Foot pressure monitor
OwnerMohammed A. Hajianpourinventor
Life of this patent
Estimating the term…
Abstract
Apparatus is configured to provide an alarm perceivable by a user when an increase in a level of force applied to a foot exceeds a threshold value determined by a variable resistance. The level of force is determined from a pressure established within a transducer in an insole placed, for example, within the shoe of the user. This pressure is converted into an electrical signal within a pressure transducer within a control box. This electrical signal charges a capacitor to produce a voltage which is compared with a voltage level corresponding to the threshold value. The result of this comparison is used to determine when the alarm is provided.
Claims9
Apparatus for providing an alarm when an increase in a level of force applied to a foot exceeds a threshold value, wherein said apparatus comprises:
- an insole, for placement inside a shoe, including a first transducer producing a first signal varying in response to a level of force applied to an upper surface of said insole;
- a second transducer, generating a second signal in response to said first signal;
- an alarm generating a perceivable signal in response to said second signal;
- and
- coupling means having a time constant, connecting said second signal to said alarm, so that said alarm responds to rapid changes in said second signal while ignoring gradual changes in said second signal.
Dependencies are inferred from the claim text.