3 results about "Metatarsal region" patented technology

This invention relates to the design and fabrication method of a flexible sensor array for plantar pressure monitoring. The flexible sensor array includes a first sensing unit and a second sensing unit. The first sensing unit is applied to the 1st metatarsal region, the 2nd-5th metatarsal regions, the medial heel region, and the lateral heel region. The second sensing unit is applied to the 1st metatarsal region, the 2nd metatarsal region, the 3rd metatarsal region, the 4th metatarsal region, the 5th metatarsal region, and the midfoot region. By optimizing the size, number, and distribution of the sensing units, complete representation of plantar pressure information is achieved, effectively solving the problem of low resolution and insufficient representation of plantar pressure information in existing sensors. A swelling process is used to enhance the interface of the quasi-homogeneous materials of the sensor, improving the interface stability and reliability of the sensor. The fabrication method of the plantar pressure monitoring sensor array of this invention has the advantages of low cost, easy mass production, and easy large-area expansion.

The utility model discloses a sole structure, footwear product, this sole structure includes upper layer midsole, lower layer midsole, big sole and reinforcing plate. Lower layer midsole contains first, second, third support module of mutual separation, wherein, the compression deformation rate of first support module located in the forefoot lateral side is lower than the second support module of inside. Reinforcing plate is located between upper and lower midsole, and it has straight section of linear form corresponding to metatarsal region of foot. The bottom surface of second support module constitutes arc rolling contour, and its lowest point being tangent to horizontal plane is configured behind reinforcing plate straight section. Meanwhile, first support module and the straight section of reinforcing plate at least partially overlap in vertical direction. The sole structure can improve the natural torsion deficiency of the foot of the forefoot runner landing and the problem that the energy feedback is weak in the moment of climbing the ground.

The application discloses a friction nanogenerator sensor array for gait detection and a preparation method thereof. The sensor array comprises a shoe pad body and a plurality of sensing unit groups integrated in the shoe pad body; the plurality of sensing unit groups comprise a first unit group corresponding to a heel region, a second unit group corresponding to a metatarsal region and a third unit group corresponding to a toe region; each sensing unit comprises, from top to bottom, an upper friction layer, an upper electrode, a multi-degree-of-freedom elastic support body, a limiting frame, a lower electrode and a lower friction layer; the multi-degree-of-freedom elastic support body comprises a plurality of inclined columns and a central column distributed in a circumferential direction, and is used for realizing mechanical decoupling of a vertical force, bidirectional shear force and a torsional moment; and flexible isolation grooves are arranged between adjacent sensing units. Through the partition differentiated structure design, the multi-degree-of-freedom force-electricity decoupling and the inter-unit crosstalk suppression, the application solves technical problems such as multi-directional force coupling, contradiction between spatial resolution and comfort, poor long-term cycle stability and the like in gait detection, and realizes high-precision and high-durability monitoring of plantar mechanics space-time distribution.