the patient's reaction degree to the drug during chemotherapy infusion, thereby reducing the stimulation of the drug to the patient, reducing the incidence of adverse reactions such as vasculitis, and improving the patient's comfort.

[0026] 2. The present invention stores buffer substances through the drug sustained-release balls in the sustained-release component, and slowly infiltrates the buffer substances into the chemotherapy infusion through the sustained-release holes, so that the buffer substances are continuously and evenly dissolved, thereby increasing the effect of the buffer substances, and the added drug sustained-release mechanism facilitates the operation of medical staff.

[0027] 3. The present invention can continuously press down the buffering object added to the drug adding cartridge through the automatic drug pressing component, so that it reaches the drug sustained-release ball and avoids sticking in the drug adding cartridge; and through the setting of the block and the vertical groove, the withdrawn piston and the rod body can be fixed, so that the user can add the buffering substance to the drug adding cartridge conveniently.

[0028] 4. The present invention provides a dissolution-promoting component to increase the mixing and dissolution efficiency of the drug solution and the buffer substance. When the buffer object is added to the chemotherapy drug solution, they flow into the dissolution-promoting box together. The drug solution flows in the S-shaped channel of the dissolution-promoting box. The flow of the drug solution drives the fan blades to rotate, thereby promoting the mixing of the buffer object and the chemotherapy drug solution. The S-shaped channel increases the mixing time and distance.

[0029] 5. By setting up an intelligent flow controller, the present invention can intelligently and conveniently monitor and control the infusion speed, ensure that chemotherapy drugs are infused at the optimal speed, improve the treatment effect, reduce complications caused by improper flow rate, improve the accuracy of infusion, and facilitate management by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a chemotherapy infusion device for tumor patients;

[0031] Figure 2 A schematic diagram of the structure of a drug sustained-release mechanism in a chemotherapy infusion device for tumor patients;

[0032] Figure 3 A partial schematic diagram of a sustained-release component in a chemotherapy infusion device for tumor patients;

[0033] Figure 4 A bottom view of a sustained-release component in a chemotherapy infusion device for tumor patients;

[0034] Figure 5 A schematic diagram of the structure of a support frame in a chemotherapy infusion device for tumor patients;

[0035] Figure 6 A schematic diagram of the structure of a lifting rod in a chemotherapy infusion device for tumor patients;

[0036] Figure 7 A cross-sectional view of a drug-release ball in a chemotherapy infusion device for cancer patients;

[0037] Figure 8 A cross-sectional view of a dissolution-promoting component in a chemotherapy infusion device for tumor patients;

[0038] Fig. 9 The right side view of a dissolution-promoting component in a chemotherapy infusion device for tumor patients;

[0039] Fig.10 The present invention is a schematic diagram of the structure of an intelligent flow controller in a chemotherapy infusion device for tumor patients.

[0040] Numbers in the figure: 1. Infusion tube; 2. Drug sustained-release mechanism; 3. Infusion needle; 4. Manual speed control switch; 5. Intelligent flow controller; 6. Infusion bottle;

[0041] 21. sustained-release component; 22. dissolution-promoting component; 23. plug-in portion; 24. connecting portion;

[0042] 51. Control main board; 52. Electric cylinder; 53. Flow rate sensor; 54. Pressing plate; 55. Backing plate;

[0043] 211, sustained-release box; 212, box cover; 213, support frame; 214, drug sustained-release ball; 215, lifting rod; 216, spring; 217, piston; 218, drug adding cartridge;

[0044] 221, dissolution-promoting box; 222, guide plate; 223, S-shaped channel; 224, fan blade; 225, rotating shaft; 226, rectangular hole;

[0045] 2131, through hole; 2132, vertical groove; 2133, arc groove;

[0046] 2141, outer sphere; 2142, inner sphere; 2143, slow-release hole; 2144, driving ring;

[0047] 2151. Rod body; 2152. Pull ring; 2153. Block. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] For example, see Figure 1-Figure 9 , a chemotherapy infusion device for tumor patients, comprising an infusion tube 1, a drug sustained-release mechanism 2, an infusion needle 3, a manual speed regulating switch 4, an intelligent flow controller 5, and an infusion bottle 6;

[0050] The infusion needle 3 is arranged at the front end of the infusion tube 1 and is used to puncture the vein to infuse the patient with liquid medicine;

[0051] The drug sustained-release mechanism 2 is detachably connected between the infusion needle 3 and the infusion tube 1, and is used to slowly add a buffer substance to the chemotherapy solution to prevent irritation; the rear end of the infusion tube 1 is connected to the infusion bottle 6; in other embodiments, the drug sustained-release mechanism 2 can also be directly integrated into the front end of the infusion tube 1.

