JB-SKSK22 Upper arm two degrees of freedom full pull switch prosthesis

The two control modes have two gears, one gear controls the hand movement, the other gear controls the elbow joint movement, the non-switching switch cable switch has the second gear, the first gear controls the hand and the elbow movement, and the other gear can be switched to adopt the new generation. Type B hand configuration for upper and middle arm, short residual limb, shoulder disconnection

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