CN113332593A - Anticoagulation-free heart auxiliary contraction device - Google Patents
Anticoagulation-free heart auxiliary contraction device Download PDFInfo
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- CN113332593A CN113332593A CN202110518409.2A CN202110518409A CN113332593A CN 113332593 A CN113332593 A CN 113332593A CN 202110518409 A CN202110518409 A CN 202110518409A CN 113332593 A CN113332593 A CN 113332593A
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- 230000008602 contraction Effects 0.000 title claims abstract description 78
- 238000012545 processing Methods 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 230000000747 cardiac effect Effects 0.000 claims abstract 11
- 239000000523 sample Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- 210000002837 heart atrium Anatomy 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 4
- 229920000544 Gore-Tex Polymers 0.000 claims description 3
- 230000010100 anticoagulation Effects 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 8
- 230000017531 blood circulation Effects 0.000 abstract description 2
- 238000010009 beating Methods 0.000 description 9
- 230000033764 rhythmic process Effects 0.000 description 9
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- 230000023555 blood coagulation Effects 0.000 description 6
- 208000015181 infectious disease Diseases 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000002107 myocardial effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 210000004165 myocardium Anatomy 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 206010019280 Heart failures Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000002054 transplantation Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000019269 advanced heart failure Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003205 diastolic effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 210000005003 heart tissue Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000005240 left ventricle Anatomy 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
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000005241 right ventricle Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4836—Diagnosis combined with treatment in closed-loop systems or methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
- A61B5/6869—Heart
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
- A61B8/065—Measuring blood flow to determine blood output from the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/04—Heartbeat characteristics, e.g. ECG, blood pressure modulation
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Abstract
本发明涉及一种免于抗凝的心脏辅助收缩装置，包括中央处理器(1)以及与中央处理器(1)连接的电源(4)、心电监测模块(7)以及柔性驱动外壳(5)，所述的柔性驱动外壳(5)用于包裹在心脏(8)外侧，包括若干个平铺设置的收缩袋(51)，每个收缩袋(51)内部密封存储有液体介质(52)，且外表面设有与中央处理器(1)连接的电极(6)，所述的电极(6)包括负电极(61)和正电极(62)，所述的负电极(61)和正电极(62)分别设于收缩袋(51)的相对两侧。与现有技术相比，本发明灵活性强，结构简单，体积小，便于安装，安全性好，有效带动血液流动，提高心脏的整体搏出量。
The invention relates to an anticoagulation-free cardiac assisted contraction device, comprising a central processing unit (1), a power supply (4) connected to the central processing unit (1), an electrocardiogram monitoring module (7) and a flexible drive housing (5) ), the flexible drive housing (5) is used to wrap around the outside of the heart (8), and includes a plurality of shrink bags (51) arranged in a tiled manner, and a liquid medium (52) is sealed and stored inside each shrink bag (51). , and the outer surface is provided with an electrode (6) connected to the central processing unit (1), the electrode (6) includes a negative electrode (61) and a positive electrode (62), the negative electrode (61) and the positive electrode ( 62) are respectively arranged on opposite sides of the shrink bag (51). Compared with the prior art, the present invention has strong flexibility, simple structure, small volume, convenient installation, good safety, effectively drives blood flow, and improves the overall stroke volume of the heart.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anticoagulation-free heart auxiliary contraction device.
Background
The heart failure refers to a heart circulatory disorder syndrome caused by insufficient blood perfusion in the arterial system and blood stasis in the venous system, which is caused by failure of the systolic or diastolic function of the heart, and failure of adequate discharge of venous return blood from the heart. Patients with advanced heart failure cannot live normally or even lose life due to the non-regenerability of myocardial tissue in the heart, and the problem can be solved only by heart transplantation, but the donor of heart transplantation is in short supply.
The current measures for solving the problem are generally to attach a flexible contraction material on the surface of heart tissue, and to drive the flexible contraction material to contract so as to assist the heart to contract. Chinese patent No. cn201910364486.x proposes an artificial heart assist device, which comprises a bag-shaped pressurizing bag sleeved outside the heart, a delivery pipe, a delivery pump, a fluid source and a controller; the outer wall and the inner wall of the pressurizing bag are provided with a pressurizing cavity, the inner wall can be attached to the surface of the heart, one end of the conveying pipe is communicated with the pressurizing cavity, the other end of the conveying pipe is connected with the conveying pump, the conveying pump can input or discharge fluid in a fluid source into or out of the pressurizing cavity through the conveying pipe, so that the inner wall is expanded or sunken, positive pressure or negative pressure is applied to the surfaces of the left ventricle and the right ventricle of the heart, the contraction or the relaxation of the heart is promoted, and the controller can control the conveying pump to rotate forwards or backwards. The artificial heart auxiliary device can actively promote the contraction or the relaxation of the heart, recover the normal blood pumping function of the heart and improve the symptoms of heart failure.
