CN210331245U - Single saccule counterpulsation type left heart auxiliary device - Google Patents
Single saccule counterpulsation type left heart auxiliary device Download PDFInfo
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- CN210331245U CN210331245U CN201920627691.6U CN201920627691U CN210331245U CN 210331245 U CN210331245 U CN 210331245U CN 201920627691 U CN201920627691 U CN 201920627691U CN 210331245 U CN210331245 U CN 210331245U
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Abstract
The utility model provides a single balloon counterpulsation type left heart auxiliary device, which comprises a balloon, a catheter, a micropump 1, a micropump 2, a control system, an electrocardio sensor and a fluid source; the sacculus is placed in the left ventricle, the sacculus is communicated with one end of the catheter, the other end of the catheter is communicated with the micro pump 1 and the micro pump 2, and the micro pump 1 and the micro pump 2 are communicated with a fluid source. The utility model relates to a single sacculus counterpulsation formula left heart auxiliary device has and implants simply, and the patient resumes fast and cost economy's characteristics, can replace patient's left ventricle function fast, helps improving organ functions such as brain, heart and terminal vascular perfusion, improves human metabolism level.
Description
Technical Field
The utility model belongs to the field of medical equipment, especially, relate to a single sacculus counterpulsation formula left heart auxiliary device.
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 lack of heart donors is serious, and the problems of rejection, infection and other secondary diseases are faced, and the development of the left heart assist device is gradually becoming an important way to solve the serious heart failure.
The development of the left heart auxiliary device mainly goes through three stages, the first generation is a bionic pulsating pump, a diaphragm blood pump is driven pneumatically or electrically to generate pulsating blood flow, the bionic pulsating pump is often used for transition treatment before transplantation, but the bionic pulsating pump has the defects of large volume, high noise, high infection, easy tearing of blood pump intima, easy valve aging and the like, the life quality of a patient is seriously influenced, and sometimes fatal complications can occur. The second generation left ventricle auxiliary device has smaller volume, lower infection incidence and obviously reduced noise, and can obviously improve the quality of life. The third generation left ventricle auxiliary device further reduces the volume of the artificial blood pump, adopts the magnetic suspension technology, has better hemodynamic characteristics, and can reduce bleeding and thrombotic complications. However, the existing left heart auxiliary devices have the problems of complex implantation, high manufacturing cost and long recovery time of patients.
Disclosure of Invention
In view of this, the utility model aims at providing a single sacculus counterpulsation formula left heart auxiliary device has and implants simply, and the patient recovers fast and cost economy's characteristics, can replace patient's left ventricle function fast, helps improving organ functions such as brain, heart and the perfusion of terminal blood vessel, improves human metabolism level.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a single-balloon counterpulsation type left heart auxiliary device comprises a balloon, a catheter, a micropump 1, a micropump 2, a control system, an electrocardio sensor and a fluid source; the sacculus is placed in the left ventricle, the sacculus is communicated with one end of the catheter, the other end of the catheter is communicated with the micro pump 1 and the micro pump 2, and the micro pump 1 and the micro pump 2 are communicated with a fluid source.
The micro pump 1 pumps fluid from a fluid source into the balloon, and the micro pump 2 pumps the fluid from the balloon back into the fluid source; the electrocardio sensor is connected with a signal receiving end of the control system and acquires human body physiological electric signals of human epidermis; the control system controls the micro pump 1 and the micro pump 2 to pump out or pump in the fluid source into the saccule according to the physiological signals of the human body collected by the electrocardio sensor.
Further, a pump 1 signal output end of the control system is connected with a pump 1 signal input end of the micro pump 1.
Further, the signal output end of the pump 2 of the control system is connected with the signal input end of the pump 2 of the micro pump 2.
Further, the fluid source is a source of gas fluid or a source of liquid fluid.
Furthermore, the saccule is made of blood compatible materials, and the catheter is made of blood compatible materials.
Compared with the prior art, the utility model relates to a single sacculus counterpulsation formula left heart auxiliary device has following advantage:
the utility model relates to a single sacculus counterpulsation formula left heart auxiliary device has following advantage: firstly, the single-balloon counterpulsation type left heart auxiliary device can be implanted through the apex of the heart, the interatrial septum, the aortic valve or the coronary sinus, and has the characteristic of simple implantation; secondly, the single-balloon counterpulsation type left heart auxiliary device has no mechanical damage to blood; thirdly, the single balloon counterpulsation type left heart auxiliary device has low use economic cost.
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 the single balloon counterpulsation type left heart assist device of the present invention;
FIG. 2 is a schematic view of the single balloon counterpulsation type left heart assist device of the present invention;
fig. 3 is an explanatory diagram of a single-balloon counterpulsation type left heart assist device according to an embodiment of the present invention.
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 fig. 1-2, a single balloon counterpulsation type left heart assist device comprises a balloon, a catheter, a micropump 1, a micropump 2, a control system, an electrocardio sensor and a fluid source; the sacculus is placed in the left ventricle, the sacculus is communicated with one end of the catheter, the other end of the catheter is communicated with the micro pump 1 and the micro pump 2, and the micro pump 1 and the micro pump 2 are communicated with a fluid source.
The micro pump 1 pumps fluid from a fluid source into the balloon, and the micro pump 2 pumps the fluid from the balloon back into the fluid source; the electrocardio sensor is connected with a signal receiving end of the control system and acquires human body physiological electric signals of human epidermis; the control system controls the micro pump 1 and the micro pump 2 to pump out or pump in the fluid source into the saccule according to the physiological signals of the human body collected by the electrocardio sensor.
