Method for preparing a ballistocardiogram
First Claim
1. A method for preparing a ballistocardiogram of a human subject comprising the steps of:
- placing the human subject in a supine position on a substantially rigid body mold which is mounted for motion in response to the heartbeat of the subject, the body mold having an impression intimately matching the entire length of the dorsal portion of the subject'"'"'s body and keeping the subject'"'"'s body stationary relative to the mold and with respect to a given direction;
connecting a motion transducer to the body mold for permitting the transducer to respond to motion of the mold in the given direction; and
recording the output from the motion transducer over a period of time.
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Accused Products
Abstract
Disclosed is a system, apparatus and method for gathering physiological data. Basic to the system of the present invention is a rigid body mold having preferably a negative impression of the dorsal half of the body. By connecting and/or embedding sensors to the body mold at specific locations, e.g., accelerometers, thermistors, and electrocardiogram electrodes, the sensors will be accurately and reproducibly positioned next to a specific body location each time the subject lies in the body mold. The body mold can be used to insulate the body from external motions thereby facilitating the preparation of a ballistocardiogram. The exact re-positioning of the body in the mold allows exact determination of the center of gravity in the horizontal plane of the body.
44 Citations
7 Claims
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1. A method for preparing a ballistocardiogram of a human subject comprising the steps of:
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placing the human subject in a supine position on a substantially rigid body mold which is mounted for motion in response to the heartbeat of the subject, the body mold having an impression intimately matching the entire length of the dorsal portion of the subject'"'"'s body and keeping the subject'"'"'s body stationary relative to the mold and with respect to a given direction; connecting a motion transducer to the body mold for permitting the transducer to respond to motion of the mold in the given direction; and recording the output from the motion transducer over a period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification