FEBRILE CONVULSION ALARM

• US 20080167583A1
• Filed: 01/09/2007
• Published: 07/10/2008
• Est. Priority Date: 01/09/2007
• Status: Active Grant

• Current Assignee: Izak Rozin, Ronen Meir
• Original Assignee: Izak Rozin, Ronen Meir
• Inventors: ROZIN, IZAK, MEIR, RONEN
• Granted Patent: US 7,965,833 B2
• Time in Patent Office: Days
• US Class Current: 600/595
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/1126 using a particular sensing technique
• CPC Class Codes: A61B 5/4094 Diagnosing or monitoring seizure diseases, e.g. epilepsy
• CPC Class Codes: A61B 5/681 Wristwatch-type devices

Abstract

A device and method for detecting febrile convulsions, the device including a detector for detecting motion of the device and providing an output corresponding thereto, a capacitor coupled to the detector and charged by the output of the detector, a resistor coupled to the capacitor to provide discharge of the capacitor, a comparator for comparing a voltage level of the capacitor to a reference voltage and providing a signal when the voltage level of the capacitor is greater than the reference voltage, and an indicator driven by the signal from the comparator to provide an indication of febrile convulsions.

Claims

1. A device for detecting febrile convulsions, the device comprising:

a detector for detecting motion of the device and providing an output signal corresponding thereto;

a capacitor coupled to said detector and charged by the output of said detector;

a resistor coupled to said capacitor to provide discharge of said capacitor;

a comparator for comparing a voltage level of said capacitor to a reference voltage and providing a signal when said voltage level of said capacitor is greater than said reference voltage; and

an indicator driven by said signal from said comparator to provide an indication of febrile convulsions.

2. The device according to claim 1, wherein said indicator is a buzzer, and said signal from said comparator powers an oscillator for actuating said buzzer.

3. The device according to claim 1, wherein said detector includes a tilt sensor and a mono-stable pulse detector.

4. The device according to claim 1, further comprising a battery monitor for indicating low battery power.

5. The device according to claim 1, further comprising a strap adapted and configured to be worn on a hand, said detector, capacitor, resistor, comparator and indicator being mounted on said strap.

6. The device according to claim 1, wherein said detector, capacitor, resistor, comparator and indicator are embodied in an ASIC.

7. The device according to claim 1, wherein said detector, capacitor, resistor, comparator and indicator are embodied in a Printed Circuit Board (PCB).

8. The device according to claim 1, wherein said detector, capacitor, resistor, comparator and indicator are built into a microprocessor.

9. A device for detecting febrile convulsions, the device comprising:

a tilt movement sensor for detecting motion of the device and providing an output signal corresponding thereto;

an input filter network for providing said output signal to a mono-stable pulse detector;

a capacitor coupled to said detector and charged by the output of said detector;

a resistor coupled to said capacitor to provide discharge of said capacitor;

a signal alarm level comparator for comparing a voltage level of said capacitor to a reference voltage and providing a signal when said voltage level of said capacitor is greater than said reference voltage;

a piezo buzzer driven by said signal from said comparator via an audio oscillator to provide an indication of febrile convulsions;

a small coin-type Lithium battery for providing battery power;

a battery level comparator to provide an indication of low battery power;

an LED for indicating system operation; and

an LED for indicating low battery power.

10. A method of detecting febrile convulsions, the method comprising:

detecting motion of a device and providing an output signal corresponding thereto;

charging a capacitor coupled to said detector by the output of said detector;

providing discharge of said capacitor by a resistor coupled to said capacitor;

comparing a voltage level of said capacitor to a reference voltage and providing a signal when said voltage level of said capacitor is greater than said reference voltage; and

providing an indication of febrile convulsions by means of an indicator driven by said signal from said compressor.