Clamping and pushing device capable of adjusting guide wire
By designing an adjustable guidewire clamping and pushing device, the problems of poor guidewire diameter adaptability and inconvenient disinfection in traditional vascular interventional surgery have been solved, achieving stable guidewire advancement and rotation, improving surgical quality and protecting the health of doctors.
Patent Information
- Application Number
- CN202422999249.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In current vascular interventional surgeries, traditional guidewire advancement mechanisms cannot adapt to guidewires of various diameters and are not conducive to preoperative sterilization, resulting in unstable surgical quality and damage to the health of doctors.
Design an adjustable guide wire clamping and pushing device. Through a rotary mechanism and a wire feeding mechanism, it can adaptively clamp guide wires of different diameters. It also adopts a detachable driven roller module and an electric telescopic rod to ensure stable advance and rotation of the guide wire.
It enables adaptive clamping of guidewires of different diameters, simplifies the disinfection process, reduces operation time and patient discomfort, and at the same time, its simple structure, small size, and light weight improve the reliability and flexibility of the operation.
Smart Images
Figure CN223831575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vascular interventional robot technology, and in particular to an adjustable guidewire clamping and pushing device. Background Technology
[0002] Interventional vascular surgery is a technique that involves inserting a guidewire or catheter into a blood vessel and directly reaching the lesion under the guidance of medical imaging and electromagnetic equipment. Traditional minimally invasive vascular surgery requires the surgeon to rotate and deliver the guidewire or catheter in the clinic before inserting it into the patient's body. In this environment, the surgeon is exposed to X-rays for extended periods, which can harm their health. Furthermore, prolonged surgical procedures can lead to fatigue and inconsistent surgical quality.
[0003] The development of vascular interventional robotic technology will greatly solve or improve the problems described above. The main function of vascular interventional robots is to mimic the surgeon's operation to deliver and rotate guidewires or catheters in human blood vessels. Most current guidewire advancement mechanisms have the following drawbacks: they cannot adapt to guidewires of various diameters and are not conducive to preoperative sterilization.
[0004] Therefore, an adjustable guide wire clamping and pushing device was developed to solve the above problems. Utility Model Content
[0005] This invention proposes an adjustable guidewire clamping and pushing device to solve the problem that existing devices cannot adapt to guidewires of various diameters and are not conducive to preoperative disinfection.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] An adjustable guide wire clamping and pushing device includes:
[0008] A rotary mechanism includes a rotary base, a rotary motor, an adapter plate, and a rotary shaft. The rotary motor is fixed on the rotary base, the adapter plate is connected to the output structure of the rotary motor, and the rotary shaft passes through the central hole of the rotary motor and is connected to the adapter plate.
[0009] The wire feeding mechanism includes a wire feeding base, a driven transmission module, an active transmission module, a driven roller module, an active roller module, a drive motor, and an electric telescopic rod. The driven roller module is drivenly connected to the top of the driven transmission module, and the active roller module is drivenly connected to the top of the active transmission module. The driven transmission module and the active transmission module are respectively horizontally slidably connected to the wire feeding base. The driven transmission module and the active transmission module are connected through the electric telescopic rod, and the drive motor is drivenly connected to the active transmission module.
[0010] Specifically, both the driven and active transmission modules include a module housing, a pulley, a drive shaft, and an upper friction disk. The drive shaft is rotatably disposed within the module housing. The upper end of the drive shaft extends to connect with the top of the module housing and the upper friction disk, while the lower end extends to connect with the bottom of the module housing and the pulley. Both the driven and active roller modules include a module housing, a roller, a rotating shaft, and a lower friction disk. The roller is rotatably disposed within the module housing via the rotating shaft. The roller protrudes from an opening on one side of the module housing. The opening sides of the driven and active roller modules are arranged opposite to each other. The lower end of the rotating shaft extends to connect with the bottom of the module housing and the lower friction disk. When the upper friction disk rotates, it drives the lower friction disk to rotate through friction.
[0011] Furthermore, the driven transmission module and the active transmission module are respectively provided with a pin, and the wire feeding base is provided with the centering fork. The two ends of the centering fork are respectively connected to the pin of the driven transmission module and the pin of the active transmission module to form a high pair.
[0012] Specifically, the drive motor is connected to the pulley of the active transmission module through a drive connection structure. The drive connection structure includes a gear set, a synchronous pulley, and a synchronous belt. The shaft of the drive motor and the shaft of the synchronous pulley are connected by the gear set, and the synchronous pulley and the belt are connected by the synchronous belt.
[0013] Specifically, the driven transmission module and the active transmission module are horizontally slidably connected to the wire feeding base via cross roller guides.
[0014] Furthermore, the driven roller module and the driven transmission module are detachably connected via a snap-fit mechanism.
