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May 1971, Vol 102, No. 5 >

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ARTICLE | May 1971

A New Even-Flow Intravenous Infusion Clamp

Eric W. Fonkalsrud, MD; Karon Carpenter, RN; Marvin Adelberg, PhD
Arch Surg. 1971;102(5):530-531. doi:10.1001/archsurg.1971.01350050096027.
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ABSTRACT

A new disposable clamp for monitoring intravenous infusion rates has been evaluated in a series of 20 patients. This clamp takes into account the complex physical characteristics of plastic tubing under stress and provides less than a 10% change in infusion rate over a one-hour period. In contrast the most commonly used commercial roller infusion clamp permits an average decrease in flow rate of greater than 50% in one hour. The new clamp has a V-shaped trough on a noninclined platform over which the compression wheel rolls. A steady even flow of intravenous fluid administration as given by the new clamp is highly desirable, particularly when medications, such as vasopressors, must be delivered at a precise rate.

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