CN117339043A - Membrane type oxygenator - Google Patents
Membrane type oxygenator Download PDFInfo
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- CN117339043A CN117339043A CN202311657939.0A CN202311657939A CN117339043A CN 117339043 A CN117339043 A CN 117339043A CN 202311657939 A CN202311657939 A CN 202311657939A CN 117339043 A CN117339043 A CN 117339043A
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- Prior art keywords
- blood
- hollow capillary
- mixed gas
- air
- water
- Prior art date
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- 239000012528 membrane Substances 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000008280 blood Substances 0.000 claims abstract description 92
- 210000004369 blood Anatomy 0.000 claims abstract description 92
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 80
- 239000001301 oxygen Substances 0.000 claims abstract description 80
- 239000007789 gas Substances 0.000 claims abstract description 76
- 230000004087 circulation Effects 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003570 air Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000000740 bleeding effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1698—Blood oxygenators with or without heat-exchangers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
- A61M1/1623—Disposition or location of membranes relative to fluids
Abstract
The invention discloses a membrane oxygenator, which comprises a shell, an inner core and an air-oxygen mixed gas circulation channel, wherein the inner core is arranged in the shell; the inner core at least comprises a blood inlet, a blood outlet, a first hollow capillary tube and a second hollow capillary tube, wherein the blood inlet is used for blood to enter, the blood outlet is used for blood to flow out, a plurality of first hollow capillary tubes and a plurality of second hollow capillary tubes are arranged, a first gap is reserved between different first hollow capillary tubes, a second gap is reserved between different second hollow capillary tubes, and blood can sequentially flow through the first gap and the second gap; the air-oxygen mixed gas circulation channel is used for allowing air-oxygen mixed gas to pass through and is communicated with the second hollow capillary tube; the temperature of the air-oxygen mixture is the same as the blood temperature. The membrane type oxygenator can effectively avoid condensate water generation and improve blood oxygen exchange efficiency, so that stable and long-acting operation of the membrane type oxygenator is ensured.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a membrane oxygenator.
Background
The membrane oxygenator is also called membrane artificial lung and is a device capable of exchanging blood and qi. Blood gas exchange is mainly performed by hollow capillaries (membrane filaments). The air-oxygen mixed gas with a set proportion flows through the inner hole of the capillary tube, the human blood with a set flow rate flows through the outer surface of the capillary tube, in the process, carbon dioxide in the blood can enter the air-oxygen mixed gas in the inner hole of the capillary tube through the wall of the capillary tube, and oxygen in the mixed gas enters the blood through the wall of the capillary tube, so that the lung breathing function of the human body is realized.
The current oxygenators generally have the problem that the blood oxygen exchange performance is seriously reduced in the use process. Since the human blood temperature is typically around 37 degrees celsius, the ambient temperature at which the oxygenator operates is typically between 18-25 degrees celsius, i.e., the temperature of the air-oxygen mixture is typically between 18-25 degrees celsius. Because of the temperature difference between the two, a lot of condensed water can be generated in the gas path channel in the using process of the oxygenator, and the condensed water can block the inner hole of the capillary tube, so that the air-oxygen mixed gas can not flow through the capillary tube, and the blood oxygen exchange performance of the oxygenator is greatly reduced.
Therefore, how to avoid the generation of condensed water, improve the blood oxygen exchange efficiency and ensure the stable and long-acting operation of the membrane oxygenator is a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
Accordingly, the present invention is directed to a membrane oxygenator that can prevent the generation of condensed water, improve the blood oxygen exchange efficiency, and ensure the stable and long-lasting operation of the membrane oxygenator.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the membrane oxygenator comprises a shell, an inner core and an air-oxygen mixed gas circulation channel, wherein the inner core is arranged in the shell, and the air-oxygen mixed gas circulation channel is arranged between the shell and the inner core;
the inner core at least comprises a blood inlet, a blood outlet, a first hollow capillary tube and a second hollow capillary tube, wherein the blood inlet is used for blood to enter, the blood outlet is used for blood to flow out, a plurality of first hollow capillary tubes and a plurality of second hollow capillary tubes are arranged, a first gap is reserved between different first hollow capillary tubes, a second gap is reserved between different second hollow capillary tubes, and blood can sequentially flow through the first gap and the second gap;
the first hollow capillary tube is arranged at the blood inlet side, the second hollow capillary tube is arranged at the blood outlet side, and the blood inlet, the first gap, the second gap and the blood outlet are sequentially communicated;
the air-oxygen mixed gas circulation channel is used for allowing air-oxygen mixed gas to pass through and is communicated with the inner hole of the second hollow capillary tube;
the temperature of the air-oxygen mixture is the same as the blood temperature.
Optionally, the device further comprises a water circulation channel, wherein the water circulation channel is used for water with the same temperature as blood to pass through, and the water circulation channel can realize heat exchange with the air-oxygen mixed gas circulation channel so as to enable the temperature of the air-oxygen mixed gas to reach the same temperature as the blood temperature;
the water flow channel is in communication with the first hollow capillary.
Optionally, the inner core further includes a first cover plate and a second cover plate, the first cover plate is disposed on the blood inlet side, and the second cover plate is disposed on the blood outlet side.
Optionally, the shell comprises a first main shell, a second main shell, a first side shell, a second side shell, a third side shell and a fourth side shell, wherein the first main shell is arranged at the upper part of the first cover plate, and the second main shell is arranged at the upper part of the second cover plate;
the first side shell, the second side shell, the third side shell and the fourth side shell are respectively arranged on the side surfaces of the first main shell and the second main shell so as to form a closed cavity;
the first side shell and the second side shell are arranged oppositely, and the third side shell and the fourth side shell are arranged oppositely.
Optionally, the air-oxygen mixed gas circulation channel comprises a mixed gas inlet channel and a mixed gas outlet channel;
the mixed gas inlet channel is arranged between the first side shell and the second hollow capillary tube, and between the third side shell and the second hollow capillary tube;
the mixed gas outlet channel is arranged between the second side shell and the second hollow capillary tube, and between the fourth side shell and the second hollow capillary tube.
Optionally, the water flowing channel comprises a water flowing water inlet channel and a water flowing water outlet channel, and the water flowing water inlet channel is communicated with the water flowing water outlet channel;
the water flow through water inlet channel comprises a first water inlet channel and a second water inlet channel, the first water inlet channel is arranged between the first side shell and the first hollow capillary tube, the third side shell and the first hollow capillary tube, the second water inlet channel is arranged between the first side shell and the second hollow capillary tube, the third side shell and the second hollow capillary tube, and the first water inlet channel and the second water inlet channel are mutually communicated;
the water outlet channel is arranged between the second side shell and the first hollow capillary tube, and between the fourth side shell and the first hollow capillary tube.
Optionally, a heat exchange element is arranged between the mixed gas inlet channel and the second water inlet channel, and the heat exchange element can raise the temperature of the gas entering the mixed gas inlet channel to be the same as the temperature of blood.
Optionally, a heat exchange element is further arranged in the mixed gas outlet channel.
Optionally, the heat exchange member is a heat exchange grating plate.
Optionally, an air inlet and an air outlet are arranged on the shell, two ends of the air inlet are respectively communicated with the air-oxygen mixed gas inlet channel and the outside atmosphere, and two ends of the air outlet are respectively communicated with the air-oxygen mixed gas outlet channel and the outside atmosphere.
Optionally, a water inlet and a water outlet are arranged on the shell, two ends of the water inlet are respectively communicated with the heating water source and the first water inlet channel, and the water outlet is communicated with the water flow through water outlet channel.
According to the technical scheme, when blood oxygen exchange is carried out, blood of a human body enters from the blood inlet of the inner core, flows through the first gap and the second gap in sequence and then flows out of the bleeding port 202, and then enters the human body again. Compared with the prior art, the membrane oxygenator disclosed by the embodiment of the invention can effectively avoid condensate water generation and improve the blood oxygen exchange efficiency, thereby ensuring the stable and long-acting operation of the membrane oxygenator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the blood side of a membrane oxygenator according to an embodiment of the present invention;
FIG. 2 is a schematic view of the bleeding side of a membrane oxygenator in accordance with embodiments of the present invention;
FIG. 3 is a schematic structural view of an inner core according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an air-oxygen mixture flow channel according to an embodiment of the present invention;
FIG. 5 is a schematic view of a water flow channel according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a heat exchange member arrangement disclosed in an embodiment of the present invention.
Wherein, each part name is as follows:
100. a housing; 101. a first main casing; 102. a second main casing; 103. a first side case; 104. a second side case; 105. a third side case; 106. a fourth side case; 107. an air inlet; 108. an air outlet; 109. a water inlet; 110. a water outlet; 200. an inner core; 201. a blood inlet; 202. a bleeding port; 203. a first hollow capillary; 204. a second hollow capillary; 205. a first cover plate; 206. a second cover plate; 300. a first water inlet channel; 400. a second water inlet channel; 500. a water flow outlet channel; 600. an air-oxygen mixed gas inlet passage; 700. an air-oxygen mixed gas outlet channel; 800. and a heat exchange member.
Detailed Description
Accordingly, the core of the present invention is to provide a membrane oxygenator, which can avoid the generation of condensed water, improve the blood oxygen exchange efficiency, and ensure the stable and long-acting operation of the membrane oxygenator.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, fig. 1 is a schematic view illustrating a blood inlet side of a membrane oxygenator according to an embodiment of the present invention; FIG. 2 is a schematic view of the bleeding side of a membrane oxygenator in accordance with embodiments of the present invention; fig. 3 is a schematic structural view of an inner core 200 according to an embodiment of the present invention; FIG. 4 is a schematic structural diagram of an air-oxygen mixture flow channel according to an embodiment of the present invention; FIG. 5 is a schematic view of a water flow channel according to an embodiment of the present invention; fig. 6 is a schematic structural view of a heat exchange member arrangement disclosed in an embodiment of the present invention.
Referring to fig. 1 to 3, the membrane oxygenator disclosed in the embodiments of the present invention includes a housing 100, an inner core 200, and an air-oxygen mixed gas flow channel, wherein the inner core 200 is disposed in the housing 100, and the air-oxygen mixed gas flow channel is disposed between the housing 100 and the inner core 200.
The inner core 200 at least comprises a blood inlet 201, a blood outlet 202, a first hollow capillary 203 and a second hollow capillary 204, wherein the blood inlet 201 is used for blood to enter, the blood outlet 202 is used for blood to flow out, the first hollow capillary 203 and the second hollow capillary 204 are multiple, a first gap is formed between different first hollow capillaries 203, a second gap is formed between different second hollow capillaries 204, and blood can sequentially flow through the first gap and the second gap.
The first hollow capillary 203 is disposed on the blood inlet 201 side, the second hollow capillary 204 is disposed on the blood outlet 202 side, and the blood inlet 201, the outer wall of the first hollow capillary 203, the outer wall of the second hollow capillary 204 and the blood outlet 202 are sequentially communicated.
The air-oxygen mixed gas flow passage is used for passing the air-oxygen mixed gas, and is communicated with the second hollow capillary 204;
the temperature of the air-oxygen mixture gas was the same as the blood temperature.
When blood oxygen exchange is performed, blood of a human body enters from the blood inlet 201 of the inner core 200, flows out of the blood outlet 202 after sequentially flowing through the first gap and the second gap, then enters the human body again, when the blood flows through the first gap and the second gap, air-oxygen mixed gas enters into the inner hole of the second hollow capillary 204 through the air-oxygen mixed gas circulation channel, and as the temperature of the air-oxygen mixed gas is the same as that of the blood, when the blood passes through the second gap and the air-oxygen mixed gas in the second hollow capillary 204 to perform blood oxygen exchange, condensed water cannot be generated on the pipe wall of the second hollow capillary 204 due to temperature difference. Compared with the prior art, the membrane oxygenator disclosed by the embodiment of the invention can effectively avoid condensate water generation and improve the blood oxygen exchange efficiency, thereby ensuring the stable and long-acting operation of the membrane oxygenator.
