Original scientific paper
https://doi.org/10.31306/s.62.3.2
Determination of parameters for the development of a rehabilitation device for patients with finger paresis
Jelena Kamenar
; Prostoria d.o.o., Sv. Križ Začretje, Hrvatska
Daria Ćurko
; Fakultet strojarstva i brodogradnje, Zagreb, Hrvatska
Tanja Jurčević Lulić
; Fakultet strojarstva i brodogradnje, Zagreb, Hrvatska
Jasna Leder Horina
; Fakultet strojarstva i brodogradnje, Zagreb, Hrvatska
Abstract
Due to various diseases and injuries of the hand, rehabilitation is necessary in order to achieve mobility, coordination, and restoration of the function of the hand. Rehabilitation of patients with finger paresis, which is the result of a stroke, is a procedure that most often involves flexion and extension of the fingers of the hand, while the therapy can be performed using rehabilitation devices. During flexion and extension of the fingers, moments that occur in the joints are indicators of the activity of individual muscles. Knowing the necessary moments and forces is essential for developing a rehabilitation device. When designing rehabilitation devices, it is possible to analyse, at an early stage and using a computer model, the device characteristics, and efficiency of interaction of the device and the body part that is in need of rehabilitation. The aim of this research was to develop a biomechanical model of a human hand that describes flexural and extensional motion and behaviour of the hand when interacting with a rehabilitation device and enables the analysis of the device's characteristics at an early stage of development. The required kinematic data were determined by measurement in a biomechanical laboratory. By using the developed mathematical model, it is possible to determine the forces and moments in the joints, thus evaluating the activities of individual muscles. Based on the desired muscle activity, this allows an assessment of the parameter of the required load that needs to be provided by the device at an early stage in the design of the rehabilitation device.
Keywords
finger paresis, rehabilitation device, hand biomechanics, biomechanical model, design parameters
Hrčak ID:
244420
URI
Publication date:
2.10.2020.
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