104 results about "Metatarsal bones" patented technology

Systems, devices, and techniques can be used to perform an osteotomy on a bone of a foot, to realign a cut bone portion relative to an adjacent bone portion, and / or to fixate a moved position of the cut bone portion relative to the adjacent bone portion for fusion. In some examples, the disclosed devices and techniques can be used as part of a metatarsal correction procedure in which a metatarsal is treated to correct a bunion deformity.

The invention relates to the technical field of shoes and garments, in particular to a high-wrapping-comfort sports shoe with a drawing dual-density midsole, which comprises an outsole and a vamp layer adhered and sewn to the edge of the upper surface of the outsole, and a wearing opening is formed in the position, located at the heel of the foot, of the vamp layer. A dual-density detachable insole with the bottom face attached to the outer sole is detachably arranged in an inner cavity of the vamp layer and comprises an insole body, the insole body comprises a high-density foaming body, and a low-density foaming body is integrally formed in the position, located at the heel of the foot, of the high-density foaming body. The low-density foaming body extends to the metatarsal bone position of the half sole of the foot in the direction from the heel to the half sole of the foot, provides high cushioning for the force exerting point of the foot, and is detached from the vamp layer for replacement after attenuation of the dual-density detached insole.

A minimally invasive method of correcting a bunion includes performing an osteotomy to divide the metatarsal into first and second portions, creating a pocket in the first portion implanting a nail in the pocket, securing a suture to the joint capsule, tensioning the suture to align the great toe with the metatarsal, attaching the suture to the nail, and fastening the nail to the second portion. The nail includes an anchor portion for anchoring in the first portion, a head for attachment to a second portion, a passage for attachment of the suture, a first aperture for a fastener to attach the head with the first portion, and a second aperture for a fastener to attach the head with the second portion.

A fusion plate (1, 20) to assist fusion of a first bone (2) and second bone (3) comprising a rigid elongated plate configured to span the joint between the first and second bones having a C-shaped profile along its length, a thickness of 0.5 to 1.5 mm, and a plurality of holes (11) to receive bone-fixing screws (12) to fix the plate to the first and second bones, wherein the plurality of holes include at least one proximal hole disposed on each side (9, 10) of a proximal end (7) of the plate configured to receive proximal bone fixing screws (12) in an orthogonal fixing screw configuration and at least one hole disposed on each side (9, 10) of a distal end (8) of the plate configured to receive distal bone fixing screws in an orthogonal fixing screw configuration. The plate may be configured for dorso-medial attachment and fusion of a meta-tarsal joint selected from a MetaTarsoPhalangeal joint (MTPJ) and a TarsoMetaTarsal Joint (TMTJ) of the big toe.

The invention discloses a nurse shoe and a preparation method thereof, and relates to the field of nurse shoes, the nurse shoe comprises an upper, a sole and a detachable insole, the insole is subjected to refined ergonomic design, pressure sinking convex-concave grooves with specific depths are formed in corresponding areas of the first toe, the second toe, the third toe, the fourth toe and the fifth toe and metatarsal bones; supporting pads with matched heights are arranged on the forefoot transverse arch and the foot inner and outer side longitudinal arches respectively, the full-periphery heel cup structure is arranged on the foot heel in a surrounding mode, an all-directional physiological supporting system is formed, the design can be precisely attached to the natural curve of the foot of the human body, pressure of different areas of the sole is evenly dispersed, the local stress peak value of the forefoot, the foot arches and the heel is effectively reduced, and the stability of the human body is improved. The sole is of a three-layer composite structure, the upper supporting layer provides reliable mechanical supporting, the middle buffering layer achieves efficient damping, the moderate-elasticity EVA anti-skid bottom layer enhances the road holding force of the wet and slippery ground through the anti-skid grain design, and the front 1 / 3 bending adaptive area improves the walking flexibility.

To provide an insole and footwear that can be used safely for a long period of time by both the elderly and young people, and that can prevent hallux valgus and flat feet and inhibit the progression of the symptoms. [Solution] The problem was solved by an insole comprising a medial arch support slope, an lateral arch support slope that supports the lateral arch, a central arch elevator that elastically presses and supports from the plantar side the flexor digitorum brevis, plantar aponeurosis, and the flexor digitorum brevis that cover the plantar sides of the third and fourth metatarsals, from near the posterior side of the MTP joint to near the Chopart joint, a phalangeal elevator that is formed by a mountain-like section that forms a gentle downward slope and protrudes downward from the back surface or upward from the surface, a flat surface provided between the central arch elevator and the phalangeal elevator, and a heel cup.

