JPH02224633A - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPH02224633A JPH02224633A JP1046288A JP4628889A JPH02224633A JP H02224633 A JPH02224633 A JP H02224633A JP 1046288 A JP1046288 A JP 1046288A JP 4628889 A JP4628889 A JP 4628889A JP H02224633 A JPH02224633 A JP H02224633A
- Authority
- JP
- Japan
- Prior art keywords
- section
- tube
- lubricant processing
- endoscope
- layer
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 89
- 230000037431 insertion Effects 0.000 claims abstract description 89
- 238000005461 lubrication Methods 0.000 claims description 28
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 239000000314 lubricant Substances 0.000 abstract description 12
- 229920001971 elastomer Polymers 0.000 abstract description 10
- 239000000806 elastomer Substances 0.000 abstract description 9
- 239000002861 polymer material Substances 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229920003051 synthetic elastomer Polymers 0.000 description 5
- 239000005061 synthetic rubber Substances 0.000 description 5
- 210000001072 colon Anatomy 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001477 hydrophilic polymer Polymers 0.000 description 3
- 235000015110 jellies Nutrition 0.000 description 3
- 239000008274 jelly Substances 0.000 description 3
- 210000002429 large intestine Anatomy 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000001731 descending colon Anatomy 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002496 gastric effect Effects 0.000 description 2
- 238000010559 graft polymerization reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 210000003384 transverse colon Anatomy 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920002307 Dextran Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000013872 defecation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004798 organs belonging to the digestive system Anatomy 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】 [産業上の利用分野] この発明は挿入部を改良した内視鏡に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an endoscope with an improved insertion section.
[従来の技術]
一般に、内視鏡はその挿入部が人体の体腔内に挿入され
て使用される。この場合、特に下部消化器用内視鏡、い
わゆる大腸スコープでは腸の生理排便運動に逆らって挿
入部を体腔内に挿入することになるので、挿入部の挿入
性が悪い場合には患者の苦痛が大きくなる問題がある。[Prior Art] Generally, an endoscope is used with its insertion portion inserted into a body cavity of a human body. In this case, especially with lower gastrointestinal endoscopes, so-called colonoscopes, the insertion section must be inserted into the body cavity against the physiological defecation movement of the intestines, so if the insertion section is difficult to insert, it may cause pain to the patient. There is a growing problem.
そのため、この種の内視鏡では挿入部の先端に湾曲部を
設け、体腔内の形状等に合せてこの湾曲部を手元側操作
部によって遠隔的に湾曲操作することにより、内視鏡挿
入部の挿入作業を容易化するようにしている。Therefore, in this type of endoscope, a curved section is provided at the tip of the insertion section, and this curved section is remotely controlled by the proximal operation section to match the shape of the body cavity. This makes the insertion process easier.
ところで、内視鏡の挿入部の外皮には柔軟な高分子材料
、例えば合成ゴム等のエラストマが用いられることが多
い。しかしながら、このようなエラストマ製の外皮は一
般に外表面の摩擦抵抗が大きいので、人体の体腔内に挿
入しに<<、内視鏡挿入部の挿入作業中に患者の苦痛が
大きくなる問題があった。Incidentally, a flexible polymeric material, for example, an elastomer such as synthetic rubber, is often used for the outer skin of the insertion portion of an endoscope. However, since such an elastomer outer cover generally has a large frictional resistance on its outer surface, there is a problem that when it is inserted into a human body cavity, the patient may experience great pain during the insertion process of the endoscope insertion section. Ta.
そこで、内視鏡挿入部の挿入作業時に挿入部の外表面に
例えばゼリー等の潤滑剤を塗布することにより、挿入部
の外表面の潤滑性を高めたり、或いは特開昭61−20
9670号公報に示されているように胃腸カテーテルの
外表面全体に亙り水溶性の重合体を結合させ、挿入部の
外表面の潤滑性を高めることが行われている。Therefore, it is possible to improve the lubricity of the outer surface of the insertion part by applying a lubricant such as jelly to the outer surface of the insertion part during insertion work of the endoscope insertion part, or to improve the lubricity of the outer surface of the insertion part, or
As disclosed in Japanese Patent No. 9670, a water-soluble polymer is bonded to the entire outer surface of a gastrointestinal catheter to improve the lubricity of the outer surface of the insertion portion.
