Dose-adjustable medical oncology immune injection device

Abstract

The invention discloses a dosage-adjustable medical oncology immune injection device in the technical field of medical instruments, which comprises a handle, a plurality of buttons fixedly connected to one side of the handle, a cylinder fixedly connected to the top of the handle, a controller arranged in the cylinder, a fixed shaft coaxially and fixedly connected to the center of the cylinder, and an air pump fixedly connected to the top in the cylinder. The end, away from the handle, of the fixing shaft is rotationally connected with a rotary pushing assembly, the front end of the rotary pushing assembly fixedly communicates with a connector assembly, the rotary pushing assembly is used for cleaning the connector assembly, and the connector assembly is used for communicating with a needle for injection. The rotating wheel assembly is used for switching injection medicine and driving the rotating pushing assembly, and the button and the air pump are both in signal connection with the controller. The device is novel and practical, the piston is sucked through the air pump to quantitatively control the dosage of sucked and injected liquid medicine, the medicine tubes sucking different liquid medicine are converted through the rotating wheel, repeated acupuncture during injection of various medicines is reduced, pain of patients is reduced, and operation of doctors is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular is a dosage-adjustable tumor internal medicine immune injection device. Background Art

[0002] As a new generation of tumor treatment, tumor immunotherapy has made significant progress in recent years. From PD-(L)1 antibodies to CAR-T cell therapy, advances in tumor immunology are changing the treatment standards for many types of cancer. This treatment method fights tumors by activating or regulating the patient's immune system, with potential high efficiency and low toxicity. However, tumor immunotherapy also faces many challenges, such as how to accurately control drug dosage and how to improve the targeting of drugs.

[0003] In tumor immunotherapy, the injection device is a key tool for drug delivery. During immunotherapy, quantitative coordination of multiple drugs is often required to achieve the best therapeutic effect. However, since the injection device relies entirely on the doctor's experience and has no metering device, traditional injection devices often have problems such as inaccurate dose control, complex operation, and difficulty in injecting multiple drugs at one time. In addition, there is no function of hot switching injection of drugs, which makes it difficult to meet the demand for precise control of drug doses in tumor immunotherapy. For this reason, it is necessary to propose an oncology immunotherapy injection device that can accurately and quantitatively absorb drug solution, and can inject multiple drugs without repeated injections, reduce patient pain, and facilitate doctor operation with adjustable doses. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide an oncology internal medicine immunotherapy injection device with adjustable dosage, which quantitatively controls the dosage of the medicine liquid sucked and injected by sucking the piston through an air pump, and sucks medicine tubes with different medicine liquids through a rotating wheel to reduce repeated injections when injecting multiple drugs, reduce patient pain, and facilitate doctor's operation.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a dose-adjustable oncology internal medicine immunoinjection device, comprising a handle, a plurality of buttons fixedly connected to one side of the handle, a barrel fixedly connected to the top of the handle, a controller provided inside the barrel, a fixed shaft coaxially fixedly connected to the center of the barrel, an air pump fixedly connected to the top of the barrel, a rotating push assembly rotatably connected to the end of the fixed shaft away from the handle, a joint assembly fixedly connected to the front end of the rotating push assembly, the rotating push assembly is used to clean the joint assembly, the joint assembly is used to connect to the needle for injection, a rotating wheel assembly is slidably sleeved on the outer periphery of the rotating push assembly, the rotating wheel assembly is used to switch the injection drug and drive the rotating push assembly, and the buttons and the air pump are both connected to the controller signal.

[0006] The principle of the basic solution is: control the air pump through the controller to push the syringe to absorb and inject the drug solution, accurately control the metering, transform the absorbed and injected drug solution through the rotary assembly to achieve multi-drug injection, and push the sterile saline solution to clean the connector assembly through the rotating push assembly to avoid drug contamination and conflict.

