A device utilizable with an endoscope to promote cleanliness comprises a substantially thin-walled elongate tubular sheath made of a flexible material, the sheath having a use configuration with an inner diameter larger than an outer diameter of an insertion member of the endoscope, whereby...http://www.google.fr/patents/US5746694?utm_source=gb-gplus-shareBrevet US5746694 - Endoscope biopsy channel liner and associated method
Endoscope biopsy channel liner and associated method
