| 摘要 |
A support arm (1) comprising: a flexible tubular main body (2); and a plurality of beads (3) contained within the tubular main body, wherein in a first configuration a fluid at least partially surrounds the plurality of beads, in a second configuration at least some of the fluid is evacuated such that the rigidity of the arm is increased, and the tubular main body is not substantially fluid-tight such that it is necessary to evacuate at least some of the fluid in the arm throughout a period in which the arm is in the second configuration. |
