Improvements in the clinical instruments for exploration of matrix and internal organs (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the clinical instruments for examination of the matrix and internal organs characterized by the provision of a vacuum forming device acting as an absorption bell and a mechanism of joint action for firm support of the patient's matrix in a certain position as well as an opening mechanism constituted by the absorption hood itself with means to prevent the penetration of air through the mouth of the matrix. (Machine-translation by Google Translate, not legally binding)