110 results about "Toe Joints" patented technology

The invention relates to a dynamic below-knee artificial limb containing flexible dynamic ankle joints and toe joints, which is characterized by comprising an ankle joint moving mechanism and a toe joint moving mechanism, wherein the ankle joint moving mechanism comprises a back sole, an ankle joint supporting frame, shank baffle plates and an ankle joint motor; the ankle joint supporting frame is fixed at the upper part of the back sole, and the upper end of the ankle joint supporting frame is articulated with an ankle joint shaft connecting frame connected between two shank baffle plates; the ankle joint motor is fixedly connected between the two shank baffle plates, the output end of the ankle joint motor is fixedly connected with one end of an ankle joint screw through a shaft coupling, and the other end of the screw is connected with the back sole through an ankle joint spring mechanism; the toe joint moving mechanism comprises a front sole and a toe joint motor, wherein the front sole is articulated with the back sole, and the toe joint motor is fixedly connected with the back sole; an output shaft of the toe joint motor is fixedly connected with one end of a toe joint screw through a shaft coupling, and the other end of the screw is articulated with a toe joint screw fixing frame; and the toe joint screw is connected with the front sole through a toe joint spring mechanism. The dynamic below-knee artificial limb can be widely applied to the researches on the flexible dynamic joints of artificial limbs and serves the handicapped.

An orthosis comprising a dynamic, flexible, elastic stiffener that is configured to extend across a joint. The stiffener is configured to extend across a joint in a first configuration, wherein the stiffener is preferably substantially planar, and a second configuration when a patient's muscle is under contraction such that the stiffener allows some joint movement but resists flexion of the joint to impede joint movement. The stiffener rebounds to its first configuration after the muscle contraction has terminated. The orthosis may be used to impede the movement of any joint, including a wrist joint and finger joints, an elbow joint, a knee joint, and an ankle joint and toe joints. Preferably, the flexible stiffener is made from a heat treated and tempered spring steel so that is has desirable dynamic and elastic properties.

Devices and methods are disclosed for the fusion of joints (particularly finger joints or toe joints) in a bent (or angled) position. The device is not cannulated, straight and inserted into the joint in its straight configuration. The device is configured to have a thicker portion at its proximal end than at its distal end. The device is preferably inserted into a finger joint that is already bent at an angle, and the thin, distal end is configured to screw into and attach to the bone of second joint thereby fusing the first joint to the second joint.

The insole (1) from the upper side provided with shaping corresponding to the form of impression of bottom part of a human foot sole with recess (5) for the big toe joint with smooth toe section (10), and from the bottom side with shaping corresponding to the bottom part of a human foot sole with smooth toe section (10), while it in a flexible manner supports all parts of the foot sole between the toe section (10) and the heel section (1000). In the heel section (1000) there is performed recess (1201) or depression (120), in which the heel recession (12) is performed.

A walking stilt includes a shoe platform and a floor platform connected by a support. The floor platform includes a heel section pivotally attached to the support and a separate and independently pivotable toe section pivotally attached to the support. The construction mimics an ankle joint and toe joints to provide a smooth rolling action while walking.

Devices and methods are disclosed for the fusion of joints (particularly finger joints or toe joints) in a bent (or angled) position. In certain embodiments, the device is pre-bent and inserted into the joint in its pre-bent configuration. Alternatively, the device may be configured to have a first position wherein it is bent and a second position wherein it is straight. In that case, the device is preferably straightened by inserting a K-wire through a cannula in the device, and the device can be inserted into the joint in its straight position. Once inserted, the device is permitted to move to its bent position, which moves the joint to a bent position. In one embodiment the device moves to its bent position when the K-wire is removed.

