JPS62249636A - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPS62249636A JPS62249636A JP62094110A JP9411087A JPS62249636A JP S62249636 A JPS62249636 A JP S62249636A JP 62094110 A JP62094110 A JP 62094110A JP 9411087 A JP9411087 A JP 9411087A JP S62249636 A JPS62249636 A JP S62249636A
- Authority
- JP
- Japan
- Prior art keywords
- solid
- distal end
- state
- endoscope
- forceps channel
- 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
- 238000003384 imaging method Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 description 8
- 238000011282 treatment Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野］
本発明は、方形状固体撮像素子を用いた内視鏡に係り、
特に体腔内等に挿入される挿入部先端であつ℃照明手段
及び結像光学系が組込まれる先端構成部内に前記固体偏
像素子を配設するｂのにおいて、この方形状固体撮像素
子を内周に偏位して設けると共に、その反偏位側に鉗子
チャンネルを設Ｇノ”Ｕ鉗子チ１／ンネルの内径を充分
に取りつつ内視鏡の外径を最小限におさえることができ
るようにした内視鏡に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an endoscope using a rectangular solid-state image sensor,
In particular, in step b, the solid-state polarizing element is disposed in the distal end of the insertion section inserted into a body cavity, etc., and in which the illuminating means and the imaging optical system are incorporated. A forceps channel is provided on the opposite side of the deflection side, allowing the outer diameter of the endoscope to be kept to a minimum while ensuring a sufficient inner diameter of the channel. Regarding endoscopes.
［従来の技術と発明が解決しようとする問題点］近年、
電荷結合素子（ＣＯＤ）等の固体偏像素子を搬像手段に
用いた内視鏡が種々提案されている。この固体陽像素子
は、一般に方形であり画素数にもよるが比較的径が大ぎ
い。その為、この固体１１ａ像素子を内視鏡挿入部の先
端構成部内に配置しようとＪると、この先端構成部内は
軸方向に送気・送水ヂレンネルや鉗子チＶンネルが形成
され、その他照明手段、結像光学系等が配設されている
ことから、先端構成部の径が必然的に太くならざるを得
ないか、又は方形状固体撮像素子の隅部によって前記チ
ャンネル等のスペースが制約され充分とれないといった
問題がある。[Problems to be solved by conventional techniques and inventions] In recent years,
Various endoscopes have been proposed that use a solid-state polarizing device such as a charge-coupled device (COD) as an image carrier. This solid-state positive image element is generally rectangular and has a relatively large diameter, although it depends on the number of pixels. Therefore, when this solid-state image element 11a is placed inside the distal end component of the endoscope insertion section, an air/water supply channel and a forceps channel are formed in the axial direction within the distal end component, and other illumination Because the means, imaging optical system, etc. are arranged, the diameter of the tip component inevitably has to be thick, or the space for the channel etc. is limited by the corners of the rectangular solid-state image sensor. There is a problem that you can't get enough of it.
このため、特開昭５８−４６９２２号公報に開示されて
いるように、ミラー等で反射さＶて挿入部あるい゛は先
端部の軸と平行に配置した固体偏像素子のｆ［ａｓ而に
導くようにした従来例がある。For this reason, as disclosed in Japanese Patent Application Laid-Open No. 58-46922, the image of the solid-state polarizing element f [as There is a conventional example that leads to
しかしながら、この従来例においても、踊像手段を形成
するミラー等の導光部材が先端部の中央に配設されてい
るため、上述のように照明手段（照明光学系）あるいは
鉗子ヂｔ’ンネル等のためのスペースが狭くなり、照明
強度が不足ぎみにな−）たり、使用できるＩＩ子等の処
置具が制限され、処置具を用いた治療処置を充分行うこ
とが難しくなるといった問題がある。However, even in this conventional example, since the light guide member such as a mirror forming the dancing image means is disposed at the center of the tip, it is difficult to use the illumination means (illumination optical system) or the forceps tunnel as described above. There are problems such as the space for the treatment equipment becomes narrow, the lighting intensity is almost insufficient (), and the number of usable treatment tools such as the II child is limited, making it difficult to adequately perform treatment using the treatment equipment. .
又、特開昭５８−４．６９２４号公報にＩま、固体１１
像素子を円筒状にすると共に、その周縁部に開口部を設
け、その間口部にライトガイドを通すことにより、内視
鏡先端の細径化を図ったことの開示がある。Also, in Japanese Patent Application Laid-open No. 58-4.6924, solid 11
There is a disclosure that the diameter of the tip of an endoscope is reduced by making the image element cylindrical, providing an opening at its peripheral edge, and passing a light guide through the opening.
