JP2006325690A - Distal end protective cap for endoscope - Google Patents

Distal end protective cap for endoscope Download PDF

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JP2006325690A
JP2006325690A JP2005150277A JP2005150277A JP2006325690A JP 2006325690 A JP2006325690 A JP 2006325690A JP 2005150277 A JP2005150277 A JP 2005150277A JP 2005150277 A JP2005150277 A JP 2005150277A JP 2006325690 A JP2006325690 A JP 2006325690A
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endoscope
protection cap
distal protection
insertion portion
leading end
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JP2005150277A
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Keiji Kunii
圭史 國井
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Pentax Corp
ペンタックス株式会社
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Priority to JP2005150277A priority Critical patent/JP2006325690A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002Operational features of endoscopes
    • A61B1/00057Operational features of endoscopes provided with means for testing or calibration

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distal end protective cap for an endoscope capable of individually providing a color index for white balance without raising a cost. <P>SOLUTION: The distal end protective cap for the endoscope is formed by molding so as to be freely detachably attached to an insertion part distal end 1a in order to cover and protect the insertion part distal end 1a where an observation window 1b of the endoscope is arranged when keeping the endoscope. The composition of raw materials is prepared so that an image obtained through the observation window 1b at the insertion part distal end 1a of the endoscope in the state of being covered with the distal end protective cap 10 is suitable for adjusting the white balance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、内視鏡保管時等に内視鏡の挿入部先端を保護するために取り付けられる内視鏡の先端保護キャップに関する。 This invention relates to distal protection cap of the endoscope is attached to protect the leading end of the insertion portion of the endoscope in the endoscope during storage or the like.

内視鏡観察画像をテレビモニタに表示するいわゆる電子内視鏡等において適正な診断を行うことができる正確な色再現を得るためには、内視鏡を使用する前にホワイトバランスを調整する必要がある。 The endoscope observation image in order to obtain accurate color reproduction which can perform appropriate diagnostic in a so-called electronic endoscope or the like to be displayed on the television monitor, necessary to adjust the white balance before using the endoscope there is.

しかし、内視鏡のホワイトバランス調整を行うためにはホワイトバランス調整用の基準色で作成された色指標を用いる必要があり、そのような色指標を常に使用できる状態に準備しておくのは結構面倒なことである。 However, in order to perform endoscopic white balance adjustment needs to use a color index that is created by the reference color for white balance adjustment, keep prepared for ready always use such color indicators is that quite tedious.

そこで、内視鏡保管時等に内視鏡の挿入部先端を保護するために取り付けられる内視鏡の先端保護キャップの内面に色指標を設けて、内視鏡の挿入部先端に先端保護キャップを取り付けた状態でホワイトバランスの調整を行えるようにしたものがある(例えば、特許文献1)。 Therefore, the color indicator on the inner surface of the distal protection cap of the endoscope is attached to protect the leading end of the insertion portion of the endoscope in the endoscope during storage or the like is provided, the tip protector cap into the insertion portion distal end of the endoscope is that so as to perform white balance adjustment in a state of mounting (for example, Patent Document 1).
特開2002−51968 JP 2002-51968

図10は、色指標91が設けられた従来の内視鏡の先端保護キャップの一例を示しており、弾力性のある材料で形成された先端保護キャップ90内に色指標91が塗装又は貼り付け等によって設けられている。 Figure 10 is a color indicator 91 shows an example of a distal protection cap of the conventional endoscope provided with color index 91 painting or pasting in the tip protective cap 90 formed by a resilient material It is provided by, for example.

そして、そのような先端保護キャップ90に内視鏡挿入部1の先端部分1aを差し込み係合させることにより色指標91を内視鏡観察して、図示されていないビデオプロセッサ側においてホワイトバランスの調整が行われる。 And such tip protector endoscope insertion portion 1 of the tip portion 1a color index 91 by causing the plug engaged with and observing the endoscope cap 90, white balance adjustment in a video processor side (not shown) It is carried out.

しかし、先端保護キャップ90は内視鏡一台毎に各々取り付けられるものなので、全ての先端保護キャップ90の内面に色指標91を塗装又は貼り付ける構造を採ることは製造コストのアップにつながる欠点がある。 However, since the distal end protective cap 90 is such that is each mounted to the endoscope every single, the disadvantage to take all of the inner surface in the color index 91 paint or paste structure of the distal end protective cap 90 is connected to the manufacturing cost of the up is there.

そこで本発明は、ホワイトバランス用の色指標をコストアップになることなく個々に設けることができる内視鏡の先端保護キャップを提供することを目的とする。 Accordingly, the present invention aims at providing a tip protective cap of the endoscope can be provided individually without becoming a color index for white balance in cost.

