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Title: Device for negative pressure wound therapy in low-resource regions: open-source description and bench test evaluation
Author: Farré, Ramon
Rodriguez-Lazaro MA
González Martín, Julián
Castro, Pedro
Hospital, Teresa
Compta, Yaroslau
Solana, Gorka
Gozal, David
Otero Díaz, Jorge
Keywords: Ferides i lesions
Aparells i instruments mèdics
Països en vies de desenvolupament
Ajuda econòmica
Wounds and injuries
Medical instruments and apparatus
Wound healing
Developing countries
Economic assistance
Issue Date: 27-Apr-2022
Publisher: MDPI
Abstract: Background: Negative (vacuum) pressure therapy promotes wound healing. However, commercially available devices are unaffordable to most potential users in low- and middle-income countries (LMICs), limiting access to many patients who could benefit from this treatment. This study aimed to design and test a cheap and easy-to-build negative pressure device and provide its detailed open-source description, thereby enabling free replication. Methods: the negative pressure device was built using off-the-shelf materials available via e-commerce and was based on a small pump, a pressure transducer, and the simplest Arduino controller with a digital display (total retail cost ≤ 75 US$). The device allows the user to set any therapeutic range of intermittent negative pressure and has two independent safety mechanisms. The performance of the low-cost device was carefully tested on the bench using a phantom wound, producing a realistic exudate flow rate. Results: the device generates the pressure patterns set by the user (25-175 mmHg of vacuum pressure, 0-60 min periods) and can drain exudate flows within the clinical range (up to 1 L/h). Conclusions: a novel, low-cost, easy-to-build negative pressure device for wound healing displays excellent technical performance. The open-source hardware description provided here, which allows for free replication and use in LMICs, will facilitate the application and wider utilization of this therapy to patients.
Note: Reproducció del document publicat a:
It is part of: Journal of Clinical Medicine, 2022, vol. 11, num. 5, p. 589
Related resource:
ISSN: 2077-0383
Appears in Collections:Articles publicats en revistes (IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer)
Articles publicats en revistes (Fonaments Clínics)

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