[発明が解決しようとする課題〕
一般に、内視鏡等の挿入部は体腔内に深く挿人できるよ
うに全体の長さ寸法が比較的長く形成されている。その
ため、挿入部の挿入作業時には医師等の使用者が挿入部
の中間部分を把持し、この把持部分に適宜の押し込み力
を与えながら挿入する操作が必要になる。しかしながら
、上記従来構成のものにあっては挿入部の外表面全体に
ゼリー等の潤滑剤が塗布したり、或いは特開昭61−2
09670号公報のように挿入部の外表面全体に亙り水
溶性の重合体を結合させているので、挿入部の外表面全
体がヌルヌルし、滑り易くなる問題がある。そのため、
医師等の使用者が挿入部の外表面を把持し、挿入する際
に不必要な滑りが発生するおそれがあるので、挿入部の
挿入作業時の操作性が悪くなるおそれがあった。[Problems to be Solved by the Invention] Generally, the insertion portion of an endoscope or the like is formed to have a relatively long overall length so that it can be inserted deeply into a body cavity. Therefore, when inserting the insertion section, a user such as a doctor must grasp the intermediate portion of the insertion section and insert the insertion section while applying an appropriate pushing force to this grasped section. However, in the conventional structure described above, a lubricant such as jelly is applied to the entire outer surface of the insertion portion, or
Since a water-soluble polymer is bonded to the entire outer surface of the insertion portion as in the No. 09670 publication, there is a problem that the entire outer surface of the insertion portion becomes slippery and slippery. Therefore,
When a user, such as a doctor, grasps the outer surface of the insertion section and inserts it, there is a risk that unnecessary slippage may occur, which may impair the operability of the insertion section during insertion work.
なお、内視鏡挿入部の挿入作業時に挿入部の外表面にゼ
リー等の潤滑剤を塗布することにより、挿入部の外表面
の潤滑性を高める構成の場合には挿入部の外表面から潤
滑剤が剥離し易いので、その効果の持続性が悪い問題が
あり、体腔内に深く挿入されるにしたがい徐々に挿入性
が低下することが臨床上、確認されている。In addition, in the case of a configuration in which the lubricity of the outer surface of the insertion tube is increased by applying a lubricant such as jelly to the outer surface of the insertion tube during insertion work of the endoscope insertion tube, lubrication is applied from the outer surface of the insertion tube. Since the agent is easily peeled off, there is a problem that its effect does not last long, and it has been clinically confirmed that insertability gradually decreases as the agent is inserted deeper into the body cavity.
この発明は上記事情に着目してなされたもので、挿入部
の挿入作業時に把持部に不必要な滑りが発生することを
防止して挿入作業時の操作性を高めることができ、同時
に挿入性の向上を図ることができる内視鏡を提供するこ
とを目的とするものである。This invention was made in view of the above-mentioned circumstances, and it is possible to prevent unnecessary slipping of the grip portion during the insertion operation of the insertion section, improve operability during the insertion operation, and at the same time improve insertion efficiency. It is an object of the present invention to provide an endoscope that can improve the performance.
[課題を解決するための手段]
この発明は潤滑性の高い潤滑処理を施した潤滑処理層1
7を形成させた挿入部3の外表面の一部に潤滑処理を施
していない把持用の非潤滑処理部22を設けたものであ
る。[Means for Solving the Problems] The present invention provides a lubricating layer 1 that has been subjected to a lubricating treatment with high lubricity.
A non-lubricated portion 22 for gripping which is not lubricated is provided on a part of the outer surface of the insertion portion 3 on which the insertion portion 3 is formed.
[作用]
挿入部3の挿入作業時には挿入部3の外表面の一部の非
潤滑処理部22を把持させることにより、挿入部3の把
持部に不必要な滑りが発生することを防止して挿入作業
時の操作性を高め、挿入部3の非潤滑処理部22以外の
外表面の潤滑処理層17によって挿入性の向上を図るよ
うにしたものである。[Function] By gripping the non-lubricated portion 22 on the outer surface of the insertion portion 3 during the insertion work of the insertion portion 3, unnecessary slippage is prevented from occurring in the grip portion of the insertion portion 3. The lubrication treatment layer 17 on the outer surface of the insertion portion 3 other than the non-lubrication treatment portion 22 improves the operability during the insertion operation.
