A prosthetic system includes a prosthetic knee having a controller and a hydraulic unit pivotally connected to the controller. The hydraulic includes a reserve hydraulic cylinder, a brake hydraulic cylinder, and a hydraulic cylinder having a lower hydraulic compartment. A flow system fluidly connects the hydraulic cylinder, the reserve hydraulic cylinder, and the brake cylinder. The flow system has first and second flow paths in communication with the lower hydraulic compartment and the reserve hydraulic cylinder. The first flow path is in communication with lower hydraulic compartment and the reserve hydraulic cylinder via the brake cylinder. The second flow path bypasses the brake hydraulic cylinder.

A magnetic locking actuator for a prosthetic or orthotic device is provided. The actuator includes a first component including one or more magnets and a second component including one or more magnets. The first and second components are coupled to separate portions of the device. The magnets allow for adjustment of a length of the actuator to adjust an angular orientation of the first and second portions of the device. When magnets in the second component are aligned with magnets in the first component having an opposite polarity, a position of the second component is fixed relative to the first component, locking the actuator. When magnets in the second component are not aligned with magnets in the first component having the opposite polarity, the position of the second component is adjustable relative to the first component, thereby allowing adjustment of the height of the actuator.

A prosthetic appendage for attachment to an outer extremity of an amputated limb that is composed of modular elements fabricated by three-dimensional printing. In one embodiment the prosthetic appendage is a leg. The prosthetic leg includes a foot portion and a plurality of modular and three-dimensionally printed limb elements. One of the plurality of limb elements is pivotally coupled to the foot portion and another of the limb elements is configured at one end to receive the outer extremity of the amputated leg. In another embodiment of the present invention the prosthetic appendage is a hand. The prosthetic hand includes a wrist element with one end configured to receive the outer extremity of an amputated hand, a base portion attached to the wrist element and a plurality of modular and three-dimensionally printed finger elements selectively coupled to adjacent finger elements or the base to form prosthetic fingers.

A prosthetic foot can include an attachment member, at least one first brace, at least one first flexible member, an unpowered actuator, at least one second brace, and at least one second flexible member. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The at least one first brace can mount to the attachment member and the at least one first flexible member can connect to the attachment member by the at least one first brace such that a force between the ground and the attachment member can be supported by the at least one first flexible member. The unpowered actuator can mount to the attachment member and the at least one second brace can mounted to the actuator. The at least one second flexible member can connect to the attachment member by the at least one second brace such that a force between the ground and the attachment member can be supported by the at least one second flexible member.

The invention relates to prosthetic foot assembly comprising a prosthetic foot and a series elastic pneumatic actuator connected to the prosthetic foot, the series elastic pneumatic actuator being configurable between a first configuration in which the prosthetic foot is displaced to a first, rest position and a second configuration in which the prosthetic foot is displaced to a second position.

A prosthetic foot includes a heel member and a forefoot member. An ankle member receives the heel member and forefoot member shaft so as to allow the heel member and forefoot member to translate independently of one another.

An abutment system for operatively coupling an implant stem to an exo-prosthesis. The abutment system includes a plurality of interlocking sleeve elements that are operatively coupled to an implant stem positioned within a prepared site of a selected bone. The interlocking sleeve elements of the abutment system are selectively removable and replaceable.

An adjustable socket system includes a socket frame having a proximal area, a distal area opposite the proximal area, a first component arranged along a first side of the socket system, and a second component arranged along a second side of the socket system. The first component is connected to the second component. A tubular insert is arranged on an interior of at least the proximal area of the socket frame. The tubular insert forms an interior surface of the socket system. At least one tensioning element operatively connects the tubular insert to the first and/or second components. At least one tensioner is attached to the at least one tensioning element that selectively tensions the tensioning element to adjust a circumference of at least one area of the socket system.

The adjustable prosthetic leg, which is connected between a thigh and an artificial foot, has a controller, a connecting mechanism, a hydraulic unit, and a shell. The connecting mechanism and the hydraulic unit are pivotally connected to the controller, and the shell is pivotally connected to the hydraulic unit. The connecting mechanism extends into a hydraulic cylinder of the hydraulic unit. The hydraulic cylinder is in communication with a reserve hydraulic cylinder and a brake hydraulic cylinder of the hydraulic unit. The prosthetic leg allows a user to climb up or go down the stairs and walk on uneven ground easily without falling down.