上記の目的を達成するため、本発明の内視鏡の先端保護キャップは、内視鏡の観察窓が配置されている挿入部先端を内視鏡保管時に覆って保護するために、挿入部先端に着脱自在に取り付けられるようモールディング成型により形成された内視鏡の先端保護キャップであって、先端保護キャップで覆われた状態の内視鏡の挿入部先端の観察窓を通して得られる画像がホワイトバランスを調整するのに適するように、原材料の組成が調合されたものであり、原材料が、弾力性のあるゴム材又はプラスチック材とそのゴム材又はプラスチック材を白色に着色するための着色材とを含んだものであってもよい。 To achieve the above object, distal protection cap of the endoscope of the present invention, in order to cover and protect the leading end of the insertion portion of the observation window of the endoscope is disposed at the endoscope storage, the leading end of the insertion portion detachable a distal protection cap of the endoscope, which is formed by molding the molding to be freely mounted, the image is white balance obtained through the insertion tip of the observation window of the endoscope in a state of being covered with a distal protection cap as suitable for adjusting, which composition of raw materials is formulated, raw material, and a coloring material for coloring rubber or plastic material is resilient and the rubber or plastic material to white it may be the one that contains.

また本発明の内視鏡の先端保護キャップは、内視鏡の観察窓が配置されている挿入部先端を内視鏡保管時に覆って保護するために、挿入部先端に着脱自在に取り付けられるようモールディング成型により形成された内視鏡の先端保護キャップであって、先端保護キャップで覆われた状態の内視鏡の挿入部先端の観察窓を通して得られる画像が内視鏡観察画像の所定の状態を点検するのに適するように、原材料の組成が調合されたものであり、原材料が、弾力性のあるゴム材又はプラスチック材と蛍光材とを含んだものであってもよい。 The distal protection cap of the endoscope of the present invention, in order to cover and protect the leading end of the insertion portion of the observation window of the endoscope is disposed at the endoscope storage, as removably attached to the leading end of the insertion portion a distal protection cap of the endoscope, which is formed by molding the molding, a predetermined state of the endoscope observation image is an image obtained through the insertion tip of the observation window of the endoscope in a state of being covered with a distal protection cap as suitable for inspecting the, which composition of raw materials is formulated, the raw material may be those containing a rubber material or plastic material and the fluorescent material is resilient.

そして、先端保護キャップが内視鏡の挿入部先端に取り付けられた時に、内視鏡の観察窓がそれに対向する先端保護キャップの面に当接するようにしてもよく、その場合、先端保護キャップが内視鏡の挿入部先端に取り付けられて内視鏡の観察窓がそれに対向する先端保護キャップの面に当接した状態の時に、内視鏡の挿入部先端が先端保護キャップから抜け出すのを防止するための抜け止め部材が設けられていてもよい。 When the distal protection cap is attached to the leading end of the insertion portion of the endoscope, it may also be an observation window of the endoscope comes into contact with the surface of the tip protector cap facing thereto, in which case, the tip protective cap in a state where the observation window of the endoscope insertion portion endoscope attached to the tip is brought into contact with the surface of the tip protector cap facing it, preventing the leading end of the insertion portion of the endoscope to get out of the distal end protective cap retaining member may be provided for.

また、その場合、内視鏡の挿入部先端を先端保護キャップ内から引き戻して内視鏡の観察窓とそれに対向する先端保護キャップの面との間に間隔があいた状態にした時に、先端保護キャップを内視鏡の挿入部先端に弾力的に係止する係止部材が設けられていてもよく、その抜け止め部材が係止部材を兼ねていてもよい。 In that case, when the state space is perforated between the endoscope insertion portion face of the observation window and the distal end protective cap facing thereto of the endoscope tip is pulled back from the distal protection cap, tip protection cap may have the locking member is provided for resiliently engaging the leading end of the insertion portion of the endoscope, the retaining member may also serve as a locking member.

また、先端保護キャップが内視鏡の挿入部先端に取り付けられた時に、内視鏡の観察窓がそれに対向する先端保護キャップの面に当接しないように観察窓とそれに対向する先端保護キャップの面との間の間隔を確保するためのストッパが設けられていてもよく、その場合、先端保護キャップが内視鏡の挿入部先端に取り付けられて内視鏡の観察窓と先端保護キャップの面との間の間隔がストッパにより確保された状態の時に、内視鏡の挿入部先端付近に弾力的に係合して内視鏡の挿入部先端が先端保護キャップから抜け出すのを防止するための抜け止め部材が併設されていてもよい。 Further, when the tip protective cap is attached to the leading end of the insertion portion of the endoscope, the distal protection cap observation window of the endoscope is opposed viewing window and it so as not to contact the surface of the tip protector cap facing thereto may have a stopper is provided for securing the spacing between the surface, the surface of the case, the observation window of the endoscope tip protector cap is attached to the leading end of the insertion portion of the endoscope and the distal protection cap when the state space is ensured by the stopper between, the endoscope front end of the endoscope near resiliently engage the insertion tip is to prevent the break out of the distal end protective cap retaining member may be the hotel.

また、その場合、ストッパと抜け止め部材とが各々、内視鏡の挿入部先端の近傍であってその後方の外周に形成された凹凸部に弾力的に係合するように、先端保護キャップの内面に突設されていてもよい。 In that case, each of the retaining member and the stopper, a vicinity of the leading end of the insertion portion of the endoscope so as to resiliently engage the concave and convex portion formed on the outer circumference of the rear of the distal protection cap it may be projected from the inner surface.

