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 prosthetic socket system includes a distal seal positionable between an interior surface of a prosthetic socket defining a pin bore and a distal end of a prosthetic liner carrying an attachment pin arranged to extend through the pin bore. The distal seal includes a base proximate to the attachment pin and defining an opening configured to receive and surround the attachment pin, a sealing portion extending distally from an outer radial portion of the base, and a variable clearance defined between the sealing portion and the base. The sealing portion is adapted to form a seal around the attachment pin and prevent fluid flow through the pin bore by deflecting relative to the base when the sealing portion engages the interior surface of the prosthetic socket.

A liner defines a pouch, an opening, a cup, and a first ring positioned on the pouch distal to the opening. The pouch is air-permeable and defines an internal volume for receiving a residual limb. The opening defined by the pouch provides access to the internal volume. The cup is air-impermeable and is positioned on the pouch distal to the opening. The liner is combined with an adapter for connecting a residual limb to a prosthetic limb. The adapter has a socket for receiving the cup, at least one hole positioned within the socket for drainage therefrom and sleeve extending from the socket and surrounding a central space. The adapter also has at least one vent positioned in the sleeve and overlies the air permeable material.

A suspension liner is adapted to provide an interface between a residual limb and a prosthetic socket. The suspension liner defines an interior surface and an exterior surface forming a liner profile between a closed distal end and an open proximal end. The suspension liner defines a liner body portion formed from an elastomeric material and at least one seal protruding circumferentially about and radially outward a distance from the liner profile, which is defined at areas outside the at least one seal. The at least one seal has a distal root extending from the liner profile, a distal section projecting from the distal root and terminating at a peak defined as the outermost portion of the at least one seal, and a proximal section extending from the peak to a proximal free end arranged for deflection relative to the liner profile.

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.

The present disclosure is directed to prosthetic limb sockets that couple prosthetic limbs to residual limbs. The sockets include a conical cup sized to engage and couple to the residual limb, and a base to secure the socket to the prosthetic limb. The sockets are direct heat-formable onto the residual limb, such that they can be heated and formed as they are secured to the residual limb.

A prosthetic socket casting cylinder and method for forming a prosthetic limb socket about a distal end portion of residual limb, while the residual limb is weight bearing, the prosthetic socket casting cylinder providing a height adjustable cylinder carrying an internal height adjustable distal interface socket, a pneumatic supply for pressurizing an internal chamber of the cylinder, plural weight sensors for sensing and determining downward pressure and weight exerted upon the cylinder, and a controller for vertically adjustably positioning the cylinder and distal interface, and to determine ratios of downward pressure/weight exerted upon the distal interface and cylinder.

Modular arm prosthesis, for amputations higher than the level of the forearm. With the feature of being modular, which gives us an advantage that reduces the repair time by replacing the module quickly. The Socket-stump module which can be adjusted to several stumps thanks to its pneumatic system for grip, decreases the level of customization of each prosthesis thus reducing the manufacturing time and cost of production of each prosthesis, as well as its easy control by means of myoelectric sensors.

A prosthetic system includes a prosthetic foot with a foot member defining a first end portion, a second end portion, and an intermediate portion defining a curvature and extending between the first and second end portions. A pump mechanism is coupled to the foot member. The pump mechanism includes a housing defining a cavity, and a membrane situated in the cavity. The pump mechanism is movable between an original configuration and an expanded configuration. A movable member includes a first portion coupled to the membrane and a second portion arranged to slidably engage the foot member. Relative movement between the first and second end portions moves the first portion of the movable member relative to the housing and slides the second portion along a length of the foot member to shift the pump mechanism between the original and expanded configurations.

The Prosthetic Vacuum Pump is a manually-operated device, that is affixed to or integral with a prosthetic socket. The manual operation allows a wearer to increase the vacuum in the socket cavity if there is any noticeable decrease at any time. The Prosthetic Vacuum Pump includes a removable pump mechanism that allows a user to customize the level of vacuum drawn by the Prosthetic Vacuum Pump. The intake valve of the Prosthetic Vacuum Pump is in direct connection with the cavity of a prosthetic socket. By eliminating vacuum lines, the vacuum pump creates an immediate vacuum in the cavity. The result is an immediate suspension when the prosthetic limb is put on without the need to walk or wait for the battery to draw a sufficient vacuum. The compact construction and optional depress-lock is easily hidden beneath clothing.