Disclosed herein are systems and methods for determining alignment angles between a first prosthetic component and a second prosthetic component that are joinable together in a fixed orientation relative to each other, wherein the fixed orientation includes a first angle and optionally also a second angle that are perpendicular to each other, and wherein the first and/or second angles are selectable from a range of angles to provide a desired fixed orientation between the two prosthetic components. The system includes a magnet fixedly coupled to the first prosthetic component and one or more magnetic intensity sensors configured to be coupled to the second prosthetic component in a fixed orientation relative to the second prosthetic component such that the sensors are operable to sense a magnetic field of the magnet and produce an output signal in response to the strength of the sensed magnetic field. The system can include a processor operable to receive the output signals from the sensors and determine the first and/or second angles.

A prosthesis with controlled linear motion and methods for adapting the device to multiple amputation points are described. The device is designed to shorten during the swing phase to prevent striking the surface of the ground, and extend at the beginning and end of the swing to provide forward propulsion and begin to transfer bodyweight load from the opposing leg. The prosthesis includes an actuator to provide linear motion, a battery, sensors, and a controller.

An artificial joint with a knee axis including a swing-phase control means having a variable friction-based swing-phase controller. The variable friction-based swing-phase controller may apply different resistances at different ranges of motion by altering the torque applied upon the knee axis by altering any combination, or all of the following: the length of a lever arm and a force applied. This may be done to optimize the swing-phase control of the artificial joint to promote natural and smooth walking gait.

A lower limb prosthetic device for use when bathing and showering includes a first shell. A rod is coupled to and extends substantially perpendicularly from an upper face of the first shell. A second shell, which has a top that is open, is coupled to and extends from the rod distal from the first shell. The second shell is substantially complementary to and configured to insert a stump of an amputated leg. A plurality of bladders, which is selectively inflatable, is coupled to an inner surface of the second shell. The bladders are configured to be inflated to couple the second shell to the stump. A plurality of first holes and a plurality of second holes are positioned through the first shell and the second shell, respectively. The first holes and the second holes are configured to drain water from the first shell and the second shell, respectively.

An adjustable prosthesis system for a residual limb includes: an adjustable outer shell having a bottom, an adjustable inner volume, and an adjustable inner shape; at least one closure component attached to the outer shell and adapted to adjust the width of the inner volume and/or inner shape; an inner liner adapted to receive the residual limb and to be inserted in the inner volume; and an adjustable connector having a proximal end adjustably connected to a distal end of the outer shell and adapted to provide concurrently for a plurality of directional adjustments and/or angular adjustments of a position of the distal end of the outer shell relative to the proximal end of the connector, a distal end of the connector adapted to connect to a prosthetic device, wherein adjustments of the width(s) and the connector provide for a custom-like fit of the prosthesis on the residual limb.

A prosthetic device having a rotatable pyramid and lateral travel limit is provided. A first member has a first end connectable to a prosthetic component and a second end with a bar having sides and a distal face. The distal face has ribs thereon. A central hole is provided through the first member. A second member has a first end with a pyramid and a second end with a ring that defines a recess with a solid face. A third member has a dome on a first end and a channel on the second end. The pyramid extends through a central hole through the dome. A screw passes through the central hole of the first member wherein it can engage the second member within the recess. The lateral movement of the bar within the channel is bound by the screw contacting the second member.

The present disclosure describes transmission systems for use in artificial joints of assistive devices, such as assistive prostheses, orthoses, and powered exoskeletons. A variable transmission is configured to automatically or manually adapt the torque profile to the demand of different locomotion tasks, such as a relatively high torque and low speed profile for a task such as standing up or ascending stairs, or a relatively low torque and high speed profile for a task such as walking.

A prosthesis for a residual limb includes an element for receiving a stump fitted on or established by a support part, a distal prosthetic part, and an absorbing system. The distal prosthetic part is assembled on the support part by a pivot link forming a joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving. The absorbing system absorbs the flexion or extension efforts and is connected to the distal prosthetic part and to one of a rod or a lever that is pivotally fitted on the distal prosthetic device. The rod is mounted to the lever and to the support part.

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.

Protective sleeve for a medical device having a moveable joint including a tubular assembly comprising a flexible material that satisfies International Organization for Standardization ISO13997 (1999) for a cut resistance of at least ISO level 5. The tubular assembly has a first end portion, a second end portion, and a length extending therebetween. The tubular assembly includes a base member made of the flexible material having an internal surface and an external surface and a reinforcing member made of the flexible material coupled to the base member along the internal surface and the external surface of the base member. The reinforcing member forms a channel at the first end portion. The tubular assembly has an internal cross dimension sized to receive a medical device having a moveable joint therein. The protective sleeve further includes an adjustment member received in the channel to radially adjust the first end portion.