JPS644446B2 - - Google Patents
Info
- Publication number
- JPS644446B2 JPS644446B2 JP56149375A JP14937581A JPS644446B2 JP S644446 B2 JPS644446 B2 JP S644446B2 JP 56149375 A JP56149375 A JP 56149375A JP 14937581 A JP14937581 A JP 14937581A JP S644446 B2 JPS644446 B2 JP S644446B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- tube
- flexible tube
- thread
- thread coil
- 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
- 238000005452 bending Methods 0.000 description 10
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2316/00—Apparatus in health or amusement
- F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
Landscapes
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Flexible Shafts (AREA)
Description
【発明の詳細な説明】
この発明は、彎曲管操作ワイヤを挿通するパイ
プ状コイルを多条巻コイルで形成し、彎曲管操作
時に可撓管が彎曲しないように構成したパイプ状
多条巻コイルを備えた内視鏡用可撓管に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a pipe-like multi-thread coil that is configured such that a pipe-like coil through which a curved tube operation wire is inserted is formed of a multi-thread coil, and the flexible tube does not bend when the curved tube is operated. The present invention relates to a flexible tube for an endoscope.
一般に、医療用等に用いられる内視鏡は、第１
図に示すように、操作部本体２と、体腔内に挿入
される可撓性の長尺の体腔内挿入部３とから構成
されており、この内視鏡１の上記操作部本体２に
は、接眼部４、彎曲用操作ノブ５、鉗子等の処置
具挿入口６、処置具起上用操作ノブ７、送気送水
ボタン８、吸引ボタン９等が配設されており、更
に、光源装置に接続されるライトガイドコード１
０が連結されている。また、上記体腔内挿入部３
は、操作部本体２に連設された屈曲自在な長尺の
可撓管１１と、この可撓管１１に連設されてい
て、操作部本体２の彎曲用操作ノブ５の操作によ
つて先端構成部１３を任意の向きに変位させるた
めの彎曲管１２と、この彎曲管１２に連設されて
おり、照明窓、観察窓、処置具出入口、送気送水
口等が設けられている先端構成部１３とから構成
されている。そして、この体腔内挿入部３の可撓
管１１内と彎曲管１２内には、イメージガイドフ
アイバ等の伝達用部材、処置具挿通管、送気送水
チユーブ及び処置具起上装置等の操作部材等、多
くの内蔵部材が挿通されており、これらの各内蔵
部材の各先端部は先端構成部１３内に固定されて
いる。 Generally, endoscopes used for medical purposes etc.
As shown in the figure, the endoscope 1 is composed of an operating section main body 2 and a flexible long body cavity insertion section 3 that is inserted into a body cavity. , an eyepiece section 4, an operation knob 5 for bending, an insertion port 6 for a treatment instrument such as forceps, an operation knob 7 for raising the treatment instrument, an air/water supply button 8, a suction button 9, etc., and a light source. Light guide cord 1 connected to the device
0 is concatenated. In addition, the above-mentioned body cavity insertion part 3
is a long bendable flexible tube 11 connected to the operating section main body 2, and a bending operation knob 5 connected to the operating section main body 2. A curved tube 12 for displacing the distal end component 13 in any direction; and a distal end connected to the curved tube 12 and provided with an illumination window, an observation window, a treatment instrument entrance/exit, an air/water supply port, etc. It is composed of a component section 13. Inside the flexible tube 11 and the curved tube 12 of the body cavity insertion section 3, there are transmission members such as an image guide fiber, operation members such as a treatment instrument insertion tube, an air/water supply tube, and a treatment instrument lifting device. A number of built-in members such as the above are inserted, and each tip of each of these built-in members is fixed within the tip forming portion 13.
このように構成されている内視鏡１は、彎曲用
操作ノブ５により、先端構成部１３を任意の向き
に変位させる彎曲管１２を彎曲させ、体腔内の所
望の患部の観察、撮影、処置などを行うものであ
るが、この際、上下左右方向に彎曲・変位するの
は、彎曲管１２より先端にかけての部分であり、
彎曲用操作ノブ５を操作し、第２図に示されてい
るアングルワイヤと呼ばれる彎曲管操作ワイヤ１
４を、矢印方向に牽引することによつて、彎曲管
１２を彎曲させて、先端部１３を変位させるもの
である。しかして、この彎曲管操作時には、アン
グルワイヤ１４の牽引により、可撓管１１が同時
に彎曲しないように、アングルワイヤ１４にかか
る牽引力の方向とは反対方向に力を加え、可撓管
１１を支えておく必面がある。従来、かかる可撓
管１１の支持手段としては、第２図に示すよう
に、パイプ状に形成されたコイル１５が用いられ
ており、このコイル１５は、可撓管１１内に配置
され、その内部にはアングルワイヤ１４が挿通さ
れており、そして、可撓管に対して、そのばね力
により、常の操作部本体２から先端構成部１３へ
向う方向の力をかけている。しかして、アングル
ワイヤ１４を牽引して彎曲管１２を大きな角度で
彎曲させようとする場合には、可撓管１１を支え
るコイル１５は、それに応じた同きなばね支持力
を必要とされるものであり、この可撓管１１を支
えるコイルのばね力が弱いと、可撓管１１が彎曲
してしまい、彎曲管１２を大きな角度で彎曲させ
ようとしても、所定の角度に彎曲させることがで
きず、所望の変位も得られなくなる。 The endoscope 1 configured in this manner bends the bending tube 12 that displaces the distal end component 13 in an arbitrary direction using the bending operation knob 5, and allows observation, imaging, and treatment of a desired affected area within the body cavity. At this time, it is the part from the curved tube 12 to the tip that is bent and displaced in the vertical and horizontal directions.
