Abstract: A device for three-dimensional foot motion control and plantar pressure redistribution, for controlling relative motions of foot joints effectively by modifying heel strike angles and adjusting relative plantar pressures of a foot is disclosed. It includes an arch supporting main body, for supporting medial longitudinal arch, transverse arch and lateral longitudinal arch of the foot, a rear end having at least one lateral side extending corresponding to the location of calcaneus of the foot; wherein the arch supporting main body is a three-dimensional structure formed by curvatures of the medial longitudinal arch, the transverse arch and the lateral longitudinal arch collaboratively, and a hindfoot motion adjustment portion for modifying heel strike angles.

Abstract: A device for three-dimensional foot motion control and plantar pressure redistribution, for controlling relative motions of foot joints effectively by modifying heel strike angles and adjusting relative plantar pressures of a foot is disclosed. It includes an arch supporting main body, for supporting medial longitudinal arch, transverse arch and lateral longitudinal arch of the foot, a rear end having at least one lateral side extending corresponding to the location of calcaneus of the foot; wherein the arch supporting main body is a three-dimensional structure formed by curvatures of the medial longitudinal arch, the transverse arch and the lateral longitudinal arch collaboratively, and a hindfoot motion adjustment portion for modifying heel strike angles.

Abstract: A measuring system for analyzing a knee joint motion trajectory when a rider is riding a bike (cycling) and a measuring method thereof are disclosed. The measuring system includes a pedal-able device, a light emitting component fixed at a tibial plateau of the rider, an image capturing device, and a knee joint motion trajectory analysis device. When the rider continuously pedals the pedal-able device, the image capturing device captures an image of a central position of the rider's lower limb and a light spot trajectory image of the light emitting component. The motion trajectory analysis device generates an ellipse motion trajectory diagram. After comparing and analyzing a body central line with a trajectory long axis line, a foot force distribution and a shifting data of the knee joint motion trajectory is acquired, and a proper insole is determined.

Abstract: A measuring system for analyzing a knee joint motion trajectory when a rider is riding a bike (cycling) and a measuring method thereof are disclosed. The measuring system includes a pedal-able device, a light emitting component fixed at a tibial plateau of the rider, an image capturing device, and a knee joint motion trajectory analysis device. When the rider continuously pedals the pedal-able device, the image capturing device captures an image of a central position of the rider's lower limb and a light spot trajectory image of the light emitting component. The motion trajectory analysis device generates an ellipse motion trajectory diagram. After comparing and analyzing a body central line with a trajectory long axis line, a foot force distribution and a shifting data of the knee joint motion trajectory is acquired, and a proper insole is determined.

Abstract: A device for improving walks of a patient with knee osteoarthritis includes an insole, an inside-forefoot wedge cushion joining the insole at an inner side of a forefoot, wherein the inside-forefoot wedge cushion can support the inner side of the forefoot and thus reduce knee varus torques, an outside-hindfoot wedge cushion joining the insole at an outer side of a hindfoot, wherein the outside-hindfoot wedge cushion can support the outer side of the hindfoot and thus reduce knee varus torques, and a medial-foot-arch cushion joining the insole, wherein the medial-foot-arch cushion can have a foot to be turned out and increase walking stability and fluency. Thereby, a patient with knee osteoarthritis, when being walking, can have reduced knee varus torques. The purpose of improving walks of a patient with knee osteoarthritis can be achieved.

Abstract: The invention provides a method of measuring and identifying foot arch type according to footprint data. The method includes: obtaining a static standing footprint having a foot contour including lateral and medial contours; obtaining a lateral ball and lateral heel tangent points of the footprint, and a medial ball and a medial heel tangent point of the footprint; obtaining a ball and a heel mid-point; obtaining a foot center axial line and a foot perpendicular bisector; obtaining the length of a foot width Lf as the length of the foot perpendicular bisector, and the width a foot arch La; and calculating a foot type index FTI by dividing the width of the foot arch La by the length of the foot width Lf (FTI=La/Lf), and identifying a foot arch type of the footprint by the foot type index FTI.

Abstract: The invention provides a method of measuring and identifying foot arch type according to footprint data. The method includes: obtaining a static standing footprint having a foot contour including lateral and medial contours; obtaining a lateral ball and lateral heel tangent points of the footprint, and a medial ball and a medial heel tangent point of the footprint; obtaining a ball and a heel mid-point; obtaining a foot center axial line and a foot perpendicular bisector; obtaining the length of a foot width Lf as the length of the foot perpendicular bisector, and the width a foot arch La; and calculating a foot type index FTI by dividing the width of the foot arch La by the length of the foot width Lf (FTI=La/Lf), and identifying a foot arch type of the footprint by the foot type index FTI.

Abstract: A wheel frame assembly capable of being folded and expansion rapidly for carrying out and storage easily and conveniently. A wheel frame assembly comprises a retainer frame having two parallel retaining rods; at least two rotary units; each rotary unit being formed by assembling a sleeve with a wheel; an active frame have two parallel active rods; each active rod being penetrated by a guide shaft; a telescopic rod having an inner rod and an outer rod engaged to inner rod; the telescopic rod being connected to a latch for controlling the telescopic movement of the inner rod; the actuation of the latch being performed by a handle. Another, a pin assembly can be used to replaced the telescopic rod. The pin assembly includes a rod unit engaged to the rotary unit and a wire for controlling the rod unit to separate from the rotary unit.

Abstract: A wheel frame assembly capable of being folded and expansion rapidly for carrying out and storage easily and conveniently. A wheel frame assembly comprises a retainer frame having two parallel retaining rods; at least two rotary units; each rotary unit being formed by assembling a sleeve with a wheel; an active frame have two parallel active rods; each active rod being penetrated by a guide shaft; a telescopic rod having an inner rod and an outer rod engaged to inner rod; the telescopic rod being connected to a latch for controlling the telescopic movement of the inner rod; the actuation of the latch being performed by a handle. Another, a pin assembly can be used to replaced the telescopic rod. The pin assembly includes a rod unit engaged to the rotary unit and a wire for controlling the rod unit to separate from the rotary unit.