Pipeline connecting device suitable for blood purification deep venous transfusion port

Abstract

The utility model relates to the technical field of blood purification components, in particular to a pipeline connecting device suitable for a blood purification deep venous transfusion port, which comprises a port seat and a plastic catheter arranged outside the port seat, and the port seat is of a hollow circular truncated cone structure. According to the deep venous transfusion port for blood purification, firstly, the deep venous transfusion port for blood purification is a deep venous transfusion port device which can be completely implanted subcutaneously and left in the body for a long time, scientific and reasonable improvement is carried out on the port seat, and the port seat is provided with the inclined opening, the clamp seat, the plastic diaphragm and the fixing clamp which are distributed in an inclined mode; the transfusion channel is established by using the non-injury puncture needle to puncture along the skin, the transfusion channel is attractive, privacy is protected, a patient can accept the transfusion channel easily, the port seat with the oblique opening is convenient for the puncture needle to puncture into the port seat along the skin of the patient, other matched needle penetrating structures are not needed, the treatment cost is reduced, and the treatment efficiency is improved. And convenience and safety of puncture dialysis and intravenous injection are improved.

Description

Technical Field

[0001] This utility model relates to the field of blood purification component technology, and in particular to a pipe connection device suitable for deep venous infusion ports for blood purification. Background Technology

[0002] Maintenance hemodialysis is a primary clinical treatment for patients with end-stage renal disease. Deep vein catheterization is a crucial prerequisite for hemodialysis treatment; however, prolonged catheterization can easily lead to complications such as infection, bleeding, and catheter kinking. This not only increases treatment costs and patient suffering but also complicates treatment and increases the risk of systemic infections and other serious complications, ultimately threatening the patient's life.

[0003] like Figure 5 The diagram shows the structure of a previous generation of hemodialysis catheters in the prior art. Hemodialysis catheters typically have two main lumens, connected to two ports (the blue venous port 11 and the red arterial port 12). They have a polyester sheath embedded 1-2 cm from the skin outlet. The catheter material is silicone and other polymers (such as thin polyurethane). The red port is the arterial lumen, used to withdraw blood from the body (its opening is away from the heart), and the blue port is the venous lumen, used to return blood flowing through the dialysis machine to the patient (its opening is closer to the heart). If the blood flow in this conventional direction is low during dialysis, the flow direction may occasionally be reversed, potentially leading to increased recirculation, decreased clearance, and inadequate dialysis, depending on the catheter tip structure. The dual-lumen design provides continuous blood flow, thus offering rapid blood flow and heparin-free hemodialysis technology.

[0004] However, the above-mentioned hemodialysis catheter has the following shortcomings in actual use: (1) The catheter position after surgery can become a pathway for bacterial growth, and the catheter comes into contact with the external environment, increasing the risk of infection. Common infection symptoms include fever, local redness and swelling, pain and exudation, etc. Severe infection may lead to sepsis or even endanger life. In addition, the cleaning and disinfection of the access area may not be thorough enough, which can also easily lead to infection.

[0005] (2) Catheter blockage at the port: Blood clots are easily formed at the lumen of the blue and red ports. Furthermore, after use, blood clots are easily flushed directly into the human body, posing a huge threat to the patient's health.

[0006] (3) Bleeding: A common complication of long-term dialysis catheter placement is bleeding, which is the seepage of blood from the catheter insertion site, especially when the catheter is refreshed. Causes of bleeding include vascular rupture, platelet dysfunction, etc.

[0007] (4) Vascular access life is short: with vascular access is not suitable, vascular access blood flow, vascular access infection and improper maintenance of vascular access and other factors.

[0008] (5) prone to accidental off pipe, increase the patient safety hazards. Practical new type content

[0009] The utility model discloses a pipe connecting device suitable for blood purification deep venous infusion port.

[0010] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0011] A pipe connecting device suitable for blood purification deep venous infusion port, including port seat and the plastic catheter of setting in the port seat outside, the port seat is the hollow circular table structure, the upper end of port seat is provided with the puncture part that the puncture needle is convenient for following skin and port seat establishes the liquid path connection.

[0012] As the further description of the above technical scheme:

[0013] The puncture part includes the bevel of setting in the upper end opening of port seat, the clamp seat of integrally fixing on the upper end of bevel, the rubber septum of installing between clamp seat and bevel and the fixed clamp of fixing between clamp seat and rubber septum.

[0014] As the further description of the above technical scheme:

[0015] The angle of the inclined surface of the bevel and the lower end surface of the port seat is designed to be 30°-60°.

[0016] As the further description of the above technical scheme:

[0017] The end of the plastic catheter towards the port seat is fixedly connected with a Y-shaped pipe, and two branch pipes of the Y-shaped pipe are fixedly connected with connecting pipes capable of establishing a liquid path connection with the port seat.

[0018] As the further description of the above technical scheme:

[0019] The end of the port seat away from the bevel is fixedly connected with a connecting seat for establishing a liquid path connection between the plastic catheter or the connecting pipe and the port seat.

[0020] As the further description of the above technical scheme:

[0021] A plurality of through holes are equidistantly formed on the plastic catheter.

[0022] As described above, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0023] The blood purification deep venous infusion port is a deep venous infusion port device which can be completely implanted subcutaneously and long-term detained in the body, scientific and reasonable modification is carried out on the port seat, an oblique opening, a clamp seat, a plastic diaphragm and a fixed clamp are arranged on the port seat, in the actual operation process, a non-traumatic puncture needle is used to establish an infusion channel along the skin puncture, which is beautiful, protects privacy and is easy for patients to accept; meanwhile, compared with the original hemodialysis tube, the following advantages exist: first, the blood purification deep venous infusion port is a closed infusion and blood transfusion system which is buried in and completely inserted into the body, has low infection risk, is safely buried subcutaneously, has no open channel on the body surface, is beautiful, comfortable, protects privacy, has few complications, saves time and cost of critical patients and meets long-term treatment needs of blood purification patients; second, after implantation, the blood purification deep venous infusion port has low infection rate and is non-invasive, and will not affect daily life of patients; third, the original hemodialysis catheter needs to increase the flushing frequency to prevent thrombus, and the indwelling time is relatively short, while the blood purification deep venous infusion port reduces the flushing frequency, can reduce pain of patients and reduce nursing workload; fourth, the original hemodialysis catheter insertion site bleeds, while the blood purification deep venous infusion port is completely implanted subcutaneously and has no such complications; fourth, the oblique port seat design facilitates the puncture needle to penetrate into the port seat along the skin of the patient, without the need of using other matched puncture structures, thereby reducing treatment cost, improving convenience and safety of puncture dialysis and intravenous injection. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structural schematic diagram of a pipeline connecting device suitable for the blood purification deep venous infusion port is provided in the utility model;

[0025] Figure 2 A structural schematic diagram of a pipeline connecting device of a second mode of the venous infusion port in the utility model;

[0026] Figure 3 A three-dimensional exploded schematic diagram of the port seat in the utility model;

[0027] Figure 4 A three-dimensional working schematic diagram of the utility model;

[0028] Figure 5 A structural schematic diagram of a hemodialysis tube in the prior art.

[0029] LEGEND:

[0030] 1, port seat; 101, connecting seat; 102, oblique opening; 103, clamp seat; 2, plastic catheter; 201, leakage hole; 3, rubber diaphragm; 4, fixed clamp; 5, Y-shaped tube; 6, connecting pipe; 7, puncture needle; 8, skin; 9, vein; 10, artery; 11, venous port; 12, arterial port. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] Embodiment 1

[0033] Please refer to Figures 1-5 The present application provides a technical solution: a pipeline connecting device suitable for a blood purification deep vein infusion port, comprising a port seat 1 and a plastic catheter 2 arranged outside the port seat 1. The port seat 1 is a hollow circular truncated cone structure. The upper end of the port seat 1 is provided with a puncture part for facilitating the puncture needle to establish a liquid path connection with the port seat 1 along the skin.

[0034] Specifically, as shown in Figure 1 and Figure 3 The puncture part comprises an inclined opening 102 arranged at the opening of the upper end of the port seat 1, a clamp seat 103 integrally fixed at the upper end of the inclined opening 102, a rubber diaphragm 3 arranged between the clamp seat 103 and the inclined opening 102, and a fixed clamp 4 fixed between the clamp seat 103 and the rubber diaphragm 3. The rubber diaphragm 3 can be fixed on the inclined opening 102 of the port seat 1 by limiting the clamp seat 103 and the fixed clamp 4, and the inclined opening 102 is sealed and covered.

[0035] The angle between the inclined surface of the inclined opening 102 and the lower end surface of the port seat 1 is designed to be 30°-60°. In actual use, the inclined opening 102 with a corresponding angle can be selected according to the position of the subcutaneous implantation. The inclined opening 102 with a small included angle is suitable for areas with thin skin, and has a smaller transverse puncture area, but has a smaller volume after being implanted into the skin, and is more aesthetic. The inclined opening 102 with an included angle is suitable for areas with thick skin, and has a larger transverse puncture area, but has a larger volume after being implanted into the skin, and is more convenient for the puncture needle to establish a liquid path connection with the port seat 1.

