190 results about "Foot drop" patented technology

The invention discloses a gait phase detection apparatus with ankle joint angle self-rectification function, which comprises a shank fixing mechanism, a ankle joint angle control mechanism, a ankle joint angle measuring mechanism and a thenar pressure measuring footwear. The invention can control ankle joint motor rotation angle according to thenar pressure signal, regulate ankle joint angle for foot drop patient in weight reduction walking training, prevent the damage to foot due to the towing and impacting caused by foot drop, and improve the dorsiflexion ability of foot drop patient; a pressure sensor and an angle sensor collects thenar pressure signal and ankle joint angle signal timely, an upper computer performs fuzzy logic algorithm to realize to detect gait phase smoothly and submissively. patient with walking ability defects or normal person with some degree of gait deformity can wear the invention while walking, detect the gait phase information in walking, estimate gait recovery degree scientifically, and optimize gait training strategy.

A ministimulator is positioned adjacent to the deep peroneal nerve and electrically actuated to elicit balanced dorsiflexion, without eversion, of the ankle of a patient having foot drop.

Provided is an ankle-foot orthotic device and method for preventing foot drop of a person wearing footwear. The device includes an elongated member adapted to extend along an anterior portion of the lower leg and conforms to a portion of the dorsal surface of the foot. The elongated member is further adapted to secure to an upper outer region of the person's footwear. Securing the device to the lower leg and footwear of a person maintains the foot in a dorsiflexion position. The elongated member may include an upper portion positionable relative to an intermediate portion providing an ankle-foot orthotic device variable in length.

A foot drop support arrangement including a leg member and a strap having a first end supportable between the big toe and an adjacent end and a removable attachment mechanism for attaching the second end to the leg member whereby a user can support his or her toe end of the foot from a leg support without necessity for a shoe and with ease of installation for a foot drop patient upon getting up after sleeping.

This invention describes a multi-point soft flexible ankle foot brace support orthosis apparatus and method for compensating for weakness of the ankle and ankle / foot dorsiflexion resulting in steppage gait of foot drop comprising an ankle cuff that is securely connected to footwear by way of clips and elastic cords, allowing for natural walking motion. The connection of the ankle cuff to the shoe is secure, yet adjustable to accommodate each user's individual need and is easily fastened and unfastened for daily use.

A heel-supporting boot capable of supporting a leg of a person in a supine reclining position, such as a bedridden patient, to reduce the risk of bed sores, foot drop, etc. The boot includes a flexible and compressible body having leg and forefoot portions, a continuous cavity within the leg and forefoot portions, an anterior opening to permit a patient's foot and leg to pass therethrough into the cavity, oppositely-disposed lateral regions defined by the leg portion and separated by the anterior opening, and an adjustable closing feature for closing the anterior opening with the lateral regions. A stitch pattern is disposed along at least the forefoot rim, and preferably also the lateral rims, bounding the anterior opening. The stitch pattern is sufficiently close to the forefoot rim and optionally the lateral rims to structurally reinforce the forefoot rim and inhibit elastic and plastic deformation of the forefoot portion.

A drop foot brace includes a securing member configured to be secured to a leg of a user, a foot-receiving member and a tensioning component. The tensioning component may include an elongated element a rotatable tightening member for adjusting a tension in the elongated element and two or more support engagers associated with the elongated element. Each support engager may include a long, curved hook guide that receives the elongated element and that is configured to minimize deformation and breakage of the elongate element. In addition, each support engager may include a hook configured to engage a corresponding feature of a foot-receiving member. The foot-receiving member may comprise footwear, such as a shoe or boot, or it may be configured to enable us of the support member (and, thus, of the drop foot brace) without footwear that covers the top, or dorsal portion, of the foot. Thus, the drop foot brace may be used when an individual decides to go barefoot or when the individual wears flip-flops or other sandals. Methods for addressing drop foot are also disclosed.

