| 摘要 |
A portable insulin delivery device that supplies insulin in a pre-pressurized chamber (16), passes the insulin through a pressure-dropping labyrinth (22) to a flow control valve (50, 30). The valve (50, 30) is activated by a piezoelectric actuator (26). This allows for precise insulin delivery. An electronic package provides for programming of basal rates and bolus. A pressure sensor (60, 62, 72, 74) relays data concerning normal operation and pressur changes that indicate problems. The processor (100), keyboard (106), display (102), power source (32), fluid pressure sensor (60, 62, 72, 74) and fluid flow control actuator (26) are housed in a base unit. A removable cartridge unit (4) houses the pre-pressurized fluid reservoir (16), flow path labyrinth (22), and flow control valve (50, 30).
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