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US 12,582,295 B2Granted
Endoscope tubular connector and endoscope
AssigneeOlympus Corporation
InventorTakahiro Suwa
Life of this patent
Estimating the term…
Abstract
An endoscope tubular connector includes: a connection joint including a through-hole; and a tubular portion that is formed of a material softer than the connection joint and that has one end arranged in the through-hole of the connection joint. The through-hole of the connection joint and a through-hole of the tubular portion are formed such that the through-holes are connected to each other, and an outer circumference of the tubular portion is arranged on an inner side with respect to an inner circumference of the connection joint.
Claims19
An endoscope tubular connector comprising:
- a connection joint including:
- a first through-hole;
- an inner step having a first inner diameter greater than a second inner diameter of the first through-hole;
- and
- at least one cylindrical protrusion extending into the inner step, the at least one cylindrical protrusion having a cylindrical-ring shape with a third inner diameter between the first inner diameter and the second inner diameter;
- a flexible tube having a first end arranged in the first through-hole of the connection joint, the flexible tube including:
- a second through-hole fixed to the first through-hole;
- and
- at least one groove separately formed from the at least one cylindrical protrusion and offset longitudinally from the first end, the at least one cylindrical protrusion being disposed in the at least one groove,
- wherein an outer diameter of the flexible tube is arranged radially outward relative to the second inner diameter;
- the inner step comprises a first inner step disposed at one end of the connection joint, the at least one cylindrical protrusion comprises at least one first cylindrical protrusion;
- the connection joint includes a second inner step at an other end and at least one second cylindrical protrusion having a cylindrical ring shape, the second cylindrical protrusion being disposed at the second inner step;
- and
- the flexible tube comprises a first flexible tube disposed at the one end;
- and
- further comprising a second flexible tube disposed at the other end.
13 more elements
An endoscope comprising:
- a distal end portion provided at a distal end part of an insertion portion and that has a first through-hole;
- a bendable part provided on a proximal end side of the distal end portion and that is bendable according to a bending operation;
- a connection joint that has a first end connected to the distal end portion and a second end arranged in the bendable part and that has a second through-hole connected to the first through-hole of the distal end portion, the second through-hole having an inner step having a first inner diameter greater than a second inner diameter of the second through-hole;
- and
- a flexible tube provided in the insertion portion, and that has a third end connected to the second end of the connection joint, the flexible tube having a third through-hole fixed to the second through-hole,
- wherein an outer diameter of the flexible tube is arranged radially outward relative to the second inner diameter,
- the connection joint having at least one cylindrical protrusion extending into the inner step, the at least one cylindrical protrusion having a cylindrical-ring shape with a third inner diameter between the first inner diameter and the second inner diameter;
- and
- the flexible tube having at least one groove separately formed from the at least one cylindrical protrusion and offset longitudinally from the third end, the at least one cylindrical protrusion being disposed in the at least one groove.
6 more elements
Dependencies are inferred from the claim text.