Stopcock

Patent metadata

Field	Value
Publication number	US-2016309991-A1
Application number	US-201515109697-A
Country	US
Kind code	A1
Filing date	Feb 10, 2015
Priority date	Feb 19, 2014
Publication date	Oct 27, 2016
Grant date	—

Abstract

A stopcock for a channel that guides a flux medium in a medical endoscope, the stopcock having a housing accommodating a plug rotatable about an axis in a conical seat penetrated by the channel, wherein the housing has a bearing collar adjacent to the conical seat in the direction of the axis, in which bearing collar a handle body is mounted to be rotatable about the axis, the handle body supporting a handle outside the housing and rotationally coupled to the plug displaceable in direction of the axis and resiliently supported relative thereto, wherein the handle body has a radially elastic detent device engaging a circumferential inner groove of the bearing collar to be locking in direction of the axis, wherein the plug is arranged and configured bring the detent device out of engagement with the bearing collar upon displacement in direction of the axis into an unlocked position.

First claim

1 . A stopcock for a channel that guides a flux medium in a medical endoscope, the stopcock having a housing that accommodates a plug so as to be rotatable about an axis thereof in a conical seat penetrated by the channel, wherein the housing has a bearing collar adjacent to the conical seat in the direction of the axis, in which bearing collar a handle body is mounted so as to be rotatable about the axis, the handle body supporting a handle outside the housing and being rotationally coupled to the plug so as to be displaceable in the direction of the axis and also being resiliently supported relative thereto, wherein the handle body has a radially elastic detent device that engages a circumferential inner groove of the bearing collar so as to be locking in the direction of the axis, wherein the plug is arranged and configured so as to bring the detent device out of engagement with the bearing collar upon displacement in the direction of the axis into an unlocked position.

2 . The stopcock according to claim 1 , wherein the detent device is configured as a snap ring mounted in a circumferential outer groove of the handle body.

3 . The stopcock according to claim 2 , wherein the plug supports a plurality of cams that are arranged so as to be circumferentially distributed and extend radially outward, and that—in the unlocked position of the plug—arrive at engagement at the snap ring with such expansion that the snap ring is spread out of engagement with the outer groove of the handle body.

4 . The stopcock according to claim 3 , wherein the cams sit at the free ends of fingers arranged between fingers of the handle body so as to extend out from the plug in the direction of the handle body.

5 . The stopcock according to claim 3 , wherein the cams have run-on slopes in both directions of displacement.

6 . The stopcock according to 4 , wherein the cams have run-on slopes in both directions of displacement.

Assignees

• Winter & Ibe Olympus

Inventors

• Brommersma Pieter

Classifications

• A61M2039/229

  Stopcocks · CPC title

• F16K31/602

  Pivoting levers, e.g. single-sided (F16K31/605 takes precedence) · CPC title

• A61B1/00137 Primary

  End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs · CPC title

• F16K5/0292

  Easy mounting or dismounting means · CPC title

• A61M39/22

  Valves or arrangement of valves {(A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405)} · CPC title