CN212395606U - Volumetric blood pump capable of replacing human heart - Google Patents
Volumetric blood pump capable of replacing human heart Download PDFInfo
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- CN212395606U CN212395606U CN202020923085.1U CN202020923085U CN212395606U CN 212395606 U CN212395606 U CN 212395606U CN 202020923085 U CN202020923085 U CN 202020923085U CN 212395606 U CN212395606 U CN 212395606U
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Abstract
The utility model provides a human heart's of fungible positive displacement blood pump, including control coil and the rigid body that has inlayer cavity and outer cavity, control coil sets up in the outer cavity, be provided with the elasticity bell-shaped body of two relative settings in the inlayer cavity, the inside of elasticity bell-shaped body is the cavity structure, is provided with the permanent magnet between two elasticity bell-shaped bodies, the positive and negative two surfaces of permanent magnet respectively with two the most advanced fixed connection of elasticity bell-shaped body, the afterbody of two elasticity bell-shaped bodies all are provided with inlet and the liquid outlet that is linked together rather than inside cavity structure, and inlet and liquid outlet department all are provided with the valve. The positive displacement blood pump of the utility model has the functions of a left ventricle and a right ventricle, and can completely replace the heart of a human body; the perfusion can be carried out on the whole body organ, particularly the end organ, so as to avoid various complications caused by the fact that the constant-flow mechanical pump cannot perfuse the end organ; and a magnetic suspension control mode is adopted, so that the device is more stable and reliable.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially, relate to a volumetric blood pump of human heart of fungible.
Background
At present, about 400 tens of thousands of heart failure patients exist in 35-74 years old adults in China, and for the end-stage heart failure patients, the clinical effect of heart transplantation is obviously superior to that of the heart failure controlled by a single medicament. However, the heart donor is seriously deficient and faces the problems of rejection, infection and other secondary diseases, and the development of an artificial heart pump provides a new way for treating severe heart failure.
Artificial heart pumps can be divided into left/right heart assist heart pumps and total artificial heart pumps. The former is for the case of failure of a single ventricle, while the latter is for patients with severe heart failure to the point where both ventricles are unable to function. A fully artificial heart can help a patient maintain life while waiting for a heart transplant, and can maintain patient life for a long time when both ventricles of the patient are severely failing but still not being able to receive a heart transplant.
Compared with the existing continuous flow blood pump, the constant flow mechanical pump can not perfuse the end organs of the human body, and various complications can be caused after long-term use. The positive displacement blood pump can avoid the damage of long-time high-speed mechanical friction to blood cells, and the damage can cause hemolysis and other blood complications and cause various postoperative risks to implanted patients.
Disclosure of Invention
In view of this, the present invention provides a positive displacement blood pump capable of replacing human heart, which has the functions of left and right ventricles, and the magnetic suspension control mode is more stable and reliable.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the positive displacement blood pump capable of replacing the human heart comprises a control coil and a rigid body with an inner cavity and an outer cavity, wherein the control coil is arranged in the outer cavity, two elastic bell-shaped bodies which are oppositely arranged are arranged in the inner cavity, the inner part of each elastic bell-shaped body is of a cavity structure, a permanent magnet is arranged between the two elastic bell-shaped bodies, the front surface and the back surface of each permanent magnet are fixedly connected with the tips of the two elastic bell-shaped bodies respectively, the tail parts of the two elastic bell-shaped bodies are provided with a liquid inlet and a liquid outlet which are communicated with the cavity structure in the elastic bell-shaped bodies, and valves are arranged at the liquid inlet and the liquid outlet.
Further, the valves are all one-way valves.
Furthermore, the two elastic bells are divided into a left elastic bell and a right elastic bell, the tail part of the left elastic bell is provided with a left liquid inlet and a left liquid outlet, a valve arranged at the left liquid inlet is a first one-way valve, and a valve arranged at the left liquid outlet is a second one-way valve; the tail part of the right elastic bell-shaped body is provided with a right liquid inlet and a right liquid outlet, the valve arranged at the right liquid inlet is a third one-way valve, and the valve arranged at the right liquid outlet is a fourth one-way valve.
Further, the first one-way valve allows arterial blood from the double lungs to enter the left elastic bell, the second one-way valve allows blood in the left elastic bell to flow out to the whole body, the third one-way valve allows venous blood from the whole body to enter the right elastic bell, and the fourth one-way valve allows blood in the right elastic bell to flow out.
