Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed are stockings for preventing and correcting hallux valgus, comprising a stocking leg portion, a stocking opening, and a toe portion; the toe portion is at least provided with a first toe for the hallux to wear; when the stocking is worn on the foot, the first toe is located on the inner side of the foot; when the stockings are worn on the foot, at least one longitudinal elastic yarn or band stretching from the tip of the first toe toward the foot arch is disposed on the first toe and a part of the stocking leg portion on the inner side of the foot; the elastic yarn or band is in a T-shape connection with a transverse elastic band stretching from the center of the joint of the hallux-connecting metatarsus toward the foot arch. The present invention can dispel concern about wearing high-heeled shoes and pointed shoes, can effectively prevent hallux valgus, correct moderate hallux valgus, stop severe hallux valgus from continuous worsening so as to stabilize the condition, and gradually improve hallux valgus with long-term use.
A: A running shoe sole system and a running shoe. The running shoe sole system comprises a sole body; the sole body comprises a midsole (1) for being in contact with a sole of a runner, and an outsole (2) attached to the bottom of the midsole (1) and in contact with the ground; the midsole (1) comprises a heel support portion, a foot arch support portion, a sole support portion, and a toe support portion; and an extension support table (10) is provided on each of the left side and the right side of the toe support portion, so as to provide support for a big toe and a small toe of the runner when the toes of the runner extend. Since the extension support table (10) is provided on each of the left side and the right side of the toe support portion, reliable and stable support can be provided for the big toe and the small toe of the runner when the two sides of each metatarsophalangeal joint of the runner extend outwards, and foot discomfort of the runner is avoided while ensuring that the two sides of each metatarsophalangeal joint of the runner naturally extend. The running shoe sole system not only improves the comfort of the running shoe, but also effectively prevents the occurrence of sports injury.
B: Disclosed is a multi-functional health-care insole, comprising an insole body (100). The insole body (100) comprises a surface coating layer (101), an insole body elastic layer (102), a rubber layer (103), a spacer layer (104) and a bottom coating layer (105), wherein the surface coating layer (101) is provided with five massage blocks (12), the five massage blocks (12) being arranged at positions corresponding to five toes of a human body; each of the massage blocks (12) comprises a massage block protection layer (1201), a far-infrared layer (1202), a massage block elastic layer (1203) and an isolation layer (1204), the far-infrared layer (1202) being composed of far-infrared granules; the surface coating layer (101) is divided into a forefoot region (1), a central foot region (2) and a posterior foot region (3), with the central foot region (2) being higher than the posterior foot region (3) and the forefoot region (1); the edge of the posterior foot region (3) extends toward the central foot region (2), forming an edge structure; and the edge structure comprises an inner central foot edge (21) and an outer central foot edge (22).
C: Socks, and in particular, wear-resistant socks. Each sock comprises a sock body. A removable thickening layer (1) is provided outside a toe portion of the sock body. A thickening piece (2) is fixedly provided inside a heel portion of the sock body. The sock body is provided with a pocket (3) used for storing small items. A soft nylon zipper (4) is provided outside the pocket (3). A turn-up (5) is provided at a cuff of the socket body. The turn-up (5) is provided with an opening (6) convenient for fitting a pair of socks together. The removable thickening layer (1) is bonded to the entire toe portion of the sock body, or the removable thickening layer (1) is bonded to the edge of the toe portion of the sock body. The opening (6) is an elongated hole, and the both ends are provided with fillets. The wear-resistant socks are scientifically designed, wear resistant, long in service life, convenient for storing small items, and easy to store the original pair of socks together. Therefore, the socks bring great convenience to lives and use of people, and have good practical application value and promotion value.
D: A vacuum-molded orthotic insole (10) and a preparation method therefor. The orthotic insole (10) is filled with multiple particles (12) in an airtight outer layer. The outer layer is provided with an air passage thereon and has a plane that matches the plane of a sole in structure. When the sole steps on the outer layer in a right posture, the particles can move in the outer layer along with the stereoscopic structure of the sole, and air inside the outer layer can be discharged out of the outer layer through the air passage because of the weight applied by the sole. And then, the air passage is vacuumed until the particles are shaped to press against each other and cannot continue to move, and the air passage is sealed airtight. In this way, the orthotic insole capable of helping the sole to be put in the right posture can be quickly and customized.
Answer: C