Abstract: An endoscope device includes an endoscope tube having a forward head piece and a flexible eversion tube for moving the head piece into a channel-like body cavity by means of fluid pressure. The eversion tube has an outer portion; a turning portion engaging the head piece; and a rearwardly extending inner portion. A first fluid pressure is exerted in a space between the outer portion and the inner portion of the eversion tube, which space is sealed from ambient surroundings. A second fluid pressure is exerted in a space between the endoscope tube and a rearwardly extending inner portion of the eversion tube.
Type:
Grant
Filed:
December 24, 1991
Date of Patent:
November 9, 1993
Assignee:
STM Medizintechnik Starnberg GmbH
Inventors:
Alexander Bob, Konstantin Bob, Andreas Grundl