Aspects of the disclosure relate to an adjustable implant configured to be implanted into a patient that includes an adjustable portion moveable relative to a housing. The adjustable implant may include various smart components for enhancing operation of the implant. Smart components may include a controller for managing operations and a transducer for communicating ultrasound data with an external interface device. Additional smart components may include a load cell within the housing for measuring an imparted load; a sensor for measuring angular position of the adjustable portion; a dual sensor arrangement for measuring imparted forces; a reed switch; a half piezo transducer; and an energy harvester.

An expandable rod system includes a first rod portion having an internal cavity, a second rod portion sealingly positioned within the internal cavity of the first rod portion and moveable in a first axial direction relative to the first rod portion, and an osmotic chamber for receiving an osmotic agent to facilitate movement of the second rod portion to expand the rod system. The rod system includes a lock assembly engageable with the second rod portion to prevent the second rod portion from moving in a second axial direction. The lock assembly includes a tapered ramped portion and a bearing member that is moveable within the tapered ramped portion such that when compression forces are imparted on the second rod portion, the bearing member becomes wedged in the tapered ramped portion.

A spinal distraction system includes a distraction rod having a first end and a second end, the first end being configured for affixation to a subject's spine at a first location, the distraction rod having a second end containing a recess having a threaded portion disposed therein. The system further includes an adjustable portion configured for affixation relative to the subject's spine at a second location remote from the first location, the adjustable portion comprising a housing containing a magnetic assembly, the magnetic assembly affixed at one end thereof to a lead screw, the lead screw operatively coupled to the threaded portion. A locking pin may secure the lead screw to the magnetic assembly. An O-ring gland disposed on the end of the housing may form a dynamic seal with the distraction rod.

A method of changing a bone angle includes creating an osteotomy between a first portion and a second portion of a tibia of a patient; creating a cavity in the tibia by removing bone material along an axis extending in a substantially longitudinal direction from a first point at the tibial plateau to a second point; placing a non-invasively adjustable implant into the cavity, the non-invasively adjustable implant comprising an adjustable actuator having an outer housing and an inner shaft, telescopically disposed in the outer housing, and a driving element configured to be remotely operable to telescopically displace the inner shaft in relation to the outer housing; coupling one of the outer housing or the inner shaft to the first portion of the tibia; coupling the other of the outer housing or the inner shaft to the second portion of the tibia; and remotely operating the driving element to telescopically displace the inner shaft in relation to the outer housing, thus changing an angle between the first portion and second portion of the tibia.

An intramedullary lengthening device includes a housing and a distraction shaft. The intramedullary lengthening device is placed within a cavity of two bone sections (either already separated or purposely separated for insertion of the device). The distraction shaft of the intramedullary lengthening device is attached to the one of the bone sections using, for example, one or more attachment screws. The housing of the intramedullary lengthening device is attached to the second bone section using, for instance, one or more attachment screws. Over the treatment period, the bone is continually distracted, creating a new separation into which osteogenesis can occur. In one embodiment, the intramedullary lengthening device includes an actuator and an extension rod, which can be attached to one other.

A reconfigurable bone adjustment device (1, 101, 201) includes a first member (10,110, 210, 1010) configured for attachment to a first bone fragment, a second member (20, 130, 230, 1030) configured for attachment to a second bone fragment and a reconfiguration assembly (2, 102, 401, 501, 601, 701, 801, 901, 1020) configured to move the second member relative to the first member. The reconfiguration assembly includes a drive mechanism (50, 150, 250, 440, 540, 640, 740, 840, 940, 1050) and a threaded rod (70, 170, 245, 470, 570, 670, 770, 870, 970, 1070, 1170) operatively coupled to the drive mechanism so that rotation of the drive mechanism rotates the threaded rod. The reconfiguration assembly operates to reduces stresses, forces, bending moments and/or eccentric moments on a junction and/or by configuring the junction in a manner whereby one of more of the forces, is isolated away from the junction.

The present disclosure broadly provides applications of communication at ultrasound frequencies to establish transcutaneous data communication between medical devices located on and/or within a body of a patient, including inter alia: features for adjustable implants including data communication, hermetic containment, and torque amplification features.

Intramedullary systems, expandable intramedullary nails, expandable anchors, and methods of using the same. The intramedullary system may include an expandable intramedullary nail configured to extend into an intramedullary canal of a long bone and/or one or more expandable anchors configured to extend at an angle transverse to the intramedullary nail. The intramedullary nails and/or anchors may include one or more integrated expansion mechanisms that allow for insertion in a contracted configuration and expansion into a deployed configuration to lock the relative position and prevent axial rotation and translation of the system.

The present disclosure relates to a gradually expanding limb reconstruction system (100) comprising at least one fixator mechanism (100a) and at least one distractor mechanism (100b) wherein distractor mechanism is a self-driven growing rod system (500) comprising at least one cylindrical static rod (502) with an internal bore; at least one piston rod (506), coaxially coupled with said static rod (502) and configured to distract longitudinally out of the static rod (502); at least one fluid receptacle component (508) in the internal bore of the static rod (502); at least one fluid source (510) configured to hold at least one sterile biocompatible fluid at a pre-determined pressure; at least one pressure and flow control unit (512) configured to release metered doses of the sterile biocompatible fluid from the fluid source (510) to the fluid receptacle component (508) via at least one fluid transfer port (514).

A method for adjusting an adjustable implant includes broadcasting identification information from an adjustable implant implanted within a subject, receiving wirelessly with the adjustable implant, from a device external to the subject, an adjustment setting configured to be executed by the adjustable implant, receiving wirelessly with the adjustable implant, from a device external to the subject, an instruction to perform the adjustment setting, activating a motor on the adjustable implant to perform the adjustment setting, and sending, to a device external to the subject, a progress of the adjustment setting.