[0007] The beneficial effects of the basic scheme are: 1. The device can precisely control the working time and pressure of the air pump through the controller, thereby achieving highly accurate control of the dosage of the drug solution. This accuracy is crucial for tumor immunotherapy, which can ensure the effective concentration of the drug in the body, improve the treatment effect, and reduce unnecessary side effects.

[0008] 2. The design of the rotary assembly allows medical staff to easily select and replace different drug tubes without having to replace the entire injection device. This feature greatly simplifies the operation process of multi-drug injection, reduces the number of repeated injections, and reduces the patient's pain and infection risk.

[0009] 3. Since the device can complete the injection of multiple drugs in one injection process, it significantly improves the treatment efficiency. Medical staff can complete treatment tasks faster and spend more time on patient care and condition monitoring, thereby improving the overall quality of medical services.

[0010] 4. The button design of this device conforms to the principle of ergonomics, so that medical staff can easily master the operation method. At the same time, the introduction of the control system further simplifies the operation process, reduces the complexity of operation, and reduces the risk of medical accidents caused by improper operation.

[0011] Furthermore, the rotary pushing assembly includes a screw rod, which is rotatably connected to one end of the fixed shaft, and the middle part of the screw rod is fixedly connected to the rotating wheel assembly. The part of the screw rod away from the fixed shaft is threadedly sleeved with a screw nut, and the outer periphery of the screw nut is sealed with a cleaning tube. The end of the cleaning tube close to the screw rod is sealingly and slidingly connected to the rotating wheel assembly, and a cleaning piston is sealed and sleeved in the middle of the cleaning tube. A plurality of pushing rods are fixedly connected between the side of the cleaning piston close to the screw rod and the screw nut, and sterile saline is filled between the cleaning piston and the joint assembly in the cleaning tube.

[0012] The beneficial effects of the basic solution are: 1. The threaded sleeve design of the screw and the screw nut enables the screw to accurately push the screw nut to move along the screw axis when the screw rotates. This precise movement control ensures the dosage accuracy of the saline during the injection process and the position accuracy of the cleaning piston during the cleaning process.

[0013] 2. The sterile saline in the cleaning tube can effectively clean the joint components under the push of the cleaning piston to avoid contamination and conflict between drugs. The push rod converts the rotational motion of the screw nut into the linear motion of the cleaning piston, thereby realizing the automation and efficiency of the cleaning process.

[0014] 3. The sealing design of the cleaning piston, push rod and other components ensures the sealing and stability of sterile saline during the cleaning process, avoiding equipment damage and performance degradation due to leakage.

[0015] Furthermore, the joint assembly includes a receiving plate, one side of which is slidably connected to the rotary assembly, a liquid outlet pipe is opened in the center of the same side of the receiving plate, the liquid outlet pipe runs through the receiving plate, the middle part of the liquid outlet pipe is connected to a filter plate, the filter plate is radially fixedly connected to a filter screen, the pore size of the filter screen is not greater than 0.2 μm, one side of the middle part of the liquid outlet pipe is connected to a side tube, the end of the side tube away from the liquid outlet pipe is connected to the rotary assembly, the side of the receiving plate away from the rotary assembly is fixedly connected to a joint, the joint is detachably connected to a conventional needle, and a connecting rod is fixedly connected between the outer bottom of the receiving plate and the inner side of the handle.

[0016] The beneficial effects of the basic scheme are: 1. The sliding connection design between one side of the receiving disc and the rotating wheel assembly enables the joint assembly to slide to a certain extent relative to the rotating wheel assembly, thereby adapting to the injection requirements of different angles and positions. This flexibility ensures the stability and continuity of the liquid medicine during the transmission process. The connection design of the liquid outlet tube and the side tube allows the liquid medicine to flow smoothly from the rotating wheel assembly to the joint assembly, and finally be injected into the patient's body through a conventional needle. This design improves the transmission efficiency of the liquid medicine.

[0017] 2. The detachable connection design between the connector and the conventional needle means that medical staff do not need to disassemble the entire connector assembly when replacing the needle, thereby simplifying the operation process and reducing the operation time. This design not only improves work efficiency, but also reduces the risk of medical accidents caused by improper operation.

