Tumor interventional therapy catheter fixing device
By designing a catheter fixing device including a base, a bracket, a guide wheel and a feeding device, the pain caused by operating errors in traditional catheters during interventional treatment is solved, and the stable clamping and convenient feeding of the catheters are achieved, improving the safety and operational convenience of treatment.
Patent Information
- Application Number
- CN202420438637.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-03-07
AI Technical Summary
Traditional tumor interventional therapy catheters are prone to pain due to human operation errors during use, and lack fixing devices with front and back feeding functions.
A conduit fixing device including a base, a bracket, a guide wheel, a clamping device and a feeding device is designed. The clamping fixing of the conduit and the front and back feeding are achieved through the meshing of the worm and the worm wheel. The guide wheel made of silicone material and the nip roller provide friction fixing, and the feeding is controlled through the handwheel.
It realizes stable clamping of the catheter and convenient front and back feeding, reduces pain caused by human operation errors, and improves the safety of treatment and convenience of operation.
Smart Images
Figure CN223054882U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of interventional therapy, and specifically refers to a catheter fixing device for tumor interventional therapy. Background Technique
[0002] Tumor interventional therapy is a way to treat the lesions of patients by using puncture needles, catheters and other interventional devices.
[0003] At present, most tumor clinical interventional therapy catheters are prone to extrusion or pulling of the catheter due to human operation errors or touches during use, increasing the pain of patients and making it inconvenient for safe and stable treatment. The commonly used catheter fixing devices on the market are generally relatively simple and lack the function of advancing and retracting the catheter. Therefore, improvements are needed. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is that the traditional catheter for interventional therapy is not convenient for clamping and fixing, and at the same time, it is not convenient for advancing and retracting the catheter.
[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: A catheter fixing device for tumor interventional therapy, including a base, a bracket is provided at the upper end of the base, a guide wheel is rotatably provided in the bracket, a catheter penetrates through the base, a clamping device is provided in the base, a clamping roller is rotatably provided on the clamping device, and a feeding device is provided on the clamping device; the feeding device includes a fixing plate, a worm is rotatably provided in the fixing plate, a hand wheel II is provided at the end of the worm, a worm gear is provided at the coaxial outer end of the clamping roller, and the worm gear is meshed with the worm. By the meshing of the worm and the rotation of the worm gear, the rotation of the clamping roller is realized, so that the catheter can be advanced and retracted in the clamped state.
[0006] Further, the clamping device includes a slider, the slider slides in the base, a lead screw is rotatably provided in the base, the lead screw is threadedly connected with the slider, and a hand wheel I is provided at the outer end of the lead screw. By the rotation of the lead screw, the sliding of the slider is realized, so that the catheter can be clamped and fixed by the clamping roller.
[0007] Preferably, a rectangular slot is provided in the base, and the slider always slides in the slot.
[0008] Preferably, the guide wheel is arranged in a concave shape in the middle, the clamping roller is arranged in a convex shape in the middle, and both the guide wheel and the clamping roller are made of silicone material.
[0009] Preferably, the worm gear and the shaft end of the clamping roller adopt a key connection method, so as to facilitate the installation, disassembly and replacement of the worm gear.
[0010] The beneficial effects achieved by the present utility model with the above structure are as follows:
[0011] The present utility model can achieve the clamping and fixing of the catheter by setting the clamping device, and under the action of the feeding device, it can ensure that the catheter is fed forward and backward in the clamped state, which is very convenient to use. Brief Description of the Drawings
[0012] Figure 1 is the overall three-dimensional view of a catheter fixing device for tumor interventional therapy of the present utility model;
[0013] Figure 2 is Figure 1 the partial enlarged view at A in
[0014] Figure 3 the three-dimensional view of the guide wheel;
[0015] Figure 4 is the three-dimensional view of the clamping roller.
