Device and method for locating an anatomical cavity in a body

摘要: The invention describes a device ( 1 ) for locating an anatomical cavity 15 inside body 10 ). comprises fluid-filled reservoir 30 which is closed off in sealed manner by displaceable plunger 32 and connected to hollow puncture needle 20 To measure the pressure prevailing fluid, gauge 40 A signal converter 50 used convert continuous pressure-measurement provided into form suitable further processing. synthesizer 60 designed process converted sound representative of pressure. If, during displacement ), point 21 reaches result readily perceptible change signal. recording means over course time.