A PORTABLE INTERFACE DEVICE AND PUMP

摘要

An interface device comprising: an airtight receptacle, a movable filling within the airtight receptacle, a port attached to the airtight receptacle to allow the receptacle to be pressurised, evacuated or sealed, wherein the interface device is formed from multiple layers having varying flexible properties in different zones, and a hand pump comprising a main chamber with a piston arranged to cause air to flow in and out of the main chamber, a valve unit, and a rotatable mode control unit comprising a main port for attachment to a device that is to be inflated, the mode control unit operable with the valve unit to switch the pump between one of three modes, wherein in a first mode reciprocal movement of the piston causes air to flow out of the main port, in a second mode reciprocal movement of the piston causes air to flow in through the main port and in a third mode the main port is sealed.