Design and User Evaluation of a Wheelchair Mounted Robotic Assisted Transfer Device

Grindle, Garrett G.; Wang, Hongwu; Jeannis, Hervens; Teodorski, Emily; Cooper, Rory A.

doi:10.1155/2015/198476

Cited by 30 publications

(16 citation statements)

References 21 publications

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“…Grindles et al [13] have seen that between the years 1973 and 1987, 770 lethal wheelchair-related accidents were reported to the US Consumer Products Safety Commission. 8.1%…”

Section: Challenges Related To Wheelchair Usementioning

confidence: 99%

Wanting a Life in Decency!—A Qualitative Study from Experienced Electric Wheelchairs Users’ perspective

Kristiansen¹

2018

OJN

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Background: The functionality and the safety of the electric wheelchairs were essential for users' everyday life. Some evidence indicated that the wheelchair Per Se highly influenced users' occupational life, their personal identity and social life; further, the wheelchair became an extension of the body and more than a technical device. Besides, there was still both environmental and self-efficacy or/and mental health factors obstacles for full social participation. Even so, there was to some extent stigma related to being a wheelchair user. There was a need to reflect users' perspective on being depended on electric wheelchair. The aim, accordingly, was to describe and to get a deeper insight into electric wheelchairs users' perspective and experiences of utilizing this device; a qualitative design with an inductive approach was used. Method: Qualitative latent and interpretative content analysis [1] [2] was used after repeated face-to-face semi-structured interviews with three experienced Swedish electric wheelchair users during the autumn 2017. Findings: The findings showed a high degree of dependability of the assistants that supported the users, and of the quality of that working relationship. The findings were formulated, abstracted and interpreted in several steps. It showed one theme of meaning: "Living in a space shifting between potential violation of or respect for human dignity". Conclusion: The study showed that electric wheelchair users were relatively content with their lives as well as with their devices in turns of mobility and accessibility, but the meaning of their narrations showed a life at constant risk of having the respect of human rights and human respect violated. Besides, the importance of having access to good and high quality devices, good staffing, and environmental support, all in concordance with human rights, the clinical and practical implications of this study nar-

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“…Grindles et al [13] have seen that between the years 1973 and 1987, 770 lethal wheelchair-related accidents were reported to the US Consumer Products Safety Commission. 8.1%…”

Section: Challenges Related To Wheelchair Usementioning

confidence: 99%

Wanting a Life in Decency!—A Qualitative Study from Experienced Electric Wheelchairs Users’ perspective

Kristiansen¹

2018

OJN

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“…9 Many people with disabilities face to a Permobil C500 EPW for easier transport and is rated for transferring a person weighing 220 kg. 15 The caregiver controls the RATD by applying force to an instrumented handle, which only requires a maximum force of 20 N in any direction due to an algorithm that takes in the readings from the instrumented handle and actuates one joint at a time. 16 Wang et al developed equations to determine the stability of the system and to keep the EPW from tipping due to the weight placed on the RATD.…”

Section: Initial Designmentioning

confidence: 99%

Further Development of a Robotic-Assisted Transfer Device

Burkman

Grindle

Wang

et al. 2017

Topics in Spinal Cord Injury Rehabilitation

Self Cite

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The task of performing transfers, such as from a wheelchair to a bed, has a high risk of injury to both the caregiver and the person being transferred. Although mechanical transfer devices can reduce these risks, these devices are not meant for use in the community and they still place strain on the caregiver when used. The aim of this study is to describe feedback gathered from focus groups of potential users of the Robotic-Assisted Transfer Device (RATD) and describe design changes aimed at preparing the device for the next step in the development process. The RATD was transferred to a newer electric-powered wheelchair (EPW), key components were redesigned, and the control program was updated to increase the safety of the device. Two focus groups, one consisting of people with disabilities and the other consisting of clinicians and caregivers, were conducted to gather feedback from potential users. Error checking, safety zones, a motor brake, and a new track helped increase the safety of the device. Sixty-three percent of the people with disabilities and 83% of caregivers surveyed said they would use the device. The results from the focus groups were positive and the design changes were successful, but more development is needed before the RATD can be marketed.

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“…Research on patient transfer-assisted systems has been conducted for some time [5][6][7]. Initially, caregivers used bed sheets and soft boards as media to transfer patients between beds.…”

Section: Introductionmentioning

confidence: 99%

Structural Design and Preliminary Tests of a Novel Patient Transfer Apparatus for Medical Scenarios

Tian

Wang

Zhang

et al. 2021

Journal of Healthcare Engineering

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Patient transfer has always been a difficult problem, usually requiring multiple caregivers to work together, which is time consuming and can easily cause secondary injuries to the patient. In addition, with the crisis of COVID-19, the issue of patient transfer is even more critical, as caregivers are at a high risk of infection, causing significant damage to healthcare resources. In this paper, a patient transfer assist system named E-pat-plus (Easy Patient Transfer plus) has been proposed; it can assist caregivers in transferring patients, reduce direct contact between them, and avoid secondary injuries. In the mechanical structure of this apparatus, a novel five-gear assembly module and a synchronous belt pulley set are proposed; they are the key points to the basic functional realization of the device and can reduce the cost of the prototype. Furthermore, a fuzzy (proportion-integration-differentiation) PID-based cross-coupling control strategy is applied to the apparatus to ensure the stability and safety of the operation. Finally, some preliminary experiments, including current experiments and error experiments, are carried out to verify the reliability of the device and lay the foundation for clinical tests.

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Design and User Evaluation of a Wheelchair Mounted Robotic Assisted Transfer Device

Cited by 30 publications

References 21 publications

Wanting a Life in Decency!—A Qualitative Study from Experienced Electric Wheelchairs Users’ perspective

Wanting a Life in Decency!—A Qualitative Study from Experienced Electric Wheelchairs Users’ perspective

Further Development of a Robotic-Assisted Transfer Device

Structural Design and Preliminary Tests of a Novel Patient Transfer Apparatus for Medical Scenarios

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