38 results about "Tarsus Bone" patented technology

An ankle splint product includes an ankle splint for being custom-formed to the shape of an ankle while flexible and upon hardening providing a rigid, supporting custom fit. The ankle splint product includes an outer container formed of moisture-impervious material, and first and second flexible ankle splint segments positioned in the container in substantially moisture-free conditions and sealed therein against entry of moisture until use. Each of the first and second ankle splint segments includes an elongate substrate and a reactive system impregnated into or coated onto the substrate. The system remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to moisture to form a rigid, self supporting structure. An elongate, flexible protective pad is positioned on one side of the substrate along its length to provide a cushioning barrier between the substrate and the skin of a patient when the ankle splint is in use. An elongate outer cover covers the substrate on the side opposite the protective pad. A flexible cushion insert has a first major surface overlying the protective pad and an opposing second major surface adapted for residing adjacent an ankle bone of the patient. The cushion insert cooperates with the protective pad to further protect and cushion the ankle of the patient when the ankle splint is in use.

The invention discloses the foot of a humanoid robot and a control method of the foot of the humanoid robot. The foot of the humanoid robot is characterized in that an upper disc body is arranged to serve as an ankle bone, the rear end face of the ankle bone is a plane, the front end face of the ankle bone is in a V shape when the front end face of the ankle bone is overlooked, an outer front end face body and an inner front end face body are symmetrically arranged on the V-shaped front end face, the ankle bone is supported in a three-force-point mode through three rod pieces on the rear end face and the front end face of the ankle bone, the three rod pieces refer to a heel bone, an inner metatarsal bone and an outer metatarsal bone, a rear planta pedis stress triangle is formed with the lower end of the ankle bone as a rear vertex and a point head facing backwards, and the upper end face of the ankle bone is connected with the lower limbs of the robot through ankle joints. According to the foot of the humanoid robot and the control method of the foot of the humanoid robot, linear driving devices are arranged on the lower limbs of the robot, all components are driven through flexible ropes according to set actions, and thus rotation of the foot joints of the robot is driven and controlled.

A system for preparing an ankle bone to receive an ankle prosthesis is provided. The system includes a patient specific cutting guide that has an anterior surface, a posterior surface, and at least one cutting feature extending through the guide from the anterior surface. The posterior surface comprising a first protrusion or other member that extends from a first end fixed to the posterior surface to a second end disposed away from the first end of the first protrusion. The posterior surface has a second protrusion or other member that extends from a first end fixed to the posterior surface to a second end disposed away from the first end of the second protrusion. The first and second protrusions are spaced apart and have a length such that when the patient specific cutting guide is coupled with first and second bone references, which can include bushings implantable in bones, a clearance gap is provided between the posterior surface and the ankle bone.

The invention relates to a combination type ankle joint three-dimensional traction fixing frame. The fixing frame mainly comprises a horseshoe-shaped ring and four carbon fiber connecting rods. Three Kirschner pins are locked through pin locking screws, pass through heel bones, shin bones and metatarsal bones three-dimensionally and are fixed on the horseshoe-shaped ring and the four carbon fiberconnecting rods; and one or more ejector pins are locked through the pin locking screws to fix an inner ankle, an outer ankle and a rear ankle of an ankle bone. The fixing frame has a compact and stable structure, is convenient to use and detach and has low using cost, ankle joints and fracture blocks are firmly fixed, periosteum is not required to be stripped by a surgery, and the healing of damaged ankle joints is facilitated.

The invention discloses a plantar pressure measuring device and method for exoskeleton control. The device comprises a measuring device pressure shoe; four pressure sensors (202) are arranged inside the measuring device pressure shoe respectively at positions corresponding to metatarsal bones and ankle bones and generate micro weak electrical signals; a central processing unit acquires and processes the micro weak electrical signals; exoskeleton plantar pressure is measured by adopting a method of different weights aiming at different pressure sensor data in different modes. The plantar pressure measuring device and method disclosed by the invention have the benefits that the exoskeleton plantar pressure at a main forced part is acquired by utilizing the four thin film pressure sensors at a sole, so that the use of a large amount of sensors is avoided, the structure is simple, and the cost is low; the different modes when a wearer wear exoskeletons to stand and walk are divided, different processing is performed aiming at the data in the different modes, an algorithm is simple, the complicated processing of the data when a large amount of sensors are used is avoided, and the processing speed of the data is improved.

