Movatterモバイル変換


[0]ホーム

URL:


JP4017736B2 - Endoscope insertion part - Google Patents

Endoscope insertion part
Download PDF

Info

Publication number
JP4017736B2
JP4017736B2JP07296598AJP7296598AJP4017736B2JP 4017736 B2JP4017736 B2JP 4017736B2JP 07296598 AJP07296598 AJP 07296598AJP 7296598 AJP7296598 AJP 7296598AJP 4017736 B2JP4017736 B2JP 4017736B2
Authority
JP
Japan
Prior art keywords
flexible tube
superelastic alloy
pipe
coil pipe
wound 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 - Fee Related
Application number
JP07296598A
Other languages
Japanese (ja)
Other versions
JPH11267091A (en
Inventor
健一 大原
浩 佐野
一郎 二ノ宮
Original Assignee
ペンタックス株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ペンタックス株式会社filedCriticalペンタックス株式会社
Priority to JP07296598ApriorityCriticalpatent/JP4017736B2/en
Publication of JPH11267091ApublicationCriticalpatent/JPH11267091A/en
Application grantedgrantedCritical
Publication of JP4017736B2publicationCriticalpatent/JP4017736B2/en
Anticipated expirationlegal-statusCritical
Expired - Fee Relatedlegal-statusCriticalCurrent

