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37 results about "Metatarsal bones" patented technology

The metatarsal bones, or metatarsus are a group of five long bones in the foot, located between the tarsal bones of the hind- and mid-foot and the phalanges of the toes. Lacking individual names, the metatarsal bones are numbered from the medial side (the side of the great toe): the first, second, third, fourth, and fifth metatarsal (often depicted with Roman numerals). The metatarsals are analogous to the metacarpal bones of the hand. The lengths of the metatarsal bones in humans are, in descending order: second, third, fourth, fifth and first.

Nurse shoes and preparation method thereof

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.
Owner:TAIHE HOSPITAL OF SHIYAN CITY (AFFILIATED HOSPITAL OF HUBEI UNIVERSITY OF MEDECINE)

Insoles and footwear

ActiveJP7798309B1SolesMusculus flexor digitorum brevisMechanical engineering
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.
Owner:OPTI INC +1

A bionic multi-toe joint cooperative mechanical foot and a bionic mechanical

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.
Owner:JIANGSU UNIV

Design of flexible sensor array for plantar pressure monitoring and method for manufacturing the same

ActiveCN119564192BSensor arrayMetatarsal region
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.
Owner:BEIHANG UNIV

Rebound torsion-resistant sole and shoe

PendingCN121570016ASolesMetatarsal regionStructural engineering
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.
Owner:ANTA (CHINA) CO LTD

Sole and wide-head shoe

ActiveCN223730818USolesHuman bodyMedicine
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.
Owner:FUJIAN SHIPAI COMMERCE & TRADE CO LTD

Apparatus, system, and method for patient-specific methods and instrumentation

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.
Owner:TREACE MEDICAL CONCEPTS INC

socks

ActiveJP1824374SMetatarsal bonesCushion
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.
Owner:TABIO CO LTD

A metatarsal fracture brace

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.
Owner:XIAMEN AILEPU SUPPLY CHAIN MANAGEMENT CO LTD

Methods to reconstruct bone and joint surfaces in foot or ankle joint

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
Owner:SUBCHONDRAL SOLUTIONS

Devices and techniques for performing an osteotomy procedure on a first metatarsal to correct a bone misalignment

PendingUS20260007415A1Surgical sawsBone drill guidesBone MalalignmentTransverse incision
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.
Owner:TREACE MEDICAL CONCEPTS INC

A cushioning insole for enhancing arch support

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.
Owner:HURLEY HLDG (FUJIAN) CO LTD

Toe-standing posture stabilization aid

ActiveJP2026116021AFoot painsExercise performance
This invention provides a toe-standing posture stabilization aid that can improve athletic performance by stabilizing posture in all track and field sports that require a toe-standing position with the toes bent towards the top of the foot, and can also reduce, eliminate, or improve foot pain. [Solution] The sock-like main body 2 is provided with a lower cloth 2a as a sheet-like bottom that overlaps the tips of the first to third metatarsals on the sole of the foot to be supported. When the toes are bent towards the top of the foot and the person is standing on their tiptoes with the main body 2 on, a pad 1 is provided on the upper surface of the lower cloth 2a at least one of the positions where the tips of the first to third metatarsals are close together, to fill the difference in distance between the tips of at least two of the first to third metatarsals and the ground. The pad 1 has a contour with a rounded, sharp corner at the tip, and a flat part of a certain thickness or at least two flat parts of different thicknesses.
Owner:DANCINGFUN CO LTD

A casual athletic shoe designed for high comfort

This utility model discloses a casual sports shoe based on a high-comfort design, relating to the technical field of sports shoes. It solves the problem that, even if each wearer requires the same shoe size, the width of their metatarsal bones varies, and the edge of the casual shoe at the metatarsal area cannot be adjusted for tightness. This leads to blisters and reduced comfort for wearers with wider metatarsal bones. The invention includes a shoe body, a first elastic band, and a second elastic band. The first and second elastic bands are positioned at the lower end of the metatarsal bone and connected by a U-shaped buckle and hook, allowing for convenient adjustment of the distance between them. This prevents increased pressure on the metatarsal area from the sides of the shoe.
Owner:RUIAN JINZITA SHOES CO LTD