[実施例]
以下、この発明の第1の実施例を第1図乃至第6図を参
照して説明する。第1図は内視鏡1全体の概略構成を示
すもので、2は操作部である。[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. 1 shows a schematic configuration of the entire endoscope 1, and 2 is an operating section.
この操作部2には挿入部3およびユニバーサルコード4
がそれぞれ連結されている。そして、この操作部2はユ
ニバーサルコード4の先端のコネクタ5を介して図示し
ない光源装置に連結されている。さらに、この操作部2
には送気・送水・吸引切換えぼたん6、上下方向および
左右方向の各湾曲操作メブ7a、7b、接眼部8、鉗子
栓9によって開閉可能に閉塞された処置具挿通チャンネ
ルの鉗子口体10等がそれぞれ設けられている。This operating section 2 includes an insertion section 3 and a universal cord 4.
are each connected. This operating section 2 is connected to a light source device (not shown) via a connector 5 at the tip of a universal cord 4. Furthermore, this operation section 2
includes an air supply/water supply/suction switching button 6, vertical and horizontal bending operation knobs 7a and 7b, an eyepiece 8, and a forceps mouth body of a treatment instrument insertion channel that can be opened and closed by a forceps stopper 9. 10 etc. are provided respectively.
また、挿入部3は可撓管部11の先端側に湾曲管部12
および先端構成部13が順次連結されて形成されている
。この場合、湾曲管部12は第2図に示すように内側か
ら湾曲駒14・・・、湾曲管部ブレード15、湾曲管部
外皮16が順次積層されて形成されている。そして、こ
の湾曲管部12は操作部2の各湾曲操作ノブ7a、7b
によって遠隔的に上下方向および左右方向にそれぞれ湾
曲操作可能になっている。なお、この湾曲管部12の湾
曲駒14・・・の内部空間には図示しないライトガイド
ファイバ、イメージガイドファイバ、送気・送水・吸引
用チューブ、処置具挿通チャンネルチューブ等の各種内
蔵物が挿入されている。In addition, the insertion section 3 has a curved tube section 12 on the distal end side of the flexible tube section 11.
and the tip forming portion 13 are sequentially connected and formed. In this case, the bending tube section 12 is formed by sequentially laminating bending pieces 14, bending tube section blades 15, and bending tube section outer skin 16 from the inside as shown in FIG. This curved tube section 12 is connected to each curved operation knob 7a, 7b of the operation section 2.
It is possible to remotely bend it vertically and horizontally. In addition, various built-in items such as a light guide fiber, an image guide fiber, an air supply/water supply/suction tube, a treatment instrument insertion channel tube, etc. (not shown) are inserted into the internal space of the bending piece 14 of the bending tube section 12. has been done.
一方、湾曲管部12の湾曲管部外皮16は柔軟な高分子
材料、例えば合成ゴム等のエラストマによって形成され
ている。さらに、この湾曲管部外皮16の外表面には潤
滑性の高い潤滑処理を施した潤滑処理層17が形成され
ている。この潤滑処理層17は第3図および第4図に示
すように湾曲管部外皮16のエラストマの外表面に親水
性高分子鎖18を化学的なグラフト重合によって共有結
合させたものであり、湾曲管部外皮16のエラストマ層
19と親水性高分子鎖18の層2oとの間にはグラフト
重合による共有結合層21が形成されている。なお、親
水性高分子鎖18は常温または加温下で水溶性の重合体
で、かつイオン性基を含まないものが好ましく、このよ
うな重合体としては例えばアクリルアミド系重合体、メ
タクリルアミド系重合体、ポリビニルピロリドン、ポリ
ビニルアルコール、ポリエチレングリコール、デキスト
ラン等である。On the other hand, the curved tube section outer skin 16 of the curved tube section 12 is formed of a flexible polymeric material, for example, an elastomer such as synthetic rubber. Further, a lubrication treatment layer 17 is formed on the outer surface of the curved tube portion outer skin 16 and is subjected to a lubrication treatment with high lubricity. As shown in FIGS. 3 and 4, this lubricating layer 17 is made by covalently bonding hydrophilic polymer chains 18 to the outer surface of the elastomer of the curved tube outer skin 16 by chemical graft polymerization. A covalent bond layer 21 is formed by graft polymerization between the elastomer layer 19 of the tube outer skin 16 and the layer 2o of the hydrophilic polymer chains 18. The hydrophilic polymer chain 18 is preferably a polymer that is water-soluble at room temperature or under heating and does not contain an ionic group. Examples of such polymers include acrylamide-based polymers and methacrylamide-based polymers. polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, dextran, etc.
また、挿入部3の外表面は湾曲管部12の湾曲管部外皮
16の外表面のみに潤滑性の高い潤滑処理を施した潤滑
処理層17が形成されている。そして、この湾曲管部1
2以外の可撓管部11および先端構成部13の外表面は
柔軟な高分子材料、例えば合成ゴム等のエラストマによ
って形成されており、潤滑処理を施していない把持用の
非潤滑処理部22が設けられている。Further, on the outer surface of the insertion portion 3, a lubrication treatment layer 17 is formed which is subjected to a highly lubricating treatment only on the outer surface of the curved tube outer skin 16 of the curved tube portion 12. And this curved pipe part 1
The outer surfaces of the flexible tube portion 11 other than 2 and the tip component 13 are made of a flexible polymeric material, for example, an elastomer such as synthetic rubber, and a non-lubricated portion 22 for gripping that is not lubricated is formed. It is provided.
次に、上記構成の作用について第5図および第6図を参
照して説明する。Next, the operation of the above configuration will be explained with reference to FIGS. 5 and 6.
まず、例えば大腸スコープ等の内視鏡1の挿入部3を患
者の大腸23内に挿入する挿入部3の挿入作業時には医
師等の作業者に挿入部1の全体のうち湾曲管部12以外
の可撓管部11および先端構成部13の外表面の非潤滑
処理部22を把持させる。そして、この状態で第5図中
に矢印Aで示すように挿入部3に押し込み力を与え、こ
の挿入部3を先端構成部13から患者の直腸24内に挿
入させる。この場合、作業者が把持している挿入部1の
非潤滑処理部22の外表面は柔軟な高分子材料、例えば
合成ゴム等のエラストマによって形成されており、潤滑
処理を施していないので、作業者が挿入部3を把持した
際に不必要な滑りが発生することを防止することができ
る。First, when inserting the insertion section 3 of the endoscope 1, such as a colonoscope, into the large intestine 23 of a patient, a worker such as a doctor should ask the operator, such as a doctor, to The non-lubricated portions 22 on the outer surfaces of the flexible tube portion 11 and the tip structure portion 13 are gripped. Then, in this state, a pushing force is applied to the insertion section 3 as shown by arrow A in FIG. 5, and the insertion section 3 is inserted into the patient's rectum 24 from the distal end component 13. In this case, the outer surface of the non-lubricated portion 22 of the insertion portion 1 held by the operator is made of a flexible polymeric material, such as an elastomer such as synthetic rubber, and is not lubricated. This can prevent unnecessary slipping when a person grasps the insertion section 3.
また、直腸24と下行結腸25との間の8字結腸26の
部分では湾曲操作ノブ7a、7bの操作にともない挿入
部3の湾曲管部12をこの8字結腸26の形状に合せて
第5図中に矢印Bで示すように湾曲操作させる。この場
合、湾曲管部12の外表面には水との接触によりて含永
し、潤滑性が高くなる潤滑処理を施した潤滑処理層17
が形成されているので、第5図中に矢印Aで示す押し込
み力によって湾曲管部12が患者の管腔を強く圧迫する
ことなく、円滑に挿入部3を挿入させることができる。In addition, in the part of the figure 8 colon 26 between the rectum 24 and the descending colon 25, the bending tube part 12 of the insertion section 3 is adjusted to the shape of the figure 8 colon 26 by operating the bending operation knobs 7a and 7b. A bending operation is performed as shown by arrow B in the figure. In this case, the outer surface of the curved pipe portion 12 is coated with a lubricating layer 17 that is impregnated by contact with water and is lubricated to increase the lubricity.
5, the insertion portion 3 can be smoothly inserted without the curved tube portion 12 strongly compressing the patient's lumen due to the pushing force shown by arrow A in FIG.
さらに、下行結腸25と横行結腸27との間の牌湾曲2
8のように鋭角的に屈曲する部分でもこの牌湾曲28の
形状に合せて第6図中に矢印Bで示すように挿入部3の
湾曲管部12を湾曲操作させる。この場合も同様に湾曲
管部12が牌湾曲28を強く突上げることがないので、
湾曲管部12の湾曲操作にともない矢印Aで示す押し込
み力によって挿入部3の先端構成部13を矢印Bで示す
方向に円滑に挿入させ4ことができる。Furthermore, the curvature 2 between the descending colon 25 and the transverse colon 27
8, the bending tube portion 12 of the insertion portion 3 is bent in accordance with the shape of the curved tile 28 as shown by the arrow B in FIG. In this case as well, since the curved pipe portion 12 does not push up the curved tile 28 strongly,
As the bending tube portion 12 is bent, the tip portion 13 of the insertion portion 3 can be smoothly inserted in the direction shown by the arrow B by the pushing force shown by the arrow A.
そこで、上記構成のものにあっては潤滑性の高い潤滑処
理を施した湾曲管部12以外の挿入部3の外表面、すな
わち可撓管部11および先端構成部13の外表面に潤滑
処理を施していない把持用の非潤滑処理部22を設けた
ので、挿入部3の挿入作業時には挿入部3の可撓管部1
1および先端構成部13の外表面の非潤滑処理部22を
把持させることにより、挿入部3の把持部に不必要な滑
りが発生することを防止することができ、挿入作業時の
操作性を高めることができる。さらに、挿入部3の湾曲
管部12の外表面には潤滑処理層17が形成されている
ので、この湾曲管部12の外表面の潤滑処理層17によ
って挿入部3の挿入性の向上を図ることもできる。また
、この場合には湾曲管部12のみに潤滑処理層17を形
成したので、挿入部3全体の組立て前に湾曲管部12の
潤滑処理層17を可撓管部11および先端構成部13と
は別個に単独で形成することができ、製造の容易化を図
ることができる。Therefore, in the case of the above structure, the outer surface of the insertion section 3 other than the curved tube section 12 which has been subjected to a highly lubricating treatment, that is, the outer surface of the flexible tube section 11 and the tip structure section 13, is subjected to a lubrication treatment. Since the non-lubricated portion 22 for gripping is provided, the flexible tube portion 1 of the insertion portion 3 is
1 and the non-lubricated portion 22 on the outer surface of the tip component 13, it is possible to prevent unnecessary slipping of the gripping portion of the insertion portion 3 and improve operability during insertion work. can be increased. Further, since a lubrication layer 17 is formed on the outer surface of the curved tube section 12 of the insertion section 3, the insertability of the insertion section 3 is improved by the lubrication layer 17 on the outer surface of the curved tube section 12. You can also do that. In addition, in this case, since the lubrication layer 17 was formed only on the curved tube section 12, the lubrication layer 17 of the curved tube section 12 was formed on the flexible tube section 11 and the tip structure section 13 before the entire insertion section 3 was assembled. can be formed separately and singly, which facilitates manufacturing.
また、第7図および第8図はこの発明の第2の実施例を
示すものである。これは、先端構成部13内に図示しな
い固体撮像素子を装着し、この固体撮像素子によって検
出された映像信号を光源装置31を介して外部モニタ3
2に送り、この外部モニタ32の画面に内視鏡1からの
映像を表示させる電子内視鏡33にこの発明を適用した
ものである。この場合、内視鏡33の操作部2には制御
スイッチ部34が設けられている。さらに、ユニバーサ
ルコード4にはう′イトガイドケーブル35と接続コー
ド36とが設けられており、接続コード36の先端のビ
デオプロセッサコネクタ37が光源装置31のビデオプ
ロセッサ38に接続されるようになっている。また、こ
の内視鏡33の挿入部3には第8図に示すように湾曲管
部12の湾曲管部外皮16の外表面に潤滑性の高い潤滑
処理を施した潤滑処理層17が形成されているとともに
、可撓管部11の先端部分にも湾曲管部12と同様に潤
滑性の高い潤滑処理を施した潤滑処理層17が形成され
ている。なお、第8図中で、Eは挿入部3中の潤滑処理
層17の形成範囲を示すものである。したがって、この
場合も第1の実施例と同様の効果を得ることができる。Further, FIGS. 7 and 8 show a second embodiment of the present invention. A solid-state image sensor (not shown) is mounted inside the tip component 13, and a video signal detected by the solid-state image sensor is sent to an external monitor 3 via a light source device 31.
