| 摘要 |
Provided is an accumulator (208) that may store energy within a pressurized inflatable nail (100) to compensate for small changes or losses in a system volume. Alternatively, the accumulator may be external to a pressurized inflatable nail and attached to the nail after the nail is implanted. The accumulator may comprise a piston (302) or a pressurized bladder. The energy may be stored in a spring, compressed air, or other pressure source (304). The accumulator may stabilize a system pressure by supplying fluid to the closed system. Alternatively, the accumulator may stabilize a system pressure by replacing the volume of the lost fluid. |
