| 摘要 |
A pressure and a vision regulation method and device for irrigation of a body cavity ( 1 ), in which method an inflow liquid pump ( 2 ) pressurizes the irrigation liquid in a feed line ( 13 ) and in which an outflow device ( 3 ) or an external suction source ( 20 ) drains the irrigation liquid from the body cavity ( 1 ) through a tubing ( 16 ) into a waste container ( 17 ) and in which a control unit ( 4 ) controls either the inflow liquid pump ( 2 ) only or both the inflow liquid pump ( 2 ) and the outflow device ( 3 ) depending on an inflow irrigation liquid pressure from a pressure sensor ( 5 ), where the first control unit ( 4 ) compares the inflow irrigation liquid pressure and flow with pressures calculated to correspond to pressure in the body cavity for the respective flow for a nominal surgical site and that a matching between the calculated values and the inflow irrigation liquid pressures is made by altering the effect of either the inflow liquid pump ( 2 ) only or the inflow liquid pump ( 2 ) and/or the outflow device ( 3 ) and/or the shut off valve. The above-mentioned pressure registration method and the device for irrigation of a body cavity is combined with an method for detecting blood cells, red blood cells, haemoglobin and/or debris in liquid coming from a surgical site so an automatically control and rinsing system is achieved keeping a clear vision in the viewing area of the operational site.
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