CN213964605U - External left ventricle auxiliary device - Google Patents
External left ventricle auxiliary device Download PDFInfo
- Publication number
- CN213964605U CN213964605U CN202022672741.8U CN202022672741U CN213964605U CN 213964605 U CN213964605 U CN 213964605U CN 202022672741 U CN202022672741 U CN 202022672741U CN 213964605 U CN213964605 U CN 213964605U
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- CN
- China
- Prior art keywords
- blood
- bag
- conveying pipe
- power chamber
- extracorporeal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000005240 left ventricle Anatomy 0.000 title claims abstract description 13
- 239000008280 blood Substances 0.000 claims abstract description 116
- 210000004369 blood Anatomy 0.000 claims abstract description 116
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 230000017531 blood circulation Effects 0.000 claims abstract description 20
- 230000008602 contraction Effects 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000002861 ventricular Effects 0.000 claims 8
- 210000000709 aorta Anatomy 0.000 abstract description 12
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 230000002040 relaxant effect Effects 0.000 abstract description 5
- 210000001105 femoral artery Anatomy 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 230000003205 diastolic effect Effects 0.000 description 6
- 238000000338 in vitro Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000002618 extracorporeal membrane oxygenation Methods 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 3
- 239000012567 medical material Substances 0.000 description 3
- 238000006213 oxygenation reaction Methods 0.000 description 3
- 210000001765 aortic valve Anatomy 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 206010009192 Circulatory collapse Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000823 artificial membrane Substances 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000005246 left atrium Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 206010040560 shock Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
The utility model provides an external left ventricle auxiliary device, sacculus counterpulsation pump and blood flow monitor in storing up blood bag, the bag of contracting, driver's cabin, aorta, be equipped with in the driver's cabin the bag of contracting, the one end of the bag of contracting is equipped with stores up the blood bag, the other end of the bag of contracting is equipped with the blood flow monitor, store up the blood bag the bag of contracting with the blood flow monitor passes through the blood transmission pipe and connects, sacculus counterpulsation pump in the aorta with the driver's cabin links to each other through the gas transmission pipe. The utility model discloses use sacculus counterpulsation pump in the aorta through aerifing in to the driving chamber and the bag compression and the diastole of deflating drive, guarantee that driving chamber or the bag compression and the frequency of the diastole of relaxing and patient's heart is unanimous that contracts, use blood flow monitor monitoring and control business turn over femoral artery blood flow and velocity of flow simultaneously to reduce the load behind the heart.
Description
Technical Field
The utility model belongs to the technical field of the medical equipment technique and specifically relates to an external left ventricle auxiliary device is related to.
Background
In vitro membrane oxygenation (ECMO), also known as in vitro life support, is an effective in vitro cardiopulmonary mechanical assistance technology, which drains a part of venous blood from the body to the outside of the body, and pumps oxygenated blood into the body by a drive pump after oxygenation by the membrane lung, can provide biventricular combined respiratory function assistance at the same time, and plays an important role in treatment of circulatory failure and/or respiratory failure which are ineffective in conventional treatment due to various reasons.
Although venous-arterial (VA-ECMO) mode has circulatory support that can reduce cardiac preload, it increases cardiac afterload; this is undesirable for patients with severe cardiac insufficiency and can even lead to secondary injury during treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an in vitro left ventricle auxiliary device which can solve the problem that the traditional VA-ECMO mode can increase the afterload of the heart;
the utility model provides an external left ventricle auxiliary device, sacculus counterpulsation pump and blood flow monitor in storing up blood bag, the bag of contracting, engine room, aorta, be equipped with in the engine room the bag of contracting, the one end of the bag of contracting is equipped with stores up the blood bag, the other end of the bag of contracting is equipped with the blood flow monitor, store up the blood bag the bag of contracting with the blood flow monitor passes through the blood transmission pipe and connects, sacculus counterpulsation pump in the aorta with the engine room passes through the gas transmission pipe and links to each other.
Furthermore, the power chamber is cylindrical, openings for the blood transmission pipes to pass through are formed in the two ends of the power chamber, a gas transmission pipe is arranged on the outer wall of the power chamber, and the intra-aortic balloon counterpulsation pump is connected with the power chamber through the gas transmission pipe.
Furthermore, a silica gel sealing lantern ring is arranged at the opening of the power chamber.
Furthermore, the blood storage bag and the flexible bag are in an ellipsoid shape, and one end of the flexible bag, which is close to the blood storage bag, is provided with a one-way valve for preventing blood from flowing back.
Furthermore, a first blood conveying pipe and a second blood conveying pipe are respectively arranged at two ends of the blood storage bag, a blood input port is arranged at one end of the first blood conveying pipe, and the other end of the first blood conveying pipe is connected with one end of the blood storage bag.