By operating the bending operation knob 5, the bending pipe operation wire 1, called an angle wire, shown in FIG.
By pulling the tube 4 in the direction of the arrow, the curved tube 12 is bent and the distal end portion 13 is displaced. Therefore, during this bending tube operation, a force is applied in the opposite direction to the direction of the pulling force applied to the angle wire 14 to support the flexible tube 11 so that the flexible tube 11 does not bend at the same time due to the pull of the angle wire 14. There is a need to keep it. Conventionally, as a support means for the flexible tube 11, a coil 15 formed in the shape of a pipe has been used, as shown in FIG. An angle wire 14 is passed through the inside, and its spring force applies a force to the flexible tube in a direction from the operating section main body 2 toward the tip component 13. Therefore, when the curved tube 12 is to be bent at a large angle by pulling the angle wire 14, the coil 15 supporting the flexible tube 11 is required to have the same spring support force. If the spring force of the coil that supports this flexible tube 11 is weak, the flexible tube 11 will curve, and even if you try to bend the curved tube 12 at a large angle, it will not be possible to bend it to a predetermined angle. Therefore, the desired displacement cannot be obtained.
このような可撓管１１を支えるパイプ状のコイ
ルとしては、従来は、第３図に示すような１条巻
コイル１６が用いられていた。しかしながら、１
条巻コイルは、コイルの腰が弱く使用を続ける
と、経時変化によりコイルが密着して、力のかか
る向きにコイルの長さが縮小するため、ばね効果
が著しく減少する。その結果、可撓管１１を彎曲
しないように支える力が減少し、彎曲管１２を彎
曲させるべく操作しても、可撓管１１が彎曲して
しまい、彎曲管１２を所望角度に彎曲させること
ができず、したがつて、先端構成部１３を所望の
患部へ変位させることができなくなるという欠点
があつた。 As a pipe-shaped coil supporting such a flexible tube 11, a single-thread coil 16 as shown in FIG. 3 has conventionally been used. However, 1
If a wire-wound coil is used continuously because the coil is weak, the coils will stick together over time and the length of the coil will shrink in the direction in which force is applied, resulting in a significant reduction in the spring effect. As a result, the force supporting the flexible tube 11 to prevent it from bending is reduced, and even if the bendable tube 12 is operated to bend, the flexible tube 11 ends up being bent, making it difficult to bend the bendable tube 12 to a desired angle. Therefore, there was a drawback that the distal end component 13 could not be displaced to the desired affected area.
本願発明は、かかる欠点を改善するためになさ
れたもので、パイプ状コイルを形成するコイルと
して、多条巻コイルを用い、可撓管１１を支える
ばね力を大にして、可撓管１１の剛性を増大なら
しめる如く構成した多条巻コイルを備えた内視鏡
用可撓管を提供することを目的としている。 The present invention has been made to improve such drawbacks, and uses a multi-thread coil as the coil forming the pipe-like coil, and increases the spring force supporting the flexible tube 11. It is an object of the present invention to provide a flexible tube for an endoscope having a multi-thread coil configured to increase rigidity.
次に、本願発明の実施例について説明する。第
４図は、５条巻コイルで形成したパイプ状コイル
１７を示すもので、このような多条巻コイルは、
第５図に示すように、堅い芯金１８を、張力をつ
けて真直ぐに張り、これにコイル素線１９を数本
づつ（この実施例では５本づつ）密着させて同時
に巻き付けて製造されるものである。 Next, examples of the present invention will be described. FIG. 4 shows a pipe-shaped coil 17 formed of a five-thread coil, and such a multi-thread coil is
As shown in FIG. 5, a hard core bar 18 is stretched straight under tension, and several coil wires 19 (in this example, five wires each) are tightly wrapped around the core bar 18 at the same time. It is something.
このようにして形成した、例えば５条巻のよう
な多条巻コイルを、可撓管１１内に配置して使用
した場合は、多条巻コイルを形成している各素線
は密着してばね作用を行うため、この多条巻コイ
ルにアングルワイヤ１４の操作により圧縮力が加
えられても、経時的にコイルの長さを縮小する割
合は、１条巻コイルと比べて極めて小さくなる。
したがつて、彎曲管１２を彎曲させる際の、可撓
管１１を支えるためのばね力は、１条巻コイルに
比べて大きくなり、それにともない、可撓管１１
の剛性を増大させることができる。なお、第４図
に示した実施例では、パイプ状コイルを５条巻と
したが、２条巻ないし５条巻程度のものが実用上
好ましい。 When a multi-thread coil formed in this manner, for example, a five-thread coil, is placed and used within the flexible tube 11, each strand forming the multi-thread coil is in close contact with each other. Because of the spring action, even if a compressive force is applied to this multi-thread coil by operating the angle wire 14, the rate at which the length of the coil decreases over time is extremely small compared to a single-thread coil.
Therefore, the spring force for supporting the flexible tube 11 when bending the curved tube 12 becomes larger than that for a single-thread coil, and accordingly, the spring force for supporting the flexible tube 11
The stiffness of the material can be increased. In the embodiment shown in FIG. 4, the pipe-shaped coil has five turns, but it is practically preferable to have about two to five turns.
以上、実施例により詳細に説明したように、本
願発明によれば、アングルワイヤを内部に挿通す
る如く構成したパイプ状コイルを、多条巻コイル
で形成したので、従来の１条巻コイルで形成した
ものに比べて、ばね効力の経時的変化が少く、且
つ、腰が強く、したがつて、この多条巻コイルを
備えた可撓管の剛性は、１条巻コイルを用いたも
のより大となり、その結果、彎曲管を所望の角度
に彎曲させて、先端構成部を正確に変位させるこ
とができ、内視鏡の性能を向上させることができ
るという効果が得られる。 As described above in detail with reference to the embodiments, according to the present invention, the pipe-shaped coil configured such that the angle wire is inserted therein is formed of a multi-thread coil, whereas it is formed of a conventional single-thread coil. The spring force changes less over time and is more rigid than those with multi-thread coils.Therefore, the rigidity of a flexible tube equipped with this multi-thread coil is greater than that with a single-thread coil. As a result, it is possible to bend the curved tube to a desired angle and accurately displace the distal end component, resulting in the effect that the performance of the endoscope can be improved.
第１図は、一般の内視鏡の一部省略した外観
図、第２図は、同じく一般の内視鏡のアングルワ
イヤ及びパイプ状コイルの可撓管への挿入部分を
示す斜視図、第３図は、従来の１条巻コイルの側
面図、第４図は、本願発明に係る多条巻コイルの
側面図、第５図は、本願発明による多条巻コイル
の製法を示す説明図である。
図中、１は内視鏡、２は操作部本体、３は体腔
内挿入部、５は彎曲用操作ノブ、１１は可撓管、
１２は彎曲管、１３は先端構成部、１４はアング
ルワイヤ、１５はコイル、１６は１条巻コイル、
１７は５条巻コイル、１８は芯金、１９はコイル
素線である。
FIG. 1 is a partially omitted external view of a general endoscope, and FIG. FIG. 3 is a side view of a conventional single-thread coil, FIG. 4 is a side view of a multi-thread coil according to the present invention, and FIG. 5 is an explanatory diagram showing a method for manufacturing a multi-thread coil according to the present invention. be. In the figure, 1 is an endoscope, 2 is an operating section main body, 3 is an insertion section into a body cavity, 5 is a bending operation knob, 11 is a flexible tube,
12 is a curved tube, 13 is a tip component, 14 is an angle wire, 15 is a coil, 16 is a single-thread coil,
17 is a five-thread coil, 18 is a metal core, and 19 is a coil wire.
Claims (1)
内部には彎曲管操作ワイヤ挿通用のパイプ状コイ
ルを装着した内視鏡用可撓管において、前記パイ
プ状コイルを多条巻コイルで構成し、可撓管の剛
性を増大せしめたことを特徴とする多条巻コイル
を備えた内視鏡用可撓管。1.Equipped with an operating unit main body at one end and a curved tube at the other end,
A flexible tube for an endoscope, which is equipped with a pipe-shaped coil for inserting a curved tube operation wire inside, characterized in that the pipe-shaped coil is composed of a multi-thread coil to increase the rigidity of the flexible tube. A flexible tube for endoscopes equipped with a multi-thread coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56149375A JPS5850932A (en) | 1981-09-24 | 1981-09-24 | Flexible tube for endoscope equipped with multi-winding coil for inserting manipulating wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56149375A JPS5850932A (en) | 1981-09-24 | 1981-09-24 | Flexible tube for endoscope equipped with multi-winding coil for inserting manipulating wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850932A JPS5850932A (en) | 1983-03-25 |
| JPS644446B2 true JPS644446B2 (en) | 1989-01-25 |
Family
ID=15473753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56149375A Granted JPS5850932A (en) | 1981-09-24 | 1981-09-24 | Flexible tube for endoscope equipped with multi-winding coil for inserting manipulating wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850932A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271774A (en) * | 1990-03-22 | 1991-12-03 | Canon Inc | Image recording device |
| KR20210129581A (en) * | 2020-04-20 | 2021-10-28 | (주)아그루코리아 | Welding bead inspection apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49134885U (en) * | 1973-03-14 | 1974-11-20 |
-
1981
- 1981-09-24 JP JP56149375A patent/JPS5850932A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271774A (en) * | 1990-03-22 | 1991-12-03 | Canon Inc | Image recording device |
| KR20210129581A (en) * | 2020-04-20 | 2021-10-28 | (주)아그루코리아 | Welding bead inspection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5850932A (en) | 1983-03-25 |
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