Patent ID: 9724004
Date: 2017-08-08
CPC Classifications: A61B

Claim:
1. A method for measuring a value for a tissue pressure of a tissue comprising: providing a Central Processing Unit (CPU) in operative engagement with a pressurizing unit that is in operative engagement with a pressure chamber having a pressure sensor and a range sensor, the range sensor being one of a transceiver operating on at least one of infrared, visible light or radio frequencies, a laser sensor, or a tonometer having a mechanically protruding part; the pressurizing unit creating a negative pressure in the pressure chamber; the pressure sensor measuring the negative pressure as a function of time and transferring measured information about the negative pressure to the CPU; the range sensor measuring a distance to the tissue to in turn measure a rising of the tissue caused by the negative pressure as a function of time, the range sensor transferring measured information about the rise caused by the negative pressure to the CPU; the CPU receiving the measured information about the negative pressure from the pressure sensor and the measured information about the rise from the range sensor; and the CPU using the measured information about the negative pressure and the rise to calculate a value for the tissue pressure; the calculation of the value for the tissue pressure being calculated iteratively as a function of the pressure chamber pressure, the ambient air pressure, an applied force, an elasticity coefficient and the rising of the tissue.