ところで、内視鏡においては、組織生検を行なうための
鉗子チ１／ンネルが必要であり、一般的に内径が２Ｍま
たは２．８ｍの鉗子チャンネルが用いられている。更に
、レーザー処置や、マイクロ波凝固処ｄ等の各種の経内
視鏡的処置を行なうために、３．７ｍまたは４．２ｓと
いった大チ１！ンネルが必要な場合もある。その他、複
数ヂャンネルとか、鉗子起上機構といったように、内視
鏡に対するニーズは多用であり、ニーズを必要最小限に
満たした土で常に細径化を考える必要がある。Incidentally, an endoscope requires a forceps channel/channel for performing tissue biopsy, and generally a forceps channel with an inner diameter of 2M or 2.8m is used. Furthermore, in order to perform various transendoscopic treatments such as laser treatment and microwave coagulation treatment, a long distance of 3.7 m or 4.2 seconds is required. In some cases, a channel may be required. In addition, there are many needs for endoscopes, such as multiple channels and a forceps lifting mechanism, and it is necessary to constantly think about reducing the diameter to meet the needs to the minimum necessary.
それに対し、特開昭５８−４６９２４号公報に記載のも
のでは、パッケージそのらのを各１１種ＩＢに変える必
要があり、非常に高価なものになってしまうという欠点
があった。On the other hand, the method described in Japanese Patent Application Laid-Open No. 58-46924 had the disadvantage that it was necessary to change the packages to each of the 11 types of IB, resulting in a very expensive package.
なＬ１３、照明手段であるライトガイドについては、ラ
イトガイドファイバー１本当りの光量を増やすことによ
り、ライトガイドをあまり太くしないでもよいが、鉗子
ヂャンネルについては物理ωが要求されるため、細くす
ることができない。ぞのため、ライトガイドよりも鉗子
チャンネルの方が太いことが一般的である。L13. Regarding the light guide that is the illumination means, it is not necessary to make it too thick by increasing the amount of light per light guide fiber, but the forceps channel requires physical ω, so it should be made thinner. I can't. Therefore, the forceps channel is generally thicker than the light guide.
本発明は、これらの事情に鑑みてなされた・乙ので、鉗
子ヂャンネルの内径を充分取ったトで挿入部の先端構成
部の小径化を可能とした内視鏡を１Ｍ供することを目的
としている。The present invention was made in view of these circumstances, and therefore, an object of the present invention is to provide a 1M endoscope in which the diameter of the distal end component of the insertion section can be reduced by providing a sufficient inner diameter of the forceps channel. .
［問題点を解決するための手段及びその作用］前記目的
を達成するため本発明による内視鏡は、体腔内等に挿入
される挿入部先端側の先端構成部内に結像光学系と、方
形状固体撮像素子と、照明手段と、鉗子チャンネルとを
各々配置した内視鏡において、前記方形状固体ａｆ＆素
子を、その二角が先端構成部の内周に概略接するよう周
方向に偏位して設けると共に、固体偏像素子の反偏位側
の先端構成部内に鉗子チャンネルを設けている。[Means for Solving the Problems and Their Effects] In order to achieve the above object, the endoscope according to the present invention includes an imaging optical system and an imaging optical system in the distal end component on the distal end side of the insertion section inserted into the body cavity, etc. In an endoscope in which a shaped solid-state imaging device, an illumination means, and a forceps channel are respectively arranged, the rectangular solid-state AF & element is deflected in the circumferential direction so that its two corners are approximately in contact with the inner periphery of the tip component. In addition, a forceps channel is provided in the tip component on the opposite side of the solid-state deflection element.
この構成で、鉗子チャンネルの内径を必要とする太さに
形成した上で挿入部の先端構成部の径を小径にできる。With this configuration, the inner diameter of the forceps channel can be formed to a required thickness, and the diameter of the distal end component of the insertion portion can be made small.
［実施例］ 以下、図面を参照して本発明の詳細な説明覆る。[Example] Hereinafter, a detailed description of the present invention will be given with reference to the drawings.
第１図及びｆｆ１２図は本発明の一実施例に係り、第１
図は先端構成部の横断面図、第２図は縦断面図である。Figure 1 and Figure ff12 relate to one embodiment of the present invention.
The figure is a cross-sectional view of the tip component, and FIG. 2 is a longitudinal cross-sectional view.
第１図及び第２図において符号１は内視鏡挿入部の先端
に設けられた先端構成部で、この先端構成部１内には軸
方向に枠体２が内設されている。In FIGS. 1 and 2, reference numeral 1 denotes a distal end component provided at the distal end of an endoscope insertion section, and a frame 2 is provided inside this distal end component 1 in the axial direction.
