Connection joint, endoscope, and method of connecting tube and connection joint
AssigneeOlympus Corporation
InventorKazuki Ono
Life of this patent
Estimating the term…
Abstract
A connection joint includes: a first sleeve that is formed such that an end portion of a first tube arranged in an endoscope is externally fitted to the first sleeve; a first pusher configured to apply bias to the first sleeve from an outer peripheral side of the first sleeve; and a first bias releasing portion configured to press the first pusher in an outer peripheral direction of the first sleeve to release the bias.
Claims15
A connection joint comprising:
- a case main body that has a tubular shape with a bottomed surface;
- a first sleeve that is formed such that an end portion of a first tube arranged in an endoscope is externally fitted to the first sleeve, the first sleeve being integrally formed with the bottomed surface;
- a first pusher having a first surface configured to directly apply a bias to the first tube from a first outer peripheral surface of the first sleeve;
- and
- a first bias releasing portion having a first bias releasing surface configured to press the first pusher in a direction toward the bottomed surface to release the bias;
- wherein one of the first surface of the first pusher or the first outer peripheral surface of the first sleeve having a first retainer surface configured to prevent the first tube from coming off from the first sleeve;
- and
- the first retainer surface comprises first grooves that are aligned in a direction that is not parallel to a mounting direction of the first tube.
A method of connecting a tube to a connection joint, the tube constituting a conduit path arranged inside an insertion portion of an endoscope, the method comprising:
- releasing bias by pressing a pusher surface, which directly applies the bias to a sleeve integrally formed with a bottomed surface of the connection joint, from an outer peripheral surface of the sleeve, in an outer peripheral direction of the sleeve by pushing a bias releasing surface towards the bottomed surface;
- fitting an end portion of the tube to the sleeve for which contact with the pusher surface is being released;
- releasing pressing of the pusher surface by moving the bias releasing surface in a first direction such that the pusher surface moves in a direction away from the outer peripheral surface of the sleeve;
- and
- pressing the pusher surface toward the outer peripheral surface of the sleeve by moving the bias releasing surface in a second direction, different from the first direction.
A method of connecting a tube and a connection joint, the tube being arranged in an endoscope, the method comprising:
- pressing a pusher surface, which directly applies bias to a sleeve integrally formed with a bottomed surface of the connection joint, to an outer peripheral surface of the sleeve, toward the bottomed surface to separate the sleeve from the pusher;
- fitting the tube to the sleeve externally;
- releasing pressing to the pusher surface;
- and
- applying, by the pusher surface, bias to an outer peripheral surface of the tube.
A connection joint comprising:
- a case main body that has a tubular shape with a bottomed surface;
- a first sleeve that is formed such that an end portion of a first tube arranged in an endoscope is externally fitted to the first sleeve, the first sleeve being integrally formed with the bottomed surface;
- a first pusher having a first surface configured to directly apply a bias to the first tube from a first outer peripheral surface of the first sleeve;
- and
- a first bias releasing portion having a first bias releasing surface configured to press the first pusher in a direction toward the bottomed surface to release the bias;
- wherein the first pusher includes a plurality of plate springs each having the first surface.
Dependencies are inferred from the claim text.