Furthermore, one end of the second blood conveying pipe is connected with one end of the collapsible bag, the other end of the second blood conveying pipe is connected with one end, far away from the first blood conveying pipe, of the blood storage bag, and a third blood conveying pipe is arranged at one end, far away from the second blood conveying pipe, of the collapsible bag.
Furthermore, the blood conveying pipe III penetrates through the blood flow monitor and is provided with a blood output port at one end far away from the contracting bag, and the other end of the blood conveying pipe III is connected with one end, far away from the blood conveying pipe II, of the contracting bag.
Furthermore, the first blood conveying pipe, the second blood conveying pipe, the third blood conveying pipe, the blood storage bag and the flexible bag are made of polyvinyl chloride.
Further, the power chamber and the gas transmission pipe are made of polyethylene.
The technical scheme of the utility model balloon counterpulsation pump is through aerifing in to the driving chamber and the flexible bag compression of gassing drive and diastole, guarantees that driving chamber or the flexible bag compression diastolic frequency of contracting and patient's heart are flexible and contract the frequency unanimously, uses blood flow monitor monitoring and control business turn over femoral artery blood flow and velocity of flow simultaneously to reduce heart afterload.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic isometric view of the present invention;
description of reference numerals:
in the figure: 1-a blood input port, 2-a blood transmission pipe I, 3-a blood storage bag, 4-a blood transmission pipe II, 5-a contraction bag, 6-an intra-aortic balloon counterpulsation pump, 7-a gas transmission pipe, 8-a power chamber, 9-a blood flow monitor, 10-a blood transmission pipe III, 11-a blood output port, 12-a one-way valve and 13-a silica gel sealing lantern ring;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2:
the utility model provides an external left ventricle auxiliary device, including storing up blood bag 3, the bag 5 that contracts of relaxing, power chamber 8, sacculus counterpulsation pump 6 and blood flow monitor 9 in the aorta, be equipped with the bag 5 that contracts of relaxing in the power chamber 8, the bag 5 one end that contracts of relaxing is equipped with stores up blood bag 3, and the other end is equipped with blood flow monitor 9, stores up blood bag 3, the bag 5 that contracts of relaxing and blood flow monitor 9 and passes through the blood transmission pipe and connect, and sacculus counterpulsation pump 6 and power chamber 8 link to each other through gas transmission pipe 7 in the aorta.
The blood storage bag 3 is in an ellipsoid shape, and two ends of the blood storage bag 3 are respectively provided with a first blood transmission tube 2 and a second blood transmission tube 4. One end of the first blood transmission pipe 2, which is far away from the blood storage bag 3, is provided with a blood input port 1, and the other end is connected with one end of the blood storage bag 3. The blood storage bag 3 is equivalent to the left atrium and receives the reinfused blood after the oxygenation of the extracorporeal membrane in the V-A mode, and the blood input port 1 is connected with the artificial membrane lung and receives the fresh blood oxygenated by the membrane lung.
The flexible bag 5 is in an ellipsoid shape, one end of the second blood transmission tube 4 is connected with one end of the flexible bag 5, the other end of the second blood transmission tube 4 is connected with one end of the blood storage bag 3 far away from the first blood transmission tube 2, and one end of the flexible bag 5 far away from the second blood transmission tube 4 is provided with a third blood transmission tube 10. The collapsible bladder 5 corresponds to the left ventricle and receives blood from the blood reservoir 3. The third blood transmission pipe 10 penetrates through the blood flow monitor 9 and is provided with a blood output port 11 at one end far away from the second blood transmission pipe 4, and the other end of the third blood transmission pipe 10 is connected with one end of the second blood transmission pipe 4 far away from the collapsible bag 5. The blood outlet 11 is inserted into the femoral artery of the human body to pump blood into the aorta. One end of the collapsible bag 5 close to the blood storage bag 3 is provided with a one-way valve 12 which can prevent the blood in the device from flowing backwards.
The power chamber 8 is in a barrel shape, two ends of the power chamber 8 are provided with openings for the second blood transmission tube 4 and the third blood transmission tube 10 to pass through, the outer wall of the power chamber 8 is provided with a gas transmission tube 7, and the balloon counterpulsation pump 6 in the aorta is connected with the power chamber 8 through the gas transmission tube 7. The systolic bag 5 is placed in the cylindrical power chamber 8, the power chamber 8 is connected with the intra-aortic balloon counterpulsation pump 6, the intra-aortic balloon counterpulsation pump 6 drives the systolic bag 5 to compress and relax by inflating and deflating the power chamber 5, and the compression and relaxation frequency of the power chamber 8 or the diastolic bag 5 is ensured to be consistent with the patient's heart diastolic frequency. Openings at two ends of the power chamber 8 and the second blood conveying pipe 4 and the third blood conveying pipe 10 are sealed through a silica gel sealing lantern ring 13 to ensure good air tightness of the power chamber.