[0018] 3. The connecting rod connects the bottom of the outer periphery of the receiving plate to the inner side of the handle, making the position of the joint assembly in the device more stable and less likely to shake. This design not only improves the overall stability of the device, but also allows medical staff to control the injection device more easily during operation. The compact structural design also makes the entire device more compact and lightweight, easy to carry and transport, and suitable for oncology immunotherapy in different occasions.

[0019] 4. The specially designed filter disc in the connector assembly is combined with a precision filter screen, with a pore size of no more than 0.2μm. This tiny size is enough to block most bacteria, viruses, particles and other potential contaminants, thereby ensuring that the drugs injected into the patient's body are pure and safe. The filtration system can not only effectively filter the drugs before they enter the liquid outlet tube, but also prevent cross-contamination between different drugs when switching drugs, further improving the safety of injection.

[0020] Furthermore, the wheel assembly includes a wheel, one end of the wheel near the receiving plate is slidably connected to the receiving plate, one end of the wheel near the handle is slidably connected to the cylinder and the center is fixedly connected to the screw rod, one end of the wheel near the handle is provided with a plurality of ventilation holes on the same circumference, one end of the wheel near the receiving plate is provided with a plurality of liquid holes on the same circumference, the liquid holes all correspond to the side tubes, the ventilation holes all correspond to the air pump output port, a plurality of medicine tubes are axially fixedly connected to the same circumference of the inside of the wheel, medicine pistons are slidably sleeved in the medicine tubes, through holes are provided at both ends of the medicine tubes, the through holes at both ends correspond to the ventilation holes and the liquid holes respectively.

[0021] The beneficial effects of the basic scheme are: 1. The rotating wheel assembly realizes the simultaneous management and storage of multiple drugs through several medicine tubes fixedly connected on the same circumference. This design enables medical staff to easily switch different drugs during a single injection without replacing the entire injection device, thereby improving treatment efficiency and flexibility. The sliding sleeve of the medicine piston in each medicine tube, combined with the design of the vent and liquid hole, ensures precise control of the drug during the injection process. When the air pump injects gas into the medicine tube through the vent, the medicine piston is pushed, thereby transporting the drug through the liquid hole and the side tube to the liquid outlet tube, and finally injected into the patient's body. This precise injection control is crucial for tumor immunotherapy, which can ensure the effective concentration of the drug in the body and improve the treatment effect.

[0022] 2. The design of the wheel assembly makes the entire device more compact and easier to operate. Medical staff can select the required medicine by simply rotating the wheel and inject the medicine by controlling the operation of the air pump. This design not only simplifies the operation process, but also reduces the difficulty of operation, allowing medical staff to focus more on the patient's treatment process.

[0023] 3. Through the design of the rotating wheel assembly, the present invention realizes the simultaneous injection of multiple drugs, thereby significantly improving the treatment efficiency. Medical staff can complete the injection of multiple drugs in a short time, reducing the treatment time and discomfort of patients. At the same time, the precise control of the drug piston ensures the stability and continuity of the drug during the injection process, avoiding medical accidents caused by drug leakage or uneven injection. In addition, the sealing and aseptic design of the drug tube also improve the safety of treatment.

[0024] 4. Through precise injection control and multi-drug management, the present invention can reduce the treatment time and discomfort of patients. Medical staff can select appropriate drugs and dosages for injection according to the specific conditions of the patients, thereby improving the treatment experience and comfort of the patients.

[0025] Furthermore, a plurality of locking holes are provided on the outer wall of the rotating wheel near the handle, springs are fixedly connected in the locking holes, locking rods are fixedly connected to the outer ends of the springs, the positions of the locking holes correspond one-to-one to the medicine tubes, and a plurality of grooves are provided on the side of the cylinder near the rotating wheel, the grooves correspond one-to-one to the positions of the locking rods.

