CN116212139A - Oxygenator upper cover structure, oxygenator shell and oxygenator - Google Patents

Oxygenator upper cover structure, oxygenator shell and oxygenator Download PDF

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Publication number
CN116212139A
CN116212139A CN202310161579.9A CN202310161579A CN116212139A CN 116212139 A CN116212139 A CN 116212139A CN 202310161579 A CN202310161579 A CN 202310161579A CN 116212139 A CN116212139 A CN 116212139A
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China
Prior art keywords
oxygenator
ring
isolating ring
pipe
inlet pipe
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CN202310161579.9A
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Chinese (zh)
Inventor
李轶江
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Shenzhen Hno Medical Technology Co ltd
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Shenzhen Hno Medical Technology Co ltd
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Priority to CN202310161579.9A priority Critical patent/CN116212139A/en
Publication of CN116212139A publication Critical patent/CN116212139A/en
Priority to CN202310916739.6A priority patent/CN116850360A/en
Priority to CN202310919276.9A priority patent/CN116850361A/en
Pending legal-status Critical Current

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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
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • 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
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3666—Cardiac or cardiopulmonary bypass, e.g. heart-lung machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • External Artificial Organs (AREA)

Abstract

The embodiment of the application provides an oxygenator upper cover structure, an oxygenator shell and an oxygenator, wherein the oxygenator upper cover structure comprises an upper cover body, a blood inlet pipe, a liquid discharge pipe and an air inlet pipe; the upper cover body is provided with a first chamber, and a first isolating ring, a second isolating ring and a third isolating ring are arranged in the first chamber; the blood inlet tube sequentially penetrates through the first isolating ring, the second isolating ring and the third isolating ring from outside to inside, and the blood inlet tube is communicated with a space surrounded by the third isolating ring; the liquid discharge pipe is communicated with a channel between the second isolating ring and the third isolating ring, and the air inlet pipe is communicated with a channel between the first isolating ring and the second isolating ring; the first isolating ring, the second isolating ring and the third isolating ring are concentrically arranged, the first distance between the first isolating ring and the second isolating ring in the first direction is larger than the second distance between the first isolating ring and the second isolating ring in the second direction, the first direction is the extending direction of the liquid discharge pipe from inside to outside, and the first direction is opposite to the second direction. The oxygenation efficiency can be improved through the embodiment of the application.