[0052] The intelligent flow controller 5 is arranged in the middle of the infusion tube 1 and is used to monitor and control the speed of infusion;

[0053] The manual speed regulating switch 4 is also arranged in the middle of the infusion tube 1 for manually controlling the speed of the infusion.

[0054] Among them, the drug sustained-release mechanism 2 includes a sustained-release component 21, a dissolution-promoting component 22, a plug-in portion 23 and a connecting portion 24. The sustained-release component 21 and the dissolution-promoting component 22 are connected through each other, the plug-in portion 23 and the dissolution-promoting component 22 are connected by a pipeline, and the plug-in portion 23 is plugged into the socket of the infusion needle 3 when in use; the connecting portion 24 is connected to the sustained-release component 21 by a pipeline, and the connecting portion 24 is docked with the front end of the infusion tube 1 when in use.

[0055] The sustained-release component 21 includes a sustained-release box 211 and a box cover 212. The sustained-release box 211 is cylindrical, and the box cover 212 is threaded and sealed to the upper port of the sustained-release box 211. A drug adding cartridge 218 is provided through the middle of the box cover 212. The drug adding cartridge 218 is located at one end of the interior of the sustained-release box 211 and is provided with a drug sustained-release ball 214. The outer side surface of the box cover 212 is located on one side of the drug adding cartridge 218 and is provided with an automatic drug pressing component.

[0056] When in use, the buffer substance is added from the drug adding cartridge 218 to the drug sustained-release sphere 214, and the buffer substance is slowly released into the chemotherapy drug through the drug sustained-release sphere 214 and mixed with the chemotherapy drug to reduce the irritation of the chemotherapy drug.

[0057] The automatic drug compression assembly includes a support frame 213, which is in an inverted L-shape. The lower end of the support frame 213 is fixedly connected to the box cover 212. A through hole 2131 is provided on the upper part of the support frame 213. A lifting rod 215 is slidably provided in the through hole 2131. The lower end of the lifting rod 215 is rotatably connected to a piston 217. The lifting rod 215 is located between the piston 217 and the support frame 213 and a spring 216 is provided. When in use, the piston 217 is located in the drug adding cartridge 218, and its outer wall is sealed and slidably arranged with the inner wall of the drug adding cartridge 218. Under the action of the spring 216, the buffering object added to the drug adding cartridge 218 is continuously pressed downward so that it reaches the drug sustained-release ball 214.

[0058] It should be noted that this embodiment is mainly for granular and fixed buffer substances. If the buffer substance is liquid, there is no need for piston squeezing, and only the size of the slow-release hole needs to be adjusted.

[0059] The lifting rod 215 includes a rod body 2151 and a pull ring 2152; the upper end of the rod body 2151 is fixedly connected to the pull ring 2152, which is convenient for the user to lift the rod 215 body, and the lower end of the rod body 2151 is rotatably connected to the piston 217 through a bearing; a vertical groove 2132 is provided on the inner wall of the through hole 2131 of the support frame 213, a 90-degree arc groove 2133 is provided at the upper end of the through hole 2131, and a lower outer wall of the rod body 2151 is provided The block 2153 matches the vertical groove 2132. When the rod 215 body is pulled upward, the block 2153 passes through the vertical groove 2132 and causes the rod body 2151 to rotate 90 degrees along the direction of the arc groove 2133, so that the block 2153 is stuck in the arc groove 2133, thereby pulling the piston 217 out of the dosing cartridge 218 and fixing the rod body 2151 and the piston 217, making it convenient for the user to add buffer substances into the dosing cartridge 218.

[0060] The drug sustained-release ball 214 includes an outer sphere 2141 and an inner sphere 2142. The outer sphere 2141 is sleeved on the outside of the inner sphere 2142, and the upper parts of the outer sphere 2141 and the inner sphere 2142 are both provided with drug inlets. The drug inlet of the inner sphere 2142 is fixedly connected to the lower end of the drug adding cylinder 218. The drug inlet of the outer sphere 2141 extends upward in a cylindrical shape, passes through the box cover 212 and is wrapped on the outer wall of the drug adding cylinder 218, and is sealed and rotated in a limited position on the box cover 212. A plurality of through-shaped sustained-release holes 2143 are provided on the outer walls of the outer sphere 2141 and the inner sphere 2142; the outer sphere 2141 and the inner sphere 2142 can slide relative to each other; a driving ring 2144 is provided on the outer wall of the extension part of the outer sphere 2141;

[0061] When in use, a buffer substance is added to the inner cavity of the inner sphere 2142. Through the flow of chemotherapy liquid, the buffer substance in the inner sphere 2142 is slowly released from the sustained-release hole 2143 into the chemotherapy liquid and input into the patient's body together, thereby reducing the stimulation of the chemotherapy drugs on the patient's tissues and organs. At the same time, the rotating drive ring 2144 can drive the outer sphere 2141 to rotate, so that the sustained-release hole 2143 on the outer sphere 2141 and the sustained-release hole 2143 on the inner sphere 2142 are misaligned, thereby changing the aperture of the sustained-release hole 2143 for releasing drugs, making it convenient to adjust the release speed.

[0062] Among them, the dissolution-promoting component 22 includes a dissolution-promoting box 221, one end of which is connected to the sustained-release box 211, and a plurality of guide plates 222 are evenly arranged in the inner cavity of the dissolution-promoting box 221. In this embodiment, the number of guide plates 222 is 3, and a flow channel is reserved between one end of each guide plate 222 and the side wall of the dissolution-promoting box 221, and the flow channels on two adjacent guide plates 222 are in opposite directions, so that an S-shaped channel 223 is formed in the dissolution-promoting box 221; a rectangular hole 226 is provided in the middle part of each guide plate 222, and a rotating shaft 225 is provided inside the rectangular hole 226 for rotation, and a plurality of fan blades 224 are provided on the outer wall of the rotating shaft 225. In this embodiment, the number of fan blades 224 is 6.

[0063] When the buffer object is added to the chemotherapy solution, they flow into the dissolution-promoting box 221 together. The solution flows in the S-shaped channel 223 of the dissolution-promoting box 221, and the fan blades 224 are driven to rotate by the flow of the solution, thereby promoting the mixing of the buffer object and the chemotherapy solution, and the S-shaped channel 223 increases the mixing time and distance.

[0064] Embodiment 2: In order to solve the problem of intelligent monitoring of the flow rate of infusion, improve the accuracy of infusion, and facilitate the management of medical staff, this embodiment adds the following solutions on the basis of embodiment 1:

[0065] See also Figure 1 , Fig.10 The interior of the intelligent flow controller 5 is provided with a flow rate sensor 53, a control main board 51, an electric cylinder 52, a pressure plate 54 and a pad 55; the electric cylinder 52 is fixedly arranged on the inner wall of one side of the intelligent flow controller 5, the telescopic end of the electric cylinder 52 is connected to the pressure plate 54, the pad 55 is arranged on the inner wall of the other side of the intelligent flow controller 5, and the heights of the pressure plate 54 and the pad 55 are consistent; the flow rate sensor 53 is arranged on the wall of the infusion tube 1 for monitoring the flow rate of the infusion; the control main board 51 is electrically connected to the flow rate sensor 53 and the electric cylinder 52 respectively.

