Hand assistive device with suction cup (HADS) technology for poststroke patients

Area of Science:

• Neurology
• Rehabilitation Engineering
• Biomedical Devices

Background:

• Stroke commonly causes upper extremity paralysis, impacting daily living activities.
• Advanced technologies, including wearable devices, are crucial for post-stroke hand function recovery.
• Improving grasping ability is a key goal in stroke rehabilitation.

Purpose of the Study:

• To develop and evaluate a novel hybrid rehabilitation functional assist device for post-stroke patients.
• To enhance hand grip strength and functional ability in daily grasping tasks.
• To assess the device's efficacy using standardized clinical assessments.

Main Methods:

• Developed a rehabilitation device integrating flexion/extension mechanisms with suction cup technology.
• Recruited ten post-stroke hemiplegia patients for a functional assessment study.
• Validated outcomes using the Toronto Rehabilitation Institute - Hand Functional Test (TRI-HFT), Chedoke Arm Hand Activity Inventory (CAHAI-9), and Fugl-Meyer Assessment (FMA).

Main Results:

• Significant improvements observed across all three clinical tests (TRI-HFT, CAHAI-9, FMA) with p-values < 0.05.
• Mean scores increased substantially: TRI-HFT (14.5 to 25), CAHAI-9 (5.4 to 10), FMA (9.6 to 17).
• Participants reported an average feedback score of 3.8/5, noting ability to perform tasks previously impossible without the device.

Conclusions:

• The hybrid rehabilitation device significantly enhances impaired hand functionality in post-stroke patients.
• The technology offers a promising solution for improving grasping capabilities and independence in daily activities.
• The device demonstrated clinical effectiveness and positive user feedback, supporting its role in stroke rehabilitation.