Arterial perfusion device for radiation intervention

Abstract

An arterial perfusion device for radiation intervention relates to the technical field of medical instruments and comprises a mounting seat, the mounting seat is a rubber seat, the inner side face of the mounting seat is of an arc-shaped structure, a winding drum is fixed to the end of the mounting seat, a guide roller is rotatably connected to an opening of the winding drum, and a winding mechanism is mounted on the inner side of the winding drum. According to the arterial perfusion device for radiation intervention, the situation that blood circulation is affected by too tight constraint or limbs move due to too loose constraint can be avoided, the comfort level and safety of patient treatment are improved, the perfusion angle can be adjusted, wireless remote operation can be achieved, and the arterial perfusion device for radiation intervention is convenient to use. The radiation exposure time of an operator is shortened, the optimal infusion angle can be found, the treatment effect is improved, damage to the infusion tube caused by a traditional fixing mode can be avoided, meanwhile, displacement of the infusion tube is prevented, and accurate conveying of medicine is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an arterial perfusion device for interventional radiology. Background Technology

[0002] Arterial perfusion chemotherapy is a minimally invasive, safe, and less painful tumor treatment method that treats tumors locally. This treatment uses digital technology to expand the doctor's field of vision and extends the doctor's hands with the help of catheters and guidewires. Its incision (puncture point) is only the size of a grain of rice. It can treat many tumor diseases that were previously untreatable, required surgery, or had poor efficacy with medical treatment without cutting human tissue. Arterial perfusion chemotherapy is characterized by being non-surgical, minimally invasive, having a fast recovery, and having good effects. In the prior art, the patent with authorization announcement number CN 217697485 U discloses an arterial perfusion device for interventional radiology. The tightness of its fixation relies entirely on the manual perception and adjustment of medical staff, lacking quantitative standards. It is prone to problems such as being too tight, causing patient discomfort, or being too loose, causing the device to shift. It can only achieve basic fixation functions and cannot adjust and stabilize the posture and tip angle of the catheter. It uses a rigid mechanical structure to directly clamp the catheter. If the force is not properly controlled, there is a potential risk of flattening or damaging the soft catheter. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an arterial perfusion device for interventional radiology. This device can avoid the problems caused by excessively tight restraint affecting blood circulation or excessively loose restraint causing limb movement, thereby improving the patient's treatment comfort and safety. It can adjust the perfusion angle and can be operated wirelessly remotely, reducing the operator's radiation exposure time, helping to find the optimal perfusion angle and improving the treatment effect. It can avoid damage to the perfusion tube caused by traditional fixation methods, while preventing the perfusion tube from shifting and ensuring accurate drug delivery. This can effectively solve the problems in the background technology.

[0004] To achieve the aforementioned objective, the present invention employs the following technical solution: An arterial perfusion device for interventional radiology includes a mounting base, which is a rubber base with an arc-shaped inner surface. A winding drum is fixed to one end of the mounting base, and a guide roller is rotatably connected to the opening of the winding drum. A winding mechanism is installed on the inner side of the winding drum, and a restraining strap is detachably connected to the winding mechanism via a connecting mechanism. An angle adjustment mechanism, a power supply, and a PLC controller are respectively installed on the sides of the mounting base. A wireless transceiver is installed on the PLC controller. A locking mechanism for locking the angle adjustment mechanism is installed on the side of the mounting base. An perfusion tube fixing seat is fixed to the adjustment part of the angle adjustment mechanism, and an perfusion tube fixing unit is installed on the perfusion tube fixing seat. The PLC controller is electrically connected to the power supply, and the wireless transceiver is electrically connected to the PLC controller.

[0005] Furthermore, the winding mechanism includes a torque sensor, a winding shaft, and a stepper motor. The winding shaft is rotatably mounted inside the winding drum. The torque sensor is mounted at the connection between the winding shaft and the winding drum. The stepper motor is mounted in the mounting groove of the winding drum. The output shaft of the stepper motor is fixedly connected to the end of the winding shaft. Both the torque sensor and the stepper motor are electrically connected to a PLC controller.

[0006] Furthermore, the connecting mechanism includes a magnetic male buckle and a magnetic female buckle. The magnetic male buckle is fixed to the end of the binding strap, and the magnetic female buckle is fixed to the side of the take-up shaft. The magnetic female buckle and the magnetic male buckle are magnetically connected.

[0007] Furthermore, the angle adjustment mechanism includes a servo motor, a rotating shaft, and an ear seat. The rotating shaft is rotatably mounted inside the two support seats of the mounting base. The ear seat is fixed on the rotating shaft, and the infusion tube fixing seat is fixed on the top of the ear seat. The servo motor is mounted on the side of the support seat, and the output shaft of the servo motor is fixedly connected to the end of the rotating shaft. The servo motor is electrically connected to the PLC controller.

[0008] Furthermore, the locking mechanism includes an armature block and an electromagnet. The armature block is fixed to the end of the rotating shaft, the electromagnet is magnetically connected to the armature block, and the electromagnet is electrically connected to the PLC controller.

[0009] Furthermore, the locking mechanism also includes a positioning groove and a positioning block. The positioning groove is evenly opened on the armature block, and the positioning block is evenly fixed on the electromagnet. The positioning block and the positioning groove are engaged and inserted into each other.

[0010] Furthermore, the locking mechanism also includes a connecting block, a spring, a stand, and a movable rod. The stand is fixed to the side of the mounting base, the movable rod is movably connected to the stand, an electromagnet is fixed to one end of the movable rod, the connecting block is fixed to the other end of the movable rod, the spring is sleeved on the movable rod, and the spring is disposed between the connecting block and the stand.

[0011] Furthermore, the movable rod is provided with slide bars evenly on its side, and the slide bars are slidably connected to the upright.

[0012] Furthermore, the locking mechanism also includes a bellows, which is sleeved on the spring and positioned between the connecting block and the stand.

[0013] Furthermore, the infusion tube fixing unit includes an air pump, an air bladder, and a pressure sensor. The air bladder is arranged in a ring within the fixing cavity of the infusion tube fixing seat. The pressure sensor is located at the connection point between the infusion tube fixing seat and the air bladder. The air pump is installed on the top of the infusion tube fixing seat and is connected to the inside of the air bladder. Both the air pump and the pressure sensor are electrically connected to a PLC controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This arterial perfusion device for interventional radiology has the following advantages: 1. The winding mechanism drives the restraint strap to wind up, and the restraint strap wraps around the patient's limbs and gradually tightens. It can monitor the restraint force in real time to achieve precise control of the restraint tightness, avoiding excessive tightness that affects blood circulation or excessive looseness that causes limb movement, thereby improving the patient's treatment comfort and safety.

[0015] 2. It can adjust the perfusion angle and can be operated wirelessly remotely, reducing the surgeon's radiation exposure time, helping to find the optimal perfusion angle, and improving the treatment effect.

[0016] 3. The infusion tube is flexibly fixed by the infusion tube fixing unit, which can precisely adjust the fixing force, avoid damage to the infusion tube caused by traditional fixing methods, and prevent displacement of the infusion tube, ensuring accurate drug delivery. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the first three-dimensional cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram at point A; Figure 4 For the present invention Figure 2 A magnified structural diagram at point B; Figure 5 This is a schematic diagram of the three-dimensional second cross-sectional structure of the present invention; Figure 6 This is a partial structural diagram of the movable rod of the present invention.

[0018] In the diagram: 1-Mounting base, 2-Restraint strap, 3-Angle adjustment mechanism, 31-Servo motor, 32-Rotating shaft, 33-Ear seat, 4-Injection tube fixing unit, 41-Air pump, 42-Airbag, 43-Pressure sensor, 5-Connecting mechanism, 51-Magnetic male buckle, 52-Magnetic female buckle, 6-Rewinding mechanism, 61-Torque sensor, 62-Rewinding shaft, 63-Stepper motor, 7-Locking mechanism, 71-Armature block, 72-Positioning groove, 73-Positioning block, 74-Bellwall, 75-Electromagnet, 76-Connecting block, 77-Spring, 78-Standing base, 79-Lever, 8-Power supply, 9-Wireless transceiver, 10-PLC controller, 11-Rewinding drum, 12-Guide roller, 13-Injection tube fixing base. Detailed Implementation

