CN220938682U - External oxygenation device driven by pneumatic pump - Google Patents
External oxygenation device driven by pneumatic pump Download PDFInfo
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- CN220938682U CN220938682U CN202322129045.6U CN202322129045U CN220938682U CN 220938682 U CN220938682 U CN 220938682U CN 202322129045 U CN202322129045 U CN 202322129045U CN 220938682 U CN220938682 U CN 220938682U
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- container
- air
- blade group
- driven
- valve blade
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- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 31
- 239000008280 blood Substances 0.000 claims abstract description 28
- 210000004369 blood Anatomy 0.000 claims abstract description 28
- 239000012510 hollow fiber Substances 0.000 claims abstract description 12
- 238000000338 in vitro Methods 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 230000002612 cardiopulmonary effect Effects 0.000 abstract description 2
- 238000002618 extracorporeal membrane oxygenation Methods 0.000 description 9
- 230000017531 blood circulation Effects 0.000 description 7
- 230000000541 pulsatile effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 206010051093 Cardiopulmonary failure Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011443 conventional therapy Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000009564 veno-arterial ECMO Methods 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
The utility model discloses an external oxygenation device driven by a pneumatic pump, which comprises: the power assembly comprises a first container, an air bag is lined on the inner wall of the first container, and a first valve blade group and a second valve blade group are respectively arranged at two ends of the first container; a blood inlet is formed at the end part of the first container corresponding to the outer side of the first valve blade group, and a pneumatic pump interface is formed on the side wall of the first container; the oxygenation assembly comprises a second container, wherein the first container is partially accommodated in the second container, the second container is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inner sides of a plurality of hollow fiber bundles; the second container is internally provided with a flow dividing column, a blood outlet is arranged on the side wall of the second container and corresponds to the lower part of the second valve blade group, and blood flowing out through the second valve blade group is evenly divided to the outer side of the hollow fiber bundle through the flow dividing column and flows out through the blood outlet. The utility model effectively reduces the use threshold of the prior cardiopulmonary support and reduces the use cost.
Description
Technical Field
The utility model relates to the field of in-vitro oxygenators, in particular to an in-vitro oxygenator driven by a pneumatic pump.
Background
An extracorporeal membrane oxygenator (the extracorporeal membrane oxygenation, ECMO) is a device that draws blood out of the body through the oxygenator to partially replace heart or lung function. ECMO can provide continuous advection to the body, and generally has two forms, veno-venosus ECMO (VV ECMO) which provides only respiratory assistance and veno-arterial ECMO (VA ECMO) which provides circulatory and respiratory assistance. Over 40 years of development, ECMO has become a temporary mechanical assist technique for acute, restorative cardiopulmonary failure with mortality rates exceeding 80% as evidenced by failure of conventional therapy announcements for various reasons.
Current extracorporeal cardiopulmonary support assistance devices achieve blood flow primarily by driving the rotation of the pump head of a disposable centrifugal pump. However, the ECMO system in Europe and America or domestic can be used only by matching with centrifugal pump equipment, the centrifugal pump equipment and consumable materials thereof are very expensive, and the use popularization rate is low.
Disclosure of utility model
The utility model aims to provide an external oxygenation device driven by a pneumatic pump, which aims to reduce the use threshold of the existing heart-lung support and reduce the use cost.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an in vitro oxygenation device driven by a pneumatic pump, the device comprising:
The power assembly comprises a first container, an air bag is lined on the inner wall of the first container, a first valve blade group and a second valve blade group are respectively arranged at two ends of the first container, the first valve blade group can be opened and closed unidirectionally towards the inside of the air bag, and the second valve blade group can be opened and closed unidirectionally towards the outside of the air bag; a blood inlet is formed at the end part of the first container corresponding to the outer side of the first valve leaflet group, and a pneumatic pump interface for connecting an IABP machine is formed on the side wall of the first container;
The oxygenation assembly comprises a second container, wherein the first container is partially accommodated in the second container, the second container is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inner sides of a plurality of hollow fiber bundles; the second container is internally provided with a flow dividing column, the flow dividing column corresponds to the lower part of the second valve blade group, the side wall of the second container is provided with a bleeding port, and blood flowing out through the second valve blade group is evenly divided to the outer side of the hollow fiber bundle through the flow dividing column and flows out through the bleeding port.
