Patent ID: 8801654

Claim:
A vision regulation device for a liquid for irrigation of a body cavity surgical site comprising, an inflow liquid pump arranged to feed an irrigation liquid from a container though a feed line into a body cavity, an outflow device, which is arranged to drain the irrigation liquid from the body cavity through a tubing, a first control unit connected to the inflow liquid pump, wherein the tubing is provided with optical sensors configured to be at an outflow site of the body cavity to identify an amount of blood cells, red blood cells, haemoglobin and debris in the irrigation liquid, and to give signals to a second control unit indicating the amount of blood cells, red blood cells, haemoglobin and debris, wherein the second control unit increases the effect of the inflow liquid pump and/or the outflow device to rinse the surgical site so that flow of the inflow irrigation liquid is increased when the amount of debris is increased in the irrigation liquid in, or coming out of, the surgical site or the inflow liquid pump is regulated so that pressure of the irrigation liquid is increased when the amount of blood cells, red blood cells or haemoglobin is increased in the irrigation liquid in, or coming out of, the surgical site.