Correcting an Incorrect English Sentence: 'How His Medical Instruments to Use'

The original sentence, 'how his medical instruments to use', is grammatically incorrect. The correct order should be 'how to use his medical instruments'. This phrase should be incorporated into a complete sentence. For example: 'He showed me how to use his medical instruments.' In this corrected sentence, 'how to use his medical instruments' functions as a noun clause, serving as the object of the verb 'showed'.