초록 ▼

A disposable IV infusion device for ambulatory patients comprises a disk-shaped cover plate and a disk-shaped impeller plate which are interconnected by a stretched membrane that joins the edge of the cover plate with the edge of the impeller plate. The effect of the membrane is to urge the plates i

A disposable IV infusion device for ambulatory patients comprises a disk-shaped cover plate and a disk-shaped impeller plate which are interconnected by a stretched membrane that joins the edge of the cover plate with the edge of the impeller plate. The effect of the membrane is to urge the plates into juxtaposition. A fluid port is formed on the cover plate for fluid communication through the port with a collapsible fluid chamber established between the plates. Fluid, when injected into the chamber between the plates, is subsequently expelled through the port for controlled infusion to a patient as the membrane pulls the plates toward each other to collapse the chamber.

대표청구항 ▼

A portable device for infusing fluids to a patient which comprises: a first rigid plate having a fluid port, said first plate being circumscribed by an edge; a second rigid plate circumscribed by an edge; a stretched elastic membrane interconnecting and surrounding said respective edges for urging s

A portable device for infusing fluids to a patient which comprises: a first rigid plate having a fluid port, said first plate being circumscribed by an edge; a second rigid plate circumscribed by an edge; a stretched elastic membrane interconnecting and surrounding said respective edges for urging said first and second plates from a first configuration, in which said plates are separated to establish a fluid chamber therebetween, into a second configuration, wherein said plates are juxtaposed, to expel fluid from said chamber through said port to said patient, said membrane being disposed to urge said first and second plates between said first and second configurations with a substantially constant force; an IV line connected in fluid communication with said port; and a roller clamp associated with said IV line to control the flow of fluid from said chamber through said line.