Patent ID: 8408067

Claim:
A pressure-sensor device that comprises: a pressure sensor ( 9 ) having a sensor body ( 9 a ), in particular of a monolithic type, in which a cavity ( 11 ) is defined having a bottom surface ( 11 a ) and a peripheral surface ( 11 b ), said bottom surface ( 11 a ) belonging to a membrane portion ( 9 ′) of said sensor body ( 9 a ), a detection element (R), being operatively associated to said membrane portion ( 9 ′); a connection structure ( 2 , 3 ) having a duct ( 2 a , 15 , 19 ) in communication with said cavity ( 11 ), designed to receive a fluid, a pressure of which is to be detected, said structure ( 2 , 3 ) comprising: a supporting body ( 2 ) of the pressure sensor ( 9 ), defining at least one respective passage ( 2 a ); and a compressible element ( 12 ) that is designed to be in contact with said fluid and is configured for compensating possible variations of volume thereof; said compressible element ( 12 ) being positioned at least in part within said cavity ( 11 ), wherein the device comprises connection means ( 12 f ; 12 g ) for setting in fluid communication, or for equilibrating in pressure, different regions of said cavity ( 11 ), characterized in that the connection means ( 12 f ; 12 g ) are formed at least in part in said compressible element ( 12 ), or in said sensor body ( 9 a ), or in said supporting body ( 2 ).