ВСТАВНОЙ УЗЕЛ СТОПЫ ПРОТЕЗА

Изобретение относится к медицинской технике. Вставной узел стопы протеза, включающий проксимальное крепежное устройство для фиксации вставного узла стопы протеза на проксимальном компоненте, расположенный дистально относительно крепежного устройства и соединенный с крепежным устройством держатель. Упругий элемент пятки расположен на держателе. Основная пружина проходит в область передней части стопы и соединена с держателем. Основная пружина установлена на упругом элементе пятки между проксимальным компонентом пятки и дистальным компонентом пятки. Упругий элемент пятки соединен по меньшей мере одним зажимным элементом с держателем, который удерживает элемент пятки в ненагруженном исходном положении в сжатом состоянии. Технический результат состоит в обеспечении оптимального использования материалов при простой конструкции и малом установочном пространстве. 24 з.п. ф-лы, 14 ил.

КИСТЕВОЙ ПРОТЕЗ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ УСИЛИЙ

... 1. Кистевой протез с основанием, на котором, по меньшей мере один пальцевый протез шарнирно установлен с возможностью движения вокруг, по меньшей мере, одной оси поворота посредством привода, соединенного с ним через устройство для передачи усилий, отличающийся тем, что устройство (10) для передачи усилий выполнено между приводом (6) и пальцевым протезом (3, 4, 5) жестким на растяжение и податливым при нажиме или изгибно-упругим. ! 2. Протез по п.1, отличающийся тем, что устройство (10) для передачи усилий содержит тросовый или волокнистый компонент (11) или прядь. ! 3. Протез по п.2, отличающийся тем, что тросовый или волокнистый компонент (11) или прядь выполнен в виде замкнутой, открытой или скрученной петли. ! 4. Протез по п.1, отличающийся тем, что устройство (10) для передачи усилий содержит эластомерный компонент (12). ! 5. Протез по п.4, отличающийся тем, что эластомерный компонент (12), по меньшей мере, частично охватывает тросовый или волокнистый компонент (11) или прядь. ! 6.

Искусственная стопа

AN ARTIFICIAL FOOT

An above-knee lower limb prosthesis and a shin component for the prosthesis

Prosthetic Limb Socket

A prosthetic limb socket (1) comprises a rigid support member (3) comprising a distal base portion (5) and a plurality of support portions (7, 9) extending proximally from the base portion (5), a plurality of adjustable panels (13A, 13P) disposed between the support portions (7, 9) of the support member (3) and cords (15D, 15P) for adjusting a radial position of the panels relative to the support portions. The cords (15D, 15P) may be manually tightened or tightened by means of motor. Sensors (21) are deployed to provide for automatic adjustment of the position of the panels (13A, 13P) relative to the support portions (7, 9).

FOOT PROSTHESIS WITH SPRINGY KNÖCHEL

VACCUM PUMP WITH REFLECTION LOSS AND CONTROLLED TURN FOR PROSTHESIS DEVICES

ROBOT HAND

LEG PROSTHESIS

SHOCK ABSORBER AND TORQUE LIMITER INTO BEINPROTHSE

FOOT PROSTHESIS

Vacuum pump with shock absorption and controlled rotation for prosthetic devices

A PROSTHESIS OR ORTHOSIS

A prosthesis or orthosis comprising a first body and a second body rotatable to one another, comprising a passive mechanical converting mechanism comprising a third body arranged movably with respect to the first body, an elastic element arranged between the third and the second body, the mechanical converting mechanism arranged for converting an angular change between the first body and the second body into a change of load on the elastic element, further comprising ratio adapting means interacting with the converting mechanism arranged for modifying the conversion ratio by which the change of load on the elastic element is performed.

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE

A prosthetic foot (124) incorporates a foot keel (165) and a calf shank (126) connected to the foot keel to form an ankle joint area of the prosthetic foot. A device (125) connected between the upper end of the calf shank and the lower portion of the prosthesis can be used to assist posterior movement of the upper end of a calf shank and control anterior movement of the upper end of the calf shank during use of the prosthesis. The device (125) has springs which store energy during force loading with anterior motion of the upper end of the calf shank in gait and which, during force unloading, return the stored energy as kinetic power for adding to the propulsive force on the user's body generated by the prosthesis in gait.

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE

A system for a lower extremity prosthesis comprising a foot, an ankle and a shank, has a posterior calf device (169) on the prosthesis to store energy during force loading of the prosthesis and return the stored energy during force unloading to increase the kinetic power generated for propulsive force by the prosthesis in gait. The device in several embodiments includes at least one elongated member (171) such as a flexible strap extending between an upper portion of the shank and a lower portion of the prosthesis, and at least one coiled spring (170) which has a free end connected to the elongated member. The coiled spring is expanded by the elongated member in response to anterior movement of the upper end of the shank for storing energy.

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE AND IMPROVED VERTICAL LOAD/SHOCK ABSORPTION

A prosthetic foot (1) incorporate a foot keel (2) and a calf shank (6) connected to the foot keel (2) to form an ankle joint area of the prosthetic foot (1). The foot keel (2) has forefoot (3) and hindfoot portions (4) and a relatively long midfoot portion (5) extending between and upwardly arched from the forefoot (3) and midfoot portions (5). The calf shank (6) includes a downward convexly curved lower end (7) which is attached at a portion thereof to the keel midfoot portion (5) by way of an adjustable fastener (8) arrangement. The adjustable fastener (8) arrangement permits adjustment of the alignment of the calf shank (6) and the foot keel (2) with respect to one another in the longitudinal direction of the foot keel (2) for tuning the performance of the prosthetic foot (1). The upwardly arched midportion of the foot keel (2), in addition to absorbing energy from vertical loading by expansion, can be formed with a spring which is compressed to absorb and expanded to return vertical ...

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE

A prosthetic foot (70) incorporates a foot keel (71) and a calf shank (72) connected to the foot keel to form an ankle joint area of the prosthetic foot. The foot keel has forefoot and hindfoot portions and an upwardly arched midfoot portion extending between the forefoot and midfoot portions. The calf shank includes a downward convexly curved lower end which is adjustably attached at a portion thereof to the foot keel by way of a releasable fastener arrangement which includes a coupling element (73) intermediate the calf shank and foot keel. The coupling element includes a resilient material forming a joint permitting subtalar joint-like motion of the prosthetic foot in gait.

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE AND IMPROVED VERTICAL LOAD/SHOCK ABSORPTION

A prosthetic foot (1) incorporate a foot keel (2) and a calf shank (6) connected to the foot keel (2) to form an ankle joint area of the prosthetic foot (1). The foot keel (2) has forefoot (3) and hindfoot portions (4) and a relatively long midfoot portion (5) extending between and upwardly arched from the forefoot (3) and midfoot portions (5). The calf shank (6) includes a downward convexly curved lower end (7) which is attached at a portion thereof to the keel midfoot portion (5) by way of an adjustable fastener (8) arrangement. The adjustable fastener (8) arrangement permits adjustment of the alignment of the calf shank (6) and the foot keel (2) with respect to one another in the longitudinal direction of the foot keel (2) for tuning the performance of the prosthetic foot (1). The upwardly arched midportion of the foot keel (2), in addition to absorbing energy from vertical loading by expansion, can be formed with a spring which is compressed to absorb and expanded to return vertical ...

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE

A prosthetic foot (70) incorporates a foot keel (77) and a calf shank (72) connected to the foot keel to form an ankle joint area of the prosthetic foot. The foot keel has forefoot and hindfoot portions and an upwardly arched midfoot portion extending between the forefoot and midfoot portions. The calf shank includes a downward convexly curved lower end which is adjustably attached at a portion thereof to the foot keel by way of a releasable fastener arrangement. The upper end of the calf shank is movable longitudinally of the foot keel in response to force loading and unloading the calf shank during use of the prosthetic foot. A device (71) connected between the ends of the calf shank limits the extent of the motion of the upper end of the calf shank relative to the lower end and foot keel. The upper end of the calf shank can include an alignment coupler device (92) thereon having adjustable slide mechanisms to adjust the media/lateral and anterior/posterior position of the calf shank ...

JOINT ACTUATION MECHANISM FOR A PROSTHETIC AND/OR ORTHOTIC DEVICE HAVING A COMPLIANT TRANSMISSION

Disclosed herein a prosthetic or orthotic device having a joint portion a nd a compliant transmission assembly in operational communication with the j oint portion. The device restores the normal capabilities and natural dynami cs of a healthy joint for common activities. The compliant transmission asse mbly includes a compliant element. The compliant transmission assembly absor bs energy when a torque is applied between a prosthetic or orthotic device p ortion and another adjacent device portion or the adjacent limb segment of t he user. The compliant element of the invention absorbs energy during flexio n of a joint for the dampening thereof and releases this energy during exten sion of the joint for assistance thereof. Also disclosed herein is an actuat or assembly, a torque sensor and an actuator locking device as well as a met hod for determining the torque of such prosthetic and orthotic devices. ...

HIGH DENSITY ACTUATOR WITH MINIMAL LATERAL TORSION

A high density actuator, comprising a housing assembly composed of a first housing element containing a motor stator and a second housing element containing a gear reduction mechanism, a rotational core positioned at the center of the housing assembly, the rotational core being composed of a motor rotor and a transmission input operatively connected to the motor rotor, a transmission output positioned between the transmission input and the housing assembly, the transmission output forming an actuator output, a torque transfer output operatively connected to the actuator output and a center shaft connected to the torque transfer output in its center and in rotational contact with the first housing element, the center shaft passing through the transmission output, rotational core and second housing element to ensure proper radial and axial alignment.

PROSTHETIC FOOT PROVIDING PLANTAR FLEXION AND CONTROLLED DORSIFLEXION

The present invention relates to a prosthetic foot including an integral spring portion providing motion in the foot, particularly a unitary foot structure providing a selectable degree of plantar flexion and a stiff structure for toe off. The present invention has found that an integrally formed c-shaped spring portion having an anterior gap, joining a connection platform and the heel and forefoot portions can provide a controlled range of natural mobility in a prosthetic foot as an economical design. The c-shaped spring can deflect, angling the connection platform rearwardly to a partially opened position against the bias of the spring, and angling the connection platform forwardly until the stop abuts the top surface of the forefoot in a closed position. The stop is positioned a selected distance above the top surface to obtain the desired angle of dorsiflexion. The plantar flexion against the bias of the spring is relatively stiff and provides a variable limit to the range of plantar ...

Prosthetic foot with tunable performance

STRUCTURE Of ARTICULATION PROSTHETIC OF KNEE

Rammer shock absorber recuperator for artificial legs, crutches and other orthopaedic appliances

PROSTHETIC ARTICULATION OF KNEE

하지 지지대 또는 보철 디바이스용 하중 지지 보조 장치

... 하지 지지대 또는 보철 디바이스로부터 지면으로 하중을 전달하기 위한 하중 지지 보조 장치. 하중지지 보조 장치는 외측 및 내측 스프링 장착 부재, 및 하중 지지 보조 장치를 하지 지지대 또는 보철 디바이스에 연결하기 위한 링크 기구를 포함한다. 링크 기구는 또한 하지 지지대 또는 보철 디바이스의 사용자의 발의 각각 외측 및 내측 부분에 인접하게 외측 및 내측 스프링 장착 부재를 위치시키도록, 그리고 외측 및 내측 스프링 장착 부재의 부분이 이동 중에 지면과 접촉 상태에 진입하도록, 하중 지지 보조 장치를 하지 지지대 또는 보철 디바이스에 연결하고, 외측 및 내측 스프링 장착 부재를 이격된 구성으로 연결한다.

PROSTHETIC FOOT WITH ENERGY TRANSFER

A prosthetic foot (1010, 1110, 1210) with variable stiffness response includes a variable energy transfer mechanism disposed between first and second foot members (1018, 1022, 1118, 1122, 1226, 1232) to transfer a variable amount of energy between the members during use. A chamber (1068) is associated with one of the first and second foot members, and a piston (1064) is associated with another of the first and second foot members and is movable in the chamber. At least one aperture (1074) is formed through the piston and in communication with the chamber. A variable viscosity fluid (1012) is disposed in the enclosure and displacable through the at least one aperture in the piston. The variable viscosity fluid has a viscosity that is variable to vary an ability of the variable viscosity fluid to flow through the at least one aperture. The foot device can also have a variable orifice.

TORQUE LIMITING CLUTCH FOR ORTHOTIC AND PROSTHETIC DEVICES

A torque limiting assembly for use with an actuator having a torque transfer output, the assembly comprising a brake pad, a band connected at a first extremity to a first extremity of the brake pad and a cam linking a second extremity of the band to a second extremity of the brake pad. The brake pad and the band are configured to wrap around the a torque transfer output and the positioning of the cam in a first position frictionally engages the brake pad and the band with the a torque transfer output while the positioning of the cam in a second position disengages the brake pad and the band with the a torque transfer output.

ADJUSTABLE PROSTHETIC INTERFACES AND RELATED SYSTEMS AND METHODS

Prosthesis devices can include sockets having adjustable features. In one example, a socket includes one or more panels that can move outwardly or inwardly relative to a receptacle portion of the socket. The panels can be moved by tightening a tensioning line.

HYBRID TERRAIN-ADAPTIVE LOWER-EXTREMITY SYSTEMS

Hybrid terrain-adaptive lower-extremity apparatus and methods that perform in a variety of different situations by detecting the terrain that is being traversed, and adapting to the detected terrain. In some embodiments, the ability to control the apparatus for each of these situations builds upon five basic capabilities: (1) determining the activity being performed; (2) dynamically controlling the characteristics of the apparatus based on the activity that is being performed; (3) dynamically driving the apparatus based on the activity that is being performed; (4) determining terrain texture irregularities (e.g., how sticky is the terrain, how slippery is the terrain, is the terrain coarse or smooth, does the terrain have any obstructions, such as rocks) and (5) a mechanical design of the apparatus that can respond to the dynamic control and dynamic drive.

PROSTHETIC FOOT WITH ENERGY TRANSFER MEDIUM INCLUDING VARIABLE VISCOSITY FLUID

A device prosthetic foot device (10, 110, 210, 410) and method with variable stiffness response includes a variable energy transfer medium (14, 114, 414) disposed between first and second foot members (18, 22, 118, 122, 218, 222, 322, 324, 418, 422) to transfer at least some energy from the second member to the first member during use. The energy transfer medium includes a variable viscosity fluid (50) such that the variable viscosity fluid, and thus the energy transfer medium, variably transfers energy between the first and second members to vary stiffness of the prosthetic foot device. The variable viscosity fluid can include a shear stiffening material (60) that increases in viscosity as a load or strain, or rate of loading or rate of strain, applied, or a magneto or electro rheologic fluid (90, 70) responsive to a magnetic or electric field. In addition, a socket device (510) to attach a prosthetic to a stump of an amputee can include an internal liner (558) with a variable viscosity ...

FOOT PROSTHESIS

The invention relates to a foot prosthesis having particularly good gait characteristics. To this end, the foot prosthesis is provided with a first spring element (1) that extends from the toe area to the lower leg area and a second spring element (2) that extends from the heel area to the lower leg area. The spring elements are designed in a leaf-shaped manner and are connected to each other with the first ends (4, 7) thereof that are situated on the side of the lower leg. A traction element (9) is provided which is connected to the first spring element with the one end thereof being situated in the forefoot area and to the second spring element in the heel area (6).

PROSTHETIC FOOT

A prosthetic foot (10) includes an energy storing, upper foot member (16) movably coupled to and spaced above an energy storing, lower foot member (14). An energy transfer medium (42) is disposed between and separates the upper and lower members. The energy transfer medium has opposite, upper and lower contact surfaces (46, 48) along which the respective upper and lower members track during flexion. The energy transfer medium had a greater flexibility than the upper and lower members to allow the upper and lower members to move with respect to one another and flex, and to provide a cushion to soften the feel of the foot while allowing the upper and lower members to be stiffer. An adjustable fastener (76, 78) may couple the energy transfer medium and upper and lower members together, to selectively tighten and loosen the upper and lower members to adjust stiffness of the foot. Separate forward and rearward energy transfer mediums (154, 158) may be movably and selectively located along a ...

Magnetorheological fluid compositions and prosthetic knees utilizing same

The present invention relates in one embodiment to magnetorheological fluids utilized in prosthetic joints in general and, in particular, to magnetorheological fluids utilized in controllable braking systems for prosthetic knee joints. Preferred magnetorheological fluids of the present invention comprises polarizable iron particles, a carrier fluid, and optionally an additive. Preferred additives include, but are not limited to functionalized carrier fluids as well as derivatized fluoropolymers. Preferred carrier fluids include, but are not limited, to perfluorinated polyethers.

Inflatable prosthetic breast assembly and associated method

An inflatable prosthetic breast assembly may include a pliant body. The assembly may also include a single and uniform outer layer that contiguously extends along an anterior face of the body as well as a rear wall removably attached to a posterior face of the body and a core permanently intercalated between the outer layer and the rear wall. The body may further include a mechanism for selectively modifying the shape of the body which may include a plurality of hollow pockets formed within the core and extending forwardly from the posterior face. A plurality of inflatable bladders may be removably seated within the pockets respectively. Each bladder preferably has an air-inlet orifice formed at a posterior side thereof. The body shape modifying mechanism may also include a hand-operable air pump to introduce volumes of air into the bladders respectively.

Foot prosthesis with resilient multi-axial ankle

The present foot prosthesis includes various structural features that provide the foot with advantageous rollover properties. In certain embodiments, the foot guides rollover toward the medial side. For example, an asymmetrical upper element and a correspondingly shaped resilient ankle member support more of the wearer's weight on the lateral side as the foot rolls over. In another embodiment, stiffeners added to the resilient ankle member increase the stiffness on the lateral side relative to the medial side. In certain other embodiments, the foot provides progressively increasing support from mid stance through toe off. For example, a gap between the resilient ankle member and the lower element closes during the later portion of the wearer's gait. The closing gap increases a contact area between the resilient ankle member and the lower element, providing progressively increasing support.

Energy returning prosthetic joint

An energy returning prosthetic joint arranged for use as a knee joint in prosthetic limbs includes a biasing or spring member connected to upper and lower attachment members. The spring member includes a composite material having an energy returning property. A cushion may be provided within the range of curvature of the spring member, or be connected to frame members in order to limit motion of the spring member.

Torque absorber with biofeedback

A two-element prosthesis is provided with a resilient connector that permits limited rotation of one element relative the other about the three axes of the two elements as defined by the junction of the two elements. The resilient connector further absorbs a limited amount of compressive shock transmitted from one element to the second element. The resilient member includes a sensing system that indicates a compressive force at the resilient member in excess of a predetermined amount.

Prosthetic apparatus with elastomeric shock absorber element

Prosthetic apparatus includes a pyramid adaptor and a pylon connected together by an outer sleeve, which may be an elastomeric element. The sleeve or element is clamped to both the pyramid adaptor and to the pylon to provide shock absorbing characteristics and to allow relative axial rotation between the pyramid adaptor and the pylon. Different configurations of sleeves are illustrated, and the use of a third clamp is also illustrated.

Foot prosthesis

There is provided a foot prosthesis having especially good gait characteristics. To that end, the prosthesis comprises a first spring element 1 extending from the toe region to the lower leg region and a second spring element 2 extending from the heel region to the lower leg region. The spring elements are formed as leaf-type elements and are connected to each other by their lower leg side first ends 4, 7 . There is provided a tension element 9 which is connected in the forward region of the foot with its one end and connected in the heel region 6 to the second spring element.

Biomimetic and variable stiffness ankle system and related methods

A cam system for an assistive device and related methods are disclosed. The cam system may comprise a cam profile and a cam follower. The cam profile has a curved outer edge comprising a concave portion. The cam follower is positioned within the concave portion when the assistive device is in an equilibrium position. The assistive device may further comprise a spring that deflects in response to a force applied by the cam system. The assistive device may have a sliding element to adjust the stiffness of the spring in deflection. The assistive device may take the form of a prosthesis or an orthosis.

Hybrid terrain-adaptive lower-extremity systems

Hybrid terrain-adaptive lower-extremity apparatus and methods that perform in a variety of different situations by detecting the terrain that is being traversed, and adapting to the detected terrain. In some embodiments, the ability to control the apparatus for each of these situations builds upon five basic capabilities: (1) determining the activity being performed; (2) dynamically controlling the characteristics of the apparatus based on the activity that is being performed; (3) dynamically driving the apparatus based on the activity that is being performed; (4) determining terrain texture irregularities (e.g., how sticky is the terrain, how slippery is the terrain, is the terrain coarse or smooth, does the terrain have any obstructions, such as rocks) and (5) a mechanical design of the apparatus that can respond to the dynamic control and dynamic drive.

Artificial foot and method for controlling the movement thereof

An artificial foot having a longitudinal axis extending from a heel area to a toe area, a length, a width and a height is provided. The artificial foot includes a connection to a lower leg part, an upper supporting structure in the direction of height, an elastic sole structure extending from the heel area to the toe area, an elastic connecting element arranged between the upper supporting structure and the sole structure, and a coupling system. The upper supporting structure is connected to the sole structure approximately in a middle of the foot with respect to its length by means of the coupling system. The coupling system allows a relative tilting motion between the upper supporting structure and the sole structure while keeping a distance between the upper supporting structure and the sole structure in a middle of the coupling system constant, at least while a patient places weight on it when standing.

PROSTHETIC SPORT FEET

Various features for improving the performance of prosthetic sport feet are provided. A fairing for a prosthetic sport foot can include foam components that are coupled to the foot and an elastane cover. The fairing is configured to alter the cross-sectional profile of the foot to produce a more aerodynamic shape. A prosthetic sport foot can include a hollow foot member that can be lighter weight and provide improved performance. A prosthetic sport foot can include an adjustable tension strap extending between and coupled to two portions of the foot member. A prosthetic sport foot, such as a prosthetic running foot or prosthetic cycling foot, can include an aerodynamic fairing and a cover. A prosthetic sport foot can have a varying-width profile such that a mid-section of the foot is narrower and a toe portion flares outward.

PROSTHETIC KNEE JOINT WITH ELECTRONICALLY-CONTROLLED TRANSMISSION

A knee prosthesis or orthosis includes at least one moveable joint and a torque modulating unit. The torque modulating unit is configured to impose a controllable torque on the at least one moveable joint. The torque modulating unit includes at least one of a motor or brake. The at least one of the motor or brake is coupled to the at least one moveable joint via an electronically-controlled transmission. The electronically-controlled transmission is a two-speed transmission.

ИСКУССТВЕННАЯ СТОПА И СПОСОБ УПРАВЛЕНИЯ ЕЕ ДВИЖЕНИЕМ

Изобретение относится к медицинской технике, а именно к протезам, в частности к искусственной стопе. Искусственная стопа с продолжающейся от участка пятки до участка пальцев стопы продольной осью, длиной, шириной и высотой, с соединением с элементом голени, верхней в направлении по высоте опорной структурой, продолжающейся от участка пятки до участка пальцев стопы эластичной структурой подошвы и расположенным между верхней опорной структурой и структурой подошвы эластичным соединительным элементом. Верхняя опорная структура в середине стопы по отношению к ее длине подвижно в нескольких осях соединена со структурой подошвы посредством соединительной компоновки, допускающей относительное качающееся движение между опорной структурой и структурой подошвы. Соединительная компоновка поддерживает постоянное расстояние между опорной структурой и структурой подошвы в середине соединительной компоновки, по меньшей мере, при весовой нагрузке стоящего пациента. Передача усилий элемента голени на структуру ...

ПРОТЕЗ СТОПЫ С НАСТРАИВАЕМЫМИ ХАРАКТЕРИСТИКАМИ

Группа изобретений предназначена для использования в протезах нижних конечностей и может быть использована в протезировании и протезостроении. Протез стопы имеет продольно проходящий киль стопы и упругую, монолитно выполненную стойку голени, проходящую вверх от киля стопы, для образования голеностопной области протеза стопы и нижней протезной части ноги над голеностопной областью для соединения с нижним окончанием протезной гильзы на культе ноги человека. Нижний участок стойки голени, проходящий вверх от киля стопы, имеет обращенную вперед выпукло-изогнутую форму. Стойка и участок киля стопы выполнены монолитно. В результате протез стопы обеспечивает симметричность походки за счет имитации процессов, происходящих в стопе при ходьбе человека. 3 н. и 13 з.п. ф-лы, 54 ил.

ПРОТЕЗ СТОПЫ С РЕГУЛИРУЕМОЙ ФУНКЦИЕЙ

Изобретение относится к области медицинской техники. Протез стопы содержит киль стопы и стержень голени, прикрепленный к килю стопы для образования области голеностопного сочленения протеза стопы. Киль стопы имеет передний отдел стопы и задний отдел стопы и относительно длинный средний отдел стопы, проходящий между передним отделом стопы и задним отделом стопы. Стержень голени содержит выпукло-изогнутый вниз нижний конец, который прикреплен в его части к среднему отделу стопы киля посредством регулируемого крепежного устройства. Стопа имеет возможность движения в двух плоскостях и в предпочтительном виде также имеет высокую и низкую динамическую характеристику. Регулируемое крепежное устройство обеспечивает возможность регулировки совмещения стержня голени и киля стопы относительно друг друга в продольном направлении киля стопы для регулировки функции протеза стопы. Изобретение позволяет улучшить функциональные характеристики протеза стопы. 8 н. и 69 з.п. ф-лы, 27 ил.

ПРОТЕЗ СТОПЫ С РЕГУЛИРУЕМОЙ ФУНКЦИЕЙ

... 1. Протез стопы, содержащий продольно проходящий киль стопы, стержень голени, прикрепленный к килю стопы на его нижнем конце, и проходящий вверх от киля стопы, в котором нижний конец стержня голени выпукло изогнут вниз и проходит вверх и первоначально вперед от него в обратно изогнутую часть стержня голени, ведущую к его вертикально стоящему верхнему концу. 2. Протез стопы по п.1, в котором нижний конец стержня голени в целом спрофилирован в форме параболы с наименьшим радиусом его кривизны, расположенным на нижнем конце. 3. Протез стопы по п.1, в котором стержень голени проходит вверх от киля стопы над задним отделом стопы и задней частью среднего отдела стопы киля стопы. 4. Протез стопы по п.1, дополнительно содержащий косметическое покрытие в форме стопы и нижней части нижней конечности человека, причем косметическое покрытие расположено над килем стопы и, по меньшей мере, над нижним концом стержня голени, причем стержень голени поднимается вверх от киля стопы внутри покрытия нижней ...

ПРОТЕЗ СТОПЫ С РЕГУЛИРУЕМОЙ ФУНКЦИЕЙ

... 1. Способ генерирования кинетической энергии для движущей силы в протезе нижней конечности, включающем в себя стопу, лодыжку и удлиненную прямостоящую голень над лодыжкой, заключающийся в том, что обеспечивают монолитно выполненный упругий элемент, который образует лодыжку и голень в протезе, причем этот упругий элемент, по меньшей мере, в области лодыжки является изогнутым выпуклостью вперед, и содействуют движению назад верхнего конца упругого элемента и управляют движением вперед верхнего конца упругого элемента во время использования протеза. 2. Способ по п.1, в котором упомянутое содействие движению назад включает в себя упругое отклонение верхнего конца упругого элемента для осуществления движения назад с помощью устройства, предусмотренного на протезе. 3. Способ по п.1, в котором упомянутое управление движением вперед ограничивает диапазон движения вперед верхнего конца упругого элемента с помощью устройства, предусмотренного на протезе. 4. Способ по п.1, в котором упомянутое управление ...

Fußprothese

Fußprothese (30) zur Versorgung von Beinamputierten, mit einer Kreuzgelenkeinrichtung (32), die einen Schaft (34) mit einem Auftrittkörper (40, 42) gelenkig koppelt, wobei die Kreuzgelenkeinrichtung (32) ein Gelenkelement (44) aufweist, das um eine erste Drehachse (C) und eine davon abweichende zweite Drehachse (D) drehbar gelagert ist, wobei die Kreuzgelenkeinrichtung (32) eine mit dem Schaft (34) koppelbare schaftseitige Gelenkgabel (36) aufweist und eine über das Gelenkelement (44) gelenkig mit der schaftseitigen Gelenkgabel (36) gekoppelte auftrittkörperseitige Gelenkgabel (38) aufweist, wobei die schaftseitige Gelenkgabel (36) um die erste Drehachse (C) und die auftrittkörperseitige Gelenkgabel (38) um die zweite Drehachse (D) relativ zu dem Gelenkelement (44) verschwenkbar sind und wobei die Schwenkbewegungen von schaftseitiger und auftrittkörperseitiger Gelenkgabel (36, 38) relativ zu dem Gelenkelement (44) gegen den Widerstand von wenigstens einem elastisch deformierbaren Dämpferelement ...

Implantat mit einem Hautdurchtrittsabschnitt

Ein Implantat mit einem Implantatkörper (1), der einen zum Verbleib im Körper vorgesehenen Implantatabschnitt (5), einen Hautdurchtrittsabschnitt (6) und einen extrakorporalen Anschlussabschnitt (7) aufweist, und mit einem den Hautdurchtrittsabschnitt (6) umgebenden flächigen Teil (8), das zum Verwachsen mit Hautgewebe vorgesehen ist und eine Oberfläche aufweist, die eine Auflage für eine den Hautdurchtrittsabschnitt (6) umgebende Hautschicht (4) bildet, erlaubt eine verbesserte Wundheilung und saubere Abdichtung der Hautdurchtrittsstelle des Implantats dadurch, dass das flächige Teil (8) sich keimdicht an den Hautdurchtrittsabschnitt (6) anschließt, als einheitliches Teil einen sich an den Hautdurchtrittsabschnitt (6) anschließenden Innenbereich (9) und einen Außenbereich (10) aufweist, wobei der Innenbereich (9) so steif ausgebildet ist, dass er eine in sich unbewegte Abstützfläche für eine den Hautdurchtrittsabschnitt (6) umgebende Hautschicht (4) bildet, und der Außenbereich (10) eine ...

PROTHETISCHER FUSS MIT EINSTELLBAREN BLASEN

Brems-Kniegelenk

Energy-storing artificial foot with adjustable resilience

An energy storing artificial foot (10) has a single-piece carbon fibre reinforced plastics keel (12) having a lower spring portion (128) connected at its posterior end as a cantilever to an upper load receiving portion (12). The resilience of the foot (10) is adjustable by means of a transversely extending support bar (28) which can be moved longitudinally by rotating an adjusting screw (30). The screw (30) passes through an aperture in the keel (12) and is accessible at the rear of the heel. ...

Artificial foot

THE EXISTENCE OR FUNCTION OF A MEMBER MEASURE REPLACING SUPPORT DEVICE

KNEE JOINT PROSTHESIS

FOOT PROSTHESIS WITH ADJUSTABLE ACHIEVEMENT

FOOT PROSTHESIS WITH ADJUSTABLE ACHIEVEMENT

FOOT PROSTHESIS WITH SPRINGY KNÖCHEL

FOOT PROSTHESIS

Vacuum pump with shock absorption and controlled rotation for prosthetic devices

Load bearing assistance apparatus for lower extremity orthotic or prosthetic devices

A load bearing assistance apparatus for transferring load from a lower extremity orthotic or prosthetic device to the ground. The load bearing assistance apparatus includes a lateral and a medial spring-loaded members and a linking mechanism for connecting the load bearing assistance apparatus to the lower extremity orthotic or prosthetic device. The linking mechanism also connects the lateral and medial spring-loaded members in a spaced apart configuration so as to position them adjacent the lateral and medial portions, respectively, of the foot of the user of the lower extremity orthotic or prosthetic device and such that a portion of the lateral and medial spring-loaded members enters in contact with the ground during locomotion.

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE

A prosthetic foot (100) incorporates a foot keel (101) and a resilient calf shank (105) with its lower end connected to the foot keel to form an ankle joint of the prosthetic foot. The foot keel has forefoot and hindfoot portions and a midfoot portion extending between the forefoot and hindfoot portions. The calf shank extends upward from the foot keel by way of an anterior facing convexly curved portion (106) of the shank, and is secured to the foot keel by way of a coupling element (107) which is monolithically formed with the forefoot portion of the foot. The lower end of the shank is reversely curved (110) and housed by a reversely curved portion (112) of the coupling element.

LOAD BEARING ASSISTANCE APPARATUS FOR LOWER EXTREMITY ORTHOTIC OR PROSTHETIC DEVICES

A load bearing assistance apparatus for transferring load from a lower extremity orthotic or prosthetic device to the ground. The load bearing assistance apparatus includes a lateral and a medial spring-loaded members and a linking mechanism for connecting the load bearing assistance apparatus to the lower extremity orthotic or prosthetic device. The linking mechanism also connects the lateral and medial spring-loaded members in a spaced apart configuration so as to position them adjacent the lateral and medial portions, respectively, of the foot of the user of the lower extremity orthotic or prosthetic device and such that a portion of the lateral and medial spring-loaded members enters in contact with the ground during locomotion.

A PROSTHESIS OR ORTHOSIS

A prosthesis or orthosis comprising a first body and a second body rotatable to one another, comprising a passive mechanical converting mechanism comprising a third body arranged movably with respect to the first body, an elastic element arranged between the third and the second body, the mechanical converting mechanism arranged for converting an angular change between the first body and the second body into a change of load on the elastic element, further comprising ratio adapting means interacting with the converting mechanism arranged for modifying the conversion ratio by which the change of load on the elastic element is performed.

METHOD FOR CONTROLLING AN ARTIFICIAL ORTHOTIC OR PROSTHETIC KNEE JOINT

The invention relates to a method for controlling an artificial orthotic or prosthetic knee joint (2), on which a lower-leg component (3) is arranged and with which a resistance device (5) is associated, the bending resistance (R) of which resistance device is changed in dependence on sensor data that are determined by means of at least one sensor (11, 12, 31) during the use of the orthotic or prosthetic knee joint, wherein a linear acceleration (a F) of the lower-leg component (3) is determined, the determined linear acceleration (a F) is compared with at least one threshold value, and, if a threshold value of the linear acceleration (a F) of the lower-leg component (3) is reached, the bending resistance (R) is changed.

MODULAR PROSTHETIC SOCKETS AND METHODS FOR MAKING SAME

The invention relates to a prosthetic socket for a residual limb of the lower extremity or upper extremity of an individual person. The residual limb has particular dimensions and anatomical contours; the prosthetic socket has dimensions and contours that fit the dimensions and contours of the residual limb. The prosthetic socket may also fit in a manner that is biomechanically particularly appropriate for the individual. The prosthetic socket is an assembly of components from groups of components that include (a) struts arranged longitudinally with respect to the residual limb, (b) proximal brim members arranged proximally to the struts and connected thereto; and (c) distal socket members disposed at the distal base of the prosthetic socket. The socket components within these groups may be modular in that they can vary with respect to dimensions and/or contours, and yet have common connecting features that permit assembly of the components together to form the prosthetic socket.

Prosthetic Device Incorporating Low Ankle Design

Prosthetic foot with enhanced stability and elastic energy return

Prosthesis of foot including/understanding an adjustable bladder and bladder usable in such a prosthesis

L'invention concerne une prothèse de pied et une vessie utilisable dans une telle prothèse. Cette prothèse de pied est caractérisée en ce qu'elle comprend, en combinaison, des moyens de fixation (26,28) pour faciliter le contact opérationnel de la prothèse de pied avec un moignon d'un porteur, une pluralité d'organes structuraux courbes (20,22,24), stockant de l'énergie, attachés opérationnellement aux moyens de fixation (26,28) et/ou les uns aux autres, et des moyens à vessie (14) adjacents aux organes structuraux (20,22,24), ces moyens à vessie (14) coopérant avec les organes structuraux (20,22,24) pour la détermination de la caractéristique de stockage d'énergie de la prothèse de pied.

Prosthesis Prosthesis cover, in particular for an artificial leg

CONTROLLING TORQUE IN A PROSTHESIS OR ORTHOSIS

TORSION DEVICE OF EXPROSTHESIS

PURPOSE: Provided is a torsion device of an exoprosthesis which has a proximal part and can rotate in positive and negative directions of rotation in relation to a distal part, by the action of a spring resilient torsion element. CONSTITUTION: The torsion device includes a proximal part(1) and can rotate in positive and negative directions of rotation in relation to a distal part(2), by the action of a resilient torsion element. The torsion element has two separate torsion spring elements. The separate torsion springs have different spring characteristics and are each fitted, with pre-stressing, between their associated abutments in such a way that in each case only one of the two torsion spring elements is active in one of the two directions of rotation, namely only in the positive direction of rotation or only in the negative direction of rotation. © KIPO 2003 ...

PROSTHETIC FOOT

Prosthetic foot, of the type with energy recovery, comprising at least one spring blade (2) made of composite material fixed integrally to the ankle or tibia, or to a support (1) fixed to the ankle or tibia, and designed to permit dynamic set-down on the ground (S). It further comprises a rigid arm (3) connected to the blade (2) via a first connecting means (22), which permits a pivoting articulation of the arm (3) on the blade (2) on an axis transverse to the latter; and in that the rigid arm (3) has a part (31) designed to permit a substantially vertical set-down on the ground, preferably to the rear of the ankle or tibia; and in that, moreover, the rigid arm (3) and the blade (2) are connected via a second connecting means (32) arranged in an area distant from the first connecting means (22).

PROSTHETIC, ORTHOTIC OR EXOSKELETON DEVICE

A time-dependent decay behavior is incorporated into one or more joint actuator control parameters during operation of a lower-extremity, prosthetic, orthotic or exoskeleton device. These parameters may include joint equilibrium, joint impedance (e.g., stiffness, damping) and/or joint torque components (e.g., gain, exponent). The decay behavior may be exponential, linear, piecewise, or may conform to any other suitable function. Embodiments presented herein are used in a control system that emulates biological muscle-tendon reflex response providing for a natural walking experience. Further, joint impedance may depend on an angular rate of the joint. Such a relationship between angular rate and joint impedance may assist a wearer in carrying out certain activities, such as standing up and ascending a ladder.

KNEE JOINT PROSTHESIS

Disclosed is a knee joint for a leg prosthesis, comprising an upper joint part (2) and a lower joint part (3) which can be rotated about a joint axis (5) relative to the upper part of the joint (2), and a brake device (14, 15, 20, 21). The brake device comprises a first force transmission element (14), upon which the force triggering the braking effect acts, and which transfers the force at a given transmission ratio to a second force transmission element (15) which, in relation to the joint axis (20,21), transfers the displaced force in a substantially parallel direction towards a brake disk (20,21).

Knee prosthesis

A knee prosthesis has two pivotally interconnected members (10,11) carrying a locking device (17) and a first end a second axle (20,21). The first axle (20) forms a bearing axle for the locking device and the second axle (21) cooperates with the locking device for activation thereof. The second axle (21) is located at a distance behind the first axle (20) and is arranged to act upon the locking device in such a way that when the line of action (26) from a load on the knee prosthesis passes through the second axle (21) or between the first (20) and the second axle, said second axle will act upon the locking device to activate it, while when said line of action (26) passes through the first axle or in front of it the second axle (21) will be unloaded and the locking device (17) inactivated.

Foot prosthesis having curved forefoot

A foot prosthesis is provided for attaching to a pylon or other intermediate supporting member fitted to the stump of an amputee. The foot prosthesis includes a forefoot portion constructed of a resilient polymer-encapsulated fiber laminate and having an upper attachment section, a curved intermediate section and a lower forward extending section. The shape of the forefoot is generally parabolic or J-shaped so as to provide smooth resilient support to the amputee during normal walking and running activities without producing undue stress concentration in the prosthetic foot, which could otherwise degrade the integrity of the foot. An arcuate toe section provides smooth rolling contact of the foot prosthesis with a ground surface during toe-off, simulating the stride and feel of a natural human foot. A heel portion, also formed of a resilient polymer encapsulated laminate material, attaches under the forefoot in order to provide enhanced comfort and energy absorption during heel-strike.

