Novel Test Method for the Evaluation of Fluid Leakage at the Glove-Gown Interface and Investigation of Test Parameters

Source avec lien : Journal of the American College of Surgeons, 227(6) 12/1/2018. 10.1016/j.jamcollsurg.2018.09.016

L’exposition aux liquides sanguins / corporels des patients peut avoir un impact important sur la vie lors de la prise en charge de patients atteints de maladies infectieuses. Bien que l’interface robe-gant soit considérée comme l’un des points faibles du système d’ensemble de protection, les normes existantes ne fournissent pas beaucoup d’indications sur les stratégies permettant de réduire au minimum les écarts. Une nouvelle méthode d’essai avec un bras robotique, capable de simuler les mouvements du bras du personnel de santé lors de l’exposition à des liquides, a été mise au point pour déterminer les fuites à l’interface gants-blouses. Cet article explique la méthode d’essai et étudie l’effet du mouvement, le type d’exposition, la durée de l’exposition, la durée de la procédure et l’existence d’une pression sur la quantité de fuite de liquide à l’interface gants-blouses.

Background

Exposure to patients’ blood/body fluids could be life-affecting, when providing care to patients with infectious diseases. Although the glove-gown interface is considered one of the weakest points of the protective ensemble system, there is a lack of research, and existing standards do not provide much guidance on strategies to minimize gaps between the gowns and gloves. Currently, there is no known standard test method to evaluate fluid leakage or assess performance improvements with new gowns/gloves.

Study Design

A novel test method with a robotic arm, which has the capability to simulate health care personnel’s arm movements during fluid exposure, was developed to determine the leakage at the glove-gown interface. This article explains the test method and investigates the effect of movement, exposure type, exposure duration, procedure duration, and existence of pressure on the amount of leaked fluid at the glove-gown interface.

Results

Test results suggest that, with the exception of procedure duration, all parameters significantly affected the amount of fluid leaked at the glove-gown interface. Leakage was higher for soaking when compared to spraying, increased as the exposure duration increased, and was greater with the application of pressure.

Conclusions

The novel method developed in this study could be used by manufacturers of personal protective equipment to evaluate their products. Standard development organizations could adapt this test method in their specifications, testing standards, and guidelines.

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