However, the following problems exist:
the heart is driven by the pressurizing bag, the shape of the pressurizing bag cannot be adjusted, the pressurizing bag cannot adapt to the shape of the heart, and meanwhile, the pressurizing bag applies the same pressure to all positions of the heart, so that the local adjustment cannot be performed, the effect of heart contraction is poor, and the heart can be damaged;
the patent requires a delivery pump and a fluid source, is bulky, difficult to install, and very prone to infection, blood coagulation dysfunction and thrombus, and requires harsh environmental conditions for use of the device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an anticoagulation-free heart auxiliary contraction device which has the advantages of strong flexibility, simple structure, small volume, convenient installation, good safety, effective blood flow driving and heart overall stroke amount improvement.
The purpose of the invention can be realized by the following technical scheme:
an anticoagulation-free heart auxiliary contraction device comprises a central processing unit, and a power supply, an electrocardiogram monitoring module and a flexible driving shell which are connected with the central processing unit, wherein the flexible driving shell is used for wrapping the outside of the heart and comprises a plurality of rectangular contraction bags which are laid flatly, a liquid medium is stored in each contraction bag in a sealing manner, electrodes connected with the central processing unit are arranged on the outer surface of each contraction bag, each electrode comprises a negative electrode and a positive electrode, and the negative electrode and the positive electrode are respectively arranged on two opposite sides of each contraction bag;
after the central processing unit enables the negative electrode and the positive electrode on the two sides of the contraction bag to be electrified, the negative electrode and the positive electrode can attract each other to be close to each other, so that the liquid medium in the contraction bag is extruded to the side of the contraction bag, and the contraction bag contracts along the tiling direction of the contraction bag and drives the heart to contract;
the electrocardio monitoring module is arranged on the outer surface of the heart, monitors the beating rhythm information of the heart and sends the beating rhythm information to the central processing unit, and the central processing unit controls the contraction and the relaxation of the flexible driving shell according to the beating rhythm information to ensure that the contraction and the contraction of the flexible driving shell are in a synchronous state, so that the flexible driving shell is prevented from resisting the contraction of the heart;
because the flexible driving shell has plasticity and can be wrapped on the surface of the heart in any shape, the auxiliary force applied to each direction of the myocardium is ensured, and the myocardial contraction function is effectively improved.
Further, the heart assisted contraction device further comprises a stroke volume monitoring module connected with the central processing unit, the stroke volume monitoring module comprises a first ultrasonic probe and a second ultrasonic probe which are connected with the central processing unit, the first ultrasonic probe is close to the outflow port of the ventricle of the heart, the second ultrasonic probe is close to the outflow port of the atrium of the heart, and the stroke volumes of the ventricle and the atrium can be monitored through the first ultrasonic probe and the second ultrasonic probe respectively;
the central processing unit can independently adjust and drive the voltage and the current of the negative electrode and the positive electrode on each contraction bag, and change the electric field force between the negative electrode and the positive electrode, thereby changing the deformation degree of the contraction bags, regulating and controlling the auxiliary contraction force of the heart, carrying out the component regulation and control on different local stress points between the flexible driving shell and the heart, and having strong flexibility;
according to the stroke volume of the ventricles and the atria, the central processing unit adjusts the size and the distribution of the contraction force of the flexible driving shell, ensures that the contraction of the flexible driving shell is matched with the contraction of the heart, more effectively drives the blood to flow, and improves the integral stroke volume of the heart.
Further, the power be wireless rechargeable power, can follow the human outside and carry out wireless charging to the power, easy operation, simple structure, the installation degree of difficulty is low, and has reduced the risk of blood coagulation and infection.
Furthermore, the surface layer of the flexible driving shell is provided with an anti-adhesion coating to prevent the flexible driving shell from being adhered to surrounding tissues.
Further, the anti-adhesion coating is a GORE-TEX material.
