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US 7,611,457 B2Granted
Front end structure of endoscope
AssigneeHoya Corporation
InventorTeruo Ouchi
Life of this patent
Estimating the term…
Abstract
An endoscope having an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside the tubular organ, is provided. A plurality of grooves are formed in parallel with an axis of the distal unit on a circumferential surface of the distal unit and the grooves are spaced from each other.
Claims9
An endoscope comprising:
- an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside the tubular organ,
- wherein a plurality of grooves are formed in parallel with an axis of the distal unit on an outer peripheral surface of the distal unit and extend entirely across the axis along the outer peripheral surface of the distal unit, and are spaced from each other, each of the plurality of grooves having a depth,
- wherein the distal unit is configured to hook a crease of an organ and to advance the inserted portion,
- wherein an outer diameter of the distal unit is configured to be greater than an outer diameter of the bendable portion,
- wherein a step having a height is formed at a boundary of the bendable portion and the distal unit, and
- wherein the depth of each of the plurality of grooves is equal to the height of the step.
3 more elements
An endoscope comprising:
- an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside the tubular organ,
- wherein the distal unit is provided with a tubular hood that protrudes forwardly from an edge of the distal unit,
- wherein a plurality of grooves are formed perpendicularly to a diameter of the tubular hood and extend entirely along an outer peripheral surface of the tubular hood, and are spaced from each other, each of the plurality of grooves having a depth,
- wherein the tubular hood is configured to hook a crease of an organ and to advance the inserted portion,
- wherein an outer diameter of the tubular hood is configured to be greater than an outer diameter of the bendable portion,
- wherein a step having a height is formed at a boundary of the bendable portion and the tubular hood, and
- wherein the depth of each of the plurality of grooves is equal to the height of the step.
4 more elements
Dependencies are inferred from the claim text.