Super-lubrication multi-cavity variable diameter pipe

Abstract

The utility model discloses a kind of superlubricity multi-cavity variable diameter pipes, including multi-cavity pipe and the main cavity hole being set in the middle of multi-cavity pipe, spiral reinforcing rib is provided on the inner cavity wall of main cavity hole, multiple tube wall reinforcing ribs are provided in the periphery of main cavity hole, multiple secondary cavity holes are respectively provided in the periphery of the outside of main cavity hole, support rod is provided in the inside middle of secondary cavity hole, three partition strips are provided in the outside of support rod, third cavity hole is provided between secondary cavity hole and secondary cavity hole, support wall is provided in the inside of third cavity hole, this multi-cavity variable diameter pipe is by setting spiral reinforcing rib in the inner wall of main cavity hole, significantly improve the compression resistance and bending resistance of structure, the unique eddy current design of spiral reinforcing rib not only strengthens the mechanical strength of pipe wall, simultaneously optimizes the fluid drainage effect of main cavity hole, multiple tube wall reinforcing ribs of external formation three-dimensional support to main cavity hole from outside, effectively enhance the overall compression resistance, bending resistance and anti-twist ability of pipe body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical equipment related technical field, concretely relates to a super lubrication multi -cavity variable diameter pipe. BACKGROUND

[0002] Multi -cavity variable diameter pipe is a medical catheter, and its structural features are that the pipe body includes multiple independent cavities, and the diameters of these cavities change in different sections. This design can meet the needs of multifunctional integration and dynamic adaptation in clinical operation. For example, in minimally invasive surgery or interventional therapy, the doctor may need to realize multiple functions such as contrast agent injection, instrument channel, physiological monitoring or drainage through the same catheter. The multi -cavity structure avoids the trauma of inserting multiple catheters, and the variable diameter design makes the proximal end and the distal end of the catheter adapt to the size requirements of different anatomical structures. For example, in cardiovascular intervention, the thicker proximal cavity can provide better instrument passability, and the tapered variable diameter at the distal end can reduce the damage to the intima of the blood vessel. Such catheters are often made of biocompatible materials through precise extrusion process, and the fluid mechanics performance needs to be strictly verified to ensure that there is no turbulence or thrombus risk in the variable diameter area. It has important application value in the fields of urology, cardiovascular intervention or neurosurgery.

[0003] However, the existing multi -cavity variable diameter pipe is mostly made of flexible material, which results in poor bending resistance of the multi -cavity variable diameter pipe. Sometimes the cavity hole at the bending part of the multi -cavity variable diameter pipe will block the flow of liquid in the cavity hole due to excessive bending, which affects the normal use of the multi -cavity variable diameter pipe. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of super lubrication multi -cavity variable diameter pipe to solve the problem that the existing multi -cavity variable diameter pipe is mostly made of flexible material in the above background art, which results in poor bending resistance of the multi -cavity variable diameter pipe. Sometimes the problem that the cavity hole at the bending part of the multi -cavity variable diameter pipe will block the liquid flow in the cavity hole due to excessive bending, which affects the normal use of the multi -cavities variable diameter pipe.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of super lubrication multi -cavity variable diameter pipe, including multi -cavity pipe and the main cavity hole being set in the middle of multi -cavity pipe;

[0006] Spiral reinforcing rib is arranged on the inner cavity wall of the main cavity hole, a plurality of pipe wall reinforcing ribs are arranged around the main cavity hole, a plurality of auxiliary cavity holes are respectively arranged around the outer side of the main cavity hole, a support rod is arranged in the middle of the inner part of the auxiliary cavity hole, three partition strips are arranged on the outer side of the support rod, a third cavity hole is arranged between the auxiliary cavity holes, and a support wall is arranged in the third cavity hole.

[0007] Preferably, the spiral reinforcing rib is integrally formed with the main cavity hole. The vortex design of the spiral reinforcing rib can increase the drainage effect of the main cavity hole, and the spiral reinforcing rib can also improve the bending resistance of the main cavity hole.

[0008] Preferably, the pipe wall reinforcing ribs are specifically arranged around the outside of the main cavity hole, and the pipe wall reinforcing ribs are made of titanium-nickel alloy material. The pipe wall reinforcing ribs can support the main cavity hole from the outside.

[0009] Preferably, the secondary cavity holes are evenly arranged around the main cavity holes, the partition strip is made of the same material as the secondary cavity holes, and the partition strip is integrally formed with the multi-cavity tube.

[0010] Preferably, the support rod is positioned at the middle of the intersection of multiple partition strips, and the support rod and partition strips are integrally formed, forming a trilobal structure.

[0011] Preferably, the partition strip and support rod can support the inner wall of the secondary cavity, thereby improving the compressive strength and bending resistance of the secondary cavity.

[0012] Preferably, the third cavity is disposed between two adjacent secondary cavities, and the support wall is disposed on the inner wall of the third cavity. The support wall is made of titanium-nickel alloy material. The support wall can provide stable support for the third cavity and prevent the third cavity from collapsing due to compression.

[0013] Compared with the prior art, this utility model provides a super-lubricated multi-cavity reducing pipe with the following characteristics:

[0014] Beneficial effects:

[0015] 1. By incorporating spiral reinforcing ribs, pipe wall reinforcing ribs, secondary cavity holes, support rods, and partition strips, this multi-cavity reducing pipe significantly enhances the structure's compressive and bending resistance through the spiral reinforcing ribs installed on the inner wall of the main cavity hole. The unique vortex design of the spiral reinforcing ribs not only strengthens the mechanical strength of the pipe wall but also optimizes the fluid diversion effect of the main cavity hole. The externally placed multiple pipe wall reinforcing ribs provide three-dimensional support for the main cavity hole from the outside, effectively enhancing the overall compressive strength, bending resistance, and anti-torsion capability of the pipe body, ensuring that the pipeline maintains structural integrity under pressure conditions. The secondary cavity hole adopts a three-lobe support structure composed of support rods and partition strips, which greatly improves the pressure-bearing capacity of the secondary cavity and provides a stable channel environment for fluid transportation.

[0016] 2. By setting up a third cavity and supporting wall, the third cavity effectively prevents flow channel blockage caused by cavity deformation due to stress through the reinforcement design of the supporting wall. The annular cavity layout arranges the secondary cavity and the third cavity around the main cavity. This structure not only achieves a uniform distribution of the pressure field, but also significantly improves the fluid transmission efficiency of the entire multi-cavity variable diameter pipe, enabling the system to maintain excellent flow performance under complex working conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 For the present utility model Figure 1 Schematic diagram of a partial structure.

[0019] In the diagram: 1. Multi-lumen tube; 2. Spiral reinforcing rib; 3. Main lumen hole; 4. Secondary lumen hole; 5. Tube wall reinforcing rib; 6. Third lumen hole; 7. Support rod; 8. Separator strip; 9. Support wall. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figures 1-2 The super-lubricating multi-cavity reducing pipe shown includes a multi-cavity pipe 1 and a main cavity 3 disposed in the middle of the multi-cavity pipe 1;

[0022] Spiral reinforcing ribs 2 are provided on the inner wall of the main cavity 3. Multiple tube wall reinforcing ribs 5 are provided around the main cavity 3. Multiple secondary cavity holes 4 are provided around the outer perimeter of the main cavity 3. A support rod 7 is provided in the middle of the inner cavity of the secondary cavity hole 4. Three partition strips 8 are provided on the outer side of the support rod 7. A third cavity hole 6 is provided between the secondary cavity holes 4. A support wall 9 is provided inside the third cavity hole 6.

[0023] In this embodiment, the multi-lumen variable diameter catheter is a medical catheter. Its structural feature is that the tube body contains multiple independent lumens, including a main lumen 3, a secondary lumen 4, and a third lumen 6. The diameter of these lumens changes in different sections. This design can meet the needs of multifunctional integration and dynamic adaptation in clinical operations. In minimally invasive surgery or interventional treatment, doctors may need to perform multiple functions such as contrast agent injection, instrument access, physiological monitoring, or drainage through the same catheter. The multi-lumen structure avoids the trauma of inserting multiple catheters separately, while the variable diameter design allows the proximal and distal ends of the catheter to adapt to the size requirements of different anatomical structures. In cardiovascular intervention, the thicker lumen at the proximal end provides better instrument passage, while the gradually tapering diameter at the distal end can reduce damage to the vascular intima.

[0024] like Figure 1 and Figure 2 As shown, the spiral reinforcing rib 2 is integrally formed with the main cavity hole 3. The vortex design of the spiral reinforcing rib 2 can increase the drainage effect of the main cavity hole 3. The spiral reinforcing rib 2 can also improve the bending resistance of the main cavity hole 3. The pipe wall reinforcing rib 5 is specifically set around the outside of the main cavity hole 3. The pipe wall reinforcing rib 5 is made of titanium-nickel alloy. The pipe wall reinforcing rib 5 can support the main cavity hole 3 from the outside. The secondary cavity holes 4 are evenly arranged around the main cavity hole 3. The partition strip 8 is made of the same material as the secondary cavity hole 1. The partition strip 8 is integrally formed with the multi-cavity pipe 1. The support rod 7 is located at the middle position where multiple partition strips 8 intersect. The support rod 7 and the partition strips 8 are integrally formed, and the support rod 7 and the partition strips 8 form a trilobal structure. The partition strips 8 and the support rod 7 can support the inner wall of the secondary cavity hole 4, improving the compressive strength and bending strength of the secondary cavity hole 4. The third cavity hole 6 is located between two adjacent secondary cavity holes 4. The support wall 9 is located on the inner wall of the third cavity hole 6. The support wall 9 is made of titanium-nickel alloy material. The support wall 9 can provide stable support for the third cavity hole 6 and prevent the third cavity hole 6 from collapsing due to compression.