An insole (1) is provided, suitable to be inserted into a shoe and to sustain the weight of a foot, the foot defining: a forefoot comprising metatarsals; a midfoot; a rearfoot, the insole (1) defining: a first axis (1a), extending along the greatest dimension of the insole (1) and parallel to a resting plane; a second axis (1b), extending along a direction perpendicular to the first axis (1a) and parallel to the resting plane; a third axis (1c), perpendicular to the first axis (1a) and the second axis (1b); an outline (8) delimiting the area of the insole (1) suitable to come into contact with the foot; and comprising: an anterior portion (2) configured to sustain at least part of the weight of the forefoot; an intermediate portion (3) connected to the anterior portion (2) and configured to sustain at least part of the weight of the midfoot; and a posterior portion (4) connected to the intermediate portion (3) and configured to sustain at least part of the weight of the rearfoot, the anterior portion (2), the intermediate portion (3), and the posterior portion (4) being arranged sequentially along the first axis (1a), the anterior portion (2) having a thickness, measured with respect to the third axis (1c), that varies along the first axis (1a) and along the second axis (1b), the anterior portion (2) defines a plurality of positioning elements (5) configured to sustain at least part of the weight of the forefoot.

A method of preparing a metatarsophalangeal joint for fusion may involve surgically accessing the metatarsophalangeal joint and separating the metatarsal from the opposed proximal phalanx at the joint. The technique may involve preparing an end of the metatarsal and preparing an end of the opposed proximal phalanx for fusion. With or without the aid of a bone positioner, the metatarsal may be moved in one or more planes, such as the frontal and transverse planes. The proximal phalanx may also be moved in one or more planes, for example relative to the moved metatarsal. Subsequently, a bone fixation device can be applied across or through the metatarsophalangeal joint separating the metatarsal from the opposed proximal phalanx.

The present invention relates to a device for measuring the dorsal mobility of the first ray of the foot comprising two independent upward force exerting means (2) adapted to exert a force on a part of a forefoot, each upward force exerting means (2) comprises a force sensor, wherein the device comprises at least one displacement sensor (5), the device is adapted to measure a displacement as a function of the applied force.

The application provides a kind of bionic multi-toe joint cooperative mechanical foot and bionic machine, including bionic toe-web opening and closing mechanism, bionic multi-toe joint section-by-section take-off mechanism and bionic foot web;The bionic toe-web opening and closing mechanism is connected with bionic multi-toe joint section-by-section take-off mechanism, and the bionic toe-web opening and closing mechanism is located above the bionic multi-toe joint section-by-section take-off mechanism, and the bionic foot web is connected with the bionic multi-toe joint section-by-section take-off mechanism, and the bionic toe-web opening and closing mechanism rotates to open the bionic multi-toe joint section-by-section take-off mechanism, thereby driving the bionic foot web to open.The toe-web opening and closing mechanism of the application realizes toe web opening through the forward rotation of the metatarsal bone after the mechanical foot touches the ground, thereby significantly increasing the ground contact area, reducing the ground pressure, and increasing the ground friction.

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.

1. The name of the design product: fixed brace (metatarsal). 2. The use of the design product: for metatarsal injury, metatarsal trauma postoperative fixation, metatarsal strain or metatarsal fracture rehabilitation period. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The utility model belongs to the technical field of footwear articles, and provides a sole and a walking shoe, the sole comprises a midsole and an outsole, and the outsole is arranged at the bottom of the midsole; a plurality of arc-shaped grooves are formed in the bottom end face of the shoe outsole, and a plurality of grooves are formed in the side face of the shoe insole. According to the structure that the metatarsal bone of the front foot sole is bent when a user walks, a plurality of grooves are formed in the side face of the shoe insole, the whole shoe sole can be bent conveniently, the grooves are matched with the bent portion of the foot sole of the user, gait walking is facilitated, and the walking comfort is improved; in cooperation with the structure of the elastic foaming material adopted by the shoe middle sole and the shoe outsole, the arc-shaped grooves can deform and generate different tension according to the stress of gait movement, so that the bending property and the telescopic property of the outsole are improved, and meanwhile, the overall appearance is novel and artistic.

