Interventional medical instrument pushing device

Abstract

The invention discloses an interventional medical instrument pushing device, and relates to the technical field of medical instruments, the interventional medical instrument pushing device comprises a base, a pushing mechanism, a driving device, a clamping device I, a bidirectional positioning device, a clamping device II and an adjustable protection device; the device is reasonable and simple in structure, low in production cost and convenient to install, the conveying guide pipe and the loading pipe can be accurately positioned through the arranged two-way positioning device, a foundation is provided for follow-up assembly, and great convenience is brought to assembly; a spring in the pushing mechanism provides buffering force, so that the conveying guide pipe and the loading pipe are prevented from being damaged due to collision when approaching each other; according to the clamping device, through friction transmission of specific parts, the conveying guide pipe and the loading pipe are prevented from being damaged while being clamped; the driving device is matched with the adjustable protection device, and when the conveying guide pipe is rotationally screwed into the loading pipe, damage caused by continuous rotation after assembly can be avoided.

Description

Technical field:

[0001] The present invention relates to the technical field of medical devices, and in particular to an interventional medical device pushing device. Background technology:

[0002] Interventional therapy, as a minimally invasive treatment method carried out with the help of modern high-tech means, has achieved rapid development in the medical field in recent years. Under the precise guidance of medical imaging equipment, special catheters, guidewires and other precision instruments can be accurately introduced into the human body to achieve efficient diagnosis and local treatment of lesions in the body. As surgical operations have increasingly stringent requirements for accuracy and minimal invasiveness, interventional therapy has become more and more widely used in surgical operations due to its advantages of less trauma and faster recovery, and has become an indispensable and important part of modern medicine.

[0003] The delivery system of intracavitary interventional devices is a key link in the smooth implementation of interventional treatment, and usually includes at least core components such as delivery catheters, dilators, loaders, hemostatic valves and pushers. In the process of introducing interventional devices from the loader into the delivery catheter, the quality of the connection between the loader and the delivery catheter directly determines whether the device can pass smoothly and the sealing of the entire delivery system. A good connection is not only the basis for ensuring the smooth delivery of the device, but also the key to effectively reducing the risk of air embolism when venting the device, which plays a decisive role in the safety and effectiveness of the operation.

[0004] At present, the loading tube and the delivery catheter in the loader are mostly connected by threaded connection. However, this traditional connection method exposes many problems that are difficult to ignore in actual operation. On the one hand, if the degree of screwing is excessive during the threaded connection, the loading tube is very easy to be squeezed and deformed, which makes it difficult for the instrument to pass smoothly, and thus seriously affects the surgical effect; on the other hand, if the degree of screwing is insufficient, the loading tube and the delivery catheter are not connected in place, which will cause poor sealing, and it is very easy to cause dangerous situations such as air embolism during the exhaust process, which seriously threatens the patient's life safety. In addition, when assembling the loading tube and the delivery catheter, there is a lack of scientific and effective means to determine whether the instrument is assembled in place, and it mainly relies on the doctor's personal experience to make judgments, which undoubtedly greatly increases the risk and uncertainty of the operation; and the existing interventional medical device push device has a relatively poor protection effect during assembly, and it is also more troublesome and inconvenient to assemble. Summary of the invention:

[0005] The purpose of the present invention is to provide an interventional medical device pushing device in order to solve the above problems, thereby solving the problem that the existing interventional medical device pushing device has a relatively poor protection effect during assembly and is also troublesome and inconvenient during assembly.

[0006] In order to solve the above problems, the present invention provides a technical solution: an interventional medical device pushing device, comprising a base, a pushing mechanism, a driving device, a clamping device 1, a bidirectional positioning device, a clamping device 2 and an adjustable protective device; a pushing mechanism is provided inside the upper side of the base; the bottom of the driving device is fixedly connected to a moving component on the upper left side of the pushing mechanism, and a clamping device 1 is provided on the right side of the driving device; the lower outer side of the bidirectional positioning device is fixedly connected to the central inner side of the upper side of the base; the bottom of the adjustable protective device is fixedly connected to the moving component on the upper right side of the pushing mechanism, and a clamping device 2 is provided on the left side of the adjustable protective device.