[0036] The blood purification deep vein infusion port in Embodiment 1 is designed as a single head, which has one port seat 1 and one plastic catheter 2. The blood purification deep vein infusion port with this structure is suitable for being implanted subcutaneously alone, and establishing a liquid path connection with an artery or a vein, and is suitable for blood dialysis, arterial injection and intravenous injection.

[0037] Embodiment 2

[0038] Specifically, as shown in Figure 2As shown, compared with the embodiment 1, the plastic catheter 2 is fixedly connected with a Y-shaped tube 5 at one end of the port 1, and the two branches of the Y-shaped tube 5 are fixedly connected with the connecting tubes 6 which can be connected with the port 1 in liquid path.

[0039] Specifically, as shown, the port 1 is fixedly connected with a connecting seat 101 at one end away from the bevel 102, which is used for the plastic catheter 2 or the connecting tube 6 to be connected with the port 1 in liquid path, so as to facilitate the port 1 to be connected with the plastic catheter 2 in the embodiment 1 or the connecting tube 6 in the embodiment 2 in liquid path. Figures 1-3

[0040] The plastic catheter 2 is provided with a plurality of through holes 201 which are equidistantly arranged, so as to facilitate the blood in the arteries and veins to enter the plastic catheter 2 in multiple directions, prevent the blood clots from blocking the pipeline, and on the other hand, the liquid injected through the plastic catheter 2 can be mixed with the blood in the arteries and veins in multiple directions, so as to improve the quality effect.

[0041] The blood purification deep vein infusion port in the embodiment 2 is double-head designed, which has two ports 1, one Y-shaped tube 5 and one plastic catheter 2. The blood purification deep vein infusion port with such structure is mainly suitable for blood dialysis.

[0042] In actual use, according to the actual treatment purpose and the position of the port under the skin 8, the blood purification deep vein infusion port in the embodiment 1 or the embodiment 2 is selected for blood dialysis, arterial injection and venous injection, and as shown, the port 1 is partially buried under the skin 8, and the plastic catheter 2 is installed in the artery 10 or the vein 9, so as to realize the liquid path connection between the port 1 and the artery 10 or the vein 9. The external puncture needle 7 can be inserted into the rubber septum 3 on the bevel 102 of the port 1 along the skin 8, so that the external puncture needle 7 can be connected with the port 1 under the skin in liquid path, and the subsequent treatment can be carried out. Figure 4

[0043] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.​​

Claims

1. A pipe connection device for a blood purification deep venous infusion port, comprising a port seat (1) and a plastic catheter (2) arranged outside the port seat (1), characterized in that, The harbor seat (1) is a hollow circular truncated cone structure, and the upper end of the harbor seat (1) is provided with a puncture part for facilitating the puncture needle to establish a liquid path connection with the harbor seat (1) along the skin.

2. The tubing set for a deep venous infusion port for blood purification according to claim 1, wherein The puncture part comprises a bevel (102) opened at the upper end of the harbor seat (1), a clamp seat (103) integrally fixed at the upper end of the bevel (102), a rubber diaphragm (3) installed between the clamp seat (103) and the bevel (102), and a fixed clamp (4) fixed between the clamp seat (103) and the rubber diaphragm (3).

3. The tubing set for a deep venous infusion port for blood purification according to claim 2, wherein The angle between the inclined surface of the bevel (102) and the lower end surface of the harbor seat (1) is designed to be 30°-60°.

4. The tubing set for a deep venous access port for blood purification according to claim 1, wherein The end of the plastic catheter (2) facing the harbor seat (1) is fixedly connected with a Y-shaped pipe (5), and the two branch pipes of the Y-shaped pipe (5) are fixedly connected with connecting pipes (6) capable of establishing a liquid path connection with the harbor seat (1).

5. The tubing set for a deep venous infusion port for blood purification according to claim 2, wherein The end of the harbor seat (1) away from the bevel (102) is fixedly connected with a connecting seat (101) for establishing a liquid path connection between the plastic catheter (2) or the connecting pipe (6) and the harbor seat (1).

6. The tubing set for a deep venous infusion port for blood purification according to claim 1, wherein A plurality of through distribution leak holes (201) are equidistantly opened on the plastic catheter (2).

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