JPH0557848B2 - - Google Patents
Info
- Publication number
- JPH0557848B2 JPH0557848B2 JP60109573A JP10957385A JPH0557848B2 JP H0557848 B2 JPH0557848 B2 JP H0557848B2 JP 60109573 A JP60109573 A JP 60109573A JP 10957385 A JP10957385 A JP 10957385A JP H0557848 B2 JPH0557848 B2 JP H0557848B2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- forceps plug
- main body
- endoscope
- forceps
- 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 - Lifetime
Links
- 238000011282 treatment Methods 0.000 claims description 25
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 238000005452 bending Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内視鏡の処置具挿入用チヤンネルの挿
入口を閉塞するための内視鏡用鉗子栓に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an endoscope forceps plug for closing an insertion opening of a treatment tool insertion channel of an endoscope.
一般に、内視鏡を用いた医療検査および手術等
においては、内視鏡を通して患者の体内に薬液を
注入したり、病変部位を切除・採取するといつた
種々の処置を行つている。このため、内視鏡には
上記処置をするための処置具を挿通する鉗子チヤ
ンネルが設けられているが、体腔内圧の変化によ
つて体腔内の空気や汚物が鉗子チヤンネルを通つ
て外部へ洩れ出すことがある。このため、鉗子挿
入口に鉗子栓を設けて、空気や汚物の洩出を防止
している。この鉗子栓はゴムなどの弾性材料で作
られ、処置具を挿通するためのスリツトが設けら
れている。このスリツトは通常気密に閉じてい
て、処置具を押し当てることによつて開き、処置
具をチヤンネル内に挿通することができる。
Generally, in medical examinations, surgeries, etc. using endoscopes, various treatments are performed, such as injecting a medical solution into a patient's body through the endoscope, or removing and collecting a lesion. For this reason, endoscopes are equipped with a forceps channel through which the treatment tools for performing the above treatments are inserted, but due to changes in the pressure inside the body cavity, air and dirt inside the body cavity leak through the forceps channel to the outside. Sometimes it comes out. For this reason, a forceps plug is provided in the forceps insertion port to prevent air and dirt from leaking out. This forceps plug is made of an elastic material such as rubber, and is provided with a slit through which a treatment tool is inserted. This slit is normally closed airtight, and can be opened by pressing the treatment tool against it, allowing the treatment tool to be inserted into the channel.
しかし、スリツトの場合、処置具挿通時に鉗子
栓からのもれがあるため、さらに、中央に処置具
の径より小さい径の孔を設けた弾性部材を加えて
気密にする方法が特開昭59−14837号公報に開示
されている。 However, in the case of slits, there is a possibility of leakage from the forceps plug when inserting the treatment instrument, so a method was proposed in Japanese Patent Laid-Open No. 59/1983 by adding an elastic member with a hole smaller in diameter than the diameter of the treatment instrument in the center. -Disclosed in Publication No. 14837.
この鉗子栓は中央部に処置具の径より小さい孔
を開設した弾性栓と、中央部にスリツトを形成し
た弾性栓とを重ね合せる構成とし、さらに、これ
らを一対の締付けリングによつて挟持し、固定リ
ングによつて固定してなるものである。しかし、
この方法では、２つの弾性栓を用いるので部品点
数が増え、高価になり、組み込みが煩雑で２つの
弾性栓の間を洗滌しにくいという欠点があつた。
This forceps plug has a structure in which an elastic plug with a hole smaller than the diameter of the treatment instrument in the center and an elastic plug with a slit in the center are stacked on top of each other, and these are sandwiched between a pair of tightening rings. , which is fixed by a fixing ring. but,
This method uses two elastic plugs, which increases the number of parts, increases the cost, complicates installation, and makes it difficult to clean between the two elastic plugs.
そこで、処置具挿入口を閉塞するための鉗子栓
を弾性材により処置具の径より長いスリツトを有
するスリツト部と、処置具の径より小さい径の孔
を有する小孔部とを連結部によつて連結して構成
した考案が先願（実願昭59−139279号公報）とし
て提供されている。 Therefore, the forceps plug for closing the treatment instrument insertion port is connected using an elastic material to connect the slit part, which has a slit longer than the diameter of the treatment instrument, and the small hole part, which has a hole smaller in diameter than the diameter of the treatment instrument. A device constructed by connecting the two has been proposed as an earlier application (Utility Application No. 139279/1983).
しかしながら、ふた部となるスリツト部を閉じ
てある場合において、内視鏡に接続されている吸
引装置の吸引作用を中止した直後、被吸引流体の
水撃作用による圧力が鉗子栓のふた側部分にかか
り、その水撃圧力によりふた部分がはずれ易い不
具合がある。そして、このふた側部分がはずれた
場合には、汚物が術者のみならず患者にかかり、
はなはだ不潔であつた。また、このふた側部分の
はずれを防止するためにふた側部分の嵌合を強く
した場合は、術者がこれを開閉するのに困難をき
たし、ふた部を設けた利点を活かしきれない。 However, when the slit part that becomes the lid part is closed, immediately after the suction action of the suction device connected to the endoscope is stopped, pressure due to the water hammer effect of the fluid to be aspirated is applied to the lid side part of the forceps plug. However, there is a problem that the lid part easily comes off due to the water hammer pressure. If this lid side part comes off, the filth will fall not only on the operator but also on the patient.
It was extremely filthy. Further, if the lid side portion is tightly fitted to prevent the lid side portion from coming off, it will be difficult for the operator to open and close it, and the advantage of providing the lid portion cannot be fully utilized.
本発明はこのような問題点に着目してなされた
もので、ふた体の開閉操作が容易でありながら被
吸引流体の撃圧作用によるふた体の外れを防止す
ることを目的とする。 The present invention has been made in view of these problems, and an object of the present invention is to prevent the lid from coming off due to the impact pressure of the fluid to be aspirated, while making it easy to open and close the lid.
鉗子栓２４の本体２７に設けた弁部３６が挿通
チヤンネル内側からの撃圧により変形しその弁部
３６に形成した挟面３７が上記本体２７の開口部
３１に嵌合したふた体２８を開口部３１内周面と
の間で挟み込み、ふた体２８の外れを防止する。
The valve part 36 provided on the main body 27 of the forceps plug 24 is deformed by impact pressure from inside the insertion channel, and the pinched surface 37 formed on the valve part 36 opens the lid body 28 fitted into the opening 31 of the main body 27. It is sandwiched between the inner circumferential surface of the portion 31 and prevents the lid 28 from coming off.
第１図ないし第３図は本発明の第１の実施例を
示すものである。第２図は内視鏡全体を示してい
る。内視鏡本体１０は操作部１２と挿入部１４と
からなり、操作部１２にはユニバーサルコード１
５が連結され、その先端は図示しない光源に接続
される。また、挿入部１４の先端には湾曲部１６
を介して先端構成部１８が連結してなり、上記湾
曲部１６は操作部１２に設けた図示しないアング
ル操作ノブにより遠隔的に湾曲操作ができるよう
になつている。さらに、操作部１２には、鉗子等
の処置具３９を挿入するための処置具挿入口２０
をもつ挿入口体２１が設けられ、この挿入口体２
１には挿入部１４、湾曲部１６の内部を通つて先
端構成部１８の先端に一端が開口する挿通チヤン
ネル２２の他端が接続されている。なお、挿入口
体２１には処置具挿入口２０を閉塞する鉗子栓２
４が設けられている。
1 to 3 show a first embodiment of the present invention. FIG. 2 shows the entire endoscope. The endoscope main body 10 consists of an operating section 12 and an insertion section 14, and the operating section 12 has a universal cord 1.
5 are connected, and the tip thereof is connected to a light source (not shown). In addition, a curved portion 16 is provided at the tip of the insertion portion 14.
