Apparatus in medicine for the monitoring and or recording of the body movements of a person on a bed, for instance of a patient
First Claim
1. An apparatus for monitoring the movements of a person on a bed or the changes therein, such movements including epileptic convulsive seizures, other deviant movements, tremors, respiration, mechanical cardiac functions, or any other motorics of the person under examination, without attaching a pick-up means directly to the person, said apparatus comprising:
- (a) an active layer;
(b) an antenna means;
(c) an amplifying means connected to said antenna means; and
(d) a monitoring means connected to said amplifying means;
wherein said active layer comprises at least two mutually contacting courses of insulating material having different dielectric constants adapted so that an electrical charge is generated in said layer by relative movement between said contacting courses; and
wherein said antenna means is adapted to detect electrical charge generated within said active layer, resulting in an electrical signal being conveyed from said antenna means to the amplifying means and amplified therewith, said amplified signal being conveyed to the monitoring means and converted into a visual, auditory or mechanical signal therewith.
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Accused Products
Abstract
A capacitive motion sensor placed under a mattress or the like for monitoring the movements of a person. The sensor uses an active layer consisting of two courses of dielectric material placed in contact with one another. Movements of a person on top of the mattress cause the courses to move relative to one another, thereby generating an electric change in the active layer which is detected by a pair of spaced elements which form a capacitive antenna means.
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Citations
11 Claims
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1. An apparatus for monitoring the movements of a person on a bed or the changes therein, such movements including epileptic convulsive seizures, other deviant movements, tremors, respiration, mechanical cardiac functions, or any other motorics of the person under examination, without attaching a pick-up means directly to the person, said apparatus comprising:
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(a) an active layer; (b) an antenna means; (c) an amplifying means connected to said antenna means; and (d) a monitoring means connected to said amplifying means; wherein said active layer comprises at least two mutually contacting courses of insulating material having different dielectric constants adapted so that an electrical charge is generated in said layer by relative movement between said contacting courses; and
wherein said antenna means is adapted to detect electrical charge generated within said active layer, resulting in an electrical signal being conveyed from said antenna means to the amplifying means and amplified therewith, said amplified signal being conveyed to the monitoring means and converted into a visual, auditory or mechanical signal therewith. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification