Patent ID: 7918237

Claim:
A crutch with a length controllable by pressure sensing, comprising: a holding portion, having a holding pressure sensing unit, for generating a holding pressure value; a lead screw shaft, comprising an engaging portion and a screwing portion on two ends of the lead screw shaft respectively; a supporting portion, perpendicular to the lead screw shaft, and comprising: a plurality of supporting pressure sensing units, for sensing a pressure for the supporting portion contacting with a ground, so as to generate a plurality of feedback pressure values; a motor, engaged to the engaging portion to drive the lead screw shaft to pivotally rotate; and a rod body, having one end connected to the holding portion and an other end pivoted to the screwing portion of the lead screw shaft, and allowing the lead screw to pivotally rotate inward or outward from the rod body; and a control module, electrically coupled to the holding pressure sensing unit, the supporting pressure sensing units, and the motor, for controlling a rotation of the motor according to the holding pressure value and the feedback pressure values.