Remote injection power device, injector and injection method for DSA operation

Abstract

The invention discloses a remote injection power device for DSA surgery, which comprises a base, a push plate slidably connected to the base and used for pushing and pulling a piston rod in a second injector, and a power mechanism used for driving the push plate to move, and a limiting groove matched with an outer cylinder of the second injector and capable of limiting the front end and the rear end of the outer cylinder is formed in the base; the device further comprises two electric gate valves, the two electric gate valves can clamp and block the two guide pipes connecting the output pipe and the first injector from the outside, and the electric gate valves and the input end of the power mechanism are electrically connected with a control module. An existing injector and a catheter for injecting microspheres and liquid medicine can be directly assembled on the power device, automation is achieved in the injection process, manual operation is not needed, medical pollution is avoided, the injector and the catheter are disposable and can be abandoned, the injection power device can be recycled, the health of doctors is prevented from being radiated, and the service life of the doctors is prolonged. The accuracy of administration in the injection process is improved, and the clinical application value is high.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a remote injection power device, a syringe and an injection method for DSA surgery. Background Art

[0002] DSA surgery, or Digital Subtraction Angiography, is a type of minimally invasive interventional surgery. Under the guidance of DSA, through angiography, doctors can clearly see the morphology, structure, and lesions of blood vessels, thereby accurately locating the lesions and performing corresponding treatments. This technology not only reduces surgical trauma, but also reduces the risk of complications such as infection and bleeding. Postoperative recovery time and hospitalization time are short for patients. It is widely used in the clinical diagnosis and treatment of benign and malignant diseases such as malignant tumors, hemangiomas, and vascular or stenosis occlusions. Common DSA interventional surgeries include hepatic artery chemoembolization and hepatic artery infusion chemotherapy, which greatly improve the clinical efficacy of malignant tumors and are highly tolerated by patients.

[0003] Drug-eluting Bead Transarterial Chemoembolization (D-TACE) is a relatively new interventional treatment technology, mainly used for the treatment of liver cancer. D-TACE refers to loading chemotherapy drugs into embolic agents (usually microspheres made of polymer materials such as polyvinyl alcohol), and under the guidance of DSA, the microspheres loaded with chemotherapy drugs are accurately delivered to the tumor blood supply vessels in the hepatic artery through a catheter. After reaching the lesion, these microspheres will slowly release chemotherapy drugs and block the blood supply of the tumor through embolism, thereby achieving a dual treatment purpose: on the one hand, "starving" cancer cells through embolism, and on the other hand, "poisoning" cancer cells through chemotherapy drugs. Clinically, D-TACE is mainly used for the treatment of unresectable primary liver cancer, metastatic liver cancer and some hepatic hemangiomas. In D-TACE treatment, the injection speed of drug-loaded microspheres is usually recommended to be controlled at about 1 ml / min, and a pulse injection method is used, while observing the changes in tumor blood supply under DSA fluoroscopy. This injection method can ensure that chemotherapy drugs and drug-loaded microspheres are evenly distributed in tumor blood vessels, while avoiding excessively rapid flow of drugs in blood vessels that may lead to uneven drug distribution or premature release, and therefore has better therapeutic effects.

[0004] The National Health Commission's "Guidelines for the Diagnosis and Treatment of Primary Liver Cancer (2024 Edition)" puts forward the requirement of "fine TACE", which requires super-selective cannulation of the blood supply artery branch of the tumor for embolization. Cone beam CT technology is used during the operation to assist the precise cannulation of the target blood vessel and monitor the efficacy after embolization. Different embolic materials such as drug-loaded microspheres, iodized oil, gelatin sponge or blank microspheres are selected according to the patient's tumor condition, liver function and treatment purpose, and the individualized embolization endpoint is determined. Because how to match the embolic materials during interventional surgery according to the patient's condition and achieve fine drug injection and embolization is a problem that needs to be solved urgently in clinical practice.

