Assertion: speculum | /r/HasProperty | inserted in its longitudinal direction
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Source sentences:
text: The speculum according to the invention can be inserted in its longitudinal direction, with the spoon blades in the closed position and tilted through 90° with respect to the position ready for spreading, into the mouth of the vagina by the user herself and then turned through a quarter turn in order then to be slid in further until the housing is held in place by the muscle tissue located at the mouth of the vagina.