21 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 invention provides a rebound torsion-resistant sole and a shoe. The sole comprises a first midsole and a second midsole. The front end of the heel part extends forwards to form a first wing part, a second wing part, a third wing part and a fourth wing part, the first wing part and the second wing part are arranged at intervals in the width direction, and the third wing part and the fourth wing part are located above the two wing parts. The first wing part is located on the outer foot side and extends to the front end of the sole, and the second wing part is located on the inner foot side and extends to the metatarsal area; the front ends of the third wing part and the fourth wing part are downwards connected to the first wing part and the second wing part respectively and are flush in the front-back direction. The second insole is provided with a supporting part and a foot bed part, the supporting part is embedded between the first wing part and the second wing part, and the foot bed part is embedded between the third wing part and the fourth wing part. The rebound rate of the second midsole is higher than that of the first midsole, and the damping G value of the first midsole is lower than that of the second midsole. The sole can provide good rebound resilience and torsion resistance.

The invention discloses a passive dance training shoe, and relates to the field of dance training equipment, the passive dance training shoe comprises a composite supporting sole and a vamp, the vamp is fixedly connected to the top of the composite supporting sole, and a supporting body is formed by an upper layer high-density EVA layer, a middle layer glass fiber reinforced nylon plate and a lower layer breathable honeycomb aluminum plate through hot pressing and compounding; the toe cap area at the front end of the composite supporting body keeps a constant elevation angle of 15-25 degrees, the elevation angle of 15-25 degrees is verified to be an optimal value through motion simulation, the pressure proportion of the metatarsal bone area can be increased to 60-70%, and the pressure of the toe area can be reduced to 10-15%; the composite supporting sole adopts an integrated design, and the vamp adopts elastic cloth to wrap the foot, so that the movement of toes is not influenced. In the dancing action, the shoe automatically guides the foot to apply force through a mechanical structure, external power is not needed, the foot posture can be corrected after long-term use, and toes are prevented from being excessively bent.

A sports shoe midsole includes a body and a cushioning element. The body, made of polymeric material, has an upper face and a lower face. The body defines at least one through-hole with a side wall connecting the upper face and the lower face. The cross section of the through-hole in the lower face is larger than the cross section of the through-hole in the upper face. The cushioning element is detachably mounted with respect to the body. The cushioning element fills the through-hole and bears continuously on the side wall. The cushioning element is arranged in a heel region or a metatarsal region.

A sole (100), for shoes, comprising: - an elastic base (30), having at least one first seat (31), for accommodating a midsole (10), - the midsole (10), comprising a first body (11), contoured to contain the sole of a foot (F) of a user, the first body (11) having an upper surface (12) which has a footbed-like shape and is surrounded by an outer perimetric edge (1), and a lower surface (13), opposite the previous one, the first body (11) having a plurality of regions (16, 21, 27) adapted to correspond to regions and / or bones of the foot (F), the regions (16, 21, 27) of the first body (11) comprising, in order, at least: - a heel region (16), - a tarsal region (21) comprising, in turn, a cuboid sub-region (25) and a third cuneiform sub-region (26), the cuboid sub-region (25) and the third cuneiform sub-region (26) being adjacent to a metatarsal region (27), - the metatarsal region (27) comprising in turn a first metatarsal sub-region (19'), a second metatarsal and third metatarsal sub-region (19''), a fourth metatarsal sub-region (17'') and a fifth metatarsal sub-region (17'); the lower surface (13) of the midsole (10) has: - a first portion (14) comprising a plurality of protrusions (15), the first portion (14) extending at least in a part of the heel region (16) and of the fifth metatarsal sub-region (17'), - a second portion (18) made of solid / continuous material, the second portion (18) extending at least in the first metatarsal sub-region (19').

The invention discloses a footwear product which comprises a sole and a vamp, on a side view projection surface of the footwear product, the lower surface of the sole forms an arc-shaped rolling contour which continuously extends to the front end of the sole and warps upwards in a half sole area, and a ground contact plane is formed in a heel area; a sole reference plane is defined by the lowest point of the arc-shaped rolling contour and the ground contact plane; the half sole low point of the arc-shaped rolling contour corresponds to the rear side of the foot metatarsal bone area; the ratio of the distance from the foremost end of the arc-shaped rolling contour to the sole datum plane to the projection length of the arc-shaped rolling contour on the sole datum plane is 1: 1.4 to 1: 1.6; an arc-shaped warping contour which continuously extends to the front end of the vamp, warps upwards to the highest point and then bends downwards is formed on the upper surface of the vamp in the toe cap area; a toe cap reference plane is defined by a toe cap low point of the arc-shaped warped contour and the sole reference plane in parallel, and the toe cap low point corresponds to a foot toe-heel area. The footwear product can improve the adverse effect of long-distance running on the toes of a runner.

A midsole / insole (10) for shoes, comprising a body (11) having an upper surface (12) which has a footbed-like shape and a lower surface (13), the body (11) having a plurality of regions (16, 21, 27) adapted to correspond to regions and / or bones of the foot (F), said regions (16, 21, 27) of the body (11) comprising, in order, at least: - a heel region (16), - a tarsal region (21), - the metatarsal region (27) comprising in turn a first metatarsal sub-region (19'), a second metatarsal and third metatarsal sub-region (19''), a fourth metatarsal sub-region (17'') and a fifth metatarsal sub-region (17'); the lower surface (13) has: - a first portion (14) comprising a plurality of protrusions (15), the first portion (14) extending at least in a part of the heel region (16) and of the fifth metatarsal sub-region (17'), - a second portion (18) made of solid / continuous material, the second portion (18) extending at least in the first metatarsal sub-region (19').

A skate boot is disclosed with a rigid boot shell having medial and lateral quarter portions defining a foot receiving cavity in between them having a volume for receiving at least a metatarsal region of a wearer's foot. A tongue extends between the medial and lateral quarter portions above the volume. A lacing system overlies the tongue and links the medial and lateral quarter portions. A foot wrapping member extends from the lateral quarter portion, the foot wrapping member movable relative to the rigid boot shell in a downward direction towards a sole portion of the rigid boot shell so as to vary the volume at least from a lateral side of the foot receiving cavity along the metatarsal region of the wearer's foot.

The utility model relates to the technical field of shoe soles, and particularly discloses a high-elasticity composite shoe sole, which sequentially comprises an upper sole, a lower sole, a lower sole and an upper sole from top to bottom, the first insole is made of carbon fibers; the second insole is made of PEBA, a first deformation groove is formed in the second insole, and the first deformation groove is located in the connecting area of the front plantar area and the outer side area; and the outsole is made of rubber. The elastic sole solves the problem that when a traditional sole is impacted by external force, the deformation quantity of a sole material is small, and the elasticity of the sole is poor.

A shoe insole comprising a cut out that follows the projection of the metatarsal area, said insole made out of a rigid material, and with a first predetermined thickness so that a user's weight is transmitted to the user's toes and calcaneal anterior area while minimizing the weight applied to the metatarsal area.

The invention relates to a multi-gradient damping sneaker insole structure based on shape memory alloy and a manufacturing method thereof, and relates to the technical field of sports equipment, the multi-gradient damping sneaker insole structure comprises a vamp, a supporting layer, a TPU supporting sheet, a supporting structure and an anti-skid block, and the bottom of the vamp is provided with the supporting layer. By arranging the transverse grooves and the corrugated grooves, the bending rigidity is reduced, and the use comfort of a sporter is improved; the radial multi-claw structure of the rear sole, the flaky structure of the front sole and deep ripples of the toe tip area are matched with the pedaling and stretching requirements, the design of the metatarsal bone area is beneficial to high-rigidity propulsion, the design of the toe tip area can enhance the flexibility so as to improve the local deformability, the claw roots of the radial multi-claw structure of the rear sole are in arc transition, and a plurality of groups of claw arms are arranged, so that stress concentration points can be eliminated, and the stability of the structure is improved. And the anti-fatigue life of the shape memory alloy can be prolonged while the use comfort is improved, and the shape recovery can be realized by soaking the supporting structure in warm water at 45 DEG C, irradiating by sunlight or heating at low power for 20 minutes.

The invention discloses a sole structure and a footwear product. The sole structure comprises an upper insole, a lower insole, an outsole and a reinforcing plate. The lower-layer insole comprises a first supporting module, a second supporting module and a third supporting module which are separated from one another, and the compression deformation rate of the first supporting module located on the outer side of the half sole is lower than that of the second supporting module located on the inner side. The reinforcing plate is arranged between the upper insole and the lower insole, and the reinforcing plate is provided with a straight section in a linear form corresponding to the foot metatarsal bone area. The bottom face of the second supporting module forms an arc-shaped rolling contour, and the lowest point, tangent to the horizontal plane, of the second supporting module is arranged behind the straight section of the reinforcing plate. And meanwhile, the first supporting module and the straight section of the reinforcing plate are at least partially overlapped in the vertical direction. The sole structure can solve the problems that natural torsion of the foot of a half sole landing runner is insufficient, and energy feedback is weak at the moment of stepping on the ground.

A shoe includes a knit upper and a sole secured to the knit upper. The knit upper is formed with a first type of knit structure knitted with a thermoplastic yarn in a first area. The first area is in at least the toe region of the knit upper. In a second area including at least the medial and lateral metatarsal regions of the knit upper, the knit upper is formed with a second type of knit structure knitted with a second yarn having a higher melting temperature than the thermoplastic yarn. A rear boundary line of the first area and a forward boundary line of the second area define a boundary line between the first and second areas.

The present invention relates to a method for preparing a carbon plate for running shoes, which belongs to the field of shoe accessories. The method sets different elastic moduli according to the stress conditions of each metatarsal area during running, sets a smaller elastic modulus at the weakly stressed area, and sets a larger elastic modulus at the strongly stressed area. The elastic moduli of the first metatarsal area, the second metatarsal area, the fourth metatarsal area, and the fifth metatarsal area are all smaller than the elastic modulus of the third metatarsal area. The present invention designs elastic moduli according to the force generation process and stress of each area of ​​the sole of the foot, so that different areas have different mechanical responses. A lower elastic modulus is designed for the weakly stressed area so that the carbon plate at this area can respond quickly and bend and deform; a larger elastic modulus is designed for the strongly stressed area so that this area can provide sufficient support. The arrangement of carbon fiber layers and polyimide fiber layers forms a carbon plate with different properties in different areas, which can take into account both the support and rapid response of the carbon plate.

A foot orthosis for correcting foot malpositions, in particular for treating hallux valgus, comprising a toe splint configured to be fastened to a toe and a metatarsal splint configured to be fastened to a metatarsal region of the foot, each of which are pivotably connected relative to one another by means of a swivel joint When the foot orthosis is fastened to the foot, the foot orthosis is configured to exert a first corrective force on the toe via the toe splint and to exert a second corrective force on a metatarsophalangeal joint via the swivel joint in the opposite direction to the first corrective force The swivel joint is provided with a recess which extends along a swivel axis of the swivel joint and is designed such that, when fastened to the foot, a sideways protruding section of the metatarsophalangeal joint is received in the recess.

Custom-made foot orthosis (100) for protecting a foot (10) of a user during gaiting, the foot orthosis comprises a layer (110) shaped for encapsulating the whole foot; the layer comprises at least one of the features of: a Thomas bar (130) arranged to the Thomas area for reducing development of hammer toes; a metatarsal patch (131) arranged to the metatarsal area for reducing impact on the metatarsal bones upon contact of the metatarsal area; a foot arch elevation (132) arranged to the arch area for reducing sagging of the medial longitudinal arch; and a calcaneus patch (133) arranged to the calcaneus area for reducing impact on the calcaneus upon heel contact of the foot; wherein the at least one feature is shaped for adapting the pressure distribution on the foot for preventing and / or reducing development of an ulcer on and / or a deformation of the foot.

A prosthetic foot plate can have adjustable flexibility in the toe region, the metatarsal area, and / or the arch to accommodate different heights to which a heel region of the prosthetic foot plate is raised. The adjustable flexibility can be provided by materials of different stiffness and / or different physical structures of one or more locations on the prosthetic foot plate. In another variation, the adjustability in the toe region can be provided by a link between the toe region and ankle of the prosthetic foot. The link can be actuated to adjust an orientation of the toe region and / or the metatarsal region in any heel-height setting.

The utility model provides a lightweight-designed racing shoe sole. The lightweight-designed racing shoe sole structurally comprises a shoe sole body, wherein the shoe sole body comprises a midsole; the outsole is arranged at the lower end of the midsole, a plurality of wavy anti-slip strips are arranged at the forefoot position of the bottom surface of the outsole and form a forefoot anti-slip area, at least one anti-collision belt is arranged on the edge of the forefoot anti-slip area, and a concave arch positioning groove is formed in the middle of the outsole. According to the sole for racing, the light-weight cushioning plate is arranged at the heel of the outsole in an embedded mode, and the hollow cavity is formed in the light-weight cushioning plate, so that the hollow cavity can be compressed during treading, the bottom surface of the light-weight cushioning plate and the bottom surface of the heel of the outsole are located on the same plane, and the original thickness of the sole for racing cannot be changed; and while the feeling of being in contact with the ground is ensured, the cushioning supporting effect is greatly improved by matching with the air cushion and the cushioning balls, the comfort is effectively improved, and sprain is prevented.

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.