Insulin pump

Details Insulin pump Insulin pump

2008-05-27

2008-05-27

Desanto, Matthew F. (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S031000, C604S151000

Reexamination Certificate

active

10792878

ABSTRACT:
A portable insulin delivery device that supplies insulin in a pre-pressurized chamber, passes the insulin through a pressure-dropping labyrinth to a flow control valve. The valve is activated by a piezoelectric actuator. This allows for precise insulin delivery. An electronic package provides for programming of basal rates and bolus. A pressure sensor relays data concerning normal operation and pressure changes that indicate problems. The processor, keypad, displays power source, fluid pressure sensor and fluid flow control actuator are housed in a base unit. A removable cartridge unit houses the pre-pressurized fluid reservoir, flow path labyrinth, and flow control valve.

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A high-precision piezoresistive Flow Sensor for microdosing applications; Boillat www.sensorsmag.com/articles/0900/129/main.shtml.

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