A heel supporting and protective boot for bed-ridden patients who may otherwise develop pressure sores on their heel. The body of the boot is comprised of unitary exterior and interior body forms that are stitched together to combine fiber filling and an angled foam wedge. The boot additionally has sewn tube holes on both sides allowing for insertion of medical tubing, as may be necessary. The inner fabric of the boot is antibacterial and moisture absorbent, while the outer fabric is moisture repellant. The boot is fabricated with left and right “Y-straps” that provide secure upper and lower fastening of the boot as it envelops the patient's foot and lower leg. Also utilized are two “loop” straps and a T-stabilizer which stabilize the boot and keep the foot at a 90 degree angle to help eliminate foot drop. An opening at the heel of the boot, and a circular cutout in the foam wedge, allow the heel to remain exposed to air, provide proper elevation, and enhance blood circulation. The fiber / foam combination, dual fabric covering, foot positioning straps, and open heel design all work together to enhance the healing of existing ulcers, while minimizing the occurrence of foot drop and the occurrence of new pressure points.

Provided is an ankle-foot orthotic device and method for preventing foot drop of a person wearing footwear. The device includes an elongated member adapted to extend along an anterior portion of the lower leg and conforms to a portion of the dorsal surface of the foot. The elongated member is further adapted to secure to an upper outer region of the person's footwear. Securing the device to the lower leg and footwear of a person maintains the foot in a dorsiflexion position. The elongated member may include an upper portion positionable relative to an intermediate portion providing an ankle-foot orthotic device variable in length.

The invention discloses a wearable intelligent foot drop corrector and a correction method. The invention realizes correction by adopting a processing unit to receive and process the sensing signals returned by a tilt sensor and pressure sensors, convert the shank tilt angle signal returned by the tilt sensor into a value corresponding to the shank tilt angle, compare the processed shank tilt angle value and the preset tilt angle switching threshold, simultaneously monitor whether the pressure signals returned by the pressure sensors arranged at the heels of the user bear the weight pressure of the user in real time and send an electric pulse stimulation signal to a simulation circuit to trigger a simulating electrode to generate simulated current when the measured value of the tilt sensor reaches or is more than the opening threshold and the pressure sensors arranged at the heels of the user bear the weight pressure of the user. The corrector has the characteristics of simple structure, convenient use, obvious effect and low cost and is suitable for being popularized in the field of foot drop treatment.

A traction device for applying traction to a patient's leg while supporting the patient's foot to avoid foot drop and heel or lateral malleolar pressure ulcers. The device includes a body having forefoot and lower leg portions, a continuous cavity within the forefoot and lower leg portions, and an anterior opening sized to permit a patient's foot and lower leg to pass therethrough into the cavity. The body supports the patient's lower leg so that the patient's heel is suspended within the cavity. Elements adjustably close the anterior opening and traction straps are removably attached to lateral regions of the body and extend from the forefoot portion. The interior surface of the cavity provides a sufficiently high friction interface with the patient's lower leg to prevent sliding of the body on the lower leg when full traction loads are applied through the traction straps.

The invention discloses an active driving ankle foot orthosis with a plantar pressure detection function. The active driving ankle foot orthosis comprises a shank fixing component, a foot sensing component and an active driving component. The active driving component drives a driving bevel gear through a direct current motor; the driving bevel gear is meshed with a driven bevel gear; the driven bevel gear is mounted on a transmission shaft; a synchronous pulley, a synchronous belt and a tensioning screw are respectively formed at two ends of the transmission shaft. Seven film pressure sensors and an accelerometer are arranged in the foot sensing component. The active driving ankle foot orthosis has the advantages that on one hand, an intelligent pressure sensing foot is designed according to body bionics, a sensing heel and a sole are mutually connected through a spring steel sheet, the segmented structure of a human foot is simulated, and toes and the sole can be freely bent during walking, and on the other hand, active driving free degree is designed on the sagittal plane of an ankle joint, foot drop of a patient is prevented, meanwhile, power for the patient to go ahead is effectively provided through the driving of the direct current motor, and the walking load of the patient is reduced.

The invention discloses a wearable quasi-passive ankle joint exoskeleton recovery device. An excising recovery walking assisting ankle joint exoskeleton system is normally an active driving system, the forced effect on the human body exists, the safety performance is poor, energy dissipation is large, and the gravitational potential energy of the human body is not sufficiently used. The wearable quasi-passive ankle joint exoskeleton recovery device comprises an extension spring connecting mechanism, a reversing spring, a torque compensation mechanism, a guide rail sliding block transmission mechanism and an electric control brake system; the extension spring connecting mechanism is combined with the reversing spring to achieve torque changes of the ankle joint during walking; and the electric control brake system, the torque compensation mechanism and the guide rail sliding block transmission mechanism achieve torque nolinear compensation, so that the torque of the ankle joint of a health person during walking is simulated. By means of the wearable quasi-passive ankle joint exoskeleton recovery device, on the premise that the safety of a patient is guaranteed, the patient suffering from low limb dysfunction such as strephenopodia and foot drop can conduct recovery walking with the wearable quasi-passive ankle joint exoskeleton recovery device.

The invention relates to assembly of an accessory and a shoe for providing support to a foot-drop affected foot relative to a lower leg belonging to the foot such that the loot is prevented from dropping downwards relative to the lower leg when the foot is raised by the lower from a supporting surface, the accessory being provided with a first attachment member for attachment of the accessory to the lower leg, a second attachment member for attachment of the accessory to an upper side of the shoe and a connecting body joining together the first attachment member and the second attachment member, wherein the second attachment member is provided with an attachment plate which, in use, is positioned under an upper part of the shoe. The invention also relates to the accessory of the assembly.

The invention relates to a gait detection device of a foot drop corrector. The device is provided with an insole and is characterized in that the insole is provided with a circuit module; the circuit module comprises a flexible circuit board and a circuit protection board; and sensors, a microprocessor, a wireless communication circuit and a battery are distributed and installed on the flexible circuit board. Compared with the prior art, the device has the following beneficial effects: the device has reasonable structure, realizes direct connection between the microprocessor and the wireless communication circuit as well as the sensors and overcomes the defect of generation of the signals and the contact fault of the treatment device; the integral structure brings convenience for the patients; and the defect that errors between the signals of the pressure sensors and the actual gait are generated because the sick foots always fall to the ground unstably when contacting the ground can be overcome by using the flexible steel board as the circuit protection board.

The invention discloses an exercise instrument for preventing deep venous thrombosis of lower limbs. The exercise instrument for preventing deep venous thrombosis of lower limbs comprises a casing, the upper end of the casing is provided with two sliding grooves with corresponding positions, a measuring side wall of the casing is respectively provided with a first device chamber and a sliding plugchamber, the side wall of the casing is fixedly connected to a driving motor, one end of an output shaft of the driving motor located in the first device chamber is fixedly connected to a first bevelgear, the inner wall of the first device chamber is rotatably connected to a driving wheel, the side wall of the driving wheel is coaxially fixedly connected to a second bevel gear meshed with the first bevel gear, the upper end of the casing is provided with a first groove communicated with the first device chamber, and the inner walls of the two sliding grooves are rotatably connected to parallelly-arranged first reciprocating lead screws. The exercise instrument for preventing deep venous thrombosis of lower limbs can massage the foot sole and instep to achieve a function of stimulating limb nerves, an ankle joint is protected from stiffness deformation, the foot drop is effectively prevented, and the rehabilitation of a patient is promoted.

The invention discloses a foot drop self-adaptive stimulator, which comprises a left and right stimulation electrode selection switch, a buzzer, a press key, an internal circuit and the like, wherein the internal circuit comprises a single chip, a variable voltage high-voltage generating circuit, a variable constant-current control circuit and a double-shaft angle sensor, the press key circuit can manually regulate the intensity of stimulation current and can also stop or restart the output, the variable voltage high-voltage generating circuit regulates the intensity of the output stimulationvoltage according to the concrete requirements of patients, and the constant-current control circuit can precisely generate the simulation current, the double-shaft angle sensor can precisely measurean included angle between the crus of the patients and the sagittal axis, and can transfer the value of the included angle to the single chip for carrying out processing and judgment to obtain the precise position and occasion to start the stimulation on the patients. The invention has the advantages of simple installation, convenient operation and adjustable stimulation intensity, is applicable to people with normal legs and feet and the patients with abnormal legs and feet, can automatically adapt to the walking rhythm of the patients, can select the left foot and the right foot, has the falling warning function and the like, and is suitable for various foot drop patients to use.

