CN215537124U - Gas-liquid separation type ECMO pre-charging liquid bag - Google Patents
Gas-liquid separation type ECMO pre-charging liquid bag Download PDFInfo
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- CN215537124U CN215537124U CN202122102684.4U CN202122102684U CN215537124U CN 215537124 U CN215537124 U CN 215537124U CN 202122102684 U CN202122102684 U CN 202122102684U CN 215537124 U CN215537124 U CN 215537124U
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Abstract
The utility model relates to a gas-liquid separation type ECMO pre-filling liquid bag, which relates to the technical field of medical supplies and comprises a liquid bag main body, an outflow pipeline and a feedback pipeline, wherein the outflow pipeline and the feedback pipeline are arranged on the liquid bag main body; the feedback pipeline extends to the position above the liquid level from the liquid bag main body to the inner upper part of the liquid bag main body, side holes are uniformly formed in one end, located above the liquid level, of the feedback pipeline, and an exhaust pipeline is arranged at the upper end of the liquid bag main body. The utility model can realize gas-liquid separation, does not need an additional device to separate gas, and in addition, the side holes are uniformly distributed at one end of the feedback pipeline which is positioned above the liquid level, so that the flow velocity of the feedback liquid and gas can be reduced, the impact of the feedback pipeline on the liquid bag main body is avoided, micro bubbles can not be generated, the gas can be prevented from entering a loop, the closed one-time pre-filling can be realized, the joint or the liquid bag main body does not need to be replaced after the pre-filling is started, the pollution is avoided, the operation is simplified, and the labor and the time are saved.
Description
Technical Field
The utility model belongs to the technical field of medical supplies, and particularly relates to a gas-liquid separation type ECMO pre-filling bag.
Background
Extracorporeal membrane pulmonary oxygenation (ECMO) is a technique for rescuing patients with severe cardiopulmonary failure, represents a critical illness rescue level in a country, region, hospital, and even currently considers that ECMO techniques redefine the boundary between life and death. ECMO is an extracorporeal circulation technology which is taken out of a heart operating room, and the principle of the ECMO is that venous blood in vivo is led out of the body, is oxygenated by an artificial heart-lung bypass made of special materials and then is injected into an artery or vein system of a patient, so that a partial heart-lung replacement effect is achieved, and the oxygenation blood supply of human organ tissues is maintained;
ECMO is used more and more in critical diseases, the pre-filling of a pipeline is required before the use, a connector needs to be replaced in the pre-filling process, the pollution probability is increased, the time is wasted, the liquid can run out completely, the air intake of an ECMO loop or the over-expansion of a reinfusion bag can occur, meanwhile, the outflow port and the reinfusion port of the liquid bag are close, the reinfusion liquid can impact the bag to generate bubbles, the air intake of the ECMO loop can be seriously caused, the ECMO loop is improved by the patent CN201810795196.6, the distance between two ports is increased, the large bubbles can be prevented from entering the ECMO loop but micro bubbles can not be completely eliminated, the pre-filling air bubbles are damaged by adding a filter in the patent CN201910361604.1, the bubbles are prevented from being pumped back by adding a diaphragm in the middle of the liquid bag in the patent CN 2011452748, the patent CN202020048452.8 prevents the bubbles from being pumped back by prolonging the outflow and reinfusion channels and adding a baffle in the liquid bag, these designs certainly add more or less complexity to the structure or operation.
To solve the above problems, we propose a gas-liquid separation type ECMO pre-fill bag.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a gas-liquid separation type ECMO pre-fill bag having a simple structure and a rational design.
The utility model realizes the purpose through the following technical scheme:
a gas-liquid separation type ECMO pre-filling bag comprises a liquid bag main body, an outflow pipeline and a return pipeline, wherein the outflow pipeline and the return pipeline are arranged on the liquid bag main body;
the feedback pipeline extends to the position above the liquid level from the liquid bag main body to the inner upper part of the liquid bag main body, side holes are uniformly formed in one end, located above the liquid level, of the feedback pipeline, and an exhaust pipeline is arranged at the upper end of the liquid bag main body.
As a further optimization scheme of the utility model, the outside of the exhaust pipeline is provided with a one-way valve.
As a further optimization scheme of the utility model, the outer ends of the exhaust pipeline, the outflow pipeline and the feedback pipeline are respectively provided with a threaded joint, and the outside of each threaded joint is provided with a protective cap.
As a further optimization scheme of the utility model, the outsides of the exhaust pipeline, the outflow pipeline and the feedback pipeline are provided with linear switches.
As a further optimization scheme of the utility model, the linear switch comprises a base and a column body arranged in the base, wherein through holes which are communicated with each other are formed in the base and the column body.
As a further optimization scheme of the utility model, the outflow pipeline and the feedback pipeline are respectively connected with the same extracorporeal circulation pipeline through connecting pipes, and the extracorporeal circulation pipeline is provided with a sterile pipeline.
As a further optimization scheme of the utility model, a membrane lung and a centrifugal pump are arranged outside the extracorporeal circulation pipeline, and a pipeline clamp is arranged between the outflow pipeline and the return pipeline of the extracorporeal circulation pipeline.
