JP2984341B2 - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JP2984341B2 JP2984341B2 JP2224410A JP22441090A JP2984341B2 JP 2984341 B2 JP2984341 B2 JP 2984341B2 JP 2224410 A JP2224410 A JP 2224410A JP 22441090 A JP22441090 A JP 22441090A JP 2984341 B2 JP2984341 B2 JP 2984341B2
- Authority
- JP
- Japan
- Prior art keywords
- suction
- valve
- pinch valve
- passage
- suction tube
- 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 - Fee Related
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は生体内に挿入される導中部に連結され、吸引
される体内物の通路となる吸引管を備えた内視鏡装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to an endoscope having a suction tube which is connected to a guiding portion inserted into a living body and serves as a passage for a body object to be sucked. It relates to a mirror device.
（従来の技術） 従来、この種の内視鏡装置では、第４図に示すよう
に、連続的に作動する吸引ポンプ10に接続された吸引管
20の途中に、吸引管20を押し潰し、通路の開閉を行うピ
ンチバルブ30が装着されている。上記ピンチバルブ30
は、通常は閉じて、吸引OFF状態となっている（第４図
ａ）。そして、吸引を開始する際は、ピンチバルブ30を
開き、吸引ONとし（第４図ｂ）、吸引が終了すると、ピ
ンチバルブ30を閉じていた（第４図ｃ）。(Prior Art) Conventionally, in this type of endoscope apparatus, as shown in FIG. 4, a suction pipe connected to a suction pump 10 which operates continuously.
In the middle of 20, a pinch valve 30 for crushing the suction tube 20 and opening and closing the passage is mounted. Above pinch valve 30
Is normally closed and in a suction OFF state (FIG. 4a). When starting suction, the pinch valve 30 was opened and suction was turned ON (FIG. 4b), and when the suction was completed, the pinch valve 30 was closed (FIG. 4c).
（発明が解決しようとする課題） しかしながら、上述した従来の内視鏡装置において
は、吸引ポンプ10が常時作動しているため、吸引OFFで
も吸引ポンプ10とピンチバルブ30との間は吸引圧が高く
なっている（第４図ａ）。このため、ピンチバルブ30を
開き、吸引ONにすると、吸引開始時に急激な吸引が行わ
れ、導中部の吸引口近傍の体内壁Ａが吸着される（第４
図ｂ）という問題点があった。(Problems to be Solved by the Invention) However, in the above-mentioned conventional endoscope apparatus, since the suction pump 10 is constantly operated, the suction pressure between the suction pump 10 and the pinch valve 30 is maintained even when the suction is OFF. Higher (Fig. 4a). For this reason, when the pinch valve 30 is opened and suction is turned ON, sudden suction is performed at the start of suction, and the body wall A near the suction port in the middle portion is sucked (fourth).
The problem shown in FIG.
又、体内壁Ａを吸着したまま、ピンチバルブ30を閉
じ、吸引をOFFにしても、体内壁Ａを吸引している吸引
口とピンチバルブ30との間は、負圧になっているため、
体内壁Ａの吸着が解除されない（第４図ｃ）という問題
点もあった。Further, even if the pinch valve 30 is closed and suction is turned off while the body wall A is being sucked, the pressure between the suction port for sucking the body wall A and the pinch valve 30 is negative pressure,
There is also a problem that the suction of the body wall A is not released (FIG. 4c).
本発明の目的は、上述した問題点に鑑み、体内壁の吸
着が防止でき、体内壁の吸着が容易に解除できる内視鏡
装置を提供するものである。SUMMARY OF THE INVENTION An object of the present invention is to provide an endoscope apparatus that can prevent the suction of the body wall and can easily release the suction of the body wall in view of the above-described problems.
［発明の構成］ （課題を解決するための手段） 本発明は上述した目的を達成するため、生体内に挿入
される内視鏡スコープと吸引ポンプとを連結し、体内物
を吸引するための通路となる吸引管を有する内視鏡装置
において、前記吸引管に装着されたピンチバルブと、こ
のピンチバルブより上流側及び下流側の吸引管に接続さ
れ、前記ピンチバルブの開閉動作と反対の動作により外
気に対して開閉するリーク弁を装着した分岐管と、を具
備することを特徴とする。[Constitution of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention connects an endoscope scope to be inserted into a living body and a suction pump, and aspirates an internal body. In an endoscope apparatus having a suction tube serving as a passage, a pinch valve mounted on the suction tube and connected to a suction tube upstream and downstream of the pinch valve, and an operation opposite to the opening and closing operation of the pinch valve. And a branch pipe equipped with a leak valve that opens and closes with respect to the outside air.
（作用） 本発明によれば、ピンチバルブより上流側及び下流側
の吸引管に接続した分岐管に、ピンチバルブの開閉動作
と反対の動作で外気に対して開閉するリーク弁を装着す
ることにより、例えばピンチバルブを開き吸引を開始す
るとリーク弁を閉じ、或いはピンチバルブを閉じ吸引を
中止するリーク弁を開き、吸引管内の吸引圧を低下させ
るため、吸引開始時の急激な吸引を抑制して体内壁の吸
着を防止することができ、或いはたとえ体内壁が吸着し
たとしても容易に解除することができ、ひいては安全性
及び作業性を向上させることができる。(Operation) According to the present invention, a leak valve that opens and closes with respect to outside air by an operation opposite to the opening and closing operation of the pinch valve is mounted on the branch pipe connected to the suction pipes on the upstream and downstream sides of the pinch valve. For example, to open the pinch valve and start suction, close the leak valve, or close the pinch valve and open the leak valve to stop suction, reduce the suction pressure in the suction pipe, and suppress the sudden suction at the start of suction. Suction of the body wall can be prevented, or even if the body wall is sucked, it can be easily released, and thus safety and workability can be improved.
（実施例） 本発明の内視鏡装置に係わる一実施例を、第１図乃至
第３図に基づいて従来例と同一構成部分には同一符号を
付して説明する。(Embodiment) An embodiment of the endoscope apparatus according to the present invention will be described with reference to FIGS.
第１図は吸引チューブにおける吸引圧制御手段の横断
面図であり、第２図は同縦断面図を示す。図面におい
て、20は吸引ポンプ10（第３図参照）と、生体内に挿入
される導中部を含む内視鏡スコープ（図示略す）とを連
結し、吸引される体内物の通路となる吸引チューブ（吸
引管）である。上記吸引チューブ20の異なる部分には、
分岐管40の両端部が、連結管50a,50bによって夫々接続
され、連結管50a,50b間の吸引チューブ20及び上記分岐
管40の部分には、吸引圧制御手段60が装着されている。
上記吸引圧制御手段60は、分岐管40に装着されたリーク
弁70、吸引チューブ20に装着されたピンチバルブ80及び
これらリーク弁70とピンチバルブ80とを配設すると共
に、上記分岐管40に連結管50c,50dを介して接続された
通路92を有する胴部90から構成されている。上記リーク
弁70は、胴部90に形成された案内部91を上下方向に摺動
する一対の駆動杆71と、この駆動杆71の上端に固着され
たプレート72と、プレート72の裏面に突設され、胴部90
に形成された通路92の開口部93を開閉する一対の弁体73
と、駆動杆71の周部に巻回され、駆動杆71の軸方向に付
勢するスプリング74とから成っている。又、上記ピンチ
バルブ80は、シリンダ82と、このシリンダ82を上下方向
に摺動する弁体81と、この弁体81との間に吸引チューブ
20を介在する固定部材83とから成っている。FIG. 1 is a cross-sectional view of a suction pressure control unit in a suction tube, and FIG. 2 is a vertical cross-sectional view of the same. In the drawings, reference numeral 20 denotes a suction tube which connects a suction pump 10 (see FIG. 3) and an endoscope (not shown) including a guiding part to be inserted into a living body, and serves as a passage for a body to be sucked. (Suction tube). In different parts of the suction tube 20,
Both ends of the branch pipe 40 are connected by connecting pipes 50a and 50b, respectively, and a suction pressure control means 60 is mounted on the suction tube 20 between the connecting pipes 50a and 50b and the portion of the branch pipe 40.
The suction pressure control means 60 includes a leak valve 70 mounted on the branch pipe 40, a pinch valve 80 mounted on the suction tube 20, and these leak valves 70 and the pinch valve 80. It is composed of a body 90 having a passage 92 connected through the connecting pipes 50c, 50d. The leak valve 70 includes a pair of drive rods 71 that slide in a vertical direction on a guide portion 91 formed on the body portion 90, a plate 72 fixed to an upper end of the drive rod 71, and a protrusion on the back surface of the plate 72. Is installed and the torso 90
A pair of valve bodies 73 for opening and closing an opening 93 of a passage 92 formed in
And a spring 74 wound around the periphery of the drive rod 71 and biasing the drive rod 71 in the axial direction. The pinch valve 80 includes a cylinder 82, a valve body 81 that slides up and down the cylinder 82, and a suction tube between the valve body 81.
20 and a fixing member 83 interposed therebetween.
次に、かかる構成を有する吸引圧制御手段の作用を第
３図により述べる。Next, the operation of the suction pressure control means having such a configuration will be described with reference to FIG.
通常時はピンチバルブ80の押圧を以て吸引チューブ20
が潰され、従って、通路が閉じ、吸引OFFの状態になっ
ている。又、このとき、リーク弁70は開かれ、分岐管40
が外気に開放される。これにより、吸引ポンプ10による
吸引チューブ20内の吸引圧は、緩和され、低く抑えられ
る（第３図ａ）。Normally, the suction tube 20 is pressed by pressing the pinch valve 80.
Is crushed, so that the passage is closed and the suction is OFF. At this time, the leak valve 70 is opened and the branch pipe 40 is opened.
Is open to the open air. Thereby, the suction pressure in the suction tube 20 by the suction pump 10 is reduced and kept low (FIG. 3A).
そして、吸引を開始する際は、上記ピンチバルブ80の
押圧を解除し、通路を開くと共に、リーク弁70を閉じ
る。このとき、吸引チューブ20内の吸引圧が低いため、
吸引開始時の急激な吸引が回避され、体内壁Ａの吸着が
防止される（第３図ｂ）。Then, when starting suction, the pressing of the pinch valve 80 is released, the passage is opened, and the leak valve 70 is closed. At this time, since the suction pressure in the suction tube 20 is low,
Sudden suction at the start of suction is avoided, and suction of the body wall A is prevented (FIG. 3b).
次いで、吸引を中止する場合は、ピンチバルブ80によ
り、吸引チューブ20を押圧し、通路を閉じると共に、リ
ーク弁70を開く。こうすれば、吸引チューブ20内の吸引
圧が低下するので、吸引時に体内壁Ａを吸着しても、こ
れが容易に解除される（第３図ｃ）。Next, when stopping the suction, the suction tube 20 is pressed by the pinch valve 80 to close the passage and open the leak valve 70. This reduces the suction pressure in the suction tube 20, so that even if the body wall A is sucked during suction, this is easily released (FIG. 3c).
ところで、リーク弁70の開動作は、ピンチバルブ80の
弁体81が、吸引チューブ20を押し潰すと同時に、リーク
弁70の駆動杆71を押し上げることで行われ、同閉動作
は、弁体81が元の位置に復帰し、吸引チューブ20への押
圧を解除するとき、駆動杆71がスプリング74の作用で元
の位置に復帰し、弁体73が分岐管40に連続する通路92の
開口部93を塞ぐことで行われる。Incidentally, the opening operation of the leak valve 70 is performed by the valve body 81 of the pinch valve 80 squeezing the suction tube 20 and simultaneously pushing up the drive rod 71 of the leak valve 70, and the closing operation is performed by the valve body 81. When the valve returns to the original position and the pressing on the suction tube 20 is released, the drive rod 71 returns to the original position by the action of the spring 74, and the valve element 73 opens the passage 92 continuous with the branch pipe 40. This is done by closing 93.
かくして、本実施例の吸引圧制御手段60によれば、既
存のピンチバルブ80を用いた簡単でコンパクトな構造に
より、吸引チューブ20内の吸引圧が容易に制御できる。
又、吸引系管路が内視鏡装置本体の外側にあるため、当
該管路の洗浄が容易にできる。Thus, according to the suction pressure control means 60 of the present embodiment, the suction pressure in the suction tube 20 can be easily controlled by a simple and compact structure using the existing pinch valve 80.
Further, since the suction system pipeline is located outside the endoscope apparatus main body, the pipeline can be easily cleaned.
［発明の効果］ 以上説明したように本発明によれば、吸引開始時の急
激な吸引を抑制して体内壁の吸着を防止でき、或いは体
内壁の吸着を容易に解除できるので、安全性及び作業性
を向上させることができる。[Effects of the Invention] As described above, according to the present invention, it is possible to prevent sudden suction at the start of suction to prevent suction of the body wall, or to easily release suction of the body wall. Workability can be improved.
第１図乃至第３図は本発明の内視鏡装置に係る一実施例
を示すもので、第１図は吸引圧制御手段の横断面図、第
２図は同縦断面図、第３図は吸引圧制御手段の動作説明
図、第４図は従来の吸引圧制御手段の動作説明図であ
る。 10……吸引ポンプ、20……吸引チューブ、 40……分岐管、60……吸引圧制御手段、 70……リーク弁、73,81……弁体、 80……ピンチバルブ。1 to 3 show an embodiment of an endoscope apparatus according to the present invention. FIG. 1 is a cross-sectional view of a suction pressure control means, FIG. 2 is a vertical cross-sectional view of the same, FIG. FIG. 4 is an operation explanatory view of the suction pressure control means, and FIG. 4 is an operation explanatory view of the conventional suction pressure control means. 10 ... suction pump, 20 ... suction tube, 40 ... branch pipe, 60 ... suction pressure control means, 70 ... leak valve, 73, 81 ... valve body, 80 ... pinch valve.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−164935（ＪＰ，Ａ) 特開 平２−277429（ＪＰ，Ａ) 特開 平２−34139（ＪＰ，Ａ) 特開 平１−297037（ＪＰ，Ａ) 特開 昭58−15834（ＪＰ，Ａ) 実開 昭57−79504（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) A61B 1/00 - 1/32 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-164935 (JP, A) JP-A-2-277429 (JP, A) JP-A-2-34139 (JP, A) JP-A-1- 297037 (JP, A) JP-A-58-15834 (JP, A) JP-A-57-79504 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) A61B 1 / 00-1 / 32
Claims (1)
ポンプとを連結し、体内物を吸引するための通路となる
吸引管を有する内視鏡装置において、 前記吸引管に装着されたピンチバルブと、 このピンチバルブより上流側及び下流側の吸引管に接続
され、前記ピンチバルブの開閉動作と反対の動作により
外気に対して開閉するリーク弁を装着した分岐管と、を
具備することを特徴とする内視鏡装置。1. An endoscope apparatus comprising: a suction pipe connected to an endoscope which is inserted into a living body and a suction pump; and a suction pipe serving as a passage for suctioning a substance inside the body. A pinch valve, and a branch pipe connected to a suction pipe upstream and downstream of the pinch valve and equipped with a leak valve that opens and closes to outside air by an operation opposite to the opening and closing operation of the pinch valve. An endoscope device characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224410A JP2984341B2 (en) | 1990-08-28 | 1990-08-28 | Endoscope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224410A JP2984341B2 (en) | 1990-08-28 | 1990-08-28 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04108421A JPH04108421A (en) | 1992-04-09 |
| JP2984341B2 true JP2984341B2 (en) | 1999-11-29 |
Family
ID=16813332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2224410A Expired - Fee Related JP2984341B2 (en) | 1990-08-28 | 1990-08-28 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2984341B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142110A (en) * | 1992-09-16 | 1994-05-24 | Miwa Tec:Kk | Ultrasonic surgery appliance |
-
1990
- 1990-08-28 JP JP2224410A patent/JP2984341B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04108421A (en) | 1992-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |