In-situ sensor

An in-situ sensor for being implanted within tissue of a mammal, the in-situ sensor comprising:

• an energy harvesting portion;
• a communication portion;
• a pressure sensor configured to provide, at a first time, a first measurement of interstitial pressure of surrounding tissue when located within tissue, and to provide, at a second time later than the first time, a second measurement of interstitial pressure of the surrounding tissue;
• a further sensor selected from a group comprising a pH sensor, a lactate sensor, an impedance sensor, a radiation sensor, a temperature sensor, or a sensor for bioelectrical potentials;
• and
• a controller coupled to the energy harvesting portion, the communication portion, the pressure sensor, and the further sensor,
• wherein said controller, said further sensor, said pressure sensor as well as the communication portion are configured to receive power from the energy harvesting portion,
• wherein the communication portion, under control of the controller, is configured to communicate information indicative of the first and second measurements provided by the pressure sensor and data indicative of the first and second measurements provided by said further sensor to an extracorporeal receiving entity,
• wherein the controller is configured to control said communication portion and/or said pressure sensor and/or said further sensor to consume less energy in case storage of energy by the energy harvesting portion drops below a threshold,
• wherein the pressure sensor comprises an amplifier and an Analog-to-Digital Converter (ADC), and
• wherein the controller is configured to control the ADC to narrow an amplitude region in which the ADC searches for the second measurement of the pressure sensor by using the first measurement of the pressure sensor to thereby reduce power consumption of the ADC.