A locking member for implantation in a hip joint of a patient is disclosed. The locking member is adapted to assist in the fixation of a medical device, having an artificial hollow caput femur surface, to the collum and/or caput femur, wherein the artificial caput femur surface comprises at least one extending portion adapted to clasp a portion of the caput and/or collum femur. The locking member comprises an element adapted to lock the artificial caput femur surface such that the caput femur remains clasped and restrained in the artificial caput femur surface.

A bone cap (100) for preventing leakage of medullary canal components in a residual limb (102) that can lead to pathologies such as heterotopic ossification reducing heterotopic ossification and a method for using the same are provided. The bone cap (100) includes a proximal base (114) and an insertion extension portion (116) extending from the proximal base (114). The insertion extension portion (116) has an outer surface and a distal end (112b) opposite the proximal base (114). The insertion extension portion (116) is configured to be inserted into a resected portion of a bone (104) of a patient. The bone cap (100) also has at least one bone engaging feature (120) disposed on the outer surface of the insertion extension portion (116) adjacent to the distal end (112b) of the insertion extension portion (116). A porous coating (122) is disposed on the outer surface of the insertion extension portion (116) adjacent to the proximal base (114).

A stem for fixating a prosthesis to a bone can include a first stem portion and a second stem portion. The first stem portion can extend substantially along a longitudinal axis. The first stem portion can include a distal portion. The second stem portion can extend substantially distally from the distal portion of the first stem portion along the longitudinal axis. The second stem portion can be securable to the bone independent of the first stem portion, and the second stem portion can include a distal portion couplable to a compress assembly.

Prosthetic implant devices and related methods are provided. The prosthetic implant devices include an internal component and an external component. The internal component has an implant portion associated with one or more rare earth magnets. The internal component being of a size and shape suitable for surgical implantation into the residual limb of the amputee. The one or more rare earth magnets generate at least one magnetic field. The external component having a prosthetic piston associated with a plurality of magnetic elements and a prosthetic cup associated with a magnetic array. The magnet elements of the prosthetic piston being in adaptable magnetic association with the at least one magnetic field generated by the one or more rare earth magnets.

A modular transdermal assembly configured to couple an external prosthetic device to a bone stump. The assembly includes a modular transdermal portion and a bone fixator. The modular transdermal portion includes an interface portion configured to couple with the external prosthetic device. The bone fixator is configured to be secured to the bone stump and couple with the modular transdermal portion to retain the modular transdermal portion relative to the bone stump.

A stem for fixating a prosthesis to a bone can include a first stem portion and a second stem portion. The first stern portion can extend substantially along a longitudinal axis. The first stem portion can include a distal portion. The second stem portion can extend substantially distally from the distal portion of the first stem portion along the longitudinal axis. The second stem portion can be securable to the bone, and the second stem portion can include a distal portion couplable to a compress assembly.

A transdermal intraosseous device for coupling a bone stump to an external prosthetic device includes a bone fixator, an external connector and a plurality of modular interface components. The bone fixator includes a proximal portion configured for anchoring into the bone stump of the patient and a distal portion including a base collar configured for subcutaneous implantation. The external connector has a distal portion for coupling to the external prosthetic device and a proximal portion for coupling to the distal portion of the bone fixator. Each interface component can be removably coupled to the base collar and has different size and shape to provide a surgeon-selected transition between the prosthetic device and the patient's skin.

In the case of known prosthesis systems and socket supplies, the transmission of force is a critical issue. The inventive prosthesis system shall improve known prosthesis systems. According to the invention, a prosthesis system for human limbs is provided, which comprises an implant (101) having at least two joint parts which are movable relative to each other, wherein the first joint part (110) can be connected to a bone part (131, 132) and the second joint part (120) comprises a subcutaneously arrangeable end part (124) on the side being remote from the joint. The invention further relates to a prosthesis system comprising a subcutaneous implant and a socket (170).

A system and method for improving limb function through the use of percutaneous mechanical and neural interfaces. The system generally uses a hollow long bone axial rod that is inserted into the long bone medullary cavity. A transfer rod with a central channel is mounted to the long bone axial rod. An exterior body attachment is connected to the transfer rod and attachment rings attach muscle groups, fascia layers and dermal layers to the transfer rod. Additionally, the system is configured to collect and transmit nerve signaling data to an external processor and additionally configured to transmit data from the external processor to the plurality of nerves.

A surgical implant for supporting a prosthetic device at a distal end of an amputated limb, including:

a cup having a base and surrounding side wall for defining therein a volume for accommodating a terminal end of a bone of the amputated limb;

a central intramedullary stem extending from the cup base for insertion into a medullary cavity of the bone;

a plurality of extramedullary struts extending from the side wall generally parallel to the central intramedullary stem and locatable in contact with or in a closely adjacent relation with an outer surface of the bone; and

an attachment member extending from an outer face of the cup base.