INNER PRESSURE DETECTION DEVICE AND INNER PRESSURE DETECTION METHOD FOR INFLATION AND DEFLATION MEMBER, AND ENDOSCOPE APPARATUS

摘要

An inner pressure detection device for an inflation and deflation member includes: a pressure detection device which detects a pressure of a fluid at a first position in a proximal end side of a tube for supplying a fluid to an inflation and deflation member and exhausting a fluid from the inflation and deflation member, the inflation and deflation member included in an insertion portion configured to be inserted in a body cavity; a pressure loss calculation device which calculates a pressure loss of the fluid in the tube between the first position and a position in a distal end side of the tube where the inflation and deflation member is provided; and an inner pressure calculation device which calculates an inner pressure of the inflation and deflation member based on the pressure loss calculated by the pressure loss calculation device and the pressure detected by the pressure detection device.