Novel medical braided tube
By adopting a spiral torsion braided structure and reinforced core wire on the medical braided pipe, combined with the design of the hoop and fastening ring, the problem of easy stretching or tearing during bending or rotating of the medical braided pipe is solved, and its tensile resistance and surgical accuracy are improved.
Patent Information
- Application Number
- CN202421456792.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Existing medical braided tubes are prone to stretching or tearing during constant bending or rotation, resulting in axial deformation and affecting surgical accuracy and accuracy.
The unique spiral torsion braiding structure is adopted, combined with the design of reinforced core wire and hoop parts to form a braided net, and the fixed braided net is set at intervals of the fastening ring to ensure its stability and tensile resistance.
It improves the tensile and tear resistance of medical braided tubes, reduces the possibility of axial deformation, and ensures the stability and accuracy of surgical operations.
Smart Images
Figure CN222998165U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a new type of medical braided tube. Background Art
[0002] Medical braided tubes are materials widely used in the biomedical field, mainly made of materials such as polyester, polyethylene, and polypropylene, and have characteristics such as good biocompatibility, temperature resistance, wear resistance, and chemical resistance. They are widely used in fields such as vascular interventional therapy, cardiac surgery, and digestive tract therapy. The basic structure of a medical braided tube consists of a braided layer and an outer skin layer. Different braided structures can provide different mechanical properties and usage characteristics.
[0003] During the surgical operation, the medical braided tube needs to be bent or rotated. During the continuous bending or rotation process, the medical braided tube is frequently subjected to tensile stress. However, the existing medical braided tubes have relatively general tensile and tear resistance. When the medical braided tube is stretched or torn and undergoes axial deformation, the change in its overall length will cause errors in operation positioning, affecting the accuracy and precision of the surgery. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art, and a new type of medical braided tube is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A new type of medical braided tube includes an inner tube and an outer tube wrapped around the outside of the inner tube. A braided net is arranged between the inner tube and the outer tube. The braided net includes multiple braided wires and multiple reinforcing core wires. The multiple braided wires and multiple reinforcing core wires are evenly arranged around the outer circle of the inner tube. The multiple braided wires and multiple reinforcing core wires are spirally twisted and braided along the length direction of the inner tube. A fastening ring is sleeved on the outside of the braided net and is arranged at intervals along the length direction of the inner tube. A tightening member for tightening the braided net is fixedly connected to the inner side of the fastening ring.
[0007] Preferably, the reinforcing core wires are Kevlar wires and the number is four. The four reinforcing core wires are circumferentially arrayed on the outer wall of the inner tube.
[0008] Preferably, the braided wires are made of stainless steel material. The multiple braided wires are arranged between two adjacent reinforcing core wires and are circumferentially arrayed on the outer wall of the inner tube.
[0009] Preferably, after the multiple braided wires and multiple reinforcing core wires are helically twisted and braided together, they are fixed by welding. The braided mesh is fixed on the outer side of the inner tube by welding, the tightening member is fixed on the outer side of the braided mesh by welding, and the fastening ring is fixed on the outer side of the tightening member by welding.
[0010] Preferably, the outer tube and the braided mesh are fixed by bonding.
[0011] Preferably, the outer tube is made of fluororesin material.
[0012] Preferably, accommodation grooves are formed on the inner wall of the outer tube at intervals along its length direction, and the fastening ring is clamped in the accommodation grooves.
[0013] Preferably, both sides of the outer ring of the fastening ring are rounded off.
[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0015] 1. In the present utility model, through the unique helical twist braided structure and the use of reinforcing core wires, the braided tube is given excellent tensile and tear resistance, which can ensure that the braided tube is not easily deformed or damaged when subjected to external forces, thereby maintaining its stability and reliability.
[0016] 2. In the present utility model, through the spaced arrangement of the tightening members, the braided mesh is effectively fixed, preventing excessive axial expansion and contraction during use. The segmented fixing method not only improves the overall stability of the braided tube, but also helps to reduce the possibility of axial deformation, improving the efficiency and accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structural schematic diagram of a novel medical braided tube proposed by the present utility model;
[0018] Figure 2 is a cross-sectional structural schematic diagram of a novel medical braided tube proposed by the present utility model;
[0019] Figure 3 is a partial structural schematic diagram of a novel medical braided tube proposed by the present utility model;
[0020] Figure 4 is a half-sectional structural schematic diagram of the outer tube of a novel medical braided tube proposed by the present utility model.
[0021] Legend: 1, inner tube; 2, outer tube; 21, accommodation groove; 3, braided mesh; 31, braided wire; 32, reinforcing core wire; 33, fastening ring; 34, tightening member. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0024] As Figures 1-4 shown, the present utility model provides a new type of medical braided tube, which includes an inner tube 1 and an outer tube 2 wrapped around the outside of the inner tube 1. A braided net 3 is arranged between the inner tube 1 and the outer tube 2. The braided net 3 includes a plurality of braided wires 31 and a plurality of reinforcing core wires 32. The plurality of braided wires 31 and the plurality of reinforcing core wires 32 are evenly arranged around the outer circle of the inner tube 1. The plurality of braided wires 31 and the plurality of reinforcing core wires 32 are spirally twisted and braided along the length direction of the inner tube 1. A fastening ring 33 is sleeved on the outside of the braided net 3 at intervals along the length direction of the inner tube 1. A tightening member 34 for tightening the braided net 3 is fixedly connected to the inner side of the fastening ring 33.
[0025] In this embodiment, the reinforcing core wires 32 are Kevlar wires and the number is four. The four reinforcing core wires 32 are circumferentially arrayed on the outer wall of the inner tube 1. Kevlar wires have the advantages of high strength, good tensile performance, and relatively low price, which enhance the overall tensile and tear resistance strength.
[0026] In this embodiment, the braided wires 31 are made of stainless steel material. The plurality of braided wires 31 are arranged between two adjacent reinforcing core wires 32 and are circumferentially arrayed on the outer wall of the inner tube 1. After the plurality of braided wires 31 and the plurality of reinforcing core wires 32 are spirally twisted and braided together, they are fixed by welding. The braided net 3 is fixed on the outside of the inner tube 1 by welding. The tightening member 34 is fixed on the outside of the braided net 3 by welding. The fastening ring 33 is fixed on the outside of the tightening member 34 by welding.
[0027] In this embodiment, the outer tube 2 and the braided net 3 are fixed by bonding. The outer tube 2 is made of fluororesin material, which has good corrosion resistance and tear resistance.
[0028] In this embodiment, receiving grooves 21 are formed on the inner wall of the outer tube 2 at intervals along its length direction. The fastening ring 33 is engaged in the receiving grooves 21. The fastening ring 33 is engaged in the receiving grooves 21, which improves the tensile performance of the outer tube 2 in its length direction after installation.
[0029] In this embodiment, both sides of the outer ring of the fastening ring 33 are chamfered. When installing the outer tube 2, the rounded corners of the fastening ring 33 are not likely to damage the inner side of the outer tube 2, and it is also convenient for the fastening ring 33 to enter the receiving groove 21.
[0030] The usage method and working principle of this device are as follows:
[0031] Multiple braided wires 31 and multiple reinforcing core wires 32 are helically twisted and braided together and then fixed on the inner tube 1 by welding. A fastening member 34 is arranged along the length direction of the inner tube 1 to tighten the braided wires 31 and the reinforcing core wires 32. The braided net 3 formed by helical twisting and braiding is fixed at intervals, and then reinforced by the fastening ring 33. The fastening ring 33 can be received in the receiving groove 21 of the outer tube 2 to achieve connection with the outer tube 2.
[0032] During the operation as a whole, bending or rotating operations can be performed. Due to the reinforcing core wires 32 in the braided net 3, it is not easily stretched, and it has good tensile and tear resistance. Moreover, the fastening members 34 and the fastening rings 33 are arranged at intervals for segmentation, so that each segment is not likely to produce axial expansion and contraction during use, and the possibility of overall axial deformation is greatly reduced, which is beneficial for positioning during use and improves the accuracy and precision of the operation.
[0033] The above are only the preferred embodiments of the present invention, and are not limitations on the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims
1. A new type of medical braided tube, characterized by: The invention comprises an inner tube (1) and an outer tube (2) wrapped around the outer side of the inner tube (1); a braided mesh (3) is arranged between the inner tube (1) and the outer tube (2); the braided mesh (3) comprises a plurality of braided wires (31) and a plurality of reinforcing core wires (32); the plurality of braided wires (31) and the plurality of reinforcing core wires (32) are evenly arranged around the outer ring of the inner tube (1); the plurality of braided wires (31) and the plurality of reinforcing core wires (32) are twisted and braided in a spiral shape along the length direction of the inner tube (1); a fastening ring (33) arranged at intervals along the length direction of the inner tube (1) is sleeved on the outer side of the braided mesh (3); a hoop (34) of the hoop braided mesh (3) is fixedly connected to the inner side of the fastening ring (33).
2. A novel medical braided tube according to claim 1, characterized in that: The reinforcing core wires (32) are Kevlar wires and are four in number. The four reinforcing core wires (32) are distributed in a circular array on the outer wall of the inner tube (1).
3. The novel medical braided tube according to claim 1 is characterized in that: The braided wire (31) is made of stainless steel, and a plurality of the braided wires (31) are arranged between two adjacent reinforcing core wires (32) and are distributed in a circular array on the outer wall of the inner tube (1).
4. The novel medical braided tube according to claim 1 is characterized in that: The plurality of braided wires (31) and the plurality of reinforcing core wires (32) are spirally twisted and braided together and then fixed by welding; the braided mesh (3) is fixed to the outside of the inner tube (1) by welding; the clamping piece (34) is fixed to the outside of the braided mesh (3) by welding; and the fastening ring (33) is fixed to the outside of the clamping piece (34) by welding.
5. The novel medical braided tube according to claim 1 is characterized in that: The outer tube (2) and the braided mesh (3) are fixed by bonding.
6. The novel medical braided tube according to claim 1 is characterized in that: The outer tube (2) is made of fluororesin material.
7. The novel medical braided tube according to claim 1 is characterized in that: The inner wall of the outer tube (2) is provided with accommodation grooves (21) arranged at intervals along the length direction thereof, and the fastening ring (33) is engaged in the accommodation grooves (21).
8. The novel medical braided tube according to claim 1 is characterized in that: Both sides of the outer ring of the fastening ring (33) are rounded.