[0025] Preferably, through the arrangement of spiral reinforcing ribs 2, pipe wall reinforcing ribs 5, secondary cavity holes 4, support rods 7, and partition strips 8, the inner wall of the main cavity hole 3 of the multi-cavity variable diameter pipe is provided with spiral reinforcing ribs 2. The spiral structure of the spiral reinforcing ribs 2 can provide a certain degree of pressure resistance and bending resistance to the inner wall of the main cavity hole 3. At the same time, the vortex design of the spiral reinforcing ribs 2 can enhance the drainage effect of the main cavity hole 3. The multiple pipe wall reinforcing ribs 5 arranged on the outside of the main cavity hole 3 can support the main cavity hole 3 from the outside, improve the pressure resistance, bending resistance, and anti-torsion performance of the main cavity hole 3, and prevent the main cavity hole 3 from collapsing due to compression. The trilobal structure composed of support rods 7 and partition strips 8 inside the secondary cavity hole 4 can greatly improve the pressure resistance of the secondary cavity hole 4 and ensure that the fluid inside the secondary cavity hole 4 can flow smoothly.

[0026] Preferably, by setting the third cavity 6 and the support wall 9, the support wall 9 can support the inner wall of the third cavity 6, prevent the third cavity 6 from collapsing under force and hindering the flow of internal fluid. The annular structure formed by the outer third cavity 6 and the secondary cavity 4 can disperse the pressure of the central main cavity 3 from the surrounding area, and provide the flow efficiency of the multi-cavity reducer.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A super-lubricated multi-cavity reducing pipe, comprising a multi-cavity pipe (1) and a main cavity (3) disposed in the middle of the multi-cavity pipe (1); Its features are: The inner wall of the main cavity (3) is provided with a spiral reinforcing rib (2), and multiple tube wall reinforcing ribs (5) are provided around the main cavity (3). Multiple secondary cavity holes (4) are provided around the outer side of the main cavity (3). A support rod (7) is provided in the middle of the inner side of the secondary cavity hole (4). Three partition strips (8) are provided on the outer side of the support rod (7). A third cavity hole (6) is provided between the secondary cavity holes (4) and the secondary cavity holes (4). A support wall (9) is provided inside the third cavity hole (6).

2. The super-lubricated multi-cavity reducing pipe according to claim 1, characterized in that: The spiral reinforcing rib (2) is integrally formed with the main cavity hole (3). The vortex design of the spiral reinforcing rib (2) can increase the drainage effect of the main cavity hole (3). The spiral reinforcing rib (2) can also improve the bending resistance of the main cavity hole (3).

3. The super-lubricated multi-cavity reducing pipe according to claim 2, characterized in that: The tube wall reinforcing rib (5) is specifically arranged around the outside of the main cavity hole (3). The tube wall reinforcing rib (5) is made of titanium-nickel alloy material. The tube wall reinforcing rib (5) can support the main cavity hole (3) from the outside.

4. The super-lubricated multi-cavity reducing pipe according to claim 3, characterized in that: The secondary cavity holes (4) are evenly arranged around the main cavity hole (3). The partition strip (8) is made of the same material as the secondary cavity holes (4). The partition strip (8) and the multi-cavity tube (1) are integrally formed.

5. The super-lubricated multi-cavity reducing pipe according to claim 4, characterized in that: The support rod (7) is located at the middle position where multiple partition strips (8) intersect. The support rod (7) and the partition strips (8) are integrally formed, and the support rod (7) and the partition strips (8) form a three-lobed structure.

6. The super-lubricated multi-cavity reducing pipe according to claim 5, characterized in that: The separator (8) and the support rod (7) can support the inner wall of the secondary cavity (4), thereby improving the compressive strength and bending strength of the secondary cavity (4).

7. A super-lubricated multi-cavity reducing pipe according to claim 6, characterized in that: The third cavity (6) is located between two adjacent secondary cavities (4), and the support wall (9) is located on the inner wall of the third cavity (6). The support wall (9) is made of titanium-nickel alloy material. The support wall (9) can provide stable support for the third cavity (6) and prevent the third cavity (6) from being squeezed and collapsing.

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