Dermal cap for resurfacing bone joints

PendingUS20260053626A1Finger jointsAnkle jointsAnatomical structuresArticular cartilage
An apparatus and methods are provided for a dermal cap for resurfacing a metatarsal head of the foot or a metacarpal head of the hand. The dermal cap comprises an outer surface having a convex shape, an inner surface having a concave shape, and a rounded peripheral surface joining the inner surface and the outer surface. The inner surface can be placed onto a bone head such that the outer surface provides a bone head surface resembling the original articular cartilage. The outer surface effectively restores the articular cartilage and thus relieves pain and facilitates better joint function. The dermal cap can be formed by stretching it over a rounded mandrel shaped similarly to the size and anatomy of the bone head to be treated. The dermal cap can be freeze-dried on the rounded mandrel to set the desired anatomy of the dermal cap.
Owner:THERAMICRO

Exercise apparatus

An exercise apparatus, comprising a foot holder; the foot holder including a pull strap and a strap guide; the strap guide positioned such that the strap guide lies adjacent a top side of a midfoot section of a foot and / or lies adjacent one or more metatarsals of a forefoot section of the foot; a pull strap positioned such that the pull strap extends from a bottom side of the foot around one or more phalanges of the foot and along the top side of the foot to the strap guide; and the pull strap arranged with the strap guide such that, when a pulling force is applied to the pull strap, the pull strap slides through the strap guide to direct the pulling force along the top side of the foot around the one or more phalanges of the foot to the bottom side of the foot.
Owner:SERODIO KATE

Reduction guiding instrument for hallux valgus surgery

The invention discloses a reduction guide instrument for a hallux valgus surgery, and belongs to the technical field of medical instruments.The reduction guide instrument for the hallux valgus surgery comprises a box with the interior of a hollow structure, and a foot fixing assembly is installed in the box and used for fixing the foot of a patient in the surgery; the top of the arc-shaped block is fixedly connected with a controllable reset moving assembly used for adjusting and moving the first metatarsal osteotomy reset distance of a patient, the arc-shaped block is in threaded connection with a first fastening threaded rod in a penetrating mode, the first fastening threaded rod is in threaded connection with a rotary knob in a penetrating mode, and the rotary knob is rotationally connected with the outer wall of the arc-shaped block. By adopting the controllable reduction moving assembly and the foot fixing assembly, dynamic regulation and control of the osteotomy translation distance are achieved, the hallux valgus severity degree of different patients is accurately adapted, deviation caused by the fact that the reduction amount depends on experience estimation in a traditional operation is avoided, and the risks of post-operation re-deflection and poor bone healing are remarkably reduced.
Owner:ANNING HOSPITAL OF TRADITIONAL CHINESE MEDICINE

Shaping device for leisure shoe processing

The invention relates to the technical field of casual shoe processing, in particular to a shaping device for casual shoe processing, according to the technical scheme, the shaping device comprises a bearing mechanism and an adjustable shoe tree, and the adjustable shoe tree is placed on the bearing mechanism and used for sleeving casual shoes and achieving longitudinal size adjustment; the adjustable shoe tree comprises a shoe tree body and an adjusting assembly, the shoe tree body is sequentially divided into a heel part, a metatarsal bone part and a toe part in the length direction, the metatarsal bone part and the heel part are elastically connected through a first elastic piece, and the toe part and the metatarsal bone part are elastically connected through a first elastic piece. The adjusting assembly comprises a horizontal rack, a longitudinal rack and a transmission unit, the horizontal rack is installed in the shoe tree body in a sliding mode, the longitudinal rack is vertically arranged and meshed with the transmission unit, the transmission unit is meshed with the horizontal rack, and the adjusting assembly is used for driving the metatarsal bone part and the shoe head part to move in the length direction of the shoe tree body. The problem that the longitudinal size adaptability of the shoe tree is poor in the leisure shoe processing process is solved.
Owner:浙江中远鞋业有限公司

