- Tytuł:
- Kinematic analysis of instantaneous centre of rotation of prosthetic knee mechanisms
- Autorzy:
-
Grodzka, Kinga
Sajewicz, Eugeniusz
Dziemianowicz, Marcin - Powiązania:
- https://bibliotekanauki.pl/chapters/2215322.pdf
- Data publikacji:
- 2022
- Wydawca:
- Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
- Tematy:
-
knee prosthesis
instantaneous center of rotation
four-bar linkage - Opis:
- The purpose of this work was to determine the influence of kinematic evidence, based on the trajectories of the instantaneous center of rotation (ICR) on the optimization of the functionality of selected prosthetic knee mechanisms. For the research 11 commercially used knees based on the articulated quadrilateral mechanism were used to visualize the operation of mechanisms with two methods: analytical and graphic. The generated paths were compared in terms of position changeability and shape. It was found that depending on the position of the ICR related to the axes of the mechanism, prosthetic knees obtained different level of stability and energy expenditure. The results have also shown that ICR point position and shapes of its trajectories are variable for particular classes of mechanisms. An analysis of the obtained results suggests that manipulation of the position of the instantaneous center of rotation by a suitable design of the linkages length of the mechanism enable to achieve the desired features, corresponding to the real needs of patients.
- Źródło:
-
Advances in biomedical engineering; 55-70
9788367185400 - Dostawca treści:
- Biblioteka Nauki
Artykuł