Description

Oxygenator upper cover structure, oxygenator shell and oxygenator
Technical Field
The application relates to the technical field of in-vitro oxygenation, in particular to an oxygenator upper cover structure, an oxygenator shell and an oxygenator.
Background
The extracorporeal membrane oxygenation (ECMO) is to draw in the blood outside the body, and then to inject the blood into the artery or vein system of the patient after the artificial cardiopulmonary bypass oxygenation of special materials, so as to play a part of the role of heart and lung replacement and maintain the oxygenation blood supply of the organ tissues of the human body. The oxygenator is an important component in the ECMO system, and provides maintenance of extracorporeal blood temperature, performance of blood oxygenation function, and three circulation paths are mainly performed in the oxygenator: a blood path, wherein the blood enters the oxygenator through a specific channel and is heated by a temperature changing film area of the oxygenator so as to maintain constant blood temperature; the gas circuit, oxygen permeates into the blood through the oxygenation membrane wire of the oxygenation area, and carbon dioxide in venous blood permeates into the oxygenation membrane wire and is released from the blood; the waterway, the liquid with constant temperature provides heat energy to the blood through the temperature changing membrane wire, and the temperature of the blood in the extracorporeal circulation pipeline is maintained.
The prior air channel arrangement of the oxygenator is not beneficial to improving the oxygenation efficiency, so that the technical problem that needs to be solved at present is how to improve the oxygenation efficiency of the air channel under the condition that the waterway of the blood channel is unchanged.
Disclosure of Invention
In order to solve or alleviate all or part of the above problems, embodiments of the present application provide an oxygenator upper cover structure, an oxygenator housing, and a membrane oxygenator.
In a first aspect, embodiments of the present application provide an oxygenator upper cover structure, including an upper cover body, a blood inlet tube, a liquid discharge tube, and an air inlet tube;
the upper cover body is provided with a first chamber, and a first isolating ring, a second isolating ring and a third isolating ring are arranged in the first chamber;
the blood inlet tube sequentially penetrates through the first isolating ring, the second isolating ring and the third isolating ring from outside to inside, and the blood inlet tube is communicated with a space surrounded by the third isolating ring;
the liquid discharge pipe is communicated with a channel between the second isolating ring and the third isolating ring, and the air inlet pipe is communicated with a channel between the first isolating ring and the second isolating ring;
the first distance between the first isolation ring and the second isolation ring is larger than the second distance between the first isolation ring and the second isolation ring in the first direction, the first direction is the extending direction of the liquid discharge pipe from inside to outside, and the first direction is opposite to the second direction.
As a preferred embodiment of the present application, a third distance between the first spacer ring and the second spacer ring in a third direction is the same as a fourth distance between the first spacer ring and the second spacer ring in a fourth direction;
the third direction is perpendicular to the first direction, and the third direction is opposite to the fourth direction.
As a preferred embodiment of the present application, the second spacer ring and the third spacer ring are concentrically arranged.
As a preferred embodiment of the application, the heights of the first isolating ring are smaller than the heights of the side walls of the second isolating ring, the third isolating ring and the upper cover body.
As a preferred embodiment of the present application, the cross-sectional area enclosed by the first isolation ring is 30-40% of the cross-sectional area of the whole upper cover structure.
As a preferred embodiment of the present application, the liquid discharge pipe and the liquid inlet pipe are parallel to each other and in the same direction, and the air inlet pipe and the air outlet pipe are parallel to each other and in the same direction;
the inlet pipe is perpendicular to the liquid discharge pipe and the air inlet pipe respectively, the liquid discharge pipe and the air inlet pipe are arranged in parallel and are positioned on the same side, and the inlet pipe, the liquid discharge pipe and the air inlet pipe are arranged on the horizontal plane where the upper cover body is located.
As a preferred embodiment of the present application, the drain pipe is disposed between the intake pipe and the intake pipe.
Compared with the prior art, the embodiment of the application provides an oxygenator upper cover structure, which comprises an upper cover body, a blood inlet pipe, a liquid discharge pipe and an air inlet pipe; the upper cover body is provided with a first chamber, and a first isolating ring, a second isolating ring and a third isolating ring are arranged in the first chamber; the blood inlet tube sequentially penetrates through the first isolating ring, the second isolating ring and the third isolating ring from outside to inside, and the blood inlet tube is communicated with a space surrounded by the third isolating ring; the liquid discharge pipe is communicated with a channel between the second isolating ring and the third isolating ring, and the air inlet pipe is communicated with a channel between the first isolating ring and the second isolating ring; the first distance between the first isolation ring and the second isolation ring is larger than the second distance between the first isolation ring and the second isolation ring in the first direction, the first direction is the extending direction of the liquid discharge pipe from inside to outside, and the first direction is opposite to the second direction. Through this application embodiment, in the region of letting in oxygen of upper cover, set up the flow choking district of different shapes and the direction of air inlet air current, under the same blood flow direction and velocity of flow circumstances, the efficiency of oxygenation is different, can improve the oxygenation efficiency of blood through this application embodiment.
In a second aspect, embodiments of the present application provide an oxygenator housing comprising a lower cover structure, a housing body and an oxygenator upper cover structure according to any one of the first aspects;
the upper cover body is arranged at the upper end of the shell body, and the lower cover structure is arranged at the lower end of the cover body;
one side of the lower end of the shell body is provided with a blood drainage tube;
the lower cover structure includes: the liquid inlet pipe, the exhaust pipe and the exhaust port are arranged on the lower cover body and are positioned on the same horizontal plane;
the liquid discharge pipe and the liquid inlet pipe are parallel to each other and are positioned in the same direction, and the air inlet pipe and the air outlet pipe are parallel to each other and are positioned in the same direction; the blood inlet pipe is respectively perpendicular to the liquid discharge pipe and the air inlet pipe, and the liquid discharge pipe and the air inlet pipe are mutually parallel and are positioned on the same side.
As a preferred embodiment of the application, the lower cover body is provided with a second chamber, and a fourth isolating ring, a fifth isolating ring and a plurality of rib structures are arranged in the second chamber;
the fifth isolating ring is arranged at the periphery of the fourth isolating ring at intervals, and the plurality of rib structures are arranged at the periphery of the fifth isolating ring at intervals;
the exhaust pipe is arranged on the side wall of the lower cover body, and is communicated with the channel between the side wall of the lower cover body and the fifth isolating ring;
the liquid inlet pipe and the exhaust pipe are arranged in parallel and on the same side, and the exhaust port is arranged in the middle area of the liquid inlet pipe and the exhaust pipe.
As a preferred embodiment of the application, the diameter of the lower cover body where the exhaust port is located is respectively perpendicular to the liquid inlet pipe and the exhaust pipe.
As a preferred embodiment of the present application, the vertical distance between the straight line where the exhaust port is located and the liquid inlet pipe is greater than the vertical distance between the straight line where the exhaust port is located and the exhaust pipe, and the straight line where the exhaust port is located and the liquid inlet pipe and the exhaust pipe are parallel to each other.
As a preferred embodiment of the present application, a plurality of rib structures are all vertically disposed in the cavity, the heights of a plurality of rib structures are the same, and a plurality of rib structures are all lower than the side wall height of the lower cover body and the fifth isolating ring height.
As a preferred embodiment of the present application, two adjacent rib structures are not connected end to end and are arranged at intervals.
As a preferred embodiment of the present application, one end of each rib structure is connected to the side wall of the lower cover body, and a preset distance is provided between the other end of each rib structure and the side wall of the lower cover body.
As a preferred embodiment of the application, a rib structure is symmetrically distributed on two sides of the blood drainage tube.
As a preferred embodiment of the present application, a preset distance is provided between the exhaust pipe and the other end of the adjacent rib structure.
As a preferred embodiment of the present application, the drainage tube is disposed along the radial direction of the lower cover body, and the drainage tube and the exhaust tube are disposed on a horizontal plane where the lower cover body is located.
In a third aspect, embodiments of the present application also provide an oxygenator comprising an oxygenator housing according to the second aspect.
Compared with the prior art, the technical solutions provided in the second aspect and the third aspect have the same advantages as those in the first aspect, and are not described herein.
Drawings
Fig. 1 is a schematic top view of a membrane type membrane oxygenator according to an embodiment of the present disclosure;
fig. 2 is a schematic bottom view of a membrane type membrane oxygenator according to an embodiment of the present disclosure;
fig. 3 is a schematic top view of a lower cover structure of a membrane type membrane oxygenator according to an embodiment of the present application;
fig. 4 is a schematic bottom view of a lower cover structure of a membrane type membrane oxygenator according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 and 2, an embodiment of the present application provides an oxygenator upper cover structure, which includes an upper cover body 09, a blood inlet pipe 08, a liquid discharge pipe 10, and an air inlet pipe 11;
the upper cover body 09 is provided with a first chamber, and a first isolating ring 12, a second isolating ring 13 and a third isolating ring 14 are arranged in the first chamber;
the blood inlet tube 08 sequentially penetrates through the first isolating ring 12, the second isolating ring 13 and the third isolating ring 14 from outside to inside, and the blood inlet tube 08 is communicated with a space surrounded by the third isolating ring 14;
the liquid discharge pipe is communicated with the channel between the second isolation ring 13 and the third isolation ring 14, and the air inlet pipe 08 is communicated with the channel between the first isolation ring 12 and the second isolation ring 13;
a first distance between the first spacer ring 12 and the second spacer ring 13 in a first direction, which is an extending direction of the drain pipe 10 from the inside to the outside, is larger than a second distance between the first spacer ring 12 and the second spacer ring 13 in a second direction, which is opposite to the first direction. In this embodiment of the present application, experiments show that after oxygen enters the upper cover region, the dispersion paths and speeds of the gases are different, and the oxygenation efficiency of the blood is different, and the oxygenation efficiency of the blood may be obtained by testing and calculating the conversion rate of oxygen and carbon dioxide through the inlet pipe and the outlet pipe of the oxygenator, specifically, oxygen is dispersed from the outer side of the side wall edge of the upper cover body 09 or from the inner side of the oxygenation region, the shape of the isolation belt of the dispersion region has an effect on the oxygenation efficiency of the blood greater than that of the dispersion starting position, when the first distance between the first isolation ring 12 and the second isolation ring 13 in the first direction is greater than that between the first isolation ring 12 and the second isolation ring 13 in the second direction, the oxygenation efficiency of the blood is optimal, and the applicant verifies that the cross-sectional area of the first isolation ring 12 is circular and square, and that the cross-sectional area of the first isolation ring 12 is a few of oval-like oxygenation efficiency of the blood is worse than that of the first isolation ring 12.
As a preferred embodiment of the present application, the first spacer ring 12 and the second spacer ring 13 are concentrically arranged.
As a preferred embodiment of the present application, the heights of the first isolating ring 12 are smaller than the heights of the second isolating ring 13, the third isolating ring 14 and the side wall of the upper cover body 09. The embodiment of the present application is mainly to facilitate the discharge of the carbon dioxide after the oxygenation of the blood by setting the height of the first spacer ring 12 lower.
