Importance

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Abstract

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 the sheath may be removably disposed about such insertion member to substantially surround same prior to insertion of the insertion member into a patient. A liner element extends parallel to the sheath and inside the sheath at least along a distal end portion of the liner element. The liner element is insertable into a biopsy channel of the insertion member of the endoscope. The sheath and the liner element are attached at their distal ends by a transparent cap member to form a germ-tight seal. Biopsy channels expandable from a collapsed configuration to receive endoscopic surgical instruments during an operation are provided in or on the sheath.

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First Claim