CN113577534A - Ventricular external compression auxiliary device and working method thereof - Google Patents
Ventricular external compression auxiliary device and working method thereof Download PDFInfo
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- CN113577534A CN113577534A CN202110915003.8A CN202110915003A CN113577534A CN 113577534 A CN113577534 A CN 113577534A CN 202110915003 A CN202110915003 A CN 202110915003A CN 113577534 A CN113577534 A CN 113577534A
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- displacement
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- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/191—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart mechanically acting upon the outside of the patient's native heart, e.g. compressive structures placed around the heart
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- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/515—Regulation using real-time patient data
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
- A61M2210/125—Heart
Abstract
The invention discloses an auxiliary device for ventricular external compression and a working method thereof, wherein the auxiliary device comprises: the device comprises a displacement acquisition device, a pressure acquisition device, a controller and an extraventricular pressing device; the displacement acquisition device comprises an elastic belt and a displacement sensor, a reticular structure is formed by a plurality of elastic belts which are vertically arranged along the circumferential direction, the displacement sensor is arranged on the elastic belt, and the displacement sensor is connected with the controller; the pressure acquisition device is arranged on the ventricular external pressing device and is connected with the controller; the controller is connected with the ventricular external pressing device and drives the ventricular external pressing device to act through the controller. The heart beating information during pressing is collected in real time through the displacement collecting device, acting force between the pressing device and the heart is detected in real time through the pressure sensor, and the controller receives three input signals of a displacement sensor signal, a pressure sensor signal and an external setting signal so as to drive the ventricular external pressing device to act.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an external ventricular compression auxiliary device and a working method thereof.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The ventricular assist device is a mechanical device made of artificial materials, can temporarily or permanently replace the blood pumping function of the heart, reduce the heart load, help the heart to realize blood circulation, and is an important medical means for treating heart failure and prolonging the life of patients. By classifying according to the operation mode, the ventricular assist device can be classified into a blood contact type and a non-blood contact type. The blood contact type heart pump is connected with a human body circulatory system by utilizing the principle of the pump to realize partial or whole blood pumping function, but has the problems of hemolysis, thrombus and the like, and simultaneously needs to take anticoagulant drugs for a long time. The non-blood contact type ventricular assist device mainly uses an extraventricular pressing pump and realizes the auxiliary pressing function of the ventricle through the movement of a mechanical device.
The main problem that exists of present extraventricular compression pump is that can only press with pressing the amplitude according to the assistance of pressing frequency and pressure amplitude of predetermineeing, displacement amplitude, frequency etc. when unable collection is pressing the in-process cardiac dilatation and is contracting easily cause pressing frequency and heart beat frequency mismatch to cause arrhythmia, clinical problems such as heart fibrillation threaten patient's life. Although the detection device for the heart beat is available at present, a separate device and equipment are required, and the device cannot be integrated with the existing extracardiac compression pump.
Disclosure of Invention
In order to solve the problems, the invention provides an external ventricular compression auxiliary device and a working method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an extraventricular compression assist device comprising: the device comprises a displacement acquisition device, a pressure acquisition device, a controller and an extraventricular pressing device;
the displacement acquisition device comprises an elastic belt and a displacement sensor, a reticular structure is formed by a plurality of elastic belts which are vertically arranged along the circumferential direction, the displacement sensor is arranged on the elastic belt, and the displacement sensor is connected with the controller; the pressure acquisition device is arranged on the ventricular external pressing device and is connected with the controller; the controller is connected with the ventricular external pressing device and drives the ventricular external pressing device to act through the controller.
In an alternative embodiment, the displacement acquisition device is a mesh structure matched with the heart structure, and is wrapped outside the heart through an elastic belt.
As an alternative embodiment, the displacement sensor acquires displacement amplitude and frequency signals during the heart beating through the elastic force of the elastic band, and transmits the acquired displacement amplitude and frequency signals to the controller.
