| 摘要 |
A hand support controlling device includes two hand support rod members and two controlling units. Each of the rod members has upper and lower rod sections, which are disposed rotatably on a base. Each controlling unit is rotatable between a first position, wherein the respective upper rod section is connected fixedly to the respective lower rod section so that the respective upper rod section can swing back and forth about a pivot axis, and a second position, wherein the respective upper rod section is fixed relative to the base and wherein the respective lower rod section is rotatable about the pivot axis.
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