[0015] Furthermore, it also includes a guide wire bushing and a guide wire bushing tube. The guide wire bushing is fed into the rotary shaft, and the guide wire bushing tube is fixed on the wire feeding base. The central axes of the guide wire bushing and the guide wire bushing tube are located on the same horizontal line.
[0016] Furthermore, it also includes an electric slip ring, which is fixed on the rotary base, and the rotary shaft passes through the electric slip ring.
[0017] Furthermore, it also includes a magnetic encoder, which is fixed on the rotary base, and the rotary shaft passes through the magnetic encoder.
[0018] Furthermore, it also includes a dust cover, which is installed on the rotating shaft. The magnetic encoder and the electric slip ring are connected to the rotating base in sequence. After the dust cover covers the magnetic encoder and the electric slip ring inside, it is fixedly connected to the rotating base.
[0019] The beneficial effects of this utility model are as follows:
[0020] The adjustable guide wire clamping and pushing device proposed in this utility model has an electric telescopic rod between the driven transmission module and the active transmission module, and the driven transmission module and the active transmission module are horizontally slidably connected to the wire feeding base, thereby realizing the change of the distance between the driven transmission module and the active transmission module, thereby changing the diameter of the guide wire clamped between the driven roller module and the active roller module, thus realizing the advancement and rotation of the guide wire and adapting to guide wires and guide tubes of different diameters. Attached Figure Description
[0021] Figure 1 This is a structural diagram of an adjustable guide wire clamping and pushing device according to an embodiment of this application;
[0022] Figure 2 This is an exploded view of the structure of an adjustable guide wire clamping and pushing device according to an embodiment of this application.
[0023] In the diagram: 1-Driven roller module; 2-Driven transmission module; 3-Driven roller module; 4-Driven transmission module; 410-Upper friction disc; 420-Snap fastener; 430-Pulley; 5-Busket seat; 6-Guide bushing; 7-Feeding base; 8-Cross roller guide; 9-Centering fork; 10-Electric telescopic rod; 11-Drive motor; 12-Synchronous belt; 13-Adapter; 14-Rotation base; 15-Adapter plate; 16-Rotation motor; 17-Magnetic encoder; 18-Electric slip ring; 19-Dust cover; 20-Rotation shaft; 21-Guide bushing; 22-Pin; 23-Synchronous pulley; 24-Gear set. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0031] Combination Figure 1 and Figure 2 As shown, an adjustable guide wire clamping and pushing device includes:
[0032] The rotary mechanism includes a rotary base 14, a rotary motor 16, an adapter plate 15, and a rotary shaft 20. The rotary motor 16 is fixed on the rotary base 14. The adapter plate 15 is connected to the output structure of the rotary motor 16. The rotary shaft 20 passes through the center hole of the rotary motor 16 and is connected to the adapter plate 15.
[0033] The wire feeding mechanism includes a wire feeding base 7, a driven transmission module 2, an active transmission module 4, a driven roller module 1, an active roller module 3, a drive motor 11, and an electric telescopic rod 10. The driven roller module 1 is drivenly connected to the top of the driven transmission module 2, and the active roller module 3 is drivenly connected to the top of the active transmission module 4. The driven transmission module 2 and the active transmission module 4 are horizontally slidably connected to the wire feeding base 7. The driven transmission module 2 and the active transmission module 4 are connected via the electric telescopic rod 10, and the drive motor 11 is drivenly connected to the active transmission module 4. This enables the clamping of guide wires of different diameters.
[0034] In some embodiments, the driven transmission module 2 and the active transmission module 4 each include a module housing, a pulley 430, a drive shaft, and an upper friction disk 410. The drive shaft is rotatably disposed within the module housing. The upper end of the drive shaft extends to connect with the top of the module housing and the upper friction disk 410. The lower end of the drive shaft extends to connect with the bottom of the module housing and the pulley 430. The driven roller module 1 and the active roller module 3 each include a module housing, a roller, a rotating shaft, and a lower friction disk. The roller is rotatably disposed within the module housing via the rotating shaft. The roller protrudes from an opening on one side of the module housing. The opening sides of the driven roller module 1 and the active roller module 3 are arranged opposite to each other. The lower end of the rotating shaft extends to connect with the bottom of the module housing and the lower friction disk. When the upper friction disk 410 rotates, it drives the lower friction disk to rotate through friction.
[0035] In some embodiments, the driven transmission module 2 and the active transmission module 4 are each provided with a pin 22, and the wire feeding base 7 is provided with a centering fork 9. The two ends of the centering fork 9 are respectively connected to the pin 22 of the driven transmission module 2 and the pin 22 of the active transmission module 4 to form a high pair. This ensures that the symmetry plane of the driven transmission module 2 and the active transmission module 4 remains unchanged.
[0036] In some embodiments, the drive motor 11 is connected to the pulley 430 of the active transmission module 4 through a drive connection structure. The drive connection structure includes a gear set 24, a synchronous pulley 23, and a synchronous belt 12. The shaft of the drive motor 11 and the shaft of the synchronous pulley 23 are connected by the gear set 24, and the synchronous pulley 23 and the pulley 430 are connected by the synchronous belt 12.
[0037] In some embodiments, the driven transmission module 2 and the active transmission module 4 are horizontally slidably connected to the wire feeding base 7 via cross roller guides 8.
[0038] In some embodiments, the driven roller module 1 and the driven transmission module 2 are detachably connected via a snap-fit 420.
[0039] In some embodiments, the system further includes a guide wire bushing 21 and a guide wire bushing tube 6. The guide wire bushing 21 is fed into the rotary shaft 20, and the guide wire bushing tube 6 is fixed to the wire feeding base 7. The central axes of the guide wire bushing 21 and the guide wire bushing tube 6 are located on the same horizontal line. The guide wire bushing 21 and the guide wire bushing tube 6 ensure that the guide wire always moves along the designed path during clamping and feeding, without deviation or detachment.
[0040] In some embodiments, an electric slip ring 18 is also included, which is fixed to the rotating base 14, and the rotating shaft 20 passes through the electric slip ring 18. The electric slip ring 18 is mainly used for the transmission of electrical signals, maintaining a stable electrical connection through sliding contact, and allowing the electrical connection to be unrestricted during rotation.
[0041] In some embodiments, a magnetic encoder 17 is further included, which is fixed to the rotary base 14, and the rotary shaft 20 passes through the magnetic encoder 17. The magnetic encoder is used to monitor and control the rotation angle of the guide wire to ensure that the device rotates precisely at a predetermined angle.
[0042] In some embodiments, a dust cover 19 is also included, which is inserted through the rotary shaft 20. The magnetic encoder 17 and the electric slip ring 18 are connected to the rotary base 14 in sequence. After the dust cover 19 covers the magnetic encoder 17 and the electric slip ring 18 inside, it is fixedly connected to the rotary base 14.
[0043] Roller modules 1 and 3 are respectively fastened to the driven transmission module 2 and the active transmission module 4 via clips. The power module 9 is fixed to the active transmission module 4 with screws, and transmits the wire feeding power to the active transmission module 4 via the synchronous belt 12. The active transmission module 4 then transmits the power to the rollers of the roller module 3 via a friction disc, thus achieving wire feeding when roller modules 1 and 3 are clamped together. The driven transmission module is a driven module and does not actually transmit power; therefore, the roller module 1 fastened to it is also driven. The active transmission module 4 and the driven transmission module 2 are connected to the wire feeding base 7 via the cross roller guide rail 8. The centering fork 9 is connected to the wire feeding base 7 via a special screw. The two ends of the centering fork form a high pair with the pins of the driven transmission module 2 and the active transmission module 4, respectively. One end of the electric telescopic push rod 10 is fixed to the active transmission module 4, and the other end is connected to the driven transmission module 2 via the adapter 13. This enables the driven transmission module 2 and the active transmission module 4 to move symmetrically and parallel relative to the wire feeding base 7, thereby clamping and releasing the guide wire and guide tube. The bushing tube 6 is installed in the bushing tube seat 5. The bushing tube seat 5 is fixed to the wire feeding base 7 with screws. The bushing tube 6 and the bushing 21 are used to constrain the guide wire and prevent it from detaching from the roller module 1 and the roller module 3. The wire feeding base 7 is connected to the adapter plate 15 by screws; the rotary shaft 20 passes through the center hole of the rotary motor 16 to provide radial positioning for the adapter plate 15 and is connected to the adapter plate 15 by a set screw. The adapter plate 15 is connected to the rotary motor 16 by screws. The rotary motor 16 is fixed to the rotary mechanism base 14 by screws. The magnetic encoder 17 is fixed to the rotary mechanism base 14. The slip ring 18 is fixed to the rotary mechanism base 14, and the dust cover 19 is fixed to the rotary mechanism base 14. The bushing 21 passes through the rotary shaft 20. The rotary motor 16 drives the entire wire feeding mechanism to rotate, thereby realizing the rotation of the guide wire.
