31 results about "Prosthetic feet" patented technology

Disclosed are prosthetic systems comprising a powered knee prosthesis and a volitional controller configured to provide control of the prosthesis to the user. The prosthetic system may be configured to enable a user to walk on smooth and / or uneven terrain and to ascend and / or descend stairs. The volitional controller may be configured in a contact state when the prosthesis is in contact with a ground surface and a no contact state when the prosthesis is lifted from the ground surface. When in the contact state, the controller may output a knee torque signal for controlling the powered knee of the prosthesis. The knee torque signal may be based on a target knee torque determined by the knee orientation and the torque measured at the ankle of a prosthetic foot. When in the no contact state, the controller may output a knee torque signal based on a desired knee position.

A prosthetic foot includes a base spring, a top spring assembly, a connector assembly, and a heel cushion. The top spring assembly includes first and second spring members, and first and second bond connections. The second spring member extends parallel with and spaced apart from the first spring member. The first bond connection is between distal ends of the first and second spring members, and the second bond connection is between a distal end of the second spring member and a top surface of the base spring. The top spring assembly has a first portion arranged horizontally, and a second portion arranged vertically. The connector is connected to a proximal end of the top spring assembly to connect the prosthetic foot to a lower limb prosthesis. The heel cushion is mounted to the base spring at a location spaced forward of a heel end of the base spring.

A traction system for a mobile support device, such as a prosthetic foot piece or a crutch, includes a chassis, a latch assembly, and a strap. The chassis is couplable to a distal end of the mobile support device to extend underneath a bottom side of the mobile support device and the latch assembly. The latch assembly includes a front catch and a rear catch, both of which are securable to a top side of the mobile support device, the front catch being closer to the distal end of the mobile support device than the rear catch, and a lever having a front end and a rear end, the front end being releasably latchable to the front catch, the rear end being releasably latchable to the rear catch when the lever is pivoted about the front end of the latch. The strap is secured to the lever and the chassis.

The invention relates to a prosthetic foot insert (10) having a. A proximal fastening device (20) for fastening the prosthetic foot insert (10) to a proximal part (2) or a patient, b. A holder (30) which is arranged distally with respect to the fastening device (20) and which is connected to the fastening device (20), and c. A main spring (40) which extends into a forefoot region (11) and is coupled to the holder (30), the retaining part (30) is mounted on the main spring (40) in a pivotable manner in a sagittal plane, a rear limiting element (92) is arranged between the main spring (40) and the retaining part (30), said rear limiting element limiting a displacement of the retaining part (30) away from the main spring (40), and the fastening device (20) is mounted on the retaining part (30) in an articulated and longitudinally displaceable manner.

A prosthetic foot includes a spring component and a sole component. The spring component comprises two or more stacked beam elements, each beam element including, along the length of the respective beam element, a first portion and a second portion, and the second portion of the beam element includes an extent with a length-varying width. The respective beam elements are fixed to each other and to the sole component proximate the heel portion of the sole component or the toe portion of the sole component at the first portions of the respective beam elements to form a fixed end of a cantilevered composite beam. The second portions of the respective beam elements are laterally movable with respect to each other when the spring component deflects.

The application provides a novel intelligent bionic hydraulic carbon fiber artificial foot, and relates to the field of artificial feet, which comprises a foot plate, a connecting seat, an ankle joint shell, a strain gauge and an electro-hydraulic damping cylinder. The electro-hydraulic damping cylinder comprises a cylinder body and a throttle valve assembly, and the throttle valve assembly comprises a telescopic rod, a throttle valve and a support rod which are connected with each other from top to bottom. The throttle valve comprises a valve body, a throttle valve sleeve is fixed to the bottom of the valve body along the axial direction of the cylinder body, a through hole is formed in the throttle valve sleeve along the axial direction of the cylinder body, a throttle valve core which can move up and down is inserted into the through hole, and a throttle port is formed in the side wall of the throttle valve sleeve. The coil magnet drives the throttle valve core to move in the through hole according to the electromagnetic force generated by the coil magnet, so as to change the size of the area of the throttle valve core blocking the throttle port. A displacement sensor is arranged on the valve body and is used for sensing the displacement of the throttle valve core relative to the valve body along the up and down movement of the through hole. A control device is arranged on the outer wall of the cylinder body and comprises an inertia sensor and a microprocessor. According to the artificial foot provided by the application, the structure is simple, and the corresponding optimal damping can be actively adjusted.