[0005] At present, DSA surgery is mainly performed by manual operation. Figure 1 As shown, the existing drug-loaded microsphere injection structure includes a first syringe, a second syringe, a catheter, an output tube and a three-way joint. The first syringe is used to hold the drug-loaded microspheres and the drug solution. The three-way joint connects three catheters, which are respectively connected to the first syringe, the second syringe and the output tube for supplying liquid to the patient. During operation, the drug solution and the drug-loaded microspheres in the first syringe are manually mixed through the second syringe. After the mixing is completed, the drug can be administered to the output tube through the second syringe to deliver the drug to the patient. However, during the entire injection process, it is necessary to observe the flow rate through X-rays, and the method of manually pushing the drug under the radiation will cause the doctor's hands to be exposed to the radiation for a long time.

[0006] Since CT technology generates radiation and can cause harm to doctors, doctors need to wear protective lead clothing and lead hats during surgery, and wear lead glasses when necessary. However, the limbs are still continuously exposed to DSA rays to perform interventional operations, so as to observe the distribution of embolic microspheres in real time and evaluate whether the embolic endpoint has been reached and the surgery is ended. Due to the inevitable drawbacks of manual injection, the speed of injecting drug-loaded microspheres is difficult to control accurately. At the same time, some doctors may use intermittent DSA exposure to reduce radiation damage, and there may be a risk that the embolic endpoint cannot be accurately assessed.

[0007] In order to achieve precise injection of suppositories such as drug-loaded microspheres under DSA, improve the clinical efficacy of surgery, reduce radiation exposure and damage to surgeons during surgery, and ensure the health of surgeons, this application proposes a remote injection power device for DSA surgery that can fully automate drug delivery. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a remote injection power device for DSA surgery, which allows the existing syringes and catheters used for injecting microspheres and liquid medicine to be directly assembled on the power device, and the injection process is automated, without the need for manual operation and without medical pollution. The syringes and catheters can be discarded after one-time use, and the injection power device can be recycled, which not only avoids affecting the health of the doctor, but also improves the accuracy of drug administration during the injection process, and has a high clinical application value.

[0009] In order to achieve the above object, the present invention provides the following technical solutions: A remote injection power device for DSA surgery, comprising a base, the base being provided with a limiting groove that cooperates with the outer barrel of a second syringe and can limit the front and rear ends of the outer barrel, a push plate slidably connected to the base and used to push and pull the piston rod in the second syringe, and a power mechanism for driving the push plate to move; It also includes two electric gate valves, which can respectively clamp and block the two conduits connecting the output tube and the first syringe from the outside, and the electric gate valve and the input end of the power mechanism are both electrically connected to the control module.

[0010] Through the above structure, the existing syringes and catheters used for injecting microspheres and liquid medicine can be directly assembled on the power device, and the injection process is automated, without the need for manual operation and without medical pollution. The syringes and catheters can be discarded after one-time use, and the injection power device can be recycled, which not only avoids affecting the health of doctors, but also improves the accuracy of drug administration during the injection process, and has high clinical application value.

[0011] Preferably, the electric gate valve includes a U-shaped frame, a pressure plate rotatably connected to the U-shaped frame, and a power module for driving the pressure plate to rotate.

[0012] The above structure is very simple in structure, which is more conducive to the construction of high-integration modularization and reduces the production cost of the power device.

[0013] Preferably, the power module comprises a cylinder, and an output end of the cylinder is rotatably connected to a surface of a pressure plate on a side away from the U-shaped frame.

[0014] Through the above structure, the existing DSA syringe can be quickly assembled into the power device in a relatively simple structure, and the assembly operation is also more convenient.

[0015] Preferably, the inner bottom surface of the U-shaped frame has an upward arc-shaped protrusion.

[0016] Through the above structure, the electric gate valve is easy to assemble the catheter, and the blocking effect on the catheter is further improved. At the same time, it is not easy to damage the catheter itself, ensuring that the mixing and administration process of the medicine is smoother and the treatment effect on the patient after administration is better.

[0017] Preferably, the catheter is an elastic braided tube.

[0018] Through the above structure, after the catheter is pressurized and blocked by the electric gate valve for a long time, it can better restore to its original state when it is switched back to the open state, so as not to affect the drug flow rate and flow rate, ensuring the smooth progress of the drug administration process and ensuring that the therapeutic effect after drug administration can more easily reach the set standard.

