Method and apparatus for measuring quantities relating to a persons cardiac activity
First Claim
1. A method for measuring quantities relating to a person'"'"'s physical condition and cardiac activity, such as a person'"'"'s weight and quantities proportional to heart rate, cardiac stroke volume, and cardiac output, characterized by:
- positioning a person on a measuring support so that a blood flow pulse caused by a stroke of the heart is matched by a change in the weight;
recording the person'"'"'s weight and changes in the weight;
using time related characteristics of the recorded changes in the weight to determine information about the person'"'"'s cardiac activity including at least one of the quantities proportional to heart rate, cardiac stroke volume, and cardiac output; and
,deriving said quantity related to the person'"'"'s physical condition from said weight and said at least one of the quantities proportional to heart rate, cardiac stroke volume, and cardiac output.
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Accused Products
Abstract
A method and an apparatus for measuring quantities relating to a person'"'"'s cardiac activity, such as for example quantities proportional to heart rate, cardiac stroke volume and cardiac output. A person is positioned on a measuring support (S), so that a blood flow pulse caused by a stroke of heart is matched by a change in a person'"'"'s weight (G). Said change of weight is recorded and the recorded changes of weight are used for deriving information about a person'"'"'s cardiac activity, such as for example about stroke volume and cardiac output as well as heart rate.
144 Citations
20 Claims
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1. A method for measuring quantities relating to a person'"'"'s physical condition and cardiac activity, such as a person'"'"'s weight and quantities proportional to heart rate, cardiac stroke volume, and cardiac output, characterized by:
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positioning a person on a measuring support so that a blood flow pulse caused by a stroke of the heart is matched by a change in the weight; recording the person'"'"'s weight and changes in the weight; using time related characteristics of the recorded changes in the weight to determine information about the person'"'"'s cardiac activity including at least one of the quantities proportional to heart rate, cardiac stroke volume, and cardiac output; and
,deriving said quantity related to the person'"'"'s physical condition from said weight and said at least one of the quantities proportional to heart rate, cardiac stroke volume, and cardiac output. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for measuring variables relating to a person'"'"'s physical condition and cardiac activity, such as a person'"'"'s weight and quantities proportional to the weight, heart rate, cardiac stroke volume, and cardiac output, characterized by:
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a measuring support for positioning a person thereon, so that a blood flow pulse caused by a stroke of the heart is matched by a change in the weight; a recording device for recording the person'"'"'s weight and changes in the weight; means for deriving the quantities related to the person'"'"'s cardiac activity by utilizing time related characteristics of the recorded changes in the weight; and
,means for deriving said quantity related to the person'"'"'s physical condition from said weight and said quantities related to the person'"'"'s cardiac activity. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification