The DigniCap™ scalp cooling system
The DigniCap™ system has been developed to provide continuous scalp cooling with high efficiency, safety and acceptable patient comfort.
The system consists of a tight-fitting silicone cap connected to a cooling and control unit. There are canals in the cap through which coolant can circulate. To ensure the best fit and treatment temperature, an elastic and insulating outer cap of neoprene is used.
The cooling and control unit
The principle of the cooling unit function is like a refrigerator. It is controlled via a touch-screen with clear and simple symbols. The coolant, DigniCool™, is cooled to the correct temperature with the aid of a compressor and then pumped out into the cooling caps. Circulation is controlled by temperature sensors in the cap and regulated by valves.
If the temperature deviates from the set values or if other errors are detected, an alarm system is activated.
The inner cap
The patented inner cap of silicone is molded to ensure the best fit and is available in four sizes. The cap is designed to follow the hairline and leave the ears free. Silicone is a substance that retains its properties even when chilled; it is adaptable and tolerated by most people, with only small risk of hypersensitivity. The canals in the silicone cap are divided into two separate labyrinthine circuits, one for the front of the head and one for the back. Two tubes run to the cap, while the return flow uses a common tube. The coolant is pumped through the tubes to circulate around the head and back again.
The cap has three sensors: one temperature sensor for each cooling circuit and a safety sensor. Deviations from the set temperature are noted and regulated by the system. The scalp temperature can be controlled with a margin of exactitude of +/– 2°C. An alarm is activated if the temperature deviates from the set values or if other errors are detected.
The cooling cap can easily be connected to and disconnected from the cooling and control unit with snap-on couplings. This makes it possible for the patient to go to the bathroom if needed.
The outer cap
The outer cap is made of insulating and moisture-absorbent neoprene. It insulates against the ambient environment while simultaneously counteracting condensation. The elasticity of the outer cap keeps the inner cap in place during treatment and ensures maximum contact between the scalp and the inside of the cooling cap.
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