Further, the material of the shrinkage bag is non-malleable, so that when the shrinkage bag is pressed by the negative electrode and the positive electrode, the size of the shrinkage bag along the laying direction of the shrinkage bag is reduced, and the shrinkage bag is shrunk.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention comprises a central processing unit, a power supply connected with the central processing unit, an electrocardiogram monitoring module and a flexible driving shell, wherein the flexible driving shell is used for wrapping the outside of the heart and comprises a plurality of rectangular shrinkage bags which are flatly laid, a liquid medium is hermetically stored in each shrinkage bag, the outer surface of each shrinkage bag is provided with an electrode connected with the central processing unit, the electrodes comprise a negative electrode and a positive electrode, the negative electrode and the positive electrode are respectively arranged at two opposite sides of the shrinkage bag, after the negative electrode and the positive electrode at the two sides of the shrinkage bag are electrified by the central processing unit, the negative electrode and the positive electrode can be mutually attracted and close, so that the liquid medium in the shrinkage bag is extruded to the side of the shrinkage bag, the shrinkage bag shrinks along the flatting direction and drives the heart to shrink, the structure is simple, the volume is small, the installation is convenient, the shrinkage bag can be completely placed in the human body, and the risks of blood coagulation and infection are greatly reduced, the safety is good, the central processing unit can independently adjust and drive the voltage and the current of the negative electrode and the positive electrode on each contraction bag, and change the electric field force between the negative electrode and the positive electrode, so that the deformation degree of the contraction bags is changed, the auxiliary contraction force of the heart is regulated and controlled, different local stress points between the flexible driving shell and the heart can be regulated and controlled in a componentization manner, and the flexibility is strong;
(2) the flexible driving shell has plasticity and can be wrapped on the surface of the heart in any shape, so that the auxiliary force applied to each direction of the myocardium is ensured, and the myocardial contraction function is effectively improved;
(3) the electrocardio monitoring module is arranged on the outer surface of a heart, monitors the beating rhythm information of the heart and sends the beating rhythm information to the central processing unit, and the central processing unit controls the contraction and the relaxation of the flexible driving shell according to the beating rhythm information to ensure that the contraction and the contraction of the flexible driving shell are in a synchronous state, so that the flexible driving shell is prevented from resisting the contraction of the heart;
(4) the invention can monitor the stroke amount of the ventricle and the atrium through the first ultrasonic probe and the second ultrasonic probe respectively, and adjust the contraction force and the distribution of the flexible driving shell through the central processing unit according to the stroke amount of the ventricle and the atrium, thereby ensuring that the contraction of the flexible driving shell is matched with the contraction of the heart, more effectively driving the blood to flow and improving the integral stroke amount of the heart;
(5) the power supply is a wireless charging type power supply, can be wirelessly charged from the outside of a human body, is simple to operate, has a simple structure and low installation difficulty, and reduces the risks of blood coagulation and infection;
(6) the surface layer of the flexible driving shell is provided with the anti-adhesion coating, so that the flexible driving shell is prevented from being adhered to surrounding tissues;
(7) the material of the shrinkbag is non-malleable material, so that when the shrinkbag is squeezed by the negative electrode and the positive electrode, the size of the shrinkbag along the tiling direction is reduced, and the shrinkbag can realize shrinkage.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic view of the installation of the present invention;
FIG. 3 is a schematic structural view of the flexible drive housing prior to energization;
FIG. 4 is a schematic structural view of the flexible drive housing after being energized;
the reference numbers in the figures illustrate:
1. the device comprises a central processing unit, 2, a first ultrasonic probe, 3, a second ultrasonic probe, 4, a power supply, 5, a flexible driving shell, 6, an electrode, 7, an electrocardio monitoring module, 8, a heart, 51, a contraction bag, 52, a liquid medium, 61, a negative electrode and 62, a positive electrode.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
An anticoagulation-free heart auxiliary contraction device is shown in fig. 1 and fig. 2 and comprises a central processing unit 1, a power supply 4 connected with the central processing unit 1, an electrocardiogram monitoring module 7, a stroke volume monitoring module and a flexible driving shell 5, wherein the flexible driving shell 5 is used for wrapping the outside of a heart 8 and comprises a plurality of contraction bags 51 which are flatly laid, a liquid medium 52 is hermetically stored in each contraction bag 51, an electrode 6 connected with the central processing unit 1 is arranged on the outer surface of each contraction bag 51, each electrode 6 comprises a negative electrode 61 and a positive electrode 62, and the negative electrode 61 and the positive electrode 62 are respectively arranged on two opposite sides of each contraction bag 51;
as shown in fig. 3, before the negative electrode 61 and the positive electrode 62 are energized, the liquid medium 52 in the contraction bag 51 is uniformly filled, as shown in fig. 4, after the central processing unit 1 energizes the negative electrode 61 and the positive electrode 62 on both sides of the contraction bag 51, the negative electrode 61 and the positive electrode 62 are attracted to each other and approach each other, so that the liquid medium 52 in the contraction bag 51 is extruded to the side of the contraction bag 51, the contraction bag 51 contracts along the laying direction thereof, and the heart 8 is driven to contract;
the electrocardio monitoring module 7 is arranged on the outer surface of the heart 8 and used for monitoring the beating rhythm information of the heart 8 and sending the beating rhythm information to the central processing unit 1, and the central processing unit 1 controls the contraction and the relaxation of the flexible driving shell 5 according to the beating rhythm information, so that the contraction of the flexible driving shell 5 and the contraction of the heart 8 are in a synchronous state, and the flexible driving shell 5 is prevented from resisting the contraction of the heart 8.
