Olympus Optical Company, Ltd.

Kiyokazu Hosaka

Takeji Takagi

A flexible tube and a method of manufacturing same and provided. The flexible tube comprises a tubular body of a crystalline polymer material having a porous microstructure including a number of micro-nodes which are coupled together by fibrils. A synthetic resin material having gas tightness and stretchability is filled into the pores of the porous microstructure.

Flexible tube and method of manufacturing same

A flexible tube and a method of manufacturing same are provided. The flexible tube comprises a tubular body of a crystalline polymer material having a porous microstructure including a number of micro-nodes which are coupled together by fibrils. A synthetic resin material having gas tightness and stretchability is filled into the pores of the porous microstructure.

Flexible tube

An endoscope film feeding device for delivering a film in the distal end portion of a sheath of an endoscope comprises a feeding pulley rotatably mounted in an operation section of the endoscope and having a frustoconical drum portion with a helical groove in its outer peripheral wall. The feeding device also includes an operating wire with its one end connected to the larger end portion of the drum portion and the other end to a film takeup wire wound about the film takeup pulley in the distal end portion of the sheath. Each time the drum portion is rotated through a predetermined angle, the operating wire gradually engages the helical groove from the larger diameter end to the smaller diameter end so that the operating wire pulls the film takeup wire to rotate the film takeup pulley to feed the film with an equal frame length kept for each film takeup.

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Fuchu, Japan

Kiyokazu Hosaka