JPS6238980B2 - - Google Patents
Info
- Publication number
- JPS6238980B2 JPS6238980B2 JP55188357A JP18835780A JPS6238980B2 JP S6238980 B2 JPS6238980 B2 JP S6238980B2 JP 55188357 A JP55188357 A JP 55188357A JP 18835780 A JP18835780 A JP 18835780A JP S6238980 B2 JPS6238980 B2 JP S6238980B2
- Authority
- JP
- Japan
- Prior art keywords
- suction
- valve body
- air supply
- insertion side
- hole
- 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.)
- Expired
Links
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000002784 stomach Anatomy 0.000 description 10
- 239000007788 liquid Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Endoscopes (AREA)
Description
【発明の詳細な説明】
この発明は、吸引管内の負圧を速かに解除でき
るようにした内視鏡の吸引制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction control device for an endoscope that is capable of quickly releasing negative pressure within a suction tube.
内視鏡による体腔内の検査時に観察箇所の液体
等を吸引する用具としては、例えば実公昭48年第
10705号に係る内視鏡における吸液装置がある。
これは、先端開口を内視鏡の先端部に、また後端
開口を操作部本体の外部に夫々配置した鉗子導入
管の一部と、開閉可能な外端開口を上記操作部本
体の外部に配置した通気管の一部とを連通し、内
視鏡とは別の吸気装置と上記通気管とを接続し得
るようにしたものである。 For example, as a tool for aspirating liquid etc. from the observation area during examination of the body cavity with an endoscope,
There is a liquid suction device for an endoscope according to No. 10705.
This is a part of the forceps introduction tube with the tip opening located at the tip of the endoscope and the rear end opening located outside the operating unit body, and an openable and closable outer end opening located outside the operating unit main body. A part of the arranged ventilation pipe is communicated with the ventilation pipe so that a suction device other than the endoscope can be connected to the ventilation pipe.
然し乍ら上記構成であると、内視鏡の先端部に
位置する吸引口に胃内壁等が吸着した場合、吸引
制御装置で鉗子導入管内の吸引を止めても鉗子導
入管内は負圧状態のままである為、胃内壁等の吸
着の解除が速かに行なわれず胃内壁等を傷つける
という惧れがあつた。 However, with the above configuration, if the inner wall of the stomach, etc. is attracted to the suction port located at the tip of the endoscope, the inside of the forceps introduction tube will remain in a negative pressure state even if the suction inside the forceps introduction tube is stopped using the suction control device. Therefore, there was a fear that the adsorption of the stomach inner wall, etc., could not be released quickly and the stomach inner wall, etc., would be damaged.
又、他の公知例としては実公昭52年第2316号に
係る吸引制御装置があつて、これは鉗子などを通
過するための挿通口を有する挿通管の上記挿通口
の外側に囲壁を設けて空間部を形成するとともに
上記挿通口と空間部を連通し且つ囲壁に吸引連結
部を設けたものである。 Another known example is a suction control device according to Utility Model Publication No. 2316 of 1972, which includes an insertion tube having an insertion opening for passing forceps, etc., and a surrounding wall provided on the outside of the insertion opening. In addition to forming a space, a suction connecting portion is provided on the surrounding wall to communicate the insertion port and the space.
上記の装置でも、鉗子導入時以外は常に鉗子導
入管の吸引を行つている為上述と同様に胃内壁等
を吸着して傷つけ易いと云う不都合があつた。 Even with the above-mentioned device, since the forceps introduction tube is always suctioned except when the forceps are introduced, there is a problem that the inner wall of the stomach, etc., is likely to be easily damaged by suction as described above.
この発明は、上述した問題に鑑みなされたもの
で、吸引管を介して内視鏡先端部に設けられた吸
引口で吸引する際に、胃内壁等が上記吸引口に吸
着してもこの吸引管内へ送気し負圧を解除して吸
着状態を速かに解除できるようにした安全性の高
い内視鏡の吸引制御装置の提供を目的とするもの
である。 This invention was made in view of the above-mentioned problem, and when suction is performed through a suction tube through a suction port provided at the distal end of an endoscope, even if the inner wall of the stomach, etc. is adsorbed to the suction port, the suction will not continue. The object of the present invention is to provide a suction control device for an endoscope that is highly safe and can quickly release the suction state by supplying air into the tube and releasing the negative pressure.