Further, the volume of the elastic bell-shaped body is 50-180 mL.
Further, the control coil is controlled by a wire connected to the outside of the human body or an infinitely chargeable battery.
Compared with the prior art, the volumetric blood pump capable of replacing the human heart has the following advantages:
the positive displacement blood pump of the utility model has the functions of a left ventricle and a right ventricle, and can completely replace the heart of a human body; the perfusion can be carried out on the whole body organ, particularly the end organ, so as to avoid various complications caused by the fact that the constant-flow mechanical pump cannot perfuse the end organ; and a magnetic suspension control mode is adopted, so that the device is more stable and reliable.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of an overall structure of a positive displacement blood pump capable of replacing a human heart according to an embodiment of the present invention;
fig. 2 is a schematic view of a volumetric blood pump according to embodiment 1 of the present invention in a diastolic phase;
fig. 3 is a schematic view of a volumetric blood pump according to embodiment 2 of the present invention in a systolic phase.
Description of reference numerals:
1. a control coil; 2. a rigid body; 21. an inner cavity; 22. an outer cavity; 3. a left elastic bell; 4. a right elastic bell; 5. a left liquid inlet; 6. a left liquid outlet; 7. a first one-way valve; 8. a second one-way valve; 9. a right liquid inlet; 10. a right liquid outlet; 11. a third one-way valve; 12. a fourth one-way valve; 13. and a permanent magnet.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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", etc. 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, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in figure 1, the positive displacement blood pump capable of replacing human heart comprises a control coil 1, a rigid body 2 with an inner cavity 21 and an outer cavity 22, a left elastic bell 3, a right elastic bell 4 and a permanent magnet 13.
The left elastic bell 3 and the right elastic bell 4 are made of elastic materials, and the tips of the left elastic bell 3 and the right elastic bell 4 are respectively bonded with the left surface and the right surface of the permanent magnet 13, so that the left elastic bell 3 and the right elastic bell 4 keep synchronous motion with the permanent magnet 13.
The permanent magnet 13 is arranged between the left elastic bell 3 and the right elastic bell 4, the three are all in the inner cavity 21 of the rigid body 2 and are surrounded by the control coil 1, and the control coil 1 is in the outer cavity 22 of the rigid body 2. The control coil 1 can control the movement of the permanent magnet 13 through external charging and discharging, the permanent magnet 13 and the control coil are not in direct contact, and the left and right movement of the permanent magnet 3 is controlled in a magnetic suspension mode, so that the left elastic bell-shaped body 3 and the right elastic bell-shaped body 4 are driven to have different sizes, and the inflow and the outflow of blood are controlled.
The tail part of the left elastic bell-shaped body 3 is provided with a left liquid inlet 5 and a left liquid outlet 6, the valve arranged at the left liquid inlet 5 is a first one-way valve 7, and the valve arranged at the left liquid outlet 6 is a second one-way valve 8; the tail part of the right elastic bell-shaped body 4 is provided with a right liquid inlet 9 and a right liquid outlet 10, the valve arranged at the right liquid inlet 9 is a third one-way valve 11, and the valve arranged at the right liquid outlet 10 is a fourth one-way valve 12. The first one-way valve 7 is able to control the arterial blood from both lungs to flow only from the left inlet orifice 5 into the left elastic bell 3; the second one-way valve 8 can control the blood in the left elastic bell-shaped body 3 to flow into all organs of the body only through the left liquid outlet 6. The third one-way valve 11 can control the venous blood of the whole body to flow into the right elastic bell-shaped body 4 only from the right inlet 9; the fourth one-way valve 12 can control the blood in the right elastic bell 4 to flow into the two lungs only through the right outlet 10. The charging and discharging of the control coil 1 may be controlled by a lead wire connected to the outside of the human body, or may be controlled by an infinitely chargeable battery. The volume of the left elastic bell 3 is 50-180mL, and the volume of the right elastic bell 4 is 50-180 mL.
