Pre-charging pipeline package for ECMO

Abstract

The utility model relates to the technical field of medical equipment, and particularly discloses a pre-filling pipeline bag for ECMO, which comprises a bag body, the bag body is provided with an inner cavity, the bag body is provided with a liquid inlet, an exhaust port, a liquid outlet and a backflow port which are communicated with the inner cavity, the liquid inlet is connected with a liquid inlet assembly, the liquid inlet assembly comprises at least two liquid inlet channels, and the liquid inlet channels are communicated with the inner cavity. Each liquid inlet channel is connected with a corresponding pre-filling pipe; the liquid outlet is connected with a liquid outlet pipeline, the backflow port is connected with a backflow pipeline, a first quick-plug connector is connected between the liquid outlet and the liquid outlet pipeline, a second quick-plug connector is connected between the backflow port and the backflow pipeline, and an intercommunication pipeline is connected between the liquid outlet pipeline and the backflow pipeline. And a pipeline switch is connected in the intercommunication pipeline. According to the embodiment, the at least two liquid inlet channels are arranged, the pre-filling liquid can enter the inner cavity through the at least two pre-filling pipes and the corresponding liquid inlet channels, the liquid inlet efficiency is improved, and then the pre-filling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a pre-filled tubing pack for ECMO. Background Art

[0002] Extracorporeal membrane oxygenation (ECMO) is mainly used to provide continuous extracorporeal respiration and circulation to patients with severe cardiopulmonary failure to maintain their lives. The ECMO system consists of pipes, oxygenators, blood pumps, monitoring systems, etc. It draws venous blood out of the body, drives the blood to circulate through the blood pump, and returns the blood to the body after oxygenation through the oxygenator, thereby maintaining the patient's vital signs.

[0003] Before connecting a patient to the ECMO system, the ECMO tube needs to be pre-filled with a pre-filling fluid such as saline and the gas needs to be expelled to prevent the gas from entering the human body and causing gas embolism. However, the pre-filling efficiency is low in existing pre-filling technologies. Summary of the invention

[0004] Based on this, it is necessary to provide a pre-filled tubing bag for ECMO in order to solve the above problems, including a bag body, the bag body having an inner cavity, the bag body being provided with a liquid inlet, an exhaust port, a liquid outlet and a reflux port communicating with the inner cavity, the liquid inlet being connected to a liquid inlet assembly, the liquid inlet assembly comprising at least two liquid inlet channels, each of the liquid inlet channels being connected to a corresponding pre-filled tube;

[0005] The liquid outlet is connected to the liquid outlet pipeline, the reflux port is connected to the reflux pipeline, a first quick-connect connector is connected between the liquid outlet and the liquid outlet pipeline, a second quick-connect connector is connected between the reflux port and the reflux pipeline, an interconnecting pipeline is connected between the liquid outlet pipeline and the reflux pipeline, and a pipeline switch is connected in the interconnecting pipeline.

[0006] In one embodiment, the liquid inlet assembly includes a main line and at least two branch lines connected to the main line, the main line is connected to the liquid inlet, each of the branch lines is connected to a corresponding pre-filling tube, and each of the branch lines and the main line form each of the liquid inlet channels.

[0007] In one embodiment, the main pipeline is connected to the three branch pipelines.

[0008] In one embodiment, the inner diameter of the pre-filling tube is between 5 mm and 10 mm.

[0009] In one embodiment, the pre-filling tube is connected to a pre-filling liquid bag.

[0010] In one embodiment, the prefilled liquid bag comprises a saline bag.

[0011] In one embodiment, the interconnecting pipeline is arranged near the first quick-connect fitting and the second quick-connect fitting.

[0012] In one embodiment, the liquid outlet and the reflux port are arranged at the bottom of the bag body, and the liquid inlet and the exhaust port are arranged at the top of the bag body;

[0013] The bottom of the bag body is connected with a dividing strip, the dividing strip is located between the liquid outlet and the reflux outlet and is perpendicular to the bottom of the bag body, and the dividing strip divides the inner cavity into two communicating chambers.

[0014] In one embodiment, the height of the partition bar is greater than or equal to 1 / 3 of the height of the inner cavity.

[0015] In one of the embodiments, the exhaust port is covered with an exhaust film.

