Propelling catheter device for neurosurgery department
By designing a propulsion catheter device for neurosurgery, using technical means such as drive motors, screws and micro motors, the problems of unsmooth propulsion and insufficient fine control of the catheter are solved, and the precise positioning and smooth propulsion of the catheter are achieved, and the accuracy and success rate of the surgery are improved.
Patent Information
- Application Number
- CN202510328942.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2025-06-13
AI Technical Summary
The existing catheter propulsion equipment has defects in the coordination between the catheter and the catheter sleeve, resulting in poor catheter push, increasing surgical time, and in emergencies, which may affect surgical fluency and success rate. At the same time, the existing equipment lacks fine control and cannot achieve precise adjustment of catheter position, limiting the doctor's freedom of operation during surgery.
A neurosurgery propulsion catheter device is designed to slowly push the catheter body into the catheter sleeve by driving the motor and the screw, and drive the up and down movement of the moving plate by precisely controlling the rotation of the screw. Combined with the micro motor and the rotor in the clamp plate, a smooth and continuous propulsion force is provided to ensure that the catheter reaches the predetermined position accurately.
It improves positioning accuracy during the operation, reduces lag and slippage during the push process, reduces the operation time, provides safer and more efficient surgical treatment, and reduces uncertain factors during the operation, and improves the success rate of the operation.
Smart Images
Figure CN120132185A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and specifically to a catheter propulsion device for neurosurgery. Background Art
[0002] In contemporary medical practice, the application of catheter technology has become an indispensable part of various surgical operations, especially neurosurgical operations. The core of catheter technology lies in the ability to precisely advance the catheter to the target position of the patient for diagnosis, treatment, or endovascular intervention. This process requires a high degree of precision because any slight deviation may lead to poor surgical results or unnecessary risks to the patient. Although existing catheter propulsion devices have greatly improved the precision and safety of surgeries, there are still some significant limitations in practical applications. Firstly, there are defects in the cooperation between the catheter and the catheter sleeve in traditional catheter propulsion devices. Since the catheter may get stuck when moving within the catheter sleeve, this is mainly due to uneven friction between the catheter and the catheter sleeve or insufficient elasticity of the catheter material. Such jamming not only causes the catheter to be pushed smoothly, increasing the operation time, but may also seriously affect the smoothness of the operation in case of emergency, thus reducing the success rate of the surgery. Secondly, existing catheter propulsion devices are insufficient in fine control. In delicate surgeries such as neurosurgery, the catheter needs to be fine-tuned according to the progress of the surgery and the position of the catheter sleeve. However, many existing devices lack sufficient adjustment mechanisms and cannot achieve precise adjustment of the catheter position. This lack of flexibility in adjustment limits the doctor's operating freedom during the surgery and sometimes even requires the doctor to make manual adjustments based on experience. This not only increases the complexity of the surgery but also raises the possibility of operation errors. Summary of the Invention
[0003] In view of the deficiencies of the prior art, the present invention provides a propulsion catheter device for neurosurgery. Through the designed drive motor and lead screw, the catheter body wound around the fixed column inside the housing can be slowly pushed into the catheter sleeve. By precisely controlling the rotation of the lead screw with the drive motor, the up-and-down movement of the moving plate is driven, enabling the moving plate to drive the micro motor inside the clamping plate and the runner at the output end to move up and down through the connecting rod. This design allows the operator to make fine adjustments according to the position of the catheter sleeve, ensuring that the catheter body can accurately reach the predetermined position, thereby improving the positioning accuracy during the operation. At the same time, the combination of the micro motor and the runner in the clamping plate provides a smooth and continuous propulsion force for the catheter body, effectively reducing the jamming and slipping phenomena during the pushing process. This not only improves the pushing efficiency but also reduces the operation time, providing a safer and more efficient surgical treatment for the patient. In addition, the damping layer is arranged at the center of the runner, which increases the friction between the catheter body and the runner. This design significantly improves the stability and controllability of catheter propulsion. Even in a complex or irregular vascular environment, the accurate pushing of the catheter body can be maintained, thereby reducing the uncertain factors during the operation and increasing the success rate of the operation. The doctor can adjust the position of the catheter through simple motor control, which enables the doctor to concentrate more on the operation itself without being distracted by complex mechanical operations, further improving the smoothness and safety of the operation.
[0004] To solve the above technical problems, the present invention provides the following technical solution: A propulsion catheter device for neurosurgery, comprising a housing. Above the left end face of the housing, there is a fixedly connected catheter sleeve. On the right side of the rear end face of the housing, there is a rotatably connected flip cover plate. In the middle of the top of the left end face of the housing, there is a fixedly connected hollow housing. On the top of the hollow housing, there is a fixedly connected drive motor. The output end of the drive motor is fixedly connected with a lead screw. The outside of the lead screw is helically connected with a moving plate. In the middle of the right end face of the moving plate, there is a fixedly connected connecting rod. The end of the connecting rod far from the moving plate is fixedly connected with a clamping plate. Inside the right side of the clamping plate, there is a fixedly connected micro motor. The output end of the micro motor is fixedly connected with a runner. On the middle surface of the runner, there is a fixedly connected damping layer. The surface of the damping layer is in contact with the catheter body.
[0005] Preferably, the inner side of the catheter sleeve is slidably connected to the outer side of the catheter body. The end of the lead screw far from the drive motor is rotatably connected to the middle of the lower part inside the hollow housing. The surface of the moving plate is slidably connected to the inner wall of the hollow housing. The outside of the connecting rod is slidably connected to the middle of the right side inside the hollow housing and the upper left side inside the housing. The edge surface of the clamping plate is slidably connected to the inner wall on the left side of the housing. The rotation of the lead screw can be precisely controlled by the drive motor, thereby driving the up-and-down movement of the moving plate. This design allows the operator to make fine adjustments according to the position of the catheter sleeve, ensuring that the catheter body can accurately reach the predetermined position, thereby improving the positioning accuracy during the operation.
[0006] Preferably, through slots are provided from top to bottom in the middle of the right side inside the hollow shell and above the left side inside the casing, and the width of the through slots matches the cross-sectional diameter of the connecting rod, enabling the moving plate inside the hollow shell to drive the clamping plate inside the casing to move up and down through the connecting rod.
[0007] Preferably, the number of the micro motors and the runners are both two groups, and the micro motors and the runners are both located at the right side inside the clamping plate. The two micro motors on the right side inside the clamping plate are fixed side by side, and the two runners at the output ends of the micro motors are in contact with each other. The micro motor at the front right side inside the clamping plate drives the runner to rotate counterclockwise, and the micro motor at the rear right side inside the clamping plate drives the runner to rotate clockwise, enabling the two runners to synchronously drive the catheter body to advance, and allowing the catheter body to pass through the catheter sleeve and enter the patient's nerve.
[0008] Preferably, an annular groove is provided at the center of the runner, and the damping layer is evenly distributed on the surface of the annular groove at the center of the two runners. The cross-sectional shape and diameter of the annular groove at the center of the runner match those of a semi-circle with the same longitudinal cross-section as the catheter body, enabling the catheter body to be pushed into the catheter sleeve without being squeezed and deformed by the runner.
[0009] Preferably, a turntable is rotatably connected to the lower right side inside the casing. A fixing column is fixedly connected to the top of the turntable. The surface of the fixing column contacts and winds around the surface of the catheter body. Inside the front and rear sides at the edge of the turntable, a pull rod is slidably connected. One end of the pull rod close to the turntable is fixedly connected to a clamping plate. One end surface of the clamping plate close to the pull rod is fixedly connected to a compression spring. One end surface of the clamping plate away from the pull rod is fixedly connected to a rubber layer.
[0010] Preferably, the end of the fixing column away from the turntable is rotatably connected to the upper right side inside the casing. The upper part inside the edge of the turntable is slidably connected to the surface of the tail end of the catheter body. The end of the compression spring away from the clamping plate is fixedly connected to the front and rear ends at the inner edge of the turntable. The inner side of the compression spring is slidably connected to the outer side of the pull rod. The surface of the rubber layer contacts the surface of the tail part of the catheter body, capable of fixing the tail part of the catheter body wound around the surface of the fixing column inside the turntable, preventing the catheter body from having a spring-back effect due to material problems and making it inconvenient to quickly wind the catheter body around the surface of the fixing column.
[0011] Preferably, a dug-out groove is provided inside the edge of the turntable, and the compression spring and the clamping plate are both located at the front and rear sides of the dug-out groove. Through slots are provided on both the front and rear sides of the dug-out groove at the edge of the turntable, and the longitudinal cross-sectional shape and size of the through slots match those of the pull rod, enabling the tail surface of the catheter body to be clamped and fixed by the elastic force of the compression spring, preventing the catheter body from breaking away from the restriction of the fixing column.