Hybrid terrain-adaptive lower-extremity systems

Hybrid terrain-adaptive lower-extremity apparatus and methods that perform in a variety of different situations by detecting the terrain that is being traversed, and adapting to the detected terrain. In some embodiments, the ability to control the apparatus for each of these situations builds upon five basic capabilities: (1) determining the activity being performed; (2) dynamically controlling the characteristics of the apparatus based on the activity that is being performed; (3) dynamically driving the apparatus based on the activity that is being performed; (4) determining terrain texture irregularities (e.g., how sticky is the terrain, how slippery is the terrain, is the terrain coarse or smooth, does the terrain have any obstructions, such as rocks) and (5) a mechanical design of the apparatus that can respond to the dynamic control and dynamic drive.

PROSTHETIC FOOT WITH ENERGY TRANSFER MEDIUM INCLUDING VARIABLE VISCOSITY FLUID

A device prosthetic foot device (10, 110, 210, 410) and method with variable stiffness response includes a variable energy transfer medium (14, 114, 414) disposed between first and second foot members (18, 22, 118, 122, 218, 222, 322, 324, 418, 422) to transfer at least some energy from the second member to the first member during use. The energy transfer medium includes a variable viscosity fluid (50) such that the variable viscosity fluid, and thus the energy transfer medium, variably transfers energy between the first and second members to vary stiffness of the prosthetic foot device. The variable viscosity fluid can include a shear stiffening material (60) that increases in viscosity as a load or strain, or rate of loading or rate of strain, applied, or a magneto or electro rheologic fluid (90, 70) responsive to a magnetic or electric field. In addition, a socket device (510) to attach a prosthetic to a stump of an amputee can include an internal liner (558) with a variable viscosity ...

SUPPORT DEVICE REPLACING THE EXISTENCE OR FUNCTION OF A LIMB

Foot prothesis having cushioned ankle

A simple, inexpensive prosthetic foot (10) is provided incorporating a cushioned ankle including an ankle block (16) formed of a bladder (19) having desired compliance and energy return characteristics. The bladder (19) is sandwiched between a foot plate element (12) and an ankle plate element (14). One or more optional spring elements (18) may be embedded inside the bladder (19) to increase the rigidity of the prosthetic foot (10) and to improve the degree of energy storage and return. The shape of the spring inserts (18) is preferably one that supports compression during relative angular rotation of the ankle plate element (14) and foot plate element (12), such as during toe and heel roll, and also vertical compression, such as in response to vertical shock loads.

ТОРСИОННОЕ УСТРОЙСТВО ЭКЗОПРОТЕЗА

Изобретение относится к области медицинской техники, а именно к протезам ног. Торсионное устройство экзопротеза содержит проксимальную часть, установленную с возможностью вращения против действия пружинисто-упругого торсионного элемента относительно дистальной части в положительном и отрицательном направлениях вращения. Причем торсионный элемент в положительном направлении вращения имеет торсионную характеристику, отличающуюся от торсионной характеристики в отрицательном направлении вращения. При этом торсионный элемент включает в себя два отдельных торсионных пружинящих элемента, имеющих разную характеристику пружины и помещенных с предварительным натягом между расположенными между ними опорами так, что только соответственно один из обоих торсионных пружинящих элементов действует в одном из обоих направлений вращения. Изобретение позволяет повысить функциональность использования протеза. 21 з.п. ф-лы, 2 ил.

ИСКУССТВЕННАЯ СТОПА И СПОСОБ УПРАВЛЕНИЯ ЕЕ ДВИЖЕНИЕМ

... 1. Искусственная стопа с продолжающейся от участка пятки до участка пальцев стопы продольной осью, длиной, шириной и высотой, с соединением с элементом (14) голени, верхней в направлении по высоте опорной структурой (3), продолжающейся от участка пятки до участка пальцев стопы эластичной структурой (2) подошвы и расположенным между верхней опорной структурой (3) и структурой (2) подошвы эластичным соединительным элементом (10), отличающаяся тем, что верхняя опорная структура (3) примерно в середине стопы по отношению к ее длине соединена со структурой (2) подошвы посредством соединительной компоновки (4), допускающей относительное качающееся движение между опорной структурой (3) и поддерживающей при этом постоянное расстояние между опорной структурой (3) и структурой (2) подошвы в середине соединительной компоновки (4), по меньшей мере, при весовой нагрузке стоящего пациента. ! 2. Искусственная стопа по п.1, отличающаяся тем, что соединительная компоновка (4) образована деталью (5) из материала ...

Uniaxial brake knee joint for above-knee prosthesis for above-knee amputee, has joint middle part for receiving vertically slidable guide rod with lower end, and joint lower part including through hole for releasing swing phase control

The knee joint has a joint middle part (7) for receiving a vertically slidable guide rod (1) with a lower end (1a) that downwardly protrudes from the part. The end initiates mechanical or pneumatic swing phase control. Fixed points for the control are formed by lower ends of the part and the guide rod. A joint lower part (12) has a vertical through hole (24) for releasing the control. A control shaft (10) is rotatably supported in the middle part at a accurately defined vertical distance below a brake axis (11).

FUSSPROTHESE MIT GEFEDERTEM KNÖCHEL

Greiferhaken

Above-knee lower limb prosthesis

A single-piece fibre-reinforced plastics shin component for a lower limb prosthesis for a above-knee amputee has a energy storing blade (12) and, integrally formed therewith, a shin cradle in the form of a channel section (11) which has a pair of pivot supports formed as flanges (11L, 11M; 32) extending away from one of the major surfaces (12A) of the blade (12). Each flange has a pair of holes defining transverse pivot axes, one of which is a knee axis and the other of which is a pivot axis for mounting the distal end of a knee movement control unit (14). These holes together define a longitudinal axis which is generally parallel to and to the anterior of the blade (12). The blade merges smoothly into the channel section and, over a distal end portion, is straight and of constant cross-section to allow the blade to be cut to length to suit the amputee.

Prosthetic device

MEHRACHSIGES ARTIFICIAL KNEE JOINT

PROSTHESIS

WITH LOW ONE FUSSKNÖCHELGELENKENTWURF PROVIDED PROTHETI DEVICE

KNEE JOINT PROSTHESIS

PROSTHESIS JOINT

Coil spring prosthetic foot

PROSTHETIC FOOT WITH TUNABLE PERFORMANCE AND IMPROVED VERTICAL LOAD/SHOCK ABSORPTION

Functional foot cover

A cover for a foot prosthesis comprises an opening at a top end of the cover, which extends into a cavity formed within the cover, wherein the cavity is configured to receive a prosthesis therein. A wall surrounds the cavity and has the shape of a natural human foot. The wall has an inner surface and an outer surface. The wall also has a top section, a bottom section and a rear section. The bottom section defines a sole area having a toe section, a heel section, and a metatarsal region, wherein the sole area is provided with varying levels of stiffness configured to induce a desired rollover from heel-to-toe in a lateral-to-medial direction.

Dynamically Activated Variable Response Socket with Hydraulic Pump

An articulating prosthetic foot is used for a prosthetic or orthotic artificial limb for amputees having a residual limb. The artificial limb has a pylon and a socket for receiving the residual limb and a vacuum pump connected to the socket. The articulating foot articulates on the pylon and has a hydraulic pump. The hydraulic pump is driven by the articulating motion of the foot and drives the vacuum pump.

Method and device for controlling an artificial orthotic or prosthetic joint

The invention relates to a method and device for controlling an artificial orthotic or prosthetic joint of a lower extremity having a resistance device to which at least one actuator is associated, via which the bending and/or stretching resistance is changed depending on sensor data. During the use of the joint, status information is provided via sensors. During use of the joint, status information is provided via sensors, wherein a cyclic movement different from walking is determined and the resistance is reduced for the duration of the cyclic movement.

System and method for determining terrain transitions

A prosthetic or orthotic system including a sensor module and a processing module usable to determine a terrain variable, such as a terrain transition. In certain examples, the system is capable of anticipating a terrain transition prior to the user experiencing the terrain transition, which may include, for instance, a transition from level ground walking to walking on stairs or may include a change in a slope of the ground surface. In certain embodiments, the system advantageously monitors a posture and/or movement of the patient to anticipate the terrain transition. Furthermore, the system may control an actuator to appropriately adjust the prosthetic or orthotic device to encounter the anticipated terrain transition.

Further improvements to ankle-foot prosthesis and orthosis capable of automatic adaptation to sloped walking surfaces and methods of use

The present invention relates to an improved system for use in rehabilitation and/or physical therapy for the treatment of injury or disease to the lower limbs or extremities. The system can enable an amputee to proceed over any inclined or declined surface without overbalancing. The system is mechanically passive in that it does not utilize motors, force generating devices, batteries, or powered sources that may add undesirable weight or mass and that may require recharging. In particular the system is self-adapting to adjust the torque moment depending upon the motion, the extent of inclination, and the surface topography. An additional advantage of the improvement is that the system can be light and may also be simple to manufacture.

Prosthetic hydraulic joint with accumulator and methods for controlling joint

A prosthetic foot assembly is disclosed. The assembly includes a pivoting ankle joint with a hydraulic system, a prosthetic foot connected to the distal side of the ankle joint, and, at the proximal side, the ankle joint includes a transducer with pyramid adaptor for attaching to a pylon. The ankle joint sensor provides data collection during the stance and optionally, the swing, phases of walking using, for example, strain gages and accelerometers. Also disclosed are methods for real-time feature extraction. Key parameters are captured to which are applied linear, fuzzy logic, neural net, or generic algorithms to determine current state (walking flat, uphill, downhill etc.) in real time and execute changes to the angle between the ankle and foot almost instantaneously based on those parameters.

Adjustment-free cushioning air cylinder

An adjustment-free cushioning air cylinder includes an air cylinder body, a piston, a first check valve, an upper air way, a second check valve and a lower air way. An air chamber is formed inside the air cylinder body. The piston slides in the air chamber. One end of the piston extends to the external of the air cylinder body. The piston does a reciprocating movement in the air chamber and divides the air chamber into an upper air chamber and a lower air chamber. The first check valve is disposed in the piston, one end of the first check valve is connected to the upper air chamber, and the other end is connected to the lower air chamber. The upper air way connects the upper air chamber with the outside. The adjustment-free cushioning air cylinder of the invention does not need to adjust the entering flow rate of the air, but the entering flow rate can be automatically adjusted to produce cushioning resistance as the user is walking according to the walking speed. The present invention has a simple structure, high cushioning performance, lower cost, and is not easy to damage, thus can greatly improve the product competitiveness.

Prosthetic foot with hybrid layup

A prosthetic foot has a plate-like foot member with a core section substantially defined by one or more layers comprising a first material fiber, an upper section disposed above the core section, the upper section substantially defined by one or more layers comprising a second material fiber, and a lower section disposed below the core section, the lower section substantially defined by one or more layers comprising a third material fiber, where the upper, lower and core sections together define a total thickness of the plate-like elongate foot member. An idealized ratio of the cross sectional area of each section can be determined such that under an applied load provided to the hybrid layup, the ratio of maximum stress of a given section over the flexural strength of that given section is approximately equal for all sections of the hybrid layup. The hybrid layup arrangement can be configured to have a greater strength, but generally the same stiffness, as a similar foot member made of carbon fiber.

Systems and methods for autoconfiguration of pattern-recognition controlled myoelectric prostheses

Embodiments of the invention provide for a prosthesis guided training system that includes a plurality of sensors for detecting electromyographic activity. A computing device, which can include a processor and memory, can extract data from the electromyographic activity. A real-time pattern recognition control algorithm and an autoconfiguring pattern recognition training algorithm can be stored in the memory. The computing device can determine movement of a prosthesis based on the execution of the real-time pattern recognition control algorithm. The computing device can also alter operational parameters of the real-time pattern recognition control algorithm based on execution of the autoconfiguring pattern recognition training algorithm.

Prosthetic ankle module

A prosthetic ankle module allows for translational and/or rotational movement of a prosthetic foot relative to an adapter. The ankle module can include a four-bar linkage assembly. Links of the linkage assembly can be arranged in various configurations, e.g., parallel or non-parallel and having equal or non-equal lengths, to provide different functions and benefits, e.g., dorsiflexion, plantar flexion, vertical shock absorption, inversion, eversion, and/or rotation about the sagittal axis. Other types of linkage assemblies are also possible. A prosthetic foot can further include a support spring to limit the range of motion of the adapter in use.

Variable-mechanical-impedance artificial legs

In one aspect, the invention provides methods and apparatus facilitating an adjustable-stiffness prosthesis or orthosis (including approximations to arbitrarily definable non-linear spring functions). Spring rates may be varied under no-load conditions during a walking gate cycle to minimize power consumption. In another aspect, the invention provides methods and apparatus for outputting positive power from a prosthesis or orthosis, facilitating high-performance artificial limbs. In one embodiment of the invention, the positive power is transferred from a functioning muscle to the prosthesis or orthosis, which mimics or assists a non-functioning or impaired muscle. In another embodiment of the invention, the positive power comes from an on-board power source in the prosthesis or orthosis.

Powered Ankle-Foot Prosthesis

A powered ankle-foot prosthesis, capable of providing human-like power at terminal stance that increase amputees metabolic walking economy compared to a conventional passive-elastic prosthesis. The powered prosthesis comprises a unidirectional spring, configured in parallel with a force-controllable actuator with series elasticity. The prosthesis is controlled to deliver the high mechanical power and net positive work observed in normal human walking.

PROSTHETIC FOOT WITH HYBRID LAYUP

A prosthetic foot has a plate-like foot member with a core section substantially defined by one or more layers comprising a first material fiber, an upper section disposed above the core section, the upper section substantially defined by one or more layers comprising a second material fiber, and a lower section disposed below the core section, the lower section substantially defined by one or more layers comprising a third material fiber, where the upper, lower and core sections together define a total thickness of the plate-like elongate foot member. An idealized ratio of the cross sectional area of each section can be determined such that under an applied load provided to the hybrid layup, the ratio of maximum stress of a given section over the flexural strength of that given section is approximately equal for all sections of the hybrid layup. The hybrid layup arrangement can be configured to have a greater strength, but generally the same stiffness, as a similar foot member made of carbon fiber. 133-. (canceled)34. A method of making a prosthetic foot comprising a hybrid layup having at least a first section and a second section provided on top of one another , wherein the first section comprises a plurality of first layers comprising a first fiber material and the second section comprises a plurality of second layers comprising a second fiber material that is different from the first fiber material , the method comprising: 'a first ratio, defined as a first maximum stress of the first section over a first flexural strength of the first section, is equal to a second ratio, defined as a second maximum stress of the second section over a second flexural strength of the second section, wherein the maximum stress of a given section is the maximum stress experienced by that section under the applied load;', 'determining desired thicknesses of the first section and the second section to provide for simultaneous breakage of the first and second sections in the hybrid ...

SHOCK AND TORSION ABSORBER FOR ELEVATED VACUUM SUSPENSION

The present invention teaches a shock and torsion absorber that includes a base member having an accommodation space and an exhaust opening, a cushion member joined to a bottom end of the base member, a limit member including a positioning element and a seal element, and a joint member having an intake element, a trough, and a axial channel. A piston is housed in the joint member. The axial channel allows a shaft to thread through via the positioning element and to join with the shaft limit element. A bottom end of the positioning element is connected to the cushion member. The piston is connected to a top end of the positioning element. An upper vacuum chamber is formed above the seal element in the joint member. A lower vacuum chamber is formed beneath the piston and the seal element. 1. A shock and torsion absorber , comprising:a base member having an accommodation space and an exhaust opening;a cushion member joined to a bottom end of the base member comprising a casing, a shaft limit element, an elastic element, and an adjustment element, where the shaft limit element and the elastic element are sequentially received in the casing, and a bottom end of the casing is sealed by the adjustment element;a limit member comprising a tubular positioning element and a seal element, where a bottom end of the positioning element is threaded through the base member and coupled to the cushion member, and the seal element is joined to a top end of the positioning element;a joint member comprising an intake element, a trough, and an axial channel, where the intake element is joined to an outer circumference of the joint member to draw air inside the joint member, the trough is around an inner circumference of the joint member, a piston is tightly housed in the joint member through the trough, a shaft runs through the axial channel and the positioning element, and joins to the shaft limit element for buffering pressure exerted on the joint memberwherein an upper vacuum chamber ...

Attachment Plate for a Prosthetic Socket

The attachment plate for a prosthetic socket is fabricated into the distal end of a prosthetic socket. The attachment plate comprises a body with a peripheral seal, a valve, an air tunnel, and an exhaust port. When fastened in the distal end of a prosthetic socket, the peripheral seal creates a secure seal to the inner wall of the prosthetic socket and the exhaust port remains exposed to atmosphere. The valve is open to the cavity of the prosthetic socket for air to be removed to secure a prosthetic via vacuum or suction. Air from the cavity moves through the valve, through an air tunnel machined into the cylindrical body, and is expelled out of the exhaust port. 1. A attachment plate to be fabricated into a prosthetic socket , the attachment plate comprising:a cylindrical body, having a side, a top, and a bottom;a peripheral seal affixed to the side of the body;a valve affixed to the cylindrical body in fluid communication with a cavity of the prosthetic socket; andan exhaust port in fluid communication with the valve, the exhaust port configured to expel air external to a cavity of the prosthetic socket.2. The attachment plate of claim 1 , further comprising an air tunnel through the body from the valve to the exhaust port.3. The attachment plate of claim 1 , further comprising:a distal end pad, the distal end pad on the top of the body; anda channel in the distal end pad fluidly connecting the cavity of the prosthetic socket to the valve.4. The attachment plate of claim 3 , wherein the distal end pad has a flat bottom and a concave top.5. The attachment plate of claim 1 , wherein the prosthetic socket is fabricated around the cylindrical body.6. The attachment plate of claim 1 , wherein the cylindrical body in the distal end of the prosthetic socket and the peripheral seal secured against an inner surface of the prosthetic socket.7. The attachment plate of claim 1 , further comprising a mounting element located on the bottom of the cylindrical body.8. An ...

VARIABLE STIFFNESS PROSTHETIC FOOT

Prosthetic feet that provide for variable and adjustable stiffness are provided. A foot element can include a tongue portion defined or formed by a slot in the foot element that at least partially separates the tongue portion from a remainder of the foot element. The tongue portion can be operably connected to the remainder of the foot member to increase the stiffness of the foot member or operably disconnected from the remainder of the foot member to increase the flexibility of the foot member. The prosthetic foot further includes a mechanism for adjusting whether the tongue portion is operably connected or disconnected from the remainder of the foot member. The mechanism can be selectively actuated to adjust the stiffness of the foot element in dorsiflexion and/or plantarflexion and/or to adjust the degree to which the tongue portion is allowed to flex relative to the remainder of the foot member. 113.-. (canceled)14. A prosthetic foot comprising:an elongate foot element extending from a proximal end to a distal end, the foot element comprising a tongue portion defined by a slot in the foot element that at least partially separates the tongue portion from a remainder of the elongate foot element, the distal end defining a toe end of the prosthetic foot; anda mechanism comprising at least one tab engagement member, wherein the tongue portion is operatively connected to the remainder of the elongate foot element when the tab engagement member is positioned in a first orientation and the tongue portion is operatively disconnected from the remainder of the elongate foot element when the tab engagement member is positioned in a second orientation,wherein, when the tongue portion is operatively connected to the remainder of the elongate foot element, the elongate foot element exhibits relatively greater stiffness, and when the tongue portion is operatively disconnected from the remainder of the elongate foot element, the elongate foot element exhibits relatively lower ...

Adjustable prosthetic interfaces and related systems and methods

Prosthesis devices can include sockets having adjustable features. In one example, a socket includes one or more panels that can move outwardly or inwardly relative to a receptacle portion of the socket. The panels can be moved by tightening a tensioning line.

