CN214911413U - Multilayer bellows type artificial lung device - Google Patents
Multilayer bellows type artificial lung device Download PDFInfo
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- CN214911413U CN214911413U CN202120756212.8U CN202120756212U CN214911413U CN 214911413 U CN214911413 U CN 214911413U CN 202120756212 U CN202120756212 U CN 202120756212U CN 214911413 U CN214911413 U CN 214911413U
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Abstract
The utility model relates to a multilayer film box type artificial lung device, which comprises an artificial lung outer frame, an artificial lung outer wall frame and an encapsulated artificial lung inner core component. The oxygen inlet pipe and the carbon dioxide outlet pipe are respectively arranged at two sides of the outer frame of the artificial lung. The outer wall frame of the artificial lung is provided with an oxygen inlet and outlet channel, a blood inlet and outlet channel and an oxygenation space in the outer frame box, and the oxygen inlet and outlet channel is communicated with an oxygen inlet pipe and a carbon dioxide outlet pipe. The artificial lung kernel component is provided with two rows of connected circular disk-shaped membrane boxes, the top ends of the two rows of membrane boxes are connected with a blood inlet pipe and a blood outlet pipe, each row of membrane boxes are provided with a plurality of superposed kernel membranes, the kernel membranes are provided with a plurality of kernel membrane branch pipe channel grooves which are radial from the centers of the membranes to the edges of the disks to form channels for fixing and pumping blood, and meanwhile, the hydrophobic multi-layer membrane boxes fully distributed with micropores are used as interfaces of blood and gas for blood-gas exchange to achieve the optimal state.
Description
Technical Field
The utility model relates to an artificial lung of life support technology, in particular to a multilayer film box type artificial lung device.
Background
In order to accelerate the high-quality development of medical equipment, continuously improve the supply guarantee capacity of the medical equipment for dealing with sudden public health incidents, better meet the growing medical health and health requirements of people, promote the construction of the strong country and healthy China, and create a new situation for treating severe respiratory diseases along with the development of high and new materials, the deepening of basic research and the accumulation of clinical experience.
Currently, through improvements in membrane materials, optimization design, and experimental assessment and clinical evaluation of various properties, artificial lung research is focused on improving gas exchange capacity and biocompatibility, providing a more reliable means for rescuing a patient's life. The artificial lung is a life support technology, and can be used when the lung function of the human body fails to maintain sufficient oxygen supply of human organs, or can be permanently implanted into the human body to partially or completely replace the lung function of the human body in the long-term development.
The artificial lung in the market at present can be developed from the original vertical-screen type, rotary-disk type and bubbling type artificial lung products to the microporous hollow fiber membrane type artificial lung products widely adopted nowadays according to the structural form, but the artificial lung products in the structural forms have the following defects:
1. The two artificial lungs are limited in oxygenation performance, firstly pre-filled with oxygen, large in pre-filling amount, complex in operation process and low in safety performance, and are eliminated.
2. The bubbling artificial lung is characterized in that oxygen is directly introduced into blood for gas exchange, so that the blood is damaged to a certain extent, and qi and blood are easy to directly contact to cause diseases such as air embolism and the like.
3. A microporous hollow fiber membrane type artificial lung is a membrane made of hollow fibers by bundling, the module is divided into an inner cavity and an outer cavity, the two cavities can exchange materials through the hollow membrane wall, and can simulate certain functions of a microvascular, but because the membrane material and the micropores have different sizes, the surfaces of the hollow fibers are coated with coating layers, the relative molecular mass of interception is different, and the oxygenation quality is limited.
The artificial lung product is limited by the structural form and the selected materials, and the first two types of oxygenators obviously cannot meet the requirements of clinical use; the microporous hollow fiber membrane type artificial lung is a membrane made of hollow fiber bundles, so that the area of the hollow fiber membrane is influenced, the exchange capacity of the artificial lung oxygenator for oxygen is limited, and the phenomena of membrane pore blockage caused by plasma, easy deposition of blood components and the like easily occur; in addition, the current clinically used membrane materials are all made of foreign brands, once the foreign brands are supplied with the membrane materials, the foreign brands cannot be assembled and clinically applied at home, and the resulting defects can endanger the life of patients.
In view of this, the development of a novel artificial lung oxygenator which can be widely applied to the rescue treatment of respiratory failure and has in vitro life support becomes a new target sought by researchers in the field.
Disclosure of Invention
The utility model aims at providing a multilayer bellows type artificial lung device, adopt to sinter to have the super high molecular material who link up the structure entirely, encapsulate in transparent frame through with the dual-core rete, utilize hydrophobicity and the microporous multilayer bellows of full cloth to carry out the blood gas exchange as blood and gaseous interface, do benefit to oxygen and carry the kernel from the skin, make artificial lung reach the optimum state in the aspect of gas exchange volume and blood compatibility, thereby prolong artificial lung's life, reduce the trouble of changing artificial lung in the operation, reduce the treatment cost who uses artificial lung, the problem that above-mentioned current artificial lung product exists has been solved from this.
The technical solution of the utility model is as follows:
a kind of multi-layer membrane box type artificial lung device, it includes a artificial lung outer gimbal, one is placed inside artificial lung outer gimbal and adopts the artificial lung outer wall frame made of ultra-high molecular material that is sintered into and has all-through structure, and one is packed in the artificial lung inner core assembly in the outer wall frame of artificial lung;
The artificial lung outer frame is provided with an outer frame mounting support, an oxygen inlet pipe, a carbon dioxide outlet pipe and an oxygenation index sensor interface, the outer frame mounting support is mounted on two sides of the artificial lung outer frame, the oxygen inlet pipe and the carbon dioxide outlet pipe are respectively mounted on the other two sides of the artificial lung outer frame, and the oxygenation index sensor interface is arranged on one side of the artificial lung outer frame;
the outer wall frame of the artificial lung is provided with an outer wall frame oxygen inlet and outlet channel, an outer wall frame blood inlet and outlet channel and an oxygenation space in the outer frame box, and the outer wall frame oxygen inlet and outlet channel is communicated with an oxygen inlet pipe and a carbon dioxide outlet pipe which are arranged on the outer frame of the artificial lung;
the artificial lung kernel assembly is provided with two rows of circular disc-shaped membrane boxes, sector filtering layers are fully distributed in the membrane boxes, the two rows of membrane boxes form a double-core membrane layer, each row of membrane boxes are provided with a plurality of artificial lung kernel membranes which are stacked together, and the top ends and the bottom ends of the two rows of membrane boxes are respectively provided with an artificial lung kernel membrane fastening device; the bottom ends of the two rows of the membrane boxes are connected with each other through connecting pipes, and an artificial lung core membrane U-shaped flow control device is arranged between the connecting pipes at the bottom ends of the two rows of the membrane boxes; the top ends of the two columns of the diaphragm capsules are respectively connected with a blood inlet pipe and a blood outlet pipe, and the blood inlet pipe and the blood outlet pipe respectively penetrate out of the top end of the outer wall frame of the artificial lung;
The artificial lung inner core membrane is provided with a plurality of artificial lung inner core membrane branch pipe channel grooves which are radial from the center of the membrane to the edge of the wafer to form a channel for fixing and pumping blood, meanwhile, the hydrophobic multi-layer membrane box which is fully distributed with micropores is used as an interface of blood and gas for blood-gas exchange, and the dual-core membrane layer is beneficial to conveying oxygen to the blood flowing in the inner core from the outer layer, so that the artificial lung can reach the optimal state in the aspects of gas exchange capacity and blood compatibility.
The outer frame of the artificial lung is a transparent engineering plastic frame.
