The foam insert is for use in manufacturing a prosthetic socket. The foam insert includes an elongated foam body extending from an open end to a closed end, and configured to be positioned within a rigid canister. The elongated foam body includes a contoured exterior surface configured to transfer pressure through to an interior surface thereof to produce consistent surface contact with a residual limb having casting material thereon. The interior surface of the elongated foam body includes a smooth interior surface configured to interface with the residual limb.

A knitted interface comprises a knitted structure formed from a plurality of elastomeric polymer filaments having a plurality of interstices permitting a transfer of air therethrough. The elastomeric polymer filaments may have a solid or hollow cross-section. The interstices vary in shape and size according to a knit density of the knitted structure upon movement or radial distension of the knitted interface. The elastomeric polymer filaments may be made from silicone.

A liner for an orthopedic or prosthetic device includes a core formed from a porous and compressible material, a first layer secured to the first side of the core and forming a first surface to the liner, and a second layer secured to the second side of the core and forming a second surface to the liner. The first and second layers may comprise different properties from one another and be formed from different materials including fabrics and polymeric materials. A polymeric film may be secured to the core or one of the layers to define at least part of a surface of the liner.

A shock absorbing liner or sock that has an opening, a closed liner distal end, and sidewalls. The distal end further comprises a distal region that is knitted with spacer fabric to the same circumference as the liner or sock or is configured to conform to specific areas of a foot; preferably, (1) the toe region leaving out the big toe region, (2) the metatarsal head (MTH) 1 region leaving out the MTHs 2-3 region and the MTHs 4-5 region, (3) the medial mid-foot region, (4) the lateral mid-foot region, and (5) the lateral heel region leaving out the medial heel region. The spacer fabric is preferred as a 2×2 knit outer wall with a 1×3 inner wall made using a number of knitting steps described herein but may be a multitude of configurations allowing for a continuous seamless shape in three dimensions.

A prosthetic socket system includes a prosthetic lock assembly having a lock body defining a pin hole adapted to receive an attachment pin, and a locking device in the lock body. The locking device is engageable with the attachment pin to unidirectionally lock the attachment pin in the lock body while permitting insertion of the attachment pin in the lock body. A valve assembly is positioned in the lock body that is movable between a closed position and an open position in which the valve assembly is unsealed so that air moves into the lock body via the valve assembly. A release mechanism positioned in the lock body is arranged to both release the locking device from the attachment pin and move the valve assembly to the open position by translating the locking device in the lock body.

A prosthetic cover for a prosthetic support element can include a substantially cylindrical hollow body with a first end and a second end and sized to fit around a support element of a prosthesis. A first flexible end seal and a second flexible end seal can each attach with the substantially cylindrical hollow body at the first and second ends, respectively, and connect the hollow body with the support element of the prosthesis by deforming about the support element when the prosthetic cover is installed around the support element.

A prosthesis suspension system comprises a socket for receiving a residual limb, a locking liner having a locking pin for attaching the liner to the socket and a sealing cap disposed between the locking line and the socket. The system further comprises a gap between a skirt of the sealing cap and an interior wall of the socket in which the skirt of the sealing cap is able to move between first and second positions.

The prosthetic device is a general use prosthetic device for shower and daily mobility applications which provides a semi-custom fit. The semi-custom fitment of the leg height and anatomical sizing of the affected leg amputation are possible via configurable liner pads which can be interchanged within the support socket based on need by the wearer. The device is capable of being used on either the left or right leg with no modifications to the device and can be secured to the wearers residual limb via a friction fit between the socket liner and limb. Furthermore, an ergonomic handle and grip provides another point of control for the device to assure safety and security.

A dynamic support system includes a control system for controlling inflation and deflation of at least one actuator having an inlet connectable to the a control unit of the dynamic support system. The control unit may be in communication with a sensor and may control inflation and deflation of the at least one actuator in response to information provided by the sensor.

A suspension interface having a fabric layer with an open proximal end and a closed distal end. The fabric layer can be knit or woven and is preferably made from a stretchable, breathable material such as nylon. At a pre-determined point along the length of the fabric layer, an external sealing element is affixed using conventional gluing means creating a bond layer. The suspension interface has an internal grip layer or external grip layer that is preferably silicone but may also be a thermoplastic material such as urethane. The internal or external grip layer can be as thick as one inch in thickness and as thin as 1/64 of an inch but is preferably about ⅛ of an inch.