| abstract |
A fluid delivery device for delivering small quantities of a fluid such as insulin to a patient, comprising a disposable unit comprising a disposable housing (20) that comprises one lower part and one upper part, the lower and upper parts together forming a shell that defines an internal partial toroidal arcuate cavity. The disposable housing fits together with a drive unit (34).The disposable housing (20) contains an arcuate cylinder (28) for containing fluid to be delivered, a piston (38) movably mounted in the cylinder for driving out fluid to be delivered, an adhesive support (14) for attaching the disposable housing to a patient, and a cannula (22) that when the disposable housing is attached to a patient is insertable in the patient's skin for delivering fluid to the patient. The drive unit (30) is preferably removably mounted on a front face of the disposable housing (20) opposite the adhesive support, the removable drive unit having a shape that when fitted complements the shape of the front face of the disposable housing to form with the disposable housing. The drive unit (30) comprises means for actuating the piston and a control unit for the device. |