[0026] The beneficial effects of the basic solution are: 1. The combined design of the locking rod and the spring provides an additional locking mechanism for the rotating wheel. When the rotating wheel rotates to a specific position, the locking rod will spring into the groove on the barrel under the action of the spring, thereby fixing the position of the rotating wheel and preventing it from rotating due to accidents or vibrations. This design improves the stability of the rotating wheel during the injection process and ensures the accuracy and continuity of drug injection.

[0027] 2. Medical staff only need to rotate the wheel and select the required drug tube, and the locking rod will automatically pop into the corresponding groove to complete the locking of the wheel. This process does not require additional manual operation, which simplifies the operation process. At the same time, the unlocking process is also very simple, just gently turn the locking rod to make it pop out of the groove. This design improves the work efficiency of medical staff.

[0028] 3. The existence of the locking mechanism prevents the wheel from being turned without authorization, thus avoiding drug injection errors or medical accidents caused by misoperation. In addition, the material and strength of the locking rod and spring have been carefully designed and tested to ensure its reliability and durability during long-term use.

[0029] Furthermore, the side wall of the cylinder body close to the rotating wheel and the side wall of the receiving plate close to the rotating wheel are both provided with sealing rings, and the sealing rings correspond to the rotation tracks of the liquid through hole and the air pump outlet respectively.

[0030] The beneficial effects of the basic scheme are: 1. The laying of the sealing ring effectively prevents the leakage of gas and liquid. A tight sealing environment is formed around the vent hole and the liquid hole, ensuring that the gas can smoothly enter the medicine tube when the air pump is working, pushing the medicine piston to move, and also ensuring that the medicine will not leak from the liquid hole or the vent hole during the injection process.

[0031] 2. Improved sealing performance means less loss of drugs during injection, thus improving the accuracy of injection. Medical staff can more accurately control the amount of drug injected to ensure that patients receive the correct treatment dose.

[0032] 3. The sealing ring not only prevents the leakage of internal gas and liquid, but also effectively prevents the entry of external pollutants. In the medical environment, preventing external contamination is crucial to protecting patients from infection.

[0033] Furthermore, a silicone valve is fixedly connected in the through hole of the medicine tube close to the liquid through hole.

[0034] The beneficial effects of the basic solution are: 1. The silicone valve has good elasticity and sealing properties, and can accurately control the flow of the drug. When the air pump injects gas into the drug tube through the vent hole, the silicone valve will automatically adjust the opening according to the pressure of the gas, thereby ensuring that the drug is delivered to the liquid outlet tube through the liquid hole and the side tube at a stable speed. This precise drug flow control is crucial for tumor immunotherapy, which can ensure the effective concentration of the drug in the body and improve the treatment effect.

[0035] 2. The one-way flow characteristics of the silicone valve can effectively prevent liquid backflow. During the injection process, even if pressure fluctuations or unexpected situations occur, the silicone valve can ensure that the drug will not flow back into the medicine tube from the liquid hole, thereby avoiding drug waste and possible contamination.

[0036] 3. The use of silicone valves improves the safety of the injection process. Since silicone valves can accurately control the flow of drugs and prevent liquid backflow, the risk of medical accidents caused by improper drug injection is reduced. In addition, the material and sealing performance of silicone valves also meet the safety standards of medical equipment, ensuring the reliability and safety of the equipment.

[0037] 4. The silicone valve has good compatibility and can be used for the injection of a variety of drugs. This enables the oncology immunotherapy injection device to flexibly respond to different treatment needs and improves the versatility and practicality of the device.

[0038] Furthermore, a plurality of indentations are axially formed on the outer wall of the runner.

[0039] The beneficial effects of the basic solution are: 1. The design of the indentation increases the surface area of ​​the outer wall of the rotating wheel, allowing medical staff to hold it more stably when rotating the rotating wheel. This design reduces operational errors caused by hand slippage and improves the accuracy and safety of the injection process.

[0040] 2. The presence of the indentation makes it easier for medical staff to apply force when rotating the wheel, making it easier to select the required drug tube. This design simplifies the difficulty of operation and improves work efficiency.