[0007] Preferably, the specific structure of the pushing mechanism includes a guide groove 1, a movable seat 1, a spring 1, a nut block 1, a left-handed screw, a driven gear 1, a driving gear 1, a motor 1, a driven gear 2, a driving gear 2, a guide groove 2, a right-handed screw, a movable seat 2, a nut block 2 and a spring 2; the guide groove 1 is horizontally opened on the upper left side of the base, a left-handed screw is movably connected to the center of the guide groove 1, and a driven gear 1 is fixedly connected to the right end of the left-handed screw; the outer part of a lower side of the movable seat is horizontally movably connected to the inside of the guide groove 1, and the top of the movable seat is fixedly connected to a driving device; the outer part of the nut block 1 is horizontally movably connected to the left side of the inner part of the lower side of the movable seat, a spring 1 is provided between the right side of the nut block 1 and the right side of the inner part of the lower side of the movable seat, and the threaded hole set in the center of the nut block 1 is connected to the left-handed screw The guide groove 2 is opened transversely on the upper right side of the base, and a right-handed screw is movably connected in the center of the guide groove 2, and a driven gear 2 is fixedly connected at the left end of the right-handed screw; the motor 1 is fixedly connected to the central interior of the lower side of the base, and a driving gear 1 and a driving gear 2 are fixedly connected on the left and right output shafts of the motor 1, respectively, and the driving gear 1 and the driving gear 2 are respectively connected to the driven gear 1 and the driven gear 2; the outer part of the lower side of the movable seat 2 is transversely movably connected to the inside of the guide groove 2, and an adjustable protective device is fixedly connected to the top of the movable seat 2; the outer part of the nut block 2 is transversely movably connected to the right side of the lower side of the movable seat 2, and a spring 2 is provided between the left side of the nut block 2 and the left side of the lower side of the movable seat 2, and the threaded hole arranged in the center of the nut block 2 is connected to the right-handed screw.

[0008] Preferably, the motor 1 is a servo motor or a stepper motor.

[0009] Preferably, the specific structure of the driving device includes a mounting seat 1, a rotating seat 1, a driven gear 3, a motor 2 and a driving gear 3;

[0010] The outer part of the rotating seat 1 is fixedly connected to the right side of the central inner part of the mounting seat 1, the outer part of the left side of the rotating seat 1 is fixedly connected to the driven gear 3, and the right end of the rotating seat 1 is fixedly connected to the clamping device 1;

[0011] The motor 2 is fixedly connected to the lower left side of the mounting seat 1, and the driving gear 3 is fixedly connected to the right output shaft of the motor 2, and the driving gear 3 is connected to the driven gear 3.

[0012] Preferably, the second motor is a servo motor or a stepper motor.

[0013] Preferably, the structure of the clamping device 2 is consistent with that of the clamping device 1, and the specific structure of the clamping device 1 includes a rotating seat, an end face gear, a driven gear 4, a driving gear 4, a driven disk, a driving disk, a rotating head, a spring 3, a thrust ball bearing, a slide groove, a tooth seat and a clamping block; the end face gear is movably connected to the central interior of the rotating seat, and the driven gear 4 is fixedly connected to the left side of the end face gear. Several radial slide grooves are opened around the right side of the rotating seat, and the inside of the slide grooves are fixedly connected to the tooth seat, and the left side teeth of the tooth seat are connected to the right side teeth of the end face gear. In addition, the inner side of the tooth seat is fixedly connected to the clamping block ; There are several driven disks, and several of the driven disks are movably connected to the inside of the rotating seat around, and several of the driven disks are fixedly connected to the central axis inside the four driving gears, and the four driving gears are connected to the four driven gears; there are several active disks, and the inner sides of several of the active disks are movably connected to the inside of the rotating seat around, and several of the inner sides of the active disks are respectively connected to the outer sides of the corresponding driven disks, and several of the outer central axes of the active disks are fixedly connected to the rotating heads; there are several thrust ball bearings, and several of the thrust ball bearings are respectively arranged on the outer sides of the corresponding active disks, and several of the thrust ball bearings are provided with springs three on the outer sides.

[0014] Preferably, an anti-slip layer is provided on the outer side of the rotating head.

[0015] Preferably, the specific structure of the bidirectional positioning device includes motor three, a vertical seat, a vertical screw, a guide hole, a bidirectional positioning baffle and a through hole; the outer lower side of the vertical seat is fixedly connected to the central inner part of the upper side of the base, a through hole is provided inside the upper side of the vertical seat, and a vertical guide hole is opened in the central part of the lower side of the through hole, and the bottom of the vertical seat is fixedly connected to motor three; the vertical screw is movably connected to the center of the guide hole, and the lower center of the vertical screw is fixedly connected to the output shaft of the upper side of motor three; the outer side of the bidirectional positioning baffle is vertically movably connected to the inside of the guide hole, and the threaded hole provided in the central part of the lower side of the bidirectional positioning baffle is connected to the vertical screw. Preferably, the specific structure of the adjustable protective device includes a mounting seat, an adjusting screw, four springs, an internal thread, a chuck, a slot and a rotating seat; the central interior of the mounting seat is movably connected to the rotating seat two, and the external part of the rotating seat two is provided with a slot; the internal thread is arranged inside the upper side of the mounting seat, and the upper side of the internal thread is movably connected to the adjusting screw; the external part of the chuck is movably connected to the inner side of the internal thread, a spring four is arranged between the top of the chuck and the bottom of the adjusting screw, and the external part of the lower side of the chuck is connected to the slot.

[0016] The beneficial effects of the present invention are as follows: (1) The present invention has a reasonable and simple structure, low production cost, and convenient installation. The bidirectional positioning device can accurately position the conveying tube and the loading tube, providing a basis for subsequent assembly, which greatly facilitates the assembly.

[0017] (2) The spring in the pushing mechanism of the present invention provides a buffer force to prevent the delivery tube and the loading tube from being damaged due to collision when they are close to each other.

[0018] (3) The clamping device of the present invention uses friction transmission of specific components to clamp the conveying conduit and the loading tube while avoiding damaging them.

[0019] (4) The driving device of the present invention cooperates with the adjustable protection device to prevent damage caused by continued rotation after assembly when the conveying conduit is rotated and screwed into the loading tube. Description of the drawings:

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 for Figure 1 sectional view of .

[0022] Figure 3 It is a structural diagram of the pushing mechanism.

[0023] Figure 4 A schematic diagram of the structure of the driving device.

[0024] Figure 5 It is a schematic diagram of the structure of the clamping device.

[0025] Figure 6 It is a structural schematic diagram of a bidirectional positioning device.

[0026] Figure 7 It is a structural schematic diagram of the adjustable protection device.

[0027] 1-base; 2-pushing mechanism; 3-driving device; 4-clamping device 1; 5-bidirectional positioning device; 6-clamping device 2; 7-adjustable protection device; 21-guide groove 1; 22-movable seat 1; 23-spring 1; 24-nut block 1; 25-left-hand screw; 26-driven gear 1; 27-driving gear 1; 28-motor 1; 29-driven gear 2; 210-driving gear 2; 211-guide groove 2; 212-right-hand screw; 213-movable seat 2; 214-nut block 2; 215-spring 2; 31-mounting seat one; 32-rotating seat one; 33-driven gear three; 34-motor two; 35-driving gear three; 41-rotating seat; 42-end gear; 43-driven gear four; 44-driving gear four; 45-driven disk; 46-driving disk; 47-rotating head; 48-spring three; 49-thrust ball bearing; 410-slideway; 411-grip seat; 412-clamping block; 51-motor three; 52-vertical seat; 53-vertical screw; 54-guide hole; 55-bidirectional positioning baffle; 56-through hole. Specific implementation method:

[0028] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical scheme: an interventional medical device pushing device, including a base 1, a pushing mechanism 2, a driving device 3, a clamping device 1 4, a bidirectional positioning device 5, a clamping device 2 6 and an adjustable protective device 7; the upper side of the base 1 is provided with a pushing mechanism 2; the bottom of the driving device 3 is fixedly connected to the upper left side moving part of the pushing mechanism 2, and the right side of the driving device 3 is provided with a clamping device 1 4; the lower side of the bidirectional positioning device 5 is fixedly connected to the central inner part of the upper side of the base 1; the bottom of the adjustable protective device 7 is fixedly connected to the upper right side moving part of the pushing mechanism 2, and the left side of the adjustable protective device 7 is provided with a clamping device 2 6.

[0029] like Figure 3As shown, the specific structure of the pushing mechanism 2 includes a guide groove 21, a movable seat 22, a spring 23, a nut block 24, a left-handed screw 25, a driven gear 26, a driving gear 27, a motor 28, a driven gear 29, a driving gear 210, a guide groove 211, a right-handed screw 212, a movable seat 213, a nut block 214 and a spring 215; the guide groove 21 is horizontally opened on the upper left side of the base 1, and the left-handed screw is movably connected to the center of the guide groove 21. Rod 25, and the right end of the left-handed screw 25 is fixedly connected to a driven gear 26; the outer side of the lower side of the movable seat 22 is laterally movably connected to the inside of the guide groove 21, and the top of the movable seat 22 is fixedly connected to a driving device 3; the outer side of the nut block 24 is laterally movably connected to the left side of the lower side of the movable seat 22, and a spring 23 is provided between the right side of the nut block 24 and the right side of the lower side of the movable seat 22. The threaded hole set in the center of the nut block 24 is connected to the left-handed screw 25 is connected; the guide groove 211 is horizontally opened on the upper right side of the base 1, and the guide groove 211 is movably connected to the center of the right-hand screw 212, and the left end of the right-hand screw 212 is fixedly connected to the driven gear 29; the motor 1 28 is fixedly connected to the central interior of the lower side of the base 1, and the output shafts on the left and right sides of the motor 1 28 are respectively fixedly connected to the driving gear 1 27 and the driving gear 2 210, and the driving gear 1 27 and the driving gear 2 210 are respectively connected to the driven gear 1 26 and The movable seat 213 is connected to the driven gear 29; the outer part of the lower side of the movable seat 213 is laterally movably connected to the inside of the guide groove 211, and the top of the movable seat 213 is fixedly connected with an adjustable protection device 7; the outer part of the nut block 214 is laterally movably connected to the right side of the lower side of the movable seat 213, and a spring 215 is provided between the left side of the nut block 214 and the left side of the lower side of the movable seat 213, and the threaded hole arranged in the center of the nut block 214 is connected to the right-handed screw 212.

[0030] Wherein, the motor 1 28 is a servo motor or a stepper motor, so that the motor 1 28 can be easily controlled by existing automation technology.

[0031] like Figure 4 As shown, the specific structure of the driving device 3 includes a mounting seat 1 31, a rotating seat 1 32, a driven gear 3 33, a motor 2 34 and a driving gear 3 35; the rotating seat 1 32 is externally fixedly connected to the right side of the central inner part of the mounting seat 1 31, the driven gear 3 33 is fixedly connected to the left outer part of the rotating seat 1 32, and the right end of the rotating seat 1 32 is fixedly connected to a clamping device 4; the motor 2 34 is fixedly connected to the lower left side of the mounting seat 1 31, and the driving gear 3 35 is fixedly connected to the right output shaft of the motor 2 34, and the driving gear 3 35 is connected to the driven gear 3 33.

[0032] The second motor 34 is a servo motor or a stepper motor, so that the second motor 34 can be easily controlled by existing automation technology.

[0033] like Figure 5 As shown, the structure of the clamping device 2 6 is consistent with that of the clamping device 1 4. The specific structure of the clamping device 1 4 includes a rotating seat 41, an end face gear 42, a driven gear 43, a driving gear 44, a driven disk 45, a driving disk 46, a rotating head 47, a spring 3 48, a thrust ball bearing 49, a slide groove 410, a tooth seat 411 and a clamping block 412; the end face gear 42 is movably connected to the central interior of the rotating seat 41, and the driven gear 43 is fixedly connected to the left side of the end face gear 42. Several radial slide grooves 410 are opened around the right side of the rotating seat 41, and the inside of the slide grooves 410 are fixedly connected to the tooth seat 411, and the left side teeth of the tooth seat 411 are connected to the right side teeth of the end face gear 42. In addition, the inner side of the tooth seat 411 is fixed A clamping block 412 is fixedly connected thereto; there are several driven disks 45, and several of the driven disks 45 are movably connected to the interior around the rotating seat 41, and several of the driven disks 45 are fixedly connected to the inner central axes thereof, and the driving gears 44 are connected to the driven gears 43; there are several active disks 46, and the inner sides of several of the active disks 46 are movably connected to the interior around the rotating seat 41, and several of the inner sides of the active disks 46 are respectively connected to the outer sides of the corresponding driven disks 45, and several of the outer central axes of the active disks 46 are fixedly connected to the rotating heads 47; there are several thrust ball bearings 49, and several of the thrust ball bearings 49 are respectively arranged on the outer sides of the corresponding active disks 46, and several of the thrust ball bearings 49 are provided with springs 3 48 on their outer sides.

[0034] Wherein, an anti-slip layer is provided on the outer side of the rotating head 47 .

[0035] like Figure 6 As shown, the specific structure of the bidirectional positioning device 5 includes a motor three 51, a vertical seat 52, a vertical screw 53, a guide hole 54, a bidirectional positioning baffle 55 and a through hole 56; the lower outer part of the vertical seat 52 is fixedly connected to the central inner part of the upper side of the base 1, a through hole 56 is provided in the upper inner part of the vertical seat 52, and a vertical guide hole 54 is provided in the central part of the lower side of the through hole 56, and the motor three 51 is fixedly connected to the bottom of the vertical seat 52; the vertical screw 53 is movably connected to the center of the guide hole 54, and the lower center of the vertical screw 53 is fixedly connected to the upper output shaft of the motor three 51; the outer part of the bidirectional positioning baffle 55 is vertically movably connected to the inside of the guide hole 54, and the threaded hole provided in the central part of the lower side of the bidirectional positioning baffle 55 is connected to the vertical screw 53.

[0036] like Figure 7As shown, the specific structure of the adjustable protective device 7 includes a mounting seat 71, an adjusting screw 72, a spring four 73, an internal thread 74, a clamping head 75, a slot 76 and a rotating seat two 77; the central interior of the mounting seat 71 is movably connected to the rotating seat two 77, and the rotating seat two 77 is provided with a slot 76 on the outside; the internal thread 74 is arranged on the upper inner side of the mounting seat 71, and the adjusting screw 72 is movably connected to the upper side of the internal thread 74; the clamping head 75 is externally movably connected to the inner side of the internal thread 74, a spring four 73 is provided between the top of the clamping head 75 and the bottom of the adjusting screw 72, and the lower outer side of the clamping head 75 is connected to the slot 76.

[0037] The use state of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost and convenient installation. When in use, first insert the conveying conduit into the clamping device 1 4 from left to right, so that the conveying conduit is against the two-way positioning baffle 55 of the two-way positioning device 5. At this time, the end face gear 42, the driven gear 43, the driving gear 44, the driven disk 45, the driving disk 46 and other components in the rotating seat 41 cooperate with each other, and the driving disk 46 and the driven disk 45 are generated by rotating the rotating head 47, so that the driving disk 46 and the driven disk 45 generate friction, thereby driving the clamping block 412 to lock the conveying conduit, and then insert the loading tube into the clamping device 2 6 from right to left, and also against the two-way positioning baffle 55, and then through the same as the clamping device 1 4 The operation method is to make the clamping device 2 6 lock the loading tube, and then start the motor 3 51. The output shaft of the motor 3 51 drives the vertical screw 53 to rotate. Since the threaded hole arranged in the center of the lower side of the two-way positioning baffle 55 is connected to the vertical screw 53, the two-way positioning baffle 55 will move vertically downward along the guide hole 54, thereby away from the conveying conduit and the loading tube, providing space for subsequent assembly operations. Then start the motor 1 28. The driving gear 1 27 and the driving gear 2 210 on the output shafts on the left and right sides of the motor 1 28 are respectively meshed with the driven gear 1 26 and the driven gear 2 29. The driving gear 1 27 drives the driven gear 1 26 to rotate the left-handed screw 25, and the nut connected to the left-handed screw 25 is engaged. The block 24 moves in the guide groove 21, thereby driving the movable seat 22 and the driving device 3 and the clamping device 4 fixed on the movable seat 22 to move to the left; at the same time, the driving gear 210 drives the driven gear 29 to rotate the right-handed screw 212, and the nut block 214 connected to the right-handed screw 212 moves in the guide groove 211, driving the movable seat 213 and the adjustable protection device 7 and the clamping device 26 fixed on the movable seat 213 to move to the right, thereby driving the conveying conduit and the loading tube to approach each other. In this process, the spring 1 23 and the spring 215 will provide a certain buffer force to prevent the conveying conduit and the loading tube from being damaged due to collision during the approach process, and start Motor 2 34, the driving gear 3 35 on the right output shaft of motor 2 34 is meshed with the driven gear 3 33, driving the rotating seat 1 32 and the clamping device 1 4 fixed on the rotating seat 1 32 to rotate, thereby driving the conveying conduit to rotate and screw into the loading tube. During the rotation of the conveying conduit, since the rotating seat 2 77 of the adjustable protection device 7 is connected with the loading tube (the loading tube can rotate together after the conveying conduit is tightened), the conveying conduit and the loading tube can be prevented from continuing to rotate and causing damage after the assembly is completed. At the same time, the clamping device 1 4 and the clamping device 2 6 are transmitted through the friction between the driven disk 45 and the driving disk 46, so that the conveying conduit and the loading tube can be clamped while avoiding damage to the conveying conduit and the loading tube.

