Abstract: A prosthetic liner incorporating a locking attachment that can be used by amputees to engage their prosthetic liner with a prosthetic device. The prosthetic liner has an open proximal end and a closed distal end with a liner opening at the closed distal end. The prosthetic liner further comprises an external fabric layer and an internal elastomer layer. This internal elastomer layer may be made of silicone, urethane, or a thermoplastic styrene-based elastomer gel. The locking attachment is comprised of two parts: an umbrella further comprising a stem having a base and the exterior screw cap. The exterior screw cap can engage the umbrella in a variety of ways including, but not limited to, locking grooves, locking studs, and locking teeth. In addition, the locking attachment has an internally threaded central aperture that allows for the expulsion of air as well as the mounting of a prosthesis.

Abstract: A prosthetic liner incorporating a locking attachment that can be used by amputees to engage their prosthetic liner with a prosthetic device. The prosthetic liner has an open proximal end and a closed distal end with a liner opening at the closed distal end. The prosthetic liner further comprises an external fabric layer and an internal elastomer layer. This internal elastomer layer may be made of silicone, urethane, or a thermoplastic styrene-based elastomer gel. The locking attachment is comprised of two parts: an umbrella further comprising a stem having a base and the exterior screw cap. The exterior screw cap can engage the umbrella in a variety of ways including, but not limited to, locking grooves, locking studs, and locking teeth. In addition, the locking attachment has an internally threaded central aperture that allows for the expulsion of air as well as the mounting of a prosthesis.