[0016] Wherein, 1. Base, 2. Bracket, 3. Guide wheel, 4. Catheter, 5. Clamping device, 6. Clamping roller, 7. Feeding device, 8. Fixed plate, 9. Worm, 10. Second handwheel, 11. Worm gear, 12. Slide block, 13. Lead screw, 14. First handwheel, 15. Groove. Specific Embodiments
[0017] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0019] Such as Figures 1-4, a catheter fixing device for tumor interventional therapy of the present utility model includes a base 1, a bracket 2 is provided at the upper end of the base 1, a guide wheel 3 is rotatably provided in the bracket 2, a catheter 4 penetrates through the base 1, a clamping device 5 is provided in the base 1, a clamping roller 6 is rotatably provided on the clamping device 5, the guide wheel 3 is arranged in a concave shape in the middle, the clamping roller 6 is arranged in a convex shape in the middle, both the guide wheel 3 and the clamping roller 6 are made of silica gel material, and a feeding device 7 is provided on the clamping device 5;
[0020] As Figures 1-2 , the feeding device 7 includes a fixing plate 8, a worm 9 is rotatably provided in the fixing plate 8, a second handwheel 10 is provided at the end of the worm 9, a worm gear 11 is provided at the coaxial outer end of the clamping roller 6, and the worm gear 11 is connected to the shaft end of the clamping roller 6 by a key connection method, so as to facilitate the installation, disassembly and replacement of the worm gear 11. The worm gear 11 is meshed with the worm 9, and by the worm 9 meshing with the worm gear 11 to rotate, the rotation of the clamping roller 6 is realized, so that the catheter 4 can be fed forward and backward in the clamped state.
[0021] As Figure 1 , the clamping device 5 includes a slider 12, the slider 12 slides in the base 1, a rectangular slot 15 is provided in the base 1, the slider 12 always slides in the slot 15, a lead screw 13 is rotatably provided in the base 1, the lead screw 13 is threadedly connected to the slider 12, and a first handwheel 14 is provided at the outer end of the lead screw 13. By rotating the lead screw 13, the sliding of the slider 12 is realized, so that the catheter 4 can be clamped and fixed by the clamping roller 6.
[0022] During specific use, the catheter 4 first passes through the base 1. Rotate the first handwheel 14, the lead screw 13 rotates, and the slider 12 will slide in the slot 15. The clamping roller 6 clamps the catheter 4 on the guide wheel 3. The guide wheel 3 and the clamping roller 6 are made of silica gel material, which will generate a large frictional force on the catheter 4, and the catheter 4 will be fixed and will not move up and down. When the catheter 4 needs to be fed up and down, by rotating the second handwheel 10, the worm 9 meshes with the worm gear 11 to rotate, and the worm gear 11 drives the clamping roller 6 to rotate. Thus, the clamping roller 6 drives the catheter 4 by friction, realizing the up and down feeding of the catheter 4 in the base 1. When the second handwheel 10 stops, the worm 9 can lock the worm gear 11 again to prevent the clamping roller 6 from rotating, achieving the purpose of locking the catheter 4.
[0023] The above describes the present utility model and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A catheter fixation device for tumor interventional therapy, comprising a base, wherein a bracket is provided at the upper end of the base, and a guide wheel is rotatably provided in the bracket, and is characterized in that: A conduit is provided through the base. A clamping device is provided in the base. A clamping roller is rotatably provided on the clamping device. A feeding device is provided on the clamping device.
2. The catheter fixing device for tumor interventional therapy according to claim 1, wherein: The feeding device includes a fixing plate. A worm is rotatably provided in the fixing plate. A second handwheel is provided at the end of the worm. A worm gear is provided at the coaxial outer end of the clamping roller. The worm gear is meshed and connected with the worm.
3. The catheter fixing device for tumor interventional therapy according to claim 2, wherein: The clamping device includes a slider. The slider slides in the base. A lead screw is rotatably provided in the base. The lead screw is threadedly connected with the slider. A first handwheel is provided at the outer end of the lead screw.
4. The catheter fixing device for tumor interventional therapy according to claim 3, characterized in that: A rectangular slot is provided in the base. The slider always slides in the slot.
5. The catheter fixing device for tumor interventional therapy according to claim 4, wherein: The guide wheel is arranged in a middle concave shape. The clamping roller is arranged in a middle convex shape. Both the guide wheel and the clamping roller are made of silicone material.
6. The catheter fixing device for tumor interventional therapy according to claim 5, characterized in that: The worm gear and the shaft end of the clamping roller adopt a key connection method.