Dryness testing device

A dryness testing device configured for determining the dryness of a medical instrument,

• said medical instrument comprising an endoscope including:
• a proximal umbilical end comprising a plurality of instrument connections;
• a distal end;
• and
• a plurality of channels to be tested, each of the plurality of channels comprising a proximal channel end connected to a respective one of the plurality of instrument connections and extending to the distal end of the endoscope to a distal channel end;
• the dryness testing device comprising:
• a cabinet comprising an internal space;
• a cabinet manifold;
• one or more chambers located within the internal cabinet space, each chamber configured for testing air flow from a respective channel of the medical instrument, wherein each of the one or more chambers comprises:
• a first compartment and a second compartment separated by an internal dividing wall, the dividing wall comprising a substantially centred opening to allow air to pass through the first compartment to the second compartment;
• a differential pressure sensor configured to determine rate of air flow between the first compartment and the second compartment;
• a humidity and temperature sensor configured to measure the humidity and temperature of air in the second compartment;
• an air inlet configured to connect air flow from a respective one of the plurality of instrument connections associated with a respective channel to be tested to a respective first compartment;
• and
• an air outlet configured to connect airflow from the second compartment to the cabinet manifold;
• an extraction pump configured to cause air to be drawn from the cabinet, through the plurality of channels of the medical instrument when connected to a respective inlet port of a respective chamber;
• and into the cabinet manifold via the one or more chambers;
• wherein:
• the extraction pump causes air to be drawn into the distal end of each of the channels of the medical instrument into a respective one of the one or more chambers connected to a respective proximal umbilical end instrument connection for air measurements in the first and second compartments of the respective chamber;
• wherein the air measurements provide an indication of the dryness of the medical instrument;
• and
• the dryness testing device is configured for measuring the dryness of each of the plurality of channels of the medical instrument independently.