The embodiment of the invention does not limit the heating mode of the air-oxygen mixed gas, and the heating mode meeting the use requirement of the invention is within the protection scope of the invention.
As one possible embodiment, the temperature of the air-oxygen mixture disclosed in the embodiment of the present invention may be heated by the outside, and then the heated air-oxygen mixture is delivered into the second hollow capillary 204.
As another possible embodiment, the air-oxygen mixture disclosed in the embodiments of the present invention may be taken from the outside ambient air, and the temperature of the air-oxygen mixture is brought to the same temperature as the blood temperature by heating in the membrane oxygenator.
Specifically, the membrane oxygenator disclosed by the embodiment of the invention further comprises a water circulation channel, wherein the water circulation channel is used for water with the same temperature as blood to pass through, and the water circulation channel can realize heat exchange with the air-oxygen mixed gas circulation channel so that the temperature of the air-oxygen mixed gas reaches the same temperature as the blood.
Wherein the water flow channel is in communication with the first hollow capillary 203.
The disclosed water in the embodiments of the present invention is heated to the same temperature as the blood temperature prior to entering the membrane oxygenator. Water may enter the first hollow capillary 203 through the water flow channel while the water may exchange heat with the air-oxygen mixed gas flow channel while flowing through the water flow channel, thereby heating the air-oxygen mixed gas to the same temperature as the blood temperature.
The first hollow capillary 203 and the second hollow capillary 204 each include thousands of capillaries arranged in a crisscross manner.
In order to improve the tightness of the first hollow capillary 203 and the second hollow capillary 204, the inner core 200 disclosed in the implementation of the present invention further includes a first cover 205 and a second cover 206, where the first cover 205 is disposed on the blood inlet 201 side, and the second cover 206 is disposed on the blood outlet 202 side.
The specific structure of the housing 100 is not limited in the embodiment of the present invention, and the housing 100 may have a rectangular structure, a circular structure, or other structures, as long as the structure meeting the use requirement of the present invention is within the protection scope of the present invention.
In order to facilitate the arrangement of the inner core 200, the air-oxygen mixture gas flow passage, the water flow passage, and the like, the casing 100 according to the embodiment of the present invention is preferably rectangular in structure.
Specifically, the housing 100 includes a first main casing 101, a second main casing 102, a first side casing 103, a second side casing 104, a third side casing 105 and a fourth side casing 106,
wherein, the first main casing 101 is disposed on the upper portion of the first cover plate 205, the second main casing 102 is disposed on the upper portion of the second cover plate 206, the first side casing 103, the second side casing 104, the third side casing 105 and the fourth side casing 106 are disposed on the sides of the first main casing 101 and the second main casing 102 respectively, so as to form a closed cavity, the first side casing 103 and the second side casing 104 are disposed oppositely, and the third side casing 105 and the fourth side casing 106 are disposed oppositely.
The embodiment of the invention does not limit the specific arrangement mode of the air-oxygen mixed gas circulation channel, and the arrangement mode meeting the use requirement of the invention is within the protection scope of the invention.
As a possible embodiment, referring to fig. 4, the air-oxygen mixed gas circulation channel disclosed in the embodiment of the invention includes a mixed gas inlet channel and a mixed gas outlet channel.
Wherein, the mixed gas inlet channel is arranged between the first side shell 103 and the second hollow capillary 204, and between the third side shell 105 and the second hollow capillary 204.
The mixed gas outlet channel is disposed between the second side shell 104 and the second hollow capillary 204, and between the fourth side shell 106 and the second hollow capillary 204.
It should be noted that, since the first hollow capillary 203 and the second hollow capillary 204 are arranged in a staggered manner, and the capillaries arranged laterally in the first hollow capillary 203 and the second hollow capillary 204 are arranged parallel to the third side case 105, and the capillaries arranged vertically in the first hollow capillary 203 and the second hollow capillary 204 are arranged parallel to the first side case 103, which will be described with reference to fig. 1.
The capillaries arranged laterally in the first hollow capillary 203 are disposed between the first side case 103 and the second side case 104, and the capillaries arranged vertically in the first hollow capillary 203 are disposed between the third side case 105 and the fourth side case 106. The capillaries arranged laterally in the second hollow capillary 204 are disposed between the first side case 103 and the second side case 104, and the capillaries arranged vertically in the second hollow capillary 204 are disposed between the third side case 105 and the fourth side case 106.
Wherein, the air-oxygen mixture flowing through the air-oxygen mixture inlet channel 600 between the first side shell 103 and the second hollow capillary 204 enters from one end of the capillary tube arranged laterally in the second hollow capillary tube 204, and flows out from the other end of the capillary tube arranged laterally in the second hollow capillary tube 204, and enters into the air-oxygen mixture outlet channel 700 between the second side shell 104 and the second hollow capillary tube 204.
Accordingly, the air-oxygen mixture flowing through the air-oxygen mixture inlet channel 600 between the third side case 105 and the second hollow capillary tube 204 enters from one end of the vertically arranged capillary tube of the second hollow capillary tube 204, and flows out from the other end of the vertically arranged capillary tube of the second hollow capillary tube 204 into the air-oxygen mixture outlet channel 700 between the fourth side case 106 and the second hollow capillary tube 204.
By the arrangement, the exchange of the air-oxygen mixed gas and blood oxygen of blood can be realized.
The specific arrangement mode of the water circulation channels is not limited in the embodiment of the invention, and the arrangement mode meeting the use requirement of the invention is within the protection scope of the invention.
As a possible embodiment, referring to fig. 5 and 6, the water flow channel disclosed in the embodiment of the present invention includes a water flow inlet channel and a water flow outlet channel 500, where the water flow inlet channel and the water flow outlet channel 500 are in communication.
The water flowing through the water inlet channel includes a first water inlet channel 300 and a second water inlet channel 400, the first water inlet channel 300 is disposed between the first side shell 103 and the first hollow capillary 203, and between the third side shell 105 and the first hollow capillary 203, the second water inlet channel 400 is disposed between the first side shell 103 and the second hollow capillary 204, and between the third side shell 105 and the second hollow capillary 204, and the first water inlet channel 300 and the second water inlet channel 400 are mutually communicated. The water flow-through outlet channel 500 is provided between the second side case 104 and the first hollow capillary 203, and between the fourth side case 106 and the first hollow capillary 203.
A heat exchange member 800 is provided between the air-oxygen mixture gas intake passage 600 and the second water intake passage 400, and the heat exchange member 800 can raise the temperature of the gas entering the air-oxygen mixture gas intake passage 600 to the same temperature as the blood temperature.
Wherein water flowing through the first water inlet channel 300 between the first side case 103 and the first hollow capillary 203 enters from one end of the capillary laterally arranged in the first hollow capillary 203, and flows out from the other end of the capillary laterally arranged in the first hollow capillary 203, and water flowing into the second side case 104 and the first hollow capillary 203 passes through the water outlet channel 500.
The water flowing through the second water inlet channel 400 between the second side shell 104 and the first hollow capillary 203 enters from one end of the capillary vertically arranged in the first hollow capillary 203, and flows out from the other end of the capillary vertically arranged in the first hollow capillary 203, and the water flowing into the water outlet channel 500 between the fourth side shell 106 and the first hollow capillary 203.
Since the first water inlet passage 300 and the second water inlet passage 400 are communicated with each other, water enters the second water inlet passage 400 while flowing through the first water inlet passage 300, and since the heat exchange member 800 is disposed between the air-oxygen mixed gas inlet passage 600 and the second water inlet passage 400, the water heats the air-oxygen mixed gas passing through the air-oxygen mixed gas inlet passage 600 to the same temperature as the blood temperature by the heat exchange member 800.
