IIT-D en­gi­neers de­sign low cost pros­thetic knee joint

BioSpectrum (India) - - SCIENCE NEWS -

Re­searchers at the In­dian In­sti­tute of Tech­nol­ogy, Delhi have de­signed and fab­ri­cated a low-cost, and light-weight poly­meric poly­cen­tric pros­thetic knee joint with en­ergy-ef­fi­cient gait op­tion. The re­searchers took seven years to come up with this knee joint de­sign. It has been tested clin­i­cally at Depart­ment of Phys­i­cal Medicine and Re­ha­bil­i­ta­tion, Gov­ern­ment Med­i­cal Col­lege, Thiruvananthapuram. Ac­cord­ing to the re­searchers, the re­sult showed that the pa­tient us­ing the new pros­thetic walked closer to nat­u­ral gait pat­tern com­pared to the con­ven­tional ones. The en­ergy ex­pen­di­ture was also re­duced. The pros­thetic is made up mainly of poly­meric ma­te­rial through in­jec­tion mold­ing tech­nique and is poly­cen­tric in de­sign con­sist­ing of an up­per part, a lower part with py­lon adap­tor, a mid­dle bar, a side bar and con­nect­ing bolts. It weighs a mere 350 grams.

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