Motion artifact rejection microelectrode
First Claim
1. An electrode system for the measurement of biopotential signals, the system comprising:
- a substrate;
a microelectrode electrically connected to the substrate, the microelectrode comprising a plurality of conductive spikes;
an accelerometer integrally formed into the substrate;
a conductive lead connected to the substrate, the conductive lead carrying a combined signal including a biopotential from the microelectrode and an acceleration signal from the accelerometer;
a biopotential amplifier electrically connected to the conductive lead; and
an acceleration measurement circuit electrically connected to the conductive lead.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrode system for the measurement of biopotential signals includes a substrate. A microelectrode is coupled to the substrate. An accelerometer is coupled to the substrate. A biopotential amplifier is electrically coupled to the microelectrode and acceleration measurement circuit is electrically coupled to the accelerometer. A method of measuring a biopotential from a patient includes sensing a biopotential with a microelectrode. The biopotential is amplified with an amplifier in electrical communication with the microelectrode. A movement of the electrode is sensed with an accelerometer integrated with the electrode substrate. The sensed biopotential and the sensed movement are provided to an electronic controller. Portions of the sensed biopotential that correspond to sensed movement are identified as artifact contaminated portions.
12 Citations
13 Claims
-
1. An electrode system for the measurement of biopotential signals, the system comprising:
-
a substrate; a microelectrode electrically connected to the substrate, the microelectrode comprising a plurality of conductive spikes; an accelerometer integrally formed into the substrate; a conductive lead connected to the substrate, the conductive lead carrying a combined signal including a biopotential from the microelectrode and an acceleration signal from the accelerometer; a biopotential amplifier electrically connected to the conductive lead; and an acceleration measurement circuit electrically connected to the conductive lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An electrode system for the measurement of biopotential signals, the system comprising:
-
a conductive substrate; a microelectrode physically and electrically connected to the conductive substrate, the microelectrode comprising a plurality of conductive spikes; an accelerometer integrally formed into the conductive substrate; an acceleration measurement circuit electrically connected by a first lead to the accelerometer, the acceleration measurement circuit provides a high frequency supply voltage to the accelerometer; a second lead connected between the conductive substrate and the acceleration measurement circuit, the second lead carrying a combined signal including a biopotential from the microelectrode and an acceleration signal from the accelerometer; and a biopotential amplifier electrically connected to the second lead. - View Dependent Claims (12, 13)
-
Specification