A wireless biopotential sensor includes an adhesive strip having a lower surface for placement against the skin of a patient and an upper surface. A pair of conductive electrodes are applied to the lower surface of the adhesive strip. A sensor substrate is applied to the upper surface. The sensor substrate includes first and second conductive contact pads that are placed in registry with the pair of conductive electrodes, with the contact pads arranged in electrical contact with the conductive electrodes. An electronics module is applied to the sensor substrate and arranged in electrical contact with the contact pads. The electronics module comprises a power supply and electronics for generating a wireless signal containing biopotential signals detected by the pair of conductive electrodes.
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1. A wireless biopotential sensor, comprising:
- an adhesive strip having a lower surface for placement against the skin of a patient and an upper surface;
- a pair of conductive electrodes applied to said adhesive strip for detecting biopotential signals, the conductive electrodes comprising elongate strips of conductive material wrapped around said adhesive strip and separated from each other by a distance;
- a sensor substrate applied to said upper surface of said adhesive strip, said sensor substrate carrying first and second conductive contact pads placed in registry with said pair of conductive electrodes such that said contact pads are in electrical contact with said conductive electrodes;
- an electronics module applied to said sensor substrate and in electrical contact with said contact pads, said electronics module comprising a power supply and electronics for generating a wireless signal containing biopotential signals detected by said pair of conductive electrodes.
2. The sensor of claim 1, wherein said adhesive strip comprises a flexible, double sided adhesive tape.
3. Ta sensor of claim 1, further comprising a flexible protective tape applied to said lower surface of said adhesive strip.
4. The sensor of claim 1, further comprising a flexible strip attached to said sensor module and a reference vol age electrode supplying a reference voltage to said electronics module, said reference voltage electrode being positioned at the end of said flexible strip.
5. T e sensor of claim 4, wherein said flexible strip further comprises an adhesive material for connecting said end of said flexible strip to the patient.
6. T e sensor of claim 1, wherein said sensor is adapted for measuring an electromyography signal from a human patient.
7. An electromyography signal acquisition system comprising a plurality of bio-potential sensors as recited in claim 1, wherein said electronics module transmits said wireless signals, and further comprising a base unit for receiving said wireless signals from said bio-potential sensors.
8. The sensor of claim 1, further comprising DIP switch for enabling a user of said sensor to select an identification number for said sensor, wherein the identification number selected by said user with said DIP switch is encoded with said wireless signal by said electronics module.