[0041] Furthermore, a display is fixedly connected to one side of the cylinder, and the display is connected to the controller signal.

[0042] The beneficial effects of the basic solution are: 1. The display can display key parameters of the injection process in real time, such as drug flow, injection speed, remaining drug volume, etc. This enables medical staff to grasp the injection status at any time, ensure the accuracy and safety of the injection process, and avoid the waste of expensive immune injection drugs. At the same time, the display can also provide fault alarm information, such as drug blockage, abnormal pressure, etc., so that medical staff can take timely measures to deal with it.

[0043] 2. The display presents complex injection parameters in an intuitive digital or graphical form, allowing medical staff to obtain the required information without complicated operations or calculations. This greatly simplifies the operation process and improves work efficiency. Medical staff can also set and adjust parameters through the menu or buttons on the display to achieve precise control of the injection process.

[0044] 3. The display can record key data during the injection process, such as injection time, drug dosage, etc. These data are of great significance for subsequent treatment analysis and effect evaluation.

[0045] Furthermore, a dustproof net is laid on the upper part of one end of the cylinder away from the rotor, and the dustproof net is connected to the air pump input port.

[0046] The beneficial effects of the basic solution are: 1. The dustproof net can effectively block dust, particles and impurities in the external environment and prevent them from entering the cylinder and the inside of the air pump through the air pump inlet. This can keep the inside of the air pump clean and prevent dust and impurities from damaging the air pump.

[0047] 2. The setting of dustproof net can ensure that the air entering the air pump is clean, thus avoiding the contamination of the injection device by dust and impurities. This is very important for oncology immunotherapy, because the purity of the drug is directly related to the treatment effect and patient safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is an axonometric diagram of the oncology immunoinjection device with adjustable dosage in an embodiment of the present invention.

[0049] Figure 2 It is a front cross-sectional view of the oncology immunoinjection device with adjustable dosage in an embodiment of the present invention.

[0050] Figure 3 It is a right view of the oncology immunoinjection device with adjustable dosage in an embodiment of the present invention.

[0051] The figure marks in the drawings of the specification include: 1. handle; 2. button; 3. controller; 4. fixed axis; 5. cylinder; 6. air pump; 7. screw; 8. vent; 9. locking rod; 10. spring; 11. rotating wheel; 12. dent; 13. medicine tube; 14. cleaning tube; 15. sealing ring; 16. silicone valve; 17. liquid hole; 18. side tube; 19. connecting plate; 20. connector; 21. conventional needle; 22. liquid outlet pipe; 23. connecting rod; 24. cleaning piston; 25. push rod; 26. screw nut; 27. medicine piston; 28. dust net; 29. ​​display; 30. filter chamber; 31. filter net. DETAILED DESCRIPTION

[0052] The following is further described in detail through specific implementation methods:

[0053] Example

[0054] Basically as attached Figure 1 , Figure 2 and Figure 3 As shown: a dose-adjustable tumor internal medicine immune injection device, including a handle 1, a plurality of buttons 2 are fixedly connected to one side of the handle 1, a barrel 5 is fixedly connected to the top of the handle 1, a controller 3 is arranged inside the barrel 5, a fixed shaft 4 is coaxially fixedly connected to the center of the barrel 5, an air pump 6 is fixedly connected to the top of the barrel 5, a dustproof net 28 is laid on the upper part of the end of the barrel 5 away from the rotating wheel 11, and the dustproof net 28 is connected to the input port of the air pump 6, and the end of the fixed shaft 4 away from the handle 1 is rotatably connected to a rotating push component, and the front end of the rotating push component is fixedly connected to a joint component, and the rotating push component is used to clean the joint component, and the joint component is used to connect the needle for injection, and the outer periphery of the rotating push component is slidably sleeved with a rotating wheel component, and the rotating wheel component is used to switch the injection drug and drive the rotating push component, and the buttons 2 and the air pump 6 are both connected to the controller signal. A display 29 is fixedly connected to one side of the barrel 5, and the display 29 is connected to the controller 3 signal.