[0038] The control method in the present invention is to start manually or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0039] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0040] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0041] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. An interventional medical device pushing device, characterized in that: It comprises a base (1), a pushing mechanism (2), a driving device (3), a first clamping device (4), a bidirectional positioning device (5), a second clamping device (6) and an adjustable protective device (7); A pushing mechanism (2) is provided inside the upper side of the base (1); The bottom of the driving device (3) is fixedly connected to the moving component on the upper left side of the pushing mechanism (2), and a clamping device (4) is provided on the right side of the driving device (3); The lower outer portion of the bidirectional positioning device (5) is fixedly connected to the central inner portion of the upper side of the base (1); The bottom of the adjustable protective device (7) is fixedly connected to the movable component on the upper right side of the pushing mechanism (2), and a second clamping device (6) is provided on the left side of the adjustable protective device (7).

2. The interventional medical device pushing device according to claim 1, characterized in that: The specific structure of the pushing mechanism (2) comprises a guide groove 1 (21), a movable seat 1 (22), a spring 1 (23), a nut block 1 (24), a left-handed screw rod (25), a driven gear 1 (26), a driving gear 1 (27), a motor 1 (28), a driven gear 2 (29), a driving gear 2 (210), a guide groove 2 (211), a right-handed screw rod (212), a movable seat 2 (213), a nut block 2 (214) and a spring 2 (215); The guide groove 1 (21) is transversely opened on the upper left side of the base (1), a left-hand screw rod (25) is movably connected to the center of the guide groove 1 (21), and a driven gear 1 (26) is fixedly connected to the right end of the left-hand screw rod (25); The lower outer side of the movable seat 1 (22) is laterally movably connected to the inside of the guide groove 1 (21), and the top of the movable seat 1 (22) is fixedly connected to a driving device (3); The outer portion of the nut block (24) is laterally movably connected to the left side of the lower inner portion of the movable seat (22); a spring (23) is provided between the right side of the nut block (24) and the right side of the lower inner portion of the movable seat (22); a threaded hole provided in the center of the nut block (24) is connected to a left-handed screw (25); The second guide groove (211) is transversely opened on the upper right side of the base (1); a right-hand screw rod (212) is movably connected to the center of the second guide groove (211); and a second driven gear (29) is fixedly connected to the left end of the right-hand screw rod (212); The motor 1 (28) is fixedly connected to the central interior of the lower side of the base (1), and the output shafts on the left and right sides of the motor 1 (28) are respectively fixedly connected with a driving gear 1 (27) and a driving gear 2 (210), and the driving gear 1 (27) and the driving gear 2 (210) are respectively connected to a driven gear 1 (26) and a driven gear 2 (29); The lower outer side of the second movable seat (213) is laterally movably connected to the inside of the second guide groove (211), and the top of the second movable seat (213) is fixedly connected with an adjustable protective device (7); The outside of the nut block 2 (214) is laterally movably connected to the right side of the lower inner side of the movable seat 2 (213), and a spring 2 (215) is provided between the left side of the nut block 2 (214) and the left side of the lower inner side of the movable seat 2 (213), and the threaded hole provided in the center of the nut block 2 (214) is connected to the right-handed screw rod (212).

3. The interventional medical device pushing device according to claim 2, characterized in that: The motor 1 (28) is a servo motor or a stepper motor.

4. The interventional medical device pushing device according to claim 1, characterized in that: The specific structure of the driving device (3) includes a mounting seat 1 (31), a rotating seat 1 (32), a driven gear 3 (33), a motor 2 (34) and a driving gear 3 (35); The outside of the rotating seat 1 (32) is fixedly connected to the right side of the central interior of the mounting seat 1 (31), the left side of the rotating seat 1 (32) is fixedly connected to the driven gear 3 (33), and the right end of the rotating seat 1 (32) is fixedly connected to the clamping device 1 (4); The motor 2 (34) is fixedly connected to the lower left side of the mounting seat 1 (31), and a driving gear 3 (35) is fixedly connected to the right output shaft of the motor 2 (34), and the driving gear 3 (35) is connected to the driven gear 3 (33).

5. The interventional medical device pushing device according to claim 4, characterized in that: The second motor (34) is a servo motor or a stepper motor.

6. The interventional medical device pushing device according to claim 1, characterized in that: The structure of the clamping device 2 (6) is consistent with that of the clamping device 1 (4), and the specific structure of the clamping device 1 (4) includes a rotating seat (41), an end gear (42), a driven gear 4 (43), a driving gear 4 (44), a driven disk (45), a driving disk (46), a rotating head (47), a spring 3 (48), a thrust ball bearing (49), a slide groove (410), a tooth seat (411) and a clamping block (412); The central interior of the rotating seat (41) is movably connected to an end face gear (42), and the left exterior of the end face gear (42) is fixedly connected to a driven gear four (43), and the right side of the rotating seat (41) is provided with a plurality of radial slide grooves (410) around, and the inside of the slide grooves (410) is fixedly connected to a clamping tooth seat (411), and the left side teeth of the clamping tooth seat (411) are connected to the right side teeth of the end face gear (42), and the inner side of the clamping tooth seat (411) is fixedly connected to a clamping block (412); There are several driven disks (45), and the several driven disks (45) are movably connected to the inside of the rotating seat (41) respectively. The inner central axis of the several driven disks (45) is fixedly connected with a driving gear four (44), and the driving gear four (44) is connected to the driven gear four (43); There are several active disks (46), the inner sides of several active disks (46) are movably connected to the inside of the rotating seat (41), the inner sides of several active disks (46) are respectively connected to the outer sides of the corresponding driven disks (45), and the outer central axes of several active disks (46) are fixedly connected with rotating heads (47); There are several thrust ball bearings (49), and the several thrust ball bearings (49) are respectively arranged on the outside of the corresponding active disk (46), and springs three (48) are arranged on the outside of the several thrust ball bearings (49).

7. The interventional medical device pushing device according to claim 6, characterized in that: The outer side of the rotating head (47) is provided with an anti-slip layer.

8. The interventional medical device pushing device according to claim 1, characterized in that: The specific structure of the bidirectional positioning device (5) includes a motor three (51), a vertical seat (52), a vertical screw (53), a guide hole (54), a bidirectional positioning baffle (55) and a through hole (56); The lower outer portion of the vertical seat (52) is fixedly connected to the central inner portion of the upper side of the base (1); a through hole (56) is provided in the upper inner portion of the vertical seat (52); and a vertical guide hole (54) is provided in the central portion of the lower side of the through hole (56); and a motor three (51) is fixedly connected to the bottom of the vertical seat (52); The vertical screw rod (53) is movably connected to the center of the guide hole (54), and the lower center of the vertical screw rod (53) is fixedly connected to the upper output shaft of the motor three (51); The exterior of the bidirectional positioning baffle (55) is vertically movably connected to the interior of the guide hole (54), and a threaded hole arranged in the center of the lower side of the bidirectional positioning baffle (55) is connected to the vertical screw rod (53).

9. The interventional medical device pushing device according to claim 1, characterized in that: The specific structure of the adjustable protection device (7) includes a mounting seat (71), an adjusting screw (72), a spring four (73), an internal thread (74), a clamping head (75), a clamping groove (76) and a rotating seat two (77); The central interior of the mounting seat (71) is movably connected to a second rotating seat (77), and a clamping slot (76) is provided on the exterior of the second rotating seat (77); The internal thread (74) is arranged inside the upper side of the mounting seat (71), and the upper side of the internal thread (74) is movably connected to an adjusting screw (72); The outside of the clamp (75) is movably connected to the inside of the internal thread (74), a spring (73) is provided between the top of the clamp (75) and the bottom of the adjusting screw (72), and the outside of the lower side of the clamp (75) is connected to the clamping groove (76).

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