なお、内視鏡の先端保護キャップが、挿入部先端に被さった状態に係合する内筒とその内筒に対して径方向に空間をあけて内筒を囲む状態に配置された外筒とを一体に連結した構成であってもよく、その場合、内筒と外筒とが、内筒に対する挿入部先端の挿脱口側において連結されていてもよい。 Incidentally, distal protection cap of the endoscope, the inner cylinder to engage the state where overhanging the leading end of the insertion portion and the outer cylinder arranged to surround the inner tube with a space in the radial direction with respect to the inner tube it may be configured to be integrally connected to, in which case, the inner cylinder and the outer cylinder may be connected in insertion slot side of the insertion tip with the inner cylinder.

そして、内筒が、挿入部先端の挿脱口側へ次第に内径が大きくなるテーパ筒状に形成されていてもよく、外筒が、内筒との連結部側へ次第に径が小さくなるテーパ筒状に形成されていてもよい。 Then, the inner cylinder is may be formed in a tapered cylindrical shape progressively the inner diameter to the insertion slot side of the insertion tip is increased, the outer tube is tapered tube progressively diameter to the connecting portion side of the inner cylinder is reduced it may be formed on. また、内筒の先端部分が外筒の内側に潜った位置に配置されていてもよい。 Further, it may be disposed at a position where the tip portion of the inner cylinder is dived inside the outer tube.

本発明によれば、モールディング成型により形成される先端保護キャップ自体がホワイトバランス調整のための色指標になるので、ホワイトバランス用の色指標をコストアップになることなく個々の先端保護キャップに設けることができる。 According to the present invention, since the distal end protective cap itself, which is formed by molding the molding is colored indicators for white balance adjustment, it is provided on each distal protection cap without becoming a color index for white balance in cost can. さらに、先端保護キャップをホワイトバランス調整以外の内視鏡観察画像の所定の状態を点検できるようにすることもできる。 It is also possible to make the tip protector cap can check the predetermined state of the endoscope observation image other than the white balance adjustment.

内視鏡の観察窓が配置されている挿入部先端を内視鏡保管時に覆って保護するために、挿入部先端に着脱自在に取り付けられるようモールディング成型により形成された内視鏡の先端保護キャップであって、先端保護キャップで覆われた状態の内視鏡の挿入部先端の観察窓を通して得られる画像がホワイトバランスを調整するのに適するように、原材料の組成が調合されている。 The insertion portion distal end observation window of the endoscope is disposed for covering and protecting at the endoscope storage, distal protection cap of the endoscope, which is formed by molding the molding to be removably attached to the leading end of the insertion portion a is an image obtained through the insertion tip of the observation window of the endoscope in a state of being covered with a distal protection cap is to be suitable for adjusting the white balance, the composition of the raw materials are formulated.

図面を参照して本発明の実施例を説明する。 With reference to the accompanying drawings illustrating the embodiment of the present invention.
図2において、1は可撓管状の内視鏡の挿入部であり、その最先端部である挿入部先端1aに観察窓等が配置され、挿入部先端1aの後側に隣接する部分は操作部2からの遠隔操作によって屈曲する湾曲部1wになっている。 2, 1 is the insertion portion of the endoscope of the flexible tubular its forefront portion observation window or the like into the insertion tip 1a is a is disposed, a portion adjacent to the rear side of the leading end of the insertion portion 1a is operated It has a curved portion 1w bent by remote control from part 2.

操作部2は挿入部1の基端に連結されていて、ビデオプロセッサ(兼光源装置)50に接続されるコネクタ部3が、操作部2から延出する可撓性連結管4の先端に取り付けられている。 Operation unit 2 have been connected to the proximal end of the insertion portion 1, the connector portion 3 to be connected to the video processor (and the light source device) 50, attached to the tip of the flexible connection tube 4 extending from the operation section 2 It is.

この内視鏡は挿入部先端1aに固体撮像素子5が内蔵されたいわゆる電子内視鏡であり、その固体撮像素子5で撮像された内視鏡観察画像が、ビデオプロセッサ50で処理されてテレビモニタ51に表示される。 The endoscope is a so-called electronic endoscope which the solid-state imaging device 5 is incorporated in the leading end of the insertion portion 1a, the endoscope observation image imaged by the solid-state imaging device 5 is, is processed by the video processor 50 TV It is displayed on the monitor 51.

先端保護キャップ10は、そのような挿入部先端1aに対して着脱自在に設けられており、図3と図4は、先端保護キャップ10が挿入部先端1aに取り付けられる前後の状態を各々拡大して示している。 Tip protective cap 10, such is provided detachably with respect to the leading end of the insertion portion 1a, 3 and 4, each expanded states before and after the tip protective cap 10 is attached to the leading end of the insertion portion 1a shows Te.

図3に示されるように、内視鏡の挿入部先端1aの先端面には観察窓1bと照明窓1c等が配置されていて、観察窓1bの奥に対物レンズと固体撮像素子5等が内蔵されている。 As shown in FIG. 3, the distal end surface of the leading end of the insertion portion 1a of the endoscope is disposed observation window 1b and the illumination window 1c, etc., an objective lens and a solid-state imaging device 5 or the like on the back of the observation window 1b is It is built. 1dは、湾曲部1wの後端部にできる挿入部1の継ぎ目を外装するように周方向に突設された外装管であり、金属製の管材により形成されている。 1d is a joint of the insertion portion 1 can be a rear end portion of the bending portion 1w an outer tube which projects in the circumferential direction so that the exterior is formed by a metallic tube.