The present invention is applied to an electronic endoscope 33 that transmits an image from the endoscope 1 to the external monitor 32 and displays the image from the endoscope 1 on the screen of the external monitor 32. In this case, the operating section 2 of the endoscope 33 is provided with a control switch section 34 . Further, the universal cord 4 is provided with a light guide cable 35 and a connection cord 36, and a video processor connector 37 at the tip of the connection cord 36 is connected to a video processor 38 of the light source device 31. There is. In addition, as shown in FIG. 8, in the insertion section 3 of the endoscope 33, a lubrication treatment layer 17 is formed on the outer surface of the curved tube outer skin 16 of the curved tube section 12, which is subjected to a highly lubricating treatment. At the same time, a lubrication treatment layer 17 is formed on the distal end portion of the flexible tube portion 11 as well, which is subjected to a highly lubricating treatment similar to the curved tube portion 12 . In addition, in FIG. 8, E indicates the formation range of the lubrication treatment layer 17 in the insertion portion 3. Therefore, in this case as well, the same effects as in the first embodiment can be obtained.
また、第9図はこの発明の第3の実施例を示すものであ
る。これは、第1の実施例の内視鏡1の挿入部3内にお
ける湾曲管部12の湾曲管部外皮16の外表面に潤滑性
の高い潤滑処理を施した潤滑処理層17を形成するとと
もに、可撓管部11の中間部分に適宜の間隔を存して複
数箇所に湾曲管部12と同様に潤滑性の高い潤滑処理を
施した潤滑処理層17を形成したものである。なお、第
9図中で、F l * F2 、F3は挿入部3中の
潤滑処理層17の形成範囲を示すものである。したがっ
て、この場合には挿入部3を深く挿入する場合の挿入性
をさらに改善させることができる。さらに、この場合に
は挿入部3中の潤滑処理層17の形成部分と外表面に潤
滑処理を施していない把持用の非潤滑処理部22との間
に境界線を示すマーク等を印刷したり、潤滑処理層17
と非潤滑処理部22とを色分けすることにより、−層の
操作性の向上を図ることができる。Further, FIG. 9 shows a third embodiment of the present invention. This is achieved by forming a lubrication treatment layer 17 on the outer surface of the curved tube section outer skin 16 of the curved tube section 12 in the insertion section 3 of the endoscope 1 of the first embodiment, and applying a lubrication treatment with high lubricity. , lubrication treatment layers 17 are formed in the intermediate portion of the flexible tube portion 11 at a plurality of locations at appropriate intervals and subjected to a highly lubricating treatment similar to the curved tube portion 12. In FIG. 9, F l *F2 and F3 indicate the formation range of the lubrication treatment layer 17 in the insertion portion 3. Therefore, in this case, the insertability when inserting the insertion portion 3 deeply can be further improved. Furthermore, in this case, a mark or the like may be printed to indicate a boundary line between the portion of the insertion portion 3 where the lubrication layer 17 is formed and the non-lubricated portion 22 for gripping which is not lubricated on the outer surface. , lubricating layer 17
By color-coding the and non-lubricated portions 22, it is possible to improve the operability of the − layer.
また、第10図はこの発明の第4の実施例を示すもので
ある。これは、外套管41とこの外套管41内に挿入さ
れる光学視管42とを組合わせて使用する硬性鏡43に
この発明を適用したものである。この場合、光学視管4
2には挿入部44と手元観察部45とが設けられている
。さらに、外套管41には挿入部46と手元側握り部4
7とが設けられている。この手元側握り部47には光学
視管42の手元観察部45に突設された連結ピン48を
挿脱自在に装着するガイド孔49が形成されている。そ
して、光学視管42が外套管41に装着された際にはピ
ン48を締付けねじ50によって締付けることにより、
光学視管42を外套管41に固定するようになっている
。Further, FIG. 10 shows a fourth embodiment of the present invention. This invention is applied to a rigid endoscope 43 that uses a combination of a mantle tube 41 and an optical viewing tube 42 inserted into the mantle tube 41. In this case, the optical viewing tube 4
2 is provided with an insertion section 44 and a hand observation section 45. Furthermore, the mantle tube 41 includes an insertion portion 46 and a proximal grip portion 4.
7 is provided. A guide hole 49 is formed in the hand side grip part 47, into which a connecting pin 48 protruding from the hand observation part 45 of the optical viewing tube 42 is inserted and removed. Then, when the optical sight tube 42 is attached to the mantle tube 41, the pin 48 is tightened with the tightening screw 50.
The optical sight tube 42 is fixed to the outer mantle tube 41.
また、外套管41の手元側握り部47には光学視管42
の挿入部44との間に筒状の空間部51が形成されてい
る。そして、この外套管41の挿入部46の基端部はこ
の空間部51に連通された状態で手元側握り部47に連
結されている。さらに、手元側握り部47には空間部5
1に連通ずる一対の流通管52.53がそれぞれ口金5
4゜55を介して連結されている。そして、これらの流
通管52.53、口金54.55を介して外套管41の
空間部51および挿入部46内に水または空気等の流体
を流通させるようになっている。Further, an optical viewing tube 42 is attached to the proximal grip portion 47 of the mantle tube 41.
A cylindrical space 51 is formed between the insertion portion 44 and the insertion portion 44 . The proximal end of the insertion portion 46 of the mantle tube 41 is connected to the proximal grip portion 47 while communicating with the space 51. Furthermore, a space 5 is provided in the hand grip portion 47.
A pair of flow pipes 52 and 53 communicating with the cap 5
They are connected via 4°55. A fluid such as water or air is made to flow into the space 51 of the mantle tube 41 and the insertion portion 46 through the flow tubes 52, 53 and the caps 54, 55.
なお、56はライトガイドを連結する口金である。Note that 56 is a base for connecting the light guide.
また、外套へ@41の挿入部46は高分子材料、例えば
合成ゴム等のエラストマによって形成されており、この
挿入部46の先端部側の外表面には潤滑性の高い潤滑処
理を施した潤滑処理層17が形成され、それ以外の部分
には潤滑処理を施していない非潤滑処理部22が形成さ
れている。したかって、この場合には外套管41の挿入
部46と体腔との摩擦が減るので、生体を損傷するおそ
れがない。In addition, the insertion part 46 of @41 into the mantle is formed of a polymeric material, for example, an elastomer such as synthetic rubber, and the outer surface of the insertion part 46 on the distal end side is coated with a highly lubricating lubrication treatment. A treated layer 17 is formed, and a non-lubricated portion 22 in which no lubrication treatment is performed is formed in other portions. Therefore, in this case, the friction between the insertion portion 46 of the mantle tube 41 and the body cavity is reduced, so there is no risk of damaging the living body.
なお、この発明は上記各実施例に限定されるものではな
い。例えば、第1〜第3の各実施例ではこの発明を大腸
スコープに適用した場合について示したが、上部消化器
や、気管用の内視鏡であってもよい。また、この発明は
医療用の内視鏡に限定されるものではなく、工業用の内
視鏡に適用してもよい。さらに、その他この発明の要旨
を逸脱しない範囲で種々変形実施できることは勿論であ
る。Note that the present invention is not limited to the above embodiments. For example, in the first to third embodiments, the present invention is applied to a colonoscope, but it may also be applied to an endoscope for upper digestive organs or the trachea. Further, the present invention is not limited to medical endoscopes, but may be applied to industrial endoscopes. Furthermore, it goes without saying that various other modifications can be made without departing from the gist of the invention.
[発明の効果]
この発明によれば潤滑性の高い潤滑処理を施した潤滑処
理層を形成させた挿入部の外表面の一部に潤滑処理を施
していない把持用の非潤滑処理部を設けたので、挿入部
の挿入作業時に把持部に不必要な滑りが発生することを
防止して挿入作業時の操作性を高めることができ、同時
に挿入性の向上を図ることができる。[Effects of the Invention] According to the present invention, a non-lubricated portion for gripping which is not subjected to lubrication treatment is provided on a part of the outer surface of the insertion portion on which a lubrication treatment layer having been subjected to a lubrication treatment with high lubricity is formed. Therefore, it is possible to prevent unnecessary slipping of the grip portion during the insertion operation of the insertion portion, thereby improving the operability during the insertion operation, and at the same time, it is possible to improve the insertability.
第1図乃至第6図はこの発明の第1の実施例を示すもの
で、第1図は内視鏡全体の外観を示す斜視図、第2図は
要部の縦断面図、第3図は潤滑処理層を示す概略構成図
、第4図は同縦断面図、第5図は挿入部を大腸の8字結
腸に挿入した状態を示す概略構成図、第6図は挿入部を
大腸の横行結腸に挿入した状態を示す概略構成図、第7
図および第8図はこの発明の第2の実施例を示すもので
、第7図は内視鏡全体の外観を示す斜視図、第8図は挿
入部を示す要部の側面図、第9図はこの発明の第3の実
施例を示す要部の側面図、第10図はこの発明の第4の
実施例を示す縦断面図である。
3.46・・・挿入部、17・・・潤滑処理層、22・
・・非潤滑処理部。
出願人代理人 弁理士 坪井 淳1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a perspective view showing the overall appearance of the endoscope, FIG. 2 is a vertical sectional view of the main parts, and FIG. 4 is a longitudinal sectional view of the lubricating layer, FIG. 5 is a schematic diagram showing the inserted part inserted into the figure 8 colon of the large intestine, and FIG. 6 is a schematic diagram showing the insertion part inserted into the figure 8 colon of the large intestine. Schematic configuration diagram showing the state inserted into the transverse colon, No. 7
8 and 8 show a second embodiment of the present invention, FIG. 7 is a perspective view showing the overall appearance of the endoscope, FIG. 8 is a side view of the main parts showing the insertion section, and FIG. The figure is a side view of essential parts showing a third embodiment of the invention, and FIG. 10 is a longitudinal sectional view showing a fourth embodiment of the invention. 3.46... Insertion part, 17... Lubrication treatment layer, 22.
...Non-lubrication processing section. Applicant's agent Patent attorney Atsushi Tsuboi
Claims (1)
理層を形成させた内視鏡において、前記挿入部の外表面
の一部に前記潤滑処理を施していない把持用の非潤滑処
理部を設けたことを特徴とする内視鏡。In an endoscope in which a lubricated layer is formed on the outer surface of the insertion portion by applying a highly lubricating treatment, a portion of the outer surface of the insertion portion is subjected to non-lubrication treatment for gripping without the aforementioned lubrication treatment. An endoscope characterized by having a section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1046288A JP2706507B2 (en) | 1989-02-27 | 1989-02-27 | Endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1046288A JP2706507B2 (en) | 1989-02-27 | 1989-02-27 | Endoscope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02224633A true JPH02224633A (en) | 1990-09-06 |
JP2706507B2 JP2706507B2 (en) | 1998-01-28 |
Family
ID=12743029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1046288A Expired - Fee Related JP2706507B2 (en) | 1989-02-27 | 1989-02-27 | Endoscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2706507B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009213651A (en) * | 2008-03-10 | 2009-09-24 | Fujinon Corp | Endoscope flexible tube and endoscope having the same |
WO2013137372A1 (en) * | 2012-03-16 | 2013-09-19 | コニカミノルタ株式会社 | Fiber scope and insertion site thereof, and endoscope system and use thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2971490B2 (en) | 1989-11-22 | 1999-11-08 | オリンパス光学工業株式会社 | Endoscope |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49110186A (en) * | 1973-02-19 | 1974-10-19 |
-
1989
- 1989-02-27 JP JP1046288A patent/JP2706507B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49110186A (en) * | 1973-02-19 | 1974-10-19 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009213651A (en) * | 2008-03-10 | 2009-09-24 | Fujinon Corp | Endoscope flexible tube and endoscope having the same |
WO2013137372A1 (en) * | 2012-03-16 | 2013-09-19 | コニカミノルタ株式会社 | Fiber scope and insertion site thereof, and endoscope system and use thereof |
JPWO2013137372A1 (en) * | 2012-03-16 | 2015-08-03 | コニカミノルタ株式会社 | Fiberscope, insertion portion thereof, endoscope system and method of using the same |
Also Published As
Publication number | Publication date |
---|---|
JP2706507B2 (en) | 1998-01-28 |
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