CN218552794U

CN218552794U - ECMO membrane lung with blood heating function

Info

Publication number: CN218552794U
Application number: CN202221585581.6U
Authority: CN
Inventors: 熊开春; 张晓民; 单荣; 孙建国; 王鸿庆
Original assignee: Weishengkang Medical Technology Jiangsu Co ltd
Current assignee: Weishengkang Medical Technology Jiangsu Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-03-03
Anticipated expiration: 2032-06-23

Abstract

The application relates to an ECMO membrane lung with a blood heating function, which relates to the technical field of medical equipment and comprises a membrane lung body and a centrifugal pump body, wherein the centrifugal pump body is arranged on the membrane lung body, a cavity is formed in the membrane lung body, and oxygen and a membrane are arranged in the cavity; a blood inlet and a centrifugal outlet are formed on the centrifugal pump body, the centrifugal outlet is communicated with the cavity, a blood outlet is formed on the membrane lung body, and the blood inlet is communicated with the cavity; an air inlet is formed on the membrane lung body, an air outlet is formed on the centrifugal pump body, and the air inlet and the air outlet are both communicated with the cavity; the membrane lung body is provided with a heating assembly, and the heating assembly heats blood. This application has the area occupied that reduces heating element to promote the degree of freedom of membrane lung body design, do benefit to the effect of popularization and use.

Description

ECMO membrane lung with blood heating function

Technical Field

The application relates to the technical field of medical equipment, in particular to an ECMO membrane lung with a blood heating function.

Background

Currently, in the existing medical equipment, the breathing machine is mainly used for respiratory rescue and respiratory therapy, and is used for assisting ventilation and supporting respiration for adults, children and infants. The ECMO can lead the blood in the human vena cava blood vessel out of the body to be oxygenated and then returns to the aorta or the vena cava blood vessel so as to partially or completely replace the cardiopulmonary function of a patient, and is equivalent to an 'artificial lung' or an 'artificial heart' outside the body of the patient. Because ECMO plays the effect of artificial lung and artificial heart respectively, it can carry out long-time cardiopulmonary support to severe cardiopulmonary failure patient, wins valuable time for the rescue of critically ill.

Among the correlation technique, ECMO equipment adopts the constant speed mode at the usual mode of during operation, by artifical regulation pump blood volume and air flow of professional medical personnel, in using, blood is drawn forth from patient's vein, through membrane lung oxygenation, carbon dioxide discharges, blood through gas exchange, get back to patient's artery under the promotion of pump again, in blood purification process, the low temperature blood of avoiding extracorporeal circulation is transfused back to patient and is caused the discomfort in vivo, before transfusing back to patient internally, need heat blood, when heating blood, medical personnel can heat blood through the constant temperature water tank, blood is transfused back to patient internally after the heating of constant temperature water tank.

In view of the above-mentioned related technologies, the inventor thinks that the structure of the constant temperature water tank is complex and occupies a large area, thereby resulting in a reduction in the degree of freedom of membrane lung design, which is not favorable for popularization and use.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the complicated area occupied of structure of constant temperature water tank is big, lead to membrane lung design degree of freedom to reduce, this application provides an ECMO membrane lung with blood heating function.

The application provides an ECMO membrane lung with blood heating function adopts following technical scheme:

an ECMO membrane lung with a blood heating function comprises a membrane lung body and a centrifugal pump body, wherein the centrifugal pump body is arranged on the membrane lung body, a cavity is formed in the membrane lung body, and oxygen and a membrane are arranged in the cavity; a blood inlet and a centrifugal outlet are formed on the centrifugal pump body, the centrifugal outlet is communicated with the cavity, a blood outlet is formed on the membrane lung body, and the blood inlet is communicated with the cavity; an air inlet is formed on the membrane lung body, an air outlet is formed on the centrifugal pump body, and the air inlet and the air outlet are both communicated with the cavity; the membrane lung body is provided with a heating assembly, and the heating assembly heats blood.

Optionally, the membrane lung body includes an inner wall and an outer wall, the cavity is located between the inner wall and the outer wall, and a plurality of gas through holes are formed on the oxygen and the membrane at intervals, and the two ends of the gas through holes are respectively communicated with the gas inlet and the gas outlet.

Optionally, the heating assembly comprises a heating wire, and the heating wire is embedded in the inner wall.

Optionally, the heating assembly includes a heating rod, and the heating rod is installed on one side of the inner wall departing from the cavity.

Optionally, the centrifugal pump body includes a first casing and a second casing, the first casing and the second casing are buckled with each other, an impeller is arranged between the first casing and the second casing, the impeller is rotatably installed on the second casing, a driving motor is arranged on the second casing, and an output shaft of the driving motor is connected with the impeller.

Optionally, a heat-conducting adhesive layer is arranged between the heating rod and the inner wall, and two ends of the heat-conducting adhesive layer in the thickness direction are respectively abutted against the heating rod and the inner wall.

Optionally, a connecting plate is arranged between the driving motor and the heating rod, and two ends of the connecting plate are respectively connected with the driving motor and the heating plate.

In summary, the present application includes at least one of the following ECMO membrane lung beneficial effects with blood heating function:

in the application, the blood of patient is followed the blood suction from the blood import to the centrifugal pump body, blood is after the centrifugation of centrifugal pump body, discharge from the centrifugal export of centrifugal pump body, then blood enters into the cavity of membrane lung body, oxygen gets into from the air inlet of membrane lung body simultaneously, blood flows through behind the oxygen and the membrane of membrane lung body, oxygen and blood mix, blood flows out from the blood export of membrane lung body at last, carbon dioxide in the blood flows out from the gas outlet, when blood carries out oxygen and effect in the membrane lung body, heating element heats blood, heat blood through omitting thermostatic water tank, help reducing heating element's area occupied, thereby promote the degree of freedom of membrane lung body design, do benefit to popularization and use.

Drawings

FIG. 1 is a schematic view of an overall structure of a membrane lung body and a centrifugal pump body according to an embodiment;

FIG. 2 is an exploded view of a membrane lung body according to an embodiment;

FIG. 3 is a sectional view of an inner wall structure according to an embodiment;

FIG. 4 is a schematic view of a heating rod according to a second embodiment of the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Reference numerals: 1. a membrane lung body; 11. a cavity; 12. a blood outlet; 13. an air inlet; 14. an air outlet; 15. an inner wall; 16. an outer wall; 2. oxygen and a membrane; 21. a gas through hole; 3. a centrifugal pump body; 31. a first housing; 311. a blood inlet; 32. a second housing; 321. a centrifugal outlet; 33. an impeller; 34. a drive motor; 4. a heating assembly; 41. heating wires; 42. a heating rod; 5. a base; 6. A heat-conducting adhesive layer; 7. a connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of the present application do not denote a limitation of quantity, but rather denote the presence of at least one.

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an ECMO membrane lung with blood heating function.

Example 1

Referring to fig. 1-3, an ECMO membrane lung with blood heating function, including membrane lung body 1 and centrifugal pump body 3, centrifugal pump body 3 is installed on membrane lung body 1, be formed with cavity 11 in the membrane lung body 1, be provided with oxygen and membrane 2 in the cavity 11, and be formed with blood import 311 and centrifugal outlet 321 on the centrifugal pump body 3, centrifugal outlet 321 and cavity 11 intercommunication, and be formed with blood export 12 on membrane lung body 1, blood import 311 cavity 11 intercommunication, during the use, blood gets into from blood import 311 on the centrifugal pump body 3, then flow into in the cavity 11 of membrane lung body 1 from centrifugal outlet 321 of centrifugal pump body 3, blood takes place oxygen and discharges from blood export 12 after the effect in oxygen and membrane 2. An air inlet 13 and an air outlet 14 are formed on the membrane lung body 1, the air inlet 13 and the air outlet 14 are both communicated with the cavity 11, oxygen enters from the air inlet 13 of the membrane lung body 1, and carbon dioxide generated after the oxygen enters the cavity 11 and is mixed with blood is discharged from the air outlet 14. The membrane lung body 1 is provided with a heating component 4, and when blood flows through the cavity 11, the heating component 4 heats the blood. Blood is heated by omitting a constant-temperature water tank, so that the occupied area of the heating assembly 4 is reduced, and the degree of freedom of design of the membrane lung body 1 is improved.

The centrifugal pump body 3 comprises a first shell 31 and a second shell 32, the first shell 31 is buckled on the second shell 32, the second shell 32 is buckled on the membrane lung body 1, an impeller 33 is arranged between the first shell 31 and the second shell 32, the impeller 33 is rotatably erected on the second shell 32, a blood inlet 311 is formed on the first shell 31, and the blood inlet 311 is communicated with the first shell 31 and the second shell 32. The centrifugal outlet 321 is formed on the second casing 32, and one end of the centrifugal outlet 321 is communicated with the first casing 31 and the second casing 32, and the other end is communicated with the membrane lung body 1. The second casing 32 is provided with a driving motor 34, the driving motor 34 is installed on the second casing 32, an output shaft of the driving motor 34 extends between the first casing 31 and the second casing 32, the impeller 33 is connected and matched with one end of an output shaft of the driving motor 34, when the membrane lung body 1 is used, blood enters from a blood inlet 311 on the first casing 31, and then enters from a centrifugal outlet 321 on the second casing 32 under the driving of the impeller 33.

The membrane lung body 1 comprises an inner wall 15 and an outer wall 16, the inner wall 15 and the outer wall 16 are both cylindrical integrally, the inner wall 15 is sleeved in the outer wall 16, the cavity 11 is formed on one side of the inner wall 15 and the outer wall 16, which are close to each other, and when the membrane lung body is used, blood enters the cavity 11 from the centrifugal outlet 321 on the second shell 32 under the driving of the impeller 33.

The oxygen and the membrane 2 are integrally cylindrical, the oxygen and the membrane 2 are embedded in the cavity 11, and the inner side wall and the outer side wall of the oxygen and the membrane 2 respectively abut against the inner wall 15 and the outer wall 16. The oxygen and membrane 2 is provided with a plurality of gas through holes 21, the axes of the gas through holes 21 and the axes of the oxygen and membrane 2 are arranged in parallel at intervals, and the gas through holes 21 are evenly arranged on the oxygen and membrane 2 at intervals. The blood outlet 12 is formed on the side of the outer wall 16 opposite to the centrifugal outlet 321, and the blood enters the chamber 11 from the centrifugal outlet 321 on the second housing 32 under the driving of the impeller 33, then flows through the gap between the oxygen and the membrane 2 in the horizontal direction, and finally flows out from the blood outlet 12 on the outer wall 16.

The membrane lung body 1 comprises a base 5, the base 5 is positioned on one side of the membrane lung body 1, which is far away from the second shell 32 in the vertical direction, the inner wall 15 and the outer wall 16 are both installed on the base 5, the air inlet 13 is formed on the base 5, the air outlet 14 is formed on the second shell 32, the air inlet 13 and the air outlet 14 are both communicated with the cavity 11, the air enters from the air inlet 13 on the base 5, flows through the air through holes 21 on the oxygen and the membrane 2, and finally is discharged from the air outlet 14 on the second shell 32. In use, oxygen flows in from the air inlet 13 on the base 5, then the oxygen passes through the plurality of air through holes 21 on the oxygen and membrane 2, and blood flows in from the gap in the horizontal direction of the oxygen and membrane 2, and performs oxygen combination action with the oxygen in the air through holes 21, after the oxygen combination action is completed, the blood flows out from the blood outlet 12 on the outer wall 16, and carbon dioxide generated by the oxygen combination reaction is discharged from the air outlet 14 on the second shell 32.

The heating assembly 4 comprises a heating wire 41, the heating wire 41 is embedded in the inner wall 15, the heating wire 41 is integrally wound in the inner wall 15 in a spiral surrounding manner, and the heating wire 41 is a metal wire. The heating wire 41 is combined with the inner wall 15 in a buried manner, so that the heat transfer efficiency of the heating wire 41 can be improved, and when the blood heating device is used, the heating wire 41 is electrified to heat the inner wall 15, so that blood in the cavity 11 is uniformly heated, and the purpose of heating the blood is achieved. In order to improve the efficiency of blood heating, the inner wall 15 and the outer wall 16 are made of metal, so that the heat of the heating wire 41 can be well conducted to the blood, and the efficiency of blood heating can be improved.

The implementation principle of the embodiment 1 is as follows: in operation, blood enters from the blood inlet 311 of the first housing 31, then the driving motor 34 drives the impeller 33 to rotate, the blood enters the cavity 11 of the membrane lung body 1 from the centrifugal outlet 321 on the second housing 32 under the driving of the impeller 33, then oxygen flows in from the air inlet 13 on the base 5, the oxygen flows through the plurality of air through holes 21 on the oxygen and membrane 2, and simultaneously the blood flows in from the gap in the horizontal direction of the oxygen and membrane 2 to perform oxygen and action with the oxygen in the air through holes 21, after the oxygen and action is completed, the blood flows out from the blood outlet 12 on the outer wall 16, carbon dioxide generated by the oxygen and reaction is discharged from the air outlet 14 on the second housing 32, when the blood performs the oxygen and action, the heating wire 41 is electrified to heat the inner wall 15, and the inner wall 15 transfers the heat of the heating wire 41 to the blood, so as to complete the heating of the blood.