[0016] The ECMO pre-filling tubing bag provided in the embodiment of the present application has a liquid inlet, an exhaust port, a liquid outlet and a reflux port connected to the inner cavity, wherein the liquid inlet is connected to a liquid inlet assembly, and the liquid inlet assembly includes at least two liquid inlet channels, each of which is connected to a corresponding pre-filling tube. That is, compared with the conventional technology in which only one liquid inlet channel is provided, at least two liquid inlet channels are provided in the present embodiment, and the pre-filling liquid can enter the inner cavity through at least two pre-filling tubes and the corresponding liquid inlet channels respectively, thereby improving the liquid inlet efficiency and thus improving the pre-filling efficiency. At the same time, the liquid outlet is connected to the liquid outlet pipeline via the first quick-plug connector, the reflux port is connected to the reflux pipeline via the second quick-plug connector, an intercommunication pipeline is connected between the liquid outlet pipeline and the reflux pipeline, and a pipeline switch is connected in the intercommunication pipeline, that is, during pre-filling, the intercommunication pipeline between the liquid outlet pipeline and the reflux pipeline can be disconnected, and the liquid outlet pipeline is connected to the liquid outlet via the first quick-plug connector, and the reflux pipeline is connected to the reflux port via the second quick-plug connector, so as to perform pre-filling. When the pre-filling is completed, the connection between the liquid outlet pipeline and the liquid outlet can be disconnected, the connection between the reflux pipeline and the reflux port can be disconnected, and the intercommunication pipeline can be connected to realize the connection between the liquid outlet pipeline and the reflux pipeline, that is, the liquid outlet pipeline and the reflux pipeline are separated from the bag body for self-circulation to reduce external pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a pre-filled circuit pack for ECMO provided in one embodiment of the present application.

[0018] Description of reference numerals:

[0019] 100, bag body; 110, inner cavity; 111, dividing strip; 120, liquid inlet; 130, liquid inlet assembly; 131, pre-filling tube; 132, main line; 133, branch line; 140, exhaust port; 150, liquid outlet; 160, reflux port; 170, liquid outlet line; 171, first quick-connect connector; 180, reflux line; 181, second quick-connect connector; 190, interconnecting line; 191, line switch. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to understand the disclosure of the present application more thoroughly and comprehensively.

[0021] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Extracorporeal membrane oxygenation (ECMO) is mainly used to provide continuous extracorporeal respiration and circulation to patients with severe cardiopulmonary failure to maintain their lives. The ECMO system consists of pipes, oxygenators, blood pumps, monitoring systems, etc. It draws venous blood out of the body, drives the blood to circulate through the blood pump, and returns the blood to the body after oxygenation through the oxygenator, thereby maintaining the patient's vital signs.

[0025] Before connecting a patient to the ECMO system, the ECMO tube needs to be pre-filled with a pre-filling fluid such as saline and the gas needs to be expelled to prevent the gas from entering the human body and causing gas embolism. However, the pre-filling efficiency is low in existing pre-filling technologies.

[0026] To solve the above problems, refer to Figure 1 The embodiment of the present application provides a pre-filled circuit bag for ECMO, including a bag body 100, the bag body 100 having an inner cavity 110, the bag body 100 is provided with a liquid inlet 120, an exhaust port 140, a liquid outlet 150 and a reflux port 160 communicating with the inner cavity 110, the liquid inlet 120 is connected to a liquid inlet component 130, the liquid inlet component 130 includes at least two liquid inlet channels, each of the liquid inlet channels is connected to a corresponding pre-filled tube 131;

[0027] The liquid outlet 150 is connected to the liquid outlet pipeline 170, the reflux port 160 is connected to the reflux pipeline 180, a first quick-connect connector 171 is connected between the liquid outlet 150 and the liquid outlet pipeline 170, a second quick-connect connector 181 is connected between the reflux port 160 and the reflux pipeline 180, an interconnecting pipeline 190 is connected between the liquid outlet pipeline 170 and the reflux pipeline 180, and a pipeline switch 191 is connected in the interconnecting pipeline 190.

[0028] The ECMO pre-filled tubing bag provided in the embodiment of the present application has a bag body 100 provided with a liquid inlet 120, an exhaust port 140, a liquid outlet 150 and a reflux port 160 which are communicated with the inner cavity 110, wherein the liquid inlet 120 is connected to a liquid inlet assembly 130, and the liquid inlet assembly 130 includes at least two liquid inlet channels, each of which is connected to a corresponding pre-filled tube 131. That is, compared with the conventional technology in which only one liquid inlet channel is provided, at least two liquid inlet channels are provided in the present embodiment, and the pre-filled liquid can enter the inner cavity 110 respectively through at least two pre-filled tubes 131 and the corresponding liquid inlet channels, thereby improving the liquid inlet efficiency and thus improving the pre-filling efficiency.