A foot support system includes a base to receive a sole of a foot, a cuff adapted to attach to a first portion of a leg near a knee of the leg, and a strap extending between the base and the cuff. The strap includes an elastic portion, a proximal segment attachable to the cuff, and a distal segment coupled to the base in proximity to a toe edge of the base. A strap holder may be included in certain embodiments of the invention to provide a relatively conforming fit to a wearer of the system, thereby allowing for a wider range of footwear options. An alternate embodiment of the invention may include a plurality of branches extending from the distal segment of the strap and adapted to fit between adjacent toes of a wearer in order to couple the strap to the base.

A heel supporting and protective boot for bed-ridden patients who may otherwise develop pressure sores on their heel. The body of the boot is comprised of a fiber and angled foam combination heretofore not used. The boot additionally has sewn tube holes on both sides allowing for use of medical tubing such as with a sequential compression pump. The inner portion material of the boot is a soft liner fabric which is antibacterial and absorbs moisture. The outer portion material of the boot is a fabric with fluid resistance. Further, the boot has a soft fiber-filled flap covering the shin portion of the leg to prevent pressure on the dorsal side of the lower leg. The boot additionally has a foot-position strap sewn and placed to the bottom of the boot running along both sides of the boot and attaching at the top of both sides of the upper boot to assist with the prevention of foot drop. Said invention further uses an opening at the heel which allows the heel to remain exposed to air as a result of proper elevation and cushioning created by the unique combination of fiber and angled foam in the body of said device. The elements incorporated address important factors in preventing or allowing healing of heel sores, or enhancing the curing of existing ulcers while minimizing chances of foot drop and minimizing chances of new pressure points. The fiber / foam combination, dual fabric content, shin flap, tubing holes, foot position strap and open heel design all work together to ensure proper healing and prevention of decubitis ulcers.

The invention discloses a detachable pressure sore prevention nursing mattress. The problems in the prior art that a mattress for preventing pressure sores is single in function and inconvenient to maintain and clean are solved. The detachable pressure sore prevention nursing mattress disclosed by the invention comprises a mattress body and a mattress cover, wherein inflatable bags in detachable connection with the surface of the mattress body are arranged on the mattress body; more than two inflatable bags are distributed in an array mode, and odd rows of the inflatable bags and even rows of the inflatable bags are arranged in a staggered manner; an inflation and deflation mechanism and a ventilation are arranged on the mattress body; the mattress cover mainly comprises sleeves; every two of the six sleeves are detachably connected with each other to encircle a regular hexagon hollow; more than two regular hexagon hollows form a hollow row; more than two hollow rows are arranged in parallel to form the mattress cover; and when the mattress cover covers the mattress body, each inflatable bag corresponds to one regular hexagon hollow and penetrates through the corresponding regular hexagon hollow. The detachable pressure sore prevention nursing mattress disclosed by the invention is simple in structure, capable of effectively preventing pressure sores and is convenient to clean and maintain and can effectively prevent foot drop caused by long-term bedridden.

The invention discloses a flexible ankle rehabilitation robot system. An execution module is connected with a foot module through a Bowden cable and a shank module, and a tension module for measuringtransmission force of the Bowden cable is arranged between the shank module and the foot module; a shank gyroscope is arranged on the shank module, a foot gyroscope and a pressure insole are arrangedon the foot module, a heel pressure sensor and a foot sole pressure sensor are arranged on the pressure insole, and the shank gyroscope and the foot gyroscope are arranged on the front face and the foot face of the shank of a user correspondingly; the pressure insole is located inside the foot module, sends a control instruction towards the execution module through an upper computer and receives sensing feedback information; the execution module transmits torque through the Bowden cable and the shank module to the foot module, so that ankle movement is assisted; and the shank gyroscope and thefoot gyroscope are mutually matched for detecting ankle motion information. The flexible ankle rehabilitation robot system is low in weight and achieves the gait training function for users with abnormal gaits of foot drop and strephenopodia.

