초록 ▼

An intravenous delivery system for automatically controlling rate of flow of fluid to a recipient. Desired rate of flow is compared with actual rate of flow to produce error signals which are utilized to cause actual rate of flow to equal the desired rate of flow. The present invention may be used w

An intravenous delivery system for automatically controlling rate of flow of fluid to a recipient. Desired rate of flow is compared with actual rate of flow to produce error signals which are utilized to cause actual rate of flow to equal the desired rate of flow. The present invention may be used with a conventional gravity drip type IV feed or with an ambulatory system which is independent of gravity. A new quantizer for providing fluid flow independent of gravity is also disclosed.

대표청구항 ▼

A quantizer for delivering fluid in discrete units, comprising in combination, a container, a source of pressurized fluid, diaphragm means fixed to one end of said container capable of expanding in one direction, inlet valve means connected to said source of pressurized fluid, outlet valve means, fi

A quantizer for delivering fluid in discrete units, comprising in combination, a container, a source of pressurized fluid, diaphragm means fixed to one end of said container capable of expanding in one direction, inlet valve means connected to said source of pressurized fluid, outlet valve means, first means disposed within said container means having a first position closing said outlet valve means and opening said inlet valve means and a second position opening said outlet valve means and closing said inlet valve means, spring means disposed within said container means for moving said first means from said first position to said second position each time sufficient fluid has been introduced into said container means to expand said container means a predetermined amount thereby forcing a discrete amount of fluid through said outlet valve means, second means moving said first means back to said first position each time said discrete amount of fluid is emitted through said outlet valve means.