[0029] At the same time, the liquid outlet 150 is connected to the liquid outlet pipeline 170 via the first quick-plug connector 171, and the reflux port 160 is connected to the reflux pipeline 180 via the second quick-plug connector 181. An intercommunication pipeline 190 is connected between the liquid outlet pipeline 170 and the reflux pipeline 180, and a pipeline switch 191 is connected in the intercommunication pipeline 190. That is, during pre-charging, the intercommunication pipeline 190 between the liquid outlet pipeline 170 and the reflux pipeline 180 can be disconnected, and the liquid outlet pipeline 170 can be connected to the liquid outlet pipeline 170 via the first quick-plug connector 171. The liquid port 150 connects the return line 180 to the return port 160 via the second quick-plug connector 181 for pre-filling. After the pre-filling is completed, the connection between the liquid outlet line 170 and the liquid outlet 150 can be disconnected, the connection between the return line 180 and the return port 160 can be disconnected, and the interconnecting line 190 can be connected to realize the connection between the liquid outlet line 170 and the return line 180, that is, the liquid outlet line 170 and the return line 180 are separated from the bag body 100 for self-circulation to reduce external pollution. The cooperation of the first quick-plug connector 171, the second quick-plug connector 181 and the interconnecting line 190 can quickly realize pre-filling and self-circulation inside the pipeline, thereby improving the convenience of use.

[0030] The bag body 100 may have a top and a bottom relative to each other, the liquid inlet 120 and the exhaust port 140 may be arranged at the top of the bag body 100, and the liquid outlet 150 and the reflux port 160 may be arranged at the bottom of the bag body 100. In actual use, the pre-filled liquid may enter the inner cavity 110 of the bag body 100 through the liquid inlet 120 at the top of the bag body 100, and the pre-filled liquid may flow out through the liquid outlet 150 at the bottom of the bag body 100 under the action of gravity, and at the same time, the gas in the pre-filled liquid may move toward the top and be discharged through the top exhaust port 140. When the liquid is filled, the pre-filled liquid may enter the inner cavity 110 through the pre-filling tube 131 from at least two liquid inlet channels.

[0031] In one embodiment, the liquid inlet component 130 includes a main line 132 and at least two branch lines 133 connected to the main line 132, the main line 132 is connected to the liquid inlet 120, each of the branch lines 133 is connected to a corresponding pre-filling tube 131, and each of the branch lines 133 and the main line 132 form each of the liquid inlet channels.

[0032] That is, by configuring the liquid inlet assembly 130 to include a main line 132 and at least two branch lines 133, the effect of multiple liquid inlet channels is achieved. The branch lines 133 are configured in a one-to-one correspondence with the pre-filling tubes 131. In practical applications, the pre-filling liquid can enter the branch lines 133 through each pre-filling tube 131, then enter the main line 132, and finally enter the inner cavity 110 of the bag body 100 through the liquid inlet 120.

[0033] Among them, the main pipeline 132 , each branch pipeline 133 and each pre-filling tube 131 are all arranged perpendicular to the liquid inlet 120 , so that the pre-filling liquid can enter each liquid inlet channel under its own gravity and flow into the inner cavity 110 of the bag body 100 .

[0034] In one embodiment, the main pipeline 132 is connected to three branch pipelines 133. That is, three liquid inlet channels are provided, and the pre-filled liquid can enter the inner cavity 110 of the bag body 100 through the three liquid inlet channels at the same time. This can avoid the situation where too many liquid inlet channels lead to too much pre-filled liquid entering the inner cavity 110 of the bag body 100, and the gas cannot be discharged in time. At the same time, it can avoid the problem that too few liquid inlet channels lead to too difficult entry speed of the pre-filled liquid and too low pre-filling efficiency. Providing three liquid inlet channels can not only improve the efficiency of pre-flushing liquid injection, but also adapt to the exhaust efficiency of the exhaust port 140, effectively improving the pre-filling effect.

[0035] In one embodiment, the inner diameter of the pre-filling tube 131 is between 5 mm and 10 mm, and can be specifically 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm, etc., and can be set according to actual needs.

[0036] The inner diameter of the main pipeline 132 is larger than that of the branch pipeline 133 , and the inner diameter of the branch pipeline 133 is larger than that of the pre-filling tube 131 . The pre-filling tube 131 is inserted into the branch pipeline 133 .

[0037] In one embodiment, the pre-filling tube 131 is connected to a pre-filling liquid bag. The pre-filling liquid bag may include a physiological saline bag. The pre-filling tube 131 may be a needle-shaped pre-filling tube 131. When in use, the needle-shaped pre-filling tube 131 is inserted into the pre-filling liquid bag, thereby preventing leakage and contamination of the pre-filling liquid.

