A patient immersion sensor includes a radio detection and ranging (RADAR) apparatus to determine a time of flight (TOF) of a RADAR pulse and a reflected signal that is reflected by a patient or by a portion of a patient support surface supporting the patient. The TOF is indicative of an immersion depth or a distance toward bottoming out of a patient supported on the patient support surface, such as a mattress or a pad. The RADAR apparatus emits pulses of very short duration so as to be able to detect objects, such as a patient or a portion of a mattress or pad, at very close distances. The RADAR apparatus may use time-of-flight (TOF) between transmission of the pulse and receipt of a reflected signal to determine a distance toward bottoming out by the patient, thereby to determine if the patient is properly immersed into the patient support surface. Adjustments to inflation or deflation of one or more bladders are made to achieve a desired immersion amount within a tolerance range between upper and lower TOF thresholds.

Technologies are provided for determining a likelihood or risk of a human patient for developing pressure injury based on patterns of movement by the patient determined using a specialized measurement support surface. Some embodiments automatically ascertain whether patterns of movements of a human subject, whose weight is supported on the support surface, exhibit sufficient frequency and variability of activity such as will confer either certain health benefits or expose the individual to certain health risks, such as development of pressure ulcers in the load-bearing skin and soft tissues. The measurement support surface can include a contact layer, a pressure-measuring layer having an air bladder subjacent to the measurement support surface, and a substrate layer with a density and stiffness to mechanically isolate the pressure-measuring layer from ambient vibrations transmitted through a floor, furniture, or other intervening articles upon which the measurement support surface is mounted.

A method of determining the place and location of a human pelvis, including detecting sitting pressures/contact pressures exerted on the seat, the lounger or the support by the ischial tuberosities and the coccyx of the sitting person or by the iliac crests and the pubic bone of the lying person by a surface sensor; determining, by a computer unit, a first position on the surface sensor where a first peak sitting pressure/peak contact pressure is reached; determining a second position on the surface sensor where a second peak sitting pressure/peak contact pressure is reached; determining a distance between the first position and the second position; determining a third position on the surface sensor where a third peak sitting pressure/peak contact pressure is reached, the position being between the first position and the second position; and limiting an area of the surface sensor which detects sitting and contact pressures.

A load cell apparatus includes a base member, a cap member, a number of first members provided between the base member and the cap member and forming at least a portion of a support wall of the load cell apparatus, and a plurality of strain gauges directly coupled to the number of first members, the plurality of strain gauges being positioned to measure an axial load applied to the load cell in a direction extending from the cap member to the base member.

A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

A notification system is provided that provides notification of patient events such as movement and/or incontinence. The notification system provides for a plurality of different pressure sensor pads as well as an incontinence pad to be used in association with a single monitor.

System for providing feedback to a user of a walking aid to regulate his gait, stance and/or activity irregularities, the system being configured to be installed on a walking aid comprising a frame, at least two wheels, two handles and wherein the frame comprises an intermediate supporting frame between the left and right handles of the frame, the system comprising a configuration of sensors for measuring at least one gait, stance and/or activity indicator, a user profile comprising user gait, stance and activity characteristics, a configuration of at least one stimuli generating devices configured to provide feedback to the user with at least one of a tactile, visual or auditory cue based on the measurements of the sensors and on the user profile.

A notification device is provided that includes a sensor pad, and an electronics module generates one or more notifications in response to signals received from the sensor pad. In a first embodiment, the sensor pad includes a pressure sensor for sensing pressure applied by a patient and generating a pressure signal, and conductive tracings for sensing moisture due to incontinence and generating a moisture detection signal when moisture is detected. In another embodiment, an absorbent sensor pad includes a sensor pad for sensing moisture and includes an absorbent chuck having a moisture-impermeable sheet with an absorbent material on an upper surface thereof, wherein the moisture-impermeable sheet has an aperture for receiving the sensor pad. The absorbent sensor pad may be provided in the form of a diaper.

Disclosed is a multifunctional exercise chair for body stretching, comprising a wheelchair frame body, wherein a mounting frame is detachably mounted on an end of the wheelchair frame body away from the driving rear wheel and located under the seat cushion, a pedal gear is rotatably mounted at a bottom of the mounting frame and a pedal is provided thereon, a hand crank gear is rotatably mounted on a top of the mounting frame and a hand crank handle is provided thereon, a rotating shaft is provided between two driving rear wheels; a driven gear is fixedly mounted on the rotating shaft, a supporting chain gear is mounted on the mounting frame and arranged adjacent to the pedal gear, and the hand crank gear, the pedal gear, the driven gear and the supporting chain gear are wound and connected by a transmission chain.

Disclosed is a vehicle comprising a frame component having an adjustable physical property; and a controller configured to receive data relating to the vehicle in use and, based on received data, determine a value of the physical property of the frame component. A method, a computer program and a control system are also disclosed.