PROSTHETIC FOOT WITH REMOVABLE FLEXIBLE MEMBERS

A prosthetic foot can include an attachment member, at least one first brace, at least one first flexible member, an unpowered actuator, at least one second brace, and at least one second flexible member. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The at least one first brace can mount to the attachment member and the at least one first flexible member can connect to the attachment member by the at least one first brace such that a force between the ground and the attachment member can be supported by the at least one first flexible member. The unpowered actuator can mount to the attachment member and the at least one second brace can mounted to the actuator. The at least one second flexible member can connect to the attachment member by the at least one second brace such that a force between the ground and the attachment member can be supported by the at least one second flexible member. 1. (canceled)2. A prosthetic foot comprising:an adapter member comprising a connector configured to connect the adapter member to a user or another prosthetic device;a lower plate extending between a proximal end and a distal end;a support member extending between and interconnecting the proximal end of the lower plate and a proximal portion of the adapter member, the support member pivotally coupled to the proximal end of the lower plate; anda top plate assembly extending between a proximal end and a distal end, the top plate assembly including a split that extends from the proximal end to the distal end to divide the top plate assembly into at least a medial blade and a lateral blade, a distal portion of the adapter member disposed between and pivotally coupled to the medial and lateral blades at the proximal end of the top plate assembly to thereby facilitate a medial-lateral and/or a twist movement of the prosthetic foot during stance when the prosthetic foot is in contact with a support ...

ADJUSTABLE PROSTHESIS LEG

A prosthetic system includes a prosthetic knee having a controller and a hydraulic unit pivotally connected to the controller. The hydraulic includes a reserve hydraulic cylinder, a brake hydraulic cylinder, and a hydraulic cylinder having a lower hydraulic compartment. A flow system fluidly connects the hydraulic cylinder, the reserve hydraulic cylinder, and the brake cylinder. The flow system has first and second flow paths in communication with the lower hydraulic compartment and the reserve hydraulic cylinder. The first flow path is in communication with lower hydraulic compartment and the reserve hydraulic cylinder via the brake cylinder. The second flow path bypasses the brake hydraulic cylinder. 1. A prosthetic system comprising: a controller; and', a hydraulic cylinder having a lower hydraulic compartment;', 'a reserve hydraulic cylinder;', 'a brake hydraulic cylinder; and', 'a flow system fluidly connecting the hydraulic cylinder, the reserve hydraulic cylinder, and the brake cylinder, the flow system having first and second flow paths in communication with the lower hydraulic compartment and the reserve hydraulic cylinder, the first flow path being in communication with the lower hydraulic compartment and the reserve hydraulic cylinder via the brake hydraulic cylinder, and the second flow path bypassing the brake hydraulic cylinder., 'a hydraulic unit pivotally connected to the controller, the hydraulic unit including], 'a prosthetic knee including2. The prosthetic system of claim 1 , wherein the first flow path is in fluid communication with the lower hydraulic compartment claim 1 , the upper hydraulic compartment claim 1 , the reserve hydraulic cylinder claim 1 , and the brake hydraulic cylinder.3. The prosthetic system of claim 2 , wherein the second flow path is in fluid communication with the lower hydraulic component and the reserve hydraulic cylinder.4. The prosthetic system of claim 1 , further comprising a connecting mechanism pivotally connected ...

Modular Prosthetic Sockets and Method for Making Same

A prosthetic socket for a residual limb of the lower extremity or upper extremity of an individual person is provided. The residual limb has particular dimensions and anatomical contours; the prosthetic socket has dimensions and contours that fit the dimensions and contours of the residual limb. The prosthetic socket may also fit in a manner that is biomechanically appropriate for the individual. The prosthetic socket may be an assembly from groups of components that include (a) struts arranged longitudinally with respect to the residual limb, (b) proximal brim members arranged proximally to the struts and connected thereto; and (c) distal socket members disposed at the distal base of the prosthetic socket. The socket components within these groups may be modular in that they can vary with respect to dimensions and/or contours, and yet have common connecting features that permit assembly of the components together to form the prosthetic socket. 1. A method of assembling a modular prosthetic socket for a residual limb of an amputee , the modular socket for use with a modular endoskeletal distal component , the method comprising:a) providing a plurality of longitudinal struts, each of the struts having a non-circular cross-sectional shape, each of the struts defining an interior side and an exterior side, proximal and distal ends, and a first thickness extending in dimension between the interior and exterior sides, and a first width transverse to the first thickness;b) providing a distal base having a proximal aspect and a distal aspect, the base adapted to couple relative to the modular endoskeletal distal component;c) providing a plurality of separable elements adapted to be received on at least an interior side of the proximal end of the struts, the separable elements having a second width greater than the first width of the struts;d) securing the spatial relationship of the struts in relation to the base; ande) coupling the plurality of separable elements to cover ...

Articulated mechanism, finger, and hand

An articulated mechanism system includes a plurality of fingers (articulated mechanisms) arranged in parallel, each of which has a mounting member, a first digital part rotatably connected to the mounting member by a first connecting part, a second digital part rotatably connected to the first digital part by a second connecting part, and a first driving part rotatably connected to the second digital part by a fourth connecting part and connected to a third connecting part. By extruding the third connecting part toward the fourth connecting part, the first digital part and the second digital part are integrally rotated about the first connecting part, or the second digital part is rotated about the second connecting part when the rotation of the first digital part is blocked. The third connecting parts are driven by a single driving mechanism for the same distance and in the same direction at a time.

PROSTHETIC AND ORTHOTIC DEVICES HAVING MAGNETORHEOLOGICAL ELASTOMER SPRING WITH CONTROLLABLE STIFFNESS

A prosthetic or orthotic device includes a body configured to support at least a portion of a human limb of a user wearing the prosthetic or orthotic device. The device can also include a shock absorption member coupled to the body. The shock absorption member includes one or more magnetorheological elastomer (MRE) springs disposed between a first portion of the body and a second portion of the body. The one or more MRE springs are selectively actuatable to vary a stiffness of the shock absorption member via the application of a magnetic flux, thereby adjusting a stiffness of the body of the prosthetic or orthotic device to a level corresponding to an activity level of the user. 1. (canceled)2. A prosthetic or orthotic device with movable members , comprising:first and second members configured to support at least a portion of a human limb of a user wearing the prosthetic or orthotic device; and a first component having a first end and a second end, the first component coupled to the first member;', 'a second component having a first end and a second end, the second member coupled to the second member;', 'a first spring coupling the first end of the first component to the first end of the second component and a second spring coupling the second end of the first component to the second end of second component, the first and second springs each comprising a magnetorheological elastomer (MRE) material; and', 'an inductive coil configured to apply a magnetic flux to the first and second springs,', 'wherein the second component is movable relative to the first component,', 'wherein the magnetic flux is configured to actuate the first and second springs to vary a force required to move the second member relative to the first member., 'a shock absorption module comprising3. The prosthetic or orthotic device of claim 2 , wherein the first component comprises a magnetic core.4. The prosthetic or orthotic device of claim 2 , wherein the first component is C-shaped or U-shaped ...

ADJUSTABLE STIFFNESS PROSTHETIC FOOT

A foot prosthesis that includes at least one spring element, an attachment member, and a heel member. The at least one spring element has a toe end portion, a heel end portion, an upper surface, and a lower surface. The attachment member is mounted to the upper surface and is configured to connect the foot prosthesis to a lower limb prosthesis component. A position of the attachment member is adjustable along a length of the at least one spring element. The heel member is mounted below the lower surface of the at least one spring element, and a position of the heel member is adjustable along the length of the at least one spring element. 1. A foot prosthesis , comprising: a top spring element;', 'a bottom spring element positioned vertically below the top spring element;', 'a heel end portion;', 'a toe end portion;', 'an adjustable stiffening member mounted to at least one of the top and bottom spring elements, the adjustable stiffening member being movable along a length of the spring assembly to adjust a point of contact between the top and bottom spring elements, a location of the point of contact determining a stiffness property of at least one of the top and bottom spring elements., 'a spring assembly, comprising2. The foot prosthesis of claim 1 , further comprising a heel spring member mounted to the bottom spring element and extending to a heel end of the foot prosthesis.3. The foot prosthesis of claim 1 , wherein at least one of the top and bottom spring elements defines the toe end portion and extends to a toe end of the foot prosthesis.4. The foot prosthesis of claim 1 , further comprising a spacer positioned between the first and second spring elements at the heel end portion.5. The foot prosthesis of claim 1 , wherein a portion of the adjustable stiffening member is positioned between the top and bottom spring elements and defines the point of contact.6. The foot prosthesis of claim 1 , wherein the adjustable stiffening member is mounted to the top ...

ADJUSTABLE PROSTHETIC INTERFACES AND RELATED SYSTEMS AND METHODS

Prosthesis devices can include sockets having adjustable features. In one example, a socket includes one or more panels that can move outwardly or inwardly relative to a receptacle portion of the socket. The panels can be moved by tightening a tensioning line. 151-. (canceled)52. An adjustable prosthetic socket , comprising:a receptacle comprising a cavity, a port, and a guide path extending through a wall of the receptacle;a panel disposed within the port of the receptacle and configured to move relative to the port, the panel comprising a guide path extending through a wall of the panel;a tensioning line extending through the guide path of the receptacle and through the guide path of the panel;a tightening member coupled to the tensioning line, wherein the tightening member is configured to increase or decrease tension in the tensioning line, wherein increasing tension in the tensioning line moves the panel radially inward.53. The adjustable prosthetic socket of claim 52 , further comprising a second panel disposed within a second port of the receptacle claim 52 , the second panel comprising a guide path extending through a wall of the second panel.54. The adjustable prosthetic socket of claim 53 , wherein the tensioning line extends through the guide path of the second panel such that increasing tension in the tensioning line moves the second panel radially inward.55. The adjustable prosthetic socket of claim 53 , further comprising a second tensioning line extending through a second guide path of the receptacle and through the guide path of the second panel; anda second tightening member coupled to the second tensioning line, wherein the second tightening member is configured to increase or decrease tension in the second tensioning line, wherein increasing tension in the second tensioning line moves the second panel radially inward.56. The adjustable prosthetic socket of claim 52 , wherein the panel extends longitudinally along a longitudinal length of the ...

Prosthetic foot with modular construction

A prosthetic foot includes a heel member having a heel member shaft extending upwardly from a heel end thereof and a forefoot member having a forefoot member shaft extending upwardly from a toe end thereof. An ankle member receives the heel member shaft and forefoot member shaft so as to allow the heel member shaft and forefoot member shaft to translate in a direction of a wearer's leg in response to an upward force thereon. At least one compressible member is coupled to the ankle member and is in compressible contact with the heel member shaft and/or forefoot member shaft so as to compress in response to the translation thereof.

Modular Prosthetic Sockets and Method for Making Same

A prosthetic socket for a residual limb of the lower extremity or upper extremity of an individual person is provided. The residual limb has particular dimensions and anatomical contours; the prosthetic socket has dimensions and contours that fit the dimensions and contours of the residual limb. The prosthetic socket may also fit in a manner that is biomechanically appropriate for the individual. The prosthetic socket may be an assembly from groups of components that include (a) struts arranged longitudinally with respect to the residual limb, (b) proximal brim members arranged proximally to the struts and connected thereto; and (c) distal socket members disposed at the distal base of the prosthetic socket. The socket components within these groups may be modular in that they can vary with respect to dimensions and/or contours, and yet have common connecting features that permit assembly of the components together to form the prosthetic socket. 1. A modular prosthetic socket for a residual limb of a human extremity for use with a modular endoskeletal distal component , the socket comprising:a) at least two longitudinal struts, each of the struts having a non-circular cross-sectional shape, each strut having proximal and distal ends;b) a distal base having a proximal aspect and a distal aspect, the base assembled in fixed relation to the struts and adapted to couple the struts to the modular endoskeletal distal component; andc) a distal cup positioned at the proximal aspect of the base, the distal cup having a tapered, concave interior at its distal end, the distal end smaller than the base and adapted to receive the residual limb.2. The modular prosthetic socket of claim 1 , wherein:the struts have an interior aspect facing radially inward and an exterior aspect facing radially outward, and the struts are rotatable relative to the base such that the interior aspect may be angularly displaced.3. The modular prosthetic socket of claim 1 , wherein:the struts have an ...

PROSTHETIC ANKLE JOINT MECHANISM

A self-aligning prosthetic foot and ankle assembly has an ankle unit pivotally mounting a foot component. The ankle unit contains a hydraulic piston and cylinder assembly having a piston which is linearly movable within a cylinder. The axis of the cylinder is coincident with a shin axis defined by a shin connection interface on the ankle unit. Bypass passages containing damping resistance control valves provide continuous hydraulic damping of dorsi and plantar ankle flexion, the unit being such that, over the major part of the range of damped movement, there is no resilient biasing in either the dorsi or the plantar direction. This confers a number of advantages, including stabilisation of standing, balance control, and improved stair-walking and ramp-walking. 137.-. (canceled)38. A prosthetic foot and ankle assembly comprising a combination of:a foot component, andan ankle joint mounted to the foot component and having a fixed range of dorsi-plantar flexion during walking, wherein a lower end of the ankle joint is pivotally mounted to the foot component at a pivotal connection about which the fixed range of dorsi-plantar flexion occurs, the ankle joint comprising a joint mechanism providing resistance to ankle flexion, wherein the joint mechanism comprises a hydraulic damper providing hydraulic damping and having a pair of variable-volume chambers and a valve arrangement controlling the flow of hydraulic fluid between the chambers, the valve arrangement comprising a first, locking valve having a first orifice and arranged to operate in a locked mode and in a yielding mode,wherein in the locked mode the first orifice is closed and the locking valve prevents flexion of the ankle joint and in the yielding mode the first orifice is open and allows flexion of the ankle joint.39. A prosthetic foot and ankle assembly as claimed in claim 38 , wherein the locking valve comprises a retaining mechanism for maintaining the locking valve in one or both of the locked and ...

Prosthetic foot with modular construction

A prosthetic foot includes a heel member having a heel member shaft extending upwardly from a heel end thereof and a forefoot member having a forefoot member shaft extending upwardly from a toe end thereof. An ankle member receives the heel member shaft and forefoot member shaft so as to allow the heel member shaft and forefoot member shaft to translate in a direction of a wearer's leg in response to an upward force thereon. At least one compressible member is coupled to the ankle member and is in compressible contact with the heel member shaft and/or forefoot member shaft so as to compress in response to the translation thereof.

BODY MOUNTED STABILIZING PROSTHESIS WITH ENVIRONMENTAL AWARENESS

The present invention is a robotic prosthesis comprising: a mounting plate designed to attach to a wearer; a first joint attached to the mounting plate, wherein the first joint provides for rotation about a fixed number of axes; an arm having a first end and a second end, wherein the first joint is secured to the first end; an attachment, connected to the second end of the arm, wherein the attachment has at least one camera; and a computing device, wherein the computing device is able to collect data from the at least one joints to control the positioning of the attachment. 1. A robotic prosthesis comprising:a mounting plate designed to attach to a wearer;a first joint attached to the mounting plate, wherein the first joint provides for rotation about a fixed number of axes;an arm having a first end and a second end, wherein the first joint is secured to the first end;an attachment, connected to the second end of the arm, wherein the attachment has at least one camera; anda computing device, wherein the computing device is able to collect data from the at least one joints to control the positioning of the attachment.2. The robotic prosthesis of claim 1 , further comprising claim 1 , a second joint secured to the second end of the arm claim 1 , wherein the second joint is able to rotate about a different axes as the first joint.3. The robotic prosthesis of claim 1 , wherein the joints are comprised of a first half claim 1 , a second half claim 1 , and an integrated motor claim 1 , wherein a sensor is connected to the first half and another sensor is connected to the second half claim 1 , and both sensors are able to transmit data to the computing device.4. The robotic prosthesis of claim 1 , wherein the computing device is integrated into the attachment.5. The robotic prosthesis of claim 1 , wherein the computing device is integrated into the mounting plate.6. The robotic prosthesis of claim 1 , wherein the attachment has a camera facing in a first direction and a ...

CONTROL OF A PASSIVE PROSTHETIC KNEE JOINT WITH ADJUSTABLE DAMPING

The invention relates to the control of a passive prosthetic knee joint with adjustable damping in the direction of flexion such that a prosthetic unit attached to the knee joint can be adapted for climbing stairs. 112-. (canceled)13. A method for initiating and implementing a stairclimbing mode in a passive prosthetic knee joint connected to a prosthetic leg unit including a prosthetic foot , the method comprising:detecting with at least one sensor of the passive prosthetic knee joint a lift phase of the prosthetic foot, the at least one sensor generating sensor data;reducing a flexion damping level of the passive prosthetic knee joint in the lift phase in response to the sensor data to a reduced level that is below a level used by the passive prosthetic knee joint for walking on level ground;detecting a lowering phase of the prosthetic foot;increasing the flexion damping level of the passive prosthetic knee joint in the lowering phase from the reduced level to an increased level that is above the level that is used for walking on level ground; andmaintaining the increased level until a straightened hip is detected when in the lowering phase.14. The method of claim 13 , wherein in the lowering phase claim 13 , an extension damping level is increased to an increased level that is above a level that is used for walking on level ground.15. A method of controlling a passive prosthetic knee joint with adjustable damping in the direction of flexion such that a prosthetic unit that is connected to the passive prosthetic knee joint claim 13 , and that includes an artificial foot claim 13 , can climb stairs claim 13 , the method comprising:detecting with at least one sensor of the passive prosthetic knee joint a low-torque lift of the prosthetic foot, the at least one sensor generating sensor data, andlowering the flexion damping in a lift phase in response to the sensor data to below a level that is used for walking on level ground;increasing extension damping and flexion ...

SUPPORT APPARATUS WITH ADJUSTABLE STIFFNESS

A foot orthotic having a body adapted to support a foot of a user is disclosed. The foot orthotic has a stiffness adjusting member () adapted to be mounted to the body to adjust the stiffness of the orthotic. Protrusions on the body enable the stiffness adjusting member () to be mounted to the body. 1. A support apparatus comprising:a body adapted to support a body part of a user; andat least one stiffness adjusting member adapted to be mounted to said body to adjust the stiffness of the apparatus;wherein said body comprises at least one first engaging device and at least one said stiffness adjusting member comprises at least one respective second engaging device for engaging said at least one first engaging device to mount the stiffness adjusting member to the body.2. The apparatus according to wherein said at least one first and/or second engaging device comprises at least one respective protrusion.3. The apparatus according to wherein said first at least one and/or second engaging device comprises at least one respective recess.4. The apparatus according to or claim 1 , wherein at least one said first and/or second engaging device comprises a respective plurality of said recess and/or protrusions or at least one said recess and one said protrusion.5. The apparatus according to claim 1 , wherein said body and/or said at least one first engaging device and/or said at least one second engaging device and/or at least one said stiffness adjusting member is manufactured by additive manufacturing.6. The apparatus according to claim 1 , wherein the apparatus is an orthotic and/or prosthetic apparatus.7. A method of altering the stiffness of a support apparatus claim 1 , the method comprising:providing a body adapted to support a boy part of a user;providing at least one stiffness adjusting member adapated to be mounted to said body to adjust the stiffness of the apparatus;wherein said body comprises at least one first engaging device and at least one said stiffness ...

ORTHOPEDIC SYSTEM AND METHOD FOR ITS CONTROL

An orthopedic system having at least one stimulation electrode for activating at least one muscle, an orthotic or prosthetic device, which may be placed on a patient's body and secured there with at least one joint by which a proximal and a distal component of the orthotic or prosthetic device are connected to each other in swivelling fashion, at least one adjustable resistance device which is arranged between the distal component and the proximal component and with which a motion resistance against a swivelling of the proximal component relative to the distal component is adjustable, sensors for detecting of forces positions, accelerations and/or torques, and a control device which is coupled to the sensors and the resistance device, processes sensor values of the sensors and adjusts the resistance device in dependence on the sensor values. 1. A orthopedic system , comprising:at least one stimulation electrode to activate at least one muscle; a proximal component;', 'a distal component;', 'at least one joint connecting the proximal and distal components to each other with a swivel connection;, "an orthotic or prosthetic device configured to be secured to a patient's body, the orthotic or prosthetic device comprising:"}at least one adjustable resistance device arranged between the distal and proximal components and operable to provide adjustable resistance against relative swivelling between the proximal and distal components;a plurality of sensors to detect at least one of forces, positions, accelerations and torques;a control device coupled to the sensors and the at least one adjustable resistance device, the control device processing sensor values received from the sensors and adjusting the at least one adjustable resistance device based on the sensor values.2. The orthopedic system according to claim 1 , wherein the at least one stimulation electrode is designed as a surface electrode or as an implant.3. The orthopedic system according to claim 1 , wherein the ...