Representations of foot features

In some examples, a system receives an input three-dimensional (3D) representation of a foot, and analyzes the input 3D representation of the foot to identify first points corresponding to metatarsal bones of the foot. Based on locations of the first points corresponding to the metatarsal bones, the system identifies a second point corresponding to a heel of the foot, and generates, based on the first points and the second point, a representation of features of the foot.
Owner:PERIDOT PRINT LLC

A metatarsophalangeal joint replacement prosthesis for hallux valgus patients

The present application relates to a kind of metatarsophalangeal joint replacement prosthesis for hallux valgus patient, it is related to medical instrument technical field, it includes toe bone prosthesis, metatarsal bone prosthesis and the toe bone platform pad between them;The handle body surface of metatarsal bone prosthesis and toe bone prosthesis is provided with serrated structure;Metatarsal bone prosthesis is close to toe bone end and is equipped with limiting groove, and toe bone platform pad is close to metatarsal end and is equipped with limiting lug, limiting lug is embedded in limiting groove to form hinged connection structure, so that joint activity is constrained to single sagittal plane.The present application fills the clinical blank of severe hallux valgus metatarsophalangeal joint replacement prosthesis, through stable hinged structure, lengthened serrated intramedullary canal handle and multi-angle adaptation design, while realizing deformity correction and long-term stability, joint activity is retained.
Owner:DABO MEDICAL TECH CO LTD +1

Insole core material used to support the feet

ActiveCN224440536UMedial rotationFoot soles
An insole core material for foot support. On the upper surface of the core material, multiple tarsal support portions are formed by three-dimensional ridges that provide corrective support for the skeletal alignment of the foot, corresponding to the positions and heights of multiple tarsal bones. When the upper, lower, or both surfaces of the core material have following grooves or following ridges that follow the movement between the tarsal support portions, it can flexibly accommodate flexion, internal rotation, and external rotation movements. A protruding structure, functioning as a corrective fulcrum, can be provided at a position corresponding to the lower part of the cuboid bone. On the lower, upper, or both surfaces of the core material, one or more reinforcing grooves can be provided to adjust the balance between the overall rigidity and flexural flexibility of the core material and to distribute pressure on the sole of the foot. Optimal support height is achieved by utilizing a structure extending to the base of the metatarsals and a setting based on a mathematical formula using correction coefficients.
Owner:ANTOKU NIS CO LTD

First metatarsal lateral release instrument and technique

PendingUS20260083465A1Bone drill guidesSurgical operationFirst metatarsal
Instruments and techniques can be used to release a first metatarsal for realignment. In some implementations, a techniques involves surgically accessing a sesamoidal ligament in a foot of a patient and advancing a guiding projection of a cutting instrument under the sesamoidal ligament. This can capture the sesamoidal ligament between the guiding projection of the cutting instrument and a cutting surface of the cutting instrument that is recessed relative to a distal end of the guiding projection. The techniques further involves cutting the sesamoidal ligament with the cutting surface of the cutting instrument.
Owner:TREACE MEDICAL CONCEPTS INC

A biomechanical sock

A sock comprising a foot part made of a textile, wherein the foot part comprises at least one inset integrated with the textile at least partly in a sole of the foot part, said inset providing increased thickness to a thickness of surrounding parts of the textile, wherein at least one inset is located in one or more of the following areas: an area covering at least an innermost metatarsal bone of a wearer; an area covering at least an outermost metatarsal bone of the wearer; an area covering at least in an inner and medial area of a heel bone of the wearer; an area covering at least an outer and lateral part of a heel bone of the wearer.
Owner:FOOTBALANCE SYST