As an alternative embodiment, the elastic belts comprise a circumferential elastic belt and a vertical elastic belt, and a circumferential displacement sensor is arranged on the circumferential elastic belt and used for detecting the displacement amplitude and frequency of the circumferential expansion and contraction of the heart; the vertical elastic belt is provided with a vertical displacement sensor which is arranged outside the left ventricle and the right ventricle and used for detecting the displacement amplitude and the frequency of the vertical expansion and contraction of the heart.
In an alternative embodiment, the pressure acquisition device is arranged inside the extraventricular compression device and on the contact surface with the heart, and is used for detecting the acting force between the extraventricular compression device and the heart.
In an alternative embodiment, the pressure acquisition devices are respectively arranged on at least one contact surface of the left ventricle and the right ventricle, pressure signals of the ventricular external compression device to the left ventricle and the right ventricle are respectively obtained, and the acquired pressure signals are transmitted to the controller.
In an alternative embodiment, the ventricular external pressing device comprises an actuator and a pressing device, and the controller is connected with the actuator and drives the pressing device to act through the actuator.
In a second aspect, the present invention provides a method for operating the above ventricular compression assist device, including:
respectively acquiring a displacement signal of the heart beat and a pressure signal during pressing by a displacement acquisition device and a pressure acquisition device;
the controller obtains a pressing control signal through a preset control algorithm according to the displacement signal of the heart beat, the pressure signal during pressing and an external setting signal, so as to drive the ventricular external pressing device to act.
As an alternative embodiment, the process of actuating the extraventricular compression device by the controller includes:
modeling the heart of the patient according to an external setting signal to obtain target displacement when the left ventricle contracts to the minimum and the right ventricle expands to the maximum;
obtaining a displacement signal of the last heart beat according to the displacement acquisition device, and comparing the displacement signal with the target displacement to obtain displacement error of the left ventricle and the right ventricle;
constructing a transfer matrix by taking the displacement error amount and the change rate of the displacement error amount as input quantities and taking the pressing signals of the left ventricle and the right ventricle as output quantities of a controller;
and adding a pressure regulating coefficient into the transmission matrix, and regulating the transmission matrix in real time according to a pressure signal of the pressure acquisition device so as to realize the regulation of the action of the outdoor pressing device.
As an alternative embodiment, the external setting signal comprises blood pressure, pulse history data, cardiac medical images, required pumping volume.
Compared with the prior art, the invention has the beneficial effects that:
the ventricular external compression auxiliary device provided by the invention can be used for acquiring the heart beating information during compression in real time, such as the compression amplitude, the compression frequency and the like, through the displacement acquisition device comprising the displacement sensor, and can be used for adjusting the compression amplitude and the compression frequency in real time according to the heart beating condition.
The ventricular external compression auxiliary device provided by the invention can detect the acting force between the compression device and the heart in real time through the pressure sensor, so that the compression degree of the compression device can be known in real time, and the signal of the pressure sensor is used for controlling the compression device, so that the control precision is improved, and the ventricular external compression device can better meet the physiological requirements.
The ventricular external compression auxiliary device provided by the invention has the advantages that the controller receives three input signals of the displacement sensor signal, the pressure sensor signal and the external setting signal, and a required control signal is obtained through a preset control algorithm, so that the ventricular external compression auxiliary device is driven to act, and the auxiliary compression on the left ventricle and the right ventricle is realized.
The acquired real-time data are stored in the controller, the historical data are used as reference quantity by the preset control algorithm when the controller outputs the control signal, and the more accurate control signal is obtained by the historical data and the preset intelligent algorithm.