[0066] When in use, the flow rate sensor 53 monitors the flow rate of the infusion and transmits the data to the control mainboard 51. The control mainboard 51 sends a control signal to the electric cylinder 52, so that the electric cylinder 52 is extended and retracted, driving the pressing plate 54 to move closer to or away from the pad 55, thereby changing the flow rate of the infusion by squeezing the infusion tube 1. At the same time, the flow rate sensor 53 can accurately monitor the speed of the infusion and display it on the display screen of the intelligent flow controller 5, which is convenient for medical staff to observe.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemotherapy infusion device for tumor patients, characterized in that: It comprises an infusion tube (1), a drug sustained-release mechanism (2), an infusion needle (3), a manual speed regulating switch (4), an intelligent flow controller (5), and an infusion bottle (6); The infusion needle (3) is arranged at the front end of the infusion tube (1) and is used to puncture a vein to infuse liquid medicine into the patient; The drug sustained-release mechanism (2) is detachably connected between the infusion needle (3) and the infusion tube (1) and is used to slowly add a buffer substance to prevent irritation into the chemotherapy liquid; the rear end of the infusion tube (1) is connected to an infusion bottle (6); The drug sustained-release mechanism (2) comprises a sustained-release component (21), a dissolution-promoting component (22), a plug-in portion (23) and a connecting portion (24); the sustained-release component (21) and the dissolution-promoting component (22) are connected through each other, the plug-in portion (23) and the dissolution-promoting component (22) are connected via a pipeline, and the plug-in portion (23) is plugged into the socket of the infusion needle (3) when in use; the connecting portion (24) and the sustained-release component (21) are connected via a pipeline, and the connecting portion (24) is butted against the front end of the infusion tube (1) when in use; The intelligent flow controller (5) is arranged in the middle of the infusion tube (1) and is used to monitor and control the speed of infusion; The manual speed regulating switch (4) is also arranged in the middle of the infusion tube (1) and is used to manually control the speed of infusion; The sustained-release component (21) comprises a sustained-release box (211) and a box cover (212); the sustained-release box (211) is cylindrical, and the box cover (212) is threadedly sealed and connected to the upper end of the sustained-release box (211); a drug adding cartridge (218) is provided through the middle of the box cover (212); a drug adding cartridge (218) is located at one end of the interior of the sustained-release box (211) and is provided with a drug sustained-release ball (214); and an automatic drug pressing component is provided on the outer side of the box cover (212) and is located on one side of the drug adding cartridge (218); The automatic drug pressing assembly comprises a support frame (213), the support frame (213) is in an inverted L-shape, the lower end of the support frame (213) is fixedly connected to the box cover (212), the upper part of the support frame (213) is provided with a through hole (2131), a lifting rod (215) is slidably arranged in the through hole (2131), the lower end of the lifting rod (215) is rotatably connected to a piston (217), the lifting rod (215) is located between the piston (217) and the support frame (213) and is provided with a spring (216), when in use, the piston (217) is located in the drug adding cartridge (218), the outer wall of the piston (217) is sealed and slidably arranged with the inner wall of the drug adding cartridge (218), and under the action of the spring (216), the buffering object added to the drug adding cartridge (218) is continuously pressed downward so that it reaches the drug sustained-release ball (214); The lifting rod (215) comprises a rod body (2151) and a pull ring (2152); the upper end of the rod body (2151) is fixedly connected to the pull ring (2152) to facilitate the user to lift the rod (215) body, and the lower end of the rod body (2151) is rotatably connected to the piston (217) through a bearing; a vertical groove (2132) is provided on the inner wall of the through hole (2131) of the support frame (213), and a 90-degree arc groove (2133) is provided at the upper end of the through hole (2131); a block (2153) matching the vertical groove (2132) is provided on the lower outer wall of the rod body (2151); When the rod (215) is pulled upward, the block (2153) passes through the vertical groove (2132), and the rod (2151) is rotated 90 degrees along the direction of the arc groove (2133), so that the block (2153) is stuck in the arc groove (2133), thereby pulling the piston (217) out of the dosing cartridge (218) and fixing the rod (2151) and the piston (217); The drug sustained-release ball (214) comprises an outer sphere (2141) and an inner sphere (2142), wherein the outer sphere (2141) is sleeved on the outside of the inner sphere (2142), and the upper parts of the outer sphere (2141) and the inner sphere (2142) are both provided with drug inlets, the drug inlet of the inner sphere (2142) is fixedly connected to the lower end of the drug adding cylinder (218), and the drug inlet of the outer sphere (2141) extends upward in a cylindrical shape. The outer wall of the drug-adding cartridge (218) is wrapped around the box cover (212) and is sealed and rotated to limit the position of the box cover (212). The outer walls of the outer sphere (2141) and the inner sphere (2142) are both provided with a plurality of through-shaped sustained-release holes (2143); the outer sphere (2141) and the inner sphere (2142) can slide relative to each other; and a driving ring (2144) is provided on the outer wall of the extension portion of the outer sphere (2141).

2. A chemotherapy infusion device for tumor patients according to claim 1, characterized in that: The dissolution-promoting component (22) includes a dissolution-promoting box (221), one end of which is connected to the sustained-release box (211), and a plurality of guide plates (222) are evenly arranged in the inner cavity of the dissolution-promoting box (221), and a flow channel is reserved between one end of each of the guide plates (222) and the side wall of the dissolution-promoting box (221), and the flow channels on two adjacent guide plates (222) are in opposite directions, so that an S-shaped channel (223) is formed in the dissolution-promoting box (221); a rectangular hole (226) is provided in the middle of each of the guide plates (222), and a rotating shaft (225) is provided inside the rectangular hole (226), and a plurality of fan blades (224) are provided on the outer wall of the rotating shaft (225).

3. A chemotherapy infusion device for tumor patients according to any one of claims 1-2, characterized in that: The intelligent flow controller (5) is provided with a flow rate sensor (53), a control main board (51), an electric cylinder (52), a pressure plate (54) and a pad (55) inside; the electric cylinder (52) is fixedly arranged on the inner wall of one side of the intelligent flow controller (5), the telescopic end of the electric cylinder (52) is connected to the pressure plate (54), the pad (55) is arranged on the inner wall of the other side of the intelligent flow controller (5), and the heights of the pressure plate (54) and the pad (55) are consistent; the flow rate sensor (53) is arranged on the wall of the infusion tube (1) for monitoring the flow rate of the infusion; the control main board (51) is electrically connected to the flow rate sensor (53) and the electric cylinder (52), respectively.

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