Improved device for artificial pneumothorax. (Machine-translation by Google Translate, not legally binding)

摘要

An improved apparatus for artificial pneumoterax characterized in that the reservoir that makes pump consists of a single body formed by two containers located concentrically one inside another communicating the inside with the outside by an opening that has in its lower part and carrying in its upper part a tube that goes through the external container to the outside. (Machine-translation by Google Translate, not legally binding)