The utility model discloses a multilayer film box-type artificial lung device adopts the sintering to become to have the super high molecular material who link up the structure entirely, through encapsulating the double-core rete in transparent engineering plastic frame, does benefit to oxygen and carries the kernel from the skin, carries the form of inside flowing blood to the oxygen of outside, makes oxygen combine and carry out the exchange of oxygen and carbon dioxide with the hemoglobin of molecular state infiltration in through kernel and blood, makes artificial lung reach the optimum condition in the aspect of gas exchange volume and blood compatibility.
The multi-layer membrane box type artificial lung device changes the oxygenation mode of blood, utilizes the hydrophobic property and the multi-layer membrane box fully distributed with micropores as the interface of blood and gas to carry out blood-gas exchange, the blood and the gas are not in direct contact, therefore, the blood damage is small, the air embolism is not easy to generate, the use is safer, the device has the advantages of low impedance, high gas exchange capacity and the like, thus, the external oxygen is transmitted to the form of the blood flowing in the inner membrane box through the cuboid structure at the outer layer, so that the oxygen permeates through the inner core in a molecular state to be combined with the hemoglobin in the blood and exchange the oxygen and the carbon dioxide, the artificial lung is promoted to achieve the optimal state in the aspects of gas exchange quantity and blood compatibility, thereby prolonging the service life of the artificial lung, reducing the trouble of replacing the artificial lung in the operation, reducing the treatment cost of using the artificial lung, can provide a new option for selecting artificial lung products during cardiopulmonary emergency treatment and cardiopulmonary surgery.
Drawings
Fig. 1 is a schematic diagram of the inner core structure of a multilayer film box type artificial lung device of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic front view of the multi-layer film cassette artificial lung device of the present invention.
Fig. 4 is a schematic top view of the multi-layered bellows-type artificial lung device shown in fig. 3.
Fig. 5 is a schematic side view of the multi-layered bellows-type artificial lung device shown in fig. 3.
Fig. 6 is a schematic structural diagram of an outer wall of a multilayer film box type artificial lung device according to the present invention.
Reference numerals:
1 is an artificial lung outer frame, 12 is a blood inlet pipe, 13 is a blood outlet pipe, 14 is an outer frame mounting bracket, 15 is an oxygen inlet pipe, 16 is a carbon dioxide outlet pipe, and 17 is an oxygenation index sensor interface;
2, an artificial lung outer wall frame, 22, 23, and 24, outer wall frame oxygen inlet and outlet channels, outer wall frame blood inlet and outlet channels, and outer frame box oxygenation space;
3 is an artificial lung core assembly, 32 is an artificial lung core membrane, 33 is an artificial lung core membrane branch pipe channel groove, 34 is an artificial lung core membrane fastening device, and 35 is an artificial lung core membrane U-shaped flow control device.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1 to 6, the present invention provides a multilayer film box type artificial lung device, which mainly comprises an outer frame 1 of an artificial lung, an outer wall frame 2 of an artificial lung and an inner core component 3 of an artificial lung.
As shown in fig. 3 to 5, the artificial lung outer frame 1 is provided with an outer frame mounting bracket 14, an oxygen inlet pipe 15, a carbon dioxide outlet pipe 16 and an oxygenation index sensor interface 17, the outer frame mounting bracket 14 is mounted on two sides of the artificial lung outer frame 1, the oxygen inlet pipe 15 and the carbon dioxide outlet pipe 16 are respectively mounted on the other two sides of the artificial lung outer frame 1, and the oxygenation index sensor interface 17 is arranged on one side of the artificial lung outer frame 1. The oxygenation index sensor interface 17 is connected with an oxygenation index sensor, so that the oxygenation performance of the artificial lung can be observed and mastered conveniently. The outer frame 1 of the artificial lung is a transparent engineering plastic frame, and can be of a cuboid structure.
As shown in fig. 6, the artificial lung outer wall frame 2 is placed inside the artificial lung outer frame 1, and the artificial lung outer wall frame 2 is made of an ultra-high molecular material sintered to have a through structure. The outer wall frame 2 of the artificial lung is provided with an outer wall frame oxygen inlet and outlet channel 22, an outer wall frame blood inlet and outlet channel 23 and an oxygenation space 24 in the outer frame box. The oxygen inlet and outlet channel 22 of the outer wall frame is communicated with an oxygen inlet pipe 15 and a carbon dioxide outlet pipe 16 which are arranged on the outer frame 1 of the artificial lung.
As shown in fig. 1 and 2, the artificial lung inner core component 3 is enclosed in the artificial lung outer wall frame 2. The artificial lung core component 3 is provided with two rows of circular disk-shaped membrane boxes, the inside of each membrane box is fully distributed with a sector filtering layer, and the two rows of membrane boxes form a double-core membrane layer. Each column of bellows is provided with a plurality of artificial lung core diaphragms 32 which are stacked together, and the number of stacked diaphragms can be set as required. The top and bottom ends of the two columns of the membrane boxes are respectively provided with an artificial lung core membrane fastening device 34. The bottom ends of the two columns of the membrane boxes are connected with each other through connecting pipes, and an artificial lung core membrane U-shaped flow control device 35 is arranged between the connecting pipes at the bottom ends of the two columns of the membrane boxes and used for regulating blood flowing through the control pipes. The top ends of the two columns of the bellows are respectively connected with a blood inlet pipe 12 and a blood outlet pipe 13, and the blood inlet pipe 12 and the blood outlet pipe 13 respectively penetrate out from the top end of the artificial lung outer wall frame 2.
Fig. 2 shows the artificial lung core membrane 32 in the membrane box in an enlarged way, the artificial lung core membrane 32 is provided with a plurality of artificial lung core membrane branch pipe channel grooves 33, the groove-shaped structures of the artificial lung core membrane branch pipe channel grooves 33 are radial from the center of the membrane to the edge of the wafer to form channels for fixing and pumping blood, and meanwhile, the hydrophobic multi-layer membrane box full of micropores is used as an interface of blood and gas for blood-gas exchange. The double-core film layer of the artificial lung inner core component 3 is beneficial to conveying oxygen to blood flowing in the inner core from the outer layer, so that the artificial lung is promoted to achieve the optimal state in the aspects of gas exchange amount and blood compatibility.
Adopt the utility model discloses a multilayer film box-type artificial lung device, encapsulate in transparent engineering plastic frame through the double-core rete with artificial lung kernel subassembly 3, do benefit to oxygen and carry the kernel from artificial lung outer wall frame 2 skin, because of artificial lung outer wall frame 2 is by super high molecular material sintering one-tenth complete through structure, the outer wall only allows the air to separate out and not allow blood to ooze through exchanging with carbon dioxide, the artificial lung device can carry inside flowing blood with outside oxygen, make oxygen combine and carry out the exchange of oxygen and carbon dioxide with the hemoglobin of molecular state infiltration in through kernel and blood, make artificial lung reach the optimum condition in the aspect of gas exchange volume and blood compatibility.
The multi-layer membrane box type artificial lung device changes the oxygenation mode of blood, utilizes the hydrophobic property and the multi-layer membrane box fully distributed with micropores as the interface of blood and gas to carry out blood-gas exchange, the blood and the gas are not in direct contact, therefore, the blood damage is small, the air embolism is not easy to generate, the use is safer, the device has the advantages of low impedance, high gas exchange capacity and the like, thus, external oxygen is transmitted to the blood flowing in the inner membrane box through the cuboid structure at the outer layer, so that the oxygen permeates through the inner core in a molecular state to be combined with hemoglobin in the blood and exchange between the oxygen and carbon dioxide is carried out, the artificial lung is promoted to achieve the optimal state in the aspects of gas exchange amount and blood compatibility, thereby prolonging the service life of the artificial lung, reducing the trouble of replacing the artificial lung in the operation, reducing the treatment cost of using the artificial lung, and being capable of selecting a proper artificial lung device for cardiopulmonary emergency treatment and cardiopulmonary operation.
Of course, those skilled in the art should recognize that the above-described embodiments are merely illustrative of the present invention and are not intended to be limiting, and that changes, modifications, etc. to the above-described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (2)
1. A multilayer film cassette artificial lung device characterized by: the artificial lung comprises an artificial lung outer frame (1), an artificial lung outer wall frame (2) which is arranged in the artificial lung outer frame (1) and is made of ultra-high molecular materials which are sintered into a full-through structure, and an artificial lung inner core component (3) which is packaged in the artificial lung outer wall frame (2);
the artificial lung outer frame (1) is provided with an outer frame mounting support (14), an oxygen inlet pipe (15), a carbon dioxide outlet pipe (16) and an oxygenation index sensor interface (17), the outer frame mounting support (14) is mounted on two sides of the artificial lung outer frame (1), the oxygen inlet pipe (15) and the carbon dioxide outlet pipe (16) are respectively mounted on the other two sides of the artificial lung outer frame (1), and the oxygenation index sensor interface (17) is arranged on one side of the artificial lung outer frame (1);
The outer wall frame (2) of the artificial lung is provided with an outer wall frame oxygen inlet and outlet channel (22), an outer wall frame blood inlet and outlet channel (23) and an oxygenation space (24) in the outer frame box, and the outer wall frame oxygen inlet and outlet channel (22) is communicated with an oxygen inlet pipe (15) and a carbon dioxide outlet pipe (16) which are arranged on the outer frame (1) of the artificial lung;
the artificial lung core assembly (3) is provided with two rows of circular disc-shaped membrane boxes, a sector filter layer is fully distributed in each membrane box, the two rows of membrane boxes form a double-core membrane layer, each row of membrane boxes are provided with a plurality of artificial lung core membranes (32) which are stacked together, and the top ends and the bottom ends of the two rows of membrane boxes are respectively provided with an artificial lung core membrane fastening device (34); the bottom ends of the two rows of the membrane boxes are connected with each other through connecting pipes, and an artificial lung core membrane U-shaped flow control device (35) is arranged between the connecting pipes at the bottom ends of the two rows of the membrane boxes; the top ends of the two columns of the membrane boxes are respectively connected with a blood inlet pipe (12) and a blood outlet pipe (13), and the blood inlet pipe (12) and the blood outlet pipe (13) respectively penetrate out from the top end of the outer wall frame (2) of the artificial lung;
the artificial lung inner core diaphragm (32) is provided with a plurality of artificial lung inner core diaphragm branch pipe channel grooves (33) which are radial from the center of the diaphragm to the edge of the wafer to form a channel for fixing and pumping blood, meanwhile, the hydrophobic multi-layer diaphragm box which is fully distributed with micropores is used as an interface of blood and gas for blood-gas exchange, and the dual-core diaphragm layer is beneficial to conveying oxygen to the blood flowing in the inner core from the outer layer, so that the artificial lung is promoted to achieve the optimal state in the aspects of gas exchange capacity and blood compatibility.
2. The multilayer film cartridge artificial lung device according to claim 1, characterized in that: the artificial outer lung frame (1) is a transparent engineering plastic frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120756212.8U CN214911413U (en) | 2021-04-15 | 2021-04-15 | Multilayer bellows type artificial lung device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120756212.8U CN214911413U (en) | 2021-04-15 | 2021-04-15 | Multilayer bellows type artificial lung device |
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| CN214911413U true CN214911413U (en) | 2021-11-30 |
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| CN202120756212.8U Active CN214911413U (en) | 2021-04-15 | 2021-04-15 | Multilayer bellows type artificial lung device |
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- 2021-04-15 CN CN202120756212.8U patent/CN214911413U/en active Active
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