[0019] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0020] Please see Figure 1-6 This embodiment provides a technical solution: an arterial perfusion device for interventional radiology, including a mounting base 1, which is a rubber base with an arc-shaped inner surface. A winding drum 11 is fixed to the end of the mounting base 1, and a guide roller 12 is rotatably connected to the opening of the winding drum 11. A winding mechanism 6 is installed on the inner side of the winding drum 11, and a restraint strap 2 is detachably connected to the winding mechanism 6 through a connecting mechanism 5. An angle adjustment mechanism 3, a power supply 8, and a PLC controller 10 are respectively installed on the side of the mounting base 1. A wireless transceiver 9 is installed on the PLC controller 10. A locking mechanism 7 for locking the angle adjustment mechanism 3 is installed on the side of the mounting base 1. An perfusion tube fixing seat 13 is fixed to the adjustment part of the angle adjustment mechanism 3, and an perfusion tube fixing unit 4 is installed on the perfusion tube fixing seat 13. The PLC controller 10 is electrically connected to the power supply 8, and the wireless transceiver 9 is electrically connected to the PLC controller 10.

[0021] The winding mechanism 6 includes a torque sensor 61, a winding shaft 62, and a stepper motor 63. The winding shaft 62 is rotatably mounted inside the winding drum 11. The torque sensor 61 is installed at the connection between the winding shaft 62 and the winding drum 11. The stepper motor 63 is installed in the mounting groove of the winding drum 11, and its output shaft is fixedly connected to the end of the winding shaft 62. Both the torque sensor 61 and the stepper motor 63 are electrically connected to the PLC controller 10. The inner arc-shaped surface of the mounting base 1 is placed against the patient's limb to be treated (such as the arm). Medical personnel send a restraint command through the operating terminal, which is transmitted to the PLC controller 10 via the wireless transceiver 9. The PLC controller 10 controls the stepper motor 63 to start, driving the winding shaft 62 to rotate. The winding shaft 62 drives the restraint strap 2 to wind up through the connecting mechanism 5. The restraint strap 2 wraps around the patient's limb and gradually tightens. During this process, the torque sensor 61 detects the torque value of the winding shaft 62 in real time and transmits the torque signal to the PLC. The PLC controller 10 compares the detected torque value with a preset threshold (which is set according to the patient's limb size and treatment needs to ensure that the restraint force is moderate, which can fix the limb without affecting blood circulation). When the torque value reaches the preset threshold, the PLC controller 10 controls the stepper motor 63 to stop working, thus completing the limb restraint. It can monitor the restraint force in real time and achieve precise control of the restraint tightness, avoiding excessive restraint that affects blood circulation or excessive restraint that causes limb movement, thereby improving the patient's treatment comfort and safety. The guide roller 12 is used to guide the restraint belt 2 to be wound smoothly on the take-up shaft 62 to prevent deviation and jamming.

[0022] The connecting mechanism 5 includes a magnetic male buckle 51 and a magnetic female buckle 52. The magnetic male buckle 51 is fixed to the end of the restraint strap 2, and the magnetic female buckle 52 is fixed to the side of the take-up shaft 62. The magnetic female buckle 52 and the magnetic male buckle 51 are magnetically connected, and the two can be quickly connected and separated by magnetic force. This detachable connection method facilitates the replacement and cleaning of the restraint strap 2. When the restraint strap 2 is worn or contaminated, medical staff can quickly disassemble and replace it with a new restraint strap 2 to ensure the hygiene and safety of the device.