先端保護キャップ10の内部構造は、先端保護キャップ10が挿入部先端1aに取り付けられた状態の側面断面図である図5に詳細に図示されており、図6はその図5における矢視VI図、図7はVII−VII断面図である。 The internal structure of the distal end protective cap 10, distal protection cap 10 is illustrated in detail in FIG. 5 is a side sectional view of a state of being attached to the leading end of the insertion portion 1a, FIG. 6 is taken along line VI view of the FIG. 5 FIG. 7 is a sectional view taken along line VII-VII.

以上の各図に示されるように、先端保護キャップ10は、挿入部先端1aが差し込まれ、その挿入部先端1aを覆う状態に挿入部先端1aと係合する円筒状の内筒11と、その内筒11に対して径方向に空間をあけて内筒11を囲む状態に配置された円筒状の外筒12とが、適度の弾性を有するゴム材又はプラスチック材により一体にモールディング成型で形成されて一体に連結された構成になっている。 As shown in the figures above, the distal end protective cap 10 is inserted into the insertion portion distal end 1a, a cylindrical inner tube 11 which engages the leading end of the insertion portion 1a in a state covering the insertion tip 1a, the the inner cylinder 11 outer cylinder 12 disposed to surround the inner cylinder 11 with a space in the radial direction with respect to the is formed by molding integrally molded of a rubber material or a plastic material having suitable elasticity It has become linked integrally formed Te.

内筒11は、先端壁11bを有していて基端側である挿脱口11a側へ次第に内径が大きくなるテーパ筒状に形成されていて、その挿脱口11aの周囲の部分と外筒12の一端側とが連結壁13により連結されている。 The inner cylinder 11, be formed in a tapered cylindrical shape progressively inside diameter increases have front end wall 11b to the insertion slot 11a side is the base end side, of the periphery of the insertion slot 11a portion and the outer tube 12 and one end is connected by a connecting wall 13. 連結壁13部分には、洗浄時のための例えば2個の水抜き孔17が、内部と外部とを通じさせる状態に形成されている。 The connecting wall 13 portion, for example, two drain holes 17 for the time of washing have been formed is establishing communication between the inside and the outside.

内筒11の先端部分は、内視鏡の挿入部先端1aが差し込まれることにより拡径方向に弾性変形して内視鏡の挿入部先端1aの外周部に対し弾力的に締め付ける状態に係合する弾力締め付け部14になっている。 The distal end portion of the inner cylinder 11, the engaging against the outer peripheral portion of the leading end of the insertion portion 1a of the endoscope elastically deformed diameter direction by inserting tip 1a of the endoscope is inserted in a state where tightening resiliently It has become resilient clamping portion 14.

そして、内筒11の最先端部分には、内視鏡の挿入部先端1aが差し込まれた時に観察窓1b等が配置されている先端面が当接する先端壁11bが形成されている。 Then, the leading edge portion of the inner cylinder 11, the distal end surface of the observation window 1b or the like when the leading end of the insertion portion 1a of the endoscope is inserted is disposed in contact with the tip wall 11b is formed. ただし、断面形状がV字状の割り溝15が弾力締め付け部14の外周壁からその先端壁11b側にまたがって例えば120°間隔に3箇所に形成されており、弾力締め付け部14が周方向に複数に分割されて径方向に弾性変形し易くなっている。 However, are formed at three positions, for example, 120 ° intervals across its front end wall 11b side cross section from the outer wall of the V-shaped split groove 15 is resilient clamping portion 14, the resilient clamping portion 14 is circumferentially and it is easily elastically deformed in the radial direction is divided into a plurality.

また、内筒11の途中の部分には、内視鏡の挿入部先端1aを内筒11内に弾力的に保持するための抜け止め爪16(抜け止め部材)が内方に向けて突設されている。 Further, in the middle part of the inner cylinder 11, with retaining claws 16 for resiliently holding the endoscope in the leading end of the insertion portion 1a of the inner cylinder 11 (retaining member) is directed inwardly projecting It is. この実施例の抜け止め爪16は、図7に示されるように、周方向において3分割された状態に間隔をあけて3個設けられており、内筒11を形成する部材自体により内筒11と一体成形されている。 Retaining pawl 16 of this embodiment, as shown in FIG. 7, three provided at intervals in 3 divided state in the circumferential direction, the inner by members themselves forming the inner cylinder 11 cylinder 11 and it is integrally molded.

抜け止め爪16は、無負荷時の内径寸法が挿入部1の外装管1dの外径寸法より小さく形成されており、挿入部先端1aを内筒11内に差し込むと、抜け止め爪16が、弾性変形しながら外装管1dを乗り越えた後自己の弾力により元の形状に戻って、外装管1dが抜け方向に移動するのを阻止する。 Retaining pawl 16, the inner diameter of no load is formed smaller than the outer diameter of the outer tube 1d of the insertion portion 1, when inserting the insertion portion distal end 1a in the inner cylinder 11, the retaining pawl 16, returning to the original shape by its own elasticity after overcoming an outer tube 1d while being elastically deformed, and prevented from moving in the direction missing outer tube 1d.

