Mechanically reinforced multi-section composite medical tube
By setting reinforcement ribs in interventional medical tubes, the problem of insufficient connection strength between different segments is solved, the continuous changes in the mechanical properties of medical tubes and the improvement of torque control performance is achieved, and the passage of complex blood vessels and the ability of interventional surgery is improved. Operative.
Patent Information
- Application Number
- CN202322952714.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-01
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-11-01
AI Technical Summary
The lack of connection strength between different sections of traditional interventional medical tubes leads to poor overall flexibility and torque control performance, making it difficult to pass smoothly in complex tortuosity blood vessels.
Reinforcement ribs, including metal or polymer materials, are distributed parallel or interlaced on the circumference of medical tubes, located between the inner and outer layers, enhancing the connection strength between different segments and achieving continuous changes in mechanical properties.
It improves the passability and torsion control performance of medical tubes in complex blood vessels, ensuring the operability and safety of interventional surgery.
Smart Images
Figure CN222130747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of interventional equipment, in particular to a mechanically reinforced multi-section composite medical tube. Background Art
[0002] Interventional therapy is a treatment method that integrates imaging diagnosis and clinical treatment. It is a general term for a series of technologies that use puncture needles, catheters and other interventional equipment to enter the lesion site of the human body for minimally invasive treatment under the guidance of imaging equipment such as CT, ultrasound and magnetic resonance imaging. In order to meet the requirements of clinical use, interventional medical tubes are usually composed of an inner layer, an intermediate layer (such as a braided layer, a spring-wound layer, etc.) and an outer layer. In addition, clinical surgery also has different requirements for the performance of different sections of interventional medical tubes (such as material, hardness, etc.), so interventional medical tubes are usually formed by multi-section composite processes. The connection strength between different sections of traditional interventional medical tubes and the realization of continuous performance changes have become a problem. The connections between the sections have problems such as insufficient strength, overall flexibility, poor torsion control performance, and low bending resistance. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a mechanically reinforced multi-section composite medical tube, comprising an outer layer and an inner layer, wherein reinforcing ribs are arranged between the inner layer and the outer layer, and at least one reinforcing rib is arranged.
[0004] Preferably, the outer layer is provided with at least one section, and the outer layer is coated on the outside of the inner layer.
[0005] Preferably, the outer layer comprises a first outer layer, a second outer layer and a third outer layer, and the first outer layer, the second outer layer and the third outer layer are wrapped around the outer side of the inner layer.
[0006] Preferably, the first outer layer, the second outer layer and the third outer layer have the same structural design.
[0007] Preferably, a plurality of the reinforcing ribs are distributed in parallel, and the distribution angle on the circumference of the medical tube is 0-360°.
[0008] Preferably, the plurality of reinforcing ribs are staggered and distributed, and the staggered angle is 0-90°.
[0009] Preferably, the reinforcing ribs are made of metal material.
[0010] Preferably, the reinforcing ribs are made of polymer material.
[0011] Preferably, an intermediate layer is provided between the inner layer and the outer layer.
[0012] Preferably, the intermediate layer includes but is not limited to a woven structure, a spring-wound structure, a polymer layer or an adhesive layer.
[0013] Technical effects and advantages of the utility model:
[0014] In the utility model, the reinforcing ribs are arranged to enhance the connection strength between different sections of the medical tube, and the mechanical properties between different sections change continuously. When the medical tube is bent, under the support of the reinforcing ribs, the sections of the medical tube are gradually and continuously bent, and the medical tube will not be suddenly bent due to external force. In clinical applications, the passability and torsion control performance of the medical tube in complex and tortuous blood vessels are greatly improved, and the operability of interventional surgery is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of a mechanically reinforced multi-segment composite medical tube provided in an embodiment of the present application;
[0016] Figure 2 It is a cross-sectional view of a mechanically reinforced multi-segment composite medical tube provided in an embodiment of the present application.
[0017] In the figure: 1, outer layer; 11, first outer layer; 12, second outer layer; 13, third outer layer; 2, middle layer; 3, reinforcing ribs; 4, inner layer. DETAILED DESCRIPTION
[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.