As shown in fig. 2, the pump 1 signal output of the control system is connected to the pump 1 signal input of the micro-pump 1.
As shown in fig. 2, the pump 2 signal output of the control system is connected to the pump 2 signal input of the micro-pump 2.
As shown in fig. 1, the fluid source is a source of gas fluid or a source of liquid fluid.
As shown in fig. 1, the balloon is a blood-compatible balloon, and the catheter is a blood-compatible catheter.
The electrocardio sensor collects human body physiological electric signals of human body epidermis; the control system controls the micro pump to pump out or pump the fluid in the fluid source into the saccule according to the physiological signals of the human body collected by the electrocardio sensor.
The fluid in the fluid source may be carbon dioxide gas or saline, etc. The electrocardio sensor is directly stuck on the epidermis of a human body, such as the pulse position of a hand and the like.
In this embodiment, the balloon can be implanted into the left ventricle via the apex, interatrial septum, aortic valve or coronary sinus, as shown in fig. 1, and the balloon functions as the left ventricle to squeeze blood from the left ventricle into the blood vessel of the human body, thereby ensuring that the blood flows to the whole body. The electrocardio sensor is arranged on the epidermis of a human body, such as the pulse position of a hand, an obtained electrocardio signal is transmitted to the control system, and the control system outputs a control signal to the micro pump 1 or the micro pump 2 to realize the filling or the emptying of the saccule, thereby assisting in realizing the function of the left ventricle.
In this embodiment:
as shown in fig. 3, the processor module is the STM32F103ZET6 processor.
As shown in FIG. 3, the signal output terminal of the electrocardio-sensor is connected with the ADC123_ INx definition pin of the STM32F103ZET6 processor.
As shown in FIG. 3, the power module 3.3V output is connected to the VDD pin and the VDDA pin of the STM32F103ZET6 processor, respectively.
As shown in FIG. 3, the PWM interface of micropump 1 is connected to TIM2_ CH2 definition pin of STM32F103ZET6 processor.
As shown in FIG. 3, the PWM interface of the micropump 2 is connected to the TIM3_ CH2 definition pin of the STM32F103ZET6 processor.
As shown in FIG. 3, the inlet of the micro-pump 1 is connected with the balloon through a catheter, and the outlet of the micro-pump 2 is connected with the balloon through a catheter.
As shown in fig. 3, the power module is a YS-5D3312H type dual output power supply.
In the embodiment, in diastole of a heart chamber, the STM32F103ZET6 processor receives a signal acquired by the electrocardiosensor, and sends a PWM control signal to the micropump 1 through a TIM2_ CH2 definition pin, at this time, fluid in the air bag is sucked into an inlet of the micropump 1 and is discharged into a fluid source through an outlet, at this time, the air bag is emptied, and blood flows into the left ventricle; during systole, the STM32F103ZET6 processor sends a PWM control signal to the micro-pump 2 through the TIM3_ CH2 defining pin, at which time the micro-pump 2 inlet draws fluid from the fluid source and discharges it through the outlet into the balloon, inflating the balloon, flowing blood in the left ventricle into the aorta and then throughout the body. 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 (5)
1. A single saccule counterpulsation type left heart auxiliary device is characterized in that: comprises a sacculus, a catheter, a micro pump 1, a micro pump 2, a control system, an electrocardio sensor and a fluid source; the saccule is placed in a left ventricle, the saccule is communicated with one end of the catheter, the other end of the catheter is communicated with the micropump 1 and the micropump 2, and the micropump 1 and the micropump 2 are communicated with the fluid source;
the micropump 1 pumps fluid from the fluid source into the balloon, and the micropump 2 pumps fluid from the balloon back into the fluid source; the electrocardio sensor is connected with a signal receiving end of the control system and acquires human physiological electric signals of human epidermis; the control system controls the micro pump 1 and the micro pump 2 to pump the fluid in the fluid source into or out of the saccule according to the physiological signals of the human body collected by the electrocardio sensor.
2. The single balloon counterpulsation type left heart assist device according to claim 1, wherein: and the signal output end of the pump 1 of the control system is connected with the signal input end of the pump 1 of the micro pump 1.
3. The single balloon counterpulsation type left heart assist device according to claim 1, wherein: and the signal output end of the pump 2 of the control system is connected with the signal input end of the pump 2 of the micro pump 2.
4. The single balloon counterpulsation type left heart assist device according to claim 1, wherein: the fluid source is a source of gas fluid or a source of liquid fluid.
5. The single balloon counterpulsation type left heart assist device according to claim 1, wherein: the sacculus is the sacculus of blood compatibility material, the pipe is the pipe of blood compatibility material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920627691.6U CN210331245U (en) | 2019-05-05 | 2019-05-05 | Single saccule counterpulsation type left heart auxiliary device |
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| CN201920627691.6U CN210331245U (en) | 2019-05-05 | 2019-05-05 | Single saccule counterpulsation type left heart auxiliary device |
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| CN210331245U true CN210331245U (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966575A (en) * | 2019-05-05 | 2019-07-05 | 北京安生生物技术有限责任公司 | A kind of single saccule counterpulsation formula left ventricular assist device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109966575A (en) * | 2019-05-05 | 2019-07-05 | 北京安生生物技术有限责任公司 | A kind of single saccule counterpulsation formula left ventricular assist device |
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