external fixator for bone surgery device

摘要

i'm known valves detector position of the shutter closure (for the valve cartridge) or the back and forth direction (in the valves to the drawer): these are three defects.1.1) the bolt / shuttle never sympathize with the detector of position, there is a margin of error in the indication of the position.(2) the detection of the position is made with a special magnetic sensor proximity effect to withstand the pressure of work / discharge) which works on the valve.with failure probability of the ultima.3) excludes the possibility of using a micro switch to control mechanic.the electric control valve with position has the bolt / shuttle cylinder block with the astina operation scope outside the zone pressure and separate it from a gasketto estate, thus overcome the drawbacks mentioned above, and making it possible to use proximity sensors are normal or micro switches to drive mechanic.