Meanwhile, the flexible driving shell 5 has plasticity due to the structural characteristics and can be wrapped on the surface of the heart 8 in any shape, so that the auxiliary force applied to each direction of the myocardium is ensured, and the myocardial contraction function is effectively improved.
The stroke volume monitoring module comprises a first ultrasonic probe 2 and a second ultrasonic probe 3 which are connected with the central processing unit 1, the first ultrasonic probe 2 is close to the outflow port of the ventricle of the heart 8, the second ultrasonic probe 3 is close to the outflow port of the atrium of the heart 8, and the stroke volumes of the ventricle and the atrium can be monitored through the first ultrasonic probe 2 and the second ultrasonic probe 3 respectively;
the central processing unit 1 can independently adjust and drive the voltage and the current of the negative electrode 61 and the positive electrode 62 on each contraction bag 51, change the electric field force between the negative electrode 61 and the positive electrode 62, thereby changing the deformation degree of the contraction bag 51, regulating and controlling the auxiliary contraction force of the heart 8, and performing component regulation and control on different local stress points between the flexible driving shell 5 and the heart 8, so as to achieve better matching;
when the stroke volume is low, the central processing unit 1 adjusts the voltage and current of the negative electrode 61 and the positive electrode 62 on the corresponding contraction bag 51, adjusts the contraction force in time, and improves the whole stroke volume of the heart 8.
The electrocardio monitoring module 7 adopts the existing electrocardio monitor.
According to the stroke quantity of the ventricles and the atria, the central processing unit 1 adjusts the contraction force and distribution of the flexible driving shell 5, ensures that the contraction of the flexible driving shell 5 is matched with the contraction of the heart 8, and more effectively drives the blood to flow.
The power 4 is wireless rechargeable power, can follow the human outside and carry out wireless charging to power 4, easy operation, simple structure, the installation degree of difficulty is low, and has reduced the risk of blood coagulation and infection.
The surface layer of the flexible driving shell 5 is provided with an anti-adhesion coating which is made of GORE-TEX material and prevents the flexible driving shell 5 from being adhered with surrounding tissues.
The material of the shrinkbag 51 is a non-ductile material, so that when the shrinkbag 51 is pressed by the negative electrode 61 and the positive electrode 62, its size in its laying direction is reduced, so that the shrinkbag 51 is shrunk.
This embodiment has provided a heart auxiliary contraction device who avoids anticoagulation, can divide the partial stress point of difference to carry out the weight to the flexible drive shell 5 and heart 8 between and regulate and control, according to the volume of fighting of ventricle and atrium, adjust the contractile force size and the distribution of flexible drive shell 5 through central processing unit 1, guarantee that the shrink of flexible drive shell 5 matches the shrink of heart 8, it is mobile to drive blood more effectively, the device simple structure simultaneously, small, the installation of being convenient for, can arrange in the human body completely, the risk of blood coagulation and infection is greatly reduced.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
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| CN202110518409.2A CN113332593A (en) | 2021-05-12 | 2021-05-12 | Anticoagulation-free heart auxiliary contraction device |
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| CN202110518409.2A CN113332593A (en) | 2021-05-12 | 2021-05-12 | Anticoagulation-free heart auxiliary contraction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115869531A (en) * | 2023-03-08 | 2023-03-31 | 中国医学科学院阜外医院 | An implantable ventricular assist mechanical contraction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115869531A (en) * | 2023-03-08 | 2023-03-31 | 中国医学科学院阜外医院 | An implantable ventricular assist mechanical contraction device |
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