A mounting bracket for a prosthetic foot configured to attach to a residual limb, comprising an upper member, a lower member and compression torsion joint. The upper member comprises an upper flange, a mating post, and mounting portion configured to attach to the residual limb. The lower member comprises a mating portion, a lower flange, and a mounting portion configured to attach to the prosthetic foot. The compression torsion joint couples the upper member to the lower member and is configured to limit the vertical movement and torsional movement of the upper member with respect to the lower member.

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.

The utility model discloses a split type artificial foot of easy drainage in the technical field of artificial limb, the device has increased the inner bolster plate of artificial foot cover and carbon fiber, and the artificial foot cover can be tightly clamped with the inner bolster plate, forms integral force structure, and increases various different clamping structures in the artificial foot cover, makes the stable assembly of artificial foot cover and inner bolster plate, and the inner bolster plate of carbon fiber is sheet structure, has higher structural strength and small weight, is convenient for assembly, and the sheet arc structure still has deformation buffer action from taking, can effectively reduce the impact force of ground to leg, and the ring groove of drainage is arranged in the artificial foot cover, and the matched flow guide groove and drain hole, thereby can quickly drain the accumulated water of the accidental entry inside the artificial foot cover, effectively links and reduces the mildew and stink condition of the damp inside the artificial foot cover, and because of being equipped with the flow guide channel, can not disassemble the device, also can conveniently dry the inside space of artificial foot cover.

The present application belongs to the technical field of artificial artificial foot plate manufacturing and electronic technology, and relates to a bionic artificial foot plate design with self-powered motion monitoring, comprising an elastic foot plate, a sole reinforcing rib plate, a transducer, an energy management unit, an MCU microprocessor, and a receiving cavity connector. The elastic foot plate of the present application can reduce the impact force during the process of foot bottom touching by using elastic deformation, and at the same time, the energy recovery is released to push the human body forward in the late standing stage. The sole reinforcing rib plate is used to improve the stiffness of the elastic foot plate in the vertical direction, while the elastic foot plate deforms in the horizontal direction. The transducer converts the mechanical deformation part of the foot plate into electrical energy, and by analyzing and processing the output circuit and voltage of the transducer, the motion mode and motion state of the artificial foot plate can be detected. In addition, the recovered electrical energy can power electronic devices such as wireless communication modules, GPS, pedometers, etc., so as to obtain the motion trajectory of the artificial limb and other information, which can be wirelessly transmitted to smart devices such as mobile phones for display and analysis.

A prosthetic foot having a base spring having a toe end portion and a heel end portion, and a top spring assembly. The top spring assembly includes a first spring member having a distal end and a proximal end, a second spring member spaced apart from the first spring member along substantially an entire length of the first spring member, the second spring member having a distal end and a proximal end, a first bond connection provided between the distal ends of the first and second spring members, a second bond connection provided between the distal end of the second spring member and a top surface of the base spring in a forefoot portion of the base spring, and a spring connector extending through at least a first hole formed in the base spring, the second bond connection and the second spring member.

The invention relates to a prosthetic foot component comprising a proximal fastening system for securing the prosthetic foot component to a proximal component, a retaining portion situated distally relative to the fastening system and coupled to the latter, an elastic heel element provided on the retaining portion, and a main spring extending in a front-foot region and coupled to the retaining portion, wherein the main spring is mounted in the heel element between a proximal heel component and a distal heel component.

A prosthetic foot shell cover includes a stirrup, a top portion and an elastic rim. The prosthetic foot shell cover is for used with a prosthetic foot assembly including a foot shell (having heel, an arch and a back), a prosthetic foot and ankle, and a pylon operably attached to the foot shell. The stirrup is configured to go under the foot shell. The top portion is integrally connected to the stirrup and the top portion is configured to extend over the arch and around the back of the prosthetic foot. The elastic rim is integrally attached to the top portion and the elastic rim is configured to engage the pylon of the prosthetic foot. The stirrup, top portion and elastic rim are a unitary construction of resiliently deformable material. Two seals are required to achieve water resistance or water tightness, one at the foot shell and one at the pylon or ankle component.

The invention relates to a prosthetic foot insert (10) having a. proximal fixation means (20) for fixing the prosthetic foot insert (10) on a proximal component (2) or on a patient, b. a holder (30) arranged distally relative to the fixation means (20) and connected to the fixation means (20), and c. a main spring (40) which extends into a forefoot region (11) and is coupled with the holder (30), wherein the holder (30) is pivotably supported on the main spring (40) in a sagittal plane, wherein a rear limiting element (92) is arranged between the main spring (40) and the holder (30), which limits displacement of the holder (30) away from the main spring (40).

