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Urządzenie monitoruje proces gojenia złamań kości

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Zespół badaczy z University of Arizona opracował bezprzewodowe urządzenie o nazwie Osseosurface, które wrasta w powierzchnię kości, monitoruje jej stan i proces gojenia złamań. Rozwiązanie może w przyszłości zapewnić zindywidualizowaną opiekę ortopedyczną i przyspieszyć rehabilitację.

Dr Philipp Gutruf, współautor badania, zaznaczył, że możliwość monitorowania stanu zdrowia układu mięśniowo-szkieletowego jest bardzo istotna. Pewnego dnia, jego zdaniem, urządzenie może przyczynić się do poprawy stanu zdrowia m.in. pacjentów z osteoporozą.

Wsparcie dla klinicystów

Urządzenie może zostać przymocowane m.in. do złamanej kości, by monitorować jej proces gojenia, np. w przypadku złamania. Rozwiązanie może być przydatne u pacjentów cierpiących na osteoporozę, u których złamania kości mogą wystąpić nawet po niewielkim urazie.

Możliwość kontrolowania procesu gojenia, wpłynie na decyzje klinicystów dotyczące dopasowywania jak najlepszego leczenia. Badacze wyjaśniają, że preparaty wpływające na poprawę gojenia mogą powodować w niektórych przypadkach skutki uboczne. Stałe monitorowanie stanu kości pozwoliłoby więc na podejmowanie decyzji np. dotyczących dawkowania tych leków.

Źródło: University of Arizona

Urządzenie posłuży do długoterminowych pomiarów

Naukowcy podkreślają, że istotą działania urządzenia było uniknięcie podrażnienia tkanki otaczającej kości i przemieszczania się wynalazku. Stąd zaprojektowano bardzo cienką strukturę, mniej więcej grubości kartki papieru. Dzięki temu urządzenie dopasowuje się do krzywizny kości, tworząc szczelne połączenie. Wynalazek nie potrzebuje również baterii, ponieważ wykorzystuje technologię power casting i komunikację NFC.

Kolejnym wyzwaniem było opracowanie bezpiecznych metod przymocowania urządzenia do kości. Badacze wykluczali substancje na bazie tradycyjnego kleju, ponieważ wówczas urządzenie odpadłoby od kości po kilku miesiącach. Aby sprostać temu wyzwaniu, współautor badania i członek Instytutu BIO5, John Szivek — profesor chirurgii ortopedycznej i inżynierii biomedycznej — opracował klej zawierający cząsteczki wapnia o strukturze atomowej podobnej do komórek kostnych. Dzięki temu kość „myśli”, że urządzenie jest jej stałą strukturą. Jak podkreśla ekspert – takie rozwiązanie pozwala na utworzenie stałego połączenia wynalazku z kością i wykonywanie pomiarów przez długi czas.

Źrodło: University of Arizona

 

Przeczytaj także: Jakie powikłania mogą wystąpić po złamaniu kości?

 

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