An over-tube of the present invention is an over-tube which guides a device having an insertion section to be inserted into a body of a patient, when inserting the insertion section into or retracting the insertion section from the body of the patient, wherein: a gas-supplying passage is defined between...http://www.google.fr/patents/US20070163597?utm_source=gb-gplus-shareBrevet US20070163597 - Overtube
Numéro de demande: 11/331,976 Numéro de publication: US 2007/0163597 A1 Date de dépôt: 13 janv. 2006 Brevet délivré: US8225794 ( Date de délivrance 24 juil. 2012)
