IPX standards: What they are and how they can affect medical-product design

Cassidy, Tim
July 2004
Portable Design;Jul2004, Vol. 10 Issue 7, p17
The medical instruments and apparatus industry adopts IPX standards that regulate the amount of water or solid ingress an electronic or electrical device must be able to withstand. The need for reliable power in these circumstances is imperative because the products are often monitoring a patient's condition, delivering medication, or performing other critical tasks. The industry primarily uses two types of batteries: lead-acid and nickel-metal hydride (NiMH). Lead acid batteries can provide a substantial amount of power and are extremely reliable, both critical factors in medical situations. NiMH batteries offer many of the same characteristics of lead-acid batteries, including high power, high reliability, and the ability to respond well to extended periods in standby mode.


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