The ventricular external compression auxiliary device provided by the invention realizes the integration of the compression device, the displacement sensor and the pressure sensor, and improves the convenience.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is an extraventricular compression assist device integrating a displacement sensor and a pressure sensor according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a displacement acquisition device provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of a pressure acquisition device provided in embodiment 1 of the present invention;
fig. 4 is a schematic view of a pressure acquisition device provided in embodiment 1 of the present invention;
fig. 5 is a control block diagram of an external ventricular compression assist device according to embodiment 2 of the present invention;
the device comprises a heart, a circumferential displacement sensor 1, a heart, a circumferential displacement sensor 2, a vertical displacement sensor 3, an elastic band 4, a controller 5 and a controller.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
As shown in fig. 1, the present embodiment provides an extraventricular compression assist device integrating a displacement sensor and a pressure sensor, including: the device comprises a displacement acquisition device, a pressure acquisition device, a controller and an extraventricular pressing device; the displacement acquisition device comprises an elastic belt 4 and a displacement sensor, a plurality of elastic belts 4 which are vertically arranged along the circumferential direction form a net structure, the displacement sensor is arranged on the elastic belt 4, and the displacement sensor is connected with a controller 5; the pressure acquisition device is arranged on the ventricular external pressing device and is connected with the controller; the controller is connected with the ventricular external pressing device and drives the ventricular external pressing device to act through the controller.
Specifically, as shown in fig. 2, the displacement acquisition device is a net structure, the net structure of which matches with the heart structure and is wrapped outside the heart by an elastic band 4;
it can be understood that, in the present embodiment, the displacement acquisition device of the mesh structure can acquire images by means of CT and the like according to the heart size and lesion condition of the patient, and is independently designed for each patient condition, so as to realize the attachment between the elastic band 4 and the heart 1; meanwhile, the displacement sensor arranged on the elastic belt can also perform self-adaptive adjustment of the installation position according to the actual heart condition of the patient.
In the embodiment, the displacement sensor measures the displacement amplitude and frequency of the heart during beating through the elastic force in the elastic band.
In this embodiment, the elastic band 4 includes a circumferential elastic band and a vertical elastic band, and the circumferential elastic band is provided with a circumferential displacement sensor 2 for detecting the displacement amplitude and frequency of the circumferential expansion and contraction of the heart;
the vertical displacement sensor 3 is arranged on the vertical elastic belt, is arranged outside the left ventricle and the right ventricle and is used for detecting the displacement amplitude and the frequency of the vertical expansion and contraction of the heart;
the circumferential direction and the vertical direction can both contain a plurality of elastic bands, and each elastic band comprises a plurality of displacement sensors, so that the displacement amplitude and the frequency of ventricular beats can be recorded in more detail.
In this embodiment, it is preferable that each direction includes at least two elastic bands and one displacement sensor.
In this embodiment, the displacement sensor is powered by the controller 5 and transmits the collected displacement signal to the controller 5 through a data line.
In this embodiment, the pressure acquisition device includes a pressure sensor, and the pressure sensor is disposed inside the extraventricular compression device and on a contact surface with the heart, and is configured to detect an acting force between the extraventricular compression device and the heart in real time.
The pressure sensors are arranged between the heart and the external ventricular pressing devices, fixed on the external ventricular pressing devices, and at least arranged on the contact surfaces of the left ventricle and the right ventricle respectively to obtain the pressing force of the external ventricular pressing devices on the left ventricle and the right ventricle, as shown in fig. 3;
it will be appreciated that a plurality of pressure sensors may be disposed on the left and right ventricular contact surfaces to obtain different pressure levels, and thus a more detailed spatial distribution of the pressure levels, as shown in fig. 4.
In this embodiment, the pressure sensor is powered by the controller and transmits the collected pressure signal to the controller via the data line.
In this embodiment, the extraventricular compression device includes a compression device and an actuator, the compression device includes but is not limited to mechanical compression and pneumatic compression, and the actuator is different according to different compression devices; when the pressing device is a mechanical pressing device, the driver is a motor, and when the pressing device is a pneumatic pressing device, the driver is an air pump and a pressure controller.
It should be noted that the extraventricular pressing device is not an improvement point of the present application, and the conventional pressing device may be adopted, so that the detailed description thereof is omitted.
In the embodiment, the pressure sensor is arranged on the inner side of the pressing device, the pressing device is connected with the driver, and the driver is connected with the controller;
the working principle is as follows: the pressing device is powered by an external driver, the controller controls the driver according to the determined pressing amplitude and frequency, the driver drives the pressing device, extrusion and relaxation actions are realized through deformation of the pressing device, pressing of left and right ventricles is realized through contact of the pressing device and the heart, meanwhile, pressure in the pressing process is collected through the pressure sensor, and displacement amplitude and frequency of heart pulsation are collected through the displacement sensor.
It will be appreciated that the compression device may be designed as a mesh structure of matching dimensions according to the size of the heart of the patient, with the pressure sensor being arranged between the compression device and the heart.
In the embodiment, through a control algorithm pre-stored in the controller, the pulsation parameters of the left ventricle and the right ventricle of the heart, including the information of the amplitude, the frequency and the amount of pumped blood of the left ventricle and the right ventricle pulsation, are obtained according to the signals of the displacement sensor; obtaining the acting force between the pressing device and the heart according to the signal of the pressure sensor; and calculating the heart failure degree by combining the heart beating parameters, obtaining the relation of the change of the pressing amplitude of the next beating of the ventricle along with time through the combination of the setting signal and the information, and outputting a corresponding control signal to a driver of the pressing device.
Example 2
As shown in fig. 5, the present embodiment provides a working method of the above ventricular compression assist device, which includes the following steps:
the displacement sensor is connected with the controller, and transmits the collected displacement amplitude and frequency signals of the heart during beating to the controller through a signal line;
the pressure sensor is connected with the controller, and transmits the acquired pressure signal to the controller, and the pressure signal represents the acting force of the pressing device on the heart;
meanwhile, the medical staff receives an external setting signal, and the external setting signal is a signal for adjusting the ventricular assist device according to the condition of the patient, can be preset and can be adjusted and input in real time according to the condition of the patient;
the controller obtains a required control signal through a preset controller algorithm according to the displacement amplitude and frequency of the left and right ventricular beats, the pressure signal and an external setting signal, outputs the control signal to the driver, and generates a driving force by the driver so as to drive the pressing device to realize the pressing action.
In this embodiment, the control algorithm preset in the controller is specifically as follows:
modeling the heart of the patient according to the input setting signal; the setting signals comprise the blood pressure of the patient, historical data of pulse, heart medical images, heart failure degree, blood pumping amount and the like, and can comprise but do not need to comprise real-time blood pressure and pulse signals of the patient;
obtaining the displacement of the left ventricle with the minimum contraction and the maximum diastole as a target displacement according to the pump blood volume and the cardiac medical image required by the patient;
obtaining the amplitude and frequency of the last heart beat according to the displacement signal of the displacement sensor, and comparing the amplitude and frequency with a target displacement to obtain displacement error quantities of the left ventricle and the right ventricle;
constructing a transfer matrix by taking the displacement error amount and the change rate of the displacement error amount as input quantities and taking the pressing signals of the left ventricle and the right ventricle as output quantities of a controller;
and adding a pressure adjusting coefficient to each item in the transfer matrix, and adjusting the transfer matrix in real time according to the numerical value of the pressure sensor so as to realize the adjustment of the pressing device.
It will be appreciated that the parameters in the transfer matrix are determined by the patient physiology and heart failure, and are input to the controller prior to use, with the parameters also being modified during operation as needed.
It can be understood that the external setting signal in this embodiment can be modified at any time, or can be set for a long time, so as to adapt to various acute or chronic disease conditions, and can be adjusted according to the actual needs of the patient, so that the application range is wider.
It can be understood that, in the embodiment, the obtained real-time data is stored in the controller, and when the controller outputs the control signal, the preset control algorithm takes the historical data as a reference amount, and a more accurate control signal is obtained through the historical data and the preset intelligent algorithm.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. An extraventricular compression assist device, comprising: the device comprises a displacement acquisition device, a pressure acquisition device, a controller and an extraventricular pressing device;
the displacement acquisition device comprises an elastic belt and a displacement sensor, a reticular structure is formed by a plurality of elastic belts which are vertically arranged along the circumferential direction, the displacement sensor is arranged on the elastic belt, and the displacement sensor is connected with the controller; the pressure acquisition device is arranged on the ventricular external pressing device and is connected with the controller; the controller is connected with the ventricular external pressing device and drives the ventricular external pressing device to act through the controller.