As a preferred embodiment of the present application, the cross-sectional area enclosed by the first spacer ring 12 is 30-40%, preferably 35% of the cross-sectional area of the whole upper cover structure. Experiments show that the oxygenation efficiency is different under the conditions of the same blood flow direction and flow velocity by arranging flow blocking areas with different shapes and the directions of air flows at the air inlets in the oxygen-introducing area of the upper cover.
As a preferred embodiment of the present application, the liquid discharge pipe 10 and the air inlet pipe 11 are disposed parallel to each other, the air inlet pipe 08 is disposed perpendicular to the liquid discharge pipe 10 and the air inlet pipe 11, the liquid discharge pipe 10 and the air inlet pipe 11 are disposed on the same side, and the liquid discharge pipe 10 and the air inlet pipe 11 are disposed on the horizontal plane where the upper cover body 09 is disposed.
As a preferred embodiment of the present application, the drain pipe 20 is disposed between the intake pipe 08 and the intake pipe 22.
In a second aspect, embodiments of the present application further provide an oxygenator housing, the housing comprising a lower cover structure, a housing body and an oxygenator upper cover structure according to the first aspect;
the upper cover body 09 is disposed at the upper end of the housing body, the lower cover structure is disposed at the lower end of the housing body, as shown in fig. 3 and 4, and the lower cover structure includes: a lower cover body 01, a liquid inlet pipe 06, an exhaust pipe 07 and an exhaust port 05;
the liquid inlet pipe 06, the exhaust pipe 07 and the exhaust port 05 are arranged on the lower cover body 01 and are positioned on the same horizontal plane; the liquid discharge pipe 10 and the liquid inlet pipe 06 are parallel to each other and are in the same direction, and the air inlet pipe 11 and the air outlet pipe 07 are parallel to each other and are in the same direction; the blood inlet pipe 08 is respectively perpendicular to the liquid discharge pipe 10 and the air inlet pipe 06, and the liquid discharge pipe 10 and the air inlet pipe 06 are mutually parallel and are positioned on the same side. Through the above-mentioned fluid-discharge tube 20 of upper cover structure, intake pipe 11 and advance the blast pipe of the lower cover structure of vascular 08 and oxygenator, vascular and gas vent mutually support and set up, are favorable to improving the oxygenator to the oxygenation efficiency of blood.
The lower cover body 01 is provided with a second chamber, and a fourth isolating ring 04, a fifth isolating ring 03 and a plurality of rib structures 02 are arranged in the second chamber;
the fifth isolating rings 03 are arranged at intervals on the periphery of the fourth isolating rings 04, and a plurality of rib structures 02 are arranged at intervals on the periphery of the fifth isolating rings 03;
the liquid inlet pipe 06 sequentially penetrates through the side wall of the lower cover body 01 and the fifth isolating ring 03 from outside to inside, the liquid inlet pipe 06 is communicated with a channel between the fourth isolating ring 04 and the fifth isolating ring 03, one end of the liquid inlet pipe 06 is arranged on the fifth isolating ring 03, the exhaust pipe 07 is arranged on the side wall of the lower cover body 01, and the exhaust pipe 07 is communicated with the channel between the side wall of the lower cover body 01 and the fifth isolating ring 03;
the liquid inlet pipe 06 and the exhaust pipe 07 are arranged in parallel and on the same side, and the exhaust port 05 is arranged in the middle area of the liquid inlet pipe 06 and the exhaust pipe 07.
In the embodiment of the present application, a plurality of rib structures 02 are provided to have heat dissipation and flow guiding effects, and the carbon dioxide discharged in advance is subjected to heat dissipation and flow guiding by the plurality of rib structures 02 so as to be discharged from the exhaust pipe 07, in the embodiment of the present application, seven rib structures 02 are preferably provided.
The vertical distance between the straight line where the exhaust port 05 is located and the liquid inlet pipe 06 is greater than the vertical distance between the straight line where the exhaust port 05 is located and the exhaust pipe 07, and the straight line where the exhaust port 05 is located, the liquid inlet pipe 06 and the exhaust pipe 07 are arranged in parallel.
The position design of the exhaust port 05 is verified by experiments, and the positions of the exhaust ports B1/B2/B3 are only examples of the embodiment, such as the positions of the exhaust ports at the positions of B1/B2/B3 under different oxygen flow rates 2 Total amount and O of scavenging 2 The total exchange amount is measured, and the data related to gas exchange at the position B1 is found to be obviously higher than the data related to gas exchange at the positions B2 and B3, and the condensed water generated at the outlet of the gas path can be discharged by the gas outlet 05 because the condensed water is generated when the outlet of the gas path of the whole oxygenator is cooled.
In this embodiment of the present application, the upper cover structure and the lower cover structure of the oxygenator are concentrically arranged, and the cross sections of the upper cover structure and the lower cover structure are circular, in a specific use, a heat exchange medium, such as water, flows through the channel between the first isolation ring 04 and the second isolation ring 03, and the heat exchange medium enters the channel between the first isolation ring 04 and the second isolation ring 03 through the liquid inlet pipe 06 so as to heat and insulate blood. The first isolating ring 04 is fixedly provided with a flow dividing column, the flow dividing column is used for dividing blood entering the oxygenator, an oxygenation membrane is arranged on the periphery of the flow dividing column, a channel flow between the side wall of the lower cover body 01 and the second isolating ring 03 is a channel through which carbon dioxide gas flows, and the exhaust pipe 07 is used for exhausting carbon dioxide in the blood after oxygen passes through the oxygenation membrane.
As a preferred embodiment of the present application, a plurality of rib structures 02 are vertically disposed in the second chamber, the rib structures 02 are strip structures, the heights of a plurality of rib structures 02 are the same, and the heights of a plurality of rib structures 02 are lower than the side wall height of the lower cover body 01 and the height of the second isolating ring 03. In this embodiment of the present application, a plurality of rib structures 02 are vertically disposed in the second chamber, because the contact area between the carbon dioxide gas exhausted after the oxygenation of the blood and the rib structures 02 is larger, which is favorable for the diversion effect of a plurality of rib structures 02, the rib structures 02 can make the carbon dioxide flow more uniformly and faster to the exhaust pipe 07 and the exhaust port 05, and such "steady flow" effect is favorable for the flow of the whole oxygen in the oxygenator, so that the oxygenation efficiency of the oxygenator is better.
As a preferred embodiment of the present application, two adjacent rib structures 02 are not connected end to end and are arranged at intervals, and the flow guiding and discharging of the oxygenated gas are facilitated by arranging two adjacent rib structures 02 end to end and not connected to each other and at intervals.
As a preferred embodiment of the present application, one end of each rib structure 02 is connected to the side wall of the lower cover body 01, and a preset distance is provided between the other end of each rib structure 02 and the side wall of the lower cover body 01, so that carbon dioxide generated in the whole oxygenation process can be temporarily stored, so as to avoid too much gas at the inlet of the exhaust pipe 07 to be discharged in time.
As a preferred embodiment of the present application, a rib structure 02 is symmetrically distributed on two sides of the liquid inlet tube 06. The two sides of the liquid inlet pipe 06 are symmetrically distributed with a rib structure 02, which is beneficial to the diversion of the gas at the two sides of the liquid inlet pipe 06.
As a preferred embodiment of the present application, a preset distance is provided between the exhaust pipe 07 and the other end of the adjacent rib structure 02, and the carbon dioxide generated in the whole oxygenation process can be temporarily stored by the preset distance between the exhaust pipe 07 and the other end of the adjacent rib structure 02, so as to avoid too much gas at the inlet of the exhaust pipe 07 to be discharged in time.
As a preferred embodiment of the present application, the liquid inlet pipe 06 and the air outlet pipe 07 are parallel to each other and are disposed on the same side, so as to facilitate the diversion of the carbon dioxide generated by the oxygenator to the air outlet 05.
Preferably, the liquid inlet pipe 06 is disposed radially along the lower cover body 01, and the liquid inlet pipe 06 and the exhaust pipe 07 are disposed on a horizontal plane where the lower cover body 01 is located.
In a third aspect, embodiments of the present application provide an oxygenator comprising the oxygenator lower cover structure of the first aspect.
Compared with the prior art, the device provided by the second aspect has the same advantages as those of the first aspect, and is not described herein.
While the invention has been described in detail in terms of its general description and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.

Claims (18)

1. The upper cover structure of the oxygenator is characterized by comprising an upper cover body, a blood inlet pipe, a liquid discharge pipe and an air inlet pipe;
the upper cover body is provided with a first chamber, and a first isolating ring, a second isolating ring and a third isolating ring are arranged in the first chamber;
the blood inlet tube sequentially penetrates through the first isolating ring, the second isolating ring and the third isolating ring from outside to inside, and the blood inlet tube is communicated with a space surrounded by the third isolating ring;
the liquid discharge pipe is communicated with a channel between the second isolating ring and the third isolating ring, and the air inlet pipe is communicated with a channel between the first isolating ring and the second isolating ring;
the first distance between the first isolation ring and the second isolation ring is larger than the second distance between the first isolation ring and the second isolation ring in the first direction, the first direction is the extending direction of the liquid discharge pipe from inside to outside, and the first direction is opposite to the second direction.
2. The oxygenator cover structure as recited in claim 1, wherein a third distance between said first spacer ring and said second spacer ring in a third direction is the same as a fourth distance between said first spacer ring and said second spacer ring in a fourth direction;
the third direction is perpendicular to the first direction, and the third direction is opposite to the fourth direction.
3. The oxygenator cover structure as recited in claim 1, wherein said second spacer ring and said third spacer ring are disposed concentrically.
4. The oxygenator cover structure as recited in claim 1, wherein the first spacer ring has a height less than the heights of the side walls of the second spacer ring, the third spacer ring and the cover body.
5. The oxygenator cover structure as claimed in claim 1, wherein said first spacer collar defines a space having a cross-sectional area that is between 30% and 40% of the cross-sectional area of the overall cover structure.
6. The oxygenator cover structure as claimed in claim 1, wherein said inlet tube is disposed perpendicularly to said drain tube and said inlet tube, respectively, said drain tube and said inlet tube being disposed parallel to each other and on the same side, said inlet tube, drain tube and inlet tube being disposed on a horizontal plane in which said cover body is disposed.
7. An oxygenator as claimed in claim 1, wherein said drain is disposed between said inlet conduit and said inlet conduit.
8. An oxygenator housing comprising a lower cover structure, a housing body and an oxygenator upper cover structure as claimed in any one of claims 1 to 7;
the upper cover body is arranged at the upper end of the shell body, and the lower cover structure is arranged at the lower end of the cover body;
one side of the lower end of the shell body is provided with a blood drainage tube;
the lower cover structure includes: the liquid inlet pipe, the exhaust pipe and the exhaust port are arranged on the lower cover body and are positioned on the same horizontal plane;
the liquid discharge pipe and the liquid inlet pipe are parallel to each other and are positioned in the same direction, and the air inlet pipe and the air outlet pipe are parallel to each other and are positioned in the same direction; the blood inlet pipe is respectively perpendicular to the liquid discharge pipe and the air inlet pipe, and the liquid discharge pipe and the air inlet pipe are mutually parallel and are positioned on the same side.
9. The oxygenator housing as recited in claim 8, wherein said lower cover body defines a second chamber having a fourth spacer ring, a fifth spacer ring and a plurality of rib structures disposed therein;
the fifth isolating ring is arranged at the periphery of the fourth isolating ring at intervals, and the plurality of rib structures are arranged at the periphery of the fifth isolating ring at intervals;
the exhaust pipe is arranged on the side wall of the lower cover body, and is communicated with the channel between the side wall of the lower cover body and the fifth isolating ring;
the liquid inlet pipe and the exhaust pipe are arranged in parallel and on the same side, and the exhaust port is arranged in the middle area of the liquid inlet pipe and the exhaust pipe.
10. The oxygenator lower cover structure as claimed in claim 9, wherein the diameter of the lower cover body where the exhaust port is located is perpendicular to the intake pipe and the exhaust pipe, respectively.
11. The lower cover structure of an oxygenator according to claim 9, wherein a vertical distance between a straight line of the exhaust port and the liquid inlet pipe is greater than a vertical distance between a straight line of the exhaust port and the exhaust pipe, and the straight line of the exhaust port, the liquid inlet pipe and the exhaust pipe are parallel to each other.
12. The oxygenator housing as recited in claim 9, wherein a plurality of said rib structures are disposed vertically in said chamber, wherein a plurality of said rib structures are of the same height, and wherein a plurality of said rib structures are each lower than a side wall height of said lower cover body and a fifth spacer height.
13. An oxygenator housing as claimed in claim 9, wherein adjacent ones of said rib structures are not interconnected end to end and are spaced apart.
14. The oxygenator housing as recited in claim 9, wherein one end of each of said rib structures is connected to a side wall of said lower cap body, and wherein the other end of each of said rib structures is spaced a predetermined distance from said side wall of said lower cap body.
15. An oxygenator housing as recited in claim 9, wherein said blood drainage tube is symmetrically disposed on both sides thereof with a rib structure.
16. An oxygenator housing as claimed in claim 9, wherein said exhaust tube is spaced a predetermined distance from the other end of the rib structure adjacent thereto.
17. An oxygenator housing as claimed in claim 16, wherein said drainage tube is disposed radially along said lower cap body, said drainage tube and said exhaust tube being disposed at a level of the lower cap body.
18. An oxygenator comprising an oxygenator housing as claimed in any one of claims 8 to 17.
CN202310161579.9A 2023-02-14 2023-02-14 Oxygenator upper cover structure, oxygenator shell and oxygenator Pending CN116212139A (en)

Priority Applications (3)

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CN202310161579.9A CN116212139A (en) 2023-02-14 2023-02-14 Oxygenator upper cover structure, oxygenator shell and oxygenator
CN202310916739.6A CN116850360A (en) 2023-02-14 2023-07-24 Oxygenator upper cover structure, oxygenator shell and oxygenator
CN202310919276.9A CN116850361A (en) 2023-02-14 2023-07-24 Oxygenator lower cover structure, oxygenator shell and oxygenator

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CN202310161579.9A CN116212139A (en) 2023-02-14 2023-02-14 Oxygenator upper cover structure, oxygenator shell and oxygenator

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CN116212139A true CN116212139A (en) 2023-06-06

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