As a further example, the membrane oxygenator disclosed in the embodiments of the present invention is further provided with a heat exchange member 800 in the mixed gas outlet channel. Wherein the heat exchanging member 800 may prevent the second and fourth side cases 104 and 106 from generating condensed water.
The specific structure of the heat exchange member 800 is not limited in the embodiment of the present invention, and any structure satisfying the use requirements of the present invention is within the scope of the present invention.
As one possible embodiment, the disclosed heat exchange member 800 is preferably a heat exchange grating plate.
It should be noted that, in the embodiment of the present invention, the housing 100 is provided with an air inlet 107 and an air outlet 108, where two ends of the air inlet 107 are respectively communicated with the air-oxygen mixed gas inlet channel 600 and the outside atmosphere, and the air outlet 108 is respectively communicated with the air-oxygen mixed gas outlet channel 700 and the outside atmosphere.
The shell 100 disclosed in the embodiment of the present invention is provided with a water inlet 109 and a water outlet 110, wherein two ends of the water inlet 109 are respectively communicated with a heating water source and the first water inlet channel 300, and the water outlet 110 is communicated with a water flow through water outlet channel 500.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The membrane type oxygenator is characterized by comprising a shell, an inner core and an air-oxygen mixed gas circulation channel, wherein the inner core is arranged in the shell, and the air-oxygen mixed gas circulation channels are arranged between the shell and the inner core;
the inner core at least comprises a blood inlet, a blood outlet, a first hollow capillary and a second hollow capillary, wherein the blood inlet is used for blood to enter, the blood outlet is used for blood to flow out, the first hollow capillary and the second hollow capillary are multiple, a first gap is formed between different first hollow capillaries, a second gap is formed between different second hollow capillaries, and blood can sequentially flow through the first gap and the second gap;
the first hollow capillary tube is arranged on the blood inlet side, the second hollow capillary tube is arranged on the blood outlet side, and the blood inlet, the first gap, the second gap and the blood outlet are sequentially communicated;
the air-oxygen mixed gas circulation channel is used for allowing air-oxygen mixed gas to pass through, and is communicated with the second hollow capillary tube;
the temperature of the air-oxygen mixture is the same as the blood temperature.
2. The membrane oxygenator according to claim 1, further comprising a water flow channel for the passage of water at the same temperature as the blood, and wherein the water flow channel is capable of effecting heat exchange with the air-oxygen mixed gas flow channel so that the temperature of the air-oxygen mixed gas reaches the same temperature as the blood temperature;
the water flow passage is in communication with the first hollow capillary.
3. The membrane oxygenator according to claim 2, wherein the inner core further comprises a first cover plate disposed on the blood inlet side and a second cover plate disposed on the blood outlet side.
4. A membrane oxygenator according to claim 3 wherein the housing comprises a first main housing, a second main housing, a first side housing, a second side housing, a third side housing and a fourth side housing, the first main housing being disposed on the first cover plate upper portion and the second main housing being disposed on the second cover plate upper portion;
the first side shell, the second side shell, the third side shell and the fourth side shell are respectively arranged on the side surfaces of the first main shell and the second main shell so as to form a closed cavity;
the first side shell and the second side shell are oppositely arranged, and the third side shell and the fourth side shell are oppositely arranged.
5. The membrane oxygenator according to claim 4, wherein the air-oxygen mixed gas flow passage comprises a mixed gas inlet passage and a mixed gas outlet passage;
the mixed gas inlet channel is arranged between the first side shell and the second hollow capillary tube, and between the third side shell and the second hollow capillary tube;
the mixed gas outlet channel is arranged between the second side shell and the second hollow capillary tube, and between the fourth side shell and the second hollow capillary tube.
6. The membrane oxygenator according to claim 5, wherein the water flow passage comprises a water flow inlet passage and a water flow outlet passage, the water flow inlet passage and the water flow outlet passage being in communication;
the water flowing through water inlet channel comprises a first water inlet channel and a second water inlet channel, the first water inlet channel is arranged between the first side shell and the first hollow capillary tube, the third side shell and the first hollow capillary tube, the second water inlet channel is arranged between the first side shell and the second hollow capillary tube, the third side shell and the second hollow capillary tube, and the first water inlet channel and the second water inlet channel are mutually communicated;
the water flow-through water outlet channel is arranged between the second side shell and the first hollow capillary tube, and between the fourth side shell and the first hollow capillary tube;
a heat exchange member is provided between the mixed gas inlet passage and the second water inlet passage, and the heat exchange member is capable of raising the temperature of the gas entering the mixed gas inlet passage to the same temperature as the blood temperature.
