Preliminary development of an advanced modular pressure relief cushion: Testing and user evaluation

Freeto, Tyler; Mitchell, SJ; Bogie, Kath M.

doi:10.1016/j.jtv.2017.03.001

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…Dentro do contexto de projeto para à acessibilidade, uma ferramenta amplamente utilizada no meio científico é a métrica de satisfação do usuário, observada em diferentes estudos (KOZLOWSKI et al, 2017;FREETO, MITCHELL, BOGIE, 2018;MENEZES et al, 2020;. Um instrumento de avaliação relacionado aos dispositivos de Tecnologia Assistiva é o questionário de Avaliação de Satisfação do usuário com Tecnologia Assistiva de Quebec (QUEST 2.0) (DEMERS; WEISS-LAMBROU; SKA, 2002), o qual aborda a satisfação com o dispositivo e serviços a partir de 12 itens de satisfação, a saber: dimensões, peso, ajustes, segurança, durabilidade, facilidade de uso, conforto, eficácia, serviços profissionais, entrega, serviços de acompanhamento e reparo.…”

Section: Design Para Acessibilidade E Satisfação Do Usuáriounclassified

Design: desafios da pesquisa

2023

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O campo científico do Design, por suas características transdisciplinares e sua abrangência (quase) ilimitada tem se desenvolvido no Brasil e no mundo, de forma cada vez mais robusta e, ao mesmo tempo, instigante. A robustez da área ocorre, especialmente, em decorrência do estabelecimento de questionamentos cada vez mais representativos das demandas sociais e tecnológicas de nossa sociedade; de proposições cada vez mais assertivas e fundamentadas em teorias que orbitam a área; e por práticas e técnicas metodológicas embasadas em outras estruturas já estabelecidas da pesquisa científica. Por outro lado, o aspecto “desafiador” é inerente à área, a qual necessita apresentar respostas cada vez mais importantes para a sociedade humana e os ecossistemas mundiais, ao mesmo tempo que sua objetividade e impacto aplicado precisam apresentar cada vez mais eficácia, efetividade e eficiência. Os textos aqui apresentados envolvem robustez teórica, com desafios metodológicos e de exploração das áreas adjacentes ao design e foram produzidos pelos alunos e orientadores do Programa de Pós-graduação em Design da Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP-Bauru (PPGDesign-UNESP).

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Section: Design Para Acessibilidade E Satisfação Do Usuáriounclassified

Design: desafios da pesquisa

2023

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“…Yu et al 24 propose an active module based on the concept that the interface pressure can be changed with different supporting shapes. Freeto et al 25 show a comparison among three commercial products and two versions of a developed prototype presented in the paper. The three commercial products are produced by two different companies and are two products of the ROHO ® cushions 26 and one product of the JAY ® cushion.…”

Section: Seat Cushion: Modelling and Designmentioning

confidence: 99%

Modelling, design and control of a new seat-cushion for pressure ulcers prevention

Mannella

Bellusci

Graziani

et al. 2022

Proc Inst Mech Eng H

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Pressure ulcers are a frequent complication in patients having limited activity and mobility (e.g., elderly people, spinal cord injury patients, people with disabilities, etc.). The aim of this work is the conceptual design, modelling and control of a new seat cushion for pressure ulcers prevention. The whole system (constituted by the seat cushion equipped with a real-time pressure mapping with closed-loop control) is designed to identify the critical points on the human skin, before pressure ulcers creation, and to be able to distribute the contact pressure between the human and cushion avoiding wound creation. The seat cushion is constituted by soft air-cells actuated by air flow. To define the shape and size of the soft air-cells, finite element simulations are carried out, analysing the internal volume reduction with external loads application to reproduce the variable stiffness. The data obtained by finite element analysis are used to simulate inflation and deflation of the soft bubble air-cells. Finally, the control systems of a single air-cell and of the whole cushion are designed and simulated. The novelty of our work consists in the conception of a seat cushion able to recognise higher and lower risk zones of pressure ulcer generation on the human skin and to provide compensation automatically. This work can therefore be considered in line with the sustainable development goals recently launched by the EU Commission.

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“…The mechanical assessments were performed to assess displacement, dynamic fatigue and recovery characteristics of the developed cushion as per ISO 16480-6 standards (ISO 16840-6, 2014). These tested values were compared with three widely available high-performance cushions; RohoV R cushions, Jay V R gel type of cushion and foam-based cushion (Freeto et al, 2017). And, also the interface pressure measurement of the developed cushion was measured and compared with other types of cushions.…”

Section: Validation Of Customized Support Surfacementioning

confidence: 99%

Development of novel customized pressure distribution surface for reduction of pressure ulcers using additive manufacturing technology

Arumugam

Ranganathan²

2022

RPJ

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Purpose This research aims to focus on developing a customized support surface using additive manufacturing (AM) for effective pressure relief for patients who are in bed or wheelchair suffering from pressure ulcers (PU). Design/methodology/approach A novel customized support surface is developed using AM technology incorporated with magnetic levitation and ball and socket mechanisms. Magnetic levitation provides cushioning effect for the developed cushion to users who are sitting in a wheelchair and increases the rate of healing. The ball and socket mechanism provides the user body's self-adaptive mechanism and reduces shear and friction forces between the surfaces of the additive manufactured cushion and the human buttocks. Findings From the results of ISO 16480-6 biomechanical standardized tests, the additive manufactured support surface performed better than, or on par with, the most widely available commercial cushions. It is evident that the developed cushion’s peak pressure values are lower when compared with other cushions. The overall efficiency of the developed cushion was qualitatively reported; 67% of people felt it was excellent and 22% of people responded as good and 11% were satisfactory. Henceforth, the overall effectiveness of the developed support surface provides a better experience to the end-user in the view of PU reduction. Originality/value A developed additive manufactured customized support surface will be an alternative approach for the reduction of PU, and it overcomes the drawbacks faced by the currently available cushions.

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Preliminary development of an advanced modular pressure relief cushion: Testing and user evaluation

Cited by 5 publications

References 13 publications

Design: desafios da pesquisa

Design: desafios da pesquisa

Modelling, design and control of a new seat-cushion for pressure ulcers prevention

Development of novel customized pressure distribution surface for reduction of pressure ulcers using additive manufacturing technology

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