Hemodialysis catheter with separable head end

Abstract

The utility model discloses a hemodialysis catheter with a separable head end, and belongs to the technical field of blood vessel dialysis. The hemodialysis tube mainly comprises a hemodialysis tube body, a backflow tube is arranged at the right end of the hemodialysis tube body, a drainage tube is arranged at the left end of the hemodialysis tube body, four sets of corresponding side holes are formed in the side wall of the backflow tube and the side wall of the drainage tube, the head end of the backflow tube and the head end of the drainage tube can be separated, and a lead hole is formed in the top end of the backflow tube. The tail end of the backflow pipe is fixedly provided with a backflow pipe near pipe opening, a wire is arranged in the backflow pipe, two polypropylene wires are arranged in the side hole and penetrate through the side hole, the front end of the drainage pipe is fixedly provided with a drainage pipe near pipe opening, and the rear end of the drainage pipe near pipe opening is fixedly provided with a pipeline clamp. And valve ports are fixedly mounted at the front ends of the return pipe and the drainage pipe. According to the hemodialysis catheter with the head end capable of being separated, the recycling rate is reduced, and the dialysis efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vascular dialysis, and more particularly to a hemodialysis catheter capable of head-end separation. BACKGROUND

[0002] The hemodialysis catheter provides a reliable blood circulation path for patients, through a double-lumen venous catheter: one lumen (drainage lumen) is used to drain blood to a dialysis machine for cleaning, and then the cleaned blood is pumped back into the patient's body through the other lumen (return lumen). If the distance between the drainage lumen and the return lumen is too close, or if the catheter is inserted in a poor position, some blood may be sucked back into the drainage lumen from the return lumen, resulting in ineffective blood circulation, which is called recirculation. Recirculation reduces the efficiency of blood purification, resulting in the need to extend the treatment time and treatment volume, increasing the medical burden on patients, and may cause serious complications.

[0003] Therefore, it is necessary to provide a hemodialysis catheter capable of head-end separation to solve the above problems. SUMMARY

[0004] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a hemodialysis catheter capable of head-end separation, to reduce the recirculation rate and improve the dialysis efficiency.

[0005] The technical solution adopted by the application to solve the technical problems is: a hemodialysis catheter capable of head-end separation, comprising a hemodialysis tube, the right end of the hemodialysis tube being a return tube, the left end of the hemodialysis tube being a drainage tube, four groups of corresponding side holes being formed in the side walls of the return tube and the drainage tube, and the return tube and the drainage tube being capable of head-end separation.

[0006] Further, a lead hole is formed in the top end of the return tube, a return tube proximal tube port is fixedly installed at the distal end of the return tube, a lead wire is arranged inside the return tube, and the lead wire penetrates the return tube.

[0007] Further, two polypropylene wires are arranged inside the side hole, two groups of the polypropylene wires penetrate the side hole, and a drainage tube proximal tube port is fixedly installed at the front end of the drainage tube.

[0008] Further, a tube port is fixedly installed at the front end of the return tube and the drainage tube.

[0009] Further, a tube port is fixedly installed at the front end of the return tube and the drainage tube.

[0010] The utility model discloses a beneficial effect is: two polypropylene threads are passed from four groups of side holes, and are led out by the drainage tube near the pipe mouth, and the wire enters by the return pipe near the pipe mouth, and then is passed out through the lead hole, after the installation of the wire and polypropylene thread, by pulling double -stranded polypropylene thread, to draw tight polypropylene thread, can become a whole after polypropylene thread is drawn tight, the return pipe and drainage tube in hemodialysis tube, the hemodialysis tube is inserted into the venous blood vessel again, and then the double -stranded polypropylene thread is fixed through the pipeline clamp, so that the polypropylene thread does not loosen, and the return pipe and drainage tube do not loosen. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings accompanying the specification of this utility model form part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0012] Figure 1 It is the whole schematic diagram of a hemodialysis catheter that can be separated at the head end in the application;

[0013] Figure 2 It is Figure 1 It is the schematic diagram of the separation of the return pipe and drainage tube at the head end of the hemodialysis tube in the application;

[0014] Figure 3 It is Figure 2 It is the schematic diagram of the separation of the return pipe and drainage tube at the head end of the hemodialysis tube in the application;

[0015] Figure 4 It is Figure 2 It is the schematic diagram of the separation of the return pipe and drainage tube at the head end of the hemodialysis tube in the application;

[0016] In the drawing: 1, hemodialysis tube;2, wire;4, drainage tube;5, polypropylene thread;6, valve port;7, lead hole;8, pipeline clamp;9, return pipe;10, drainage tube near the pipe mouth;11, return pipe near the pipe mouth;12, side hole. DETAILED DESCRIPTION

[0017] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in the application have the same meaning as that generally understood by ordinary skilled persons in the technical field to which the application belongs.

[0019] In this invention, unless otherwise stated, the orientations used, such as "up" and "down," generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this invention.

