Liquid infusion device

Details Liquid infusion device Liquid infusion device

A - Human Necessities

61

M

128/82

A61M 5/145 (2006.01) A61M 5/152 (2006.01)

Patent

CA 2040490

Abstract of the disclosure A liquid infusion device comprising a bladder assembly including a bladder, a housing containing the bladder assembly, an inlet/outlet portion provided on the one end of the housing, a liquid drug passage, and a flow-regulating portion provided at the liquid drug passage. The bladder comprises a tubular body made of natural rubber and a layer made of silicone resin covering an inner surface of the tubular body. In the liquid infusion device, internal pressure of a bladder when dispensing liquid durg is high, so that liquid drug can be dispensed to a patient at about a constant velocity. Additives in natural rubber do not exude since liquid drug in the bladder does not contact with natural rubber.

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