In this study, the investigators want to find out whether robot-assisted bronchoscopy also works with moderate sedation (Propofol), as is already used in standard bronchoscopies. The study is being conducted as a pilot study. This means that it is an initial test run for a scientific investigation. The investigators are testing on a small scale whether the intervention works as predicted before a larger study is conducted.

Inclusion Criteria:

• informed consent signed by the subject
• aged at least 18 years
• scheduled for bronchoscopy with moderate sedation and tracheal intubation in order to obtain at least 1 specimens of the lung via transbronchial biopsy
• necessary periinterventional laboratory examinations needed for the bronchoscopy
• judgement of the subject

Exclusion Criteria:

• endobronchial lesion causing lobar atelectasis
• inability or contraindications to undergo bronchoscopy (e.g. severe cardiopulmonary diseases, coagulation disorders, intolerance to anesthesia or endoscopic operation, psychiatric disorders or severe neurosis)
• pregnant or lactating women