| 摘要 |
FIELD: medicine.SUBSTANCE: group of inventions refers to surgery. A surgical console comprises a pneumatically operated valve; the first port and the second port connected to the valve configured to feed compressed gas into each of the first port and the second port alternatively; a pressure sensor connected to the ports; and a controller connected to the valve and pressure sensor. The controller is configured to control the time of open and closed state of a valve passage in accordance with the working cycle of the valve. The time of the open state of the valve corresponds to the first port open time, whereas the time of the close state of the valve corresponds to the first port close time. The controller is also configured to receive a measured port pressure differential and to calculate the port pressure differential in accordance with the pressure sensor data, and to modify the working cycle of the valve depending on the difference of the measured or calculated pressure differential and the desired mean pressure differential for reducing a difference of these values. What is disclosed is a method for the valve adjustment.EFFECT: maintaining the pressure required for the correct operation of the attached instruments.19 cl, 6 dwg |