A process and system for performing orthopaedic surgery with the use of computer systems and robotic assistance to remove bone, bone cement, and a bone prosthesis, typically a bone prosthesis used in hip replacement surgery, knee replacement surgery, and the like. The process for replacing one or more bone prostheses using a robotic system includes receiving image data comprising an image of each bone, including at least one prosthesis implanted within each bone; creating three-dimensional models of the prosthesis, and the bone; creating a plan for positioning new prostheses within the bone; determining the location and amount of bone and any non-bone material to be removed for the new prostheses; and removing the bone prosthesis from the bone. The inventive process may be used for the replacement of hip joints, shoulder joints, ankle joints, wrist joints, finger joints, toe joints, or other joints.

The invention relates to a multi-joint leg structure of a biped walking robot. The multi-joint leg structure comprises a foot sole movement mechanism, an ankle joint movement mechanism and a leg joint movement mechanism; toe joints are hinged with a foot sole by shafts; a shank lower joint support is hinged with an inner support by a shaft; the inner support is hinged with an ankle joint support plate; the foot sole movement mechanism can be used for controlling the toe joints to make a movement of lifting toes around the shafts through which the toe joints are hinged with the foot sole, so that the movement of lifting the toes is realized; the ankle joint movement mechanism can be used for controlling the foot sole to make a foot swing movement to the left or to the right, and also can be used for controlling the foot sole to move forwards or backwards, so that a foot sole joint of the robot can move in multiple degrees of freedom; the leg joint movement mechanism can be used for controlling the joints of the shank to realize a clockwise or anticlockwise leg raising movement, and also can be used for controlling the shank to make a rotational motion around the thigh. Therefore, after the multi-joint leg structure of the biped walking robot is adopted, the robot can make a biped walking movement since the leg raising movement is realized in the multiple degrees of freedom by the joints of the leg of the robot, and the biped walking of the humanoid robot is more flexible.

The invention relates to a rehabilitation exercise device for a patient, and effectively solves the problems that movement of lower limb joints cannot be carried out in one step, and the lower limb joints of a patient can be subjected to secondary damage when the joints are moved. According to the technical scheme, the device comprises a support plate for supporting a lower leg of the patient andan L-shaped plate for supporting a foot of the patient; and the upper end of a vertical plate of the L-shaped plate is hinged with a pressing block. When the supporting plate moves left and right horizontally, a hip joint and a knee joint of the patient are moved; when the supporting plate moves left and right horizontally, the L-shaped plate is driven to swing left and right through first gears and incomplete gears, so that an ankle joint of the patient is moved; and when the L-shaped plate swings left and right, the pressing block is driven to swing left and right, so that toe joints of thepatient are moved. The L-shaped plate and the pressing block are respectively and fixedly provided with finger pressing plates, so that when the ankle joint and the toe joints of the patient are moved, the finger pressing plates are used for massaging a sole of the patient, blood circulation of the foot of the patient is promoted, and good help for rehabilitation exercise of the patient is facilitated.

The invention provides a multifunctional comfortable sports shoe sole. The multifunctional comfortable sports shoe sole is provided with a shoe sole body, a shock absorption column arranged on the big toe joint of the shoe sole body, a first breathable pad covering the toes of the shoe sole body, and a second breathable pad covering the heel of the shoe sole body in a sealing mode. A first containing cavity and a second containing cavity are formed in the positions, on the toes and the heel, of the shoe sole body respectively, vent holes are formed in the left side and the right side of the first containing cavity, multiple first breathable vertical columns and multiple breathable outer pipes are arranged in the first containing cavity and the second containing cavity respectively, trapezoidal grooves are formed in the upper ends of the first breathable vertical columns, the lower ends of the interiors of the breathable outer pipes are fixedly connected with elastic air bags, and openings of the elastic air bags are formed upwards. The shock absorption effect is achieved through the shock absorption column, and ventilation between the shoe sole and the exterior is accelerated through the breathable pads.

A foot sliding prevention product utilizes a unitary pad shaped to conform with the tapered toe section of a shoe, particularly a women's high heel shoe. The pad is sized to extend from the toe section of the shoe to an area short of the shoe's arch section. An arcuate shaped ridge member extends from one side of the pad to the other side. The ridge member is configured to be positioned within the toe joints of the wearer to prevent the foot from sliding down and forward in the shoe.

