An interchangeable lock-pump prosthetic system that includes a universal dummy, vacuum pump, and mechanical lock. Each of the three objects have similar geometries for the purpose of fitting into a prosthetic, whereupon a user may for instance, swap the vacuum pump with the lock, depending on the needs of the user and without changing to a separate prosthetic. The universal dummy is an inactive component and acts as a placeholder during manufacturing of the socket, for the eventual inclusion of the vacuum pump or mechanical lock. The vacuum pump is a pressure dependent object that acts to remove any residual air between the socket and the elastomeric liner. The lock takes advantage of a mechanical locking pin which receives a properly configured liner, thus securing the user within the prosthetic socket. An alternative embodiment of the present invention includes use of an overmolded threaded insert which rotatably engages with a male threaded piece having a central cavity for receiving either the vacuum pump or the mechanical lock described herein.

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.

Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.

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.

A moisture permeable composite material for a wide variety of applications including without limitation prosthetic liners, orthotic liners, clothing, space suits and environmental suits comprising: an inner layer comprising a hydrogel, a thin tough hydrogel membrane, or dual network hydrogel; and an outer layer comprising a porous elastomer or an open cell foam.

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 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.

Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.

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.