Surgery – Endoscope – With tool carried on endoscope or auxillary channel therefore
Reexamination Certificate
2008-08-12
2011-12-13
Leubecker, John P (Department: 3779)
Surgery
Endoscope
With tool carried on endoscope or auxillary channel therefore
C600S104000, C604S159000
Reexamination Certificate
active
08075475
ABSTRACT:
According to the present invention, there is provided an endoscope system including: an endoscope having an elongated insertion portion; a medical instrument configured to be inserted in a channel of the insertion portion of the endoscope and to have an elongated flexible sheath; and an advancing and retracting apparatus configured to advance and retract the sheath of the medical instrument in the channel with two rollers, wherein the sheath of the medical instrument is configured to have an outer diameter larger than the distance between the roller surfaces of the two rollers, and to have a frictional resistance increasing unit for increasing frictional resistance between the respective roller surfaces and the outer peripheral surface of the sheath in contact with the respective roller surfaces in a state where the sheath is inserted between the two rollers.
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Honda Kazuki
Ichikawa Hiroaki
Komiya Takaaki
Kura Yasuhito
Murakami Kazushi
Leubecker John P
Nia Alireza
Olympus Medical Systems Corp.
Scully , Scott, Murphy & Presser, P.C.
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