The invention discloses a sole with an arch support and a shoe. The sole comprises an upper insole; the foot arch supporting block is compounded below the upper-layer insole and corresponds to the foot arch part, and the hardness of the foot arch supporting block is higher than that of the upper-layer insole; the foot arch supporting block comprises a main body part which transversely extends to be matched with and support a transverse arch of the area behind the foot sole metatarsal bone; the inner side supporting part is located on the inner side of the main body part and extends in an arch-shaped bending mode from front to back so as to be matched with and support the inner side longitudinal arch of the sole; the outer side supporting part is located on the outer side of the main body part and extends in an arch-shaped bending mode from front to back so as to be matched with and support an outer side longitudinal arch of the sole; wherein the inner side supporting part and the outer side supporting part extend backwards relative to the main body part, and a receding part is formed between the inner side supporting part and the outer side supporting part; the upper-layer insole is provided with a supporting part matched with the receding part in position and shape, and the lower surface of the supporting part is flush with the lower surface of the foot arch supporting block. The shoe sole and the shoe with the shoe sole can effectively support the foot arch of the foot of a child.

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.

To propose improvement of the performance of an outsole, and particularly provide a sole structure having guiding, holding, cushioning and restarting effects by a scalable center of gravity.SOLUTION: A shoe may comprise an upper (5) and a comfort sole (9) attached to an outsole (7), the comfort sole having a radius of curvature at any point of a line from a heel (C) to a toe (D) and interfacing with the outsole (7). The lowest point of the comfort sole (9) and the outsole (7), called the center of gravity or the balance point of the sole or the natural balance point of the shoe, when placed on a substantially horizontal reference plane (H) defines a transition zone (Z1) of the rolling motion of the foot having the maximum radius of the comfort sole and the outsole, and in the center of the gravity is behind a point (B) of the metatarsals.SELECTED DRAWING: Figure 1

The utility model relates to an insole with a correcting function, which comprises an insole body, the edge of the insole body from the arch to the heel extends upwards to form a cup-shaped structure, a gravity guide wire groove is arranged on the bottom surface of the insole body, and the gravity guide wire groove is positioned in the middle of the bottom surface of the insole body and extends from the front sole to the heel. By means of the design of the gravity guide wire groove, after pressure is applied to the foot, the pressure is concentrated towards the gravity guide wire groove, the two sides of the insole can deform due to the concentrated pressure, the cup-shaped structure is matched, the arch and the heel are wrapped and bound, and the problem of foot ectropion can be solved.

The shoe sole comprises a shoe sole body and is characterized in that five first supporting parts which extend front and back and are arranged at intervals in the left-right direction are arranged on the bottom face of a front sole area of the shoe sole body, the five first supporting parts are arranged on the bottom face of the shoe sole body in a protruding mode, and the five first supporting parts are arranged opposite to bones of a front sole; the sole area in the human skeleton is mainly composed of metatarsal bones and part of phalanx bones, five first supporting parts which extend front and back and are arranged at intervals in the left-right direction are arranged on the bottom face of the front sole area of the sole body, and the five first supporting parts can correspond to the five metatarsal bones and part of phalanx bones of the front sole. Therefore, a good supporting effect can be achieved on the sole in the using process.

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 device for protecting a plantar pad of a foot, including: a pad including a viscoelastic material, configured to be held on the skin of the plantar region, and to cover all the metatarsal heads and metatarsophalangeal joints of the foot, and an elastic strap attached to lateral edges of the pad, and including a transverse and a longitudinal portion forming a brace configured to pass between a big toe and an adjacent toe, the longitudinal portion having a distal edge fixed to a distal edge of the pad, the transverse portion having a distal edge delimiting, with the pad and a lateral edge of the longitudinal portion, an aperture for the passage of the second to fifth toes, the distal edge of the transverse portion and the lateral edge having, in a unstretched flat state, rectilinear portions forming between them an angle between 75 and 100°.

