JPH0333602U - - Google Patents
Info
- Publication number
- JPH0333602U JPH0333602U JP9498389U JP9498389U JPH0333602U JP H0333602 U JPH0333602 U JP H0333602U JP 9498389 U JP9498389 U JP 9498389U JP 9498389 U JP9498389 U JP 9498389U JP H0333602 U JPH0333602 U JP H0333602U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- air
- biasing member
- supply passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
第１図は第１実施例を示す送気送水切換装置の
断面図、第２図は電子内視鏡装置を示す図、第３
図は第２実施例を示す送気送水切換装置の断面図
、第４図は同実施例による送気路の洗滌の使用状
態図である。
１１，５０……送気送水切換装置、１５，５１
……シリンダ、１６，６１……ピストン、２４，
５７……下流側送気路（送気路）、３０，６５…
…リーク孔、３１，６６……上部連通孔（開口部
）、４０，７２……被履部材（付勢部材）、４４
，７７……逆止弁、６３……通気口（開口部）。
FIG. 1 is a cross-sectional view of an air/water supply switching device showing the first embodiment, FIG. 2 is a diagram showing an electronic endoscope device, and FIG.
The figure is a cross-sectional view of an air/water supply switching device showing a second embodiment, and FIG. 4 is a diagram showing how the same embodiment is used for cleaning the air passage. 11,50...Air/water supply switching device, 15,51
...Cylinder, 16,61 ...Piston, 24,
57...Downstream air supply path (air supply path), 30, 65...
... Leak hole, 31, 66 ... Upper communication hole (opening), 40, 72 ... Worn member (biasing member), 44
, 77...Check valve, 63...Vent hole (opening).
Claims (1)
御をし内視鏡挿入部の先端側に設けられた噴出ノ
ズルに流体を供給する内視鏡用送気送水切換装置
において、 上記操作部に設けられたシリンダと、このシリ
ンダ内に進退自在に嵌挿されリーク孔を有するピ
ストンと、上記シリンダ及びピストンを覆い気密
的に装着するとともにピストンを上方に付勢部材
と、上記ピストンの側周面に設けられ上記付勢部
材の付勢により操作部外に位置し上記リーク孔に
連通する開口部と、一端が上記ノズルに連通し他
端が上記シリンダを介して上記付勢部材内に連通
する送気路と、上記ピストンの開口部と送気路と
の間に設けられ送気路からの逆流を防止する逆止
弁とを有したことを特徴とする内視鏡用送気送水
切換装置。[Scope of Claim for Utility Model Registration] An endoscope supply system that is provided in the operation section of an endoscope, controls the selection of air and water supply, and supplies fluid to a jet nozzle provided at the distal end of the endoscope insertion section. The pneumatic water switching device includes a cylinder provided in the operating section, a piston fitted into the cylinder so as to be movable and retractable and having a leak hole, and the cylinder and piston covered and airtightly mounted, with the piston attached above. a biasing member, an opening provided on a side circumferential surface of the piston and positioned outside the operating section by bias of the biasing member and communicating with the leak hole; one end communicating with the nozzle and the other end communicating with the cylinder; The device is characterized by having an air supply passage that communicates with the inside of the biasing member through the piston, and a check valve that is provided between the opening of the piston and the air supply passage and prevents backflow from the air supply passage. Air and water switching device for endoscopes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9498389U JPH0710723Y2 (en) | 1989-08-10 | 1989-08-10 | Air / water switching device for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9498389U JPH0710723Y2 (en) | 1989-08-10 | 1989-08-10 | Air / water switching device for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0333602U true JPH0333602U (en) | 1991-04-03 |
| JPH0710723Y2 JPH0710723Y2 (en) | 1995-03-15 |
Family
ID=31644263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9498389U Expired - Lifetime JPH0710723Y2 (en) | 1989-08-10 | 1989-08-10 | Air / water switching device for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710723Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176153A (en) * | 1997-09-10 | 1999-03-23 | Asahi Optical Co Ltd | Endoscope |
-
1989
- 1989-08-10 JP JP9498389U patent/JPH0710723Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176153A (en) * | 1997-09-10 | 1999-03-23 | Asahi Optical Co Ltd | Endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710723Y2 (en) | 1995-03-15 |
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