Foot support systems, e.g., for articles of footwear, include systems for changing the hardness or firmness of the foot support portion (e.g., of a sole structure) and/or systems for moving (e.g., selectively moving) fluid between various portions of the foot support system. Such systems may include: a foot support bladder, a pump, and a fluid reservoir. Two or more fluid transfer lines may be provided to connect these components, and these fluid lines are equipped with fluid flow control device(s) and/or check valves to enable selective movement of fluid between the fluid reservoir and the foot support bladder. Such systems enable one to set and maintain two or more foot support pressures in the foot support bladder.

An article of footwear includes an upper member and a sole structure, with a sensor system connected to the sole structure. The sensor system includes a plurality of sensors that are configured for detecting forces exerted by a user's foot on the sensor. Each sensor includes two electrodes that are in communication with a force sensitive resistive material. Additionally, the sensor system may be provided on an insert that may form a sole member of the article of footwear. The insert may include an airflow system that includes one or more air chambers in communication with one or more air reservoirs through air passages extending therebetween. The insert may also have a multi-layered structure, with the airflow system provided between the layers.

A sophisticated air bladder that functions as an arch support of the foot that can be adjusted, a multitude of times as needed, by the user. The bladder is constructed so the air that provides the support is directed and corralled to the areas of the foot where support is typically needed and desired and will be maintained throughout weight bearing activities of the user. It is also versatile and can be used with any type of footwear, insole, orthotic or just a strap.

A dynamic pressure controlled air cushion device disposed on a bottom part of a shoe comprises a first air bag and a second air bag communicated with each other through an air passage, and the first air bag and the second air bag are respectively disposed corresponding to a front foot sole and a rear foot sole of a user. Through introducing the air into the first air bag by the first air pump and introducing the air into the second air bag by the second air pump, the first air bag and the second air bag are inflated, so as to increase a supporting force for the front foot sole and the rear foot sole of the user

The invention provides an apparatus and method for the prevention of VTE and related conditions to promote blood flow in a foot, the apparatus including: at least two inflatable bladders (20, 21) adapted to be disposed in use under the foot; and one or more pumps (31, 32) configured to repeatedly inflate and deflate the bladders with a fluid, applying compressive force to the foot in use.

A wearable weight scale, including an extensible fluid-filled insole for measuring and producing data relating to pressure changes within the extensible fluid-filled insole; a transceiver disposed about the extensible fluid-filled insole for transmitting the data; and one or more electronic devices for wirelessly receiving the transmitted data for displaying the data to a user.

A foot support for a prosthetic boot has a shape-holding layer and cushion layers on opposite sides of the shape-holding layer. Covers made of nylon and vinyl laminates surround the layers. The vinyl laminates are fused by welding edges of the cover around the foot support. The edge welding surrounds the foot support. An inner parallel welding holds a valve and forms an inflation passage. The inner welding continues around concave curved edges of the shape-holding and cushion layers and terminates where it rejoins the outer welding, forming an inflatable tarsal and metatarsal supporting chamber. A small hard pump has two ends to either increase or reduce pressure in the supporting chamber.

An orthotic insole with a contoured support surface to conform to the underside of a foot. An arch support is provided by an inflatable bladder located within the insole and having a pump in the heel region of the insole to allow adjustment of the bladder. A valve is provided at the side of the bladder to release air from the bladder.

The disclosure relates to a foot protection device includes a pressure sensing layer, a deformation layer, and a control module. The pressure sensing layer is configured to measure pressure value between a wearer's foot and the pressure sensing layer. The control module is electrically connected with the pressure sensing layer and the deformation layer to receive a pressure values obtained by the pressure sensing layer and control thickness of each area of the deformation layer according to the pressure value.

An interconnected multicompartmental pressure redistribution system that is able to precisely identify contact pressure points and address excess pressure on the body by redistributing the pressure in real time. Sensors that are part of a matrix of fluid substance-filled interactive pixels communicate with a microcontroller that may also be in wireless communication with a smart device. The microcontroller controls the individual fluid flow regulators located between the interactive pixels. This causes specific flow regulators to open, allowing the fluid substance to flow from one interactive pixel to another, redistributing pressure, as needed.