A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.

A device is provided to allow adaptation of a prosthetic or robotic foot in the medial-lateral direction, including pronation and supination of the foot using a series of articulations. Articulations are permitted in the disclosed device due to linkage systems positioned at various locations of the prosthetic foot. In particular, the device includes multiple connected linkage systems each including upper and lower portions with an articulating contact surface designed for load carriage and stability. The point of contact between the contact surfaces of each linkage system comprises the position-dependent instantaneous center of rotation of the upper portion with respect to the lower portion. The device also includes a platform coupled between the linkage systems and a base.

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.

A prosthetic foot structure includes a plate assembly having a toe portion and a heel portion. The plate assembly includes a first plate adjoining a second plate along a seam at which the first plate is bonded to the second plate. The seam has an end between the first and second plates, and the first plate is spaced from the second plate across a gap that reaches away from the end of the seam. An attachment structure attaches the first plate to second plate. The attachment structure has a composite composition including a resin material containing reinforcing fibers. The reinforcing fibers reach through the first plate, across the gap, and through the second plate.

A prosthetic foot cover device is described. The prosthetic foot cover may include a lattice framework formed to resemble a human foot. The lattice framework has a plurality of lattice cells to form the lattice framework. The prosthetic foot cover may have an inner cavity formed in the lattice framework which is sized and shaped to contain a prosthetic foot, and the inner cavity has an opening to receive the prosthetic foot. The prosthetic foot may have a foot pad that is an outer membrane layer and is joined with a portion of the lattice framework to support a portion of the lattice foot framework.

A prosthetic foot cover device with a pressure chamber is described. The prosthetic foot cover may include a lattice framework formed to replace a human foot. An open cavity may be formed in the lattice framework, which is sized and shaped to contain a prosthetic foot. A pressure chamber may be disposed in the lattice framework. A first one-way check valve is provided for the pressure chamber to allow air to be expelled from the pressure chamber and to generate a negative pressure within the pressure chamber as an amputee uses the prosthetic foot and the lattice framework. A remnant limb socket may be connected to the pressure chamber. A negative pressure may be developed in the remnant limb socket as air is pulled from the remnant limb socket into the pressure chamber. A method for additive manufacture of a prosthetic foot cover device is also described.

A system with a foot shell, which has a forefoot inner contour and a heel inner contour, at least two prosthetic feet, each with a forefoot region and a heel region, and at least two forefoot inserts that can be positioned at the forefoot region of at least one prosthetic foot, and/or at least two heel inserts that can be positioned at the heel region of at least one prosthesis region, wherein each prosthetic foot has an outer contour of the forefoot with at least one forefoot insert positioned at its forefoot region, which is adapted to the forefoot inner contour of the foot shell, and/or that each prosthetic foot with at least one heel insert positioned at its heel region has a heel outer contour which is adapted to the heel inner contour of the foot shell.

A prosthetic device is provided including (a) an ankle component, (b) a foot component coupled to the ankle component, wherein the foot component has a longitudinal length extending at least partially along a sagittal plane of a user when the prosthetic device is in use, wherein the foot component has a thickness extending at least partially along a transverse plane of a user when the prosthetic device is in use, and (c) a coupling mechanism positioned between the foot component and the ankle component, wherein the coupling mechanism couples a rotation of the foot component with respect to the sagittal plane to a rotation of the foot component with respect to the transverse plane.

A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.

Prosthetic feet that allow for heel height adjustment and/or provide metatarsal joint functionality to more closely mimic natural human feet are provided. A prosthetic foot can include an ankle module having a locking mechanism configured to lock the heel at a particular height. The prosthetic foot can also include a toe region that adapts to varying heel heights. The ankle module and/or locking mechanism can be adjusted, controlled, and/or locked via a hydraulic mechanism. The toe region can curve upward relative to a portion of the foot proximal of the toe region.