An automatic leg tube locking device including a hollow cylinder shaped guide switch and a circular truncated cone shaped guide post which are mutually matched for use. Through holes are evenly formed in the side surface of the guide switch, the through holes are adapted with locking shafts, a transmission mechanism is arranged between the guide switch and the guide post, so that the guide switch vertically moves along the inclined cylinder surface of the guide post and drives the locking shafts to move along the guide post when the guide switch and the guide post rotate relative to each other. A photography tripod, a unipod and a crutch are further provided. The automatic leg tube locking device, the photography tripod, the unipod and the crutch are capable of pulling the leg tube to any position and lock the leg tube automatically in a locking state.

A walker standing aid accessory package consists of a lower attachment and an upper attachment. The lower foot bar piece allows the caregiver to utilize body weight to pin the walker's front legs to the floor or ground surface securely. The upper part incorporates multiple hand placement stabilization choices for both the patient and the caregiver. This invention increases patient's self help and reduces most of the caregiver's exertion. Once the patient is standing upright, the caregiver may step aside and monitor said patients immediate ambulation. The accessory package converts an existing walker into a device that not only helps the patient to stand but also reduces the strain on the caregiver. The walker with the accessories installed offers no interference or compromise to the existing walker's integrity, mobility or storage.

A light-emitting tip disposed at the bottom end of a crutch includes a sleeve fitted around the bottom end of the crutch; a sleeve holder coupled to the sleeve to receive the bottom end of the crutch; a base coupled to a bottom end of the sleeve holder to form a receiving space; at least one light-emitting component fixed to the base from above and disposed between the sleeve holder and the base to emit light continuously or flashes to give an alert or provide illumination to protect users against danger in darkness; and a control component coupled to the at least one light-emitting component to determine whether to turn on and turn off the at least one light-emitting component, wherein the bottom end of the sleeve holder is made of a transparent material penetrable by any light ray emitted from the at least one light-emitting component.

A mobility support apparatus, comprising: two operatively connected support struts having portions arranged substantially parallel to one another, each strut forming a pair with a corresponding leg for interfacing with the ground; the pair of strut and leg being configured to be slideably moveable relative to each other; and biasing means configured for providing compressive resistance force between the pair of strut and leg, wherein a tension factor of the biasing means is independently adjustable, during use, for each respective pair of strut and leg.

A crutch device includes a first strut portion connected to a second strut portion with a hinge and a flexible sling connected to the first and second strut portions, wherein the device is configurable between a crutch mode and a sling mode. Also described herein is a crutch device comprising a first strut portion, wherein the first strut portion comprises an elongated structure with a first end and second end; a second strut portion, wherein the second strut portion is connected to the first strut portion via a hinge, and the second strut portion comprises a first elongated structure and a second elongated structure, each with a first end and second end; and a flexible sling connected to the first and second strut portions, wherein the device is configurable between a crutch mode, a sling mode and a compact mode.