| abstract |
A device 12 for controlling the collection and delivery of material to a patient, the device being operable to receive the substance dispensers 51, 52 in the release position when the dispenser is in a form containing the substance, In the situation, the dispenser engaging portion 20 operable to lock the dispensers 51 and 52, and access control means for controlling the release position and the lock position in accordance with the substance handling situation. |