GASTRIC RESIDENCE SYSTEM

The present disclosure is in the field of gastric resident systems. A device for extended retention in a stomach is provided. The device includes: first, second, and third arms, the second and third arms being pivotally connected to respective ends of the first arm. The device is configured to transform between a compressed configuration and an expanded configuration. The device further includes a biasing member configured to bias the device into the expanded configuration whereby the second and third arms are configured to mechanically engage each other to retain the system in the expanded configuration. 1. A device for extended retention in a human stomach , the device comprising:a first arm comprising a first end and a second opposing end, a second arm and a third arm, the second and third arms being pivotally connected to the first end and the second end of the first arm, respectively,wherein the device is configured to transform between a compressed configuration and an expanded configuration,the device further comprising a biasing member configured to bias the device into the expanded configuration wherein in the expanded configuration, the second and third arms are configured to mechanically engage each other to retain the device in the expanded configuration.2. The device according to wherein a portion of the second arm distal from the first arm and a portion of the third arm distal from the first arm are configured to mechanically engage each other in the expanded configuration.3. The device according to wherein the third arm comprises a retaining surface against which the second arm engages when the device is in the expanded configuration.4. The device according to wherein the third arm comprises a protrusion against which the second arm engages when the device is in the expanded configuration.5. The device according to wherein the protrusion is provided at an opposite end of the third arm to the first arm and wherein in the expanded configuration claim 4 ...

LAYERING TECHNIQUE FOR AN ADJUSTABLE, REPAIRABLE VARIABLE STIFFNESS PROSTHETIC FOOT

A modular prosthetic foot includes a keel section and in some cases, an optional heel section. The keel section may also include an optional toe section. The keel section can include separate layers of various stiffnesses, wherein the optional toe section and the optional heel section are composed of varying stiffness layers nested together. The stiffness of the keel section is adjustable by a user without specialized tools. The components of the prosthetic foot are modular and can be removed and exchanged without altering the fit and alignment of the prosthetic foot. 1. A prosthetic foot , comprising:a plurality of removable layers of various stiffnesses, wherein said plurality of removable layers of various stiffnesses comprises n layers;wherein said plurality of removable layers of various stiffnesses is composed of a first set of plies, a second set of plies, and a third set of plies;wherein a stiffness of said prosthetic foot increases with an increased number of said second set plies in a layer; andwherein a keel stiffness of said prosthetic foot is variable and customized according to the needs of a user of said prosthetic foot.2. The prosthetic foot of wherein said plurality of removable layers of various stiffnesses contains said first set of plies oriented at 45°.3. The prosthetic foot of wherein said plurality of removable layers of various stiffnesses contains said second set of plies oriented at 0°.4. The prosthetic foot of wherein said plurality of removable layers of various stiffnesses contains said third set of plies oriented at 45°.5. The prosthetic foot of wherein said stiffness increases of said prosthetic foot with an increased number of said second set of plies oriented at 0° in a layer.6. The prosthetic foot of wherein said plurality of removable layers of various stiffnesses is composed of said first set of plies oriented at 45° claim 1 , said second set of plies oriented at 0° claim 1 , and said third set of plies oriented at 45°.7. The ...

Laminated spring containing valve, control method of this valve and prosthetic joint that includes the valve

Present invention concerns a laminated spring containing valve on a cylinder that contains two compartments which are separated by a piston, which ensures the adjustment of the fluid flow rate between the two compartments by being sensitive to the pressure difference between the two compartment. Present invention explains a valve and its control method which provides a dynamical control over the fluid flow between the two compartments and the flow rate. Besides, this invention explains a valve set and a prosthetic joint, which contains this set, that ensures the adaptive movement of the prosthetic limbs of the amputees with the natural movement phases.

PROSTHETIC FOOT WITH VARIABLE STIFFNESS ANKLE

A prosthetic foot can have an ankle unit with semi-active adjustable stiffness. In one example, the adjustable stiffness is in the sagittal plane. The ankle stiffness can be varied by the ankle unit in response a user input, which can be received via a wireless communication device. The ankle unit can include two load application locations for one or more cantilever springs so as to provide different stiffness in plantarflexion and dorsiflexion. The positions of the two load application locations can be varied in order to vary the stiffness.

Prosthetic socket systems and methods

Systems and methods are described herein for a prosthetic device that includes a premade outer shell socket with an inner surface contour. A prosthetic insert socket is manufactured via a manufacturing process, such as three-dimensional printing, to have an outer contour that corresponds to the inner surface contour of the premade outer shell socket. The prosthetic insert socket is manufactured to have an inner contour that corresponds to a residual limb surface contour of a patient.

High density actuator with minimal lateral torsion

A high density actuator, comprising a housing assembly composed of a first housing element containing a motor stator and a second housing element containing a gear reduction mechanism, a rotational core positioned at the center of the housing assembly, the rotational core being composed of a motor rotor and a transmission input operatively connected to the motor rotor, a transmission output positioned between the transmission input and the housing assembly, the transmission output forming an actuator output, a torque transfer output operatively connected to the actuator output and a center shaft connected to the torque transfer output in its center and in rotational contact with the first housing element, the center shaft passing through the transmission output, rotational core and second housing element to ensure proper radial and axial alignment.

Prosthetic apparatus and method therefor

Various aspects of the present disclosure characterize apparatuses and/or methods as may be implemented with a variety of prosthetic components and applications. As may be consistent with one or more embodiments described herein, movement parameters pertaining to movement of a user of a prosthetic foot are sensed as the user travels along a surface, with the prosthetic foot having a front ball region and a rear heel region for respectively contacting the surface. A state of movement of the user, including a speed at which the user is travelling along the surface, is determined based on the sensed movement parameters. Utilizing a mechanical actuator, the prosthetic foot is dynamically positioned in response to the speed at which the user is travelling along the surface, by manipulating the mechanical actuator to move the rear heel region relative to the front ball region based on changes in the speed.

LOWER LIMB PROSTHESIS

A prosthetic ankle has an ankle joint body (A) constituting a shin component and a foot component (). The ankle joint body (A) is pivotally connected to the foot component () by a first pivotal connection () defining a medial-lateral ankle joint flexion axis. The ankle joint body (A) also forms the cylinder of an ankle joint piston and cylinder assembly with a superior-inferior central axis, the cylinder housing a piston () with upper and lower piston rods (A, B). The lower piston rod (B) is pivotally connected to the foot component () at a second pivotal connection (). As the ankle joint body (A) pivots about the ankle joint flexion axis, the piston () moves substantially linearly in the cylinder formed by the ankle joint body. The cylinder is divided into upper and lower chambers (A, B). These chambers are linked by an hydraulic circuit () incorporating passages (A, B) in the ankle joint body (A), and an energy conversion device in the form of a slave piston and cylinder assembly () having a piston (P) and piston rods (R) which project beyond the cylinder (C) of the assembly (). 16-. (canceled)7. An ankle joint prosthesis comprising a shin member and a foot member and constructed such that the foot member is able to execute a flexion movement relative to the shin member , and a flexion control system for controlling the relative flexion movement between the shin member and the foot member , wherein the flexion control system comprises:an hydraulic circuit including an hydraulic ankle flexion control device interconnecting the shin member and foot member, and an energy conversion device for converting fluid flow energy in the hydraulic circuit resulting from ankle flexion into mechanical movement and vice versa; andan energy input arranged to receive energy into the ankle flexion control system from an external energy source;and wherein the ankle joint prosthesis further comprises at least one sensor for sensing a kinetic or kinematic parameter of locomotion and a ...

Multi-Grasp Prosthetic Hand

The present invention provides a prosthetic hand capable of multiple grasp types. The prosthetic finger units are underactuated both within and between the finger units using a differential mechanism arrangement. The locking movement of the prosthetic thumb unit is coupled to the differential mechanism. As the user repositions the prosthetic thumb unit, the differential mechanism is effected as to alter both the initial positions and force distribution of the prosthetic finger units. The present invention further provides an additive manufacturing molding method for making the same. 1. A prosthetic hand device comprising:a hand frame having a differential mechanism connected to an actuable index finger unit, at least one actuable secondary finger unit and an actuable thumb unit;wherein the actuable thumb unit includes a plurality of lockable positions, wherein each lockable position corresponds to a different grasping configuration of the prosthetic hand.2. The device of claim 1 , wherein the differential mechanism comprises:a first bar having a pin joint at its midpoint and is coupled to at least one tendon line of the at least one secondary finger unit; anda second bar coupled to an index finger tendon line and an index finger orientation cable at one end, to a thumb orientation cable at the opposite end, to a main actuation cable along its length, and to the pin joint of the first bar at a point between the second bar's midpoint and the thumb orientation cable coupling;wherein movement of the first bar opens and closes the at least one secondary finger unit at the same time; wherein movement of the second bar opens and closes the index finger unit independently; and wherein the orientation of the thumb unit alters the configuration of the differential mechanism by applying tension on the thumb orientation cable and the index finger orientation cable.3. The device of claim 1 , wherein the at least one secondary finger unit claim 1 , index finger unit and the thumb ...

GAIT STATE DETERMINATION APPARATUS, GAIT STATE DETERMINATION METHOD, AND WALKING TRAINING APPARATUS

A gait state determination apparatus includes a foot attachment structure disposed in the walking assistance apparatus, the foot attachment structure to be attached to a foot of a user, pressure detection means, disposed in the foot attachment structure, for detecting a pressure exerted on a sole of the user, pressure center calculation means for successively calculating a center position of a pressure exerted on the sole during a gait motion of the user based on the pressure exerted on the sole detected by the pressure detection means, and motion determination means for determining that it is a timing of a start of forward swinging of the leg to which the walking assistance apparatus is attached when the center position of the pressure calculated by the pressure center calculation means is shifted from a position in a heel region of the sole to a toe region thereof. 1. A gait state determination apparatus that determines a gait state of a user with a walking assistance apparatus attached to a leg of the user , the walking assistance apparatus being configured to assist the user to walk , the gait state determination apparatus comprising:a foot attachment structure disposed in the walking assistance apparatus, the foot attachment structure to be attached to a foot of the user;pressure detection means, disposed in the foot attachment structure, for detecting a pressure exerted on a sole of the user;pressure center calculation means for successively calculating a center position of a pressure exerted on the sole during a gait motion of the user based on the pressure exerted on the sole detected by the pressure detection means; andmotion determination means for determining that it is a timing of a start of forward swinging of the leg to which the walking assistance apparatus is attached when the center position of the pressure calculated by the pressure center calculation means is shifted from a position in a heel region of the sole to a toe region thereof.2. The gait ...

PROSTHETIC DEVICE

The invention relates to a prosthetic device for a lower extremity having a prosthetic knee joint having: an upper part, on which a proximal prosthetic component is arranged; a lower part, which is connected to the upper part so as to be pivotable about a knee joint axis; and a distal prosthetic component, on which a prosthetic foot is formed or can be attached, wherein the distal prosthetic component is mounted so as to be displaceable in the direction of the knee joint axis by means of an axial force acting in the longitudinal extent of the distal prosthetic component and a force transmission device is associated with the knee joint, which force transmission device, during the standing phase, converts a displacement or length change of the distal prosthetic component in the direction of the knee joint axis into a flexion moment about the knee joint axis. 1. A prosthetic device for a lower extremity , comprising a prosthetic knee joint having an upper part , on which a proximal prosthetic component is arranged , a lower part , which is connected to the upper part so to be pivotable about a knee joint axis , and a distal prosthetic component , on which a prosthetic foot is formed or can be secured , characterized in that the distal prosthetic component is mounted so as to be displaceable in the direction of the knee joint axis by means of an axial force acting in the longitudinal extent of the distal prosthetic component , and the knee joint is assigned a force transmission device which , in the stance phase , converts a displacement of the distal prosthetic component in the direction of the knee joint axis into a flexion moment about the knee joint axis.2. The prosthetic device according to claim 1 , wherein the distal prosthetic component is formed telescopically or mounted displaceably on the lower part.3. The prosthetic device according to claim 1 , wherein the force transmission device is in the form of a mechanical or hydraulic force transmission device.4. The ...

Method for controlling an orthotic or prosthetic device and orthotic or prosthetic device

The invention relates to a method for controlling an orthotic or prosthetic device and an orthotic or prosthetic device, which can be placed on the body of a user and secured, including a joint device having a proximal component and a distal component, which are pivotally mounted on one another about a pivot axis; at least one adjustable actuator which is arranged between the proximal component and the distal component and via which a movement behaviour relating to a pivoting of the proximal component relative to the distal component can be adjusted; at least one detection device for detecting muscle contractions; and a control device which is coupled to the detection device and to the actuator, processes (electrical) signals from the detection unit, and adjusts the actuator according to the signals, wherein the detection device is designed for detecting muscle contractions.

Prosthetic liner with selective pressure adjustment

A prosthetic liner for insertion within a socket of a prosthetic limb is provided. The prosthetic liner comprises a body having inflatable bladders and pressure sensors disposed thereon, an electronic circuit, one or more actuators, and a processor. The body receives a residual limb on an interior surface and contacts the socket on an exterior surface. The processor receives a digital pressure signal indicative of a detected pressure from each pressure sensor via the electronic circuit and selectively activates the actuators to adjust a pressure in one or more of the inflatable bladders based on the digital pressure signals and the region of the body corresponding to each digital pressure signal.

PROSTHETIC KNEE WITH SWING ASSIST

The present disclosure provides for a device and method of control for an artificial prosthetic knee. A prosthetic knee according to the present disclosure relies on strictly passive means of providing support during weight bearing and supplements a resistive swing-phase mechanism with a small powered actuator. This actuator adds power to the knee, exclusively during swing phase, to improve swing-phase behavior. In particular, the knee still relies on the resistive swing-phase mechanism to provide nominal swing-phase knee motion, but supplements that motion as needed with the small powered actuator. 1. A knee prosthesis , comprising:a shank link;a thigh link rotatably coupled to the shank link;at least one resistive control element configured to apply both first and second levels of resistance in resisting rotation of the thigh link relative to the shank link;at least one powered control element, distinct and separate from the resistive control element, configured to power rotation of the thigh link relative to the shank link;at least one sensor; and receive sensor measurements from the at least one sensor and determine, based at least on the sensor measurements, a present state of a plurality of states comprising at least a swing state and a stance state;', 'cause the at least one resistive control element to apply a first level of resistance if the present state is a swing state;', 'cause the at least one resistive control element to apply a second level of resistance if the present state is a stance state; and', 'cause the at least one powered control element to power rotation if the present state is a swing state., 'a controller, coupled to the at least one sensor, that is configured to2. The knee prosthesis of claim 1 , wherein the at least one powered control element is configured to apply a maximum torque on the knee prosthesis substantially smaller than a maximum torque applied by the at least one resistive control element.3. The knee prosthesis of claim 2 , ...

Quasi Passive Assistive Device

Implementations of a quasi-passive assistive device are disclosed. Such a device may comprise a spring mechanism that increases stiffness similar to a biological ankle. In one implementation, the spring mechanism may comprise a piston, valve, springs, or other elements to match a biological stiffness profile similar to that of a biological ankle. In one implementation, an apparatus for an artificial ankle is disclosed, comprising a piston coupled to a spring and the piston connected to a valve. The spring and the piston may store energy during dorsiflexion of the ankle and the spring and the piston release energy during plantarflexion of the ankle. The piston may store and release energy through the use of the valve. 1. An ankle prosthesis , comprising:a spring and a piston forming a spring-piston assembly; 'store an energy produced by a dorsiflexion of the ankle prosthesis and release at least a portion of the stored energy during a plantarflexion of the ankle prosthesis.', 'the spring-piston assembly disposed as to'}2. The ankle prosthesis of claim 1 , wherein the spring is a bending spring.3. The ankle prosthesis of claim 2 , wherein the bending spring is made of fiberglass.4. The ankle prosthesis of claim 1 , the prosthesis further comprising a housing claim 1 , wherein the spring is positioned outside of the housing.5. The ankle prosthesis of claim 1 , further comprising a connector for attachment of the ankle prosthesis to an artificial limb claim 1 , wherein the spring-piston assembly is disposed such that the spring is proximal to the connector and the piston is distal to the connector.6. The ankle prosthesis of claim 1 , further comprising a valve coupled to the piston claim 1 , the valve configured to open or close the piston.7. The ankle prosthesis of claim 1 , wherein the piston has an output force capability of 800 Newtons.8. The ankle prosthesis of claim 6 , wherein the valve is a solenoid valve.9. The ankle prosthesis of claim 1 , the ankle prosthesis ...

LOWER LIMB PROSTHESIS

A lower limb prosthesis comprises a knee chassis (), a shin carrier () pivotally connected to the knee chassis () and a piston and cylinder assembly () pivotally connected to the knee chassis () and the shin carrier (). The piston and cylinder assembly () comprises a piston assembly () comprising a piston () mounted on a piston rod (), a cylinder body (B) having a cavity () defining a cylinder within which the piston () is arranged to reciprocate along the piston and cylinder assembly axis, and a foot component attachment means () for attaching a foot component to the piston and cylinder assembly (). 1. A lower limb prosthesis , comprising:a knee chassis;a shin carrier pivotally connected to the knee chassis; and a piston assembly comprising a piston mounted on a piston rod; and', 'a cylinder body having a cavity defining a cylinder within which the piston is arranged to reciprocate;, 'a piston and cylinder assembly pivotally connected to the knee chassis and the shin carrier, the piston and cylinder assembly comprising the knee chassis is pivotally connected to the shin carrier to pivot around an anterior knee pivot axis (A);', 'the knee chassis is pivotally connected to the piston and cylinder assembly to pivot around a posterior knee pivot axis (C); and', 'the shin carrier is pivotally connected to the piston and cylinder assembly to pivot around a distal pivot axis (B),, 'whereinwherein the piston and cylinder assembly further comprises, distal to the distal pivot point (B), a foot component having a lower surface, and a distance from the anterior knee pivot axis (A) to the distal pivot axis (B) is more that 20% of a distance from the anterior knee pivot axis (A) to the lower surface of the foot component, orthe piston and cylinder assembly further comprises, distal to the distal pivot point (B), attachment means for attaching a foot component to the piston and cylinder assembly, said foot component having a lower surface, and, in use, when said foot component ...

Foot prosthesis with resilient multi-axial ankle

The present foot prosthesis includes various structural features that provide the foot with advantageous rollover properties. In certain embodiments, the foot guides rollover toward the medial side. For example, an asymmetrical upper element and a correspondingly shaped resilient ankle member support more of the wearer's weight on the lateral side as the foot rolls over. In another embodiment, stiffeners added to the resilient ankle member increase the stiffness on the lateral side relative to the medial side. In certain other embodiments, the foot provides progressively increasing support from mid stance through toe off. For example, a gap between the resilient ankle member and the lower element closes during the later portion of the wearer's gait. The closing gap increases a contact area between the resilient ankle member and the lower element, providing progressively increasing support. In another embodiment, the foot includes a gap between a lower front edge of an attachment adapter and the upper element. The gap may be filled with a resilient material.

