Device and method for recording biopotentials in laboratory animals

Abstract

A head stage designed for non-surgical placement of EEG electrodes in small animals is disclosed. The head stage is connected to thin barbed pin electrodes of multiple lengths, such that they can be placed into the brain at the chosen depth. A miniature device comprising a wireless transmitter or data logger can be attached using magnets or connectors to the stage. When the head stage is placed on the head of a small animal and pressure is applied on the stage, the set of pin electrodes penetrate the skull, such that the stage becomes firmly fixed to the skull. Further, the device includes electrodes on its body that eliminate the need of wires for EEG recordings. When the capsule including sharp electrodes is pressed toward the skull, the electrodes penetrate the bone and fixes the capsule onto the skull for recording biopotential signals from the brain.

Dependencies are inferred from the claim text.