The first blood transmission pipe 2, the second blood transmission pipe 4, the third blood transmission pipe 11, the blood storage bag 3 and the collapsible bag 5 are made of polyvinyl chloride or other medical materials, medical products made of polyvinyl chloride are transparent, so that the flowing condition of blood in a pipeline or a bag body can be observed conveniently, thrombus is not easy to form, and the polyvinyl chloride material is soft, so that repeated diastolic movement of the collapsible bag 5 in the power chamber 8 under the action of the intra-aortic balloon counterpulsation pump 6 can be met.
The power chamber 8 and the gas transmission pipe 7 are made of polyethylene or other medical materials, the medical materials made of polyethylene are transparent, the condition of the internal flexible bag 5 of the power chamber 8 can be observed conveniently, the outer walls of the power chamber 8 and the gas transmission pipe 7 are thick, the air pressure can be withstood, and the service life is prolonged.
When the device is used, after the diastolic aortic valve of the left ventricle of the heart is closed, the balloon counterpulsation pump 6 in the aorta inflates the power chamber 8, and the diastole and systole bag 5 compresses to inject blood into the aorta; after the aortic valve is contracted and the left ventricle is opened, the intra-aortic balloon counterpulsation pump 6 pumps air out of the power chamber 8, the systolic bag 5 relaxes under the negative pressure suction, blood in the blood storage bag 3 flows into the systolic bag 5 through the one-way valve 12, and meanwhile, partial blood in the aorta also flows back into the diastolic bag 5, so that the left ventricle afterload is lightened while the left ventricle normally works.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The external left ventricle auxiliary device is characterized by comprising a blood storage bag, a contraction bag, a power chamber, an intra-aortic balloon counterpulsation pump and a blood flow monitor, wherein the contraction bag is arranged in the power chamber, one end of the contraction bag is provided with the blood storage bag, the other end of the contraction bag is provided with the blood flow monitor, the blood storage bag, the contraction bag and the blood flow monitor are connected through a blood transmission pipe, and the intra-aortic balloon counterpulsation pump and the power chamber are connected through a gas transmission pipe.
2. An extracorporeal left ventricular assist device as claimed in claim 1, wherein: the power chamber is cylindrical, openings for the blood transmission pipes to pass through are formed in the two ends of the power chamber, a gas transmission pipe is arranged on the outer wall of the power chamber, and the intra-aortic balloon counterpulsation pump is connected with the power chamber through the gas transmission pipe.
3. An extracorporeal left ventricular assist device as claimed in claim 2, wherein: two openings of the power chamber are provided with silica gel sealing lantern rings.
4. An extracorporeal left ventricular assist device as claimed in claim 1, wherein: the blood storage bag and the flexible bag are in an ellipsoid shape, and one end of the flexible bag, which is close to the blood storage bag, is provided with a one-way valve for preventing blood from flowing back.
5. An extracorporeal left ventricular assist device as claimed in claim 4, wherein: and a first blood conveying pipe and a second blood conveying pipe are respectively arranged at two ends of the blood storage bag, a blood input port is arranged at one end of the first blood conveying pipe, and the other end of the first blood conveying pipe is connected with one end of the blood storage bag.
6. An extracorporeal left ventricular assist device as claimed in claim 5, wherein: one end of the second blood conveying pipe is connected with one end of the collapsible bag, the other end of the second blood conveying pipe is connected with one end, far away from the first blood conveying pipe, of the blood storage bag, and a third blood conveying pipe is arranged at one end, far away from the second blood conveying pipe, of the collapsible bag.
7. An extracorporeal left ventricular assist device as claimed in claim 6, wherein: and the blood transmission pipe III penetrates through the blood flow monitor and is provided with a blood output port at one end far away from the contracting bag, and the other end of the blood transmission pipe III is connected with one end of the contracting bag far away from the blood transmission pipe II.
8. An extracorporeal left ventricular assist device as claimed in claim 6, wherein: the first blood conveying pipe, the second blood conveying pipe, the third blood conveying pipe, the blood storage bag and the flexible bag are made of polyvinyl chloride.
9. An extracorporeal left ventricular assist device as claimed in claim 2, wherein: the power chamber and the gas delivery tube are made of polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672741.8U CN213964605U (en) | 2020-11-18 | 2020-11-18 | External left ventricle auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022672741.8U CN213964605U (en) | 2020-11-18 | 2020-11-18 | External left ventricle auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213964605U true CN213964605U (en) | 2021-08-17 |
Family
ID=77263834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022672741.8U Expired - Fee Related CN213964605U (en) | 2020-11-18 | 2020-11-18 | External left ventricle auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213964605U (en) |
-
2020
- 2020-11-18 CN CN202022672741.8U patent/CN213964605U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |