SURGERICAL DEVICE OF MULTI-JOINT

摘要

PURPOSE: A multi-joint surgical instrument is provided to rotate a tip end by using the expansion and contraction of a first shape memory member. CONSTITUTION: A tip end(10) is inserted into a body. A first rotating unit(20) is connected to the rear of the tip end through a first hinge shaft. The first shape memory member connects the tip end to the first rotating unit and rotates the tip end around the first hinge shaft. A second rotating unit(30) is connected to the rear of the first rotation unit through a second hinge shaft. The second shape memory member connects the first rotating unit to the second rotating unit. The second shape memory member rotates the first rotating unit around the second hinge shaft.