Wear-resistant commuting sole

The utility model relates to the technical field of shoes, and discloses a wear-resistant commuting sole which comprises an outer covering shell, an outsole wear-resistant layer, a midsole supporting layer and a base layer are sequentially arranged on the inner side of the outer covering shell from bottom to top, and the outsole wear-resistant layer comprises a metatarsal bone strengthening area, an arch supporting area and a heel elastic area. Silicon carbide particle wear-resisting pieces arranged in a rhombus shape are embedded into the bottom of the metatarsal bone strengthening area, staggered flow guide grooves used for guiding water flow and silt to be discharged are formed between the silicon carbide particle wear-resisting pieces, and the foot arch supporting area comprises a base which is arranged in the middle of the bottom of the outsole wear-resisting layer; a plurality of supporting springs used for providing arch support are arranged in the base. According to the utility model, through the subarea reinforcing structure of the wear-resistant layer of the outsole and the design of the bionic lines, differentiated wear resistance and uniform wear distribution are realized, the service life of the sole is prolonged, the friction force in all directions and the drainage capacity are enhanced, and the overall stability is improved.
Owner:DONGGUAN JIELIN SHOES CO LTD

Socks for diabetic patients

By simply wearing these socks, diabetic patients can effectively prevent ulcer formation while going about their daily lives indoors. This is achieved by physically supporting the arch of the foot, distributing the load on bony prominences such as the toes, metatarsal heads, and heels. [Solution] This sock 100 for diabetic patients is composed of a foot portion F that covers from the toes to the heel, including the instep and sole of the foot, and a leg portion L that extends from the foot portion F and covers from the ankle to at most below the knee. A large cushioning material 124 is provided on the inner surface of the foot portion F, approximately in the center of the sole of the foot, with a width approximately equal to the width of the foot portion F and a length of 1 / 2 to 2 / 3 of the length of the foot portion F. The cushioning material 124 physically supports the arch of the foot, thereby distributing the load on bony prominences such as the toes, metatarsal heads, and heels, and thus preventing ulcer formation.
Owner:GUNZE LTD +1

Orthodontic insert

ActiveJP2026017512AInsolesMedical sciencePlantar surfaceOrthodontic spacer
To provide an orthodontic insert.SOLUTION: An orthotic insert for use in footwear may include a support shell. The support shell may include an anterior portion configured to underlie and support a plantar surface of a metatarsal head area of the user's foot, and a posterior portion configured to underlie and support a plantar surface of a heel of the user's foot. The rear portion may include a heel post to provide frontal plane stabilization to the user's foot in use. The heel strut may define a peripheral structure having a hexagonal or other geometric shape that extends in a downward direction from the bottom surface of the support shell and terminates in a substantially planar footwear engaging surface.SELECTED DRAWING: Figure 1A
Owner:NORTHWEST PODIATRIC LABORATORY INC

Sea salt insole

The utility model discloses a kind of sea salt insoles, including pad body surface layer and pad body bottom layer, the pad body surface layer is set on pad body bottom layer, the pad body surface layer edge and pad body bottom layer edge fixed connection, the pad body bottom layer is respectively provided with accommodating pad corresponding metatarsal head support area, forefoot area and root bone support area, the accommodating pad is circularly set, textile fiber coated with sea salt powder is provided in the accommodating pad, the pad body surface layer is respectively provided with exposure port corresponding metatarsal head support area, forefoot area and root bone support area, the accommodating pad is greater than exposure port setting, the accommodating pad center is set on the edge of metatarsal head support area, forefoot area or root bone support area, the pad body bottom layer is provided with embedded hole corresponding accommodating pad center, and the accommodating pad center is connected with embedded hole. Its simple structure, layout is reasonable, can be replaced according to requirement supplement, with good use effect.
Owner:温州多源鞋业有限公司

Elevation Apparatus, System and Methods of Use

An elevation apparatus to elevate a bony prominence of a user such as a heel, ankle, foot, metatarsal, elbow, hip, sacrum, shoulder blade or other bones. The elevation apparatus including a permeable skin-compatible adhesive layer, an absorbent layer, a protective layer and at least one inflatable or prefilled air bladder including at least one aperture configured for the selected bony prominence.
Owner:SUN SCIENTIFIC INC