ただし、挿入部先端1aに取り付けられた状態の先端保護キャップ10を挿入部1に対して強く引っ張れば、抜け止め爪16が弾性変形して外装管1dを乗り越え、挿入部先端1aを内筒11内から抜き出すことができる。 However, the insertion portion by pulling strongly tip protective cap 10 that is attached to the distal end 1a to the insertion portion 1, retaining over the outer tube 1d pawl 16 is elastically deformed, the leading end of the insertion portion 1a of the inner cylinder 11 it can be withdrawn from within.

外筒12は、連結壁13側へ次第に径が小さくなるテーパ筒状に形成されており、床に落としたり机にぶつけた時に、連結壁13と逆側の端部である開口端12a側がぶつかり易い形状になっている。 The outer cylinder 12 is formed in a tapered cylindrical shape progressively diameter to the connecting wall 13 side is decreased, when bumped on a desk or dropped on the floor, an opening end 12a side, which is the end portion of the connecting wall 13 and the opposite side bumped It has become easy to shape.

そして、内筒11はその先端壁11bが外筒12の内側に潜った位置に位置するように、先端壁11bが外筒12の開口端12aより内側に引っ込んだ位置に配置され、床に落としたり机にぶつけた時に、弾力締め付け部14内に保持されている挿入部先端1aに衝撃が伝わり難くなっている。 As the inner cylinder 11 is located at the position where the front end wall 11b is dived inside the outer cylinder 12, distal end wall 11b is arranged in a retracted position from the opening end 12a of the barrel 12 inwardly, dropped on the floor when bumped into a desk or impact is not easily transmitted to the leading end of the insertion portion 1a held by the elastic clamping portion 14.

このように構成された実施例の内視鏡の先端保護キャップにおいては、挿入部先端1aに先端保護キャップ10が取り付けられた状態で床に落としたり固い机等にぶつけても、図8に示されるように、直接の衝撃を受ける外筒12が弾性変形することで衝撃が吸収されるので、大きな衝撃が内筒11に伝わらない。 In distal protection cap of the endoscope of the thus constituted embodiment, even hit the drop to the floor or hard desk or the like in a state where the tip protector cap 10 to the leading end of the insertion portion 1a fitted, shown in FIG. 8 as, because direct shock sheath 12 impact is absorbed by the elastic deformation, a large impact is not transmitted to the inner cylinder 11.

したがって、内筒11内に保持されている内視鏡の挿入部先端1aが大きな衝撃を受けないので、挿入部先端1aに内蔵されている対物レンズや固体撮像素子5等が破損するような重故障が発生しない。 Accordingly, since the leading end of the insertion portion 1a of the endoscope is held in the inner cylinder 11 is not subjected to a large shock, such as such as the insertion portion objective lens and the solid-state imaging device is incorporated in the front end 1a 5 is broken heavy failure does not occur.

このように構成された先端保護キャップ10は、例えばシリゴンゴム材等のようなゴム材又は弾力性のあるプラスチック材と、その材料を白色に着色するための着色材とを含む原材料によりモールディング成型で形成されている。 Thus constructed tip protective cap 10 is formed by molding molded by raw materials including for example a plastic material with a rubber material or resilient, such as Shirigongomu material and a colorant for coloring the material in white It is.

その原材料の組成は、モールディング成型後の表面色が、観察窓1bを通して固体撮像素子5で撮像される内視鏡観察画像のホワイトバランスを調整するのに適した白色になるように調合されている。 The composition of the raw material, the surface color after molding the molding has been formulated so that the white suitable for white balancing an endoscope observation image that is captured by the solid-state imaging device 5 through the inspection window 1b .

ホワイトバランス調整を行う際には、図1に示されるように、内視鏡の挿入部先端1aを先端保護キャップ10内から少し引き戻して、挿入部1の外装管1dの外周面に先端保護キャップ10の抜け止め爪16が弾力的に押しつけられた状態にする。 White when performing balance adjustment, as shown in FIG. 1, slightly pulling back the insertion tip 1a of the endoscope from the distal end protective cap 10 within the tip protective cap on the outer peripheral surface of the outer tube 1d of the insertion portion 1 retaining pawl 16 of 10 to a state of being pressed elastically.

すると、観察窓1bとそれに対向する先端保護キャップ10の内筒11の先端壁11bの内面との間に少し間隔があいた状態が維持されて、ビデオプロセッサ50でホワイトバランス調整を容易に行うことができる。 Then, the observation window 1b and is maintained a state in which Ai is a bit gap between the inner surface of the front end wall 11b of the inner cylinder 11 of tip protector cap 10 facing thereto, be easily performs white balance adjustment by the video processor 50 it can.