A distal end component 18 is connected to the bending portion 16 via the bending portion 16, and the bending portion 16 can be remotely operated by an angle operation knob (not shown) provided on the operation portion 12. Furthermore, the operation section 12 includes a treatment instrument insertion port 20 for inserting a treatment instrument 39 such as forceps.
An insertion port body 21 is provided, and this insertion port body 2
1 is connected to the other end of an insertion channel 22 which passes through the insertion portion 14 and the curved portion 16 and has one end open at the distal end of the distal end forming portion 18 . Note that the insertion port body 21 is provided with a forceps plug 2 for closing the treatment instrument insertion port 20.
4 is provided.
上記鉗子栓２４は第１図で示すように構成され
ている。すなわち、鉗子栓２４は本体２７とふた
体２８とからなり、これらはシリコンゴム、ふつ
素ゴム、ニトリルブチルゴムなどの弾性材料で作
られている。本体２７はほぼ筒状に形成され、そ
の一端側部分は挿入口体２１の外端部に形成され
るフランジ部２９に対し着脱自在に嵌着する取付
け開口端３０を形成する。また、本体２７の他端
側部分は上記ふた体２８を着脱自在に嵌合する開
口部３１が形成される。この開口部３１の外方端
内周部分は内方へ突き出す縁部３２を形成してお
り、この縁部３２はふた体２８の嵌合部３３のく
び部に形成した周回溝３４に嵌り込んで係着する
ようになつている。また、ふた体２８の嵌合部３
３の先端外周部分は周回溝３４を形成した分逆に
外方に突き出して突縁部３５を形成する。 The forceps plug 24 is constructed as shown in FIG. That is, the forceps plug 24 consists of a main body 27 and a lid 28, which are made of an elastic material such as silicone rubber, fluorine rubber, or nitrile butyl rubber. The main body 27 is formed into a substantially cylindrical shape, and one end thereof forms an attachment opening end 30 that is detachably fitted to a flange portion 29 formed at the outer end of the insertion port body 21. Further, the other end side portion of the main body 27 is formed with an opening 31 into which the lid 28 is removably fitted. The inner peripheral portion of the outer end of this opening 31 forms an edge 32 that projects inward, and this edge 32 fits into a circumferential groove 34 formed in the neck of a fitting portion 33 of the lid 28. It is becoming more crowded and attached. In addition, the fitting part 3 of the lid body 28
The outer circumferential portion of the tip of No. 3 protrudes outward to form a protruding edge portion 35 by an amount corresponding to the circumferential groove 34 formed therein.
上記本体２７の内孔中途部には環状に突出形成
される比較的薄肉の弁部３６が設けられている。
この弁部３６には上記ふた体２８の内方端面に突
き当る突部４０が形成されており、この突部４０
の先端面により挟面３７形成している。また、こ
の挟面３７の位置は開口部３１の縁部３２と対向
してこの間にふた体２８を挟み込めるように設定
してある。この実施例においては特に嵌合部３３
の突縁部３５の根元部分あるいはこれよりふた体
２８の中心側に位置する部分を挟み込めるように
なつている。 A relatively thin valve portion 36 is provided in the middle of the inner hole of the main body 27 and protrudes in an annular shape.
This valve portion 36 is formed with a protrusion 40 that abuts against the inner end surface of the lid 28.
A pincer surface 37 is formed by the tip end surface of the tube. Further, the position of the sandwiching surface 37 is set so as to face the edge 32 of the opening 31 so that the lid 28 can be sandwiched therebetween. In this embodiment, especially the fitting part 33
The base portion of the projecting edge portion 35 or the portion located closer to the center of the lid body 28 than this portion can be inserted.
また、上記弁部３６中央には鉗子等の処置具３
９を挿入できる小孔３８が形成されている。 In addition, a treatment tool 3 such as forceps is provided at the center of the valve portion 36.
A small hole 38 into which 9 can be inserted is formed.