以下にこの発明の一実施例を図面に基づき説明
する。 An embodiment of the present invention will be described below based on the drawings.
内視鏡本体１は、操作部２に挿入部３とユニバ
ーサルコード４を連結してあつて、操作部２には
鉗子口５に連結した鉗子導入管６と、挿入側吸引
管路７が接続された吸引制御装置８と、内視鏡
（図示せず）に連結した接眼部９を設けてある。
又、ユニバーサルコード４の先端には、コネクタ
ー１０を固定し、このコネクター１０は光源装置
兼用空気供給装置１１へ着脱自在に連結してあ
り、又連結用チユーブ１２を介して吸引装置１３
へも着脱自在に連結してある。 The endoscope main body 1 has an insertion section 3 and a universal cord 4 connected to an operation section 2, and a forceps introduction tube 6 connected to a forceps port 5 and an insertion side suction line 7 are connected to the operation section 2. A suction control device 8 and an eyepiece 9 connected to an endoscope (not shown) are provided.
Further, a connector 10 is fixed to the tip of the universal cord 4, and this connector 10 is detachably connected to an air supply device 11 that also serves as a light source device, and is also connected to a suction device 13 via a connecting tube 12.
It is also removably connected to the
前記挿入側吸引管路７の上端は、吸引制御装置
８を介して後述の如く鉗子導入管６に連通し、又
下端は挿入部３を貫通してその端部１４で開口し
吸引口１５を形成している。 The upper end of the insertion side suction pipe 7 communicates with the forceps introduction pipe 6 via the suction control device 8 as described later, and the lower end penetrates the insertion part 3 and opens at the end 14 to open the suction port 15. is forming.
一方、吸引制御装置８を介して前記挿入側吸引
管路７と連通する吸引管１６は、ユニバーサルコ
ード４乃至コネクター１０及び連結チユーブ１２
を貫通し、前記吸引装置１３内の吸引ポンプ１７
に連結してある。 On the other hand, a suction tube 16 communicating with the insertion side suction conduit 7 via the suction control device 8 is connected to the universal cord 4 to the connector 10 and the connecting tube 12.
and the suction pump 17 inside the suction device 13
It is connected to.
又、前記吸引制御装置８に接続された送気管路
１８も、ユニバーサルコード４乃至コネクター１
０を貫通して前記光源装置兼用空気供給装置１１
内の送気ポンプ１９に連結してある（第１図参
照）。 Further, the air supply line 18 connected to the suction control device 8 is also connected to the universal cord 4 to the connector 1.
0 to the light source device/air supply device 11
It is connected to the air supply pump 19 inside (see FIG. 1).
次に上記吸引制御装置８の構成を第２図を参照
して説明する。有底円筒状に形成されたシリンダ
２０は、外方（図中右端）にフランジ２１を形成
し、管壁の所定箇所には前記送気管路１８に接続
する送気口２２と、挿入側吸引管路７に接続する
挿入側吸引口２３と、吸引管１６に接続する吸引
孔２４とを穿設してある。上記シリンダ２０内に
は、中央軸芯方向にリーク孔２５が形成された中
空筒状の弁体２６を摺動自在に嵌挿してある。こ
の弁体２６の外周面には、前記送気口２２に連通
可能で、且つ所定の幅員Ｗを有する環状溝２７
と、挿入側吸引口２３に連通可能で且つ前記リー
ク孔２５とも連通する透孔２８を夫々穿設してあ
る。又、弁体２６の先端部２９は、前記吸引口２
４を開閉可能な形態に成形し、且つシリンダ２０
の底部に配設された第１コイルスプリング３０と
対峙させてある。他方、上記弁体２６の外方（図
中右端）は、フランジ２１に螺着した取付環３１
と当接する箇所に段部３２を形成すると共に、そ
こから外方の外径を細く成形して細径部３３とし
てあり、その終端部には指押え環３４を螺着して
ある。この指押え環３４と取付環３１との間に
は、第２コイルスプリング３５を介装してあつ
て、第２コイルスプリング３５の弾発力は前記第
１コイルスプリング３０のそれより弱くしてあ
る。前記弁体２６には、前記環状溝２７と透孔２
８及び先端部２９の近傍に夫々Ｏリング３６を埋
設してあり、又、弁体２６の外周壁面で前記送気
口２２と挿入側吸引口２３及び吸引孔２４を各々
閉塞可能としてある。 Next, the structure of the suction control device 8 will be explained with reference to FIG. 2. The cylinder 20, which is formed into a cylindrical shape with a bottom, has a flange 21 formed on the outside (right end in the figure), and an air supply port 22 connected to the air supply pipe line 18 at a predetermined location on the tube wall, and an insertion side suction An insertion-side suction port 23 connected to the conduit 7 and a suction hole 24 connected to the suction tube 16 are provided. A hollow cylindrical valve body 26 having a leak hole 25 formed in the direction of the central axis is slidably inserted into the cylinder 20 . An annular groove 27 that can communicate with the air supply port 22 and has a predetermined width W is provided on the outer peripheral surface of the valve body 26.