ARTIFICIAL LIMB

An artificial limb. The artificial includes a finger part and a drive unit for the finger part. The drive unit includes: a drive output part, a movable part and a drive rope. The movable part is configured to be connected with the drive output part and is capable of moving under a drive of the drive output part. The drive rope is configured to be disposed in the finger part and connected with the movable part and is capable of converting a movement of the movable part into a motion of the finger part. 1. An artificial limb , comprising a finger part and a drive unit for the finger part , wherein the drive unit comprises:a drive output part;a movable part, wherein the movable part is configured to be connected with the drive output part and is capable of moving under a drive of the drive output part; anda drive rope, wherein the drive rope is configured to be disposed in the finger part and connected with the movable part and is capable of converting a movement of the movable part into a motion of the finger part.2. The artificial limb according to claim 1 , further comprising a body part claim 1 , whereinthe finger part comprises a rotary joint,the rotary joint is configured to be pivotally connected with the body part, andthe drive rope of the drive unit is configured to be connected with the rotary joint so as to convert the movement of the movable part of the drive unit into a rotary motion of the finger part relative to the body part.3. The artificial limb according to claim 1 , wherein the finger part comprises at least two pivotally connected finger sections claim 1 , andan end of the drive rope is configured to be connected with a far finger section of the at least two finger sections, the far finger section is far away from the movable part, and a remaining end of the drive rope is configured to be connected with the movable part, so that the drive rope converts the movement of the movable part into a bending motion between the at least two finger sections ...

Lower limb prosthesis comprising a hydraulic damping and a vacuum generating mechanism

A lower limb prosthesis comprises a foot component and an ankle unit pivotally mounted to the foot component. The ankle unit comprises an ankle joint mechanism comprising a hydraulic piston and cylinder assembly for providing hydraulic damping whenever the ankle joint flexes, and a vacuum mechanism comprising a pneumatic piston and cylinder assembly for generating a vacuum. The hydraulic and pneumatic piston and cylinder assemblies are arranged such that the vacuum mechanism generates a vacuum during plantar-flexion of the ankle unit.

Control system and method for a prosthetic knee

A prosthetic or orthotic system including a magnetorheological (MR) damper. The MR damper may be configured to operate in shear mode. In one embodiment, the MR damper includes a rotary MR damper. A controller is configured to operate the damper. A mobile computing device may be adapted to intermittently communicate configuration parameters to the controller. A method of configuring a prosthetic or orthotic system is also disclosed.

VARIABLE STIFFNESS PROSTHETIC FOOT

Prosthetic feet that provide for variable and adjustable stiffness are provided. A foot element can include a tongue portion defined or formed by a slot in the foot element that at least partially separates the tongue portion from a remainder of the foot element. The tongue portion can be operably connected to the remainder of the foot member to increase the stiffness of the foot member or operably disconnected from the remainder of the foot member to increase the flexibility of the foot member. The prosthetic foot further includes a mechanism for adjusting whether the tongue portion is operably connected or disconnected from the remainder of the foot member. The mechanism can be selectively actuated to adjust the stiffness of the foot element in dorsiflexion and/or plantarflexion and/or to adjust the degree to which the tongue portion is allowed to flex relative to the remainder of the foot member. 1. A prosthetic foot comprising:an elongate foot element extending from a proximal end to a distal end, the foot element comprising a tongue portion defined by a slot in the foot element that at least partially separates the tongue portion from a remainder of the elongate foot element; anda mechanism configured to be selectively actuated to operatively connect or operatively disconnect the tongue portion from the remainder of the foot element, wherein when the tongue portion is operatively connected to the remainder of the foot element the foot element exhibits relatively greater stiffness, and when the tongue portion is operatively disconnected from the remainder of the foot element the foot element exhibits relatively lower stiffness.2. The prosthetic foot of claim 1 , wherein the mechanism is configured to be selectively actuated to adjust the stiffness of the foot element in one or both of plantarflexion and dorsiflexion.3. The prosthetic foot of claim 2 , wherein the mechanism comprises first and second engagement members coupled to the tongue portion claim 2 , the ...

METHOD FOR CONTROLLING A DAMPING MODIFICATION

A method for controlling a damping modification in an artificial knee joint of an orthosis, an exoskeleton, or a prosthesis. The artificial knee joint has an upper part pivotally connected to a lower part A resistance unit is secured between the upper part and the lower part in order to provide a resistance against a flexion or extension The resistance unit is paired with an adjustment device to modify the resistance when a sensor signal of a control unit paired with the adjustment device activates the adjustment device. The flexion resistance is reduced for the swing phase. A curve of at least one load characteristic is detected when walking or standing; a maximum of the load characteristic curve when standing is ascertained; and the flexion damping is reduced to a swing-phase damping level during the standing phase when a threshold of the load characteristic below a maximum is reached. 1. A method for controlling a damping variation in an artificial knee joint of an orthosis , an exoskeleton or prosthesis , the method comprising:providing an artificial knee joint with an upper part and a lower part, which are fastened to one another in a manner pivotable about a pivot axis , a resistance unit fastened between the upper part and the lower part to provide a resistance to flexion or extension of the artificial knee joint and an adjustment device assigned to the resistance device to vary the resistance when a sensor signal of a control unit assigned to the adjustment device activates the adjustment device;reducing the flexion resistance for a swing phase;capturing a profile of at least one load characteristic when walking or standing, the at least one load characteristic acting on the orthosis, exoskeleton or prosthesis;ascertaining a maximum of the at least one load characteristic profile during a stance phase or when standing;after reaching the maximum, reducing the flexion damping during the stance phase to a swing phase damping level if a threshold of the at least ...

METHOD FOR CONTROLLING THE STANDING-PHASE DAMPING OF AN ARTIFICIAL KNEE JOINT

A method for controlling the standing-phase damping of an artificial knee joint comprising an upper part and a lower part which are secured together in a pivotal manner about a pivot axis, a resistance unit which is arranged between the upper part and the lower part and has an adjustment device via which the damping resistance can be modified, and a control unit which is coupled to the adjustment device and which is connected to at least one sensor. The adjustment is carried out on the basis of sensor data, and the knee angle is detected by the at least one sensor during the standing-phase inflexion up to the terminal standing phase. The flexion damping is increased to a level above an initial flexion damping in order to prevent a further inflexion upon reaching a specified maximum knee angle. 1. A method for controlling the stance phase damping of an artificial knee joint , the method comprising:providing an upper part and a lower part which are fastened to one another in a manner pivotable about a pivot axis, a resistance unit which is arranged between the upper part and the lower part and which has an adjustment device to modify the damping resistance, a control unit which is coupled to the adjustment device and which is connected at least to one sensor, wherein the adjustment is carried out using sensor data from the at least one sensor;detecting, during stance phase flexion up until the terminal stance phase, a knee angle using the at least one sensor;increasing the flexion damping to a level above an initial flexion damping, to a point of prevention of further flexion when a set maximum knee angle is reached.2. The method as claimed in claim 1 , wherein the flexion damping is held at the level when the maximum knee angle is reached.3. The method as claimed in claim 1 , wherein the flexion damping is held constant during an initial heel strike and the flexion damping is increased in a manner dependent on a load.4. The method as claimed in claim 1 , wherein a ...

Joint power

Systems and methods are disclosed for assisting body motion by attaching a plurality of rods to a body; sensing movement parameters with sensors coupled to the rods; transmitting the movement parameters to a wearable device and receiving actuation commands from the wearable device; and based on the received commands, actuating the rods with one or more actuators.

Prosthetic Partial Fingers

Various embodiments of the present invention generally relate to prosthetic partial finger designs that can mimic the last two joints of the finger. Some embodiments include a proximal phalange, a distal phalange coupled to the proximal phalange, and a knuckle track (e.g., formed in an arc). The knuckle track can be moveably coupled to the proximal phalange an may include multiple teeth formed on which the proximal phalange slides along. A ratcheting mechanism can contact the multiple teeth to allow sliding in only a first direction while the ratcheting mechanism is engaged. Some embodiments include a release mechanism (e.g., a button) configured to disengage the ratcheting mechanism from the multiple teeth to allow the distal phalange to slide in a second direction. In some embodiments, the device may include a spring-back capability that automatically extends the finger after reaching full finger flexion, enabling one-handed use.

Controlling torque in a prosthesis or orthosis based on a deflection of series elastic element

In some embodiments of a prosthetic or orthotic ankle/foot, a prediction is made of what the walking speed will be during an upcoming step. When the predicted walking speed is slow, the characteristics of the apparatus are then modified so that less net-work that is performed during that step (as compared to when the predicted walking speed is fast). This may be implemented using one sensor from which the walking speed can be predicted, and a second sensor from which ankle torque can be determined. A controller receives inputs from those sensors, and controls a motor's torque so that the torque for slow walking speeds is lower than the torque for fast walking speeds. This reduces the work performed by the actuator over a gait cycle and the peak actuator power delivered during the gait cycle. In some embodiments, a series elastic element is connected in series with a motor that can drive the ankle, and at least one sensor is provided with an output from which a deflection of the series elastic element can be determined. A controller determines a desired torque based on the output, and controls the motor's torque based on the determined desired torque.

UNIDIRECTIONAL ACTUATED EXOSKELETON DEVICE

The present invention is directed to an autonomous exoskeleton device that includes one or more actuators, one or more controllers, one or more sensors with one or more unidirectional transmissions. The present invention provides a mechanical joint in parallel with a biological joint. The exoskeleton device preferably includes and electric motor and winch, chain, belt, cam transmission or other mechanism for providing unidirectional force to assist rotation about the biologic joint. Moreover, a controller, a motor angle sensor, joint angle sensor and/or force sensor may be used for additional control and monitoring of the device. The motor may be any type of motor, but is preferably brushless in configuration where its diameter is larger than its length to provide a compact and lightweight exoskeleton device. 1. A biomechanical joint for generating torque about an axis of a body joint , comprising:a first structure connected to a first body segment on the proximal side of a body joint;a second structure connected to a second body segment on the distal side of the body joint;the first structure and the second structure being pivotally connected to each other;an electric motor having a motor axis of rotation; the motor attached to the first structure;the motor axis of rotation being perpendicular to the major axis of the first body segment; the electric motor being configured and arranged with a unidirectional transmission; andthe unidirectional transmission connected to both the first structure and second structure.2. The biomechanical joint of claim 1 , wherein the first structure and the second structure are connected via a rotational joint.3. The biomechanical joint of claim 2 , wherein the rotational joint includes a rotary encoder.4. The biomechanical joint of claim 2 , wherein the rotational joint includes a plurality of bearings.5. The biomechanical joint of claim 1 , wherein a mass of the exoskeleton is located on a lateral claim 1 , anterior claim 1 , and/or ...

System and Method of Bidirectional Compliant Joint Torque Actuation

A joint actuation device for adding torque to a joint of a user includes an actuation system having an actuator and a spring. A lever is configured to couple to the user's leg and to the actuation system. The lever configured to rotate at a device joint with respect to the actuation system. A first sensor measures a position of the device joint. A second sensor measures deflection in a spring. The actuator is positioned based on the position of the device joint and deflection in the spring. The actuator is configured to deflect the spring to apply a torque the device joint. The device joint aligns with the user's joint to add a torque to the user's joint during a gait activity. The actuator disengages the spring during a non-gait activity. The lever is configured to disengage from the actuator when the device joint exceeds a predetermined angle.

Volume Adjustable Full-Suspension Socket

The Prosthetic industry has never had a design that adequately addresses the Above Knee (AK) chronic patient issue of daily volume loss, or the issue of socket rotation, or reliable suspension. Below Knee (BK) amputees can ambulate freely and safely with a variety of suspension technologies. This is due to the fact that the BK amputee does not have excessive soft tissue, resulting in volume loss and limb elongation. Also, the underlying BK boney anatomy prevents rotation. The AK limb is comprised mostly of soft tissue, therefore, until now; all socket control has inadequately come from a variety of brim shapes and styles. The Volume Adjustable Full-Suspension Socket solves all of these issues for the AK amputee and allows them the same security and freedoms as their BK counterparts. 1. An above knee prosthetic socket that utilizes Velcro pressed against an inner gel or silicone liner for suspension and which eliminates the tendency for socket rotation.2. An above knee socket that creates the force necessary to keep the prosthesis suspended , via Velcro , by utilizing an adjustable sliding lateral wall.3. A lateral above knee socket wall that slides inside of the above knee socket and is attached anteriorly and posteriorly with any means necessary to adjust the lateral wall with the patient desired level of inward socket pressure.4. A above knee socket that achieves volume adjustments , accommodating the fluctuating fluid accumulations or reductions of the amputated residual limb , through the use of an adjustable lateral wall. This patent covers a volume adjustable above knee socket utilizing a sliding lateral wall. This new approach to above knee prosthetic socket design does address the patient problem of residual limb volume loss or gain, but it, also, provides an improved suspension technique and eliminates the chronic above knee prosthetic socket issue of prosthetic rotation.Formally, above knee sockets have been suspended distally or through suction. Both of ...

PROSTHETIC FOOT WITH ENHANCED STABILITY AND ELASTIC ENERGY RETURN

A prosthetic foot comprises an attachment member and two or more flexible members. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The two or more flexible members can be rotatably attached to the attachment member by rotatable joints such that the flexible members can both rotate and flex relative to the attachment member when the prosthetic foot contacts the ground. 141-. (canceled)42. A prosthetic foot comprising:an attachment member comprising a connector configured to connect the attachment member to a user or another prosthetic device; andtwo or more flexible members directly attached to each other along a foot portion of the prosthetic foot and separately connected to the attachment member by independent rotatable connections such that both rotation of the flexible members relative to the attachment member and flexion of the flexible members' shape can be caused by contact between the prosthetic foot and the ground, independent of other forces, wherein at least one of the flexible members extends rearwardly from a proximal end and then forwardly to the distal end of the foot member.43. The prosthetic foot of claim 42 , wherein at least one of the flexible members connects to the attachment member via an actuator.44. The prosthetic foot of claim 43 , wherein the actuator is a powered actuator.45. The prosthetic foot of claim 44 , wherein the powered actuator is configured to power motion of at least one of the two or more flexible members.46. The prosthetic foot of claim 43 , wherein the actuator is a passive actuator.47. The prosthetic foot of claim 42 , further comprising a third flexible member claim 42 , the third flexible member disposed beneath the two or more flexible members claim 42 , and generally extending from a heel end to a toe end of the prosthetic foot.48. The prosthetic foot of claim 42 , wherein the two or more flexible members define a rearward facing gap ...

Method and apparatus for controlling balance

A method and apparatus for helping a user walk may verify whether the user is in a standing state and calculate a torque that controls balance of the user, and an assistance force for controlling balance may be provided for the user based on the torque generated by an actuator.

HYBRID TERRAIN-ADAPTIVE LOWER-EXTREMITY SYSTEMS

Hybrid terrain-adaptive lower-extremity apparatus and methods that perform in a variety of different situations by detecting the terrain that is being traversed, and adapting to the detected terrain. In some embodiments, the ability to control the apparatus for each of these situations builds upon five basic capabilities: (1) determining the activity being performed; (2) dynamically controlling the characteristics of the apparatus based on the activity that is being performed; (3) dynamically driving the apparatus based on the activity that is being performed; (4) determining terrain texture irregularities (e.g., how sticky is the terrain, how slippery is the terrain, is the terrain coarse or smooth, does the terrain have any obstructions, such, as rocks) and (5) a mechanical design of the apparatus that can respond to the dynamic control and dynamic drive. 149-. (canceled)50. A linear actuator comprising:a rotary motor comprising a motor shaft output, wherein a pulley is coupled to the motor shaft output; anda ball-screw transmission assembly comprising a threaded shaft coupled to the motor shaft output by a belt connected between the pulley and the threaded shaft of the ball-screw transmission assembly, wherein the ball-screw transmission assembly translates rotational motion of the motor shaft output to a linear motion of a nut portion of the ball-screw transmission assembly.51. The linear actuator of claim 50 , wherein the linear actuator is a component of a prosthetic claim 50 , orthotic claim 50 , or exoskeleton.52. The linear actuator of claim 51 , further comprising a radial and thrust bearing supporting the threaded shaft and allowing it to rotate while supporting tension in the belt due to a torque in the motor and a thrust force of the screw.53. The linear actuator of claim 52 , wherein the threaded shaft is coupled to the motor shaft output by a plurality of belts connected between the pulley and the threaded shaft.54. The linear actuator of claim 52 , ...

PROSTHESIS

The invention relates to a prosthesis to replace a missing extremity of a living being, which has: one or more prosthetic links driven by actuators, first sensors, which sense a current state ZUS(t) of the prosthesis; an interface to second sensors, which sense biosignals SIG(t) of the living being to control the missing extremity; third sensors for sensing data D(t), which describe a current environment of the prosthesis; a prediction unit, which determines, based on the biosignals SIG(t) and on the state ZUS(t) of the prosthesis and of the data D(t), a model MA(t) of an action A to be executed with the prosthesis and predicts motions Beweg(M(t)), dependent on the model M(t), of the prosthetic links for a period of time [t, t+Δt]; an evaluating unit, by which the discrete decision E to replace the action A with another action A′(E) can be determined on the basis of an evaluation of the biosignals SIGBIO(t), of the state ZUS(t), of the data D(t), and of the predicted motions B(M(t)) in accordance with a specified evaluation scheme, wherein the action A′(E) can define a reflexive motion and/or protective motion of the prosthesis that is autonomously controlled in an open-loop/closed-loop manner, and wherein, if the action A′(E) does not define such a reflexive motion and/or protective motion of the prosthesis that is autonomously controlled in an open-loop/closed-loop manner, the prediction unit determines a model M(t) of the action A′ to be performed by the prosthesis and predicts motions B(M(t)), dependent on the model M(t), of the prosthetic links for a time period [t, t+Δt]; and a control unit, which derives control signals Sig(t), based on the currently valid, predicted motions B(M(t)) or B(M(t)) or based on the reflexive and/or protective motion autonomously controlled in an open-loop/closed-loop manner, for controlling the actuators and controls/regulates the actuators based on the control signals Sig(t). 1. A prosthesis to replace a missing extremity of a ...

Enveloping body

An enveloping body for at least partly enveloping a limb, comprising an enclosed volume and a connection for supplying fluid to the volume and discharging it from the volume, wherein the enveloping body defines an inner circumference and an outer circumference, wherein the inner circumference of the enveloping body increases as the pressure of the volume increases.

REACTIVE LAYER CONTROL SYSTEM FOR PROSTHETIC AND ORTHOTIC DEVICES

A variable gain impedance controller for use in a control system for controlling a motorized prosthetic or orthotic apparatus provided with a joint. The controller comprises a sensor input for receiving a signal indicative of an interaction between the apparatus and the ground, a torque sensor input for receiving a signal indicative of the torque at the joint, and a variable gain scheduler in communication with the sensor input to receive data therefrom thereby providing a variable torque gain. The variable gain impedance controller adjusts its control on the apparatus based on the variable torque gain and the indicated torque to increase the joint resistance to motion when the signal received from the sensor input indicates an interaction between the apparatus and the ground, and decrease the joint resistance to motion when the signal received from the sensor input indicates an absence of interaction between the apparatus and the ground. 184-. (canceled)85. A method of modifying the feedback of an impedance controller for use in a control system for controlling a motorized prosthetic or orthotic apparatus provided with a joint , the method comprising:receiving a signal indicative of an interaction between the apparatus and the ground;receiving a signal indicative of the torque at the joint; andbased at least in part on the signal indicative of an interaction between the apparatus and the ground, calculating a result by multiplying the signal indicative of the torque by a value and providing the result to the controller.86. The method of claim 85 , wherein the value is a positive value and substantially unitary when the signal indicative of the interaction between the apparatus and the ground indicates an interaction and the value is a negative value and substantially unitary when the signal indicative of the interaction between the apparatus and the ground indicates an absence of interaction.87. The method of claim 85 , further comprising:receiving a signal ...

Driving module and motion assistance apparatus including the same

A driving module may include a driving source configured to generate power, a gear train that includes a decelerating gear set configured to receive driving power from the driving source and a ring gear attached to one side of the gear train, and a rotary joint that includes at least one planetary gear configured to rotate in response to power received from an output end of the decelerating gear set and to revolve along the ring gear. The driving module may include one or more noise reducing members configured to mitigate noise produced based on interaction between one or more elements of the driving module. The driving module may be included in a motion assistance apparatus, where the driving module drives a module that supports a portion of a user body.

