A pressure catheter for monitoring changes in pressure within the body is comprised of an outer tube containing a fluid channel and a closed air column having a pressure-compliant member which is deformable upon an increase in pressure. A change in pressure deforms the pressure-compliant member, which...http://www.google.fr/patents/US5951497?utm_source=gb-gplus-shareBrevet US5951497 - Pressure catheter device with enhanced positioning features
Pressure catheter device with enhanced positioning features