and a through hole 28 which can communicate with the insertion side suction port 23 and also communicate with the leak hole 25. Further, the tip portion 29 of the valve body 26 is connected to the suction port 2.
4 is molded into a form that can be opened and closed, and the cylinder 20
It is opposed to a first coil spring 30 disposed at the bottom of the spring. On the other hand, the outer side of the valve body 26 (the right end in the figure) has a mounting ring 31 screwed onto the flange 21.
A step part 32 is formed at the part where it abuts, and the outer diameter of the outer diameter is narrowed from the step part 32 to form a narrow diameter part 33, and a finger press ring 34 is screwed onto the terminal end of the step part 32. A second coil spring 35 is interposed between the finger press ring 34 and the attachment ring 31, and the elastic force of the second coil spring 35 is weaker than that of the first coil spring 30. be. The valve body 26 has the annular groove 27 and the through hole 2.
O-rings 36 are embedded in the vicinity of the valve body 8 and the distal end portion 29, respectively, and the air supply port 22, the insertion side suction port 23, and the suction hole 24 can be respectively closed by the outer peripheral wall surface of the valve body 26.
このような構成に於いて、先ず操作前の状態即
ち待機状態を説明する。 In such a configuration, the state before operation, that is, the standby state will be explained first.
この状態下では、第２コイルスプリング３５の
弾発力で弁体２６がシリンダ２０の外方（図中右
方）に引張られ段部３２と取付環３１とが当接し
た状態で停止し、送気口２２と環状溝２７が連通
する一方、挿入側吸引口２３は閉塞状態である。 Under this state, the valve body 26 is pulled outward from the cylinder 20 (to the right in the figure) by the elastic force of the second coil spring 35, and stops with the stepped portion 32 and the mounting ring 31 in contact with each other. While the air supply port 22 and the annular groove 27 communicate with each other, the insertion side suction port 23 is in a closed state.
次に、第１操作段階、即ち前記挿入部を体腔内
に挿入し当該箇所の例えば胃内の血液等を吸引す
る場合には、指押え環３４を押し込み弁体２６を
図中左方に摺動させ、その先端部２９が第１コイ
ルスプリング３０に当接した状態で停止させる。
この状態下では、送気口２２は環状溝２７と連通
し続けた状態であるが送気ポンプ１９からの圧縮
空気は環状溝２７のみに充満している。一方、こ
の時透孔２８と挿入側吸引口２３が連通し、挿入
側吸引管路７から透孔２８乃至リーク孔２５を経
て吸引管１６の通路が形成されるから、吸引ポン
プ１７の作動により上記通路内は負圧となり挿入
部３の吸引口１５から上記通路を介して液体が吸
引できる。 Next, in the first operation step, that is, when inserting the insertion section into a body cavity and aspirating blood from the relevant location, for example, in the stomach, push the finger press ring 34 and slide the valve body 26 to the left in the figure. and stop with the tip end 29 in contact with the first coil spring 30.
Under this state, the air supply port 22 continues to communicate with the annular groove 27, but only the annular groove 27 is filled with compressed air from the air supply pump 19. On the other hand, at this time, the through hole 28 and the insertion side suction port 23 communicate with each other, and a passage for the suction tube 16 is formed from the insertion side suction conduit 7 through the through hole 28 and the leak hole 25. The inside of the passage becomes negative pressure, and liquid can be sucked from the suction port 15 of the insertion portion 3 through the passage.
そして、第２操作段階、即ち吸引口１５が胃内
壁等に吸着してしまつた際直ちにこれを解除する
必要がある場合には、指押え環を更に強く押し込
み第１コイルスプリング３０が弁体２６の先端部
２９で所定量圧縮された状態にする。この時は、
吸引口２４が弁体２６の外周壁面で閉塞される一
方、環状溝２７と挿入側吸引口２３とが互いに連
通する状態となるから、送気ポンプ１９からの圧
縮空気は環状溝２７乃至挿入側吸引管路７へ瞬時
に流入し同管路７内を正圧にして吸引口１５が胃
内壁等を吸着した状態を直ちに解除させることが
できる。 In the second operation stage, that is, when the suction port 15 has been adsorbed to the inner wall of the stomach and needs to be released immediately, the finger press ring is further pushed down so that the first coil spring 30 is attached to the valve body 26. The distal end 29 is compressed by a predetermined amount. At this time,
While the suction port 24 is closed by the outer circumferential wall surface of the valve body 26, the annular groove 27 and the insertion side suction port 23 are in communication with each other, so that the compressed air from the air pump 19 flows from the annular groove 27 to the insertion side. It instantly flows into the suction pipe 7 and creates a positive pressure inside the pipe 7, so that the state in which the suction port 15 suctions the inner wall of the stomach or the like can be immediately released.
次に、第二実施例について第３図に基づき説明
するが、前記第一実施例と同一のものには同符号
を記しその説明を省略する。 Next, a second embodiment will be described based on FIG. 3, and the same parts as those in the first embodiment will be denoted by the same reference numerals and the explanation thereof will be omitted.
この実施例では、前記第１スプリング３０をシ
リンダ２０の底部に介装する代りにシリンダ２０
の外方に配設したものであつて、前記弁体２０よ
り更に外方へ長くした弁体４０の取付環３１と指
押え環３４の中間に、突条環４１を形成し且つ円
環状の受環部材４２をそこに遊嵌してある。上記
受環部材４２と取付環３１の間には、前記第２コ
イルスプリング３５に相当する弱弾発力のコイル
スプリング４３を介装し、又、受環部材４２と指
押え環３４との間には前記第１コイルスプリング
３０に相当する強弾発力のコイルスプリング４４
を介装してある。 In this embodiment, instead of interposing the first spring 30 at the bottom of the cylinder 20,
A protrusion ring 41 is formed between the mounting ring 31 and the finger press ring 34 of the valve body 40, which is disposed outwardly from the valve body 20 and is further extended outwardly from the valve body 20. A receiving ring member 42 is loosely fitted therein. A coil spring 43 with a weak elastic force corresponding to the second coil spring 35 is interposed between the ring receiving member 42 and the attachment ring 31, and between the ring receiving member 42 and the finger press ring 34. is a coil spring 44 with a strong elastic force corresponding to the first coil spring 30.
is interposed.
尚、上記構成に係る吸引制御装置の作用効果
は、第一実施例のそれと全く同一であるため説明
を省略する。 It should be noted that the effects of the suction control device having the above configuration are completely the same as those of the first embodiment, and therefore the explanation thereof will be omitted.
勿論この発明は、上記実施例に特定されるもの
ではなく、例えば送気管路は内視鏡の送気送水制
御装置の管路と並用しても良く、要はその技術的
範囲内では如何ようにも変更し得るものである。 Of course, the present invention is not limited to the above-mentioned embodiments; for example, the air supply pipe line may be used in parallel with the pipe line of the air and water supply control device of the endoscope, and in short, any method may be used within the technical scope. It can also be changed.
上述したようにこの発明によれば、弁体に形成
した環状溝が、弁体の押し込み操作量に応じて吸
引管路若しくは送気管路と連通するようにしてあ
るから、通常の体腔内吸引操作は固より胃壁等が
挿入部の吸引口に吸着しても、指頭で更に強く押
し込み操作するだけでその状態を瞬時に解除し、
胃壁等に損傷を与えずに確実に離すことができる
という効果を有するものである。 As described above, according to the present invention, the annular groove formed in the valve body communicates with the suction conduit or the air supply conduit depending on the amount of pushing operation of the valve body. Even if the stomach wall is stuck to the suction port of the insertion tube, the situation can be instantly released by simply pressing harder with the tip of your finger.
This has the effect that it can be reliably removed without damaging the stomach wall or the like.
第１図はこの発明の一実施例に係る内視鏡の構
成を示す説明図、第２図は同上内視鏡に於ける吸
引制御装置の構成を示す縦断面図、第３図はこの
発明の第二実施例に係る吸引制御装置の構成を示
す縦断面図である。
１…内視鏡本体、２…操作部、３…挿入部、７
…挿入側吸引管路、８…吸引制御装置、１６…吸
引管、１７…吸引ポンプ、１８…送気管路、１９
…送気ポンプ、２０…シリンダ、２２…送気口、
２３…挿入側吸引口、２４…吸引孔、２６…弁
体、２７…環状溝、２８…透孔、３０…第１コイ
ルスプリング、３４…指押え環、３５…第２コイ
ルスプリング。
FIG. 1 is an explanatory diagram showing the structure of an endoscope according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing the structure of a suction control device in the same endoscope, and FIG. 3 is a diagram showing the structure of the endoscope according to the present invention. FIG. 3 is a longitudinal cross-sectional view showing the configuration of a suction control device according to a second embodiment of the present invention. 1... Endoscope main body, 2... Operation section, 3... Insertion section, 7
...Insertion side suction pipe line, 8...Suction control device, 16...Suction pipe, 17...Suction pump, 18...Air supply pipe line, 19
...Air supply pump, 20...Cylinder, 22...Air supply port,
23... Insertion side suction port, 24... Suction hole, 26... Valve body, 27... Annular groove, 28... Through hole, 30... First coil spring, 34... Finger press ring, 35... Second coil spring.
Claims (1)
たシリンダ内に、吸引管と連通するリーク孔が形
成された弁体を摺動自在に嵌挿し、この弁体の外
周面には送気管路に連通し且つ挿入側吸引管路と
も連通可能な環状溝を形成し、又弁体の管壁には
前記リーク孔と連通し且つ挿入側吸引管路とも連
通可能な透孔を穿設して、弁体の最初の押動によ
り透孔及びリーク孔を介して吸引管から挿入側吸
引管路に至る吸引通路を形成し、次段階の押動に
より環状溝を介して送気管から挿入側吸引管路に
至る送気通路を形成するようにしたことを特徴と
する内視鏡の吸引制御装置。1. A valve body with a leak hole that communicates with the suction pipe is slidably inserted into a cylinder that communicates with the suction pipe, the insertion side suction pipe line, and the air supply pipe line, and the outer peripheral surface of this valve body is An annular groove is formed that communicates with the tracheal passage and the suction line on the insertion side, and a through hole is formed in the tube wall of the valve body that communicates with the leak hole and the suction line on the insertion side. The first pushing movement of the valve body forms a suction passage from the suction pipe to the insertion side suction pipe line through the through hole and the leak hole, and the next pushing movement forms the suction passage from the air supply pipe through the annular groove. A suction control device for an endoscope, characterized in that an air supply passageway leading to a side suction conduit is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55188357A JPS57112843A (en) | 1980-12-29 | 1980-12-29 | Suction control apparatus of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55188357A JPS57112843A (en) | 1980-12-29 | 1980-12-29 | Suction control apparatus of endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57112843A JPS57112843A (en) | 1982-07-14 |
| JPS6238980B2 true JPS6238980B2 (en) | 1987-08-20 |
Family
ID=16222201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55188357A Granted JPS57112843A (en) | 1980-12-29 | 1980-12-29 | Suction control apparatus of endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57112843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008210927A (en) * | 2007-02-26 | 2008-09-11 | Matsushita Electric Ind Co Ltd | Device and method for recognizing location of substrate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4145579B2 (en) * | 2002-06-26 | 2008-09-03 | Ｈｏｙａ株式会社 | Endoscopic air feeding / suction operation mechanism |
-
1980
- 1980-12-29 JP JP55188357A patent/JPS57112843A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008210927A (en) * | 2007-02-26 | 2008-09-11 | Matsushita Electric Ind Co Ltd | Device and method for recognizing location of substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57112843A (en) | 1982-07-14 |
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