Bending-adjustable PTFE (Polytetrafluoroethylene) conduit

Abstract

The utility model discloses a bend-adjustable PTFE conduit which comprises a conduit main body and an end a installed at the right end of the conduit main body, the left end of the conduit main body is fixedly connected with an end b, a plurality of metal wires are arranged in the conduit main body at equal intervals to limit the angle of the conduit main body after bending, a clamping groove is formed in the conduit main body, and the metal wires are clamped in the clamping groove. A plurality of fixing rings are fixedly connected to the interior of the clamping groove from left to right at equal intervals, auxiliary pipes are fixedly connected between the circular inner walls of the multiple fixing rings, by installing metal wires, when the guide pipe body is bent, the shape can be kept at the bent position of the guide pipe body through the metal wires, the bent or zigzag portion of the pipeline can be more stable and firmer, and the pipeline is more stable and firmer. The guide pipe body can be bent to any amplitude under any condition, meanwhile, the situation that the guide pipe body naturally rebounds can be avoided, meanwhile, the structural strength of the pipeline can be enhanced, and the bearing capacity and the pressure resistance of the pipeline can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to PTFE catheters, and particularly relates to an adjustable-bend PTFE catheter. Background Art

[0002] An adjustable-bend PTFE catheter refers to a flexible pipe made of the chemical material polytetrafluoroethylene, which can be bent and adjusted in shape by appropriate means to meet the requirements of specific application scenarios, and is widely used in fields such as chemical industry, medical treatment, and laboratories. However, after the catheter is bent, the heat setting method is usually used to fix the bent angle of the catheter, and this method cannot appropriately adjust the bent angle of the catheter according to the required angle when in use. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable-bend PTFE catheter to solve the problem that the heat setting method cannot appropriately adjust the bent angle of the catheter according to the required angle as mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An adjustable-bend PTFE catheter includes a catheter main body and a head a installed at the right end of the catheter main body;

[0005] The left end of the catheter main body is fixedly connected with a head b;

[0006] A plurality of metal wires are equidistantly arranged inside the catheter main body to limit the bent angle of the catheter main body.

[0007] Preferably, a card slot is opened inside the catheter main body, and a plurality of fixing rings are fixedly connected equidistantly from left to right inside the card slot.

[0008] Preferably, a secondary pipe is fixedly connected between the circular inner walls of the plurality of fixing rings, and limiting grooves penetrating through the front and back are opened at the four corners of the front outer wall of the plurality of fixing rings to limit the positions of the metal wires.

[0009] Preferably, fillers are arranged between the plurality of metal wires and the card slot, and the circular outer walls of the plurality of metal wires are all wrapped with sheath covers.

[0010] Preferably, the filler is a hollow silica gel material, and the plurality of metal wires are all made of stainless steel materials.

[0011] Preferably, the plurality of fixing rings are fixedly connected to the catheter main body and the secondary pipe by an adhesive method, and the sheath cover is made of polyethylene plastic material.

[0012] Preferably, the catheter body, end a and end b are all made of polytetrafluoroethylene material, and a through opening communicating left and right is provided between the catheter body, end a and end b internally.

[0013] Compared with the prior art, the present utility model provides an adjustable-bend PTFE catheter, having the following

[0014] beneficial effects:

[0015] By installing a wire, when bending the catheter body, the shape can be maintained at the bending position of the catheter body through the wire, so that the pipeline can be more stable and firm at the bent or tortuous part, the catheter body can be bent into any amplitude under any circumstances, meanwhile, the situation of natural rebound of the catheter body can be avoided, and at the same time, the structural strength of the pipeline can be enhanced, and its bearing capacity and pressure resistance performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an adjustable-bend PTFE catheter of the present utility model.

[0017] Figure 2 It is a schematic structural diagram of the adjustable-bend PTFE catheter of the present utility model after bending.

[0018] Figure 3 It is a partial schematic side-sectional structural diagram of the adjustable-bend PTFE catheter of the present utility model.

[0019] Figure 4 It is a partial schematic front-sectional structural diagram of the adjustable-bend PTFE catheter of the present utility model.

[0020] In the figure: 1. Catheter body; 2. End a; 3. Sub catheter; 4. End b; 5. Card slot; 6. Fixed ring; 7. Limit groove; 8. Wire; 9. Filler; 10. Sheath. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides an adjustable-bend PTFE catheter as Figures 1-3 shown, including a catheter body 1 and an end a 2 installed at the right end of the catheter body 1;

[0023] The left end of the catheter body 1 is fixedly connected with an end b4. The catheter body 1 is the main bearing channel for dredging fluids. When transporting fluids, the end a2 is clamped between the end a2 and the output end, and the end b4 is aligned with the storage box for storing fluids or connected to other interfaces. After the output end outputs the fluids, they will be guided through the catheter body 1 and input into other equipment. At the same time, when placing the catheter body 1, it can be bent to achieve a suitable flow path;

[0024] A plurality of metal wires 8 are equidistantly arranged inside the catheter body 1 to limit the angle of the catheter body 1 after bending. When bending the catheter body 1, the angle of the catheter body 1 after bending can be limited by the metal wires 8, avoiding the situation where the bent catheter body 1 slowly rebounds and resets.

[0025] As Figure 3 and Figure 4 As shown, a card slot 5 is opened inside the catheter body 1. A plurality of fixing rings 6 are fixedly connected equidistantly from left to right inside the card slot 5. A secondary pipe 3 is fixedly connected between the inner walls of the plurality of fixing rings 6. Limiting grooves 7 that penetrate through from front to back are opened at the four corners of the front outer wall of the plurality of fixing rings 6 to limit the position of the metal wires 8.

[0026] A card slot 5 is opened inside the catheter body 1 to pre-position the positions of the plurality of fixing rings 6. Subsequently, the positions of the plurality of fixing rings 6 are limited by the secondary pipe 3. A plurality of limiting grooves 7 opened between the plurality of fixing rings 6 can connect the plurality of fixing rings 6 together through a plurality of metal wires 8, and at the same time limit the position of the metal wires 8 themselves.

[0027] As Figure 4 As shown, fillers 9 are provided between the plurality of metal wires 8 and the card slot 5. The outer circular walls of the plurality of metal wires 8 are all wrapped with a sheath 10. The filler 9 is a hollow silica gel material, and the plurality of metal wires 8 are all made of stainless steel materials.

[0028] Through the sheath 10 and the filler 9, when the metal wires 8 are bent, the wear of the metal wires 8 on the inner wall of the catheter body 1 can be reduced, thereby avoiding the loss of the thickness of the inner wall of the catheter body 1.

[0029] As Figure 1 and Figure 4 As shown, the plurality of fixing rings 6 are fixedly connected to the catheter body 1 and the secondary pipe 3 by means of bonding. The sheath 10 is made of polyethylene plastic material.

[0030] Through the bonding method, the fixing rings 6 can be tightly connected to the catheter body 1 and the secondary pipe 3.

[0031] As Figure 1As shown, the catheter body 1, the end a 2, and the end b 4 are all made of polytetrafluoroethylene material. A through opening that penetrates from left to right is provided between the catheter body 1, the end a 2, and the end b 4.

[0032] The catheter body 1, the end a 2, the end b 4, and the auxiliary tube 3 made of polytetrafluoroethylene material have good chemical stability, and at the same time have high temperature resistance and good electrical conductivity, and can adapt to most usage environments. The through opening that penetrates from left to right enables smoother fluid transportation.

[0033] The implementation principle of this embodiment is as follows: When transporting fluid, the end a 2 is clamped with the output end, and the end b 4 is aligned with the storage box for storing fluid or connected to other interfaces. After the output end outputs the fluid, it will be guided by the catheter body 1 and input into other devices. At the same time, when placing the catheter body 1, it can be bent to achieve a suitable flow path. When bending the catheter body 1, the angle after bending of the catheter body 1 can be restricted by the metal wire 8 to avoid the situation where the bent catheter body 1 slowly rebounds and resets.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A PTFE catheter with adjustable bend, comprising a catheter body (1) and an end cap a (2) mounted on the right end of the catheter body (1); The left end of the catheter body (1) is fixedly connected to a terminal b (4); Features: A plurality of metal wires (8) are arranged at equal intervals inside the catheter body (1) to limit the angle of the catheter body (1) after bending.

2. The PTFE conduit with adjustable bend according to claim 1, characterized in that: A clamping groove (5) is provided inside the catheter body (1), and a plurality of fixing rings (6) are fixedly connected to the inside of the clamping groove (5) at equal intervals from left to right.

3. The PTFE conduit with adjustable bend according to claim 2, characterized in that: A secondary tube (3) is fixedly connected between the circular inner walls of the plurality of fixing rings (6), and limiting grooves (7) penetrating from front to back are provided at the four corners of the front end outer walls of the plurality of fixing rings (6) to limit the position of the metal wire (8).

4. The PTFE conduit with adjustable bend according to claim 3, characterized in that: Fillers (9) are provided between the plurality of metal wires (8) and the slots (5), and the circular outer walls of the plurality of metal wires (8) are wrapped with sheaths (10).

5. The PTFE conduit with adjustable bend according to claim 4, characterized in that: The filler (9) is made of hollow silica gel material, and the plurality of metal wires (8) are all made of stainless steel material.

6. The PTFE conduit with adjustable bend according to claim 5, characterized in that: The plurality of fixing rings (6) are fixedly connected to the catheter body (1) and the auxiliary tube (3) by bonding, and the sheath (10) is made of polyethylene plastic material.

7. The PTFE conduit with adjustable bend according to claim 1, characterized in that: The catheter body (1), the end a (2) and the end b (4) are all made of polytetrafluoroethylene material, and a through opening is provided between the inside of the catheter body (1), the end a (2) and the end b (4).

Images