このように、本実施例においては、挿入部先端1aが先端保護キャップ10から抜け出すのを防止するための抜け止め爪16と外装管1dとが、観察窓1bと先端保護キャップ10の内面との間に間隔をあけた状態で先端保護キャップ10を挿入部先端1aに弾力的に係止する係止部材も兼用している。 Thus, in this embodiment, the leading end of the insertion portion 1a and the stopper pawl 16 and the outer tube 1d to prevent the break out of the distal end protective cap 10, the inner face of the observation window 1b and distal protection cap 10 It is also combined locking member for resiliently engaging the distal protection cap 10 in a state spaced insertion tip 1a between. ただし、そのような係止部材は必ずしも設けなくても差し支えない。 However, no problem even if such a locking member is not necessarily provided.

図9は本発明の第2の実施例を示しており、先端保護キャップ10が内視鏡の挿入部先端1aに取り付けられた時に、観察窓1bがそれに対向する先端保護キャップ10の先端壁11bの内面に当接しないように、観察窓1bと先端壁11bの内面との間の間隔を確保するためのストッパ19を設けたものである。 Figure 9 shows a second embodiment of the present invention, when the tip protector cap 10 is attached to the leading end of the insertion portion 1a of the endoscope, the distal end wall 11b of the distal end protective cap 10 observation window 1b is opposed to it so as not to contact the inner surface of the one in which the stopper 19 for securing the spacing between the inner surface of the observation window 1b and the front end wall 11b is provided.

この実施例のストッパ19は内筒11の内面の全周にわたって内方に突出形成されており、挿入部1の外装管1dの前縁側に当接することにより、挿入部1が先端保護キャップ10内にそれ以上挿入できなくなる。 Stopper 19 of this embodiment is formed to protrude inward around the entire circumference of the inner surface of the inner cylinder 11, by abutting the front edge of the outer tube 1d of the insertion portion 1, the insertion portion 1 is distal protection cap 10 in It can not be inserted more than that.

また、そのようにしてストッパ19が外装管1dに当接した状態において、第1の実施例と同様の抜け止め爪16が外装管1dの後縁側に弾力的に係合するように内筒11の内面に分割して突設されていて、挿入部先端1aが先端保護キャップ10から抜け出すのを防止している。 In a state where the stopper 19 in this manner is in contact with the outer tube 1d, the first embodiment and similar to stopper the inner cylinder as the pawl 16 is resiliently engage the rear edge of the outer tube 1d 11 have been projected by dividing the to the inner surface, the leading end of the insertion portion 1a is prevented from exiting the distal end protective cap 10.

その他の構成は第1の実施例と同じであり、この第2の実施例によれば、内視鏡保管状態において観察窓1bとそれに対向する先端保護キャップ10の先端壁11bの内面との間に間隔があいているので、そのままの状態でホワイトバランスの調整を容易に行うことができる。 Other configurations are the same as the first embodiment, between the according to the second embodiment, the inner surface of the front end wall 11b of the distal end protective cap 10 to the observation window 1b facing it in the endoscope storage conditions since spacing is free, it is possible to easily adjust the white balance as is.

なお、本発明は上記実施例に限定されるものではなく、例えば先端保護キャップ10の原材料として弾力性のあるゴム材又はプラスチック材に蛍光材が混合されたものを用いることにより、いわゆる蛍光観察内視鏡や共焦点内視鏡等の内視鏡観察画像の所定の状態を使用前に点検することができ、原材料の組成をそのような点検に適するように調合する場合も、本発明の範囲に含まれる。 The present invention is not limited to the above embodiments, for example by using what fluorescent material rubber or plastic material is resilient as a raw material for distal protection cap 10 is mixed, in the so-called fluoroscopy the predetermined state of the endoscope observation image, such as endoscopic or confocal endoscope can check to prior to use, it may be formulated to suit the composition of raw materials such inspection, the scope of the present invention include.

本発明の第1の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられてホワイトバランス調整が行われる状態の側面断面図である。 The tip protective cap of the first embodiment is attached to the leading end of the insertion portion of the endoscope of the present invention is a side sectional view showing a state in which the white balance adjustment is performed. 本発明の第1の実施例の内視鏡と先端保護キャップの全体構成を示す外観図である。 It is an external view showing the overall configuration of the endoscope and the distal end protective cap of the first embodiment of the present invention. 本発明の第1の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられる前の状態の斜視図である。 Is a perspective view of a first embodiment of a prior distal protection cap is attached to the leading end of the insertion portion of the endoscope in the state of the present invention. 本発明の第1の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられた後の状態の斜視図である。 Is a perspective view of a state after the distal protection cap of the first embodiment is attached to the leading end of the insertion portion of the endoscope of the present invention. 本発明の第1の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられた保管状態の側面断面図である。 Is a side cross-sectional view of the storage state of distal protection cap is attached to the leading end of the insertion portion of the endoscope of the first embodiment of the present invention. 本発明の第1の実施例の先端保護キャップの側面図(図5における矢視VI図)である。 It is a side view of the distal end protective cap of the first embodiment of the present invention (arrow VI view of FIG. 5). 本発明の第1の実施例の先端保護キャップの図5におけるVII−VII断面図である。 It is a sectional view taken along line VII-VII in FIG. 5 of the distal protection cap of the first embodiment of the present invention. 本発明の第1の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられた使用状態の側面断面図である。 It is a side sectional view of a use state in which the leading end protecting cap is attached to the leading end of the insertion portion of the endoscope of the first embodiment of the present invention. 本発明の第2の実施例の先端保護キャップが内視鏡の挿入部先端に取り付けられた状態の側面断面図である。 It is a side sectional view of a state where the distal protection cap of the second embodiment is attached to the leading end of the insertion portion of the endoscope of the present invention. 従来の先端保護キャップが内視鏡の挿入部先端に取り付けられた状態の側面断面図である。 Conventional tip protective cap is a side sectional view of a state of being attached to the leading end of the insertion portion of the endoscope.

符号の説明 DESCRIPTION OF SYMBOLS

1 挿入部 1a 挿入部先端 1b 観察窓 1d 外装管 10 先端保護キャップ 11 内筒 11b 先端壁 12 外筒 16 抜け止め爪(抜け止め部材) 1 insertion portion 1a leading end of the insertion portion 1b observation window 1d inside the outer tube 10 distal protection cap 11 tube 11b front end wall 12 the outer tube 16 retaining claw (retaining member)
19 ストッパ 19 stopper

Claims (16)

  1. 内視鏡の観察窓が配置されている挿入部先端を上記内視鏡保管時に覆って保護するために、上記挿入部先端に着脱自在に取り付けられるようモールディング成型により形成された内視鏡の先端保護キャップであって、 The insertion portion distal end observation window of the endoscope is disposed for covering and protecting at the time of storage the endoscope, the distal end of an endoscope which is formed by molding the molding to be removably attached to the leading end of the insertion portion a protective cap,
    上記先端保護キャップで覆われた状態の上記内視鏡の挿入部先端の観察窓を通して得られる画像がホワイトバランスを調整するのに適するように、原材料の組成が調合されていることを特徴とする内視鏡の先端保護キャップ。 As image obtained through the observation window of the insertion tip of the endoscope in the state covered with the distal protection cap suitable to adjust the white balance, characterized in that the composition of the raw materials is formulated distal protection cap of the endoscope.
  2. 上記原材料が、弾力性のあるゴム材又はプラスチック材とそのゴム材又はプラスチック材を白色に着色するための着色材とを含んでいる請求項1記載の内視鏡の先端保護キャップ。 The raw materials, distal protection cap of the endoscope according to claim 1, wherein comprising a coloring material for the rubber or plastic material and its rubber or plastic material is colored white resilient.
  3. 内視鏡の観察窓が配置されている挿入部先端を上記内視鏡保管時に覆って保護するために、上記挿入部先端に着脱自在に取り付けられるようモールディング成型により形成された内視鏡の先端保護キャップであって、 The insertion portion distal end observation window of the endoscope is disposed for covering and protecting at the time of storage the endoscope, the distal end of an endoscope which is formed by molding the molding to be removably attached to the leading end of the insertion portion a protective cap,
    上記先端保護キャップで覆われた状態の上記内視鏡の挿入部先端の観察窓を通して得られる画像が内視鏡観察画像の所定の状態を点検するのに適するように、原材料の組成が調合されていることを特徴とする内視鏡の先端保護キャップ。 As suitable for inspecting a predetermined state image endoscope observation image obtained through the observation window of the insertion tip of the endoscope in the state covered with the distal protection cap, the composition of the raw materials is formulated distal protection cap of the endoscope, characterized by that.
  4. 上記原材料が、弾力性のあるゴム材又はプラスチック材と蛍光材とを含んでいる請求項4記載の内視鏡の先端保護キャップ。 The raw materials, distal protection cap of the endoscope according to claim 4, wherein comprising a rubber or plastic material and the fluorescent material is resilient.
  5. 上記先端保護キャップが上記内視鏡の挿入部先端に取り付けられた時に、上記内視鏡の観察窓がそれに対向する上記先端保護キャップの面に当接する請求項1ないし4のいずれかの項に記載の内視鏡の先端保護キャップ。 When the distal protection cap is attached to the leading end of the insertion portion of the endoscope, to any of claims 1 to 4 in contact with the surface of the distal protection cap observation window of the endoscope is opposed to it distal protection cap of the endoscope according.
  6. 上記先端保護キャップが上記内視鏡の挿入部先端に取り付けられて上記内視鏡の観察窓がそれに対向する上記先端保護キャップの面に当接した状態の時に、上記内視鏡の挿入部先端が上記先端保護キャップから抜け出すのを防止するための抜け止め部材が設けられている請求項5記載の内視鏡の先端保護キャップ。 In a state where the distal protection cap is in contact with the surface of the distal protection cap observation window mounted the endoscope is opposed to it the leading end of the insertion portion of the endoscope, the insertion portion distal end of the endoscope There distal protection cap of the endoscope according to claim 5, wherein the retaining member for preventing the slipping out from the distal protection cap is provided.
  7. 上記内視鏡の挿入部先端を上記先端保護キャップ内から引き戻して上記内視鏡の観察窓とそれに対向する上記先端保護キャップの面との間に間隔があいた状態にした時に、上記先端保護キャップを上記内視鏡の挿入部先端に弾力的に係止する係止部材が設けられている請求項6記載の内視鏡の先端保護キャップ。 The leading end of the insertion portion of the endoscope when the state space is empty between the surface of the tip protector cap facing thereto and the observation window of the endoscope is pulled back from the said tip protection cap, the distal protection cap the distal protection cap of the endoscope according to claim 6, wherein the locking member for resiliently engaging the leading end of the insertion portion of the endoscope is provided.
