Substitute-heart control apparatus
First Claim
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1. A substitute-heart control apparatus for controlling a substitute heart provided in a living body, comprising:
- an information obtaining device which non-invasively obtains, from the living body, physical information relating to blood circulation in the living body; and
a control device which supplies, to the substitute heart, a control signal to control a cardiac output that is a volume of blood outputted from the substitute heart per unit time, based on the physical information obtained by the information obtaining device, according to a predetermined relationship between cardiac output and physical information,wherein the predetermined relationship between cardiac output and physical information comprises a relationship which is predetermined based on a cardiac output of the natural heart of the living body, and the physical information non-invasively obtained by the information obtaining device before the natural heart of the living body is substituted by the substitute heart.
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Abstract
A substitute-heart control apparatus for controlling a substitute heart provided in a living body, including an information obtaining device which non-invasively obtains, from the living body, physical information relating to blood circulation in the living body, and a control device which supplies, to the substitute heart, a control signal to control a cardiac output that is a volume of blood outputted from the substitute heart per unit time, based on the physical information obtained by the information obtaining device, according to a predetermined relationship between cardiac output and physical information.
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Citations
11 Claims
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1. A substitute-heart control apparatus for controlling a substitute heart provided in a living body, comprising:
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an information obtaining device which non-invasively obtains, from the living body, physical information relating to blood circulation in the living body; and a control device which supplies, to the substitute heart, a control signal to control a cardiac output that is a volume of blood outputted from the substitute heart per unit time, based on the physical information obtained by the information obtaining device, according to a predetermined relationship between cardiac output and physical information, wherein the predetermined relationship between cardiac output and physical information comprises a relationship which is predetermined based on a cardiac output of the natural heart of the living body, and the physical information non-invasively obtained by the information obtaining device before the natural heart of the living body is substituted by the substitute heart. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A substitute-heart control apparatus for controlling a substitute heart provided in a living body, comprising:
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an information obtaining device which non-invasively obtains, from the living body, physical information relating to blood circulation in the living body; and a control device which supplies, to the substitute heart, a control signal to control a cardiac output that is a volume of blood outputted from the substitute heart per unit time, based on the physical information obtained by the information obtaining device, according to a predetermined relationship between cardiac output and physical information, wherein the predetermined relationship between cardiac output and physical information comprises a relationship between fluctuations of heart rate and physical information which is obtained by learning fluctuations of heart rate of the natural heart of the living body, and the physical information obtained before the natural heart of the living body is substituted by the substitute heart, wherein the control device comprises a heart-rate control device which supplies, to the substitute heart, the control signal to cause fluctuations of heart rate of the substitute heart, based on the physical information obtained by the information obtaining device, according to the relationship between fluctuations of heart rate and physical information, wherein the heart-rate control device comprises a neural network which learns a plurality of constants of a function based on the fluctuations of heart rate of the natural heart of the living body, and the physical information obtained before the natural heart of the living body is substituted by the substitute heart, the function defining the relationship between fluctuations of heart rate and physical information, the neural network generating, as an output therefrom, the control signal to cause the fluctuations of heart rate of the substitute heart, based on the physical information obtained by the information obtaining device, as an input signal thereto, according to the function having the learned constants.
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9. A substitute-heart system comprising:
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a total-substitution artificial heart which is adapted to be provided in a living body to totally substitute the natural heart of the living body; and a control apparatus which controls the total-substitution artificial heart, the control apparatus comprising; an information obtaining device which non-invasively obtains, from the living body, physical information relating to blood circulation in the living body, and a control device which supplies, to the total-substitution artificial heart, a control signal to control a cardiac output that is a volume of blood outputted from the artificial heart per unit time, based on the physical information obtained by the information obtaining device, according to a predetermined relationship between cardiac output and physical information. - View Dependent Claims (10, 11)
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Specification