[0023] The angle adjustment mechanism 3 includes a servo motor 31, a rotating shaft 32, and an ear seat 33. The rotating shaft 32 is rotatably mounted inside the two support seats of the mounting base 1. The ear seat 33 is fixed on the rotating shaft 32. The infusion tube fixing seat 13 is fixed on the top of the ear seat 33. The servo motor 31 is mounted on the side of the support seat. The output shaft of the servo motor 31 is fixedly connected to the end of the rotating shaft 32. The servo motor 31 is electrically connected to the PLC controller 10. The locking mechanism 7 includes an armature block 71 and an electromagnet 75. The armature block 71 is fixed to the end of the rotating shaft 32. The electromagnet 75 is magnetically connected to the armature block 71. The electromagnet 75 is electrically connected to the PLC controller 10. The locking mechanism 7 also includes a positioning groove 72 and a positioning block 73. The positioning groove 72 is evenly opened on the armature block 71, and the positioning block 73 is evenly fixed on the electromagnet. On the 75, the positioning block 73 and the positioning groove 72 are inserted into each other. The locking mechanism 7 also includes a connecting block 76, a spring 77, a stand 78, and a movable rod 79. The stand 78 is fixed to the side of the mounting base 1. The movable rod 79 is movably connected to the stand 78. The electromagnet 75 is fixed to one end of the movable rod 79. The connecting block 76 is fixed to the other end of the movable rod 79. The spring 77 is sleeved on the movable rod 79 and is located between the connecting block 76 and the stand 78. Sliding strips are evenly distributed on the side of the movable rod 79 and are slidably connected to the stand 78. The locking mechanism 7 also includes a bellows 74, which is sleeved on the spring 77 and is located between the connecting block 76 and the stand 78. When it is necessary to adjust the angle of the infusion tube, medical staff input the target angle through the operating terminal. The command is transmitted to the PLC via the wireless transceiver 9. The PLC controller 10 first de-energizes the electromagnet 75, releasing the locking mechanism 7 from locking the rotating shaft 32. Then, it starts the servo motor 31, which drives the rotating shaft 32 to rotate. The rotating shaft 32 causes the lug 33 and the injection tube fixing seat 13 to rotate synchronously. During rotation, the PLC controller 10 obtains the rotation angle in real time through the encoder of the servo motor 31. When the rotation angle reaches the target angle, the PLC... The controller 10 controls the servo motor 31 to stop rotating and simultaneously controls the electromagnet 75 to be energized. The electromagnet 75 is magnetically connected to the armature block 71, and the positioning block 73 is inserted into the positioning groove 72 to lock the rotating shaft 32. When it is necessary to unlock, the electromagnet 75 is de-energized and separated from the controller 10. At this time, the spring 77 returns to its original deformation, and the deformation force of the spring 77 acts on the connecting block 76. The connecting block 76 drives the electromagnet 75 to return to its original position through the movable rod 79. At this time, the positioning block 73 is withdrawn from the positioning groove 72. It can adjust the irrigation angle and can be operated wirelessly remotely, reducing the operator's radiation exposure time, helping to find the optimal irrigation angle, and improving the treatment effect.

[0024] The infusion tube fixing unit 4 includes an air pump 41, an air bladder 42, and a pressure sensor 43. The air bladder 42 is arranged in a ring within the fixing cavity of the infusion tube fixing seat 13. The pressure sensor 43 is located at the connection point between the infusion tube fixing seat 13 and the air bladder 42. The air pump 41 is installed on the top of the infusion tube fixing seat 13 and is connected to the inside of the air bladder 42. Both the air pump 41 and the pressure sensor 43 are electrically connected to the PLC controller 10. When the infusion tube is placed in the fixing cavity of the infusion tube fixing seat 13, medical personnel send a fixing command through an operating terminal. The PLC controller 10 controls the air pump 41 to start, inflating the air bladder 42. The air bladder 42 expands and contacts the outer wall of the infusion tube. The pressure sensor 43 detects the pressure value inside the air bladder 42 in real time and transmits the pressure signal to the PLC controller 10. When the pressure value reaches the preset fixing pressure (this pressure value is set according to the material and outer diameter of the infusion tube to avoid damage to the infusion tube due to excessive pressure or displacement of the infusion tube due to insufficient pressure), the PLC controller 10 activates the fixing mechanism. The controller 10 controls the air pump 41 to stop inflating, thereby achieving stable fixation of the infusion tube. It adopts the airbag 42 inflation fixation method, combined with the closed-loop control of the pressure sensor 43 and the PLC controller 10, which can accurately adjust the fixing force, avoid damage to the infusion tube caused by traditional fixation methods, and prevent the infusion tube from shifting, ensuring accurate drug delivery.

