Positioning apparatus with lockable joints and method of use
作者： Joan Savall , J. Kenneth Salisbury
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摘要: A positioning system having a base, manually movable end effector and first joint interposed between the base is disclosed. The may comprise proximal portion distal coupled together by magnetic attraction configured to be intermittently separated pressurized gas cushion. changeable state fixed state. In state, portions are cushion relative each other. contact other movement thereby impeded. Methods of precisely an include providing device located distally from joint. have two cushion, allowing with respect base. method further effector, removing cause other, locking in precise location which it was positioned.
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