[0019] Preferably, the power mechanism includes a servo motor and a screw connected to the shaft end of the servo motor, and the screw is threadedly matched with the push plate.

[0020] Through the above structure, more precise control of flow rate, liquid pressure and flow rate can be achieved, and high control accuracy performance is also achieved when mixing medicines. The medicine mixing effect and drug administration effect are more in line with the set standards, thereby improving the treatment effect on patients.

[0021] Preferably, the push plate is provided with a slot cooperating with the rear end of the piston rod so that the rear end of the piston rod can be snapped into the push plate.

[0022] With the above structure, the installation and disassembly of the second syringe are more convenient, and the effectiveness of the push plate driving the piston rod is more reliable.

[0023] Preferably, it also includes an input module and a pressure monitoring module, the output end of the input module is electrically connected to the input end of the control module, the pressure detection module is used to monitor the liquid pressure of the catheter connected to the output pipe, and the output end of the pressure monitoring module is electrically connected to the input end of the control module.

[0024] Through the above structure, it is convenient for doctors to preset the operating parameters of the power device in advance, so that each process can run automatically according to the preset parameters, and the drug administration pressure and drug administration flow rate can be adjusted in real time to ensure the drug administration effect, and then ensure the treatment effect.

[0025] Preferably, the pressure detection module is a pressure sensor for detecting the surface tension of the catheter.

[0026] Through the above structure, it is ensured that the liquid pressure of the catheter can be monitored in real time.

[0027] Preferably, it also includes a communication module electrically connected to the control module.

[0028] Through the above structure, various operating parameters can be input remotely and the operation of various drug administration processes can be controlled, so that the doctor can stay away from the radiation range, and the doctor's health will not be affected when the DSA operation is running normally.

[0029] In order to achieve the above object, the present invention also provides the following technical solutions: A remote injector for DSA surgery is used for the above-mentioned remote injection power device, including a first injector, a second injector, a catheter, a three-way connector and an output tube for supplying fluid to the patient. The catheter is connected to the first injector, the second injector and the output tube respectively through the three-way connector.

[0030] The above structure is convenient for application in the power device, and no additional disposable consumable medical supplies are required.

[0031] Preferably, the first syringes are provided in plurality, the conduit for connecting the first syringes has a plurality of branches, and each of the branches corresponds to an electric gate valve.

[0032] Through the above structure, the process of loading the drug solution is automated, further improving the degree of automated operation of the entire power device, thereby further relieving the doctor's workload and improving the safety of the doctor during DSA surgery.

[0033] In order to achieve the above object, the present invention also provides the following technical solutions: A remote injection method for DSA surgery, used for the above remote injection power device, comprises the following steps: Preset operating parameters, including mixing times, single dosing volume, dosing flow rate, and dosing pressure; Loading the drug-loaded microspheres and the drug solution into a first syringe; The electric gate valve at the conduit connected to the output pipe is controlled to be closed, and the other electric gate valve is opened, and the power mechanism is started to reciprocate according to the number of mixing times, and the second syringe performs a reciprocating suction action; Control the electric gate valve at the conduit connected to the output tube to close, and open the other electric gate valve, and start the power mechanism according to the single dose to drive the second syringe to extract the liquid in the first syringe; The electric gate valve connected to the first syringe is controlled to close, and the other electric gate valve is opened. The power mechanism is started according to the medication flow rate and medication pressure to drive the second syringe to administer medication to the output tube.

[0034] Through the above method, various operating parameters can be input remotely and the operation of various drug administration processes can be controlled, so that the doctor can stay away from the radiation range, and the doctor's health will not be affected when the DSA operation is running normally.

[0035] Compared with the prior art, the present invention has the following beneficial effects: the existing syringes and catheters used for injecting microspheres and liquid medicine can be directly assembled on the power device, and the injection process is automated, without the need for manual operation and without medical pollution. The syringes and catheters can be discarded after one-time use, and the injection power device can be recycled, which not only avoids affecting the health of doctors, but also improves the accuracy of drug administration during the injection process, and has high clinical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the assembly structure of a syringe used in existing DSA surgery; Figure 2 This is a schematic diagram of the three-dimensional assembly structure of the remote injection power device for DSA surgery proposed by the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the remote injection power device for DSA surgery proposed by the present invention; Figure 4 This is a three-dimensional structural schematic diagram of a base in a remote injection power device for DSA surgery proposed by the present invention, mainly showing a power mechanism; Figure 5 This is a control flow chart of the remote injection power device for DSA surgery proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the remote injector for DSA surgery proposed by the present invention; Figure 7 The flowchart of the remote injection method for DSA surgery proposed by the present invention.

[0037] In the figure: 1. First syringe; 2. Second syringe; 21. Piston rod; 22. Outer tube; 3. Catheter; 4. Three-way connector; 5. Output tube; 6. Base; 61. Limiting groove; 7. Push plate; 71. Card slot; 8. Power mechanism; 81. Servo motor; 82. Screw rod; 9. Electric gate valve; 91. U-shaped frame; 911. Arc-shaped protrusion; 92. Press plate; 93. Power module; 10. Control module; 11. Input module; 12. Pressure monitoring module; 13. Communication module. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1: See also Figure 1-5 The present invention provides the following technical solutions: a remote injection power device for DSA surgery, including a base 6, on which is provided a limiting groove 61 that cooperates with the outer tube 22 of the second syringe 2 and can limit the front and rear ends of the outer tube 22, and also includes a push plate 7 slidably connected to the base 6 and used to push and pull the piston rod 21 in the second syringe 2, and a power mechanism 8 for driving the push plate 7 to move; it also includes two electric gate valves 9, which can respectively clamp and block the two conduits 3 connecting the output tube 5 and the first syringe 1 from the outside, and the electric gate valve 9 and the input end of the power mechanism 8 are electrically connected to a control module 10.

[0040] As an optional embodiment of the present invention, the first syringe 1 can be understood as a container, which is the place where the drug-loaded microspheres and the drug solution are first loaded during the DSA surgery. The volume of the first syringe 1 is larger than that of the second syringe 2; the second syringe 2 is a device that repeatedly draws the drug solution and the drug-loaded microspheres in the first syringe 1 to mix, and is used to inject the mixed medicine into the patient's body.

[0041] During the operation, the drug-loaded microspheres and the drug solution are first placed in the first syringe 1, and the piston is inserted. At the same time, the second electric gate valve 9 on the catheter 3 connected to the output tube 5 is closed, and the first electric gate valve 9 on the catheter 3 connected to the first syringe 1 is opened; then the power mechanism 8 is started to make the push plate 7 reciprocate, thereby pushing the piston rod 21 in the second syringe 2, and then cyclically sucking the mixed medicine in the first syringe 1, so that the drug-loaded microspheres and the drug solution are evenly mixed; after the mixing is evenly mixed, the first electric gate valve 9 is opened and the second electric gate valve 9 is closed, and the power mechanism 8 drives the push plate 7 to pull the piston rod 21 in the second syringe 2, so that the mixed medicine in the first syringe 1 is drawn into the second syringe 2; the first electric gate valve 9 is closed and the second electric gate valve 9 is opened, and the power mechanism 8 drives the push plate 7 to push the piston rod 21 in the second syringe 2, so that the medicine in the second syringe 2 is output to the output tube 5, and then enters the patient's body; in this way, the mixed medicine in the first syringe 1 is cyclically drawn out and pushed into the output tube 5, realizing the drug administration process for the patient. In this way, the mixing process and the administration process of the medicine can be realized automatically without manual operation, so the doctor's hands can be fundamentally prevented from being exposed to radiation, which will not affect the doctor's health; and, during the entire process, the medicine can only contact the first syringe 1, the second syringe 2, the output tube 5, the catheter 3, and the three-way connector 4, and does not contact the power mechanism 8, the base 6 and the electric gate valve 9, and does not contact the power device. Therefore, all the equipment used in the existing DSA surgery is still used as disposable consumables, and no new medical pollution occurs, and the power device can be used in a recycling manner.

[0042] In the present technical solution, the electric gate valve 9 is selected to squeeze the conduit 3 from the outside to achieve the blocking of the conduit 3, so there will be no medical contact, no medical pollution, and indirectly ensure the effectiveness of the recycling of the power device; in addition, the entire power device can actually be integrated together to form a modular design, such as the solution described later, which is also more convenient for storage, storage and disinfection, etc. The specific choice of the power mechanism 8 can be a servo motor 81 plus a screw 82 as described later, or a cylinder, or other mechanisms that can achieve reciprocating motion. The present technical solution does not make specific limitations on this. It should be understood that any specific implementation method that can drive the push plate 7 to move reciprocatingly falls within the protection scope of the power mechanism 8.

[0043] Through the above structure, the existing syringe and catheter 3 used for injecting microspheres and liquid medicine can be directly assembled on the power device, and the injection process is automated, without manual operation and without medical pollution. The syringe and catheter 3 can be discarded after one-time use, and the injection power device can be recycled, which not only avoids affecting the health of the doctor, but also improves the accuracy of drug administration during the injection process, and has high clinical application value.

[0044] like Figure 2-3 As shown, the electric gate valve 9 includes a U-shaped frame 91, a pressing plate 92 rotatably connected to the U-shaped frame 91, and a power module 93 for driving the pressing plate 92 to rotate.

[0045] As an optional implementation scheme of the present invention, as mentioned above, the existing DSA syringe is configured on the power device as a complete set. If the electric gate valve 9 adopts a more conventional method, it is necessary to pass the catheter 3 through each electric gate valve 9 in turn, so there are still inconveniences in operation during assembly. However, a U-shaped frame 91 is used as a supporting carrier, and the power module 93 drives the pressure plate 92 to rotate on the U-shaped frame 91 so that the catheter 3 can be squeezed until it is blocked. It can be achieved that the catheter 3 can be directly placed into the electric gate valve 9 from the side without the operation of passing the catheter 3, so the assembly process is more convenient.

[0046] The power module 93 may be the cylinder described later, or other specific methods capable of reciprocatingly driving the pressure plate 92 to rotate. The technical solution does not make any specific limitation on this.

[0047] Through the above structure, the existing DSA syringe can be quickly assembled into the power device in a relatively simple structure, and the assembly operation is also more convenient.

[0048] like Figure 2-3As shown, the power module 93 includes a cylinder, and the output end of the cylinder is rotatably connected to the surface of the pressing plate 92 away from the U-shaped frame 91.

[0049] As an optional implementation scheme of the present invention, the cylinder drives the pressure plate 92 to rotate on the U-shaped frame 91, which is a relatively common technical solution. When applied to this technical solution, the advantage is that the structure is very simple, which is more conducive to the construction of highly integrated modularization and reduces the production cost of the power device.

[0050] The above structure is very simple in structure, which is more conducive to the construction of high-integration modularization and reduces the production cost of the power device.

[0051] like Figure 3 As shown, the inner bottom surface of the U-shaped frame 91 has an upward arc-shaped protrusion 911.

[0052] As an optional implementation scheme of the present invention, since the pressure plate 92 is assembled on the U-shaped frame 91 in a rotating manner, if the position where the pressure plate 92 and the U-shaped frame 91 are engaged is a flat surface, then the shear force on the catheter 3 near the rotation axis of the pressure plate 92 is higher than that on the other side (or vice versa), which leads to an unbalanced force on the catheter 3, and it is easy for the electric gate valve 9 to stop the catheter 3 poorly, or the catheter 3 is easily damaged. However, the U-shaped frame 91 and the pressure plate 92 are both in an arc-shaped design that is close to each other, which ensures that the shear force on the surface of the catheter 3 is relatively uniform, so it is not easy to be damaged, and the effect of the catheter 3 being stopped is better, ensuring that the mixing of the medicine and the administration process are smoother, and the therapeutic effect on the patient after administration is also better.

[0053] Through the above structure, the electric gate valve 9 is easy to assemble the catheter 3, and the blocking effect on the catheter 3 is further improved. At the same time, it is not easy to damage the catheter 3 itself, ensuring that the mixing and administration process of the medicine is smoother and the therapeutic effect on the patient after administration is better.

[0054] like Figure 2 As shown, the catheter 3 is an elastic braided tube.

[0055] As an optional implementation scheme of the present invention, the elastic braided tube usually has high resilience and wear resistance. In the prior art, especially in the medical field, it has been used for pressurized liquid delivery by peristaltic pumps; applied to the present technical solution, it can be pressurized and blocked by the electric gate valve 9 for a long time. When it is switched to a pass state again, the catheter 3 can better restore its original state without affecting the drug flow rate and flow rate, ensuring the smooth progress of the drug administration process and ensuring that the therapeutic effect after drug administration can more easily reach the set standard.

[0056] Through the above structure, after the catheter 3 is pressurized and blocked for a long time by the electric gate valve 9, it can better restore to its original state when it is switched back to the open state, so as not to affect the medication flow rate and flow rate, thereby ensuring the smooth progress of the medication process and ensuring that the therapeutic effect after medication can more easily reach the set standard.

[0057] like Figure 4 As shown, the power mechanism 8 includes a servo motor 81 and a screw rod 82 connected to the shaft end of the servo motor 81 , and the screw rod 82 is threadedly matched with the push plate 7 .

[0058] As an optional implementation scheme of the present invention, the method of driving the screw sleeve by the servo motor 81 and the screw rod 82 is already a relatively mature technical solution, and has strong adaptability in precision control; when applied to this technical solution, it can achieve more accurate control of flow rate, liquid pressure and flow rate, and also has higher control accuracy performance when mixing medicines, so that the mixing effect of the medicines and the drug administration effect can be more in line with the set standards, thereby indirectly improving the treatment effect on patients.

[0059] Through the above structure, more precise control of flow rate, liquid pressure and flow rate can be achieved, and high control accuracy performance is also achieved when mixing medicines. The medicine mixing effect and drug administration effect are more in line with the set standards, thereby improving the treatment effect on patients.

[0060] like Figure 4 As shown, the push plate 7 is provided with a slot 71 that cooperates with the rear end of the piston rod 21 so that the rear end of the piston rod 21 can be snapped into the push plate 7.

[0061] The above structure makes it easier to install and remove the second syringe 2, and the effectiveness of the push plate 7 in driving the piston rod 21 is more reliable.

[0062] like Figure 2 and Figure 5 As shown, it also includes an input module 11 and a pressure monitoring module 12. The output end of the input module 11 is electrically connected to the input end of the control module 10. The pressure detection module is used to monitor the liquid pressure of the catheter 3 connected to the output pipe 5. The output end of the pressure monitoring module 12 is electrically connected to the input end of the control module 10.

[0063] As an optional implementation scheme of the present invention, the input module 11 is used to preset operating parameters, including the number of mixing times, the single dosage, the dosage flow rate, and the dosage pressure. The input module 11 can specifically use a touch screen, buttons, etc., and the present technical solution does not make specific limitations on this. For example, the speed of intermittent (pulse) dosage is set through the input module 11 (such as 1mL / Min); the pressure detection module can monitor the output pressure of the drug solution in real time and feed it back to the control module 10, so that the dosage flow rate and dosage pressure can be adjusted in real time to maintain the dosage flow rate and dosage pressure within an appropriate range to ensure the dosage effect.

[0064] Through the above structure, it is convenient for doctors to preset the operating parameters of the power device in advance, so that each process can run automatically according to the preset parameters, and the drug administration pressure and drug administration flow rate can be adjusted in real time to ensure the drug administration effect, and then ensure the treatment effect.

[0065] Furthermore, the pressure detection module is a pressure sensor, which is used to detect the surface tension of the catheter 3 .

[0066] As an optional implementation scheme of the present invention, it is a relatively mature existing technical solution to detect the surface tension of the catheter 3 by a pressure sensor and then obtain the real-time pressure of the medicine in the catheter 3. The specific implementation scheme can directly use the strain gauge and the intermediate slide rail to stick to the surface of the catheter 3. When the surface tension of the catheter 3 changes, the pressure change of the liquid in the catheter 3 can be output.

[0067] Through the above structure, it is ensured that the liquid pressure of the catheter 3 can be monitored in real time.

[0068] like Figure 5 As shown, a communication module 13 electrically connected to the control module 10 is also included.

[0069] As an optional implementation scheme of the present invention, the communication module 13 can realize remote input of various operating parameters and remote real-time control of the operation of various drug administration processes, so that the doctor can stay away from the radiation range, and the health of the doctor will not be affected when the DSA operation is running normally. The communication module 13 can be a physical cable or a wireless communication module, and this is not specifically limited in the present technical solution.

[0070] Through the above structure, various operating parameters can be input remotely and the operation of various drug administration processes can be controlled, so that the doctor can stay away from the radiation range, and the doctor's health will not be affected when the DSA operation is running normally.

[0071] Embodiment 2: See also Figure 1The present invention provides the following technical solution: a remote injector for DSA surgery, a remote injection power device used in Example 1, comprising a first injector 1, a second injector 2, a catheter 3, a three-way connector 4 and an output tube 5 for supplying liquid to a patient, wherein the catheter 3 is connected to the first injector 1, the second injector 2 and the output tube 5 respectively through the three-way connector 4.

[0072] As an optional embodiment of the present invention, the syringe is an injection method widely used in existing DSA surgeries. This technical solution will not go into too much detail about this. It should be understood that the existing syringe can be directly assembled into the power device in Example 1 to cooperate in realizing the drug mixing and drug administration process.

[0073] The above structure is convenient for application in the power device, and no additional disposable consumable medical supplies are required.

[0074] like Figure 6 As shown, the first syringe 1 is provided with a plurality of them, and the conduit 3 for connecting the first syringe 1 has a plurality of branches, and each branch corresponds to an electric gate valve.

[0075] As an optional embodiment of the present invention, during the operation, one embolic agent is superimposed on another embolic agent, and a flushing tube is required in the middle. The catheter 3 with multiple branches can be understood as an N-branch hose, such as a 3-branch hose, which can be connected to 3 different drugs, so that the doctor can stay away from the range of radiation during the drug loading process.

[0076] Through the above structure, the process of loading the drug solution is automated, further improving the degree of automated operation of the entire power device, thereby further relieving the doctor's workload and improving the safety of the doctor during DSA surgery.

[0077] Embodiment 3: See also Figure 7 The present invention provides the following technical solution: a remote injection method for DSA surgery, used for the remote injection power device in Example 1, comprising the following steps: Preset operating parameters, including mixing times, single dosing volume, dosing flow rate, dosing pressure, and dosing times; Loading the drug-loaded microspheres and the drug solution into the first syringe 1; The electric gate valve 9 at the conduit 3 connected to the output tube 5 is controlled to be closed, and the other electric gate valve 9 is opened, and the power mechanism 8 is started to reciprocate according to the mixing times, and the second syringe 2 performs a reciprocating suction action; The electric gate valve 9 at the conduit 3 connected to the output tube 5 is controlled to be closed, and the other electric gate valve 9 is opened, and the power mechanism 8 is started according to the single dose to drive the second syringe 2 to extract the liquid in the first syringe 1; The electric gate valve 9 connected to the first syringe 1 is controlled to be closed, and the other electric gate valve 9 is opened. The power mechanism 8 is started according to the medication flow rate and medication pressure to drive the second syringe 2 to administer medication to the output tube 5.

[0078] Through the above method, various operating parameters can be input remotely and various drug administration processes can be controlled, so that doctors can stay away from radiation and their health will not be affected when DSA surgery is running normally. In addition, the total amount of medication can be calculated and counted based on the single medication amount and the number of medications, so as to monitor the medication situation of the patient and facilitate the doctor to adjust the next medication amount according to the patient's condition.

[0079] The working principle and use process of the present invention are as follows: during surgery, the drug-loaded microspheres and the drug solution are first placed in the first syringe 1, and the piston is inserted. At the same time, the second electric gate valve 9 on the catheter 3 connected to the output tube 5 is in a closed state, and the first electric gate valve 9 on the catheter 3 connected to the first syringe 1 is in an open state; then the power mechanism 8 is started to make the push plate 7 reciprocate, thereby pushing the piston rod 21 in the second syringe 2, and then cyclically sucking the mixed medicine in the first syringe 1, so that the drug-loaded microspheres and the drug solution are evenly mixed; after the mixing is evenly mixed, the first electric gate valve 9 is opened and the second electric gate valve 9 is closed, and the power mechanism 8 drives the push plate 7 to pull the piston rod 21 in the second syringe 2, so that the mixed medicine in the first syringe 1 is drawn into the second syringe 2; the first electric gate valve 9 is closed and the second electric gate valve 9 is opened, and the power mechanism 8 drives the push plate 7 to push the piston rod 21 in the second syringe 2, so that the medicine in the second syringe 2 is output to the output tube 5, and then enters the patient's body; in this way, the mixed medicine in the first syringe 1 is cyclically drawn out and pushed into the output tube 5, realizing the drug administration process for the patient.

[0080] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A remote injection power device for DSA surgery, comprising a base, characterized in that: The base is provided with a limiting groove which cooperates with the outer tube of the second syringe and can limit the front and rear ends of the outer tube, and also includes a push plate which is slidably connected to the base and is used to push and pull the piston rod in the second syringe, and a power mechanism for driving the push plate to move; It also includes two electric gate valves, which can respectively clamp and block the two conduits connecting the output tube and the first syringe from the outside, and the electric gate valve and the input end of the power mechanism are both electrically connected to the control module.

2. The remote injection power device for DSA surgery according to claim 1, characterized in that: The electric gate valve comprises a U-shaped frame, a pressing plate rotatably connected to the U-shaped frame, and a power module for driving the pressing plate to rotate.

3. The remote injection power device for DSA surgery according to claim 2, characterized in that: The power module comprises a cylinder, and the output end of the cylinder is rotatably connected to the surface of the pressing plate away from the U-shaped frame.

4. The remote injection power device for DSA surgery according to claim 2, characterized in that: The inner bottom surface of the U-shaped frame has an upward arc-shaped protrusion.

5. The remote injection power device for DSA surgery according to claim 1, characterized in that: The catheter adopts an elastic braided tube.

6. The remote injection power device for DSA surgery according to claim 1, characterized in that: The power mechanism comprises a servo motor and a screw connected to the shaft end of the servo motor, and the screw is threadedly matched with the push plate.

7. The remote injection power device for DSA surgery according to claim 6, characterized in that: The push plate is provided with a slot matched with the rear end of the piston rod so that the rear end of the piston rod can be snapped into the push plate.

8. The remote injection power device for DSA surgery according to claim 1, characterized in that: It also includes an input module and a pressure monitoring module, the output end of the input module is electrically connected to the input end of the control module, the pressure detection module is used to monitor the liquid pressure of the catheter connected to the output pipe, and the output end of the pressure monitoring module is electrically connected to the input end of the control module.

9. A remote injector for DSA surgery, used for the remote injection power device according to any one of claims 1 to 8, characterized in that: The invention comprises a first syringe, a second syringe, a catheter, a three-way joint and an output tube for supplying liquid to a patient. The catheter is respectively connected with the first syringe, the second syringe and the output tube through the three-way joint.

10. A remote injection method for DSA surgery, using the remote injection power device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Preset operating parameters, including mixing times, single dosing volume, dosing flow rate, and dosing pressure; Loading the drug-loaded microspheres and the drug solution into a first syringe; The electric gate valve at the conduit connected to the output pipe is controlled to be closed, and the other electric gate valve is opened, and the power mechanism is started to reciprocate according to the number of mixing times, and the second syringe performs a reciprocating suction action; Control the electric gate valve at the conduit connected to the output tube to close, and open the other electric gate valve, and start the power mechanism according to the single dose to drive the second syringe to extract the liquid in the first syringe; The electric gate valve connected to the first syringe is controlled to close, and the other electric gate valve is opened. The power mechanism is started according to the medication flow rate and medication pressure to drive the second syringe to administer medication to the output tube.

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