![]() Canisters may either be replaceable or contained inside a disposable NPWT unit. Exudate ManagementĬanister collection is a method of exudate management common to many NPWT devices, and is very effective in managing wounds with moderate to heavy exudate some devices offer more than one canister capacity. Others boast a much wider range of indications, spanning nearly every imaginable wound etiology. Some units are specifically geared for single purposes such as post-surgical incision management, or very lightly exuding wounds. The absence of an electrical pump allows for silent delivery of therapy, as well as a smaller, lighter device. Non-powered NPWT devices use the mechanical technology of energy from a spring mechanism, which reduces air density within an enclosure in a controlled manner by offering a continuous, controlled vacuum for exudate. ![]() These devices are sometimes heavier, larger, and louder due to presence of an electronic pump mechanism. Powered NPWT devices may operate on a rechargeable battery, disposable batteries, or on outlet power. Recently, we've reviewed application and documentation strategies for negative pressure wound therapy (NPWT), but what about navigating the different systems currently on the market? We know all devices have the mechanism of negative pressure in common, but what other characteristics need to be considered when selecting the right device for your patient? In this installment, we will become better acquainted with the characteristics of NPWT devices and how they differ for various systems. Part 3 in a series exploring topics related to negative pressure wound therapy application.
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