The invention discloses a walking type under-actuated three-degree of freedom ankle joint movement recovery exoskeleton, comprising a driving mechanism, a shank fixing mechanism, a three-degree of freedom ankle joint and a thenar support. For patients with foot drop, the invention can utilize previously programmed walking program to serve as a tool for assisting walking and correcting gait. When people is in walking training, the human ankle can rotate in the axial plane according to an ankle angle curve input into the controller; the input standard ankle angle curve can adaptively adjust according to a man-machine interaction force; the exoskeleton provides a driving force for normal motion of the axial plane of the human ankle, synchronously satisfies the motion ranges of other two degree of freedom, prevents the damage to foot and interference to normal life due to towing and impacting caused by the foot drop, and improves the dorsiflexion ability of the patients with foot drop.

The invention discloses an intelligent adjustable foot-drop rehabilitation orthotic device which comprises a foot fixing component, a leg fixing component and a control unit. The control unit is used for controlling the foot fixing component to rotate relative to the leg fixing component through a pulling mechanism to make the foot fixing component in one of an initial state, a dorsiflexion state and a toe flexion state relative to the leg fixing component. The foot fixing component comprises a foot holder, the leg fixing component comprises a leg supporting rod, and the foot holder and the leg supporting rod are connected through an elastic part and capable of rotating in opposite directions under the action of the elastic part. The bottom of the foot fixing component is provided with a rope wheel corresponding to a forefoot position, a pulley is arranged at the rear end of the foot holder, and one end of a rope part is fixed to the leg fixing component while the other end of the rope part is connected with the rope wheel through the pulley. A power end of a driving motor is connected with the rope wheel, and the rope wheel is driven to rotate by the driving motor to adjust a relative position of the foot holder to the leg supporting rod. The intelligent adjustable foot-drop rehabilitation orthotic device has advantages that switching between dorsiflexion and toe flexion states of a foot can be automatically adjusted according to walking states of a user.

A foot drop support arrangement including a leg member and a strap having a first end supportable between the big toe and an adjacent end and a removable attachment mechanism for attaching the second end to the leg member whereby a user can support his or her toe end of the foot from a leg support without necessity for a shoe and with ease of installation for a foot drop patient upon getting up after sleeping.

The invention discloses a multifunctional anti-thrombus foot-drop exercise rehabilitation apparatus. The apparatus comprises a base plate, a fixing base, a motor, a first rotating shaft, a gear, a lifting plate, a gear rack, a counter, a timing alarm clock, a fixing shaft, a rotating plate, a slide rail, a back plate, a first electric push rod, a fixing cover, a stepping motor, a second rotating shaft, a cam, a limit block, a cushion, a bandage, a vibrator, a second electric push rod, a first switch, a second switch and a third switch. The multifunctional anti-thrombus foot-drop exercise rehabilitation apparatus is ingenious in structure and powerful in function, by the adoption of the multifunctional anti-thrombus foot-drop exercise rehabilitation apparatus, not only can effective massage be conducted on the lower limbs of a patient, and therefore the blood circulation is promoted, and the purpose of preventing thrombosis formation is achieved, but also dorsal flexure is conducted on the feet of the patient, and therefore the purpose of preventing and curing foot drop is effectively achieved. In addition, through simple operation, the lower limbs of the patient can move within a certain range, and therefore the apparatus can assist in exercise of the lower limbs of the patient, and finally the patient's rehabilitation effect is effectively improved.

The invention discloses an exerciser beneficial for ankle pump exercises of a patient with foot drop. The exerciser comprises a base which is horizontally arranged, wherein one end, in a length direction, of the base is provided with a supporting plate capable of rotating; a slide rail is arranged in a length direction of the supporting plate; a connecting plate is connected onto the slide rail in a sliding manner; an exercising frame is further arranged between the base and the supporting plate; one end, in a length direction, of the exercising frame is connected with the connecting plate; the other end of the exercising frame is rotatably connected with the base; one end, away from the base, of the supporting plate is provided with an operating rod used for the patient to operate; and a fixator for fixing feet of the patient is further arranged on the exercising frame. The exerciser can effectively prevent formation of thrombus, which causes embolisms of the heart, the brain and lungs, of lower extremity veins from forming, and is further beneficial for recovering limb functions of the lower limbs, so that the patient with foot drop can conveniently carry out rehabilitation training by himself or herself, and can actively participate in own limb rehabilitation of him or her, and therefore, the exerciser is high in comfort level, the cost is reduced, and the working efficiency is improved.