JP2012045325A5

JP2012045325A5 -

Info

Publication number: JP2012045325A5
Application number: JP2010192745A
Authority: JP
Filing date: 2010-08-30
Publication date: 2013-05-30
Anticipated expiration: 2030-08-30

Description

また、請求項１１に示すように、前記内視鏡本体の挿入部が挿入されるシースの側面に設けられた、前記洗浄液を前記流体管路に供給するシリンジを接続するシリンジ接続部に、前記洗浄液の圧力が一定圧以上となったときに開放する弁を設けたことを特徴とする。 In addition, as shown in claim 11, the syringe connecting portion that is provided on the side surface of the sheath into which the insertion portion of the endoscope main body is inserted and that connects the syringe that supplies the cleaning liquid to the fluid conduit, A valve is provided that opens when the pressure of the cleaning liquid exceeds a predetermined pressure.

Claims

In a rigid endoscope having an endoscope main body including an operation unit and a rigid insertion unit connected to a distal end portion of the operation unit,
A fluid conduit for supplying a cleaning liquid for cleaning the observation window formed on the distal end surface of the insertion portion;
A valve that is opened when the pressure of the cleaning liquid supplied by the fluid pipe line exceeds a predetermined pressure;
A rigid endoscope comprising:

The rigid endoscope according to claim 1, wherein the valve is installed on a distal end side of the insertion portion.

3. The rigid endoscope according to claim 1, further comprising a sheath into which an insertion portion of the endoscope body is inserted, wherein the fluid conduit is a gap between the insertion portion and the sheath inner wall. A rigid endoscope, wherein the valve is an O-ring.

The said O-ring is provided in the side facing the front end surface of the said insertion part of the flange part provided in the front-end | tip part of the said sheath so that it may protrude to an internal-diameter side. Rigid endoscope.

The rigid endoscope according to claim 4, wherein the sheath has a stretchable portion that extends in a sheath axial direction when a pressure of a fluid in the fluid conduit becomes equal to or higher than a predetermined pressure.

6. At least one or more grooves are formed on at least one of the side of the O-ring facing the front end surface of the insertion portion or the front end surface of the insertion portion. The described rigid endoscope.

The rigid endoscope according to claim 3, wherein the O-ring is provided at a peripheral end portion of a distal end surface of the insertion portion.

The rigid endoscope according to claim 7, wherein the sheath has a stretchable portion that extends in a sheath axial direction when a pressure of a fluid in the fluid conduit becomes a predetermined pressure or more.

8. The rigid internal structure according to claim 7, wherein at least one groove is formed on at least one of the side of the O-ring facing the inner surface of the flange portion of the sheath and the flange portion. Endoscope.

10. The rigid endoscope according to claim 6, wherein the groove is formed so as to face a direction of an observation window installed on the distal end surface. 11.

The pressure of the cleaning liquid is equal to or higher than a certain pressure in a syringe connecting portion that is provided on a side surface of the sheath into which the insertion portion of the endoscope main body is inserted and connects the syringe that supplies the cleaning liquid to the fluid conduit. 2. The rigid endoscope according to claim 1, further comprising a valve that is sometimes opened.

The insertion portion is provided on at least one of the surface on the side facing the distal end surface of the insertion portion or the distal end surface of the insertion portion of the flange portion provided so as to protrude toward the inner diameter side at the distal end portion of the sheath. The rigid endoscope according to claim 11, wherein at least one groove is formed in a direction toward an observation window installed on the distal end surface of the endoscope.