Anatomically Aligned Prosthetic Ankle

The present disclosure relates to an anatomically aligned prosthetic ankle with a passive assist and associated methods. The prosthetic ankle includes a talus movably coupled to a tibia section by a connector about which the talus is pivotal such so during locomotion by a user of the prosthetic ankle. The passive to assist provides a selected dorsi-flexion force to aid in the push-off or pre-swing phases of gait for the user. 1. A prosthetic ankle comprising:a tibia section;a talus coupled to the tibia section;a connector rotatably coupling the talus to the tibia section such that the talus is positioned at an off-set alignment with respect to a transverse plane and with respect to a coronal plane;a dorsi-flexion tendon linkage coupled to the tibia section and to the talus, the dorsi-flexion tendon linkage positioned to provide a passive assist force; anda foot connected to the talus, the offset alignment of the talus being selected so as to define a transverse ankle joint axis and a coronal ankle joint axis that substantially match an existing ankle joint alignment of a user when positioned thereon.2. The prosthetic ankle of claim 1 , wherein the connector comprises a pin extending through spaced projections of the tibia section and through the talus so as to enable the talus to be pivoted with respect to the tibia section.3. The prosthetic ankle of claim 1 , wherein the coronal joint axis defined by the talus is offset from the coronal plane by approximately 5-12°.4. The prosthetic ankle of claim 3 , wherein the transverse ankle joint axis defined by the talus is offset from the transverse plane at an angle of approximately 5-12°.5. The prosthetic ankle of claim 1 , wherein a coronal joint axis defined by the talus is aligned at an angle of approximately 8° from a vertical tibia midline of the user claim 1 , and wherein the transverse ankle joint axis is offset at an angle of approximately 8° from a knee axis of the user.6. The prosthetic ankle of claim 1 , ...

Articulation with controllable stiffness and force-measuring device

The subject matter of the invention is an articulation ( 1 ) with controllable stiffness and a force-measuring system, comprising a first device ( 20 ) that comprises a frame ( 4 ) having a curved face and connected to a first motor element ( 2 ), the first device ( 20 ) regulating the position of the articulation ( 1 ), and a second device ( 22 ) that regulates the stiffness of the articulation ( 1 ) and comprises a thrust element ( 15 ), the movement (D) of which determines the pre-compression of a resistive element ( 11 ) and thus the stiffness of the articulation ( 1 ); the first motor element ( 2 ) causes the frame ( 4 ) to rotate such that a wheel ( 8 ) of the second device ( 22 ) rolls on the curved face of the frame ( 4 ), causing the resistive element ( 11 ) to be compressed (C) via a transmission rod ( 7 ) associated with said wheel ( 8 ) and with the resistive element ( 11 ).

PROSTHESIS AND ORTHOSIS SLIP DETECTION SENSOR AND METHOD OF USE

A device and method for measuring prosthetic or orthotic slip is presented. An optical sensor device is attached to the prosthesis or orthosis and measures the amount of relative motion between the prosthetic socket and the residual limb surface or between the orthosis and the affected body part. The sensor device is comprised of an optical sensor, a light source, a processing unit and a power source contained within a housing. A system for measuring multidirectional prosthetic or orthotic slip using the sensor device and automatically adjusting the fit of the prosthetic based on a determined threshold is also presented. 1. A device for measuring movement of an orthosis or movement inside a prosthetic socket comprising:an optoelectronic sensor;a processing unit electrically connected to the optoelectronic sensor;a power source electrically connected to the processing unit;a light source electrically connected to the power source; anda housing containing the processing unit and the power source.2. The device of claim 1 , further comprising an optical sensor port attached to the housing wherein the optical sensor is contained within the optical sensor port.3. The device of claim 1 , wherein the housing includes a cover and a base.4. The device of claim 3 , wherein the cover of the housing is removable.5. The device of claim 1 , wherein the power source is a battery.6. The device of claim 1 , wherein the light source is a light emitting diode (LED).7. A method of determining an amount of multidirectional socket slip between a prosthetic socket and residual limb surface of a subject comprising: an optoelectronic sensor;', 'a processing unit electrically connected to the optoelectronic sensor;', 'a power source electrically connected to the processing unit;', 'a light source connected to the power source; and', 'a housing containing the processing unit and the power source;, 'embedding at least one slip sensor device laterally within at least one socket wall of the ...

METHOD FOR CONTROLLING AN ARTIFICIAL KNEE JOINT

A method for controlling an artificial knee joint comprising an upper part and a lower part pivotally connected to each other, a resistance unit arranged between the upper part and the lower part and having an adjusting device to adjust the damping resistance, a control unit, the adjustment taking place on the basis of sensor data from at least one sensor. During the swing phase at least one of the knee angle (KA), the knee angle velocity (KAV), the knee angle acceleration (KAA), the lower limb angle, the lower limb velocity, the lower limb acceleration, the ankle moment (AM) and the axial force (AF) is sensed, the curve of the parameter is determined and the damping resistance is changed when, after an extreme value of the parameter is reached, the monotonic behavior of the curve of the parameter changes within the swing phase. 1. A method for controlling an artificial knee joint , the method comprising:providing an upper part and a lower part which are pivotally connected to each other about a pivot axis, a resistance unit which is arranged between the upper part and the lower part and which has an adjustment device to vary the damping resistance, a control unit which is coupled to the adjustment device and which is connected to at least one sensor, the adjustment being carried out using sensor data from the at least one sensor;capturing during a swing phase, at least one characteristic from a knee angle, a knee angle velocity, a knee angle acceleration, a below-knee angle, a below-knee velocity, a below-knee acceleration, an ankle moment, and an axial load;determining a profile of the characteristic;varying the damping resistance if, after reaching an extremum of the characteristic, a monotonic behavior of the profile of the characteristic changes within the swing phase.2. The method as claimed in claim 1 , wherein the damping resistance is increased.3. The method as claimed in claim 2 , wherein the damping resistance is increased to a level of the stance phase ...

METHOD FOR CONTROLLING AN ARTIFICIAL KNEE JOINT

A method for controlling a damping change in an artificial knee joint of an orthosis or prosthesis, wherein the artificial knee joint has an upper part, a lower part mounted thereon such that it can pivot about a pivot axis, and a resistance unit which is secured on the upper part on an upper articulation point and on the lower part on a lower articulation point in order to provide a resistance to a bending or extending of the artificial knee joint, wherein an adjusting device is assigned to the resistance unit for changing the flexion resistance, wherein the resistance of the resistance unit is increased by an increasing knee angle starting from a knee angle threshold value. 1. A method for controlling a change in damping in an artificial knee joint of an orthosis or prosthesis , the method comprising;providing an artificial knee joint having an upper part, a lower part which is mounted on said upper part pivotably about a pivot axis, and a resistance unit which is fastened to the upper part at an upper articulation point and to the lower part at a lower articulation point to provide a resistance to a flexion or extension of the artificial knee joint, the resistance unit being assigned an adjustment device to change the flexion resistance;increasing the resistance with the resistance unit with an increasing knee angle above a knee angle threshold value.2. The method as claimed in claim 1 , wherein the resistance of the resistance unit is increased linearly claim 1 , progressively or degressively with increasing knee angle.3. The method as claimed in claim 1 , wherein the knee angle at which the spacing of the connecting line between the upper articulation point and the lower articulation point to the pivot axis is at a maximum is set as a knee angle threshold value claim 1 , above which a change in the resistance of the resistance unit is increased.4. The method as claimed in claim 1 , wherein the resistance unit has a hydraulic or pneumatic damper with at least ...

Hydraulic prosthetic ankle

A range of motion (ROM) prosthetic foot and passive dampening ankle joint have limited dorsiflexion-plantarflexion (up and down) pivoting to accommodate different environments, and a spring to provide resilient resistance to plantarflexion (or lowering of the toe), and to bias the foot in dorsiflexion (or raising the toe). The ankle joint has a rear pivot rearward of a hydraulic link for a smooth feel. The ankle joint has an internal bumper in a hydraulic cylinder for a smooth feel. The ankle joint has an internal hydraulic compensator disposed in the cylinder and carried by the piston to equalize volume.

Supporting module and motion assistance apparatus including the same

A supporting module and a motion assistance apparatus including the same, the supporting module including a supporting frame including a sliding guide, a sliding joint configured to slide along the sliding guide, and an elastic module provided in the supporting frame, and configured to provide an elastic force to the sliding joint, are provided.

A prosthetic ankle and foot combination

A prosthetic ankle and foot combination has an ankle joint mechanism constructed to allow damped rotational movement of a foot component relative to a shin component. The mechanism provides a continuous hydraulically damped range of ankle motion during walking with dynamically variable damping resistances, and with independent variation of damping resistances in the plantar-flexion and dorsi-flexion directions. An electronic control system coupled to the ankle joint mechanism includes at least one sensor for generating signals indicative of a kinetic or kinematic parameter of locomotion, the mechanism and the control system being arranged such that the damping resistances effective over the range of motion of the ankle are adapted automatically in response to such signals. Single and dual piston hydraulic damping arrangements are disclosed, including arrangements allowing independent heel-height adjustment.

Prosthetic Partial Fingers

Various embodiments of the present invention generally relate to prosthetic partial finger designs that can mimic the last two joints of the finger. Some embodiments include a proximal phalange, a distal phalange coupled to the proximal phalange, and a knuckle track (e.g., formed in an arc). The knuckle track can be moveably coupled to the proximal phalange an may include multiple teeth formed on which the proximal phalange slides along. A ratcheting mechanism can contact the multiple teeth to allow sliding in only a first direction while the ratcheting mechanism is engaged. Some embodiments include a release mechanism (e.g., a button) configured to disengage the ratcheting mechanism from the multiple teeth to allow the distal phalange to slide in a second direction. In some embodiments, the device may include a spring-back capability that automatically extends the finger after reaching full finger flexion, enabling one-handed use.

PROSTHETIC OR EXOSKELETON COMPONENT, PROSTHESIS OR EXOSKELETON, AND METHOD

A prosthetic or exoskeleton component for a prosthesis or exoskeleton includes a shock-absorbing unit. The shock-absorbing unit contains a damping device that can be controlled by way of a control device. A detection device has a sensor unit for receiving a signal. The detection device is configured to detect uneven ground depending on the acquired signal and to control the damping device in response to the detected uneven ground such that a damping property of the damping device can be adjusted on the basis of a signal of the detection device. 119-. (canceled)20. A prosthesis or exoskeleton component for a prosthesis or an exoskeleton , the component comprising:a shock absorber device with a damper device that is controllable by way of a control device;an identification device with a sensor unit that includes a reception unit for contactless acquisition of a signal influenced by an area of uneven ground;wherein said identification device is configured to identify the area of uneven ground in dependence on the captured signal and to control said damper device in dependence on the identified area of uneven ground so that a damping property of said damper device is adjusted by a signal of said identification device.21. The prosthesis or exoskeleton component according to claim 20 , wherein said sensor unit comprises a transmission unit for emitting a signal and wherein said reception unit is configured to capture at least one reflection of the emitted signal claim 20 , originating from the area of uneven ground claim 20 , as a signal.22. The prosthesis or exoskeleton component according to claim 20 , wherein said damper device comprises at least one first damper chamber claim 20 , at least one second damper chamber claim 20 , and at least one controllable damping valve coupling said first and second damper chambers to one another claim 20 , and wherein a field generating device that is controllable by said identification device is assigned to said damping valve claim ...

POWERED AND PASSIVE ASSISTIVE DEVICE AND RELATED METHODS

Systems and methods for assistive devices for replacing or augmenting the limb of an individual, such devices comprising a joint and a powered system; the powered system having a first configuration in which the powered system rotates the joint by applying power to the joint, and a second configuration that allows for rotation of the joint without actuation of the powered system. 1. An assistive device for replacing or augmenting the limb of an individual , comprising a joint and an actuator linkage , the actuator linkage having a link portion that is movable to a first position coaxial to the joint or to a second position at a distance from the joint , the actuator linkage applying a torque to the joint when the link portion is positioned at the second position.2. The assistive device of claim 1 , wherein the actuator linkage applies the torque to the joint through the link portion.3. The assistive device of claim 1 , further comprising an adjustable linkage extending from the joint to a predetermined end position; the link portion being movable along the adjustable linkage between the first position and the second position.4. The assistive device of claim 1 , the actuator linkage comprising a linear actuator.5. The assistive device of claim 4 , the joint being flexible without actuation of the linear actuator when the link portion is in the first position.6. The assistive device of claim 4 , the joint being extendable without actuation of the linear actuator when the link portion is in the first position.7. The assistive device of claim 4 , the joint being flexible and extendable without actuation of the linear actuator when the link portion is in the first position.8. The assistive device of claim 1 , wherein the second position is a predetermined position.9. The assistive device of claim 8 , wherein the link portion is movable to a plurality of positions between the first position and the second position.10. The assistive device of claim 4 , further comprising a ...

ARTIFICIAL HAND WITH EXTENDABLE DIGITS

An artificial hand suitable for use in humans and robots, includes at least one finger member and at least one thumb member, which is actuated by bending the at least one joint by the motor unit; said finger member comprising one proximal and one middle phalanx consisting of two subparts each, said thumb member comprising one proximal and one middle phalanx consisting of two subparts each, and said two-piece proximal and middle phalanges comprise at least one connection means in grooves extending longitudinally therein, increasing lengths of said proximal and middle phalanges by enabling the two pieces to be set apart from each other. 1. An artificial hand suitable for use in humans and robots , comprising: at least one finger member actuatable via bending of at least one joint and at least one thumb member actuatable via bending of at least one joint wherein:said at least one finger member comprising one proximal phalanx part and one middle phalanx part, each comprising two subparts,said at least one thumb member comprising one proximal phalanx part and one middle phalanx part, each comprising two subparts, and;said proximal phalanx part and said middle phalanx part each comprise at least one connection means, and each of said two subparts comprise longitudinally extending grooves in which said at least one connection means is housed to maintain respective structural integrity between the two subparts of each of said proximal phalanx part and said middle phalanx part, wherein said proximal phalanx part and said middle phalanx part are elongatable via replacement of said connection means with longer equivalents, setting apart said two subparts of said proximal phalanx part and said middle phalanx part whilst maintaining the respective structural integrity.2. The artificial hand as set forth in claim 1 , further comprising a motor claim 1 , said at least one finger member and said at least one thumb member actuatable by said motor.3. The artificial hand as set forth ...

Microprocessor controlled prosthetic ankle system for footwear and terrain adaptation

A prosthetic ankle includes a pair of prosthetic members movably coupled together to allow movement of the pair of prosthetic members with respect to one another. A hydraulic actuator or damper including hydraulic fluid in a hydraulic chamber is coupled to one of the pair of prosthetic members. A hydraulic piston is movably disposed in the hydraulic chamber and coupled to another of the pair of prosthetic members. A hydraulic flow channel is fluidly coupled between opposite sides of the chamber to allow hydraulic fluid to move between the opposite sides of the chamber as the hydraulic piston moves therein. A voice coil valve is coupled to the hydraulic flow channel to vary resistance to flow of hydraulic fluid through the flow channel, and thus movement of the piston in the chamber, and thus influencing a rate of movement of the pair of prosthetic members with respect to one another.

A system and a method for adjusting a prosthetic limb

A hydraulic system for adjusting a prosthetic limb. The hydraulic system may include an expandable pad mounted onto an interior surface of a socket of the prosthetic limb. The hydraulic system may further include a hydraulic cylinder and a plunger mechanism. The hydraulic cylinder may be filled with a hydraulic oil. The hydraulic system may be configured to expand the expandable pad by pumping the hydraulic oil from the hydraulic cylinder into the expandable pad responsive to a volume decrease of the residual limb being more than a threshold.

Prosthetic foot with enhanced stability and elastic energy return

A prosthetic foot comprises an attachment member and two or more flexible members. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The two or more flexible members can be rotatably attached to the attachment member by rotatable joints such that the flexible members can both rotate and flex relative to the attachment member when the prosthetic foot contacts the ground.

JOINT ASSEMBLY AND MOTION ASSISTANCE APPARATUS INCLUDING THE SAME

A joint assembly may include a first rolling cam that includes a first cam portion, and a first extension extending from the first cam portion, and a second rolling cam that includes a second cam portion to be in contact with the first cam portion, and a second extension extending from the second cam portion. 1. A joint assembly , comprising:a first rolling cam including a first cam portion, and a first extension, the first extension extending from the first cam portion; anda second rolling cam including a second cam portion and a second extension, the second cam portion configured to contact the first cam portion, and the second extension extending from the second cam portion.2. The joint assembly of claim 1 , whereinthe first cam portion has a shape symmetrical in a lateral direction with respect to a first virtual center line, andthe second cam portion has a shape symmetrical in a lateral direction with respect to a second virtual center line.4. The joint assembly of claim 1 , wherein a width of the first extension decreases in a direction away from the first cam portion.5. The joint assembly of claim 4 , wherein the first rolling cam further comprises:a rotary member associated with the first extension, the rotary member configured to rotate.6. The joint assembly of claim 5 , wherein the rotary member is exposed outside of the first extension.7. The joint assembly of claim 1 , further comprising:a rolling cam guide configured to cover at least a portion of a side of the first rolling cam and at least a portion of a side of the second rolling cam.8. The joint assembly of claim 1 , further comprising:a rolling cam guide including a fixed portion and a guide portion, the fixed portion configured to attach to a side of the first rolling cam, and the guide portion extending from the fixed portion and overlapping at least a portion of a side of the second rolling cam.9. The joint assembly of claim 1 , further comprising:a slip reducer between the first cam portion and ...

PROSTHETIC KNEE JOINT WITH BUFFERING AND BRAKING EFFECTS

A prosthetic knee joint with buffering and braking effects has an upper connecting base, a linking assembly, a braking assembly, and a lower connecting base. The upper connecting base has two extending lugs and an accommodating recess. The linking assembly has two linking arms respectively and pivotally connected to the upper connecting base. The braking assembly has a braking arm protruding into the accommodating recess of the upper connecting base and pivotally connected to the two extending lugs. The lower connecting base is connected to the linking assembly and the braking assembly. The upper connecting base, the linking assembly, the braking assembly and the lower connecting base form a four-bar linkage. A cushion between an abutter and a main body provides a buffering effect during walking. Thus, the prosthetic knee joint has simplified structure and reduced cost and is convenient in assembly and use. 1. A prosthetic knee joint with buffering and braking effects comprising: two extending lugs respectively formed on two sides of the upper connecting base and extending backward out of the upper connecting base; and', 'an accommodating recess longitudinally formed through the upper connecting base and disposed between the two extending lugs;, 'an upper connecting base having'} 'two linking arms respectively disposed on outer sides of the extending lugs, and top ends of the two linking arms respectively and pivotally connected to the upper connecting base;', 'a linking assembly pivotally connected to the upper connecting base and having'} 'a braking arm, a top end of the braking arm protruding into the accommodating recess of the upper connecting base and pivotally connected to the two extending lugs; and', 'a braking assembly pivotally connected to the two extending lugs of the upper connecting base, disposed next to the linking assembly, and having'} [ two connecting protruding lugs formed on a top end of the main body and disposed apart from each other;', 'a ...

Prosthetic Partial Fingers

Various embodiments of the present invention generally relate to prosthetic partial finger designs that can mimic the last two joints of the finger. Some embodiments include a proximal phalange, a distal phalange coupled to the proximal phalange, and a knuckle track (e.g., formed in an arc). The knuckle track can be moveably coupled to the proximal phalange an may include multiple teeth formed on which the proximal phalange slides along. A ratcheting mechanism can contact the multiple teeth to allow sliding in only a first direction while the ratcheting mechanism is engaged. Some embodiments include a release mechanism (e.g., a button) configured to disengage the ratcheting mechanism from the multiple teeth to allow the distal phalange to slide in a second direction. In some embodiments, the device may include a spring-back capability that automatically extends the finger after reaching full finger flexion, enabling one-handed use.

ORTHOTIC OR PROSTHETIC CUSHIONED DEVICE AND METHOD OF MAKING THE SAME

Orthotic and prosthetic devices having integrated features such as cushioning features are described, as well as methods for computer aided designing and making of these devices. The orthotic or prosthetic devices comprise a cushioning layer superimposed onto an orthotic or prosthetic shell, the cushioning layer comprising an array () of discrete solid and resilient cushioning elements (). In one preferred embodiment, said cushioning structure is a beam, defined around a centerline of any arbitrary shape. In another preferred embodiment, said cushioning structure has the shape of a spiral. 120-. (canceled)21. An orthotic or prosthetic device comprising:a plurality of orthotic or prosthetic shells and a plurality of cushioning layers forming a sandwich structure,the plurality of cushioning layers comprising one or more cushioning elements that are homogenously formed with the plurality of orthotic or prosthetic shells, wherein at least one of the cushioning elements comprises a first side and a second side opposite the first side, wherein the first side is superimposed onto a first shell of the plurality of orthotic or prosthetic shells and wherein the second side is superimposed onto a second shell of the plurality of orthotic or prosthetic shells that is different from the first shell.22. The orthotic or prosthetic device of claim 21 , wherein the at least one of the cushioning elements comprises a beam.23. The orthotic or prosthetic device of claim 22 , wherein the beam is wider in a first direction than in a second direction.24. The orthotic or prosthetic device of claim 21 , wherein the one or more cushioning elements and said plurality of orthotic or prosthetic shells are formed from the same material.25. The orthotic or prosthetic device of claim 21 , wherein the at least one of the cushioning elements comprises a spiral.26. The orthotic or prosthetic device of claim 21 , wherein the at least one of the cushioning elements comprises a rectangular shape.27. The ...

PROSTHESIS FOR FEMORAL AMPUTEE

Hinged connecting device () for a prosthesis () for a femoral amputee, connecting the femoral part () and the tibial part () of same in a hinged manner, and moreover comprising a damping mechanism () intended to counter a predetermined resistance at least during bending of the prosthesis (), by replacing the muscle groups usually used for this purpose. The damping mechanism () is capable of being switched between a first operating mode (M), selected by default, in which the value of the resistance corresponds to a first maximum value (Vmax), and a second operating mode (M), that can be actuated only in a hyperextension position (P) of the prosthesis (), in which the resistance value corresponds to a second minimum value (Vmin); and the hinged connecting device () moreover comprises a fully mechanical locking system (), arranged in order to allow the second operating mode (M) to be activated only when the inclination of the tibial part () exceeds a first predetermined oriented angle (X) relative to the vertical. 2. Hinged connecting device according to claim 1 , said first predetermined oriented angle being greater than or equal to 0 in the direction of walking (S).3. Hinged connecting device according to claim 1 , wherein said locking system is incorporated in a piston acting as said damping mechanism.4. Hinged connecting device according to claim 3 , said locking system comprising a modified pendulum of a modified switching system claim 3 , adapted to co-operate alternatively with a counterweight in the first operating mode claim 3 , and with a valve of the piston in the second operating mode.5. Hinged connecting device according to claim 4 , wherein the modified pendulum is configured in such a way that the resistance of the damping device is locked in the first operating mode as long as an inclination of an axis of the piston does not exceed a second predetermined oriented angle with respect to the vertical direction derived directly from said first predetermined ...

METHOD FOR CONTROLLING AN ORTHOPEDIC JOINT

A method for controlling an orthopedic joint of a lower extremity in at least one degree of freedom by means of an adjustable actuator for adjusting an orthopedic apparatus to walking situations that differ from walking on a plane. The orthopedic apparatus comprises top connecting members to connect to a limb, and an orthopedic element that is hingedly arranged distal to the connecting members. The method includes sensing, with sensors, several parameters of the orthopedic apparatus; comparing the sensed parameters with criteria that have been established based on several parameters and/or parameter curves and are stored in a computer unit; selecting a criterion that is suitable on the basis of the determined parameters and/or parameter curves; and adjusting resistances to movements, extents of movements, driving forces, and/or the progresses thereof in accordance with the selected criterion in order to control special functions that differ from walking on a plane. 126-. (canceled)27. A method for controlling a passive prosthetic knee joint , the method comprising:providing a prosthesis having the passive prosthetic knee joint, an upper attachment member configured to attach to a limb, a lower attachment member pivotally attached to the upper attachment member, an actuator, a computer unit, and a plurality of sensors;detecting parameters of the prosthesis with the plurality of sensors, the parameters including at least an absolute angle of the lower attachment member relative to a vertical axis, a rate of change of the absolute angle, a torque force in the knee joint, and a rate of change of the torque force;comparing the detected parameters with criteria stored in the computer unit;selecting multiple criterion based on the comparing;automatically adjusting, with the actuator, at least one of a damping force or a damping profile for the knee joint in accordance with the selected criterion, to adapt to special functions that deviate from walking on a planar surface. ...

IMPEDANCE SIMULATING MOTION CONTROLLER FOR ORTHOTIC AND PROSTHETIC APPLICATIONS

An impedance simulating motion controller for orthotic and prosthetic devices includes an equilibrium trajectory generator that receives locomotion data regarding the locomotion of a user, a dynamic trajectory compensator that generates one or more control parameters based on the locomotion data and one or more physiological characteristics of the user, and a dynamic gain tuner that adjusts the one or more control parameters based on a gain scaling factor that is calculated using a measured deflection point and an expected deflection point. The adjusted control parameters are used to control movement of an actuator of an orthotic or prosthetic device. 1. A non-transitory computer-readable medium comprising executable instructions that when executed by one or more processors cause the one or more processors to:determine a joint angle of a joint of a motorized POD during a gait cycle;determine one or more control signals that control a stiffness of one or more actuators of the motorized POD based at least in part on a difference of the determined joint angle from an equilibrium joint angle during stance phase of the gait cycle, wherein the equilibrium joint angle is approximately constant during at least a majority of the stance phase; andcause the one or more control signals to be communicated to the one or more actuators to control the stiffness of the one or more actuators.2. The non-transitory computer-readable medium of claim 1 , wherein the equilibrium joint angle is determined using a regression line of torque-angle during stance phase of a gait cycle.3. The non-transitory computer-readable medium of claim 1 , wherein the one or more control signals are based at least in part on at least a position set-point claim 1 , a proportional gain claim 1 , and a derivative gain.4. The non-transitory computer-readable medium of claim 1 , wherein the one or more control signals are determined based at least in part on at least one of body mass or weight.5. The non- ...

Post-Operative Support Apparatus for a Patient's Residual Limb

A post-operative support apparatus for a patient's transfemoral residual limb, includes: a planar, stretchable, tensionable and flexible wrap panel sized to wrap around an outer circumference of a patient's transfemoral residual limb, where the wrap panel includes first fastener(s) for maintaining the wrap panel in place around the patient's residual limb; a planar, stretchable, tensionable and flexible hip-band sized to wrap around an outer circumference of a patient's hip or waist, where the hip-band includes second fastener(s) for maintaining the hip-band in place around the patient's hip or waist; and third fastener(s) releasably fastening the wrap panel to the hip-band. 1. A post-operative support apparatus for a patient's transfemoral residual limb , comprising:a planar, stretchable, tensionable and flexible wrap panel sized to wrap around an outer circumference of a patient's transfemoral residual limb, the wrap panel including one or more first fasteners for maintaining the wrap panel in place around the patient's residual limb;a planar, stretchable, tensionable and flexible hip-band sized to wrap around an outer circumference of a patient's hip or waist, the hip-band including one or more second fasteners for maintaining the hip-band in place around the patient's hip or waist; andone or more third fasteners releasably fastening the wrap panel to the hip-band.2. The post-operative support apparatus of claim 1 , further comprising a planar claim 1 , stretchable claim 1 , tensionable and flexible distal panel including one or more fourth fasteners releasably fastening the distal panel to a distal end of the wrap panel and over the distal end of the patient's transfemoral residual limb.3. The post-operative support apparatus of claim 2 , further comprising a distal cushion between the distal panel and the distal end of the patient's residual limb.4. The post-operative support apparatus of claim 1 , wherein the wrap panel is formed from a perforated neoprene ...

PASSIVELY COOLED AND VOLUME ADJUSTABLE TRANSTIBIAL SOCKET

A transtibial socket for a prosthetic lower limb includes a mesh arranged between rigid struts. The mesh includes a plurality of support members and a plurality of tensile members, optionally in combination with spacer members arranged between different support members. At least one tensioning member coupled with the tensile member extends through of past guides in the struts to an adjustable tensioning apparatus that is configured to allow the mesh to be constricted radially by the amputee-user. The mesh allows for the heat dissipation and volume adjustment, while increasing contact area and force distribution around a residual limb. 1. A transtibial socket comprising:a mesh configured to receive a residual limb of an amputee-user, the mesh comprising a plurality of support members and a plurality of tensile members, wherein each support member of the plurality of support members includes a plurality of passages arranged in different directions, and each tensile member of the plurality of tensile members extends through passages of multiple support members of the plurality of support members;a plurality of struts comprising at least three struts positioned around an interior space configured to receive the mesh, and including a distal end configured to integrate with a lower leg shaft; andat least one tensioning member coupled with the plurality of tensile members and extending through or past guides defined in the plurality of struts to an adjustable tensioning apparatus, whereby manipulation of the adjustable tensioning apparatus is configured to selectively tension the at least one tensioning member to allow the mesh to be constricted radially by the amputee-user.2. The transtibial socket of claim 1 , further comprising a plurality of spacer members claim 1 , wherein each spacer member of the plurality of spacer members is arranged between a different pair of the support members of the plurality of support members.3. The transtibial socket of claim 1 , wherein ...

BIDIRECTIONAL BIOMECHANICAL PROSTHETIC FULL FINGER CONFIGURED FOR ABDUCTION AND ADDUCTION WITH MCP PIVOT

The disclosure provides apparatus and methods of use pertaining to a bidirectional biomechanical prosthetic finger assembly. In one embodiment, the assembly includes an eccentric metacarpophalangeal (MCP) pivot configured for swivelable attachment to a hand of a user, a distal coupler, and an articulation assembly rotatively coupled therebetween. A ring configured to receive a user's residual finger is disposed upon the articulation assembly, and may be adjusted to a target location based on a length of the residual finger. The articulation assembly is configured to utilize vertical movements of the residual finger within the ring to articulate the distal coupler within a plane parallel to an x-z plane, and the MCP pivot is configured to utilize lateral movements of the residual finger within the ring to articulate the distal coupler within a plane parallel to an x-y plane. Other embodiments are also disclosed. 140-. (canceled)41. A bidirectional biomechanical finger assembly for a user's residual finger , comprising:a metacarpophalangeal (MCP) pivot;a distal coupler; and an adjustable ring tendon having a distal end, a proximal end, and a longitudinal adjustment mechanism disposed therebetween, the proximal end rotatively coupled with the MCP pivot;', 'a ring configured to receive and retain the residual finger, the ring selectively disposed upon the adjustable ring tendon at a target location along the longitudinal adjustment mechanism;', 'a proximal coupler; and', 'a distal rocker, wherein the proximal coupler and the distal rocker are rotatively suspended between a proximal coordinated pivot point anchored upon the adjustable ring tendon and a distal coordinated pivot point anchored upon the distal coupler., 'an articulation assembly rotatively coupled between the MCP pivot and the distal coupler, the articulation assembly comprising42. The bidirectional biomechanical finger assembly of claim 41 , wherein the articulation assembly further comprises a proximal ...

ELECTROACTIVE POLYMERS AND SYSTEMS USING THE SAME

In one aspect, novel robust electroactive polymers (EAPs) is described, which contract and expand at low voltages to provide for a shape-morphing system, e.g., a prosthetic liner, and potentially entire prosthetic socket, to contract and expand in strategic areas as needed to maintain a comfortable and good fit throughout the day. In some embodiments, as the residual limb changes, these novel robust EAPs can change dynamically as needed to maintain a comfortable, snug fit of the prosthetic liner or socket with the hard shell of the prosthetic socket device. In some embodiments, the EAPs used in prosthetic liners or sockets can also be used to detect pressure as the device is being used, and automatically adjust to maintain fit through a control unit, so that the patient does not even have to stop and adjust his or her device as he or she goes about an active day. 1. An electroactive polymer shape-morphing system comprising:a first electrode;a second electrode counter to the first electrode and spaced apart from the first electrode;an ionically conductive fluid; anda first actuator electrically connected to the first electrode and comprising a first electroactive ionic polymer, said electroactive polymer selected to expand or contract on application of an electrical potential, and said first actuator spaced apart from and in fluidic communication with the second electrode;wherein the first electroactive ionic polymer is selected from the group consisting of polymethacrylic acid, poly2-hydroxyethyl methacrylate, poly(vinyl alcohol), ionized poly(acrylamide), poly(acrylic acid), poly(acrylic acid)-co-(poly(acrylamide), poly(2-acrylamide-2-methyl-1-propane sulfonic acid), poly(methacrylic acid), poly(styrene sulfonic acid), quarternized poly(4-vinyl pyridinium chloride), poly(vinylbenzyltrimethyl ammonium chloride), sulfonated poly(styrene-b-ethylene-co-butylene-b-styrene), sulfonated poly(styrene), a cross-linked polymer thereof, and a combination thereof.2. The shape- ...

Disarticulated Compression Socket

A disarticulated compression socket configured to secure a residual limb. The disarticulated compression socket may include a rigid socket frame having one or more compression apertures each having one or more disarticulated compression inserts. Each disarticulated compression insert may be coupled with and/or responsive to a compression band configured to compress the disarticulated compression inserts and thereby secure a residual limb within the rigid socket frame. 165-. (canceled)66. A disarticulated compression socket comprising:a socket frame configured to secure a residual limb;a plurality of compression apertures on said socket frame;a disarticulated compression insert positioned within each of said compression apertures; andat least one compression band positioned in an interlaced configuration such that constriction of said at least one compression band causes the coordinated inward compression of said disarticulated compression inserts securing said residual limb within said socket frame.67. A disarticulated compression socket as described in and further comprising a plurality of release channels configured to accommodate soft tissue expansion of said residual limb when said disarticulated compression inserts are compressed to secure said residual limb within said socket frame.68. A disarticulated compression socket as described in wherein said release channels comprise release apertures.69. A disarticulated compression socket as described in wherein said compression socket as configured above allows a 5% reduction in the volume of the residual limb interface.70. A disarticulated compression socket as described in wherein said compression socket as configured above allows a greater than 5% reduction in the volume of the residual limb interface.71. A disarticulated compression socket as described in wherein said socket frame configured to secure a residual limb comprises a socket frame selected from the group consisting of: transfemoral socket frame; a ...

METHOD FOR CONTROLLING AN ARTIFICIAL ORTHOTIC OR PROSTHETIC KNEE JOINT

A method for controlling an artificial orthotic or prosthetic knee joint, on which a lower-leg component is arranged and with which a resistance device is associated, the bending resistance (R) of which resistance device is changed in dependence on sensor data that are determined by means of at least one sensor during the use of the orthotic or prosthetic knee joint, wherein a linear acceleration (a) of the lower-leg component is determined, the determined linear acceleration (a) is compared with at least one threshold value, and, if a threshold value of the linear acceleration (a) of the lower-leg component is reached, the bending resistance (R) is changed. 113-. (canceled)14. A method for controlling an artificial orthotic or prosthetic knee joint , the orthotic or prosthetic knee joint including a resistance device , the method comprising:providing at least one sensor and a below-knee component positioned on the orthotic or prosthetic knee joint;determining sensor data via the at least one sensor during use of the orthotic or prosthetic knee joint;changing a flexion resistance applied by the resistance device using the sensor data;determining a linear acceleration of the below-knee component with the sensor data;comparing the determined linear acceleration with at least one threshold value;changing the flexion resistance if the threshold value is reached;using the linear acceleration of the below-knee component at the sole level as a basis for the control.15. The method as claimed in claim 14 , further comprising determining an extended stride position of a prosthesis or orthosis having the artificial prosthetic or orthotic knee joint claim 14 , and reducing the flexion resistance when the extended stride position is present.16. The method as claimed in claim 14 , further comprising determining an absolute angle of the below-knee component in order to detect a terminal stance phase claim 14 , and reducing the flexion resistance if a predefined limit value for the ...

Methods and apparatuses for fitting an object

Linings for fitting an object to a body part, and their use, are provided. The lining may include a flexible sheet having a fluid impenetrable outer portion enclosing an internal volume and the lining may include barriers forming a number of compartments substantially secured in place within the internal volume. The barriers may be permeable to gas and/or liquid, yet may be impermeable to the conformable material and the gas and/or liquid may be supplied to or aspirated from one or more compartments within the internal volume. Aspiration of gas and/or liquid from the internal volume may limit both deformation of the conformable material and shape adjustment of the flexible sheet.

HYBRID TERRAIN- ADAPTIVE LOWER-EXTREMITY SYSTEMS

Hybrid terrain-adaptive lower-extremity apparatus and methods that perform in a variety of different situations by detecting the terrain that is being traversed, and adapting to the detected terrain. In some embodiments, the ability to control the apparatus for each of these situations builds upon five basic capabilities; (1) determining the activity being performed; (2) dynamically controlling the characteristics of the apparatus based on the activity that is being performed; (3) dynamically driving the apparatus based on the activity that is being performed; (4) determining terrain texture irregularities (e.g., how sticky is the terrain, how slippery is the terrain, is the terrain coarse or smooth, does the terrain have any obstructions, such as rocks) and (5) a mechanical design of the apparatus that can respond to the dynamic control and dynamic drive. 1. (canceled)2. A method applied by a lower-extremity prosthetic , orthotic , or exoskeleton apparatus worn by a wearer , the method comprising:generating a cost function configured to estimate at least one of intra-step transition work performed by a combination of the apparatus and the wearer on a center of mass of the combination, a biologic joint force, or a force rate; andcontrolling at least one of position, impedance or torque of at least one joint of the apparatus, the controlling comprising minimizing the cost function.3. The method of claim 2 , wherein the transition work is calculated as one claim 2 , or a combination of claim 2 , an absolute value of a negative transition work caused by a leading leg on the center of mass during a double support phase claim 2 , or the transition work caused by a combination of the leading leg and a trailing leg on the center of mass during the double support phase.4. The method of claim 3 , wherein the negative transition work is calculated based on a velocity of the center of mass and a ground reaction force (GRF) measured on a foot of the leading leg.5. The method of ...

PROSTHETIC KNEE

A prosthetic knee includes a housing, a chassis, and a brake member pivotally connected to the housing at a first location point and to the chassis at a second location point. A knee shaft extends through the brake member and is secured within a cavity defined by the housing. An extension assist system includes a biasing mechanism located inside of the chassis and an extension assist link. The extension assist link includes a body portion operatively connected to the biasing mechanism and a pair of arm portions situated in at least one slot defined by the knee shaft. The arm portions are pivotally connected to the knee shaft at a third location point located a distance from the first location point. 1. A prosthetic knee comprising:a housing;a chassis;a brake member pivotally connected to the housing at a first location point and to the chassis at a second location point;a knee shaft extending through the brake member and secured within a cavity defined by the housing; and a biasing mechanism located inside the chassis; and', 'an extension assist link including a body portion operatively connected to the biasing mechanism and a pair of arm portions situated in at least one slot defined by the knee shaft, the arm portions pivotally connected to the knee shaft at a third location point located a distance from the first location point., 'an extension assist system including2. The prosthetic device of claim 1 , further comprising a piston secured between and engaging the biasing mechanism and the extension assist link.3. The prosthetic device of claim 2 , wherein a lower surface of the extension assist link defines a convex portion that is complementary shaped to a concave recess defined by the upper surface of the piston for engagement therewith.4. The prosthetic knee of claim 2 , further comprising:an extension assist housing situated in the chassis and receiving the piston and the biasing mechanism, wherein the position of the extension assist housing within the ...