A metatarsal hemi-arthroplasty implant may include a convex outer surface overlaying a concave inner surface wherein the convex outer surface is shaped to replace an articular surface of a distal end of a metatarsus. The implant may further include a stem that is configured to be inserted into an intramedullary canal of the metatarsus. The stem may extend from the concave inner surface along a longitudinal axis of the implant, and may have an outward-facing surface disposed at a first angle relative to the longitudinal axis, at least one flute extending along the length, and at least one radial groove formed in the outward-facing surface. The implant may further include a plurality of rib members distributed about the stem member to connect the stem to the inner concave surface. Each of the rib members may have a distally-facing surface disposed at a second angle relative to the longitudinal axis.

An apparatus, system, and method is disclosed for correcting a condition present in a patient. The apparatus may include a body having a superior side, an inferior side, a medial side, a lateral side, a proximal side, and a distal side. In addition, the apparatus may include a resection feature between a proximal end and a distal end that guides resection of a metatarsal of a patient's foot. Moreover, the apparatus may include a bone attachment feature configured to couple the body to the metatarsal. Also, the apparatus may include a bone engagement surface configured to register to the metatarsal based on medical imaging taken of the patient's foot.

The utility model discloses a safety shoe with a metatarsal protection component, comprising a safety shoe, a toe cap structure is installed at the toe part of the safety shoe, a tongue is provided at the top of the safety shoe, a metatarsal protection component is installed at the top of the tongue, and the bottom of the metatarsal protection component is connected to the top of the toe cap structure; the front and rear sides of the metatarsal protection component are fixedly connected with sub-velcro, the bottom of the sub-velcro is adhered with a mother Velcro, and the mother Velcro is fixedly connected to the front and rear sides of the safety shoe. The utility model has the advantage of good protection, and solves the problem that the existing safety shoes are not convenient for protecting the metatarsal part of the staff during use, and when the staff encounter unexpected situations at work, such as heavy objects falling or being hit, if there is no additional protection for the metatarsal part, the metatarsal area may be injured, increasing the risk of injury.

This product is a sock, as shown in the perspective view, for example, with five toe sections on the toe side for individually inserting the five toes, and the tips of each of the five toe sections are formed to have an opening, and as shown in the reference diagram showing the state of use, the toes are exposed through the opening when worn. Furthermore, this sock has a shock-absorbing cushion section on the metatarsal head side of the sole, particularly as shown in the dorsal view, plan view, bottom view and perspective view, for example, with a striped pattern on its outer surface, and the inner surface of the cushion section is made of a material with excellent heat retention properties.

This invention provides a metatarsal fracture brace, comprising a covering component for covering the metatarsal and a fixation component for fixing the metatarsal. The covering component includes a metatarsal cover and an ankle fixation component. The metatarsal cover includes a first cover, a second cover, a third cover, and fasteners connected to both sides of the first cover along its length. The fixation component includes a foot support, a lower metatarsal surface fixation component, and a higher metatarsal surface fixation component. This invention provides good fixation and is lightweight, avoiding excessive negative pressure on the metatarsal during walking, thus promoting metatarsal fracture recovery.

Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused 2024 / 064830 by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the metatarsal phalangeal joint or other joint of the foot or ankle, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint.WO

Devices and techniques for adjusting an alignment for a first metatarsal may include making a plurality of cuts along the length of the first metatarsal. In different applications of the technique, a plurality of transverse cuts may or may not be made intersecting the longitudinal cuts. In either case, the cuts can separate the first metatarsal into two individual portions and release a removable wedge of bone. The different portions of the metatarsal can be moved relative to each other to adjust an anatomical alignment of one portion relative to another portion, for example in multiple planes. After suitably adjusting the alignment of the different bone portions, the portions can be fixed together.

The utility model relates to insole technical field, propose a kind of slow pressure insole for solving arch collapse problem of reinforcing arch support force, including surface layer, support layer, bottom layer, the support layer is set between the surface layer and bottom layer by calcaneus of foot extension towards metatarsal bone site, the support layer is thermoplastic material, the support layer is located in the lower concave of central portion of calcaneus, and the lower concave wrapping portion of two side arc shapes is upwards, and support layer is located in the tarsometatarsal joint department between calcaneus and metatarsal bone and is upwards arched and is presented as upper arch portion.