A prosthetic foot includes a cap, a retaining element and a plurality of blades. Each of the plurality of blades includes a proximal portion coupled with the cap, a middle portion coupled with the retaining element and a distal portion extending outwardly from the retaining element.

The application discloses a bendable lower leg extremely short residual limb prosthesis, which comprises an outer receiving cavity and an inner receiving cavity which are connected together, the outer receiving cavity is mainly in a U-shaped structure and the connecting point with the inner receiving cavity is close to the upper side of the inner receiving cavity, a connecting rod is fixedly installed at the lower part of the outer receiving cavity, a prosthetic foot is connected to the lower end of the connecting rod, a power assisting mechanism is arranged between the prosthetic foot and the connecting rod, the power assisting mechanism comprises a power assisting device and a driving piece for driving the power assisting device; the outer receiving cavity and the inner receiving cavity in the prosthesis are connected through a rotating connection mode, so that the prosthesis itself has a bending function, even if the residual limb personnel wears the knee joint in the inner receiving cavity, the bending function can be provided when walking or sitting, and thus the problem that the knee joint bending function is lost after the lower leg residual limb end wears the prosthesis is solved.

The application provides a prosthetic foot toe component with ground environment detection capability and a preparation method thereof, wherein the prosthetic foot toe component comprises: a bottom tactile sensing layer comprising a transparent elastomer containing microparticles, which is used for converting external force into spatial displacement of the microparticles; a shooting module mainly comprising a micro RGB camera and an LED lamp plate, the micro RGB camera is used for capturing the optical flow characteristics of the microparticles when the bottom tactile sensing layer is subjected to force, and converting the optical flow characteristics into an optical flow map, and the LED lamp plate is used for providing a uniform and sufficient illumination environment; an external connector connected to the base and used for connecting external devices; a transparent filling layer used for providing internal mechanical support; and a lightproof packaging layer wrapped outside and used for isolating external light and serving as an interface directly contacting the ground. The prosthetic foot toe component has a unique structure, can realize force sensing and ground environment detection based on the principle of the optical flow method, the preparation method is simple, and the prosthetic foot toe component has important value in the fields of ankle-foot prosthesis design and application.

The invention relates to a prosthetic foot component comprising a proximal fastening system for securing the prosthetic foot component to a proximal component, a retaining portion situated distally relative to the fastening system and coupled to the latter, an elastic heel element provided on the retaining portion, and a main spring extending in a front-foot region and coupled to the retaining portion, wherein the main spring is mounted in the heel element between a proximal heel component and a distal heel component.

A prosthetic foot can allow a user to engage in different activity levels, for example, walking and running using the same prosthetic foot. The prosthetic foot can have an elongate sole member, a first upper member, and a second pre-compressed upper member such that a distal end of the second upper member is biased toward the first upper member. A spacer between the distal ends of the first and second upper members can facilitate sliding of the distal end of the second upper member during ambulation to vary the stiffness of the foot. The spacer can also improve the lever arm length of the second upper member by maintaining a gap between the first and second upper members throughout ambulation.

Disclosed are prosthetic systems comprising a powered knee prosthesis and a volitional controller configured to provide control of the prosthesis to the user. The prosthetic system may be configured to enable a user to walk on smooth and / or uneven terrain and to ascend and / or descend stairs. The volitional controller may be configured in a contact state when the prosthesis is in contact with a ground surface and a no contact state when the prosthesis is lifted from the ground surface. When in the contact state, the controller may output a knee torque signal for controlling the powered knee of the prosthesis. The knee torque signal may be based on a target knee torque determined by the knee orientation and the torque measured at the ankle of a prosthetic foot. When in the no contact state, the controller may output a knee torque signal based on a desired knee position.

The utility model relates to the technical field of prostheses, and discloses a hydraulic heel-adjusting prosthetic foot plate which comprises a rocker arm and a prosthetic body, a hydraulic cylinder is rotatably mounted on the rocker arm, one end, far away from the rocker arm, of the hydraulic cylinder is rotatably mounted on the foot plate, an oil cavity communicated with the hydraulic cylinder is arranged in the rocker arm, and an adjusting button is arranged on the rocker arm. A connecting block is arranged at the top of the rocker arm, a butt-joint groove is formed in the connecting block, a butt-joint block matched with the butt-joint groove is arranged at the bottom of the artificial limb body in a protruding mode, and when the rocker arm is connected with the artificial limb body, the butt-joint block at the bottom of the artificial limb body can be inserted into the butt-joint groove in the connecting block. At the moment, sliding shafts on transmission sliding blocks can slide along arc-shaped guide grooves by rotating an annular rotating disc, and meanwhile, the multiple transmission sliding blocks can be synchronously close to one another and inserted into lock holes in a butt joint block by limiting the moving directions of the transmission sliding blocks through sliding holes, so that locking and fixing between the rocker arm and the artificial limb body are completed; otherwise, the disassembly can be realized.

A prosthetic foot that includes a foot plate having a toe portion and a heel portion, a shank plate bonded to the foot plate along a seam that extends from the toe portion rearward toward the heel portion to terminate at an end, the shank plate separated from the foot plate forming a gap between the foot plate and shank plate extending rearward from the end of the seam; and an attachment structure attaching the foot plate to the shank plate, wherein the attachment structure includes fibers extending continuously through the shank plate, the gap, and the foot plate. In embodiments, the foot plate and shank plate are made of composite material and the attachment structure alternately extends through the seam and through a flexible material between the shank plate and the foot plate.

The utility model provides a bionic foot sole of a robot, which comprises a rear foot sole, a front foot sole and a rear foot sole, the half sole is connected to the rear sole through a rotating assembly; the limiting assembly is arranged at the end, close to the front sole, of the rear sole and used for limiting the rotation amplitude between the front sole and the rear sole. The utility model solves the technical problem that the rotation amplitude of the front sole and the rear sole is too large in the advancing process of the existing bionic sole of the robot, so that a rotating component for connecting the front sole and the rear sole can bear stress exceeding the elastic limit under extreme conditions, and the rotating component is irreversibly deformed to fail.

Disclosed is a passive bionic ankle-foot prosthesis, comprising a lower leg connecting rod, a lower leg connector, a lower leg fixing tube, a sole fixing and connecting apparatus, a lower leg slider, a damper, an elastic element, a prosthetic foot plate, and an energy recovery apparatus. The lower leg connecting rod is hinged to the sole fixing and connecting apparatus to form a prosthetic ankle joint. The damper and the elastic element are connected in parallel. When the ankle joint rotates, the damper provides damping for adjusting the bending and extending speed of the ankle joint, and the elastic element provides support and pushing torque in the states of plantarflexion, dorsiflexion, and pushing. The prosthetic foot plate is used for reducing impact when the prosthesis contacts the ground, and the sole fixing and connecting apparatus is connected to the prosthetic foot plate. The energy recovery apparatus is used for converting part of the elastic deformation of the prosthetic foot plate and the elastic element into electric energy. The present invention can well mimic the biomechanical characteristics of the human ankle joint, providing flexibility and a natural feel during walking, thereby improving walking stability and efficiency.

A prosthetic foot may include a powered ankle joint. The prosthetic foot may include an attachment with multiple connection portions for connecting to a plurality of flexible foot members. The ankle may be powered by a motorized actuator, which may provide control of the ankle stiffness in parallel to the mechanical functions of the plurality of flexible foot members. The prosthetic foot may function with or without the actuator being powered.

1. Name of the product in this design: Prosthetic footplate. 2. Purpose of this design: This design is intended for use in leg prostheses. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to an artificial limb foot plate adopting a variable elastic force structure, belongs to the technical field of artificial limbs, and aims to solve the problems that an existing artificial limb foot plate is non-adjustable in elastic force and easy to loosen in connection and an internal trachea is easy to wear. The artificial limb foot plate comprises an artificial limb butt joint body, an upper foot plate and a lower foot plate, an air cushion is arranged between the upper foot plate and the lower foot plate, and the air cushion is inflated and deflated through a control assembly to adjust the internal pressure of the air cushion, so that the elasticity of the foot plate is changed. The control assembly comprises a miniature inflator pump, an air storage tank and an electric three-way valve and is connected with the air cushion through an air outlet pipe. An exhaust dustproof structure is arranged at the bottom of the upper foot plate, gas pushes the circular truncated cone blocking block to move downwards to achieve exhaust during exhaust, and the tension spring enables the circular truncated cone blocking block to reset to seal the circular truncated cone groove to prevent dust from entering when exhaust is not conducted. The mounting cylinder is connected with the fixed supporting cylinder through a fixing screw, and the artificial limb butt joint body and the mounting cylinder are fixed through a connecting sleeve and a connecting screw, so that disassembly and maintenance are facilitated.