Example 2

Referring to fig. 4 to 5, the embodiment is different from embodiment 1 in that the heating assembly 4 includes a heating rod 42, the heating rod 42 is integrally cylindrical, and the heating rod is embedded inside the inner wall 15, so that heat on the heating rod 42 can be transferred to the inner wall 15 by heating the heating rod 42, and then the heat is transferred to blood through the inner wall 15, in the using process, a gap exists between the heating rod 42 and the inner wall 15, after improvement of a designer, the heat conductive adhesive layer 6 is arranged between the heating rod 42 and the inner wall 15, and the heat conductive adhesive layer 6 is attached between the heating rod 42 and the inner wall 15, and when in use, the gap between the heating rod 42 and the inner wall 15 is filled with the heat conductive adhesive layer 6, so as to better transfer the heat of the heating rod 42.

Be provided with connecting plate 7 between heating rod 42 and the driving motor 34, the one end and the driving motor 34 of connecting plate 7 are connected, and the other end is connected with heating rod 42, through connecting driving motor 34 on heating rod 42 for the convenience of driving motor 34 and the dismantlement of heating rod 42 can be promoted.

The implementation principle of the embodiment 2 is as follows: before use, the driving motor 34 and the heating rod 42 are installed, then the heating rod 42 is heated, the heat of the heating rod 42 is transmitted to the inner wall 15 through the heat conducting glue layer 6, and the inner wall 15 transmits the heat of the heating rod 42 to blood, so that the blood is heated.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an ECMO membrane lung with blood heating function, includes membrane lung body (1) and centrifugal pump body (3), its characterized in that: the centrifugal pump body (3) is arranged on the membrane lung body (1), a cavity (11) is formed in the membrane lung body (1), and oxygen and the membrane (2) are arranged in the cavity (11); a blood inlet (311) and a centrifugal outlet (321) are formed in the centrifugal pump body (3), the centrifugal outlet (321) is communicated with the cavity (11), a blood outlet (12) is formed in the diaphragm lung body (1), and the blood inlet (311) is communicated with the cavity (11); an air inlet (13) is formed in the membrane lung body (1), an air outlet (14) is formed in the centrifugal pump body (3), and the air inlet (13) and the air outlet (14) are both communicated with the cavity (11); the membrane lung body (1) is provided with a heating assembly (4), and the heating assembly (4) heats blood.

2. The ECMO membrane lung with blood heating function according to claim 1, wherein: membrane lung body (1) includes inner wall (15) and outer wall (16), cavity (11) are located between inner wall (15) and outer wall (16), just be formed with gas through hole (21) on oxygen and membrane (2), gas through hole (21) are in oxygen and membrane (2) go up the interval and are formed with a plurality of, and a plurality of the both ends of gas through hole (21) respectively with air inlet (13) and gas outlet (14) intercommunication.

3. The ECMO membrane lung with blood heating function according to claim 2, wherein: the heating assembly (4) comprises a heating wire (41), and the heating wire (41) is buried in the inner wall (15).

4. The ECMO membrane lung with blood heating function according to claim 2, wherein: heating element (4) include heating rod (42), the heating rod is installed inner wall (15) deviates from one side of cavity (11).

5. The ECMO membrane lung with blood heating function according to claim 4, wherein: the centrifugal pump comprises a centrifugal pump body (3) and is characterized in that the centrifugal pump body (3) comprises a first shell (31) and a second shell (32), the first shell (31) and the second shell (32) are buckled with each other, an impeller (33) is arranged between the first shell (31) and the second shell (32), the impeller (33) is rotatably installed on the second shell (32), a driving motor (34) is arranged on the second shell (32), and an output shaft of the driving motor (34) is connected with the impeller (33).

6. The ECMO membrane lung with blood heating function according to claim 4, wherein: heating rod (42) with be provided with heat-conducting adhesive layer (6) between inner wall (15), the both ends of heat-conducting adhesive layer (6) thickness direction respectively with heating rod (42) and inner wall (15) are contradicted.

7. The ECMO membrane lung with blood heating function according to claim 5, wherein: the heating device is characterized in that a connecting plate (7) is arranged between the driving motor (34) and the heating rod (42), and two ends of the connecting plate (7) are connected with the driving motor (34) and the heating plate respectively.