CN109938994A - An artificial heart assist device - Google Patents
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- CN109938994A CN109938994A CN201910364486.XA CN201910364486A CN109938994A CN 109938994 A CN109938994 A CN 109938994A CN 201910364486 A CN201910364486 A CN 201910364486A CN 109938994 A CN109938994 A CN 109938994A
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- 210000005240 left ventricle Anatomy 0.000 claims abstract description 6
- 210000005241 right ventricle Anatomy 0.000 claims abstract description 6
- 239000000872 buffer Substances 0.000 claims description 9
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000010247 heart contraction Effects 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 230000000747 cardiac effect Effects 0.000 claims description 5
- 230000003205 diastolic effect Effects 0.000 claims description 5
- 230000001121 heart beat frequency Effects 0.000 claims description 5
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- 206010019280 Heart failures Diseases 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 abstract description 6
- 208000024891 symptom Diseases 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
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- 208000035475 disorder Diseases 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 210000003516 pericardium Anatomy 0.000 description 2
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- 230000004083 survival effect Effects 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 206010024119 Left ventricular failure Diseases 0.000 description 1
- 208000009378 Low Cardiac Output Diseases 0.000 description 1
- 206010037368 Pulmonary congestion Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
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Abstract
本发明涉及医疗器械技术领域，具体是一种人工心脏辅助装置，包括套在心脏外的兜状加压囊，以及输送管、输送泵、流体源和控制器；加压囊的外壁和内壁之间设有加压腔，内壁能够贴附在心脏的表面，输送管的一端连通加压腔，另一端连接输送泵，输送泵能够通过输送管将流体源内的流体输入或排出加压腔，使内壁膨出或凹陷，从而对心脏的左、右心室表面施加正压或负压，促进心脏收缩或舒张，控制器能够控制输送泵正转或反转。本发明人工心脏辅助装置，能够主动促进心脏收缩或舒张，使心脏恢复正常的泵血功能，改善心衰症状，具有非常重要应用价值，且结构简单，不需要切除心脏，只需要外科微创手术植入，且使用寿命长，更换方便，易为病人接受。
The invention relates to the technical field of medical devices, in particular to an artificial heart assist device, comprising a pocket-shaped pressurizing bag sheathed outside the heart, a delivery tube, a delivery pump, a fluid source and a controller; There is a pressurized cavity in between, and the inner wall can be attached to the surface of the heart. One end of the delivery tube is connected to the pressurized cavity, and the other end is connected to the delivery pump. The delivery pump can input or discharge the fluid in the fluid source through the delivery tube. The inner wall is bulged or concave, thereby exerting positive or negative pressure on the surface of the left and right ventricles of the heart, promoting the contraction or relaxation of the heart, and the controller can control the forward or reverse rotation of the delivery pump. The artificial heart assist device of the invention can actively promote the contraction or relaxation of the heart, restore the normal blood pumping function of the heart, and improve the symptoms of heart failure. It is implantable, has a long service life, is easy to replace, and is easily accepted by patients.
Description
技术领域technical field
本发明涉及医疗器械技术领域，具体是一种人工心脏辅助装置。The invention relates to the technical field of medical devices, in particular to an artificial heart assist device.
背景技术Background technique
心力衰竭(heart failure)简称心衰，是指由于心脏的收缩功能和(或)舒张功能发生障碍，不能将静脉回心血量充分排出心脏，导致静脉系统血液淤积，动脉系统血液灌注不足，从而引起心脏循环障碍症候群，此种障碍症候群集中表现为肺淤血、腔静脉淤血。心力衰竭并不是一个独立的疾病，而是心脏疾病发展的终末阶段。其中绝大多数的心力衰竭都是以左心衰竭开始的，即首先表现为肺循环淤血。心衰药物治疗二年存活率约80％，五年存活率仅50％左右。心衰的治疗必须寻求突破，才能挽救大量的频死人群。Heart failure, referred to as heart failure, refers to the failure of the systolic and/or diastolic function of the heart to fully discharge the venous blood back to the heart, resulting in blood stasis in the venous system and insufficient blood perfusion in the arterial system, resulting in Cardiac circulation disorder syndrome, which is manifested as pulmonary congestion and vena cava congestion in this disorder syndrome cluster. Heart failure is not an independent disease, but a terminal stage in the development of heart disease. The vast majority of heart failure begins with left heart failure, which first manifests as pulmonary circulation congestion. The two-year survival rate of heart failure drug treatment is about 80%, and the five-year survival rate is only about 50%. The treatment of heart failure must seek breakthroughs in order to save a large number of people who frequently die.