7. The membrane oxygenator according to claim 5, wherein a heat exchange member is further disposed in the mixed gas outlet passage.
8. A membrane oxygenator according to claim 6 or 7, wherein the heat exchange member is a heat exchange grid plate.
9. The membrane oxygenator according to claim 5, wherein the housing is provided with an air inlet and an air outlet, both ends of the air inlet are respectively communicated with the air-oxygen mixed gas inlet passage and the outside atmosphere, and both ends of the air outlet are respectively communicated with the air-oxygen mixed gas outlet passage and the outside atmosphere.
10. The membrane oxygenator according to claim 6, wherein a water inlet and a water outlet are provided on the housing, the water inlet being in communication with a source of heated water and the first water inlet channel at each end thereof, and the water outlet being in communication with the water flow-through water outlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311657939.0A CN117339043B (en) | 2023-12-06 | 2023-12-06 | Membrane type oxygenator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311657939.0A CN117339043B (en) | 2023-12-06 | 2023-12-06 | Membrane type oxygenator |
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| CN117339043B CN117339043B (en) | 2024-03-12 |
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Citations (8)
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|---|---|---|---|---|
| JP2000005302A (en) * | 1998-06-26 | 2000-01-11 | Dainippon Ink & Chem Inc | Gas exchanging method |
| JP2001170169A (en) * | 1999-12-21 | 2001-06-26 | Jms Co Ltd | Artificial lung device incorporating heat exchanger |
| JP2012135434A (en) * | 2010-12-27 | 2012-07-19 | Terumo Corp | Artificial lung |
| JP2016067547A (en) * | 2014-09-29 | 2016-05-09 | テルモ株式会社 | Oxygenator |
| CN205698671U (en) * | 2016-04-05 | 2016-11-23 | 裴嘉阳 | A kind of membrane oxygenator |
| CN107929839A (en) * | 2018-01-16 | 2018-04-20 | 王辉山 | A kind of portable membrane oxygenator and preparation method and its oxygen close method |
| CN109803695A (en) * | 2016-08-08 | 2019-05-24 | 伊克尼奥斯股份有限公司 | Oxygenator including heating element |
| US20210077701A1 (en) * | 2017-06-01 | 2021-03-18 | Sorin Group Italia S.R.L. | Oxygenator with thermal insulation |
-
2023
- 2023-12-06 CN CN202311657939.0A patent/CN117339043B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005302A (en) * | 1998-06-26 | 2000-01-11 | Dainippon Ink & Chem Inc | Gas exchanging method |
| JP2001170169A (en) * | 1999-12-21 | 2001-06-26 | Jms Co Ltd | Artificial lung device incorporating heat exchanger |
| JP2012135434A (en) * | 2010-12-27 | 2012-07-19 | Terumo Corp | Artificial lung |
| JP2016067547A (en) * | 2014-09-29 | 2016-05-09 | テルモ株式会社 | Oxygenator |
| CN205698671U (en) * | 2016-04-05 | 2016-11-23 | 裴嘉阳 | A kind of membrane oxygenator |
| CN109803695A (en) * | 2016-08-08 | 2019-05-24 | 伊克尼奥斯股份有限公司 | Oxygenator including heating element |
| US20210077701A1 (en) * | 2017-06-01 | 2021-03-18 | Sorin Group Italia S.R.L. | Oxygenator with thermal insulation |
| CN107929839A (en) * | 2018-01-16 | 2018-04-20 | 王辉山 | A kind of portable membrane oxygenator and preparation method and its oxygen close method |
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| CN117339043B (en) | 2024-03-12 |
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