Safe pipe connecting device used after ECMO pipe arrangement

Abstract

The utility model discloses a safe tube connecting device used after ECMO catheterization, which comprises a film bag body, and an inner cavity is arranged in the film bag body and used for containing liquid. A first opening and a second opening are formed in the bottom end of the film bag body, and in a working state, the first opening and the second opening are used for placing two pipelines to be butted respectively; a third opening is formed in the top end of the thin film bag body, so that liquid can enter the inner cavity from the third opening. The device is simple in structure, a single person can conveniently complete pipe connection, manpower is saved, meanwhile, gas is prevented from entering an ECMO circulation system, and the safety of ECMO treatment of a patient is greatly guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a safe pipe connection device after ECMO catheterization. Background Art

[0002] Extracorporeal membrane oxygenation, abbreviated as ECMO in English, is a technology of extracorporeal circulation. Its principle is to draw venous blood in the body out of the body, and after oxygenation through an artificial cardiopulmonary bypass made of special materials, it is injected into the arterial or venous system of the patient, playing a role of partial cardiopulmonary replacement and maintaining the oxygenated blood supply of human organs and tissues. Therefore, the implementation of ECMO requires puncture catheterization to connect the human blood circulation system and the equipment circulation system to form a complete circulation loop. The ECMO establishment process is divided into two parts: tubing pre-filling and puncture catheterization, which are carried out simultaneously. The doctor punctures and inserts a drainage tube into the patient's body, and the ECMO circuit nurse pre-fills the equipment and the extracorporeal circulation tubing. After the doctor successfully punctures and inserts the catheter, the exposed ends of the inserted tubing need to be tightly connected to the pre-filled ECMO equipment tubing to form an effective circulation system, and there should be no gas in the tubing, so that the ECMO treatment can be safely carried out.

[0003] Currently, the method of establishing the connection of ECMO: One person injects water above the two ends of the tubing with a syringe, and the other person holds the two ends of the tubing and docks the tubing interfaces under the water injection. However, during this process, the water injection position may be inaccurate or the amount of injected water may not be enough, so that air enters the tubing and forms bubbles in the tubing. If the bubbles enter the human body along with the blood circulation, it will cause air embolism, and in severe cases, it will even lead to the death of the patient. Content of the Utility Model

[0004] The invention purpose of the utility model is to provide a safe pipe connection device after ECMO catheterization aiming at the above problems, which can discharge the air in the tubing during the tubing docking, prevent the generation of bubbles in the tubing, and can also realize single-person operation for pipe connection, saving manpower.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A safe pipe connection device after ECMO catheterization includes a thin film bag body, an inner cavity is arranged in the thin film bag body for containing liquid; a first opening and a second opening are opened at the bottom end of the thin film bag body, and in the working state, the first opening and the second opening are used for respectively inserting two tubes to be docked; a third opening is opened at the top end of the thin film bag body, so that the liquid can enter the inner cavity from the third opening.

[0007] Furthermore, it further includes a water injection pipe, and the water injection pipe is fixedly connected to the third opening of the thin film bag body and can be communicated with the inner cavity.

[0008] Further, a hanging ring is provided on the outer side wall of the water injection pipe, and the hanging ring is fixedly connected to the water injection pipe.

[0009] Further, it further includes two tightening members, and the two tightening members are respectively clamped around the outer perimeters of the first opening and the second opening for simultaneously tightening the film bag body on two pipelines to be butt-jointed.

[0010] Further, it further includes an injector for injecting liquid into the film bag body.

[0011] Further, the inner diameters of the openings of the first opening and the second opening are both 3 mm - 10 mm.

[0012] Further, the water injection pipe is made of plastic material.

[0013] Further, the tightening member is an annular twist wire buckle, a cable tie or a clamp.

[0014] Due to the adoption of the above technical solution, the present utility model has the following beneficial effects:

[0015] 1. For a safe pipe connection device after ECMO catheterization of the present utility model, the pipelines to be butt-jointed are placed into the film bag body, and a sealed and water-injectable chamber is formed in the film bag body through the tightening member. Then, the injector is used to inject water into the chamber so that the liquid in the chamber completely submerges the pipe bodies to be butt-jointed, and the gas in the pipelines is discharged through the water injection pipe to complete the connection of the pipelines. After the pipeline connection is completed, the tightening member is removed and the film bag body is torn / cut open.

[0016] 2. The present utility model not only has a simple structure, but also has a low cost due to the use of film material, which is conducive to being made into disposable medical products, enabling aseptic operation for pipe connection; it is also convenient for a single person to operate to complete the pipe connection, saving manpower, enabling the pipelines to be butt-jointed under sufficient water injection, avoiding gas from entering the ECMO circulation system, and greatly ensuring the safety of patients using ECMO for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the pipeline connection of the existing ECMO device.

[0018] Figure 2 is a schematic diagram of the connection of the existing ECMO pipeline and the catheterization of the human body.

[0019] Figure 3 is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 4 is a schematic diagram of the overall structure of Embodiment 3 of the present utility model (excluding the injector and the hanging ring).

[0021] In the attached drawings, 1 is the bag body, 12 is the first opening, 13 is the second opening, 14 is the third opening, 2 is the water injection pipe, 3 is the tightening member, 4 is the hanging buckle, and 5 is the injector. Detailed implementation manners

[0022] The following further elaborates on the present utility model in conjunction with the attached drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and do not limit the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the attached drawings.

[0023] Embodiment 1

[0024] Refer to Figure 3 , a safety connection device after ECMO catheterization in this embodiment includes a thin film bag body 1, a water injection pipe 2, and an injector 5. An inner cavity 11 for containing liquid is provided inside the thin film bag body 1. The bottom end of the thin film bag body 1 is provided with a first opening 12 and a second opening 13, and the inner diameters of these openings are both 3 mm - 10 mm, and the inner diameters of the two openings are the same. In the working state, the first opening 12 and the second opening 13 are used to respectively insert two pipelines to be docked. The top end of the thin film bag body 1 is provided with a third opening 14, and the injector 5 injects liquid into the inner cavity 11 from the third opening 14.

[0025] Specifically, the thin film bag body 1 is made of a thin film material, making it convenient to observe the liquid level in the inner cavity 11 in the working state; the water injection pipe 2 is made of plastic and has a cylindrical tubular structure. One of the pipe orifices of the water injection pipe 2 is fixedly connected to the third opening 14 of the thin film bag body 1 and is in communication with the inner cavity 11, for example, by using agent bonding or thermal bonding; the injector 5 is a medical syringe (prior art), and the outer diameter of the liquid injection port of the medical syringe is smaller than the inner diameter of the water injection pipe 2. In this way, through the water injection pipe 2, there is a certain support at the third opening 14 of the thin film bag body 1, facilitating the injection of liquid using the injector 5.

[0026] The specific usage method of this embodiment: When connecting the pipelines, first insert the two pipelines to be docked into the first opening 12 and the second opening 13 of the thin film bag body 1 respectively, and use a medical curved clamp to clamp the thin film opening tightly on the pipelines to prevent water leakage at the opening. Then, connect the injector 5 to the water injection pipe 2 and fill the inner cavity 11 with liquid. When the liquid submerges the two pipelines, the gas in the pipelines gradually discharges outward. Finally, the pipelines are docked in the liquid. After the pipeline connection is completed, remove the medical curved clamp and tear / cut open the thin film bag body 1. Through this structure, it is ensured that the pipelines can be docked under sufficient liquid injection, so that there are no air bubbles in the pipelines.

[0027] Embodiment 2

[0028] On the basis of Example 1, a safety takeover device after ECMO cannulation in Example 2 further includes a hanging ring 4, such as Figure 3 As shown, a hanging ring 4 is provided on the outer side wall of the water injection pipe 2, and the hanging ring 4 is fixedly connected to the water injection pipe 2. Specifically, the hanging ring 4 is a semicircular ring structure, and its open end is fixedly connected to the water injection pipe 2.

[0029] In actual use, the pipe connection device can be hung up through the hanging ring 4, and it is convenient for medical staff to operate the pipe connection with both hands, so that the purpose of completing the pipe connection by one person can be achieved.

[0030] Example 3

[0031] Based on Example 1 or Example 2, see Figure 4 , the structure of the water injection pipe 2 in a safety takeover device after ECMO catheterization in this embodiment 3 is different from that in the previous embodiment, and other identical structures will not be repeated. Specifically, the water injection pipe 2 is a plug-type three-way pipe (existing technology), which mainly includes a knob switch and a three-channel tube body. The plug-type three-way pipe controls the connection between the two channel tube bodies through the knob switch. In this embodiment, the water injection pipe 2 is connected to the film bag body 1 as shown in the figure. The first pipe mouth of the water injection pipe 2 is used to connect the liquid injector 5, the second pipe mouth of the water injection pipe 2 is fixedly connected to the third opening 14, and the third pipe mouth of the water injection pipe 2 is used for exhaust.

