When a patient is immobilized for a period of time, fluids can pool into the lower legs, creating the potential for serious medical complications. The pressurizing foot cuff simulates the action of walking by sending pressure pulses to an inflatable pad under the arch of the foot. Both impulse length and intervals can be set to prescribed limits based on the patient’s needs. The customer approached Humphrey Products Engineered Solutions team to develop a valve assemble that would eliminate leakage, enabling the device to maintain the prescribed amount of cuff pressure. It also needed to provide precise metering of delivery pressure, length of impulse and the interval between pulses — all within a minimally complex manifold system.
Humphrey Products answered with a manifold with three integrated solenoid valves, which eliminated multiple connection points to reduce the possibility of leakage. The manifold simplified the customer’s installation since it was custom built for the customer’s unit. The standardized manifold is 100% leak tested, instead of having to inventory and assemble different components.