The invention relates to a combined tumor-type ankle joint prosthesis which comprises an ankle bone side component, a polyethylene liner and a top component. Three backward down inclined ridges are formed at the bottom of the ankle bone side component in a projecting manner, an arched sliding surface is formed at the top of the ankle bone side component, a T-shaped projection is transversely arranged at the top of the polyethylene liner, the bottom of the polyethylene liner is recessed inwards to form a joint fossa for containing the sliding surface, the top component is provided with an upper connecting surface for connecting the top component with a tibial prosthesis, a T-shaped groove for containing the projection is transversely formed in the bottom of the top component, five through holes for repairing ligaments on the inner side and the outer side of an ankle joint are formed in the top component in a front and rear penetrating manner, the inner side of the top component extends downwards to form a projecting ridge, and the projecting ridge is abutted to the inner side face of the polyethylene liner. The prosthesis is reasonable in structural design, preparation and surgical operation are facilitated, stability of an artificial ankle joint is enhanced, loading and moving functions of the ankle joint are restored, and the prosthesis is suitable for limb salvage treatment of distal tibial malignant tumors.

An ankle support apparatus which is designed to protect the lateral maleolus ankle bone and the medial maleolus ankle bone. A cuff band is wrapped around the leg and a pair of elongated strap members are supported on the cuff band and on the shoe worn on the leg so that one elongated strap member is in front of the ankle bone and the other elongated strap member is behind the ankle bone.

The present disclosure provides methods and devices that allow for rotational control, compression and fusion of the ankle as required for treatment while providing additional mobility in the movement of the foot. The devices of the present disclosure are configured to go through the talus and tibia for fusion of ankle joint while avoiding the calcaneus and subtalar joint. According to a first aspect, exemplary embodiments of the present disclosure are curved to provide sufficient area for rotational control and compression of the ankle bones. According to a second aspect, exemplary embodiments of the nails of the present disclosure are configured to be placed at an angle with respect to the intramedullary canal.

An ankle brace has a stirrup with a flat bottom portion and a first and second upright leg. Each of the first and second upright legs has an upper end and a lower end, the upper end having a circular opening therethrough and the lower end attached to the flat bottom portion. First and second pivot legs, each having a circular opening therethrough, are removeably and rotatably connected to the first and second upright legs respectively. First and second leg extensions are removeably connected to the first and second pivot legs, respectively. When connected, the circular openings in the pivot legs overlap the respective circular openings in the upright legs, and each pivot leg is rotatable about an axis through and perpendicular to the pivot leg circular opening. The circular openings in the first and second upright legs are positioned and sufficiently large to allow at least a portion of the malleolus bone of an ankle to protrude therethrough.

A device in the form of a slipper which may be worn on foot (primarily) or hand which assists a wearer in entering a wetsuit by reducing friction between the wetsuit material and the wearer's skin. The device has a sole portion and top portion stitched, glued or otherwise sealed at the edges to form a foot or hand pocket. The device is tapered at the toe to prevent snagging during wetsuit entry. The device is open at the heal and contoured around the ankle bone to prevent excess material from hindering wetsuit entry, and to prevent the wearer from grabbing the material through the wetsuit, when commonly gripping the wetsuit on either side of the ankles in order to push the foot through the opening. A preferred embodiment includes both top facing and bottom facing pockets to assist a wearer in grabbing and pulling the device off the foot or hand once the device is through the wetsuit ankle or wrist opening. Once the wearer has inserted his foot through the opening, the slipper provides protection from concrete, sand or dirt, and helps keep the foot conveniently free of dirt and pebbles. The device is easy to carry, easy to store, and reusable. It won't distort its shape even after many uses. It does not absorb water or allow dirt, sand or pebbles to cling to its surface. It can be made in a variety of waterproof, friction reducing and durable materials such as but not limited to nylon, silicone, and tough plastic.

The invention relates to a tibial talocalcaneal joint fusion screw placement guider which comprises a screw placement guider, wherein the screw placement guider comprises a guide plate and a mounting support; the guide plate is an arc-shaped strip plate, the guide plate comprises a front guide section, a middle arc-shaped section and a rear guide section, a 90-degree angle is kept between the front guide section and the rear guide section, the two ends of the middle arc-shaped section respectively bend for 90 degrees and are connected with the front guide section and the rear guide section, and screw placement mounting holes distributed in one row are distributed at the middle part of a plate; and the mounting support is U-shaped, and two tail ends of the U-shaped mounting support are hinged with the two sides of the guide plate. The guider provided by the invention can carry out accurate positioning on the bone surface of calcaneus, the operation is convenient, the tibia, ankle bone and calcaneus can be accurately connected together, and thus the operation success rate is improved.

The invention relates to an absorbable ankle fusion device, which comprises a prismatic hollow pile frame made from polymer materials capable of being absorbed by the human body, and a shoulder frame matched with the pile frame and made from polymer materials capable of being absorbed by the human body; wherein the lateral surface of the pile frame is provided with a bone graft contact hole and anutrient foramen; a penetrating hole spliced with the pile frame is arranged in the middle of the shoulder frame, the two ends of the shoulder frame are respectively provided with two wings which bend downwards and are respectively arranged in gaps between a malleolus medialis and an ankle bone and between a lateral malleolus and the ankle bone, and two wings of the shoulder frame are respectively provided with bone graft contact holes and nutrient foramens. The absorbable ankle fusion device has the advantages of simple structure, convenience for operation and use safety, can realize the interior fixation between a tibia and the ankle bone and enable a grafted autologous bone to fully contact a surface of a new bone wound, which is beneficial to the formation of bone fusion.

The invention discloses a preposed tibiotalar joint fusion anatomy, locking and compression internal fixation device. The preposed tibiotalar joint fusion anatomy, locking and compression internal fixation device comprises a tibia fixing portion, a deformation portion and an ankle bone fixing portion. The tibia fixing portion, deformation portion and ankle bone fixing portion are connected sequentially. The tibia fixing portion is in arc connection with the ankle bone fixing portion by the deformation portion. The plate angle between the tibia fixing portion and the ankle bone fixing portion is 100-110 degrees. Screw holes vertical to the plate face are formed in a plate of the tibia fixing portion. The width direction of the deformation portion protrudes outwards and widens in an arc shape. Deformation portion locking screw holes are formed in the deformation portion. One side of the locating plane of the plate face of the connecting portion between the ankle bone fixing portion and the deformation portion protrudes outwards. Two locking screw holes are formed in the ankle bone fixing portion plate surface. One axial direction of the locking screw holes is not parallel to the normal direction of the ankle bone fixing portion plate surface. One axial direction near the front outer edge is parallel to the normal direction of the ankle bone fixing portion plate surface. Human engineering fitting design and optimized screw angle are adopted, stress on an internal fixing device is reduced, fixation stability is improved, and a certain function of an ankle joint is reserved.

The invention discloses a piece of auxiliary pressing equipment for ankle joint scanning. The equipment is characterized in that position control plates and a foot support are used to fix a calf and a foot; and a pressing device is then used to apply certain pressure laterally in the direction perpendicular to the calf so as to adjust the position of an ankle joint, and thus an introversion angle and foot forward displacement of the ankle joint are controlled. In this way, introversion and extroversion motion of a coronary face of the ankle joint and motion of the ankle joint on a sagittal face under the stress position can be obtained; an anterior drawer test and an ankle bone inclining test can be implemented; and a clear ankle joint dissection view angle can be provided for scanning under X rays. The foot support, the position control plates and the pressing device are matched with positioning holes through positioning parts, and are disposed on a base in a dismountable manner; and through connection between the positioning parts and the different positioning holes, the positions of the foot support, the position control plates and the pressing device on the base can be adjusted according to different users' situations, so that the equipment has high universality and can be assembled easily. Edges of the auxiliary pressing equipment for the ankle joint scanning are polished into round corners, so that use of the equipment is safer and more comfortable.

A shoe insole, including a sole base, a sole covering layer and several pillow-type layers distributed on the surface of the sole, wherein these layers are arranged in the support area that affects the contraction of the foot muscles, and the first pillow-type layer is located at the forefoot joint area, the second pillow layer is located in the metatarsal / tarsal transition zone, and the third pillow layer is located in the metatarsal / heel transition zone. Each pillow layer itself is divided into discrete layers that are arranged laterally on the sole surface and are separated from each other. The convex disk-shaped block, and the pillow-type layer forms a plane with the surface of the sole base. The fourth pillow-type layer is located in the heel area and is convex disk-shaped. It is best to be approximately elliptical in the transverse direction of the sole and is in contact with the surface of the sole base. Forming a plane, the fifth occipital layer is sickle-shaped and is located in the arch area. Alternatively, the surface of the pillow layers is raised relative to the plane of the surface of the sole base, and the fourth pillow layer and the fifth pillow layer are raised above the plane of the shoe base and the latter are located in the arch area .

The invention discloses a clinical intelligent decision supporting system for bone fracture around ankles, and relates to the technical field of medical decision systems. The clinical intelligent decision supporting system comprises an information input module, a diagnosis module, a decision module and a disease case database; the diagnosis module comprises a bone fracture around ankle typing module which types bone fracture around ankle according to the examination result in the information input module in combination with the clinical bone fracture around ankle typing standard; the bone fracture around ankle typing module types ankle bone fracture; and the ankle bone fracture is typed based on typing standards of Lauge-Hansen typing and / or Danis-Weber typing. The system can make the patient and the patient family control and track the disease condition and the diagnosis and treatment scheme of the patient in real time.

The invention discloses a high-shape-adaptability bionic cooperation joint between shin bone and ankle bone. The upper part of the cooperation joint (1) is a shin bone cooperation surface (2) cooperating with a shin bone joint surface, the lower part of the cooperation joint is an ankle bone cooperation surface cooperating with an ankle bone joint surface, the shin bone cooperation surface (2) isa concave globular arc surface designed through imitating human body biomechanics, and a lower convex V-shaped fin (4) cooperating with the ankle bone joint surface is arranged on the ankle bone cooperation surface (3). The high-shape-adaptability bionic cooperation joint between shin bone and ankle bone is designed based on the human body biomechanics principle, so that the whole and the cooperation surfaces of the bionic cooperation joint conform to the characteristics of an original bone structure; and besides, the situations that the cooperation of the bionic cooperation joint with the shin bone, the ankle bone or replacement components is proper, sliding is smooth and round, and the stability is better are guaranteed, so that long-term stable work of the bionic cooperation joint afterreplacement is maintained, and pain of a surgery recipient is reduced. The high-shape-adaptability bionic cooperation joint between shin bone and ankle bone disclosed by the invention is convenient in clinical use, and is convenient to popularize and apply, the postoperative functions of the patient is well restored, and the safe use period is greatly prolonged.

The invention provides a protective device for a foot ankle joint ligament, wherein the protective device includes an ankle brace, a foot arch pad, a plurality of fixing structures and ankle protection pads. The ankle brace is worn at a foot ankle joint of a patient; the foot arch pad is placed at the bottom of the ankle brace and at the foot sole position of the patient; the outer side of the ankle brace is wrapped with a group of fixing structures and the ankle protection pads, wherein the ankle protection pads are attached to a medial malleolus, lateral malleolus and foot contour of the patient respectively; with a biomechanics principle, and through the support of the foot arch, the stress state of the foot ankle bone joint and the ligament is improved, the foot ankle bone joint ligament is protected, and the secondary injury is reduced; the protrusion of bones is fully utilized, the position of the protective device is fixed, and slippage failure is avoided. The effects of increasing the ankle joint stability and preventing and treating sprain of ankle joint are achieved, and new treatment and protection measures are provided for vast patients with foot ankle joint ligamentousinjury and after foot ankle surgery.

The invention relates to the technical field of ankle joint assisting equipment, and discloses an intelligent ankle assisting device. The intelligent ankle assisting device comprises a bottom plate located at the foot sole, first supporting pieces located below the ankle bone and connected with the bottom plate and second supporting pieces located above the ankle bone; the first supporting piece is provided with a first elastic piece and a first accommodating groove for accommodating the first elastic piece, the bottom of the first elastic piece is connected to the groove bottom of the first accommodating groove, the second supporting piece is provided with a first linear actuator, and a push rod of the first linear actuator penetrates through a groove opening of the first accommodating groove and is connected with the top of the first elastic piece; the bottom plate is provided with a first sensor, the first sensor is in communication connection with the first linear actuator, and when the first sensor senses the pressure of the foot sole, the push rod of the first linear actuator extends out to compress the first elastic piece so that the first elastic piece can support the second supporting piece. Through the arrangement, the problems are solved that the ankle bone needs to support all the weight of the parts above the ankle and is easily sprained, and therefore people cannot normally walk.

The invention discloses a plantar pressure measuring device and method for exoskeleton control. The device includes a measuring device pressure shoe, and the inside of the measuring device pressure shoe is respectively provided with four pieces of pressure sensors ( 202), the pressure sensor (202) generates a weak electrical signal, and the central processing unit collects and processes the weak voltage signal; corresponding to different modes of different pressure sensor data, different weights are used to measure the exoskeleton foot Bottom pressure. The present invention uses four thin-film pressure sensors on the soles of the feet to collect the pressure of the main stress-bearing parts of the soles of the exoskeleton, avoids the use of a large number of sensors, has a simple structure, and is low in cost; different modes for the wearer to stand and walk when wearing the exoskeleton Divide and process data differently in different modes. The algorithm is simple, which avoids complex data processing when using a large number of sensors, and improves the data processing speed.

The invention discloses a two-freedom-degree limiting exoskeleton ankle joint and the application thereof. The lower end of a calf rod is fixedly connected with the upper end of an ankle joint upper component. The ankle joint upper component is hinged to an ankle joint lower component in an approximate spherical mode through a switch-over ball. The lower end of the ankle joint lower component is fixedly connected to a sole. The two sides of the switch-over ball are both provided with circular-arc-shaped grooves which are smaller than 360 degrees and larger than 180 degrees. The grooving directions of the circular-arc-shaped grooves in the two sides are perpendicular and orthogonal to each other. The lower end of the ankle joint upper component and the upper end of the ankle joint lower component are each a plier body with a fixed circular-arc ring structure, and the plier bodies are embedded into the circular-arc-shaped grooves in an opening and closing mode. According to the two-freedom-degree limiting exoskeleton ankle joint and the application thereof, plantar flexion, dorsal flexion, introversion and extroversion movements of the ankle joint in the same center are achieved only through the extremely simple structure and convenient matching, and each freedom degree is limited by different angles.

The invention discloses an adjustable temporary ankle-foot orthopedic support, which comprises a first positioning frame, a second positioning frame and a connecting rod assembly for connecting the first positioning frame and the second positioning frame together. The first positioning frame comprises vertical supporting pieces, a bearing piece, a pair of calcaneus positioning pieces, a pair of ankle bone positioning pieces, a first adjusting assembly and a second adjusting assembly. The pair of calcaneus positioning pieces is detachably fixed to the two vertical supporting pieces through first adjusting assembly respectively. The pair of ankle bone positioning pieces is detachably fixed to the two vertical supporting pieces through the second adjusting assembly respectively. The second positioning frame comprises a front sole bottom supporting piece, a front sole top positioning piece and a third adjusting assembly used for detachably and fixedly connecting the front sole bottom supporting piece and the front sole top positioning piece. The positions of related components can be flexibly adjusted, so that the related components can be more adaptive to legs and feet of a patient, and the legs and the feet of the patient can be kept in the optimal orthopedic state. The invention further discloses a manufacturing method of the ankle-foot orthopedic device.

The invention relates to the technical field of ankle joint assistance equipment, and discloses an automatic ankle aid. The automatic ankle aid comprises a bottom plate located at the foot sole, a first supporting piece located under the ankle bone and connected with the bottom plate and a second supporting piece located above the ankle bone, wherein the first supporting piece is provided with a first elastic piece and a first containing groove used for containing the first elastic piece, the bottom end of the first elastic piece is fixedly connected to the groove bottom of the first containing groove, the second supporting piece is provided with a first supporting rod, and the bottom end of the first supporting rod penetrates through a notch of the first containing groove to be connectedwith the top end of the first elastic piece. When a person walks normally, the first supporting rod is forced to squeeze the first elastic piece, so that the second supporting piece supports the ankle, thereby relieving the pressure on the ankle; the first supporting piece and the second supporting piece protect the ankle to prevent ankle sprain. Therefore, the problems are solved that the ankle bone needs to support all the weight above the ankle, which easily causes sprain and makes the person unable to walk normally.

The invention provides comfortable ballet shoes with flywheels. Each comfortable ballet shoe with the flywheels is provided with a comfortable shoe body, a welt is arranged at the upper end of the shoe body, the welt is tightly and fixedly tied to the ankle bone, toe-between belts are arranged among the toes and pass through the toes to firmly hold the instep, a toe bag is arranged at the frontmost ends of the toes, the bag can play the role of supporting the toes, so that the toes slide comfortably, a foot sole sliding wheel is mounted at the foot sole center part of the shoe body, and a toetip sliding wheel is mounted at the toe tip part of the shoe body. The original manner that the toes rotate, the toe tips touch the ground, and thus the toes suffer from pain is liberated; and from the aspect of aesthetics, the ballet shoes are diversified in color, are comfortable and elastic, are attractive and reasonable in price, and have a very good promotion value.

The invention relates to a combined tumor-type ankle joint prosthesis which comprises an ankle bone side component, a polyethylene liner and a top component. Three backward down inclined ridges are formed at the bottom of the ankle bone side component in a projecting manner, an arched sliding surface is formed at the top of the ankle bone side component, a T-shaped projection is transversely arranged at the top of the polyethylene liner, the bottom of the polyethylene liner is recessed inwards to form a joint fossa for containing the sliding surface, the top component is provided with an upper connecting surface for connecting the top component with a tibial prosthesis, a T-shaped groove for containing the projection is transversely formed in the bottom of the top component, five through holes for repairing ligaments on the inner side and the outer side of an ankle joint are formed in the top component in a front and rear penetrating manner, the inner side of the top component extends downwards to form a projecting ridge, and the projecting ridge is abutted to the inner side face of the polyethylene liner. The prosthesis is reasonable in structural design, preparation and surgical operation are facilitated, stability of an artificial ankle joint is enhanced, loading and moving functions of the ankle joint are restored, and the prosthesis is suitable for limb salvage treatment of distal tibial malignant tumors.

The invention relates to an absorbable ankle fusion device, which comprises a prismatic hollow pile frame made from polymer materials capable of being absorbed by the human body, and a shoulder frame matched with the pile frame and made from polymer materials capable of being absorbed by the human body; wherein the lateral surface of the pile frame is provided with a bone graft contact hole and a nutrient foramen; a penetrating hole spliced with the pile frame is arranged in the middle of the shoulder frame, the two ends of the shoulder frame are respectively provided with two wings which bend downwards and are respectively arranged in gaps between a malleolus medialis and an ankle bone and between a lateral malleolus and the ankle bone, and two wings of the shoulder frame are respectively provided with bone graft contact holes and nutrient foramens. The absorbable ankle fusion device has the advantages of simple structure, convenience for operation and use safety, can realize the interior fixation between a tibia and the ankle bone and enable a grafted autologous bone to fully contact a surface of a new bone wound, which is beneficial to the formation of bone fusion.