The invention discloses a humanoid robot two-freedom-degree parallel-connection shock absorption mechanical foot, and belongs to the field of humanoid robots. The mechanical foot comprises an upper metatarsal bone, an ankle shaft arranged on the upper metatarsal bone, a lower metatarsal bone, four shock absorption guide columns, a toe joint shaft, a big toe, a second toe, a third toe, a fourth toe, a small toe, a tensile spring A, a tensile spring B, and a toe spring for connecting the toe joint shaft with the lower metatarsal bone. A shank rod is arranged on the ankle shaft. The tensile spring A and the tensile spring B are symmetrically arranged on the two sides of the shank rod. The four shock absorption guide columns are of the same structure and each comprises a universal joint arranged on the upper metatarsal bone, a connecting rod, a sleeve arranged on the lower metatarsal bone, a tensile spring arranged in the sleeve, and a slide block. The initial state of the shank rod is vertical, and accordingly the tensile spring A and the tensile spring B are in a zero-force state. The humanoid robot foot is simple in structure and has two movement freedom degrees, a shock absorption function and a parallel-connection mode.

The invention relates to road roller skates for travelling on average quality roads, comprised of a semi-rigid high-top-shoe (3) fixed to a supporting sole (4) at a height of 50 mm above the ground and fitted with angle brackets (4b and 4c) to which the rotation axis of a front wheel (1) is fixed, this front wheel having a large diameter (150 to 300 mm) and being situated to the outside of the foot next to the toe joints, and to which the rotation axis of a rear wheel (2) is fixed, this rear wheel having a medium diameter (100 to 150 mm) and being situated to the inside of the foot next to the heel. The large diameter of the wheels makes it possible to handle defects in the terrain. This arrangement confers its stability to the skate, and front and rear rubber blocks (6, 5) placed under the sole (4) can be pressed against the ground by rotating the knees. Optionally, the front wheel (1) can be slightly tilted underneath the sole (4), the assembly can be adapted to a purchased in-line skate whose wheels have been removed, the characteristics of the diameter and material of the wheels being adjustable.

The invention relates to a flexible passive foot system based on bionics, comprising a flexible toe joint and a lateral cushioning shock absorbing layer, which enables the foot to have the functions of stable support, cushioning shock absorbing and energy storage. The flexibility of the toe joint is provided by a compression spring parallel to the sole of the foot, and the toe portion is connectedto the sole of the foot by a crank linkage mechanism. The shock-absorbing springs are symmetrically distributed in the upper and lower layers of the foot, which is helpful to enhance the stability ofthe robot when walking on uneven ground, and can effectively eliminate the impact of the ground on the foot when walking. The invention realizes the degree of freedom of flexion and extension of thetoe joint and the lateral passive degree of freedom of the foot through the compression and extension functions of the compression spring, and simultaneously utilizes the energy storage characteristics of the spring to enable the foot to have the functions of cushioning, shock absorption and energy saving, so that the walking stability of the robot can be improved and the energy loss can be reduced. Compared with the foot structure of the traditional robot, the invention has the advantages of good imitation of human nature, high walking stability, high energy efficiency, compact structure andgood adaptability.

An orthopedic shoe appliance includes an insole, midsole or outersole of footwear; and one or more orthopedic devices disposed on the insole, midsole or outersole at one or more locations selected from the group consisting of a location under a big toe, a location under a medial longitudinal arch, a location under a lateral longitudinal arch, a location under a transverse metatarsal arch, and a location under and/or around a heel. Small wings may be attached to a part of the insole that will wrap around the medial and lateral aspects of the foot. A slit and hinge as well as changes in the flexibility of the materials allow the big toe joint to move independently of the other toes. Other pads may be applied to the top of the insole to allow for other corrections.