イして、この枠体２の前面にはカバーガラス３が配設さ
れている一方、枠体内には結像光学系４と、この結像光
学系４の結像位置に囮像面を位置させた方形状の固体撮
像素子５とが配設されている。A cover glass 3 is disposed on the front surface of the frame 2, while an imaging optical system 4 is installed inside the frame, and a decoy image plane is positioned at the imaging position of the imaging optical system 4. A rectangular solid-state image sensor 5 is provided.
前記固体偏像素子５は、合成樹脂又はセラミックス等の
絶縁材からなる支持部材６に保持され、この支持部材６
を介して枠体２に取付けられている。The solid-state polarizing element 5 is held by a support member 6 made of an insulating material such as synthetic resin or ceramics.
It is attached to the frame 2 via.
前記支持部材６は固体撮像素子５の実部より後方に突出
した突出体６ａを有し、この突出体６ａの内周に固体１
１ｉ１像索子５の必要プリント配線６ｂが形成され、且
つこのプリント配線６ｂと固体撮像素子５の各電極とを
半田付けにて接続している一方、前記プリント配線６ｂ
から接続用端子又はピン６Ｃを延設している。The support member 6 has a protruding body 6a that protrudes rearward from the real part of the solid-state image sensor 5, and a solid body 1 is attached to the inner periphery of the protruding body 6a.
The necessary printed wiring 6b of the 1i1 image sensor 5 is formed, and the printed wiring 6b and each electrode of the solid-state image sensor 5 are connected by soldering, while the printed wiring 6b
A connecting terminal or pin 6C is extended from the terminal.
前記方形状固体囮８１素子５は、第１図に示ツＪ：うに
その二角が先端構成部１の内周に概略接りるよう周方向
に偏位して配設され、反偏位側の先端構成部５内の面積
を大きく形成している。そして、この固体撮像素子５の
反偏位側の面積の人さい先端構成部５内に、比較的大径
であることが要求される鉗子ヂＩＩンネル８が軸方向に
配設されている一方、方形状固体撮像素子５の先端描成
部内周偏位側と反偏位側の二辺を除いた他の二辺ないし
隅部と先端構成部５内周との間に照明手段としてのライ
トガイド７ど送気・送水チＶンネル９等が軸方向に配設
されている。The rectangular solid decoy 81 element 5 is arranged so as to be offset in the circumferential direction so that its two corners are approximately in contact with the inner periphery of the tip component 1, as shown in FIG. The area within the side tip forming portion 5 is formed to be large. A forceps II channel 8, which is required to have a relatively large diameter, is disposed in the axial direction within the thin tip component 5 of the area on the opposite side of the solid-state image sensor 5. A light as an illumination means is provided between the inner periphery of the tip forming portion 5 and the other two sides or corners of the tip drawing portion of the rectangular solid-state image sensor 5 excluding the two sides on the inner periphery deviation side and anti-deviation side. A guide 7, an air/water supply channel 9, etc. are arranged in the axial direction.
このＪ、うに、方形状の固体搬像素子５が、先端構成部
１の内周に概略接するよう周方向に偏位して配置されて
いることにより、反偏位側の先端構成部５内の面積を大
きく取れ、この面積の大きい部位に、各種処訂具を挿通
し内径が大きいことが要求される鉗子プヤンネル８を配
置して、該チャンネル８内径を制約することなく内視鏡
挿入部先端構成部を細径化できる。This square-shaped solid-state imager 5 is disposed offset in the circumferential direction so as to be approximately in contact with the inner periphery of the tip component 1, so that it can be placed inside the tip component 5 on the opposite side of the deflection. The forceps channel 8, which is required to have a large inner diameter through which various treatment tools can be inserted, is placed in this large area, and the endoscope insertion section can be inserted without restricting the inner diameter of the channel 8. The diameter of the tip component can be reduced.
又、固体搬像索子５の必要配線を支持部材６にプリント
配線しているので、必要配線が容易である上に径方向の
面積を取らず小径化に寄与することが可能であり、又内
視鏡先端構成部１内における固体搬像索子５の交換が容
易である。In addition, since the necessary wiring for the solid-state carrier cable 5 is printed on the support member 6, the necessary wiring is easy, and the area in the radial direction is not taken up, which contributes to a reduction in diameter. The solid image carrier 5 in the endoscope tip component 1 can be easily replaced.
さらに、一般のＴＶカメラ等に用いられる汎用の方形状
固体搬像素子をそのまま用いることが可能であり、量産
効果にＪ、す、安価にできる。Furthermore, a general-purpose rectangular solid-state image carrier used in general TV cameras and the like can be used as is, and mass production can be achieved at a very low cost.
尚、本発明において、前記実施例では方形状固体泥水素
子５を支持部材６を介しＣ枠体２に取付けているが、こ
の枠体２を省略して支持部材６をｌｉ′ｌ接先端溝先端
構成部１内・１けてもＪ、く、或いは結像光学系４及び
固体搬像索子５を直接取（＝Ｊ番プるＪ、う枠体２を形
成し且つこの枠体２を合成樹脂、ロラミックス等の絶縁
材にて形成し、この枠体２に前記固体搬像索子５の必要
なプリント配線６ｂを施すようにしてもよい。In the present invention, in the above embodiment, the rectangular solid mud hydrogen element 5 is attached to the C frame 2 via the support member 6, but this frame 2 is omitted and the support member 6 is attached to the li'l contact end groove. Inside the tip component 1, take the first digit J, or directly take the imaging optical system 4 and the solid image carrier 5 (= J number pull J, form the frame body 2 and The frame body 2 may be formed of an insulating material such as synthetic resin or Lolamix, and the necessary printed wiring 6b of the solid image carrier 5 may be provided on the frame body 2.
尚、又、本発明において方形状の固体ｖｄ像水素子実施
例の如く先端構成部内径方向のみならず、斜め方向にも
配置される。又、照明手段としてはライトガイドではな
く例えば発光ダイオード等の光源を先端構成部内に内設
してもよい。In addition, in the present invention, the rectangular solid-state VD image hydrogen element is arranged not only in the inner diameter direction of the tip structure but also in an oblique direction. Furthermore, as the illumination means, instead of the light guide, a light source such as a light emitting diode may be provided inside the tip component.
［発明の効果］
以上説明したように本発明によれば、鉗子チＶンネルの
内径を充分取った上で挿入部の先端構成部の小径化を可
能にでさる効果がある。[Effects of the Invention] As explained above, according to the present invention, it is possible to reduce the diameter of the distal end component of the insertion portion while ensuring a sufficient inner diameter of the forceps channel.
第１図及び第２図は本発明の一実施例に係り、第１図は
先端構成部の横断面図、第２図はａｍ面図である。
１・・・先端構成部 ４・・・結像光学系５・・・固
体陽像素子 ７・・・ライトガイド８．９・・・ヂャン
ネル
第２図FIGS. 1 and 2 relate to an embodiment of the present invention, with FIG. 1 being a cross-sectional view of the tip component, and FIG. 2 being an am-plane view. 1...Tip component 4...Imaging optical system 5...Solid positive image element 7...Light guide 8.9...Channel Figure 2
Claims (1)
像光学系と、方形状固体撮像素子と、照明手段と、鉗子
チャンネルとを各々配置し、前記方形状固体撮像素子を
、二角が先端構成部の内周に概略接するよう周方向に偏
位して設けると共に、固体偏像素子の反偏位側の先端構
成部内に鉗子チャンネルを設けたことを特徴とする内視
鏡。An imaging optical system, a rectangular solid-state image sensor, an illumination means, and a forceps channel are respectively disposed within the distal end component on the distal end side of the insertion section inserted into a body cavity, etc., and the rectangular solid-state image sensor is What is claimed is: 1. An endoscope comprising: a forceps channel that is offset in the circumferential direction so that a corner thereof is approximately in contact with the inner periphery of the tip component; and a forceps channel provided within the tip component on the opposite side of the deflection of the solid-state polarizing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62094110A JPS62249636A (en) | 1987-04-15 | 1987-04-15 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62094110A JPS62249636A (en) | 1987-04-15 | 1987-04-15 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62249636A true JPS62249636A (en) | 1987-10-30 |
| JPH0410330B2 JPH0410330B2 (en) | 1992-02-25 |
Family
ID=14101296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62094110A Granted JPS62249636A (en) | 1987-04-15 | 1987-04-15 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62249636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001517519A (en) * | 1997-09-29 | 2001-10-09 | ボストン サイエンティフィック コーポレイション | Visible display for intervention devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545380U (en) * | 1978-09-21 | 1980-03-25 | ||
| JPS575537A (en) * | 1980-06-12 | 1982-01-12 | Fuji Heavy Ind Ltd | Engine with turbo charger |
| JPS5725827A (en) * | 1980-07-21 | 1982-02-10 | Olympus Optical Co | Endoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54105185A (en) * | 1978-02-04 | 1979-08-17 | Fuji Shoji | Method of vulcanizing tire |
-
1987
- 1987-04-15 JP JP62094110A patent/JPS62249636A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545380U (en) * | 1978-09-21 | 1980-03-25 | ||
| JPS575537A (en) * | 1980-06-12 | 1982-01-12 | Fuji Heavy Ind Ltd | Engine with turbo charger |
| JPS5725827A (en) * | 1980-07-21 | 1982-02-10 | Olympus Optical Co | Endoscope |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001517519A (en) * | 1997-09-29 | 2001-10-09 | ボストン サイエンティフィック コーポレイション | Visible display for intervention devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0410330B2 (en) | 1992-02-25 |
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