A prosthetic foot comprising a vacuum system configured to attach to a vacuum attachment apparatus and a residual limb. The prosthetic foot may comprise a resilient bottom member, a resilient top member, and a vacuum system. The resilient bottom member may comprise a front end and a rear end. The resilient top member may comprise a front end and a rear end and the front end of the resilient top member may be connected to the front end of the resilient bottom member. The vacuum system may be coupled to an underside of the rear end of the top member. The vacuum system may comprise a compressible member, a chamber located within the compressible member, a universal valve system received within the compressible member, a passageway connecting the valve system and the chamber, and an air return coupled to the valve system and the vacuum attachment apparatus.

A prosthetic system includes first and second parts rotatable relative to one another about a joint. The first and second parts are adapted to form at least part of a weight bearing connection between a prosthetic foot and a socket. A pump system includes a pump mechanism operatively connected to the first and second parts. Rotation of the first part and/or the second part about the joint moves the pump mechanism between an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, and an expanded configuration in which the volume of the fluid chamber is increased.

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.

A prosthetic foot insert with upper attachment member, a roof spring extending forwards from the upper attachment means, and a base spring coupled to the roof spring at least two points. A rear coupling element is provided for supporting the base spring, and a free space is formed between the coupling element, the roof spring and the base spring. The base spring, in the heel area, protrudes rearwards as a free lever beyond the rear coupling element.

A method of regulating pressure inside a prosthetic socket includes measuring pressure inside of a prosthetic socket using one or more sensors operatively coupled to a pump system to obtain pressure information associated with an inside of the prosthetic socket. The pump system has a pump mechanism in fluid communication with the inside of the prosthetic socket. The method involves actuating the pump mechanism without human intervention to regulate vacuum inside of the prosthetic socket based on the pressure information.

An osseointegrated abutment support socket for a residual limb in which an osseointegrated abutment has been implanted is described. The osseointegrated abutment support socket may include a distal socket base assembly, multiple longitudinal struts and a percutaneous site protector. The distal socket base assembly may include a base plate, a collar extending proximally from the base plate and forming a receptacle for receiving a distal end of the osseointegrated abutment, and a strut support ring disposed around the collar. The struts are connected at their distal ends to the strut support ring and extend proximally upward. The percutaneous site protector contacts a distal surface of the residual limb near a percutaneous site where the distal end of the osseointegrated abutment exits the residual limb.

A prosthetic system includes a prosthetic foot defining an upper surface and having a flexible configuration and a pump system attached to the prosthetic foot. The pump system includes a pump mechanism defining a fluid chamber having variable configuration and an actuating part. The actuating part is arranged to selectively engage with and separate a distance from the upper surface of the foot plate to move the pump mechanism between a first position in which a volume of the fluid chamber is zero or near-zero and a second position in which the volume of the fluid chamber is expanded relative to the first position. The volume of the fluid chamber increases when the actuating part moves away from the upper surface of the foot plate.

A vacuum suspension system includes a prosthetic socket adapted to receive a residual limb. A pump system includes a pump mechanism in fluid communication with the prosthetic socket, and at least one sensor associated with the prosthetic socket and/or the pump mechanism. A control system is operably connected to the pump mechanism and the least one sensor. The control system is arranged to receive and process data from the at least one sensor and to actuate the pump mechanism based on the received data from the at least one sensor.

A prosthesis socket vacuum device includes a base formed with a first chamber formed with a discharge channel and a vacuum relief channel and a second chamber provided, on an underside thereof, with a locking assembly, which includes a position-constraining block. A positioning assembly having sealing gaskets fit thereto includes a locking pin extending through a positioning member and formed with a recess. In setting the positioning assembly into the base, the positioning member compresses and expels internal air of the first chamber to the outside through the discharge channel in a soundless manner to form a vacuum condition. The locking pin drives the locking assembly to displace until the recess and a closure hole are fixed relative to each other so as to have the locking assembly closes the vacuum relief channel. A gap is provided between the closure hole and the recess to provide an effect of cushioning.

A prosthetic foot comprising a vacuum system configured to attach to a vacuum attachment apparatus and a residual limb. The prosthetic foot may comprise a resilient bottom member, a resilient top member, and a vacuum system. The resilient bottom member may comprise a front end and a rear end. The resilient top member may comprise a front end and a rear end and the front end of the resilient top member may be connected to the front end of the resilient bottom member. The vacuum system may be coupled to an underside of the rear end of the top member. The vacuum system may comprise a compressible member, a chamber located within the compressible member, a valve system received within the compressible member, a passageway connecting the valve system and the chamber, and an air return coupled to the valve system and the vacuum attachment apparatus.