Novel mobility devices are disclosed wherein one embodiment comprises a support frame and one or more boosters coupled to the frame. The booster preferably comprises a housing, a top support extending upward from the housing, and an opposing bottom support extending downward from the housing. The bottom support is preferably biased toward the housing. The housing may contain a sleeve having a top channel in communication with an opposing bottom channel. The top channel is configured to receive the top support, whereas the bottom channel is configured to receive the bottom support, a retaining ring, and a spring. The spring is disposed between a floor of the bottom channel and the retaining ring. The sleeve may also have a socket configured to receive a roller, wherein the roller has a bottom hole configured to receive the top support. The device permits the user to stand from a seated position or vice versa without the assistance of a third party, grab hold of handlebars extending from the frame, and then move about with independence. The device may also be folded for ease of storage.

The invention relates to an adaptive attachment wheel for wheelchairs, formed as a unit consisting of: a wheel (5); frame segments (1); adaptation shells (7, 8) for lateral guidance on the wheelchair front tubes; and at least one holding element (6) that can be fastened to the wheelchair; such that, when the adaptive attachment wheel is attached to the wheel-chair, the adaptation shells (7, 8) are brought together with the wheelchair front tubes, the front casters of which are lifted off of the ground, and a three-wheeled wheelchair is produced, the front wheel (5) of which can be steered and braked by means of an one-hand steering system (13).

The present disclosure relates to a system and method of detecting activity by a wheelchair user. In one aspect, a method comprises collecting motion data of a user device located on an appendage of the user; detecting, by a processor circuit, that one or more activities by the wheelchair user occurred based on the motion data; calculating, by a processor circuit, an energy expenditure by the user based the one or more activities by the wheelchair user occurred; and outputting, by a processor circuit, the energy expenditure estimation.

An automatic wheelchair locking system including: a first lock for a first wheel; a first persistent driver configured to engage and disengage the first lock; at least one processor configured to control the first persistent driver; and a memory having stored thereon instructions that, when executed by the at least one processor, control the at least one processor to: in response to receiving instructions to disengage the first lock while the first lock is engaged, control the first persistent driver to disengage the first lock; and in response to receiving instructions to engage the first lock while the first lock is disengaged, control the first persistent driver to engage the first lock.

A wheelchair comprises a chair frame, two armrest support rods, two armrests, a plurality of wheels, and at least one pedal mechanism. The two armrest support rods connect the chair frame in a telescopic manner, and located at two sides of the chair frame, respectively. The two armrests connect the two armrest support rods, respectively, and can be moved forward and backward relative to the connected armrest support rods in a horizontal direction. The plurality of wheels connects a base portion of the chair frame. The at least one pedal mechanism includes a connecting rod and a foot pedal. The connecting rod is pivotally mounted at a front side of the chair frame, and the foot pedal is pivotally connected to the connecting rod, so that the connecting rod may drive the foot pedal to pivot about the pivotally connected end. Similarly, the foot pedal can also pivot relative to the connecting rod. Through the above design, the wheelchair can be adjusted according to the user's physique and requirement.

The present invention provides an assembly having a wheelchair and a lift assembly to urge the seat surface upward with respect to the frame from a lowered position when supporting the seated individual during use to an elevated position with respect to the frame assisting the individual during ingress or egress to or from the wheelchair. The lift assembly may include a mechanical linkage and an actuator. The assembly also provides at least one brake configured to block rotation of the wheelchair wheel with respect to the wheelchair frame in a locked state and disengaging with the wheels to allow rotation of the wheel with respect to the frame in an unlocked state. The assembly also provides a brake linkage communicating between the lift assembly and the brake to move the brake into the lock state when the seat surface moved to the elevated position.

A brake system for use with a wheeled device, such as a wheeled person transportation device, such as a wheelchair. The brake system comprises a handle comprising a first portion and a second portion, wherein the first portion is moveably coupled to the second portion; a carrier comprising an internal cavity; a brake actuator for actuating a brake, the brake actuator being arranged within the internal cavity; brake actuator biasing means for applying a biasing force to the brake actuator for biasing the brake actuator to a brake-engaged position; and force-transfer means coupled to the first portion and to the brake actuator such that movement of the first portion towards the second portion causes the brake actuator to move along the internal cavity of the carrier against the biasing force to a brake-disengaged position.

A brake for a trolley that can brake rotation of a trolley wheel only in one direction. The brake includes a support connectable with a frame of the trolley, a first axle connected with another end of the support and peripherally provided with three indents, a pivotal first handle with a detent, wherein the first handle on the first axle can assume three positions defined by the three indents, a pin connected with the first handle and arranged parallel to the first axle, an eccentric ring with a recess, through which the pin projects, wherein the eccentric ring is pivotally mounted on the first axle and can engage with the outer periphery of the pulley wheel, a tension spring connecting the inner periphery of the eccentric ring and the pin, and a stop element projecting from the first axle, which can lean against the inner periphery of the eccentric ring. The brake enables unidirectional braking of a trolley either in forward movement or in rearward movement.

A wheelchair with a ratchet/pawl drive system comprising a seat back, a seat bottom, a frame, two mounting brackets, two car guide tracks, two front wheel assemblies, two car assemblies, two brake assemblies, two drive wheels, and two wheelchair wheels. The ratchet/pawl drive comprises at least one drive wheel sprocket, at least one ratchet/pawl assembly, at least one forward-neutral-reverse lever and at least one brake assembly. The ratcheting/pawl drive system may be included in a novel wheelchair or may be integrated into existing standard wheelchairs as a retrofit kit.

An automatic wheelchair locking system comprising: a first touch sensor configured to detect a touch of a first wheel of a wheelchair; a first lock for the first wheel; a first motor configured to engage and disengage the first lock; at least one processor configured to communicate with the first touch sensor and control the first motor; and a memory having stored thereon instructions that, when executed by the at least one processor, control the at least one processor to: in response to receiving sensor information indicative of a user touching the wheel while the first lock is engaged, control the first motor to disengage the first lock; and in response to receiving sensor information indicative of no user touching the wheel while the first lock is disengaged, control the first motor to engage the first lock.