しかして、処置具３９を使用するときにはふた
体２８を取り外し、その弁部３６の小孔３８を通
じて処置具３９を挿入する。 Therefore, when using the treatment instrument 39, the lid 28 is removed and the treatment instrument 39 is inserted through the small hole 38 of the valve portion 36.
また、処置具使用時以外は第２図に示すように
ふた体２８を本体２７の開口部３１に嵌合して装
着する。そして、このようにふた体２８を装着し
た場合において、内視鏡の吸引動作停止時あるい
は患者の胃内圧等によりふた体２８に撃圧が加わ
ることがある。しかし、このときその撃圧は同時
に弁部３６にも加わり変形しその挟面３７と開口
部３１の縁部３２との間でふた体２８を挟み込み
保持する。したがつて、ふた体２８の外れを防止
する。 In addition, when the treatment instrument is not in use, the lid 28 is fitted into the opening 31 of the main body 27 as shown in FIG. 2. When the lid 28 is attached in this manner, impact pressure may be applied to the lid 28 when the suction operation of the endoscope is stopped or due to intragastric pressure of the patient. However, at this time, the striking force is simultaneously applied to the valve portion 36 and deforms, and the lid body 28 is sandwiched and held between its sandwiching surface 37 and the edge 32 of the opening portion 31. Therefore, the lid 28 is prevented from coming off.
撃圧の加わらない通常の場合においてそのふた
体２８を外すときには弁部３６により強く挟み込
まれることがないので容易に外せる。また、ふた
体２８を嵌め込むときにも同様の理由で容易に装
着できる。つまり、ふた体２８の開閉が容易であ
る。 When removing the lid 28 in a normal case where no impact pressure is applied, the lid 28 can be easily removed because it is not strongly pinched by the valve portion 36. Moreover, when fitting the lid body 28, it can be easily attached for the same reason. In other words, the lid body 28 can be opened and closed easily.
第４図は本発明の第２の実施例を示すものであ
る。この実施例は第１の実施例におけるふた体２
８の中央部を薄肉に形成し、この中心には−、＋
あるいはＹの字状で処置具の外径より長いスリツ
ト４１を形成したものである。また、中央部を薄
肉に形成するため、ふた体２８の外面部には半球
状の凹部４２を形成し、また、内面部にはそれに
沿う半球状の凹部４３を形成する。この実施例に
よれば、ふた体２８を取り外すことなくそのスリ
ツト４１を通じて処置具３９を挿通できる。ま
た、ふた体２８を取り外せばより軽く処置具３９
を挿通できる。 FIG. 4 shows a second embodiment of the invention. This embodiment is based on the lid 2 in the first embodiment.
The center part of 8 is made thin, and -, +
Alternatively, a slit 41 is formed in a Y-shape and longer than the outer diameter of the treatment instrument. Further, in order to form a thin central portion, a hemispherical recess 42 is formed on the outer surface of the lid 28, and a hemispherical recess 43 along the inner surface is formed along the inner surface. According to this embodiment, the treatment tool 39 can be inserted through the slit 41 without removing the lid 28. Also, if the lid body 28 is removed, the treatment tool 39 will be lighter.
can be inserted.
第５図ないし第７図は本発明の第３の実施例を
示すものである。この実施例は第２の実施例にお
いて本体２７とふた体２８とを湾曲自在な連結部
４５によつて連結したものである。この連結部４
５は本体２７とふた体２８の各側面に接続され、
これらは一体化部品となつている。また、連結部
４５の断面はほぼ矩形状である。このように連結
部４５を設けることにより外したふた体２８を手
などで保持している必要がなく、また、紛失のお
それもない。 5 to 7 show a third embodiment of the present invention. In this embodiment, the main body 27 and the lid 28 are connected by a bendable connecting portion 45 in the second embodiment. This connecting part 4
5 is connected to each side of the main body 27 and the lid 28,
These are integrated parts. Further, the cross section of the connecting portion 45 is approximately rectangular. By providing the connecting portion 45 in this way, there is no need to hold the removed lid 28 by hand, and there is no fear of losing it.
