Implant

An artificial implantable sphincter prosthesis for urethra and/or cuff comprising an differential pressure sensor, the differential pressure sensor comprising:

• a housing comprising a chamber;
• a sensor unit;
• a first membrane covering the chamber at a first pressure side and a second membrane covering the chamber at a second pressure side;
• wherein the chamber comprises pressure transfer device being in contact to the first and second membrane and to the sensor unit arranged within the chamber between the first and second membrane;
• wherein a sensor control unit arranged within the housing;
• wherein the sensor unit is configured to determine a pressure difference between a pressure at the first pressure side of the chamber and a pressure at the second pressure side chamber of the chamber;
• wherein the chamber extends from the first pressure side to the second pressure side through the housing and wherein the housing comprises a diaphragm separating the chamber in a first and a second part:
• wherein the diaphragm holds the sensor unit;
• wherein the first membrane comprises a first foil and wherein the second membrane comprises a second foil and wherein the chamber is covered by the first foil on the first pressure side and by the second foil on the second pressure side so as to hermetically seal the chamber;
• and
• wherein the artificial implantable sphincter prosthesis for urethra and/or the cuff comprises a fixture to be connected to a body membrane separating two different pressure sides, wherein the sensor unit determines the pressure difference between the two different pressure sides.