Apparatus and method for mechanical stimulation of nerves

摘要

An improved method and apparatus for mechanical stimulation of nerves to evoke reflexive response, particularly sacral reflex latentency, comprises a hammer (30) having opposite distal and proximal ends. A normally open switch (36) with an extending switch arm (38 ) is mounted on the distal end of the handle (32) and positioned to close upon impact. The switch (36) is adapted for connection to an electromyograph. The switch (36) is preferably partially recessed within an enlargement (40) of the distal end of the handle (32). The switch (36) closes in response to tapping on the patient with the hammer (30) to effect manual stimulation and trigger recording of the reflexive response sensed via an electrode (26).