[0025] The working principle of the arterial perfusion device for interventional radiology provided by this invention is as follows: The inner arc-shaped surface of the mounting base 1 is placed against the patient's limb to be treated (such as the arm). Medical staff send a restraint command through the operating terminal, which is transmitted to the PLC controller 10 via the wireless transceiver 9. The PLC controller 10 controls the stepper motor 63 to start, and the stepper motor 63 drives the winding shaft 62 to rotate. The winding shaft 62 drives the restraint strap 2 to wind up through the connecting mechanism 5. The restraint strap 2 wraps around the patient's limb and gradually tightens. During this process, the torque sensor 61 detects the torque value of the winding shaft 62 in real time and transmits the torque signal to the PLC controller 10. The PLC controller 10 compares the detected torque value with a preset threshold (this threshold is set according to the size of the patient's limb and the treatment needs to ensure that the restraint force is moderate, which can fix the limb without affecting blood circulation). When the torque value reaches the preset threshold, the PLC controller 10 controls the stepper motor 63 to stop working, and the limb restraint is completed. The infusion tube is placed in the fixed cavity of the infusion tube fixing seat 13. Medical staff send a fixing command through the operating terminal. The PLC controller 10 controls the air pump 41 to start. The air pump 41 inflates the air bag 42. The air bag 42 expands and contacts the outer wall of the infusion tube. The pressure sensor 43 detects the pressure value in the air bag 42 in real time and transmits the pressure signal to the PLC controller 10. When the pressure value reaches the preset fixed pressure (this pressure value is set according to the material and outer diameter of the infusion tube to avoid damage to the infusion tube due to excessive pressure or displacement of the infusion tube due to insufficient pressure), the PLC controller 10 controls the air pump 41 to stop inflating, so as to achieve stable fixing of the infusion tube. When the infusion tube angle needs to be adjusted, medical staff input the target angle through the operating terminal. The command is transmitted to the PLC controller 10 via the wireless transceiver 9. The PLC controller 10 first de-energizes the electromagnet 75, releasing the locking mechanism 7 from locking the rotating shaft 32. Then, it starts the servo motor 31, which drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the ear seat 33 and the infusion tube fixing seat 13 to rotate synchronously. During the rotation, the PLC controller 10 obtains the rotation angle in real time through the encoder of the servo motor 31. When the rotation angle reaches the target angle, the PLC... The controller 10 controls the servo motor 31 to stop rotating and simultaneously controls the electromagnet 75 to be energized. The electromagnet 75 is magnetically connected to the armature block 71, and the positioning block 73 is inserted into the positioning groove 72 to lock the rotating shaft 32. When it is necessary to unlock, the electromagnet 75 is de-energized and separated from the controller 10. At this time, the spring 77 returns to its original deformation, and the deformation force of the spring 77 acts on the connecting block 76. The connecting block 76 drives the electromagnet 75 to return to its original position through the movable rod 79. At this time, the positioning block 73 exits from the positioning groove 72.

[0026] It is worth noting that the components disclosed in the above embodiments are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The methods by which the PLC controller 10 controls the wireless transceiver 9, torque sensor 61, stepper motor 63, servo motor 31, electromagnet 75, air pump 41 and pressure sensor 43 all adopt existing technologies. The PLC controller 10, wireless transceiver 9, torque sensor 61, stepper motor 63, servo motor 31, electromagnet 75, air pump 41 and pressure sensor 43 are all products currently on the market, and their structures and principles are known technologies. This solution only describes their role in this solution and the technical effects they are intended to produce.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances; for example, a rotary connection can refer to a rotary connection via a bearing.

[0028] The parts of this invention not described in detail are prior art. Although the invention has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of the invention. However, those skilled in the art should understand that various changes in form and detail can be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the invention.

Claims

1. An arterial perfusion device for radio-intervention, comprising a mounting base (1), characterised in that: The mounting seat (1) is a rubber seat, the inner side of the mounting seat (1) is of arc-shaped structure, the end of the mounting seat (1) is fixed with a winding drum (11), the opening of the winding drum (11) is rotatably connected with a guide roller (12), the inner side of the winding drum (11) is mounted with a winding mechanism (6), the winding mechanism (6) is detachably connected with a binding belt (2) through a connecting mechanism (5), the side of the mounting seat (1) is respectively mounted with an angle adjusting mechanism (3), a power supply (8) and a PLC controller (10), the PLC controller (10) is mounted with a wireless transceiver (9), the side of the mounting seat (1) is mounted with a locking mechanism (7) for locking the angle adjusting mechanism (3), the adjusting part of the angle adjusting mechanism (3) is fixed with a perfusion pipe fixing seat (13), the perfusion pipe fixing seat (13) is mounted with a perfusion pipe fixing unit (4), the PLC controller (10) is electrically connected with the power supply (8), and the wireless transceiver (9) is electrically connected with the PLC controller (10).

2. The arterial infusion device for radio-intervention according to claim 1, wherein: The winding mechanism (6) comprises a torque sensor (61), a winding shaft (62) and a stepping motor (63), the winding shaft (62) is rotatably installed on the inner side of the winding drum (11), the torque sensor (61) is installed at the connection between the winding shaft (62) and the winding drum (11), and the stepping motor (63) is installed in the mounting groove of the winding drum (11). The output shaft of the stepping motor (63) is fixedly connected with the end of the winding shaft (62), and the torque sensor (61) and the stepping motor (63) are electrically connected with the PLC controller (10).

3. An arterial infusion device for use in radio-intervention according to claim 1 or 2, characterized in that: The connecting mechanism (5) comprises a magnetic male buckle (51) and a magnetic female buckle (52), the magnetic male buckle (51) is fixed at the end of the binding belt (2), and the magnetic female buckle (52) is fixed on the side of the winding shaft (62). The magnetic female buckle (52) is magnetically connected with the magnetic male buckle (51).

4. The arterial infusion device for use in radio-intervention according to claim 1, characterized in that: The angle adjusting mechanism (3) comprises a servo motor (31), a rotating shaft (32) and an ear seat (33), the rotating shaft (32) is rotatably installed on the inner sides of the two supporting seats of the mounting seat (1), the ear seat (33) is fixed on the rotating shaft (32), the perfusion pipe fixing seat (13) is fixed on the top of the ear seat (33), the servo motor (31) is installed on the side of the supporting seat, the output shaft of the servo motor (31) is fixedly connected with the end of the rotating shaft (32), and the servo motor (31) is electrically connected with the PLC controller (10).

5. The arterial infusion device for radio-intervention according to claim 1 or 4, characterized in that: The locking mechanism (7) comprises an armature block (71) and an electromagnet (75), the armature block (71) is fixed at the end of the rotating shaft (32), the electromagnet (75) is magnetically connected with the armature block (71), and the electromagnet (75) is electrically connected with the PLC controller (10).

6. An arterial infusion device for use in radio-intervention according to claim 5, characterized in that: The locking mechanism (7) further comprises positioning grooves (72) and positioning blocks (73), the positioning grooves (72) are evenly formed on the armature block (71), the positioning blocks (73) are evenly fixed on the electromagnet (75), and the positioning blocks (73) are inserted into the positioning grooves (72) in a matched mode.

7. The arterial infusion device for use in radio-intervention according to claim 5, characterized in that: The locking mechanism (7) further comprises a connecting block (76), a spring (77), a stand (78) and a movable rod (79), the stand (78) is fixed on the side of the mounting base (1), the movable rod (79) is movably connected with the stand (78), the electromagnet (75) is fixed on one end of the movable rod (79), the connecting block (76) is fixed on the other end of the movable rod (79), the spring (77) is sleeved on the movable rod (79), and the spring (77) is arranged between the connecting block (76) and the stand (78).

8. An arterial infusion device for use in radio-intervention according to claim 7, characterized in that: The side surface of the movable rod (79) is uniformly provided with a sliding strip, and the sliding strip is slidably connected with the stand (78).

9. An arterial infusion device for use in radio-intervention according to claim 7, characterized in that: The locking mechanism (7) further comprises a bellows (74), the bellows (74) is sleeved on the spring (77), and the bellows (74) is arranged between the connecting block (76) and the stand (78).

10. The arterial infusion device for use in radio-intervention according to claim 1, characterized in that: The perfusion pipe fixing unit (4) comprises an air pump (41), an air bag (42) and a pressure sensor (43), the air bag (42) is annularly distributed in the fixed cavity in the perfusion pipe fixing base (13), the pressure sensor (43) is arranged at the connecting position of the air bag (42) on the perfusion pipe fixing base (13), the air pump (41) is installed on the top of the perfusion pipe fixing base (13), the air pump (41) is in communication with the inside of the air bag (42), and the air pump (41) and the pressure sensor (43) are electrically connected with the PLC controller (10).

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