  8. 上記抜け止め部材が上記係止部材を兼ねている請求項7記載の内視鏡の先端保護キャップ。 The retaining member distal protection cap of the endoscope according to claim 7, characterized in that also serves as the locking member.
  9. 上記先端保護キャップが上記内視鏡の挿入部先端に取り付けられた時に、上記内視鏡の観察窓がそれに対向する上記先端保護キャップの面に当接しないように上記観察窓とそれに対向する上記先端保護キャップの面との間の間隔を確保するためのストッパが設けられている請求項1ないし4のいずれかの項に記載の内視鏡の先端保護キャップ。 When the distal protection cap is attached to the leading end of the insertion portion of the endoscope, the observation window of the endoscope is the observation window and the opposed thereto so as not to contact the surface of the tip protector cap facing thereto distal protection cap of the endoscope according to the claims 1 provided a stopper for securing the spacing to one of the sections 4 between the surface of the distal protection cap.
  10. 上記先端保護キャップが上記内視鏡の挿入部先端に取り付けられて上記内視鏡の観察窓と上記先端保護キャップの面との間の間隔が上記ストッパにより確保された状態の時に、上記内視鏡の挿入部先端付近に弾力的に係合して上記内視鏡の挿入部先端が上記先端保護キャップから抜け出すのを防止するための抜け止め部材が併設されている請求項9記載の内視鏡の先端保護キャップ。 When the distal protection cap in a state where the interval is ensured by the stopper between the observation window and the surface of the tip protector cap mounted on the leading end of the insertion portion of the endoscope the endoscope, the endoscope near the leading end of the insertion portion of the lens engages resiliently engaging endoscopic of claim 9, wherein the leading end of the insertion portion of the endoscope retaining member for preventing the slipping out from the distal protection cap is juxtaposed tip protection cap of the mirror.
  11. 上記ストッパと上記抜け止め部材とが各々、上記内視鏡の挿入部先端の近傍であってその後方の外周に形成された凹凸部に弾力的に係合するように、上記先端保護キャップの内面に突設されている請求項10記載の内視鏡の先端保護キャップ。 The stopper and the said stopper member are each such that resiliently engages the uneven portion formed on an outer periphery of the rear in the vicinity of the leading end of the insertion portion of the endoscope, the inner surface of the distal protection cap distal protection cap of the endoscope according to claim 10, characterized in that projecting from the.
  12. 上記内視鏡の先端保護キャップが、上記挿入部先端に被さった状態に係合する内筒とその内筒に対して径方向に空間をあけて上記内筒を囲む状態に配置された外筒とを一体に連結した構成である請求項1ないし11のいずれかの項に記載の内視鏡の先端保護キャップ。 Distal protection cap of the endoscope, an outer cylinder arranged to surround the inner cylinder with a space in the radial direction with respect to the cylinder and its inner cylinder inner engaging a state of overlaying the said insertion tip distal protection cap of the endoscope according to any one of claims 1 to 11 is a configuration linked together and.
  13. 上記内筒と上記外筒とが、上記内筒に対する上記挿入部先端の挿脱口側において連結されている請求項12記載の内視鏡の先端保護キャップ。 The inner tube and the outer tube above the tip protective cap of the endoscope according to claim 12, characterized in that coupled the insertion slot side of the leading end of the insertion portion relative to the inner cylinder.
  14. 上記内筒が、上記挿入部先端の挿脱口側へ次第に内径が大きくなるテーパ筒状に形成されている請求項12又は13記載の内視鏡の先端保護キャップ。 The inner barrel, the leading end of the insertion portion distal protection cap of the endoscope increasingly claims are formed in a tapered tube whose inner diameter increases 12 or 13, wherein the insertion slot side.
  15. 上記外筒が、上記内筒との連結部側へ次第に径が小さくなるテーパ筒状に形成されている請求項12、13又は14記載の内視鏡の先端保護キャップ。 The outer tube is, distal protection cap of the endoscope according to claim 12, 13 or 14, wherein progressively the diameter to the connecting portion side is formed smaller becomes tapered tube with the inner tube.
  16. 上記内筒の先端部分が上記外筒の内側に潜った位置に配置されている請求項12、13、14又は15記載の内視鏡の先端保護キャップ。 Distal protection cap of the endoscope according to claim 12, 13, 14 or 15, wherein the distal end portion of the inner tube is disposed at a position dived inside of the outer tube.
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EP2526852A1 (en) * 2010-10-29 2012-11-28 Olympus Medical Systems Corp. Optical measurement device, optical measurement system, and module for correction
CN105358043A (en) * 2013-05-07 2016-02-24 恩多巧爱思股份有限公司 White balance enclosure for use with a multi-viewing elements endoscope

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