[0055] The rotary pushing assembly includes a screw rod 7, which is rotatably connected to one end of the fixed shaft 4, and the middle part of the screw rod 7 is fixedly connected to the rotating wheel assembly. The part of the screw rod 7 away from the fixed shaft 4 is threadedly sleeved with a screw nut 26, and the outer periphery of the screw nut 26 is sealed with a cleaning tube 14. The end of the cleaning tube 14 close to the screw rod 7 is sealed and slidably connected to the rotating wheel assembly, and a cleaning piston 24 is sealed and sleeved in the middle part of the cleaning tube 14. A plurality of pushing rods 25 are fixedly connected between the side of the cleaning piston 24 close to the screw rod 7 and the screw nut 26, and sterile saline is filled between the cleaning piston 24 and the joint assembly in the cleaning tube 14.

[0056] The joint assembly includes a receiving plate 19, one side of which is slidably connected to the rotating wheel assembly, a liquid outlet pipe 22 is opened in the center of the same side of the receiving plate 19, the liquid outlet pipe 22 penetrates the receiving plate 19, the middle of the liquid outlet pipe 22 is connected to a filter plate 30, the filter plate 30 is radially fixedly connected to a filter screen 31, the pore size of the filter screen 31 is not greater than 0.2μm, one side of the middle of the liquid outlet pipe 22 is connected to a side tube 18, the end of the side tube 18 away from the liquid outlet pipe 22 is connected to the rotating wheel assembly, the side of the receiving plate 19 away from the rotating wheel assembly is fixedly connected to a joint 20, the joint 20 is detachably connected to a conventional needle 21, and a connecting rod 23 is fixedly connected between the outer bottom of the receiving plate 19 and the inner side of the handle 1.

[0057] The rotary wheel assembly includes a rotary wheel 11, one end of the rotary wheel 11 close to the receiving disk 19 is slidably connected to the receiving disk 19, one end of the rotary wheel 11 close to the handle 1 is slidably connected to the cylinder 5 and the center is fixedly connected to the screw rod 7, one end of the rotary wheel 11 close to the handle 1 is provided with a plurality of vent holes 8 on the same circumference, one end of the rotary wheel 11 close to the receiving disk 19 is provided with a plurality of liquid holes 17 on the same circumference, the liquid holes 17 all correspond to the side tubes 18, the vent holes 8 all correspond to the output port of the air pump 6, a plurality of medicine tubes 13 are axially fixedly connected on the same circumference inside the rotary wheel 11, medicine pistons 27 are slidably sleeved in the medicine tubes 13, through holes are provided at both ends of the medicine tubes 13, the through holes at both ends correspond to the vent holes 8 and the liquid holes 17 respectively, and silicone valves 16 are fixedly connected in the through holes of the medicine tubes 13 close to the liquid holes 17. The outer wall of the rotating wheel 11 near the handle 1 has a plurality of locking holes, each of which is fixedly connected with a spring 10, and the outer end of the spring 10 is fixedly connected with a locking rod 9, and the positions of the locking holes correspond to the medicine tubes 13. The side of the cylinder 5 near the rotating wheel 11 has a plurality of grooves, and the grooves correspond to the positions of the locking rods 9. The outer wall of the rotating wheel 11 has a plurality of indentations 12 axially.

[0058] The side wall of the cylinder 5 close to the rotating wheel 11 and the side wall of the receiving plate 19 close to the rotating wheel 11 are both paved with sealing rings 15, and the sealing rings 15 correspond to the rotation tracks of the liquid through hole and the output port of the air pump 6 respectively.

[0059] The specific implementation process is as follows: In tumor immunotherapy, when the doctor needs to inject multiple drugs for the patient, the device can be used to first set the corresponding drug liquid dosage in the numbered drug tube 13 through the button 2 and the display 29, and then start from the first drug tube 13, by holding the handle 1 and pressing the button 2 to start controlling the start of the air pump 6 to suck the drug piston 27 through the vent 8 to suck the drug liquid into the corresponding drug tube 13. The air pump 6 input port is connected to the dustproof net 28 to prevent dust from entering and polluting the device. Then take out the needle and turn the wheel 11. The indentation 12 on the wheel 11 can increase the friction between the hand and the wheel 11 to prevent the hand from slipping, and the cooperation between the locking rod 9 and the groove can help the doctor locate the position of the drug tube 13. During the rotation, the rotating wheel 11 drives the screw rod 7 to rotate, and the connecting rod 23 connects the handle 1 and the receiving plate 19 to ensure the stability of the joint assembly. The screw nut 26 on the screw rod 7 generates axial movement to push the cleaning piston 24 through the push rod 25 to push the sterile saline out of the cleaning tube 14 to clean the needle, so as to avoid the influence of different types of medicines on each other. After rotating to the position of the next medicine tube 13, the absorption is continued until the medicine to be injected this time is absorbed. During the absorption process, the drug impurities are blocked in front of the filter screen 31 to ensure the purity of the medicine to be injected. The sterile saline pushed out by the rotating wheel also has the function of cleaning the filter screen 31, and the drug impurities accumulated in front of the filter screen 31 are washed out to prepare for the subsequent injection.

[0060] When the injection starts, the flexible injection needle can be replaced for the connector 20 or the device can be fixed to reduce the impact of the rotating wheel 11 on the needle. After the injection, the air pump 6 is controlled by the button 2 to push the first medicine to be injected through the side tube 18 into the connector 20 and injected into the patient's body. Then the rotating wheel 11 is rotated. During the rotation of the rotating wheel 11, the medicine in the medicine tube 13 will greatly reduce the possibility of leakage due to the presence of the sealing ring 15, and the silicone valve 16 can also prevent the backflow of external liquid. The rotating wheel 11 rotates the screw rod 7 to push the sterile saline to clean the inside of the needle and enter the patient's body, which has a small impact. Then the second tube of medicine is injected until the multiple drugs are completely injected. The needle is not withdrawn. In this process, there is no need to repeat the injection of multiple medicines, which greatly reduces the pain of injection treatment for patients. During the injection process, the display 29 will display the remaining amount of immune medicine, so that the doctor can always grasp the status of the immune injection device and accurately inject a sufficient amount of immune injection medicine for the patient to avoid the waste of expensive immune injection medicine.

[0061] 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.

[0062] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A dose-adjustable oncology immunotherapy injection device, characterized in that: The invention comprises a handle (1), a plurality of buttons (2) are fixedly connected to one side of the handle (1), a barrel (5) is fixedly connected to the top of the handle (1), a controller (3) is arranged inside the barrel (5), a fixed shaft (4) is coaxially fixedly connected to the center of the barrel (5), an air pump (6) is fixedly connected to the top of the barrel (5), a rotating push component is rotatably connected to the end of the fixed shaft (4) away from the handle (1), a joint component is fixedly connected to the front end of the rotating push component, the rotating push component is used to clean the joint component, the joint component is used to connect to the needle for injection, a rotating wheel component is slidably sleeved on the outer periphery of the rotating push component, the rotating wheel component is used to switch the injection medicine and drive the rotating push component, and the buttons (2) and the air pump (6) are both connected to the controller (3) by signal.

2. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: The rotary push assembly comprises a screw rod (7), the screw rod (7) is rotatably connected to one end of a fixed shaft (4), the middle part of the screw rod (7) is fixedly connected to a rotating wheel assembly, a part of the screw rod (7) away from the fixed shaft (4) is threadedly sleeved with a screw rod nut (26), the outer periphery of the screw rod nut (26) is sealedly sleeved with a cleaning tube (14), one end of the cleaning tube (14) close to the screw rod (7) is sealed and slidably connected to the rotating wheel assembly, a cleaning piston (24) is sealedly sleeved in the middle part of the cleaning tube (14), a side of the cleaning piston (24) close to the screw rod (7) is fixedly connected to the screw rod nut (26) with a plurality of push rods (25), and sterile saline is filled between the cleaning piston (24) and the joint assembly in the cleaning tube (14).

3. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: The joint assembly comprises a receiving plate (19), one side of which is slidably connected to the rotating wheel assembly, a liquid outlet pipe (22) is provided in the center of the same side of the receiving plate (19), the liquid outlet pipe (22) penetrates the receiving plate (19), the middle of the liquid outlet pipe (22) is connected to a filter plate (30), the filter plate (30) is radially fixedly connected to a filter screen (31), the pore size of the filter screen (31) is not greater than 0.2 μm, one side of the middle of the liquid outlet pipe (22) is connected to a side pipe (18), one end of the side pipe (18) away from the liquid outlet pipe (22) is connected to the rotating wheel assembly, a joint (20) is fixedly connected to the side of the receiving plate (19) away from the rotating wheel assembly, the joint (20) is detachably connected to a conventional needle (21), and a connecting rod (23) is fixedly connected between the outer peripheral bottom of the receiving plate (19) and the inner side of the handle (1).

4. The dose-adjustable oncology intravenous immunotherapy injection device according to claim 1, characterized in that: The rotary wheel assembly comprises a rotary wheel (11), wherein one end of the rotary wheel (11) close to the receiving plate (19) is slidably connected to the receiving plate (19), one end of the rotary wheel (11) close to the handle (1) is slidably connected to the cylinder (5) and the center is fixedly connected to the screw rod (7), one end of the rotary wheel (11) close to the handle (1) is provided with a plurality of vent holes (8) on the same circumference, one end of the rotary wheel (11) close to the receiving plate (19) is provided with a plurality of liquid holes (17) on the same circumference, the liquid holes (17) all correspond to the side tubes (18), the vent holes (8) all correspond to the output port of the air pump (6), a plurality of medicine tubes (13) are axially fixedly connected to the same circumference inside the rotary wheel (11), medicine pistons (27) are slidably sleeved inside the medicine tubes (13), through holes are provided at both ends of the medicine tubes (13), and the through holes at both ends correspond to the vent holes (8) and the liquid holes (17) respectively.

5. The dose-adjustable oncology intravenous immunotherapy device according to claim 4, characterized in that: A plurality of locking holes are formed on the outer wall of the rotating wheel (11) near the handle (1), and springs (10) are fixedly connected in the locking holes. The outer ends of the springs (10) are fixedly connected to locking rods (9), and the positions of the locking holes correspond to the medicine tubes (13) one by one. A plurality of grooves are formed on the side of the cylinder (5) near the rotating wheel (11), and the grooves correspond to the positions of the locking rods (9) one by one.

6. The dose-adjustable oncology intravenous immunotherapy injection device according to claim 5, characterized in that: The side wall of the cylinder (5) close to the rotating wheel (11) and the side wall of the receiving plate (19) close to the rotating wheel (11) are both provided with sealing rings (15), and the sealing rings (15) correspond to the rotation tracks of the liquid through hole and the output port of the air pump (6) respectively.

7. The dose-adjustable oncology intravenous immunotherapy injection device according to claim 6, characterized in that: A silica gel valve (16) is fixedly connected in each through hole of the medicine tube (13) close to the liquid through hole (17).

8. The dose-adjustable oncology intravenous immunotherapy device according to claim 7, characterized in that: The outer wall of the rotating wheel (11) is axially provided with a plurality of indentations (12).

9. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: A display (29) is fixedly connected to one side of the cylinder (5), and the display (29) is signal-connected to the controller (3).

10. The dose-adjustable oncology intravenous immunotherapy device according to claim 1, characterized in that: A dustproof net (28) is laid on the upper part of one end of the cylinder (5) away from the rotating wheel (11), and the dustproof net (28) is communicated with the input port of the air pump (6).

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