| Autor: |
Hammoody, Shaymaa S., Muhammad, Ahmed K., Resan, Kadhim K. |
| Předmět: |
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| Zdroj: |
Library of Progress-Library Science, Information Technology & Computer; Jul-Dec2024, Vol. 44 Issue 2s, p1160-1168, 9p |
| Abstrakt: |
Lower limb amputees often experience significant difficulties, including discomfort and pain caused by traditional prosthetic sockets. Osseointegration, a surgical procedure that directly attaches the prosthetic limb to the remaining bone, provides a more stable and functional alternative. However, it also increases the risk of bone fracture or system failure in the osseointegrated limb under high forces or sudden impact. This research developed a body-mounted protective component for osseointegrated prostheses. The component is made of a combination of Ti6Al4V alloy (identical to the osseointegration component) and a ductile cast iron pin containing a pre-designed notch. This notch ensures controlled fracture within the protective component, preventing catastrophic failure and component separation. Chemical composition, Tensile test, gait analysis and numerical analysis by using Solidwork were conducted to evaluate the component's performance. The tests and analysis showed that the ductile cast iron pin is suitable for the protection component due to its high ability to absorb shocks and withstand high loads. However, it is less durable than the rest of the components of the protection system. Gait analysis confirmed that the toe-off phase exhibits the highest Von Mises stress compared to heel strike. While this translates to a reduced safety factor for the pin assembly, the overall design remains demonstrably safe. The results of this education Determine the feasibility of using a protective component to improve the safety of osseointegrated prosthetic limbs. The proposed design is simple and effective, and it has the potential to reduce the risk of fracture and develop the quality of life for amputees. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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