Example 1: diastolic phase of heart
The left elastic bell 3 corresponds to the left ventricle of the human body and can contract and relax for receiving arterial blood from the lungs. The first one-way valve 7 corresponds to the mitral valve and the second one-way valve 8 corresponds to the aortic valve. The right elastic bell 4 corresponds to the right ventricle of the human body, and is capable of contracting and expanding, and is used for receiving venous blood from the human body. The third one-way valve 11 corresponds to the tricuspid valve and the fourth one-way valve 12 corresponds to the pulmonary valve. As shown in fig. 2, in diastole, the fully oxygenated arterial blood in the lungs enters the left elastic bell 3 through the first one-way valve 7, the volume of the left elastic bell 3 is increased, after reaching the preset dilatation time, the first one-way valve 7 is closed, the second one-way valve 8 is opened, the volume of the left elastic bell 3 begins to shrink by means of the magnetic suspension force between the permanent magnet 13 and the control coil 1, and the arterial blood flows into the whole body.
Example 2: systolic phase of heart
In the systole phase, as shown in fig. 3, venous blood from the whole body flows into the right elastic bell-shaped body 4 through the third one-way valve 11, the volume of the right elastic bell-shaped body 4 is increased, after the preset dilatation time is reached, the third one-way valve 11 is closed, the fourth one-way valve 12 is opened, the volume of the right elastic bell-shaped body 4 begins to be reduced by means of the magnetic suspension force between the permanent magnet 13 and the control coil 1, and venous blood flows into the lung.
The positive displacement blood pump capable of replacing the human heart has the functions of the left ventricle and the right ventricle, can completely replace the human heart, can perfuse organs of the whole body, particularly end organs, and avoids various complications caused by the fact that the constant-flow mechanical pump cannot perfuse the end organs. The invention adopts a magnetic suspension control mode, and is more stable and reliable.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A volume blood pump capable of replacing human heart is characterized in that: including control coil (1) and rigid body (2) that have inlayer cavity (21) and outer cavity (22), control coil (1) set up in outer cavity (22), be provided with two relative elastic clock-shaped bodies that set up in inlayer cavity (21), the inside of elastic clock-shaped body is the cavity structure, two be provided with permanent magnet (13) between the elastic clock-shaped body, the tow sides of permanent magnet (13) respectively with two the most advanced fixed connection of elastic clock-shaped body, two the afterbody of elastic clock-shaped body all is provided with inlet and the liquid outlet that is linked together rather than inside cavity structure, inlet and liquid outlet department all are provided with the valve.
2. The human heart-substitutable positive displacement blood pump of claim 1, wherein: the valves are all one-way valves.
3. The human heart-substitutable positive displacement blood pump of claim 2, wherein: the two elastic bellies are divided into a left elastic bell (3) and a right elastic bell (4), the tail part of the left elastic bell (3) is provided with a left liquid inlet (5) and a left liquid outlet (6), a valve arranged at the left liquid inlet (5) is a first one-way valve (7), and a valve arranged at the left liquid outlet (6) is a second one-way valve (8); the tail part of the right elastic bell-shaped body (4) is provided with a right liquid inlet (9) and a right liquid outlet (10), the valve arranged at the right liquid inlet (9) is a third one-way valve (11), and the valve arranged at the right liquid outlet (10) is a fourth one-way valve (12).
4. A volumetric blood pump as defined in claim 3 which is alternative to the human heart and wherein: the first one-way valve (7) is used for arterial blood from the double lungs to enter the left elastic bell-shaped body (3), the second one-way valve (8) is used for blood in the left elastic bell-shaped body (3) to flow out to the whole body, the third one-way valve (11) is used for venous blood from the whole body to enter the right elastic bell-shaped body (4), and the fourth one-way valve (12) is used for blood in the right elastic bell-shaped body (4) to flow out.
5. The human heart-substitutable positive displacement blood pump of claim 1, wherein: the volume of the elastic bell-shaped body is 50-180 mL.
6. The human heart-substitutable positive displacement blood pump of claim 1, wherein: the control coil (1) is controlled by a wire or an infinitely chargeable battery connected to the outside of the human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020923085.1U CN212395606U (en) | 2020-05-27 | 2020-05-27 | Volumetric blood pump capable of replacing human heart |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020923085.1U CN212395606U (en) | 2020-05-27 | 2020-05-27 | Volumetric blood pump capable of replacing human heart |
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| CN212395606U true CN212395606U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569172A (en) * | 2020-05-27 | 2020-08-25 | 安生健康科技（天津）有限公司 | Volumetric blood pump capable of replacing human heart |
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- 2020-05-27 CN CN202020923085.1U patent/CN212395606U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569172A (en) * | 2020-05-27 | 2020-08-25 | 安生健康科技（天津）有限公司 | Volumetric blood pump capable of replacing human heart |
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