[0038] In one embodiment, the interconnecting pipeline 190 is disposed near the first quick-connect fitting 171 and the second quick-connect fitting 181. For example, the first quick-connect fitting 171 is disposed at the end of the liquid outlet pipeline 170, the second quick-connect fitting 181 is disposed at the end of the return pipeline 180, and the interconnecting pipeline 190 is disposed between the end of the liquid outlet pipeline 170 and the end of the return pipeline 180.

[0039] In this embodiment, the pipeline switch 191 in the interconnecting pipeline 190 can be a pipe clamp.

[0040] In one embodiment, a partition bar 111 is connected to the bottom of the bag body 100. The partition bar 111 is located between the liquid outlet 150 and the reflux port 160 and is perpendicular to the bottom of the bag body 100. The partition bar 111 divides the inner cavity 110 into two interconnected chambers.

[0041] The partition strip 111 can prevent bubbles in the liquid that enters the inner cavity 110 through the reflux port 160 from flowing into the liquid outlet pipeline 170 through the liquid outlet 150 , thereby blocking the bubbles.

[0042] In one embodiment, the height of the partition bar 111 is greater than or equal to 1 / 3 of the height of the inner cavity 110. For example, the height of the partition bar 111 can be 1 / 3 of the height of the inner cavity 110, can be 2 / 3 of the height of the inner cavity 110, etc., and can be set according to actual needs. Setting the height of the partition bar 111 to be greater than or equal to 1 / 3 of the height of the inner cavity 110 can improve the barrier effect on bubbles and prevent bubbles from flowing into the liquid outlet pipeline 170 through the liquid outlet 150.

[0043] In one embodiment, the exhaust port 140 is covered with an exhaust film. The gas in the pre-filled liquid moves toward the top and is discharged through the exhaust film at the top exhaust port 140, thereby quickly discharging the gas in the bag body 100.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A prefilled tubing kit for ECMO, characterized in that: The bag body comprises a bag body having an inner cavity, the bag body is provided with a liquid inlet, an exhaust port, a liquid outlet and a reflux port communicating with the inner cavity, the liquid inlet is connected to a liquid inlet assembly, the liquid inlet assembly comprises at least two liquid inlet channels, and each of the liquid inlet channels is connected to a corresponding pre-filling tube; The liquid outlet is connected to the liquid outlet pipeline, the reflux port is connected to the reflux pipeline, a first quick-connect connector is connected between the liquid outlet and the liquid outlet pipeline, a second quick-connect connector is connected between the reflux port and the reflux pipeline, an interconnecting pipeline is connected between the liquid outlet pipeline and the reflux pipeline, and a pipeline switch is connected in the interconnecting pipeline.

2. The ECMO prefilled tubing kit according to claim 1, characterized in that: The liquid inlet assembly includes a main pipeline and at least two branch pipelines communicating with the main pipeline, the main pipeline is connected to the liquid inlet, each branch pipeline is connected to a corresponding pre-filling tube, and each branch pipeline and the main pipeline form each liquid inlet channel.

3. The ECMO prefilled tubing kit according to claim 2, characterized in that: The main pipeline is connected to the three branch pipelines.

4. The ECMO prefilled tubing kit according to claim 2, characterized in that: The inner diameter of the pre-filling tube is between 5 mm and 10 mm.

5. The ECMO prefilled tubing kit according to claim 2, characterized in that: The pre-filling tube is connected with a pre-filling liquid bag.

6. The ECMO prefilled tubing kit according to claim 5, characterized in that: The pre-filled liquid bag comprises a physiological saline bag.

7. The ECMO prefilled tubing kit according to claim 1, characterized in that: The interconnecting pipeline is arranged close to the first quick-connect connector and the second quick-connect connector.

8. The ECMO prefilled tubing kit according to claim 1, characterized in that: The liquid outlet and the reflux port are arranged at the bottom of the bag body, and the liquid inlet and the exhaust port are arranged at the top of the bag body; The bottom of the bag body is connected with a dividing strip, the dividing strip is located between the liquid outlet and the reflux outlet and is perpendicular to the bottom of the bag body, and the dividing strip divides the inner cavity into two communicating chambers.

9. The ECMO prefilled tubing kit according to claim 8, characterized in that: The height of the partition bar is greater than or equal to 1 / 3 of the height of the inner cavity.

10. The ECMO prefilled tubing kit according to claim 1, characterized in that: The exhaust port is covered with an exhaust film.

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