第８図は本発明の第４の実施例を示すものであ
る。この実施例は第３の実施例において弁部３６
と突部３０がふた体２８に当らないようにするた
め、逃げ用凹部４８を形成したものである。これ
によると、通常は挟面３７部分がふた体２８に干
渉しないため、そのふた体２８の開閉が容易であ
る。もつとも、撃圧を受けたときは弁部３６が変
形して上記同様の保持作用を行なう。 FIG. 8 shows a fourth embodiment of the present invention. This embodiment is the third embodiment in which the valve portion 36
In order to prevent the protrusion 30 from hitting the lid 28, an escape recess 48 is formed. According to this, since the pinched surface 37 portion does not normally interfere with the lid 28, the lid 28 can be opened and closed easily. However, when receiving impact pressure, the valve portion 36 deforms and performs the same holding action as described above.
第９図は本発明の第５の実施例を示すものであ
る。この実施例は逃げ用の凹部４９を周回溝とし
たものである。 FIG. 9 shows a fifth embodiment of the present invention. In this embodiment, the escape recess 49 is a circumferential groove.
第１０図は本発明の第６の実施例を示すもので
ある。この実施例はふた体２８の内端周部にリン
グ状に配置した突部５０を形成し、この突部５０
に対応して本体２７側にはその突部５０が遊嵌す
る凹部５１を形成したものである。 FIG. 10 shows a sixth embodiment of the present invention. In this embodiment, a ring-shaped protrusion 50 is formed around the inner end of the lid 28.
Correspondingly, a recess 51 is formed on the main body 27 side, into which the protrusion 50 fits loosely.
第１１図は本発明の第７の実施例を示すもので
ある。この実施例は第５の実施例におけるふた体
２８に、２段の薄肉部５２，５３を形成し、外側
の薄肉部５２には処置具の外径より小さい小孔５
４を貫通して設けるとともに、内側の薄肉部５３
には−、＋あるいはＹ字状のスリツト５５を貫通
して設けたものである。これによると弁機能をも
つ部分は多くなり漏れにくくなる。 FIG. 11 shows a seventh embodiment of the present invention. In this embodiment, the lid body 28 in the fifth embodiment is formed with two stages of thin-walled parts 52 and 53, and the outer thin-walled part 52 has a small hole 5 smaller than the outer diameter of the treatment instrument.
4 and is provided through the inner thin wall portion 53.
A -, + or Y-shaped slit 55 is provided therethrough. According to this, the number of parts with valve functions increases, making it difficult to leak.
第１２図は本発明の第８の実施例を示すもので
ある。この実施例は第７の実施例においてその突
部を作ることなく挟面を形成し、ふた体２８側に
はこれに対応して断面三角形状のくぼみ５７を形
成したものである。 FIG. 12 shows an eighth embodiment of the present invention. This embodiment is different from the seventh embodiment in that a narrow surface is formed without forming the protrusion, and a recess 57 having a triangular cross section is formed on the lid 28 side in accordance with this.
以上説明したように本発明によれば、ふた体を
閉じてあるときにおいて挿通チヤンネル側からの
撃圧によりそのふた体が外れることを防止でき
る。したがつて、汚物等が外へ飛び散ることがな
く、衛生的に使用できる。そして、これにも拘わ
らず、そのふた体は容易に開閉可能である。さら
に、安価構造で済み経済的である。
As explained above, according to the present invention, when the lid is closed, it is possible to prevent the lid from coming off due to impact pressure from the insertion channel side. Therefore, filth and the like are not scattered outside, and the product can be used hygienically. Despite this, the lid can be easily opened and closed. Furthermore, it is economical due to its inexpensive structure.
第１図は本発明の第１の実施例の鉗子栓の側断
面図、第２図はこれを使用した内視鏡の斜視図、
第３図は同じくその実施例の作動時の側断面図、
第４図は本発明の第２の実施例の鉗子栓の側断面
図、第５図は本発明の第３の実施例の鉗子栓の側
断面図、第６図は同じくその鉗子栓の展開した状
態の側断面図、第７図は同じくその鉗子栓の展開
した状態の平面図、第８図、第９図、第１０図、
第１１図、第１２図はそれぞれ本発明の第４、第
５、第６、第７、第８の実施例を示すその鉗子栓
の側断面図である。
２１……挿入口体、２４……鉗子栓、２７……
本体、２８……ふた体、３０……開口端、３６…
…弁部、３７……挟面。
FIG. 1 is a side sectional view of a forceps plug according to the first embodiment of the present invention, and FIG. 2 is a perspective view of an endoscope using the same.
FIG. 3 is a side sectional view of the same embodiment when it is in operation;
FIG. 4 is a side sectional view of a forceps plug according to a second embodiment of the present invention, FIG. 5 is a side sectional view of a forceps plug according to a third embodiment of the present invention, and FIG. 6 is an expanded view of the forceps plug according to a third embodiment of the present invention. 7 is a side sectional view of the forceps plug in the expanded state, and FIGS. 8, 9, 10,
FIGS. 11 and 12 are side sectional views of forceps plugs showing fourth, fifth, sixth, seventh, and eighth embodiments of the present invention, respectively. 21... Insertion port body, 24... Forceps plug, 27...
Main body, 28... Lid, 30... Opening end, 36...
... Valve part, 37... Pincer surface.
Claims (1)
嵌合し弾性部材よりなる内視鏡用鉗子栓におい
て、上記挿入口体に着脱自在に装着される本体
と、この本体に形成されふた体を着脱自在に嵌合
する開口部と、上記本体に設けられ上記挿通チヤ
ンネルに連通する処置具挿通用孔を有した弁部
と、この弁部に形成され挿通チヤンネル内側から
の撃圧によりその弁部が変形したとき上記ふた体
を上記開口部内周面との間で挟み込む挟面とから
なることを特徴とする内視鏡用鉗子栓。1. A forceps plug for an endoscope that fits into an insertion port body of an insertion channel in an endoscope and is made of an elastic member, and includes a main body that is removably attached to the insertion port body, and a lid formed on the main body that can be attached and detached. a valve portion having a freely fitting opening portion, a treatment instrument insertion hole provided in the main body and communicating with the insertion channel; A forceps plug for an endoscope, characterized in that the forceps plug comprises a clamping surface that sandwiches the lid body between the lid body and the inner circumferential surface of the opening portion when the lid body is deformed.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60109573A JPS61268224A (en) | 1985-05-22 | 1985-05-22 | Forcept plug for endoscope |
| US06/773,122 US4653477A (en) | 1984-09-13 | 1985-09-06 | Endoscope forceps stopcock |
| DE3532560A DE3532560C2 (en) | 1984-09-13 | 1985-09-12 | Closure device for the mouthpiece of an endoscope |
| US07/001,157 US4715360A (en) | 1984-09-13 | 1987-01-07 | Endoscope forceps stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60109573A JPS61268224A (en) | 1985-05-22 | 1985-05-22 | Forcept plug for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61268224A JPS61268224A (en) | 1986-11-27 |
| JPH0557848B2 true JPH0557848B2 (en) | 1993-08-25 |
Family
ID=14513676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60109573A Granted JPS61268224A (en) | 1984-09-13 | 1985-05-22 | Forcept plug for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61268224A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2560353Y2 (en) * | 1988-10-19 | 1998-01-21 | オリンパス光学工業株式会社 | Child endoscope |
| JP4258613B2 (en) * | 2003-01-20 | 2009-04-30 | フジノン株式会社 | Endoscope forceps plug |
| JP5046580B2 (en) * | 2006-07-27 | 2012-10-10 | Ｈｏｙａ株式会社 | Endoscope treatment instrument insertion channel cleaning plug |
-
1985
- 1985-05-22 JP JP60109573A patent/JPS61268224A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61268224A (en) | 1986-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |