SW-SiStA2: A New-Generation Semi-Wearable Device for Sit-to-Stand Assistance

IF 0.8 4区 医学 Q4 ENGINEERING, BIOMEDICAL Journal of Medical Devices-Transactions of the Asme Pub Date : 2023-04-17 DOI:10.1115/1.4062337
M. Afsar, Md Ashiquzzaman, D. Martelli, Xiangrong Shen
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引用次数: 1

Abstract

Mobility impairment is a major problem that affects the quality of life of numerous older adults. With impaired mobility, such individuals usually have significant difficulty in standing up from a seated position, and thus often suffer from the lack of physical activities in their daily life. To address this problem, the authors present a new assistive device, namely Semi-Wearable Sit-to-Stand Assist Generation-2 (SW-SiStA2), in this paper. Similar to the original (first generation) SW-SiStA, this novel semi-wearable device can be easily attached to the user to provide sit-to-stand assistance, and can also be easily detached after reaching the standing posture to facilitate the subsequent ambulation. The new SW-SiStA2 is powered with a remote-release gas spring, which serves the dual purpose of actuation and energy storage (i.e., storing the energy accumulated during compression and powering the sit-to-stand assistance through extension). The remote release feature enables a user to easily control the SW-SiStA2 assistance through the locking and unlocking of the gas spring. The SW-SiStA2 was experimentally tested with human participants. Under the device's assistance, the participants were able to stand up much more easily, with significant reduction (up to 28% compared with the unassisted condition) of the muscle efforts in the process.
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SW-SiStA2:新一代半可穿戴式坐立辅助设备
行动障碍是影响许多老年人生活质量的一个主要问题。由于行动能力受损,这些人通常很难从坐姿站起来,因此在日常生活中经常缺乏身体活动。为了解决这一问题,作者在本文中提出了一种新的辅助装置,即半可穿戴式坐立辅助第二代(SW-SiStA2)。与最初的(第一代)SW-SiStA类似,这种新型的半可穿戴设备可以很容易地附着在用户身上,提供坐立辅助,也可以在达到站立姿势后很容易地分离,以方便后续的行走。新型SW-SiStA2由远程释放气弹簧驱动,具有驱动和能量存储的双重功能(即,存储压缩过程中积累的能量,并通过延伸为坐立辅助提供动力)。远程释放功能使用户可以通过气弹簧的锁定和解锁轻松控制SW-SiStA2辅助装置。SW-SiStA2在人类参与者中进行了实验测试。在设备的帮助下,参与者能够更容易地站起来,在此过程中肌肉的工作量显著减少(与没有辅助的情况相比,减少了28%)。
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来源期刊
CiteScore
1.80
自引率
11.10%
发文量
56
审稿时长
6-12 weeks
期刊介绍: The Journal of Medical Devices presents papers on medical devices that improve diagnostic, interventional and therapeutic treatments focusing on applied research and the development of new medical devices or instrumentation. It provides special coverage of novel devices that allow new surgical strategies, new methods of drug delivery, or possible reductions in the complexity, cost, or adverse results of health care. The Design Innovation category features papers focusing on novel devices, including papers with limited clinical or engineering results. The Medical Device News section provides coverage of advances, trends, and events.
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