[0020] like Figures 1-4 As shown, this application provides a hemodialysis catheter with detachable tips, including a hemodialysis tube 1, a reflux tube 9 at the right end of the hemodialysis tube 1, and a drainage tube 4 at the left end of the hemodialysis tube 1. The side walls of the reflux tube 9 and the drainage tube 4 are provided with four sets of corresponding side holes 12, and the reflux tube 9 and the drainage tube 4 can be detached at their tips.

[0021] The top end of the return pipe 9 is provided with a lead wire hole 7, and the end of the return pipe 9 is fixedly installed with a return pipe near the pipe opening 11. A wire 2 is provided inside the return pipe 9, and the wire 2 passes through the return pipe 9.

[0022] Two polypropylene lines 5 are installed inside the side hole 12, and the two sets of polypropylene lines 5 pass through the side hole 12. The front end of the drainage tube 4 is fixedly installed with the drainage tube near the tube opening 10.

[0023] A pipe clamp 8 is fixedly installed at the rear end of the drainage tube near the pipe opening 10.

[0024] A valve port 6 is fixedly installed at the front end of the return tube 9 and the drainage tube 4. By fixing the valve port 6 at the front end of the return tube 9 and the drainage tube 4, it is convenient for medical staff to connect the delivery tube during the infusion of normal saline in the drainage tube 4 and the return tube 9, and to infuse normal saline into the return tube 9 and the drainage tube 4 to flush and lubricate the hemodialysis tube 1 respectively.

[0025] Specifically, medical staff first use saline solution to flush and lubricate the hemodialysis tubing 1 through the drainage tube near the port 10 and the return tube near the port 11. After flushing and lubrication, the medical staff then pass two strands of polypropylene thread 5 through the four sets of side holes 12 and lead them out through the drainage tube near the port 10. The lead wire 2 enters through the return tube near the port 11 and exits through the lead wire hole 7. After the lead wire 2 and polypropylene thread 5 are installed, the polypropylene thread 5 is tightened by pulling it. After the polypropylene thread 5 is tightened, the return tube 9 and the drainage tube 4 in the hemodialysis tubing 1 can be integrated into a whole, making it easier for the hemodialysis tubing 1 to be inserted into the vein. The tubing clamp 8 is then used to fix the polypropylene thread 5, ensuring that the polypropylene thread 5 will not loosen, thus preventing the return tube 9 and the drainage tube 4 from coming apart.

[0026] Then the clinical routine femoral vein puncture, under the guidance of ultrasound or X-ray perspective will guide wire 2, from the puncture point into the femoral vein into the inferior vena cava, drainage tube near the tube 10 along the guide wire 2, the combination of a blood dialysis tube 1 inserted into the patient's vein suitable position.

[0027] Finally, the tube clamp 8 will be loosened polypropylene line 5 loose, then cut double polypropylene line 5, and one of the polypropylene line 5, until all the extraction, so that the reflux tube 9 and the head end of the drainage tube 4 separation, through the above steps, so that the blood flow can be optimized, reduce the recirculation rate, improve the efficiency of blood purification, less complications.

[0028] Obviously, the above-described embodiments are only a part of the embodiments of the present new type, rather than all the embodiments. Based on the embodiments in the present new type, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should belong to the scope of protection of the present new type.

[0029] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0030] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0031] The above description is only the preferred embodiment of the present new type and is not intended to limit the present new type. For those skilled in the art, the present new type can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present new type shall be included in the protection scope of the present new type.

[0032] The above description is only the preferred embodiment of the present new type, and the protection scope of the present new type is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present new type shall be included in the protection scope of the present new type. It should be noted that for those skilled in the art, several improvements and refinements without departing from the principles of the present new type shall also be considered as the protection scope of the present new type.

Claims

1. A head-dismountable hemodialysis catheter, characterized by: The application relates to a hemodialysis tube (1), the right end of the hemodialysis tube (1) being a return tube (9), the left end of the hemodialysis tube (1) being a drainage tube (4), four groups of corresponding side holes (12) being formed in the side walls of the return tube (9) and the drainage tube (4), and the return tube (9) and the drainage tube (4) being capable of head-end separation.

2. A head-dismountable hemodialysis catheter according to claim 1, characterized in that: A lead hole (7) is formed in the top end of the return tube (9), a return tube near tube mouth (11) is fixedly installed at the end of the return tube (9), and a wire (2) is arranged in the return tube (9).

3. A head-dismountable hemodialysis catheter according to claim 1, characterized in that: Two polypropylene wires (5) are arranged in the side hole (12), and the two groups of polypropylene wires (5) penetrate the side hole (12).

4. A head-dismountable hemodialysis catheter according to claim 3, characterized in that: A drainage tube near tube mouth (10) is fixedly installed at the front end of the drainage tube (4).

5. A head-dismountable hemodialysis catheter according to claim 1, characterized in that: A valve mouth (6) is fixedly installed at the front end of the return tube (9) and the drainage tube (4).

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