JP3554441B2 - Endoscope waste liquid scattering prevention equipment - Google Patents

Endoscope waste liquid scattering prevention equipment Download PDF

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Publication number
JP3554441B2
JP3554441B2 JP22387996A JP22387996A JP3554441B2 JP 3554441 B2 JP3554441 B2 JP 3554441B2 JP 22387996 A JP22387996 A JP 22387996A JP 22387996 A JP22387996 A JP 22387996A JP 3554441 B2 JP3554441 B2 JP 3554441B2
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JP
Japan
Prior art keywords
waste liquid
absorbing member
forceps
liquid absorbing
scattering prevention
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
Application number
JP22387996A
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Japanese (ja)
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JPH1057302A (en
Inventor
輝雄 大内
健次郎 大島
Original Assignee
ペンタックス株式会社
健次郎 大島
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ペンタックス株式会社, 健次郎 大島 filed Critical ペンタックス株式会社
Priority to JP22387996A priority Critical patent/JP3554441B2/en
Priority to US08/917,274 priority patent/US5993379A/en
Priority to EP97114742A priority patent/EP0827712B1/en
Priority to DE69729414T priority patent/DE69729414T2/en
Publication of JPH1057302A publication Critical patent/JPH1057302A/en
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Publication of JP3554441B2 publication Critical patent/JP3554441B2/en
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Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
この発明は、鉗子チャンネルの入口からの体腔内汚液の飛散を防止するための内視鏡の汚液飛散防止具に関する。
【0002】
【従来の技術】
内視鏡には一般に、処置具類を通すための鉗子チャンネルが挿入部内に挿通されていて、その先端出口は挿入部の先端において開口し、基端入口は操作部において開口している。
【0003】
ただし、そのままでは、体腔内の圧力によって体腔内の汚液が鉗子チャンネル内を通って操作部側の入口開口から噴出し、術者やその周囲を汚染してしまうことになる。
【0004】
そこで、そのような汚液噴出を阻止し、且つ鉗子チャンネルに対する処置具の挿脱を行うことができるように、鉗子チャンネルの入口開口部には、例えばスリットが形成されたゴム弁からなるいわゆる鉗子栓が装着されている。
【0005】
【発明が解決しようとする課題】
しかし、鉗子栓に処置具が通されると、ゴム弁のスリットが押し広げられてスリットの端の方の部分では処置具の外周面との間に隙間ができ、その部分から汚液が噴出する場合が少なくない。特に、コイルパイプをシースとする処置具の場合は、外周面に螺旋状に隙間があるので汚液が噴出し易い。
【0006】
また、シース内に操作ワイヤ等が進退自在に挿通された処置具の場合には、シースと操作ワイヤとの間に隙間があるので、その部分を通って汚液が噴出する場合がある。
【0007】
そのようにして、体腔内汚液が鉗子チャンネルの入口側から噴出すると、術者の顔や手に汚液がかかったり、周囲に飛散して非常に不衛生な状態になってしまう場合があるが、そのような体腔内汚液の噴出を完全に防止するのは困難である。
【0008】
そこで本発明は、鉗子栓から体腔内汚液の噴出があっても、汚液がそこから外方に飛び散らず、内視鏡検査を衛生的に行うことができる内視鏡の汚液飛散防止具を提供することを目的とする。
【0009】
【課題を解決するための手段】
上記の目的を達成するため、本発明の内視鏡の汚液飛散防止具は、通常は閉じていて挿入される処置具によって押し開かれるように鉗子チャンネルの入口側端部に配置された鉗子栓の入口に対向して、吸水性材料からなる汚液吸収部材を、上記処置具が上記汚液吸収部材の内部に密接しながら通過できるように配置したことを特徴とする。
【0010】
なお、上記汚液吸収部材が連続発泡体によって形成されていてもよい。また、上記汚液吸収部材と上記鉗子栓との間が着脱自在に設けられていてもよく、上記汚液吸収部材が、上記鉗子栓と一体のユニットとして設けられていてもよい。
【0011】
また、上記汚液吸収部材が複数の片に分割形成されていて、上記鉗子栓に挿脱される処置具が上記汚液吸収部材の分割面を押し広げながら通過するようにしてもよく、上記汚液吸収部材が、一つのブロックとして形成されていて、上記鉗子栓に挿入される処置具が上記汚液吸収部材を穿孔しながら通過するようにしてもよい。
【0012】
【発明の実施の形態】
図面を参照して本発明の実施の形態を説明する。
図3において、1は内視鏡の操作部であり、その下端部に、体腔内に挿入される挿入部2が連結されている。
【0013】
挿入部2内には、その先端に出口が開口する鉗子チャンネル4が全長にわたって挿通配置されている。そして、鉗子チャンネル4の入口側端部は、操作部1の下端部に斜め上方に向けて突設された突出部3の先端に開口形成された処置具挿入口5に連通している。
【0014】
処置具挿入口5の口元部分には、通常は閉じていて、処置具挿入口5から鉗子チャンネル4内へ処置具が挿通されたときだけ押し開かれる鉗子栓6が配置されている。
【0015】
図1は処置具挿入口5部分を拡大して示しており、鉗子栓6は、弾力性のあるゴム材によって形成されている。鉗子栓6の中央部分は処置具挿入口5内に滑らかに入り込んでいて、中央部分にスリット6aが形成されている。
【0016】
処置具挿入口5部分に操作部1側から突設された口金7には、鉗子栓6が係合する鍔が突端部分に形成されていて、鉗子栓6は、そこに密着して被さる形状に形成されている。そして、鉗子栓6は弾力性があるので、口金7に対して変形させながら自由に着脱することができる。
【0017】
さらにその鉗子栓6に対して着脱自在に、鉗子栓6のスリット6aから外方に漏出する汚液が外部に飛散するのを防止するための汚液飛散防止具10が設けられている。
【0018】
汚液飛散防止具10は、中央に孔11aのあいたキャップ状に形成されたプラスチック製のケース11内に、吸水性と弾力性のある例えばスポンジのような連続発泡体からなる汚液吸収部材12が嵌め込まれて形成されている。
【0019】
汚液吸収部材12は、図2に示されるように、例えば短円柱状の部材を軸線を通る平面12aで縦に2分割して形成されており、図1に示されるように、鉗子栓6と中心軸位置を合わせて、鉗子栓6の入口に対向して位置している。汚液吸収部材12の半部どうしは間に隙間ができないように密着した状態になっている。なお、汚液吸収部材12を3分割以上に分割してもよい。
【0020】
鉗子栓6の外周面には、汚液飛散防止具10のケース11が係合する鍔6bが突設されていて、汚液飛散防止具10のケース11は、そこに密着して被さる形状に形成されている。そして、鉗子栓6は弾力性があるので、ケース11に対して変形させながら自由に着脱することができる。
【0021】
このように形成された実施の形態においては、体腔内の汚液が体腔内圧の上昇によって鉗子チャンネル4から鉗子栓6のスリット6aを通って外部に漏出するような場合があっても、スリット6aのすぐ外側に配置された汚液吸収部材12によって漏出汚液が吸収され、その汚液はケース11内に留められる。
【0022】
そして、処置具を使用する際には、処置具はケース11の孔11aから汚液吸収部材12の分割面12aの間を、汚液吸収部材12を押し広げながら分割面12aに密接した状態で通り、さらに鉗子栓6のスリット6aを押し広げながら処置具挿入口5から鉗子チャンネル4内に挿入される。
【0023】
そのように鉗子栓6に処置具が挿通された状態では、スリット6aからの汚液の漏出量が増加するが、その場合でも漏出汚液は汚液吸収部材12に吸収され、ケース11内に留められる。
【0024】
処置具が再び抜去された後は、鉗子栓6のスリット6a及び汚液吸収部材12の分割面12a共に各々自己の弾力性によって閉じ、処置具挿入前と同じ状態に戻る。
【0025】
図4は本発明の第2の実施の形態を示しており、汚液吸収部材12を、脆い吸水性材料(例えば発泡倍率が高く密度が粗なスポンジ等)により一つのブロック状に形成したものである。
【0026】
この場合には、挿入される処置具によって汚液吸収部材12が穿設されて、第1の実施の形態と同様の使用をすることができ、鉗子栓6のスリット6aから漏出する汚液が、汚液吸収部材12によって吸収されてケース11内に留められる。
【0027】
図5は本発明の第3の実施の形態を示しており、汚液飛散防止具10のケース11と鉗子栓6とをゴム材で一体に形成して、その中に汚液吸収部材12を嵌め込み、鉗子栓6と汚液飛散防止具10を、処置具挿入口5の口金に対して着脱自在な一つのユニット状に構成したものである。なお、汚液吸収部材12は第1の実施の形態と同様に2分割になっているが、第2の実施の形態と同様に一体物を用いてもよい。
【0028】
このように構成することによって、汚液の外部への漏れがさらに減少すると同時に、部品点数が少なくなるので、製造コストが下がって使い捨てにする場合の経済性が向上する。
【0029】
【発明の効果】
本発明によれば、鉗子チャンネルの入口側端部に配置された鉗子栓の入口に対向して、吸水性料からなる汚液吸収部材を、処置具が汚液吸収部材の内部に密接しながら通過できるように配置したことにより、鉗子栓から体腔内汚液の噴出があってもそれを吸収することができるので、汚液がそこから外方に飛び散らず、内視鏡検査を衛生的に行うことができる。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態の内視鏡の汚液飛散防止具の縦断面図である。
【図2】本発明の第1の実施の形態の汚液吸収部材の斜視図である。
【図3】本発明の第1の実施の形態の内視鏡の操作部の一部を断面で示す側面図である。
【図4】本発明の第2の実施の形態の内視鏡の汚液飛散防止具の縦断面図である。
【図5】本発明の第3の実施の形態の内視鏡の汚液飛散防止具の縦断面図である。
【符号の説明】
1 操作部
4 鉗子チャンネル
5 処置具挿入口
6 鉗子栓
10 汚液飛散防止具
11 ケース
12 汚液吸収部材
[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste liquid scattering prevention device for an endoscope for preventing waste liquid in a body cavity from scattering from an inlet of a forceps channel.
[0002]
[Prior art]
In general, a forceps channel for passing treatment tools is inserted into the insertion portion of the endoscope, and a distal end outlet of the forceps channel is opened at a distal end of the insertion portion, and a base end entrance is opened at the operation portion.
[0003]
However, as it is, the pressure in the body cavity causes the waste fluid in the body cavity to flow through the forceps channel from the inlet opening on the operation unit side, thereby contaminating the operator and its surroundings.
[0004]
Therefore, the so-called forceps made of, for example, a rubber valve having a slit is formed at the inlet opening of the forceps channel so as to prevent such discharge of the waste fluid and to allow the treatment tool to be inserted into and removed from the forceps channel. A stopper is attached.
[0005]
[Problems to be solved by the invention]
However, when the treatment tool is passed through the forceps plug, the slit of the rubber valve is pushed open and a gap is created between the end of the slit and the outer peripheral surface of the treatment tool, and contaminants are ejected from that part. There are many cases. In particular, in the case of a treatment tool having a coil pipe as a sheath, since there is a spiral gap on the outer peripheral surface, the waste liquid is easily ejected.
[0006]
Further, in the case of a treatment tool in which an operation wire or the like is inserted into the sheath so as to be able to advance and retreat, there is a gap between the sheath and the operation wire.
[0007]
In this way, if the intracorporeal contaminant spouts from the inlet side of the forceps channel, the contaminant may be applied to the operator's face or hand or scattered around, resulting in a very unsanitary condition. However, it is difficult to completely prevent the ejection of such intracorporeal waste fluid.
[0008]
Therefore, the present invention provides a method for preventing endoscope waste liquid from being scattered out of the endoscope, even if there is a discharge of waste liquid in the body cavity from the forceps stopper, which makes it possible to perform an endoscope inspection in a sanitary manner. The purpose is to provide tools.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a waste fluid scattering prevention device for an endoscope according to the present invention includes a forceps disposed at an entrance end of a forceps channel so as to be pushed and opened by a treatment tool which is normally closed and inserted. The wastewater absorbing member made of a water-absorbing material is disposed so as to be able to pass through the wastewater absorbing member in close contact with the inside of the wastewater absorbing member, facing the inlet of the stopper.
[0010]
Note that the waste liquid absorbing member may be formed of a continuous foam. Further, the waste liquid absorbing member and the forceps plug may be provided detachably, and the waste liquid absorbing member may be provided as a unit integral with the forceps plug.
[0011]
Further, the waste liquid absorbing member may be divided into a plurality of pieces, and the treatment tool inserted into and removed from the forceps plug may pass while spreading the divided surface of the waste liquid absorbing member. The waste liquid absorbing member may be formed as one block, and the treatment tool inserted into the forceps plug may pass through the waste liquid absorbing member while piercing.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
In FIG. 3, reference numeral 1 denotes an operation section of the endoscope, and an insertion section 2 to be inserted into a body cavity is connected to a lower end of the operation section.
[0013]
In the insertion portion 2, a forceps channel 4 having an opening at the tip thereof is inserted and arranged over the entire length. The inlet-side end of the forceps channel 4 communicates with a treatment tool insertion opening 5 formed at the tip of a projection 3 projecting obliquely upward from the lower end of the operation unit 1.
[0014]
A forceps stopper 6 which is normally closed and which is pushed and opened only when a treatment tool is inserted from the treatment tool insertion port 5 into the forceps channel 4 is arranged at a mouth portion of the treatment tool insertion port 5.
[0015]
FIG. 1 shows the treatment instrument insertion port 5 in an enlarged manner, and the forceps stopper 6 is formed of an elastic rubber material. The central portion of the forceps plug 6 smoothly enters the treatment instrument insertion port 5, and a slit 6a is formed in the central portion.
[0016]
A flange 7 for projecting from the operation unit 1 side to the treatment instrument insertion port 5 has a flange for engaging the forceps plug 6 formed at the protruding end portion. Is formed. Since the forceps stopper 6 has elasticity, it can be freely attached to and detached from the base 7 while being deformed.
[0017]
Further, a waste liquid scattering prevention device 10 is provided so as to be detachable from the forceps stopper 6 to prevent the waste liquid leaking outward from the slit 6a of the forceps stopper 6 from scattering outside.
[0018]
A sewage scattering prevention device 10 is provided with a sewage absorbing member 12 made of a continuous foam such as a sponge having water absorbency and elasticity in a plastic case 11 formed in a cap shape having a hole 11a in the center. Is formed by fitting.
[0019]
As shown in FIG. 2, the waste liquid absorbing member 12 is formed by, for example, vertically dividing a short columnar member into two by a plane 12a passing through the axis. As shown in FIG. And the center axis position thereof, and is located opposite to the entrance of the forceps plug 6. The half portions of the waste liquid absorbing members 12 are in close contact with each other so that there is no gap between them. The waste liquid absorbing member 12 may be divided into three or more parts.
[0020]
On the outer peripheral surface of the forceps plug 6, a flange 6b with which the case 11 of the sewage scattering prevention tool 10 engages is protrudingly provided. Is formed. Since the forceps stopper 6 has elasticity, the forceps stopper 6 can be freely attached to and detached from the case 11 while being deformed.
[0021]
In the embodiment formed in this manner, even if the waste fluid in the body cavity leaks from the forceps channel 4 to the outside through the slit 6a of the forceps plug 6 due to an increase in the body cavity pressure, the slit 6a The leaked sewage is absorbed by the sewage absorbing member 12 disposed just outside the, and the sewage is retained in the case 11.
[0022]
Then, when using the treatment tool, the treatment tool is in close contact with the division surface 12a while pushing and spreading the waste liquid absorption member 12 between the hole 11a of the case 11 and the division surface 12a of the waste liquid absorption member 12. As described above, the slit 6a of the forceps plug 6 is further inserted into the forceps channel 4 from the treatment instrument insertion port 5 while expanding the slit 6a.
[0023]
In such a state where the treatment tool is inserted into the forceps stopper 6, the amount of leakage of the waste liquid from the slit 6a increases, but even in such a case, the leaked waste liquid is absorbed by the waste liquid absorbing member 12, and Can be fastened.
[0024]
After the treatment tool is removed again, both the slit 6a of the forceps plug 6 and the divided surface 12a of the waste liquid absorbing member 12 are closed by their own elasticity, and return to the same state as before the insertion of the treatment tool.
[0025]
FIG. 4 shows a second embodiment of the present invention, in which the waste liquid absorbing member 12 is formed in a single block shape from a brittle water-absorbing material (for example, a sponge having a high expansion ratio and a low density). It is.
[0026]
In this case, the wastewater absorbing member 12 is pierced by the inserted treatment tool, and the same use as in the first embodiment can be performed, and the wastewater leaking from the slit 6a of the forceps plug 6 is removed. The liquid is absorbed by the waste liquid absorbing member 12 and retained in the case 11.
[0027]
FIG. 5 shows a third embodiment of the present invention, in which a case 11 and a forceps stopper 6 of a waste liquid scattering prevention device 10 are integrally formed of a rubber material, and a waste liquid absorbing member 12 is provided therein. The fitting, the forceps plug 6 and the waste liquid scattering prevention tool 10 are configured as a single unit detachable from the base of the treatment tool insertion port 5. Although the waste liquid absorbing member 12 is divided into two parts as in the first embodiment, an integral member may be used as in the second embodiment.
[0028]
With this configuration, the leakage of the waste liquid to the outside is further reduced, and the number of components is reduced, so that the manufacturing cost is reduced and the economical efficiency of disposables is improved.
[0029]
【The invention's effect】
According to the present invention, the wastewater absorbing member made of a water-absorbing material is brought into close contact with the inside of the wastewater absorbing member, while facing the inlet of the forceps stopper disposed at the inlet end of the forceps channel. By arranging it so that it can pass through, even if there is spout of filth in the body cavity from the forceps plug, it can be absorbed, so that sewage does not scatter outside from there, and sanitary endoscopy can be performed hygienically. It can be carried out.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a waste liquid scattering prevention device of an endoscope according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the waste liquid absorbing member according to the first embodiment of the present invention.
FIG. 3 is a side view showing a part of the operation unit of the endoscope according to the first embodiment of the present invention in cross section.
FIG. 4 is a longitudinal sectional view of a waste liquid scattering prevention device of an endoscope according to a second embodiment of the present invention.
FIG. 5 is a longitudinal sectional view of a waste liquid scattering prevention device of an endoscope according to a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Operation part 4 Forceps channel 5 Treatment tool insertion port 6 Forceps stopper 10 Spillage prevention device 11 Case 12 Soil absorption member

Claims (6)

通常は閉じていて挿入される処置具によって押し開かれるように鉗子チャンネルの入口側端部に配置された鉗子栓の入口に対向して、吸水性材料からなる汚液吸収部材を、上記処置具が上記汚液吸収部材の内部に密接しながら通過できるように配置したことを特徴とする内視鏡の汚液飛散防止具。The waste liquid absorbing member made of a water-absorbing material is opposed to an inlet of a forceps stopper arranged at an inlet-side end of a forceps channel so as to be pushed and opened by a treatment tool which is normally closed and inserted, and the treatment tool Is disposed so as to pass through the inside of the waste liquid absorbing member in close contact with the waste liquid absorbing member. 上記汚液吸収部材が連続発泡体によって形成されている請求項1記載の内視鏡の汚液飛散防止具。The waste liquid scattering prevention device for an endoscope according to claim 1, wherein the waste liquid absorbing member is formed of a continuous foam. 上記汚液吸収部材と上記鉗子栓との間が着脱自在に設けられている請求項1又は2記載の内視鏡の汚液飛散防止具。The waste liquid scattering prevention device for an endoscope according to claim 1 or 2, wherein a portion between the waste liquid absorbing member and the forceps stopper is detachably provided. 上記汚液吸収部材が、上記鉗子栓と一体のユニットとして設けられている請求項1又は2記載の内視鏡の汚液飛散防止具。The waste liquid scattering prevention device for an endoscope according to claim 1 or 2, wherein the waste liquid absorbing member is provided as a unit integral with the forceps stopper. 上記汚液吸収部材が複数の片に分割形成されていて、上記鉗子栓に挿脱される処置具が上記汚液吸収部材の分割面を押し広げながら通過する請求項1、2、3又は4記載の内視鏡の汚液飛散防止具。5. The waste liquid absorbing member is divided into a plurality of pieces, and the treatment tool inserted into and removed from the forceps stopper passes while spreading the divided surface of the waste liquid absorbing member. A waste liquid scattering prevention device for an endoscope according to the above. 上記汚液吸収部材が一つのブロックとして形成されていて、上記鉗子栓に挿入される処置具が上記汚液吸収部材を穿孔しながら通過する請求項1、2、3又は4記載の内視鏡の汚液飛散防止具。5. The endoscope according to claim 1, wherein the waste liquid absorbing member is formed as a single block, and a treatment tool inserted into the forceps plug passes through the waste liquid absorbing member while piercing. Sewage scattering prevention equipment.
JP22387996A 1996-02-25 1996-08-26 Endoscope waste liquid scattering prevention equipment Expired - Fee Related JP3554441B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP22387996A JP3554441B2 (en) 1996-08-26 1996-08-26 Endoscope waste liquid scattering prevention equipment
US08/917,274 US5993379A (en) 1996-02-25 1997-08-25 Fluid splashing preventive device
EP97114742A EP0827712B1 (en) 1996-08-26 1997-08-26 Fluid splashing preventive device
DE69729414T DE69729414T2 (en) 1996-08-26 1997-08-26 Device for preventing liquid splashes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22387996A JP3554441B2 (en) 1996-08-26 1996-08-26 Endoscope waste liquid scattering prevention equipment

Publications (2)

Publication Number Publication Date
JPH1057302A JPH1057302A (en) 1998-03-03
JP3554441B2 true JP3554441B2 (en) 2004-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP22387996A Expired - Fee Related JP3554441B2 (en) 1996-02-25 1996-08-26 Endoscope waste liquid scattering prevention equipment

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JP (1) JP3554441B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102653337B1 (en) * 2018-11-02 2024-04-01 보스톤 싸이언티픽 리미티드 Devices, systems, and methods providing sealable access to a working channel
DE112021002799T5 (en) 2020-05-08 2023-04-20 Fujifilm Corporation ENDOSCOPE FORCEPS VALVE COVER

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JPH1057302A (en) 1998-03-03

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