目前主动脉内气囊反搏对低心排血量心衰特别合并心原性休克者有效，但由于设备笨重，不能携带，不适合、不方便长期使用。国外人工心脏研究大多都集中在模仿心脏结构上，而且要取代和切除病人心脏，又由于能源供应不足，尽管也有人工心脏应用临床，但病人死亡风险大，而且寿命很短，终于因为使用寿命短、并发症多，没有为病人接受，而推广困难。心脏移植由于供体缺乏，手术创伤大，成本高，免疫排斥反应高，常常难以广泛实施。At present, intra-aortic balloon counterpulsation is effective for patients with low cardiac output, especially those with cardiogenic shock. Most of the foreign artificial heart research focuses on imitating the structure of the heart, and it is necessary to replace and remove the patient's heart. Due to the lack of energy supply, although artificial hearts are also used clinically, the patient has a high risk of death and has a short lifespan. Finally, because of the short lifespan. , many complications, not accepted by patients, and difficult to promote. Heart transplantation is often difficult to perform widely due to lack of donors, large surgical trauma, high cost, and high immune rejection.
发明内容SUMMARY OF THE INVENTION
为了解决上述问题，本发明的任务是提供一种人工心脏辅助装置，能够主动促进心脏收缩或舒张，使心脏恢复正常的泵血功能，改善心衰症状，且使用时不需要切除心脏，结构简单，使用寿命长，更换方便，易为病人接受。In order to solve the above problems, the task of the present invention is to provide an artificial heart assist device, which can actively promote the contraction or relaxation of the heart, restore the normal blood pumping function of the heart, and improve the symptoms of heart failure. , long service life, easy to replace, easy for patients to accept.
本发明任务通过下述技术方案实现：The task of the present invention is achieved through the following technical solutions:
一种人工心脏辅助装置，包括能够套在心脏表面的兜状加压囊，以及输送管、输送泵、流体源和控制器；所述加压囊的外壁和内壁之间为空心结构且设有加压腔，加压囊的内壁为柔软弹性薄膜从而能够贴附在心脏的表面，加压囊的外壁硬度大于内壁硬度，输送管的一端连通加压囊的加压腔，另一端连接输送泵，输送泵能够正、反转从而能够通过输送管将流体源内的流体输入或排出加压囊的加压腔，使加压囊的内壁膨出或凹陷，从而对心脏的左、右心室表面施加正压或负压，促进心脏收缩或舒张；所述控制器连接输送泵，并能在心脏收缩时控制输送泵正转以促进心脏收缩，在心脏舒张时控制输送泵反转以促进心脏舒张。An artificial heart assist device, comprising a pocket-shaped pressurizing bag that can be sheathed on the surface of the heart, and a delivery tube, a delivery pump, a fluid source and a controller; the pressurizing bag has a hollow structure between the outer wall and the inner wall and is provided with Pressurized chamber, the inner wall of the pressurized bag is a soft elastic film so that it can be attached to the surface of the heart, the hardness of the outer wall of the pressurized bag is greater than the hardness of the inner wall, one end of the delivery tube is connected to the pressurized chamber of the pressurized bag, and the other end is connected to the delivery pump , the delivery pump can be forward and reversed so that the fluid in the fluid source can be input into or discharged from the pressurized chamber of the pressurized bag through the transfer tube, so that the inner wall of the pressurized bag can be bulged or depressed, so as to exert pressure on the left and right ventricle surfaces of the heart. Positive pressure or negative pressure, to promote cardiac contraction or relaxation; the controller is connected to the delivery pump, and can control the forward rotation of the delivery pump during systole to promote cardiac contraction, and control the reverse rotation of the delivery pump to promote cardiac diastolic during cardiac diastole.
优选，所述加压囊的外壁和内壁之间还设有隔膜，隔膜与内壁之间形成缓冲腔，缓冲腔内填充有缓冲液，隔膜与所述外壁之间形成所述加压腔。Preferably, a diaphragm is further provided between the outer wall and the inner wall of the pressure bag, a buffer cavity is formed between the diaphragm and the inner wall, the buffer cavity is filled with buffer solution, and the pressure cavity is formed between the diaphragm and the outer wall.
优选，所述人工心脏辅助装置还包括传感器，传感器与控制器连接，传感器能够监测使用者的心跳状态并将数据发送至所述控制器，从而使控制器在心脏收缩时控制输送泵正转以促进心脏收缩，在心脏舒张时控制输送泵反转以促进心脏舒张，在心脏停跳时控制输送泵根据正常心跳频率进行正转或反转以促进心脏收缩或舒张。Preferably, the artificial heart assist device further comprises a sensor, the sensor is connected to the controller, the sensor can monitor the heartbeat state of the user and send data to the controller, so that the controller controls the delivery pump to rotate forward when the heart contracts Promote cardiac contraction, control the inversion of the delivery pump during diastole to promote diastole, and control the delivery pump to rotate forward or reverse according to the normal heartbeat frequency to promote cardiac contraction or relaxation when the heart stops.
优选，所述加压囊的外壁材质为硬质硅胶Preferably, the material of the outer wall of the pressure bladder is hard silica gel
优选，所述加压囊的隔膜为柔软硅胶。Preferably, the septum of the pressure bladder is soft silica gel.
优选，所述流体源为密封储流囊，所述输送泵连通储流囊内部，所述储流囊、输送泵、输送管和加压腔组成一个密闭空间，通过所述储液泵将储流囊内一定容量的流体输入或排出所述加压囊的加压腔，从而能够促进心脏收缩排出或舒张吸收对应容量的血液。Preferably, the fluid source is a sealed storage bag, the delivery pump communicates with the inside of the storage bag, the storage bag, the delivery pump, the delivery tube and the pressurized cavity form a closed space, and the storage pump is used to transfer the storage bag. A certain volume of fluid in the flow sac is input into or discharged from the pressurized cavity of the pressurized sac, so as to promote the systolic discharge or diastole to absorb a corresponding volume of blood.
优选，所述储流囊的容量为120-160ml，进一步，优选储流囊的容量为140ml左右。Preferably, the capacity of the storage bag is 120-160ml, and further, the capacity of the storage bag is preferably about 140ml.
优选，所述加压囊的内壁与所述心脏的外表面贴附并连接在一起。Preferably, the inner wall of the compression bladder is attached and connected to the outer surface of the heart.
优选，所述流体为液体或气体，进一步，优选流体为液体。Preferably, the fluid is a liquid or a gas, further preferably, the fluid is a liquid.
优选，所述人工心脏辅助装置还包括能够驱动所述加压囊的内壁进行膨出或凹陷运动的驱动装置。Preferably, the artificial heart assist device further comprises a driving device capable of driving the inner wall of the pressure balloon to bulge or indent.
本发明一种人工心脏辅助装置的有益效果是：设置加压囊为兜状，从而方便从下往上套在心脏外表面，且使加压囊的内壁正好包覆在心脏的左、右心室外表面；通过设置内壁为柔软弹性薄膜，从而便于紧贴并吸附在心脏表面；设置连通加压囊加压腔的输送管、输送泵和储流囊，当输送泵正转时，能够通过输送管将储流囊内的流体输入加压囊的加压腔，进而使隔膜及内壁朝向心脏膨出(收缩)，从而对心脏表面施加正压力，促进心脏收缩；当输送泵反转时，能够通过输送管将加压腔内的流体排出至储流囊，使加压腔内形成负压，进而使内壁朝向外壁凹陷(扩张)，由于内壁贴附在心脏表面，相当于吸附在心脏表面的吸盘，从而能够带动心脏表面向外扩张，促进心脏扩张；通过设置控制器，能够主动控制输送泵进行正转或反转以促进心脏收缩或舒张，从而主动辅助心脏，维持心脏正常排血；通过设置传感器，能够监测使用者的心跳状态并将数据发送至所述控制器，从而使控制器能够根据使用者的心跳频率主动控制输送泵的工作状态；设置其他能够驱动所述加压囊的内壁进行膨出或凹陷运动的驱动装置，对本申请中的流体驱动方式是一种有利的补充或者替换方式；加压囊的内壁与所述心脏的外表面贴附并连接在一起，如粘连、缝合等固定连接方式，更加有利于使心脏表面随着内壁的运动而运动；和现有技术相比，本发明一种人工心脏辅助装置，能够主动促进心脏收缩或舒张，使心脏恢复正常的泵血功能，改善心衰症状，延长病人寿命，具有非常重要应用价值，且结构简单，不需要切除心脏，只需要外科微创手术植入，且使用寿命长，更换方便，易为病人接受。The beneficial effect of the artificial heart assisting device of the present invention is that: the pressure bag is set in a pocket shape, so that it is convenient to be sheathed on the outer surface of the heart from bottom to top, and the inner wall of the pressure bag is just wrapped on the left and right hearts of the heart. Outdoor surface; by setting the inner wall to be a soft and elastic film, it is convenient to stick to and adsorb on the surface of the heart; set the delivery tube, delivery pump and storage sac connected to the pressure chamber of the pressurized bag, when the delivery pump rotates forward, it can pass the delivery The tube feeds the fluid in the reservoir bag into the pressurized chamber of the pressurized bag, thereby causing the diaphragm and inner wall to bulge (contract) toward the heart, thereby exerting positive pressure on the surface of the heart and promoting cardiac contraction; when the delivery pump is reversed, it can The fluid in the pressurized chamber is discharged to the reservoir sac through the delivery tube, so that negative pressure is formed in the pressurized chamber, and then the inner wall is concave (expanded) toward the outer wall. The suction cup can drive the surface of the heart to expand outward and promote the expansion of the heart; by setting the controller, the delivery pump can be actively controlled to rotate forward or reverse to promote the contraction or relaxation of the heart, so as to actively assist the heart and maintain the normal blood flow of the heart; A sensor is provided, which can monitor the heartbeat state of the user and send the data to the controller, so that the controller can actively control the working state of the delivery pump according to the heartbeat frequency of the user; set other inner walls that can drive the pressurized bladder The driving device for bulging or concave motion is an advantageous supplement or alternative to the fluid driving method in this application; the inner wall of the compression bag is attached and connected to the outer surface of the heart, such as adhesion and suture The fixed connection mode is more conducive to the movement of the heart surface with the movement of the inner wall; compared with the prior art, the artificial heart assist device of the present invention can actively promote the contraction or relaxation of the heart, so that the heart can return to normal pumping. Function, improve heart failure symptoms, prolong patient life, have very important application value, and simple structure, do not need to remove the heart, only need surgical minimally invasive surgery implantation, and long service life, easy to replace, easy for patients to accept.
附图说明Description of drawings
图1是实施例中本发明人工心脏辅助装置的结构示意图。FIG. 1 is a schematic structural diagram of an artificial heart assist device of the present invention in an embodiment.
其中，加压囊1，外壁11，内壁12，隔膜13，缓冲腔14，加压腔15，输送管2，输送泵3，储流囊4，控制器5，传感器6，心脏7。Among them, the pressure bladder 1 , the outer wall 11 , the inner wall 12 , the diaphragm 13 , the buffer chamber 14 , the pressure chamber 15 , the delivery tube 2 , the delivery pump 3 , the storage bag 4 , the controller 5 , the sensor 6 , and the heart 7 .
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处说描述的具体实施例仅仅用于解释本发明，并不用于限定本发明。本实施例中，流体优选液体。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In this embodiment, the fluid is preferably liquid.
如图1所示，人工心脏辅助装置，包括能够套在心脏7表面的兜状加压囊1，以及输送管2、输送泵3、储流囊4和控制器5；加压囊1为兜状，从而方便从下方套在心脏7外表面，且使加压囊1的内壁11正好包覆在心脏7的左、右心室外表面；所述加压囊1的外壁11和内壁12之间为空心结构，外壁11和内壁12之间还设有隔膜13，内壁12为柔软弹性薄膜从而能够贴附在心脏7的表面，加压囊1的外壁11材质为硬质硅胶，加压囊1的隔膜13为柔软硅胶，隔膜13与内壁12之间形成缓冲腔14，缓冲腔14内填充有缓冲液(润滑液)，隔膜13与外壁11之间形成加压腔15，输送管2的一端连接在外壁11上并连通加压腔15，另一端连接输送泵3，储流囊4、输送泵3、输送管2和加压腔15组成一个密闭空间，输送泵3能够正转或反转，当输送泵3正转时，能够通过输送管2将储流囊4内的液体输入加压腔15，进而使隔膜13及内壁12朝向心脏7膨出(收缩)，从而对心脏7表面施加正压力，促进心脏7收缩；当输送泵3反转时，能够通过输送管2将加压腔15内的液体排出至储流囊4，使加压腔15内形成负压，进而使隔膜13及内壁12朝向外壁11凹陷贴紧(扩张)，由于内壁12贴附在心脏7表面，相当于吸附在心脏7表面的吸盘，从而能够带动心脏7表面向外扩张，促进心脏7扩张，此处，也可以采用粘连、缝合、或者其他便于实施的方式将内壁与心脏表面固定连接，更加利于使内壁带动心脏表面扩张；所述控制器5连接输送泵3，并能在心脏7收缩时控制输送泵3正转以促进心脏7收缩，在心脏7舒张时控制输送泵3反转以促进心脏7舒张；通过设置控制器5，能够主动控制输送泵4进行正转或反转以促进心脏7收缩或舒张，从而主动辅助心脏7，维持心脏7正常泵血。As shown in FIG. 1, the artificial heart assist device includes a pocket-shaped pressurizing bag 1 that can be sheathed on the surface of the heart 7, as well as a delivery tube 2, a delivery pump 3, a reservoir 4 and a controller 5; the pressurizing bag 1 is a pocket shape, so as to be convenient to cover the outer surface of the heart 7 from below, and make the inner wall 11 of the compression bag 1 just wrap the left and right ventricle outer surfaces of the heart 7; between the outer wall 11 and the inner wall 12 of the compression bag 1 It is a hollow structure, a diaphragm 13 is also arranged between the outer wall 11 and the inner wall 12, the inner wall 12 is a soft elastic film so that it can be attached to the surface of the heart 7, the outer wall 11 of the pressure bag 1 is made of hard silica gel, and the pressure bag 1 The diaphragm 13 is made of soft silica gel, a buffer cavity 14 is formed between the diaphragm 13 and the inner wall 12, the buffer cavity 14 is filled with a buffer (lubricating liquid), a pressurized cavity 15 is formed between the diaphragm 13 and the outer wall 11, and one end of the delivery pipe 2 It is connected to the outer wall 11 and connected to the pressurizing chamber 15, and the other end is connected to the delivery pump 3. The storage bag 4, the delivery pump 3, the delivery pipe 2 and the pressurizing chamber 15 form a closed space, and the delivery pump 3 can rotate forward or reversely. , when the delivery pump 3 rotates forward, the liquid in the storage bag 4 can be input into the pressure chamber 15 through the delivery tube 2, so that the diaphragm 13 and the inner wall 12 are bulged (contracted) toward the heart 7, so as to exert pressure on the surface of the heart 7. The positive pressure promotes the contraction of the heart 7; when the delivery pump 3 is reversed, the liquid in the pressure chamber 15 can be discharged to the storage bag 4 through the delivery tube 2, so that a negative pressure is formed in the pressure chamber 15, and the diaphragm 13 And the inner wall 12 is concave (expanded) toward the outer wall 11, because the inner wall 12 is attached to the surface of the heart 7, which is equivalent to a suction cup adsorbed on the surface of the heart 7, so that the surface of the heart 7 can be driven to expand outward, and the expansion of the heart 7 is promoted. , the inner wall can also be fixedly connected with the heart surface by means of adhesion, suture or other convenient implementation, which is more conducive to making the inner wall drive the heart surface to expand; the controller 5 is connected to the delivery pump 3, and can control the delivery when the heart 7 contracts. The pump 3 rotates forward to promote the contraction of the heart 7, and when the heart 7 is diastolic, the delivery pump 3 is controlled to reverse to promote the diastole of the heart 7; by setting the controller 5, the delivery pump 4 can be actively controlled to rotate forward or reverse to promote the contraction of the heart 7 or diastole, thereby actively assisting the heart 7 and maintaining the normal pumping of the heart 7 .