[0044] This invention uses two roller modules, which are respectively engaged with the driven transmission module and the active transmission module. The fixed end and the movable end of the telescopic push-pull rod are respectively connected to the bottom of the driven transmission module and the bottom of the active transmission module, thereby driving the driven transmission module, the active transmission module and the corresponding engaged roller modules to open or clamp. The motor module inputs power to the driven transmission module through a pulley and then transmits it to the rollers of the roller module through a friction disc, driving the delivery and advancement of the guide wire. The rotation mechanism is connected to the power transmission module to realize the rotation of the guide wire or guide tube. The rotation mechanism has an angular displacement sensor to realize the rotation of the guide wire or guide tube at a specified speed and position.
[0045] This invention solves two problems compared to traditional guidewire delivery or rotation devices: first, it can accommodate guidewires or catheters of different diameters; second, the use of disposable rubber roller modules facilitates instrument sterilization and cleaning. This invention will significantly shorten the guidewire's movement time within the patient's body, reducing patient discomfort. Furthermore, compared to traditional guidewire advancement structures, this invention has a simpler structure and is more reliable during operation. Due to the simplified mechanical design, this invention is smaller and lighter than traditional guidewire and catheter advancement mechanisms, allowing for more flexible placement in clinical settings to facilitate interventional procedures.
[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An adjustable guide wire clamping and pushing device, characterized in that, include: A rotary mechanism includes a rotary base, a rotary motor, an adapter plate, and a rotary shaft. The rotary motor is fixed on the rotary base, the adapter plate is connected to the output structure of the rotary motor, and the rotary shaft passes through the central hole of the rotary motor and is connected to the adapter plate. The wire feeding mechanism includes a wire feeding base, a driven transmission module, an active transmission module, a driven roller module, an active roller module, a drive motor, and an electric telescopic rod. The driven roller module is drivenly connected to the top of the driven transmission module, and the active roller module is drivenly connected to the top of the active transmission module. The driven transmission module and the active transmission module are respectively horizontally slidably connected to the wire feeding base. The driven transmission module and the active transmission module are connected through the electric telescopic rod, and the drive motor is drivenly connected to the active transmission module.
2. The adjustable guide wire clamping and pushing device according to claim 1, characterized in that, Both the driven and active transmission modules include a module housing, a pulley, a drive shaft, and an upper friction disk. The drive shaft is rotatably disposed within the module housing. The upper end of the drive shaft extends to connect with the top of the module housing and the upper friction disk, while the lower end extends to connect with the bottom of the module housing and the pulley. Both the driven and active roller modules include a module housing, a roller, a rotating shaft, and a lower friction disk. The roller is rotatably disposed within the module housing via the rotating shaft. The roller protrudes from an opening on one side of the module housing. The opening sides of the driven and active roller modules are arranged opposite to each other. The lower end of the rotating shaft extends to connect with the bottom of the module housing and the lower friction disk. When the upper friction disk rotates, it drives the lower friction disk to rotate through friction.
3. The adjustable guide wire clamping and pushing device according to claim 1 or 2, characterized in that, The driven transmission module and the active transmission module are each provided with a pin, and the wire feeding base is provided with a centering fork. The two ends of the centering fork are respectively connected to the pins of the driven transmission module and the pins of the active transmission module to form a high pair.
4. The adjustable guide wire clamping and pushing device according to claim 2, characterized in that, The drive motor is connected to the pulley of the active transmission module through a drive connection structure. The drive connection structure includes a gear set, a synchronous pulley, and a synchronous belt. The shaft of the drive motor and the shaft of the synchronous pulley are connected by the gear set, and the synchronous pulley and the belt are connected by the synchronous belt.
5. The adjustable guide wire clamping and pushing device according to claim 1, characterized in that, The driven transmission module and the active transmission module are respectively horizontally slidably connected to the wire feeding base via cross roller guides.
6. The adjustable guide wire clamping and pushing device according to claim 1, characterized in that, The driven roller module and the driven transmission module are detachably connected by a snap-fit.
7. The adjustable guide wire clamping and pushing device according to claim 1, characterized in that, It also includes a guide wire bushing and a guide wire bushing tube. The guide wire bushing is fed into the rotary shaft, and the guide wire bushing tube is fixed on the wire feeding base. The central axes of the guide wire bushing and the guide wire bushing tube are located on the same horizontal line.
8. The adjustable guide wire clamping and pushing device according to claim 7, characterized in that, It also includes an electric slip ring, which is fixed on the rotary base, and the rotary shaft passes through the electric slip ring.
9. The adjustable guide wire clamping and pushing device according to claim 8, characterized in that, It also includes a magnetic encoder, which is fixed on the rotary base, and the rotary shaft passes through the magnetic encoder.
10. The adjustable guide wire clamping and pushing device according to claim 9, characterized in that, It also includes a dust cover, which is installed on the rotating shaft. The magnetic encoder and the electric slip ring are connected to the rotating base in sequence. After the dust cover covers the magnetic encoder and the electric slip ring inside, it is fixedly connected to the rotating base.