An interventional medical instrument push structure

Abstract

The utility model relates to medical instrument technical field discloses an interventional medical instrument push structure, including the fixed frame, the left end fixed connection of fixed frame has the silk pipe, the right end fixed connection of fixed frame has the silk pipe, the bottom fixed connection of fixed frame has the handle. The utility model discloses through rotating screw rod, screw rod promotes the downward movement of mounting panel, makes the gyro wheel move, makes the push wheel enter the position of recess and contact the silk guide, then rotates the knob, and the knob drives the gyro wheel to rotate, makes the push wheel rotation and silk guide contact and pushes out silk guide, avoids the direct contact of medical staff push wheel, reduces the pollution risk to silk guide, improves the security when using, adjusts the position of mounting panel through rotating screw rod, and then can adjust the extrusion pressure of push wheel to silk guide, can adjust the push intensity according to the use habit of different medical staff, improves the flexibility when using.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a push structure for interventional medical devices. Background Technology

[0002] Interventional medical devices are surgically inserted into the human body or natural cavities for short-term treatment or examination, and are removed after the treatment or examination is completed. Examples of interventional medical devices include: guidewires and sheaths, rigid guidewires, soft-tipped guidewires, renal artery guidewires, microguidewires, pusher guidewires, super-slippery guidewires, arterial sheaths, venous sheaths, and micro-puncture vascular sheaths. The guidewire is the most important tool in interventional procedures. Guidewire intervention requires the use of a pusher, which is mainly used to facilitate the movement of the device by medical staff.

[0003] Most existing pushers place the guidewire between the push wheel and the guide wheel, and then the medical staff pushes the push wheel to rotate and push the guidewire. However, the medical staff's hands will come into direct contact with the push wheel, which will transfer bacteria or contaminants from their hands to the guidewire, increasing the risk of infection. Therefore, we propose an interventional medical device push structure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an interventional medical device pushing structure.

[0005] This utility model is achieved by the following technical solution: an interventional medical device pushing structure, including a fixing frame, an inlet tube fixedly connected to the left end of the fixing frame, an outlet tube fixedly connected to the right end of the fixing frame, a handle fixedly connected to the bottom of the fixing frame, a pushing component provided on the top of the fixing frame, and a guide wheel rotatably connected to the inner wall of the fixing frame, with a groove provided in the middle of the guide wheel.

[0006] The pushing component includes a mounting frame, with a threaded rod threadedly connected to the inner wall of the mounting frame. The lower end of the threaded rod passes through the mounting frame and is rotatably connected to a mounting plate. A roller is rotatably connected to the inner wall of the mounting plate. A pushing wheel is fixedly connected to the middle of the roller, and a knob is fixedly connected to one end of the roller.

[0007] The above technical solution involves rotating the threaded rod, which pushes the mounting plate downwards, causing the roller to move and the pusher wheel to enter the groove and contact the guide wire. Then, rotating the knob causes the roller to rotate, making the pusher wheel contact the guide wire and push it out. This avoids direct contact between medical personnel and the pusher wheel, reducing the risk of guide wire contamination and improving safety during use. Adjusting the position of the mounting plate by rotating the threaded rod allows for adjustment of the pusher wheel's pressure on the guide wire, enabling adjustments to the pushing force according to different medical personnel's usage habits, thus improving flexibility. The inlet and outlet tubes limit and guide the guide wire, ensuring accuracy during pushing.

[0008] As a further improvement to the above solution, the bottom of the mounting bracket is fixedly connected to the top of the fixing bracket, and the inner walls of both the mounting bracket and the fixing bracket are provided with limit grooves.

[0009] As a further improvement to the above solution, the two ends of the mounting plate are slidably connected to the inner wall of the limiting groove, and the roller is located at the upper end of the guide wheel.

[0010] The above technical solution uses a limiting groove to limit the mounting plate, preventing it from shifting during movement and thus improving stability during use. When the mounting plate moves upward, it drives the rollers and push rollers to move, thereby adjusting the distance between the push rollers and guide rollers, facilitating the guide wire to quickly pass through the push rollers and guide rollers, and improving work efficiency.

[0011] As a further improvement to the above solution, the surface of the push wheel is provided with teeth.

[0012] The above technical solution increases the friction when the pusher wheel contacts the guide wire by using several teeth on its surface, thereby improving the stability of the pusher.

[0013] As a further improvement to the above solution, the knob is located at the front end of the mounting bracket.

[0014] The above technical solution allows for easy operation of the push wheel by using a knob located at the front end of the fixed frame.

[0015] As a further improvement to the above solution, through slots are provided at both the front and rear ends of the fixing frame.

[0016] Through the above technical solution, the mounting plate can enter the inner wall of the fixing frame through the through slots at both ends of the fixing frame, so that the push wheel can be adjusted to a lower position.

[0017] As a further improvement to the above solution, through holes are provided at both ends of the fixing frame.

[0018] The above technical solution allows the guide wire to enter the interior of the fixation frame through the through hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention features a pushing component. Specifically, rotating a threaded rod pushes the mounting plate downwards, causing the roller to move and position the pushing wheel into the groove, contacting the guide wire. Then, rotating a knob causes the roller to rotate, pushing the pushing wheel into contact with the guide wire and pushing it out. This avoids direct contact between medical personnel and the pushing wheel, reducing the risk of guide wire contamination and improving safety during use. Adjusting the position of the mounting plate by rotating the threaded rod allows for adjustment of the pushing force on the guide wire, enabling users to adjust the pushing force according to their preferences, thus increasing flexibility during use.

[0021] This invention features a pushing component and a guide wheel. Specifically, by rotating a threaded rod, which is threadedly connected to the mounting bracket, the mounting plate slides upward along the limiting groove, adjusting the distance between the roller and the guide wheel. This facilitates the passage of the guide wire during use. The guide wire is passed through the inlet tube and then placed inside the groove in the middle of the guide wheel. Finally, the guide wire is passed out through the outlet tube. The groove limits the movement of the guide wire, preventing it from moving left or right during the pushing process, thus improving the stability and accuracy of the pushing process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the present invention.

[0024] Figure 3 This is a schematic diagram of the push component structure of this utility model;

[0025] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0026] Figure 5 This is a top view of the structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the fixing frame structure of this utility model.

[0028] Explanation of key symbols:

[0029] 1. Fixing bracket; 2. Infeed tube; 3. Outfeed tube; 4. Handle; 5. Pushing assembly; 501. Mounting bracket; 502. Threaded rod; 503. Mounting plate; 504. Roller; 505. Pushing wheel; 506. Knob; 6. Guide wheel; 7. Groove; 8. Through slot; 9. Through hole. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example:

[0032] Please combine Figure 1-6 An interventional medical device pushing structure according to this embodiment includes a fixing frame 1, an inlet tube 2 fixedly connected to the left end of the fixing frame 1, an outlet tube 3 fixedly connected to the right end of the fixing frame 1, a handle 4 fixedly connected to the bottom of the fixing frame 1, a pushing component 5 provided on the top of the fixing frame 1, and a guide wheel 6 rotatably connected to the inner wall of the fixing frame 1, with a groove 7 provided in the middle of the guide wheel 6.

[0033] The pushing component 5 includes a mounting bracket 501. A threaded rod 502 is threadedly connected to the inner wall of the mounting bracket 501. The lower end of the threaded rod 502 passes through the mounting bracket 501 and is rotatably connected to a mounting plate 503. A roller 504 is rotatably connected to the inner wall of the mounting plate 503. A pushing wheel 505 is fixedly connected to the middle of the roller 504. A knob 506 is fixedly connected to one end of the roller 504. By rotating the threaded rod 502, the threaded rod 502 pushes the mounting plate 503 downwards, causing the roller 504 to move and the pushing wheel 505 to enter the groove 7. Position and contact the guidewire, then rotate knob 506. Knob 506 drives roller 504 to rotate, causing push wheel 505 to rotate and contact the guidewire, pushing the guidewire out. This avoids direct contact between medical staff and push wheel 505, reducing the risk of guidewire contamination and improving safety during use. By rotating threaded rod 502, the position of mounting plate 503 can be adjusted, thereby adjusting the squeezing force of push wheel 505 on guidewire. The pushing force can be adjusted according to the usage habits of different medical staff, improving the flexibility of use.

[0034] The bottom of the mounting bracket 501 is fixedly connected to the top of the fixed bracket 1, and the inner walls of both the mounting bracket 501 and the fixed bracket 1 are provided with limit grooves.

[0035] The two ends of the mounting plate 503 are slidably connected to the inner wall of the limiting groove, and the roller 504 is located at the upper end of the guide wheel 6.

[0036] The surface of the push wheel 505 is provided with teeth, which increases the friction on the guide wire and improves the accuracy of pushing.

[0037] Knob 506 is located at the front end of the mounting bracket 1.

[0038] The front and rear ends of the fixing frame 1 are provided with through grooves 8, through which the mounting plate 503 can enter the position of the fixing frame 1.

[0039] Through holes 9 are provided at both ends of the fixing bracket 1.

[0040] The implementation principle of the interventional medical device pushing structure in this embodiment is as follows: During use, rotating the threaded rod 502 causes the mounting plate 503 to slide upwards along the limiting groove, as the threaded rod 502 is threadedly connected to the mounting bracket 501. This adjusts the distance between the roller 504 and the guide wheel 6, facilitating the passage of the guide wire. The guide wire is then passed through the inlet tube 2 and placed inside the groove 7 in the middle of the guide wheel 6. Finally, the guide wire exits through the outlet tube 3. The groove 7 limits the guide wire's movement during pushing, preventing lateral movement and improving stability and accuracy. When pushing the guide wire, rotating the threaded rod 502 pushes the guide wire upwards. The mounting plate 503 moves downward, causing the roller 504 to move and the pusher wheel 505 to enter the groove 7 and contact the guide wire. Then, the knob 506 is rotated, which drives the roller 504 to rotate, causing the pusher wheel 505 to rotate and contact the guide wire, pushing the guide wire out. This avoids direct contact between medical staff and the pusher wheel 505, reducing the risk of contamination of the guide wire and improving safety during use. By rotating the threaded rod 502, the position of the mounting plate 503 can be adjusted, thereby adjusting the squeezing force of the pusher wheel 505 on the guide wire. The pushing force can be adjusted according to the usage habits of different medical staff, improving the flexibility of use.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An interventional medical instrument push structure, characterized by, Includes a fixing frame (1), with a wire inlet tube (2) fixedly connected to the left end of the fixing frame (1), a wire outlet tube (3) fixedly connected to the right end of the fixing frame (1), a handle (4) fixedly connected to the bottom of the fixing frame (1), a push assembly (5) provided on the top of the fixing frame (1), and a guide wheel (6) rotatably connected to the inner wall of the fixing frame (1), with a groove (7) provided in the middle of the guide wheel (6); The pushing component (5) includes a mounting bracket (501), the inner wall of which is threaded with a threaded rod (502). The lower end of the threaded rod (502) passes through the mounting bracket (501) and is rotatably connected to a mounting plate (503). The inner wall of the mounting plate (503) is rotatably connected with a roller (504). A pushing wheel (505) is fixedly connected to the middle of the roller (504), and a knob (506) is fixedly connected to one end of the roller (504).

2. An interventional medical instrument pushing structure according to claim 1, characterized in that: The bottom of the mounting bracket (501) is fixedly connected to the top of the fixing bracket (1), and the inner walls of both the mounting bracket (501) and the fixing bracket (1) are provided with limit grooves.

3. An interventional medical instrument pushing structure according to claim 1, wherein: The two ends of the mounting plate (503) are slidably connected to the inner wall of the limiting groove, and the roller (504) is located at the upper end of the guide wheel (6).

4. An interventional medical instrument pushing structure according to claim 1, wherein: The surface of the push wheel (505) is provided with teeth.

5. An interventional medical instrument pushing structure according to claim 1, wherein: The knob (506) is located at the front end of the mounting bracket (1).

6. An interventional medical device push structure as defined in claim 5, wherein: The fixing frame (1) has through slots (8) at both the front and rear ends.

7. An interventional medical device push structure as defined in claim 6, wherein: The fixing frame (1) has through holes (9) at both the left and right ends.

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