2. A ventricular assist device as claimed in claim 1, wherein the displacement acquisition device is a mesh structure matching the heart structure and wrapped around the outside of the heart by an elastic band.
3. A ventricular external compression assist device as claimed in claim 1, wherein the displacement sensor obtains displacement amplitude and frequency signals of the heart during beating through the elastic force of the elastic band, and transmits the collected displacement amplitude and frequency signals to the controller.
4. A ventricular external compression assist device as claimed in claim 1, wherein the elastic band includes a circumferential elastic band and a vertical elastic band, and a circumferential displacement sensor is disposed on the circumferential elastic band for detecting the displacement amplitude and frequency of circumferential expansion and contraction of the heart; the vertical elastic belt is provided with a vertical displacement sensor which is arranged outside the left ventricle and the right ventricle and used for detecting the displacement amplitude and the frequency of the vertical expansion and contraction of the heart.
5. A ventricular extraventricular compression assist device as claimed in claim 1, wherein the pressure acquisition device is disposed inside the ventricular extraventricular compression device and on the interface with the heart for detecting the force between the ventricular extraventricular compression device and the heart.
6. A ventricular assist device as claimed in claim 5, wherein the pressure pick-up device is disposed at least one on each of the left and right ventricular contact surfaces to obtain pressure signals of the ventricular press-down device to the left and right ventricles, respectively, and transmit the pressure signals to the controller.
7. A ventricular external compression assist device as claimed in claim 1, wherein the ventricular external compression device includes an actuator and a compression device, and the controller is connected to the actuator to actuate the compression device via the actuator.
8. A method of operating an extra-ventricular compression assist device as claimed in any one of claims 1-7, comprising:
respectively acquiring a displacement signal of the heart beat and a pressure signal during pressing by a displacement acquisition device and a pressure acquisition device;
the controller obtains a pressing control signal through a preset control algorithm according to the displacement signal of the heart beat, the pressure signal during pressing and an external setting signal, so as to drive the ventricular external pressing device to act.
9. A method for operating an extra-ventricular compression assist device as claimed in claim 8, wherein the act of actuating the extra-ventricular compression device by the controller includes:
modeling the heart of the patient according to an external setting signal to obtain target displacement when the left ventricle contracts to the minimum and the right ventricle expands to the maximum;
obtaining a displacement signal of the last heart beat according to the displacement acquisition device, and comparing the displacement signal with the target displacement to obtain displacement error of the left ventricle and the right ventricle;
constructing a transfer matrix by taking the displacement error amount and the change rate of the displacement error amount as input quantities and taking the pressing signals of the left ventricle and the right ventricle as output quantities of a controller;
and adding a pressure regulating coefficient into the transmission matrix, and regulating the transmission matrix in real time according to a pressure signal of the pressure acquisition device so as to realize the regulation of the action of the outdoor pressing device.
10. A method as recited in claim 9, wherein the external setting signal comprises blood pressure, pulse history data, medical images of the heart, and desired pumping volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110915003.8A CN113577534A (en) | 2021-08-10 | 2021-08-10 | Ventricular external compression auxiliary device and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110915003.8A CN113577534A (en) | 2021-08-10 | 2021-08-10 | Ventricular external compression auxiliary device and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053129A (en) * | 2021-12-02 | 2022-02-18 | 中国医学科学院阜外医院 | Anti-drop type heart outdoor push type heart auxiliary device |
| CN114377288A (en) * | 2021-12-21 | 2022-04-22 | 中国医学科学院阜外医院 | Method for synchronously jumping along with heart for ventricular external pressing type heart auxiliary device |
-
2021
- 2021-08-10 CN CN202110915003.8A patent/CN113577534A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114053129A (en) * | 2021-12-02 | 2022-02-18 | 中国医学科学院阜外医院 | Anti-drop type heart outdoor push type heart auxiliary device |
| CN114377288A (en) * | 2021-12-21 | 2022-04-22 | 中国医学科学院阜外医院 | Method for synchronously jumping along with heart for ventricular external pressing type heart auxiliary device |
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