Further, the first container is a tubular container.
Further, the bladder is the same size as the first container inner wall.
Further, the outer diameter of the first container is 12mm.
Further, the blood inlet and the air pump interface are both positioned outside the second container.
Further, the top end of the flow dividing column is conical.
Further, the first and second leaflet groups each include two leaflets.
Further, the diameter of the blood inlet is 8mm.
The utility model has the advantages that:
The external oxygenation device driven by the pneumatic pump is an oxygenation device integrating the pneumatic pump and the oxygenation device based on the pneumatic principle, is used by combining with the existing IABP machine, can effectively reduce the use threshold of heart and lung support, reduce the use cost and save more people's lives.
Drawings
Fig. 1 is a schematic diagram of an in vitro oxygenation device driven by a pneumatic pump according to the utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
Referring to fig. 1, fig. 1 illustrates a schematic diagram of an extracorporeal oxygenation device driven by a pneumatic pump. As shown in fig. 1, the external oxygenation device driven by the pneumatic pump provided in this embodiment mainly includes a power assembly and an oxygenation assembly.
The power assembly comprises a first container 1, an air bag 2 is lined on the inner wall of the first container 1, and a first valve blade group 3 and a second valve blade group 4 are respectively arranged at two ends of the first container 1. The first leaflet group 3 is provided so as to be capable of opening and closing unidirectionally toward the inside of the airbag 2, and a blood inlet 5 is provided corresponding to the end of the first container 1 outside the first leaflet group 3. That is, the blood flowing in through the blood inlet 5 can flow into the balloon 2 only in one direction through the first leaflet group 3. While the second leaflet set 4 is configured to be capable of unidirectional opening and closing toward the outside of the balloon 2, i.e., blood within the balloon 2 can only flow unidirectionally through the second leaflet set 4. The side wall of the first container 1 is provided with a pneumatic pump interface 6 for connecting with an IABP machine. In this embodiment, the first container 1 is a tubular container, and the size of the balloon 2 is the same as the size of the inner wall of the first container 1. The outer diameter of the first container 1 is 12mm. The diameter of the blood inlet 5 is 8mm. The first valve leaflet group 3 and the second valve leaflet group 4 both comprise two valve leaflets, and the normal state is 180 degrees of closure and unidirectional opening.
The oxygenation assembly comprises a second container 7, the first container 1 being partially housed within the second container 7, the inlet 5 and the air pump interface 6 for the first container 1 being located outside the second container 7. The second container 7 is provided with an air inlet 8 and an air outlet 9, and the air inlet 8 and the air outlet 9 are communicated with the inner sides of a plurality of hollow fiber bundles (not shown), wherein the hollow fiber bundles are common components in the oxygenator and are not described in detail. The second container 7 is internally provided with a flow dividing column 10, the flow dividing column 10 corresponds to the lower part of the second valve blade group 4, the top end of the flow dividing column 10 is conical, the side wall of the second container 7 is provided with a bleeding opening 11, blood flowing out of the air bag 2 through the second valve blade group 4 is uniformly divided to the outer side of the hollow fiber bundle through the flow dividing column 10, and after full oxygenation, the blood flows out through the bleeding opening 11.
When in clinical use, the pneumatic pump interface 6 is connected with the pneumatic pump of the IABP machine, the blood inlet 5 is connected with the blood outlet pipe of the patient, the blood outlet 11 is connected with the blood inlet section of the patient, and the blood of the patient enters the patient to provide oxygenation after the IABP machine is started to sufficiently oxygenate. In the process, when the pneumatic pump pumps air, the air bag 2 is restored to an adherent state, at the moment, the first valve blade group 3 is opened, and the second valve blade group 4 closes blood to enter the air bag 2 from the blood inlet 5; the balloon 2 is contracted when the pneumatic pump blows, the first valve leaflet group 3 is closed, the second valve leaflet group 4 is opened, and blood enters between the hollow fiber bundles of the oxygenation assembly from the balloon 2. Oxygen is blown in from the air inlet 8, enters the hollow fiber, exchanges gas with blood outside the hollow fiber, and is discharged from the air outlet after the completion of oxygenation. And oxygenated blood flows out through the stoma 11 and into the patient.
