Article History
Received: 30 November 2018
Accepted: 21 March 2019
First Online: 6 April 2019
Compliance with ethical standards
:
: The first author is, together with Karl Storz, the developer of the instrument. Royalties go to the employer/hospital. Therefore, there is no financial conflict of interest of the first or other two authors.
: Written informed consent was obtained from the patient for publication of this video article and any accompanying images.