所述人工心脏辅助装置还包括传感器6，传感器6与控制器5连接，传感器6能够监测使用者的心跳状态并将数据发送至所述控制器5，从而使控制器5在心脏7收缩时控制输送泵3正转以促进心脏7收缩，在心脏7舒张时控制输送泵3反转以促进心脏7舒张；在心脏7停跳时，控制器5控制输送泵3根据正常心跳频率(每分钟60～80次)进行正转或反转，主动促进心脏7收缩或舒张，维持心脏7正常泵血。通过设置传感器6，能够监测使用者的心跳状态并将数据发送至所述控制器5，从而使控制器5能够根据使用者的心跳频率主动控制输送泵的工作状态。The artificial heart assist device also includes a sensor 6, which is connected to the controller 5, and the sensor 6 can monitor the user's heartbeat state and send data to the controller 5, so that the controller 5 controls the heart 7 when it contracts. The delivery pump 3 is rotated forward to promote the contraction of the heart 7, and when the heart 7 is diastolic, the delivery pump 3 is controlled to be reversed to promote the relaxation of the heart 7; when the heart 7 stops beating, the controller 5 controls the delivery pump 3 according to the normal heartbeat frequency (60 ~80 times) to perform forward or reverse rotation, actively promote the contraction or relaxation of the heart 7, and maintain the normal pumping of the heart 7. By setting the sensor 6, the user's heartbeat state can be monitored and the data can be sent to the controller 5, so that the controller 5 can actively control the working state of the delivery pump according to the user's heartbeat frequency.
所述储流囊4的容量为140ml左右，因为一般成人的左、右心室单次共同泵血量大概就是140ml左右，通过储液泵将储流囊4内140ml左右的液体输入或排出所述加压囊1的加压腔15，从而能够促进心脏7收缩排出或舒张吸收140ml左右的血液。The capacity of the storage bag 4 is about 140ml, because the left and right ventricles of an adult are generally pumped together at a single time of about 140ml. The compression chamber 15 of the compression bag 1 can thus promote the heart 7 to contract and discharge or diastole to absorb about 140 ml of blood.
本发明人工心脏辅助装置可以通过外科微创手术进行植入安装，具体方式为：切开心包，根据心脏7大小套上相匹配的加压囊1，并将加压囊1通过边缘与心包缝合或粘合进行固定，输送管2、输送泵3和储流囊4可安置在左侧胸腔底部；也可以输送管2穿越左侧肋间肌，输送泵3和储流囊4安置左侧胸部皮下；也可以将输送泵3、储流囊4外置体外。输送泵3自带供电电池，方便更换；也可以加压囊以及输送管、输送泵和储流囊融合一体，套在心脏的左、右心室外表面，通过线路和控制器与电源连接，线路穿越胸壁，控制器电源安置在前胸皮下。The artificial heart assist device of the present invention can be implanted and installed through minimally invasive surgery. The specific method is as follows: cut the pericardium, cover the matching pressure bag 1 according to the size of the heart 7, and suture the pressure bag 1 to the pericardium through the edge Or glue to fix, the delivery tube 2, delivery pump 3 and storage bag 4 can be placed at the bottom of the left thoracic cavity; also the delivery tube 2 can pass through the left intercostal muscle, and the delivery pump 3 and storage bag 4 can be placed on the left chest Subcutaneous; the delivery pump 3 and the fluid reservoir 4 can also be placed outside the body. The delivery pump 3 comes with its own power supply battery, which is easy to replace; it can also be integrated with the pressurized bladder, the delivery tube, the delivery pump and the storage sac, and it is set on the outer surface of the left and right ventricles of the heart, and is connected to the power supply through a circuit and a controller. Across the chest wall, the controller power supply is placed subcutaneously in the anterior chest.
作为本发明申请的其他实施例方式，也可以设置其他能够驱动加压囊1的内壁进行膨出(收缩)或凹陷(扩张)运动的驱动装置，比如机械驱动等方式，作为对本实施例中的流体驱动方式的一种补充或者替换。As other embodiments of the application of the present invention, other driving devices capable of driving the inner wall of the compression bag 1 to bulge (contract) or concave (expand) movements, such as mechanical driving, can also be provided. A supplement or alternative to fluid drive.
和现有技术相比，本发明一种人工心脏辅助装置，能够主动促进心脏收缩或舒张，使心脏恢复正常的泵血功能，改善心衰症状，延长病人寿命，具有非常重要应用价值，且结构简单，不需要切除心脏，只需要穿刺或外科小手术植入，且使用寿命长，更换方便，易为病人接受。Compared with the prior art, the artificial heart assist device of the present invention can actively promote the contraction or relaxation of the heart, restore the normal blood pumping function of the heart, improve the symptoms of heart failure, and prolong the lifespan of the patient. It is simple, does not need to remove the heart, only needs to be implanted by puncture or minor surgical operations, has a long service life, is easy to replace, and is easily accepted by patients.
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover, without departing from the inventive concept, the above-mentioned technical features or their Other technical solutions formed by any combination of equivalent features. For example, a technical solution is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.
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Application publication date: 20190628 |