[0019] See also Figure 1 and Figure 2 In this embodiment, a mechanically reinforced multi-segment composite medical tube is provided. The medical tube is prepared by a coating process, a hot melt process or an extrusion process, and includes an outer layer 1, a reinforcing rib 3 and an inner layer 4. The outer layer 1 is provided with at least one segment. The outer layer 1 is coated on the outside of the inner layer 4. The reinforcing rib 3 is located between the inner layer 4 and the outer layer 1. The outer layer 1 includes a first outer layer 11, a second outer layer 12 and a third outer layer 13. The first outer layer 11, the second outer layer 12 and the third outer layer 13 have the same structural design. The first outer layer 11, the second outer layer 12 and the third outer layer 13 are wrapped on the outside of the inner layer 4.
[0020] Furthermore, the reinforcing ribs 3 are made of metal materials, such as stainless steel or nickel-titanium alloy, and can also be made of polymer materials, such as nylon or polyamide. At least one reinforcing rib 3 is provided. When multiple reinforcing ribs 3 are provided, the multiple reinforcing ribs 3 are distributed in parallel, and the distribution angle on the circumference of the medical tube is 0-360°. The multiple reinforcing ribs 3 can also be staggered, and the staggered angle is 0-90°.
[0021] The cross-sectional shape of the reinforcing rib 3 includes but is not limited to circular, rectangular, semicircular, crescent or other anisotropic cross-sections. The reinforcing rib 3 as a whole has a uniform diameter, a variable diameter or a variable cross-section, and the variable diameter or variable cross-section is prepared by chemical corrosion and machining.
[0022] The provided reinforcing ribs 3 realize the enhancement of the connection strength between different sections of the medical tube, and the continuous change of the mechanical properties between different sections. When the medical tube is bent, under the support of the reinforcing ribs 3, the sections of the medical tube are gradually and continuously bent, and the medical tube will not be suddenly bent due to external force. In clinical applications, the passability and torsion control performance of the medical tube in complex and tortuous blood vessels are greatly improved, and the operability of interventional surgery is improved.
[0023] The distal end of a multi-section composite medical tube has compliance, and the proximal end requires support. Usually, different sections of the tube have different performances. Due to the performance differences, the connection strength or fusion of different diameters is reduced, and there is a risk of breaking. The mechanical transition of different diameters is sudden, and the channel of the blood vessel is not smooth when passing through bends. The set reinforcement ribs 3 can strengthen the strength between sections on the one hand, and improve compliance on the other hand.
[0024] In another embodiment, in the composite medical tube, an intermediate layer 2 is further provided between the inner layer 4 and the outer layer 1. The intermediate layer 2 includes but is not limited to a braided structure, a spring structure, a polymer layer or an adhesive layer. The intermediate layer 2 improves the overall strength of the medical tube.
[0025] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.
Claims
1. A mechanically reinforced multi-section composite medical tube, comprising an outer layer (1) and an inner layer (4), characterized in that: A reinforcing rib (3) is provided between the inner layer (4) and the outer layer (1), and at least one reinforcing rib (3) is provided; The outer layer (1) is provided with at least one section, and the outer layer (1) is coated on the outer side of the inner layer (4); The outer layer (1) comprises a first outer layer (11), a second outer layer (12) and a third outer layer (13), wherein the first outer layer (11), the second outer layer (12) and the third outer layer (13) are wrapped around the outer side of the inner layer (4); The first outer layer (11), the second outer layer (12) and the third outer layer (13) have the same structural design.
2. A mechanically reinforced multi-section composite medical tube according to claim 1, characterized in that: The plurality of reinforcing ribs (3) are distributed in parallel, and the distribution angle on the circumference of the medical tube is 0-360°.
3. The mechanically reinforced multi-section composite medical tube according to claim 1, characterized in that: The plurality of reinforcing ribs (3) are staggered and distributed, with a staggered angle of 0-90°.
4. The mechanically reinforced multi-section composite medical tube according to claim 1, characterized in that: The reinforcing rib (3) is made of metal material.
5. The mechanically reinforced multi-section composite medical tube according to claim 1, characterized in that: The reinforcing rib (3) is made of polymer material.
6. The mechanically reinforced multi-section composite medical tube according to claim 1, characterized in that: An intermediate layer (2) is also provided between the inner layer (4) and the outer layer (1).
7. A mechanically reinforced multi-section composite medical tube according to claim 6, characterized in that: The intermediate layer (2) comprises a woven structure, a spring-wound structure, a polymer layer or an adhesive layer.