In summary, the pneumatic pump driven in vitro oxygenation device provided by the utility model can directly utilize an IABP machine to generate pulsatile blood flow, and the pulsatile blood flow enters an oxygenation assembly for oxygenation and then enters a body. The device does not need a centrifugal pump, is used in combination with IABP machines which are popular in China, can reduce a great amount of capital expenditure on one hand, can greatly reduce training curves of medical staff on the other hand, can effectively reduce the popularization period of new technical equipment, and can avoid medical errors of the medical staff caused by unfamiliar with the new technical equipment.
Further, unlike advection perfusion produced by the centrifugal pump ECMO, the blood flow produced by the device is pulsatile blood flow, is more physiological, and is more effective and reliable for the perfusion of the final organs and microcirculation of the body.
It should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, the word "comprising" does not exclude the presence of elements or devices or apparatuses not listed in a claim. The word "a" or "an" preceding a component or apparatus or device does not exclude the presence of a plurality of such components or apparatuses or devices. The use of the words first and second does not indicate any order, and the words may be interpreted as names.
Claims (8)
1. An in vitro oxygenation device driven by a pneumatic pump, the device comprising:
The power assembly comprises a first container, an air bag is lined on the inner wall of the first container, a first valve blade group and a second valve blade group are respectively arranged at two ends of the first container, the first valve blade group can be opened and closed unidirectionally towards the inside of the air bag, and the second valve blade group can be opened and closed unidirectionally towards the outside of the air bag; a blood inlet is formed at the end part of the first container corresponding to the outer side of the first valve leaflet group, and a pneumatic pump interface for connecting an IABP machine is formed on the side wall of the first container;
The oxygenation assembly comprises a second container, wherein the first container is partially accommodated in the second container, the second container is provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the inner sides of a plurality of hollow fiber bundles; the second container is internally provided with a flow dividing column, the flow dividing column corresponds to the lower part of the second valve blade group, the side wall of the second container is provided with a bleeding port, and blood flowing out through the second valve blade group is evenly divided to the outer side of the hollow fiber bundle through the flow dividing column and flows out through the bleeding port.
2. The air-operated pump-driven extracorporeal oxygenation device of claim 1, wherein the first container is a tubular container.
3. The air-operated pump-driven extracorporeal oxygenation device of claim 2, wherein the bladder is the same size as the first container inner wall.
4. The air-operated pump-driven extracorporeal oxygenation device of claim 2, wherein the first container has an outer diameter of 12mm.
5. The air-operated pump-driven extracorporeal oxygenation device of claim 1, wherein the blood inlet and air-operated pump interface are both located outside of the second container.
6. The air-operated pump-driven extracorporeal oxygenation device of claim 1, wherein the top end of the shunt column is tapered.
7. The air-driven pump-driven in vitro oxygenation device of claim 1 wherein the first leaflet group and the second leaflet group each comprise two leaflets.
8. The air-operated pump-driven extracorporeal oxygenation device of claim 1, wherein the blood inlet has a diameter of 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129045.6U CN220938682U (en) | 2023-08-08 | 2023-08-08 | External oxygenation device driven by pneumatic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129045.6U CN220938682U (en) | 2023-08-08 | 2023-08-08 | External oxygenation device driven by pneumatic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220938682U true CN220938682U (en) | 2024-05-14 |
Family
ID=91014564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322129045.6U Active CN220938682U (en) | 2023-08-08 | 2023-08-08 | External oxygenation device driven by pneumatic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220938682U (en) |
-
2023
- 2023-08-08 CN CN202322129045.6U patent/CN220938682U/en active Active
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