Apparatus for monitoring clinically significant surface movements in living organisms

摘要

Apparatus for detecting movement of an external or internal surface portion of a living organism (24) comprises a conductive loop (12) dimensioned for disposition on the surface portion for movement therewith, and means for generating a signal indicative of the inductance of the loop (12), changes in the signal being indicative of the extent of movement of the surface portion. The apparatus may be used to measure intrapleural pressure on a non-invasive basis.