[0012] Preferably, a through groove is opened at the top of the groove formed inside the turntable near the edge. The cross-sectional shape of the through groove above the inside of the turntable is the same as that of the catheter body, both being circular. Moreover, the diameter of the cross-section of the through groove is 1.2 times larger than that of the cross-section of the catheter body. The cross-sectional shape of the clamping plate is semi-circular, and the shape of the rubber layer inside the clamping plate matches the shape of the inside of the clamping plate. The thickness of the rubber layer is 0.3 mm. By pulling outward on the two pull rods located on the front and back sides of the turntable, the catheter body can be quickly removed from the turntable, facilitating subsequent connection of other devices to the tail of the catheter body, and improving the smoothness of the doctor's operation to a certain extent.
[0013] Compared with the prior art, the present invention provides a neurosurgical catheter propulsion device, which has the following beneficial effects: 1. Compared with the prior art, through the designed drive motor and lead screw, the present invention can slowly push the catheter body wound around the fixed column inside the housing into the catheter sleeve. By precisely controlling the rotation of the lead screw with the drive motor, the up and down movement of the moving plate is driven, and then the moving plate drives the micro-motor inside the clamping plate and the runner at the output end to move up and down through the connecting rod. This design allows the operator to make fine adjustments according to the position of the catheter sleeve to ensure that the catheter body can accurately reach the predetermined position, thereby improving the positioning accuracy during the operation. At the same time, the combination of the micro-motor and the runner in the clamping plate provides a stable and continuous propulsion force for the catheter body, effectively reducing the jamming and slipping phenomena during the pushing process. This not only improves the pushing efficiency but also reduces the operation time, providing a safer and more efficient surgical treatment for the patient. In addition, the damping layer is arranged at the center of the runner, which increases the friction between the catheter body and the runner. This design significantly improves the stability and controllability of the catheter propulsion. Even in a complex or irregular blood vessel environment, the accurate pushing of the catheter body can be maintained, thereby reducing the uncertain factors during the operation and improving the success rate of the operation. The doctor can adjust the position of the catheter through simple motor control, which enables the doctor to focus more on the operation itself without being distracted by complex mechanical operations, further improving the smoothness and safety of the operation.
[0014] 2. Compared with the prior art, through the designed compression spring and clamping plate, the present invention can fix the tail of the catheter body wound around the surface of the fixed column inside the turntable, avoiding the rebound effect of the catheter body due to material problems, which is inconvenient for quickly winding the catheter body around the surface of the fixed column. At the same time, by pulling outward on the two pull rods located on the front and back sides of the turntable, the catheter body can be quickly removed from the turntable, facilitating subsequent connection of other devices to the tail of the catheter body, and improving the smoothness of the doctor's operation to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic structural diagram of the housing of the present invention rotating horizontally by 180° and opening the flip cover plate; Figure 3 This is a schematic longitudinal sectional structure diagram of the hollow housing of the present invention; Figure 4 This is a schematic overall structure diagram of the turntable of the present invention; Figure 5 This is a schematic longitudinal sectional structure diagram of the turntable of the present invention; Figure 6 This is a schematic overall structure diagram of the clamping plate of the present invention.
[0016] Wherein: 1. Housing; 2. Conduit sleeve; 3. Flip cover plate; 4. Hollow housing; 5. Driving motor; 6. Conduit body; 7. Fixed column; 8. Turntable; 9. Lead screw; 10. Moving plate; 11. Connecting rod; 12. Clamping plate; 13. Micro motor; 14. Runner; 15. Damping layer; 16. Pull rod; 17. Clamping plate; 18. Compression spring; 19. Rubber layer. Specific embodiments
[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1
[0018] Please refer to Figures 1 - 3 as shown: A propulsion catheter device for neurosurgery includes a housing 1. A conduit sleeve 2 is arranged above the left end face of the housing 1. The right side of the rear end face of the housing 1 is connected to a flip cover plate 3 through a hinge. The top of the left end face of the housing 1 is welded with a hollow housing 4. A driving motor 5 is fixed to the top of the hollow housing 4 by bolts. The output shaft of the output end of the driving motor 5 is welded to the top end of a lead screw 9. The outside of the lead screw 9 penetrates through the middle of the inside of a moving plate 10 and is threaded. The middle of the right end face of the moving plate 10 is welded with a connecting rod 11. One end of the connecting rod 11 away from the moving plate 10 is welded with a clamping plate 12. The inside of the right side of the clamping plate 12 is penetrated by a micro motor 13 and fixed by bolts. The output shaft of the output end of the micro motor 13 penetrates through the middle of the inside of a runner 14 and is fixed. A damping layer 15 is arranged on the middle surface of the runner 14. The surface of the damping layer 15 contacts the surface of the conduit body 6. The inner side of the conduit sleeve 2 is slidably connected to the outside of the conduit body 6. The end of the lead screw 9 away from the driving motor 5 is rotatably connected to the middle of the lower part inside the hollow housing 4. The surface of the moving plate 10 is slidably connected to the inner wall of the hollow housing 4. The outside of the connecting rod 11 is slidably connected to the middle of the right side inside the hollow housing 4 and the upper part of the left side inside the housing 1. The edge surface of the clamping plate 12 is slidably connected to the inner wall on the left side of the housing 1.
[0019] In this embodiment: The rotation of the lead screw 9 can be precisely controlled by the drive motor 5, thereby driving the up and down movement of the moving plate 10. This design allows the operator to make fine adjustments according to the position of the catheter sleeve 2, ensuring that the catheter body 6 can accurately reach the predetermined position, thus improving the positioning accuracy during the operation.
[0020] In an alternative embodiment: Through slots extending from top to bottom are provided in the middle of the right side inside the hollow shell 4 and above the left side inside the machine shell 1, and the width of the through slots matches the cross-sectional diameter of the connecting rod 11.
[0021] In this embodiment: The moving plate 10 inside the hollow shell 4 can drive the clamping plate 12 inside the machine shell 1 to move up and down through the connecting rod 11.
[0022] In an alternative embodiment: The number of the micro motors 13 and the runners 14 is two groups each, and the micro motors 13 and the runners 14 are both located at the right side inside the clamping plate 12. The two micro motors 13 on the right side inside the clamping plate 12 are fixed side by side, and the two runners 14 at the output ends of the micro motors 13 are in contact with each other. The micro motor 13 in the front of the right side inside the clamping plate 12 drives the runner 14 to rotate counterclockwise, and the micro motor 13 at the rear of the right side inside the clamping plate 12 drives the runner 14 to rotate clockwise.
[0023] In this embodiment: The two runners 14 can synchronously drive the catheter body 6 to advance, and the catheter body 6 can pass through the catheter sleeve 2 and enter the patient's nerve.
[0024] In an alternative embodiment: An annular groove is provided at the center of the runner 14, and the damping layer 15 is evenly distributed on the surface of the annular groove at the center of the two runners 14. The cross-sectional shape and diameter of the annular groove at the center of the runner 14 match a semi-circular shape with the same longitudinal cross-section as the catheter body 6.
[0025] In this embodiment: The catheter body 6 can be advanced into the catheter sleeve 2 without being squeezed and deformed by the runner 14. Embodiment Two
[0026] Please refer to Figures 4 - 6 as shown: A rotatable turntable 8 is provided on the lower right side inside the casing 1. A fixing post 7 is welded to the top of the turntable 8. The surface of the fixing post 7 contacts and winds around the surface of the conduit body 6. The front and rear sides inside the edge of the turntable 8 are penetrated and slid by a pull rod 16. A clamping plate 17 is welded to the end of the pull rod 16 close to the turntable 8. A compression spring 18 is welded to the end face of the clamping plate 17 close to the pull rod 16. A rubber layer 19 is adhered to the end face of the clamping plate 17 away from the pull rod 16 by glue. The end of the fixing post 7 away from the turntable 8 is rotatably connected to the upper right side inside the casing 1. The upper part inside the edge of the turntable 8 is slidably connected to the surface of the tail end of the conduit body 6. The end of the compression spring 18 away from the clamping plate 17 is fixedly connected to the front and rear ends at the inner edge of the turntable 8. The inner side of the compression spring 18 is slidably connected to the outer side of the pull rod 16. The surface of the rubber layer 19 contacts the surface of the tail part of the conduit body 6.
[0027] In an alternative embodiment: The tail part of the conduit body 6 that can be wound around the surface of the fixing post 7 is fixed inside the turntable 8, avoiding the rebounding effect of the conduit body 6 due to material problems and making it inconvenient to quickly wind the conduit body 6 around the surface of the fixing post 7.
[0028] In this embodiment: Grooves are provided inside the edge of the turntable 8, and the compression spring 18 and the clamping plate 17 are both located on the front and rear sides of the grooves. Through grooves are provided on the front and rear sides of the grooves at the edge of the turntable 8, and the longitudinal section shape and size of the through grooves match the longitudinal section shape and size of the pull rod 16.
[0029] In an alternative embodiment: The tail surface of the conduit body 6 can be clamped and fixed by the elastic force of the compression spring 18, avoiding the conduit body 6 from breaking away from the restriction of the fixing post 7.
[0030] In this embodiment: A through groove is provided at the top of the groove provided inside the turntable 8 near the edge. The cross-section shape of the through groove above the turntable 8 and the cross-section shape of the conduit body 6 are both circular, and the diameter of the cross-section of the through groove is 1.2 times larger than the diameter of the cross-section of the conduit body 6. The cross-section shape of the clamping plate 17 is semi-circular, and the shape of the rubber layer 19 inside the clamping plate 17 matches the shape inside the clamping plate 17. The thickness of the rubber layer 19 is 0.3 mm.
[0031] In this embodiment: By pulling out the two pull rods 16 on the front and rear sides of the turntable 8, the conduit body 6 can be quickly taken out of the turntable 8, facilitating the subsequent connection of other devices to the tail part of the conduit body 6 and improving the smoothness of the doctor's operation to a certain extent.
[0032] Working principle: Before use, wind the required catheter body 6 around the fixed column 7 inside the casing 1. Open the flip cover plate 3 at the rear of the casing 1. First, insert the tail end of the catheter body 6 into the through groove at the top of the turntable 8 inside the casing 1. At this time, the tail of the catheter body 6 presses against the clamping plate 17 at the inner edge of the turntable 8. After being pressed by the catheter body 6, the clamping plate 17 drives the pull rod 16 on the outer end face to slide outward, and the compression spring 18 deforms until the surface of the tail of the catheter body 6 contacts the rubber layer 19 on the inner end face of the clamping plate 17 and reaches the lower position inside the turntable 8. Subsequently, the turntable 8 can be manually rotated. The turntable 8 drives the fixed column 7 at the top to wind the catheter body 6, leaving a section to be restricted by the runner 14 in advance. Insert the top end of the catheter body 6 into the center position inside the runner 14 at the output end of the two micro motors 13. There is an annular groove at the center of the surface of the runner 14, and the top end of the catheter body 6 can pass through the annular groove and be pushed into the catheter sleeve 2 above the left end face of the casing 1. During formal use, insert the catheter sleeve 2 into the patient's nerve for dilating the nerve port. After fixation, turn on the micro motor 13 above the inside of the casing 1. The micro motor 13 drives the runner 14 at the output end to rotate. A damping layer 15 is provided at the edge of the annular groove at the center of the runner 14, which can increase the friction between the runner 14 and the surface of the catheter body 6. When the runner 14 drives the catheter body 6 to advance, the fixed column 7 also drives the turntable 8 to rotate due to the catheter body 6. When the catheter body 6 enters the catheter sleeve 2 and there is an obvious resistance, the doctor can start the drive motor 5 on the left side of the casing 1. The drive motor 5 drives the lead screw 9 at the output end to rotate. The moving plate 10 outside the lead screw 9 moves up and down under the restriction of its own spiral with the lead screw 9, and drives the clamping plate 12 to move up and down through the connecting rod 11. The micro motor 13 fixed inside the clamping plate 12 drives the runner 14 to achieve the purpose of moving up and down. The longitudinal movement of the runner 14 allows the operator to make fine adjustments according to the position of the catheter sleeve 2 to ensure that the catheter body 6 can accurately reach the predetermined position, thereby improving the positioning accuracy during the operation. At the same time, the combination of the micro motor 13 and the runner 14 in the fixing plate provides a stable and continuous pushing force for the catheter body 6, effectively reducing the jamming and slipping phenomena during the pushing process. This not only improves the pushing efficiency but also reduces the operation time, providing a safer and more efficient surgical treatment for the patient.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A propelling catheter device for neurosurgery, comprising a housing (1), characterized in that: A catheter sleeve (2) is fixedly connected to the upper left end surface of the casing (1); a flap plate (3) is rotatably connected to the right side of the rear end surface of the casing (1); a hollow shell (4) is fixedly connected to the middle of the top of the left end surface of the casing (1); a driving motor (5) is fixedly connected to the top of the hollow shell (4); a screw rod (9) is fixedly connected to the output end of the driving motor (5); a moving plate (10) is spirally connected to the outer side of the screw rod (9); a connecting rod (11) is fixedly connected to the middle of the right end surface of the moving plate (10); a clamping plate (12) is fixedly connected to the end of the connecting rod (11) away from the moving plate (10); a micro motor (13) is fixedly connected to the right side of the inside of the clamping plate (12); a rotating wheel (14) is fixedly connected to the output end of the micro motor (13); a damping layer (15) is fixedly connected to the middle surface of the rotating wheel (14); and the surface of the damping layer (15) contacts the catheter body (6).
2. A neurosurgery pusher catheter device according to claim 1, characterized in that: The inner side of the catheter sleeve (2) is slidably connected to the outer side of the catheter body (6); the end of the screw rod (9) away from the drive motor (5) is rotatably connected to the lower middle part of the hollow shell (4); the surface of the movable plate (10) is slidably connected to the inner wall of the hollow shell (4); the outer side of the connecting rod (11) is slidably connected to the middle of the right side of the hollow shell (4) and the upper left side of the casing (1); and the edge surface of the clamping plate (12) is slidably connected to the left inner wall of the casing (1).
3. A neurosurgery pusher catheter device according to claim 1, characterized in that: A through slot extending from top to bottom is provided in the middle of the right side of the hollow shell (4) and in the upper left side of the shell (1), and the width of the through slot matches the cross-sectional diameter of the connecting rod (11).
4. A neurosurgery pusher catheter device according to claim 1, characterized in that: The number of the micro motors (13) and the rotating wheels (14) is two, and the micro motors (13) and the rotating wheels (14) are both located on the right side of the card plate (12). The two micro motors (13) on the right side of the card plate (12) are fixed side by side, and the two rotating wheels (14) at the output ends of the micro motors (13) are in contact with each other. The micro motor (13) on the front right side of the card plate (12) drives the rotating wheels (14) to rotate counterclockwise, and the micro motor (13) on the rear right side of the card plate (12) drives the rotating wheels (14) to rotate clockwise.
5. The neurosurgery pusher catheter device according to claim 1, characterized in that: An annular groove is provided at the center of the rotating wheel (14), and the damping layer (15) is evenly distributed on the surface of the annular groove at the center of the two groups of rotating wheels (14). The cross-sectional shape of the annular groove at the center of the rotating wheel (14) matches a semicircle having the same diameter as the longitudinal cross-sectional shape of the catheter body (6).
6. A neurosurgery pusher catheter device according to claim 1, characterized in that: A turntable (8) is rotatably connected to the right side of the lower part of the casing (1), a fixed column (7) is fixedly connected to the top of the turntable (8), the surface of the fixed column (7) is in contact with and entangled with the surface of the catheter body (6), a pull rod (16) is slidably connected to the front and rear sides of the edge of the turntable (8), a clamping plate (17) is fixedly connected to one end of the pull rod (16) close to the turntable (8), a compression spring (18) is fixedly connected to one end of the clamping plate (17) close to the pull rod (16), and a rubber layer (19) is fixedly connected to one end of the clamping plate (17) away from the pull rod (16).
7. A neurosurgery pusher catheter device according to claim 6, characterized in that: The end of the fixed column (7) away from the turntable (8) is rotatably connected to the upper right side of the housing (1), and the upper inner edge of the turntable (8) is slidably connected to the rear end surface of the catheter body (6). The end of the compression spring (18) away from the clamping plate (17) is fixedly connected to the front and rear ends of the inner edge of the turntable (8), the inner side of the compression spring (18) is slidably connected to the outer side of the pull rod (16), and the surface of the rubber layer (19) is in contact with the rear surface of the catheter body (6).
8. The neurosurgery pusher catheter device according to claim 6, characterized in that: A groove is provided inside the edge of the turntable (8), and the compression spring (18) and the clamping plate (17) are located at the front and rear sides of the groove. Through-type slide grooves are provided at the front and rear sides of the groove at the edge of the turntable (8), and the longitudinal section shape and size of the slide groove match the longitudinal section shape and size of the pull rod (16).
9. The neurosurgery pusher catheter device according to claim 6, characterized in that: A through groove is provided at the top of the groove formed inside the turntable (8) near the edge. The cross-sectional shape of the through groove on the upper part of the turntable (8) is the same as the cross-sectional shape of the catheter body (6), and the diameter of the cross-sectional shape of the through groove is 1.2 times larger than the diameter of the cross-sectional shape of the catheter body (6). The cross-sectional shape of the clamping plate (17) is semicircular, and the shape of the rubber layer (19) on the inner side of the clamping plate (17) matches the shape of the inner side of the clamping plate (17). The thickness of the rubber layer (19) is 0.3 mm.