| 摘要 |
PROBLEM TO BE SOLVED: To allow bending of even an osteosynthesis plate constituted of a high-brittleness material avoiding the risk of breaking the material, without requiring experienced skill in work.SOLUTION: A processing device 1 for an osteosynthesis plate A comprises: two receiving parts 8 disposed with a space between them; a pressing part 9 which presses toward the receiving parts 8 the osteosynthesis plate A supported bridging the receiving parts 8; manual operation parts 5, 6 for applying external force; and pressing force delivery mechanisms 3, 4 which delivers the external force applied on the manual operation parts 5, 6 and converts it into a pressing force by the pressing part 9 and receiving parts 8. When to the osteosynthesis plate A applied is a pressing force which generates a stress larger than a predetermined threshold smaller than a tensile force in a plastic region of a material constituting the osteosynthesis plate A, the pressing force delivery mechanisms 3, 4 blocks the delivery of the external force from the manual operation parts 5, 6 to the pressing part 9 or the receiving parts 8. |