As a further optimized scheme of the utility model, the outer part of the liquid bag main body is provided with scale marks and hanging holes.
The utility model has the beneficial effects that:
1. in the utility model, the gas and the liquid returned by the feedback pipeline are separated above the liquid bag, the gas can be discharged through the exhaust passage, the liquid can flow downwards into the liquid bag to continue to participate in circulation, and no additional device is needed for separating the gas;
2. in the utility model, the feedback pipeline above the liquid level is provided with the side hole, so that the flow velocity of the feedback liquid and gas is reduced, the impact of the feedback liquid and gas on a liquid bag is avoided, micro bubbles are not generated, and the gas inlet of a loop is avoided;
3. the utility model can realize the closed one-time pre-filling, and does not need to replace the joint or the liquid bag after the pre-filling is started, thereby avoiding pollution, simplifying the operation and saving the labor and time;
4. according to the utility model, the threaded joint is arranged at the far end of the exhaust pipeline, so that the connection is firmer and the exhaust pipeline is not easy to fall off.
Drawings
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic diagram of the connection provided by the present invention;
FIG. 3 is a schematic structural view of portion A of FIG. 1 according to the present invention;
FIG. 4 is a perspective view of a return line provided by the present invention;
FIG. 5 is a schematic diagram of a pre-fill bag according to the prior art;
in the figure: 1. a liquid bag body; 2. an outflow conduit; 3. a return pipeline; 4. an exhaust duct; 5. an extracorporeal circulation circuit; 6. a side hole; 7. a linear switch; 71. a base; 72. a cylinder; 73. a through hole; 8. a threaded joint; 9. a one-way valve; 10. a protective cap; 11. a hanging hole; 12. scale lines; 13. a membrane lung; 14. a centrifugal pump; 15. pipe tongs; 16. and (5) sterile pipelines.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; in the description of the present invention, the meaning of "plurality" or "a plurality" is two or more unless otherwise specified.
Referring to fig. 1-4 of the specification, a conventional pre-fill bag is shown in fig. 5, and the pre-fill bag of the present embodiment is a gas-liquid separation type ECMO pre-fill bag, which includes a bag body 1, an outflow tube 2 and a return tube 3 disposed on the bag body 1;
the feedback pipeline 3 extends to the upper part in the liquid bag main body 1 from the liquid bag main body 1 to the liquid bag main body to be above the liquid level, side holes 6 are uniformly formed in one end, located above the liquid level, of the feedback pipeline 3, and an exhaust pipeline 4 is arranged at the upper end of the liquid bag main body 1.
The outside of the exhaust pipe 4 is provided with a one-way valve 9 allowing one-way discharge of gas from the inside to the outside.
The outer end parts of the exhaust pipeline 4, the outflow pipeline 2 and the feedback pipeline 3 are respectively provided with a threaded joint 8, so that the connection is firmer and is not easy to fall off, and the outer part of each threaded joint 8 is provided with a protective cap 10 for dust-proof and sterile protection.
The outside of the exhaust pipeline 4, the outflow pipeline 2 and the feedback pipeline 3 is provided with a linear switch 7 for controlling the opening and closing of the exhaust pipeline 4, the outflow pipeline 2 and the feedback pipeline 3.
The linear switch 7 comprises a base 71 and a cylinder 72 arranged in the base 71, through holes 73 which are mutually communicated are formed in the base 71 and the cylinder 72, the cylinder 72 is rotated to enable the through holes 73 in the cylinder 72 to be communicated with the through holes 73 in the base 71, and then the linear switch 7 is opened, otherwise, the linear switch 7 is closed.
The outflow pipeline 2 and the feedback pipeline 3 are respectively connected with the same extracorporeal circulation pipeline 5 through connecting pipes, and the extracorporeal circulation pipeline 5 is provided with a sterile pipeline 16.
The external circulation pipeline 5 is provided with a membrane lung 13 and a centrifugal pump 14 at the outside, and a pipeline clamp 15 is arranged between the outflow pipeline 2 and the return pipeline 3 of the external circulation pipeline 5.
The outer part of the liquid bag main body 1 is provided with scale lines 12 and a hanging hole 11 for indicating the volume of liquid in the liquid bag main body 1, and the hanging hole 11 is used for hanging the liquid bag main body 1;
in the using process of the whole gas-liquid separation type ECMO pre-filling bag, an outflow pipeline 2 and a feedback pipeline 3 which are connected with the bottom end of a bag main body 1 are communicated with an extracorporeal circulation pipeline 5 to ensure that the extracorporeal circulation pipeline 5 forms a closed loop, and the extracorporeal circulation pipeline 5 is positioned between the outflow pipeline 2 and the feedback pipeline 3 and is clamped by a pipeline clamp 15;
the pipe clamp 15 is clamped, the linear switch 7 on the outflow pipe 2 and the feedback pipe 3 is opened, the one-way valve 9 and the linear switch 7 on the exhaust pipe 4 are opened, the priming solution in the liquid bag main body 1 flows into the extracorporeal circulation pipeline 5 through the outflow pipe 2 and is feedback to the interior of the liquid bag main body 1 through the feedback pipe 3, the priming solution in the liquid bag main body 1 flows through the centrifugal pump 14 and the membrane lung 13 to exhaust air in the centrifugal pump 14 and the extracorporeal membrane lung 13, the feedback pipe 3 extends from the liquid bag main body 1 to the upper part of the liquid bag main body 1 to be above the liquid level, the gas and the liquid returned through the feedback passage are separated above the liquid level of the liquid bag main body 1, the gas can be discharged through the exhaust pipe 4, the liquid can flow downwards into the liquid bag main body 1 to continue to participate in circulation without an additional device, and the side holes 6 are uniformly distributed at one end of the feedback pipe 3 above the liquid level, so that the feedback liquid and the liquid can be lowered, The flow velocity of the gas avoids the impact of the gas on the liquid bag main body 1, micro bubbles cannot be generated, and the gas inlet of a loop is avoided;
finally, after the air in the conventional ECMO closed loop is completely replaced, the ECMO machine is stopped to operate, the prefilling bag is separated from the extracorporeal circulation pipeline 5, two pipeline clamps 15 can be adopted to clamp the artery end and the vein end of the ECMO loop, the sterile pipeline 16 is quickly connected to the artery intubation part and the vein intubation part of the human body, then the ECMO machine is started, and the pipeline clamps are loosened, so that the blood of the patient circulates in the ECMO oxygenation pipeline;
whole gas-liquid separation formula ECMO preliminary filling bag does not need extra device to come the separation gas, and in addition, the one end equipartition that the feedback pipeline 3 is located more than the liquid level has side opening 6, can reduce the velocity of flow of feedback liquid, gas, has avoided its impact to liquid bag main part 1, can not produce the microbubble, avoids the loop to admit air, can realize the disposable preliminary filling of closed, need not change after the preliminary filling begins and connect or liquid bag main part 1, avoids polluting, has simplified the operation, has saved manpower and time.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The gas-liquid separation type ECMO pre-filling bag is characterized by comprising a liquid bag main body (1), an outflow pipeline (2) and a return pipeline (3) which are arranged on the liquid bag main body (1);
the feedback pipeline (3) extends to the position above the liquid level from the liquid bag main body (1) to the upper part in the liquid bag main body (1), side holes (6) are uniformly formed in one end, above the liquid level, of the feedback pipeline (3), and an exhaust pipeline (4) is arranged at the upper end of the liquid bag main body (1).
2. A gas-liquid separation ECMO pre-fill bag according to claim 1, wherein: and a one-way valve (9) is arranged outside the exhaust pipeline (4).
3. A gas-liquid separation ECMO pre-fill bag according to claim 1, wherein: the outer end parts of the exhaust pipeline (4), the outflow pipeline (2) and the feedback pipeline (3) are respectively provided with a threaded joint (8), and the outside of each threaded joint (8) is provided with a protective cap (10).
4. A gas-liquid separation ECMO pre-fill bag according to claim 1, wherein: the outer parts of the exhaust pipeline (4), the outflow pipeline (2) and the feedback pipeline (3) are provided with a linear switch (7).
5. A gas-liquid separation ECMO pre-fill bag according to claim 4, wherein: the linear switch (7) comprises a base (71) and a cylinder (72) arranged in the base (71), and through holes (73) which are mutually communicated are formed in the base (71) and the cylinder (72).
6. A gas-liquid separation ECMO pre-fill bag according to claim 1, wherein: the outflow pipeline (2) and the feedback pipeline (3) are respectively connected with the same extracorporeal circulation pipeline (5) through connecting pipes, and a sterile pipeline (16) is arranged on the extracorporeal circulation pipeline (5).
7. A gas-liquid separation ECMO pre-fill bag according to claim 6, wherein: the external circulation pipeline (5) is externally provided with a membrane lung (13) and a centrifugal pump (14), and a pipeline clamp (15) is arranged between the outflow pipeline (2) and the feedback pipeline (3) of the external circulation pipeline (5).
8. A gas-liquid separation ECMO pre-fill bag according to claim 1, wherein: the outside of the liquid bag main body (1) is provided with scale marks (12) and hanging holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122102684.4U CN215537124U (en) | 2021-09-02 | 2021-09-02 | Gas-liquid separation type ECMO pre-charging liquid bag |
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| CN202122102684.4U CN215537124U (en) | 2021-09-02 | 2021-09-02 | Gas-liquid separation type ECMO pre-charging liquid bag |
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| CN215537124U true CN215537124U (en) | 2022-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591037A (en) * | 2022-10-18 | 2023-01-13 | 北京航天长峰股份有限公司（Cn） | Pre-filling bag and pre-filling device for extracorporeal membrane lung oxygenation system |
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2021
- 2021-09-02 CN CN202122102684.4U patent/CN215537124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115591037A (en) * | 2022-10-18 | 2023-01-13 | 北京航天长峰股份有限公司（Cn） | Pre-filling bag and pre-filling device for extracorporeal membrane lung oxygenation system |
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