Abstract: An inflatable boot used for treating lower extremity injuries. The boot may encase at least a portion of a lower extremity, and may include a bladder defined by a substantially gas impermeable cover and liner. The bladder may include fluidically interconnected sole and leg portions. Additionally the boot may include a pump is configured to draw air into the bladder upon ambulatory motion, and a pressure release valve adapted to limit the pressure within the bladder.

Abstract: An inflatable boot and method for its manufacture, in which the boot includes a bladder for encasing at least a portion of a human foot and at least a portion of an ankle. The bladder is defined by an inner and an outer layer of substantially gas-tight material, and includes fluidically interconnected wall and sole portions. The wall portions are sized and shaped for collectively encasing a human ankle and the sole portion is sized and shaped for encasing a sole of a human foot. A structural interconnection joins the inner layer of the bladder substantially directly to the outer layer at a location interposed the sole portion and one of the wall portions to create a foot-supporting contour for the sole portion of the bladder when the bladder is inflated. The bladder for the boot is manufactured in a flattened condition, and then folded over and joined at seams to define a boot.

Abstract: Therapeutic device for wearing by an individual on a lower extremity to facilitate rehabilitation of a injured foot, ankle and/or lower leg area by promoting venous blood flow in the injured area includes a first pressurized chamber configured for imparting fluid pressure to the injured area and a weight-responsive second chamber coactable with the first pressurized chamber for providing recurrent compression to the injured area by varying the fluid pressure imparted by the first pressurized chamber. The first pressurized chamber is dimensioned to surround substantially the injured area, and the weight-responsive chamber communicates fluidwise with the first chamber and is resiliently deformable volumewise upon impaction by a force to displace fluid alternately into and from the first pressurized chamber.