Resin tube and endoscope
AssigneeOlympus Medical Systems Corp.
InventorsHiromitsu Okada, Mamoru Machiya, Kei Kobayashi
Life of this patent
Estimating the term…
Abstract
A channel tube inserted into an insertion portion of an endoscope includes: a rear side tube including, on a part of an outer surface thereof, a helical-shaped groove; and a front side tube including, on a part of an outer surface thereof, a helical-shaped groove; a connecting pipe for connecting one end of the rear side tube and one end of the front side tube; and a coil wound on the groove of the rear side tube. The rear side tube is connected to the connecting pipe at a part where the groove is formed and the coil is not wound, and the front side tube is connected to the connecting pipe at a part where a coil is not wound.
Claims14
A resin tube configured to be inserted in a flexible tube of an endoscope or a connection cable, the resin tube comprising:
- a first resin tube including, on a part of an outer surface thereof, a helical-shaped first groove;
- a second resin tube including, on a part of an outer surface thereof, a helical-shaped second groove;
- a first coil wound on the first groove of the first resin tube;
- a second coil wound on the second groove of the second resin tube;
- and
- a connecting pipe configured to connect one end of the first resin tube and one end of the second resin tube,
- wherein the first resin tube is externally fitted and connected to the connecting pipe at a coil-removed part where the first groove is formed and the first coil is peeled, removed and not wound, and
- the second resin tube is externally fitted and connected to the connecting pipe at a part where the second coil is not wound.
An endoscope comprising:
- an insertion portion including a flexible tube configured to be inserted into an observation target;
- an operation portion provided in a linked manner on a proximal end side of the insertion portion;
- a connection cable configured to connect the operation portion and other devices;
- and
- a resin tube configured to be inserted into the flexible tube or the connection cable, the resin tube including:
- a first resin tube including, on a part of an outer surface thereof, a helical-shaped first groove;
- a second resin tube including, on a part of an outer surface thereof, a helical-shaped second groove;
- a first coil wound on the first groove of the first resin tube;
- a second coil wound on the second groove of the second resin tube;
- and
- a connecting pipe configured to connect one end of the first resin tube and one end of the second resin tube,
- wherein the first resin tube is externally fitted and connected to the connecting pipe at a part where the first groove is formed and
- at a coil-removed region where the first coil is peeled, removed and not wound, and the second resin tube is externally fitted and connected to the connecting pipe at a part where the second coil is not wound.
Dependencies are inferred from the claim text.