[0032] In actual use, first rotate the knob switch to connect the first and second nozzles of the water injection pipe 2, and then inject liquid into the film bag body 1. At this time, the third nozzle is in a closed state so that the liquid will not leak out; when the film bag body 1 is filled with liquid, rotate the knob switch to connect the second and third nozzles of the water injection pipe 2 to completely discharge the gas in the bag body; finally, rotate the knob switch to close the second nozzle, and the medical staff hold the two pipes to be connected with both hands for docking. In addition, after the pipes are docked, the liquid can be extracted and discharged into a special waste bag through a stopcock-type three-way pipe to prevent the liquid from contaminating the surgical area. After the liquid is emptied, the film bag body 1 can be torn / cut open.

[0033] In this way, the inner cavity can be closed by the stopcock-type three-way tube, and the purpose of single-person tube connection can be achieved without using a hanging ring. It is not easily restricted by the usage scenario, improves the practicality of the device, and reduces surgical contamination.

[0034] Example 4

[0035] On the basis of Example 1, Example 2 or Example 3, a safe takeover device after ECMO catheterization of this Example 4 also includes two fastening members 3, and the two fastening members 3 are respectively arranged on the periphery of the first opening 12 and the second opening 13, and are used to simultaneously tighten the film bag body 1 on the two pipelines to be connected. Specifically, the fastening member 3 is an annular twist buckle, a cable tie or a clamp. Preferably, an annular twist buckle, a clamp made of nylon material or a cable tie made of silicone material can be selected, which are all existing technologies and will not be repeated here. In actual use, the film opening is fixed to the pipeline by the fastening member 3. Compared with medical curved forceps, its material is softer and lighter, and it is not easy to damage the film bag body 1 during the takeover process, so as to better operate the takeover.

[0036] As mentioned above, the utility model is a device for safely taking over the ECMO tube after placement, which is a thin film product with a simple structure, low cost and easy to tear and cut, so it is conducive to making a disposable medical product; it solves the problem of two people operating the takeover, and is convenient for one person to complete the takeover, saving manpower, and at the same time realizes the docking of the pipeline under the condition of sufficient water injection, avoiding gas from entering the ECMO circulation system, and greatly ensuring the safety of patients using ECMO treatment.

[0037] It should be pointed out that the examples of the above-mentioned embodiments can be preferably combined with one or more of them according to actual needs, and multiple examples use a set of drawings to illustrate the combined technical features, which will not be described one by one here.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A safe takeover device after ECMO cannulation, characterized in that: The invention comprises a film bag body (1), wherein an inner cavity (11) is provided in the film bag body (1) for containing liquid; a first opening (12) and a second opening (13) are provided at the bottom end of the film bag body (1); in a working state, the first opening (12) and the second opening (13) are used to respectively place two pipelines to be connected; The top end of the film bag body (1) is provided with a third opening (14), so that liquid can enter the inner cavity (11) through the third opening (14).

2. The ECMO catheterization safety takeover device according to claim 1, characterized in that: It also comprises a water injection pipe (2), wherein the water injection pipe (2) is fixedly connected to the third opening (14) of the film bag body (1).

3. A safety takeover device after ECMO catheterization according to claim 2, characterized in that: A hanging ring (4) is provided on the outer side wall of the water injection pipe (2), and the hanging ring (4) is fixedly connected to the water injection pipe (2).

4. The ECMO catheterization safety takeover device according to claim 2, characterized in that: The water injection pipe (2) is a three-way pipe of a plug-type.

5. A safety takeover device after ECMO catheterization according to any one of claims 1 to 4, characterized in that: It also comprises two fastening members (3), which are respectively clamped on the outer periphery of the first opening (12) and the second opening (13) and are used to simultaneously fasten the film bag body (1) on two pipelines to be butted.

6. The device for safe takeover after ECMO catheterization according to claim 5, characterized in that: It also comprises a liquid injector (5) for injecting liquid into the film bag body (1).

7. The ECMO catheterization safety takeover device according to claim 1, characterized in that: The inner diameters of the first opening (12) and the second opening (13) are both 3 mm to 10 mm.

8. The ECMO catheterization safety takeover device according to claim 2, characterized in that: The water injection pipe (2) is made of plastic.

9. The ECMO catheterization safety takeover device according to claim 5, characterized in that: The fastening member (3) is an annular twist buckle, a cable tie or a clamp.

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