Hood for endoscope and endoscope system
AssigneeOlympus Corporation
InventorsFuminori Wake, Kazuhiko Hino
Life of this patent
Estimating the term…
Abstract
A hood for endoscope is attached to an endoscope including an insertion portion, a distal end portion and an air-feeding conduit, and the hood for endoscope includes a frame configured to be fitted to an outer circumference of the distal end portion, and a rectification plate configured to, so that gas spurted out forward in a longitudinal axis direction from an air-feeding port flows, changing an orientation in which the gas flows, from the longitudinal axis direction to a circumferential direction of the frame intersecting the longitudinal axis direction by the gas hitting the rectification member, guide the gas in a direction not toward a position of the distal end portion provided with an observation member.
Claims13
A hood for an endoscope,
- wherein the endoscope comprises:
- an insertion portion having an insertion portion surface defining an opening through which a fluid flows from the insertion portion in a first direction;
- and
- an optical element provided on the insertion portion surface, and
- wherein the hood comprises:
- a frame provided circumferentially around the first direction and extending along the first direction between a proximal side and a distal side of the frame;
- and
- a plate surface extending from a portion of an inner circumferential surface of the frame between the proximal side and the distal side of the frame, wherein the plate surface defines at least one hood opening, and wherein the plate surface is configured to redirect the fluid flowing in the first direction through the opening of the insertion portion surface through the at least one hood opening in one or more directions towards the frame and away from the optical element.
An endoscope system comprising:
- an endoscope comprising:
- an insertion portion having an insertion portion surface defining an opening through which a fluid flows from the insertion portion in a first direction;
- and
- an optical element provided on the insertion portion surface;
- and
- a hood comprising:
- a frame provided circumferentially around the first direction and extending along the first direction between a proximal side and a distal side of the frame;
- and
- a plate surface extending from a portion of an inner circumferential surface of the frame between the proximal side and the distal side of the frame, wherein the plate surface defines at least one hood opening, and wherein the plate surface is configured to redirect the fluid flowing in the first direction through the opening of the insertion portion surface through the at least one hood opening in one or more directions towards the frame and away from the optical element.
Dependencies are inferred from the claim text.