Links

Images

Classifications

Landscapes

Description

Translated fromJapanese

【0001】
【発明の属する技術分野】
この発明は、体腔内等に挿入される内視鏡の挿入部に関する。
【0002】
【従来の技術】
いわゆる軟性内視鏡の挿入部は、光学繊維束等の内蔵物を外装可撓管内に挿通配置して構成されているが、その先端寄りの部分は体腔内臓器の形状に沿って比較的自由に曲がるように柔軟に形成し、手元側の部分は操作者が行う微妙な押し引き動作等が先端側に伝達されるように硬めに形成する必要がある。
【0003】
そこで従来は、外装可撓管の最外層の合成樹脂外皮の厚さや硬度等を位置によって変化させることにより、外装可撓管自体の可撓性を途中で変化させていた。
【0004】
【発明が解決しようとする課題】
外装可撓管の最外層の合成樹脂外皮は、一般に押し出し成形によって形成されるが、その厚さや硬度をいちいち途中で変化させる製法では、外装可撓管の製造に著しい時間とコストがかかってしまう。また、そのように途中で成形条件を変化させると、成形条件の変動に起因する製品毎の可撓性のバラツキが発生する場合が少なくない。
【0005】
そこで本発明は、可撓管の外皮の厚さや硬度を変化させることなく、途中で可撓性を容易かつ滑らかに変化させた内視鏡の挿入部を提供することを目的とする。
【0006】
【課題を解決するための手段】
上記の目的を達成するため、本発明の内視鏡の挿入部は、挿入部を外装する可撓管の先端に遠隔操作によって屈曲する湾曲部が連結されて、上記湾曲部を屈曲させる操作ワイヤを挿通して案内するために上記可撓管内に全長にわたって挿通配置されたワイヤガイドの先端部分が上記可撓管の先端部分に固定された内視鏡の挿入部において、上記ワイヤガイドを、密着巻きコイルパイプと超弾性合金製パイプとを直列に連結して形成して、上記密着巻きコイルパイプ部分を上記可撓管の先端寄りの範囲に配置し、上記超弾性合金製パイプ部分を上記可撓管の基端寄りの範囲に配置したことを特徴とする。
【0007】
なお、上記密着巻きコイルパイプと上記超弾性合金製パイプとの連結部において、上記密着巻きコイルパイプの外周に上記超弾性合金製パイプが被嵌接合されていてもよく、その場合、上記密着巻きコイルパイプの端部の外周が研削されていて、そこに上記超弾性合金製パイプが被嵌されていてもよい。
【0008】
また、上記密着巻きコイルパイプと上記超弾性合金製パイプとの連結部において、上記密着巻きコイルパイプの端面と上記超弾性合金製パイプの端面とが付き当てられていて、その双方の外面にまたがって被嵌された接続パイプに双方が各々固着されていてもよく、その場合、上記超弾性合金製パイプの上記連結部側の端部の内面が口元側へ漸次広がるテーパ状に形成されていてもよい。
【0009】
また、上記ワイヤガイドが上記可撓管内に複数並列に挿通配置されていて、上記密着巻きコイルパイプと上記超弾性合金製パイプとの連結部が、ワイヤガイド毎に長手方向に位置をずらして配置されていてもよい。
【0010】
【発明の実施の形態】
図面を参照して本発明の実施の形態を説明する。
図2は内視鏡を示しており、体腔内等に挿入される挿入部は、可撓管2によって外装された軟性部分の先端に、操作部1からの遠隔操作によって屈曲する湾曲部3が連結され、その湾曲部3の先端に、対物光学系等を内蔵した先端部本体4が連結されて構成されている。
【0011】
可撓管2は、例えば金属帯材製の螺旋管に網状管を被覆し、その外面にポリウレタン樹脂等の外皮を被覆して構成されている。可撓管2を被覆する外皮部分はどのような構造であっても差し支えないが、途中で外皮の厚さや硬度を異ならせて可撓管2自体の可撓性を途中で変化させる必要はない。
【0012】
可撓管2及び湾曲部3内には、処置具挿通チャンネル、光学繊維束及び各種チューブ類などのような、先端が先端部本体4に連結された可撓性を有する内蔵物が全長にわたって挿通配置されている。
【0013】
先端部本体4の表面には、対物光学系に観察像を導入する観察窓5、観察視野に向けて照明光を射出する照明窓6、処置具挿通チャンネル出口7a、及び図示が省略されている送気送水ノズル等が配置されている。
【0014】
可撓管2の基端に連結された操作部1には、湾曲部3を屈曲操作するための湾曲操作ノブ8a,8bが配置されており、上下方向用湾曲操作ノブ8aで上下方向のいずれかの操作ワイヤを牽引操作し、左右方向用湾曲操作ノブ8bで左右方向のいずれかの操作ワイヤを牽引操作することにより、湾曲部3を任意の方向に屈曲させることができる。
【0015】
操作部1には、その他にも、送気送水操作ボタン11、吸引操作ボタン12及び処置具挿入口7b等が配置されている。14は、図示されていない光源装置に接続されるライトガイドケーブルである。
【0016】
図1は、挿入部の可撓管2部分を示している。可撓管2は外径が5〜15mm程度、長さが50〜150cm程度であるが、判り易くするために、実際より太く短く図示されている。
【0017】
可撓管2の基端部分には、操作部1に連結するための基端連結口金21が取り付けられ、可撓管2の先端部分には、湾曲部3を連結するための先端連結筒22が取り付けられている。
【0018】
23は、湾曲部3を遠隔操作するための湾曲操作ワイヤであり、その先端は湾曲部3の先端部分に連結され、基端は、湾曲操作ノブ8a,8bを回転操作することにより操作部1内に配置された湾曲操作機構によって牽引される。
【0019】
湾曲操作ワイヤ23を軸線方向に進退自在に案内するワイヤガイド24は、先側の密着巻きコイルパイプ24aと基側の超弾性合金製パイプ24bとを直列に連結して形成されている。
【0020】
密着巻きコイルパイプ24aは、ステンレス鋼線を一定の径で密着巻きして形成されており、非常に柔軟である。一方、超弾性金属は、例えばTi−Ni(チタン−ニッケル)系のものであり、金属としては弾性限界が非常に大きい。
【0021】
その結果、超弾性合金製パイプ24bは可撓管2が曲げられる程度の曲率半径で屈曲されても塑性変形せず、元の真っ直ぐな状態に戻ろうとする弾撥性を有しており、その弾撥性は密着巻きコイルパイプ24aより大きい。
【0022】
ワイヤガイド24の密着巻きコイルパイプ24aの先端部分は、III−III断面が図3に示されるように、先端連結筒22の内周面に90°間隔にスポット溶接又は銀ロー付け等によって固着されており、図1には、4組ある湾曲操作ワイヤ23とワイヤガイド24のうちの2組が示されている。
【0023】
ワイヤガイド24の超弾性合金製パイプ24bの基端部分は、操作部1内の湾曲操作機構のフレームに固定されている。ワイヤガイド24の両端部以外の部分は、自由な状態で可撓管2内に挿通配置されている。
【0024】
図4は、ワイヤガイド24の密着巻きコイルパイプ24aと超弾性合金製パイプ24bとの連結部を示しており、密着巻きコイルパイプ24aの基端部分の外周面を研削して細くし、そこに超弾性合金製パイプ24bの内面を被嵌、接合してある。
【0028】
このような構成により、ワイヤガイド24が超弾性合金製パイプ24bで構成された可撓管2の基端寄りの部分では、可撓管2が曲げられる際に超弾性合金製パイプ24bが抵抗として作用して可撓性が抑制され、可撓管2の押し引き動作等が先端側に伝達され易い。
【0029】
一方、ワイヤガイド24が密着巻きコイルパイプ24aで構成された可撓管2の先端寄りの部分は、可撓管2の曲げ動作に対する抵抗が小さいので、可撓性が大きく(即ち、柔軟性に富み)、体腔内の臓器形状に沿ってスムーズに変形する。
【0030】
そして、構成としては、密着巻きコイルパイプ24aと超弾性合金製パイプ24bとを直列に連結してワイヤガイド24を形成しただけなので、特別なスペースを全く必要としない。
【0031】
また、図1に示されるように、各ワイヤガイド24の密着巻きコイルパイプ24aと超弾性合金製パイプ24bとの連結部を長手方向にずらして配置すれば、その範囲において可撓管2の可撓性を徐々に滑らかに変化させることができる。
【0032】
【発明の効果】
本発明によれば、湾曲操作ワイヤを挿通案内するワイヤガイドを、密着巻きコイルパイプと超弾性合金製パイプとを直列に連結して形成し、密着巻きコイルパイプ部分を可撓管の先端寄りの範囲に配置して、超弾性合金製パイプ部分を可撓管の基端寄りの範囲に配置したことにより、可撓管の外皮の厚さや硬度を変化させることなく、可撓管で外装された部分の可撓性を途中で容易に製品毎のバラツキなく変化させることができ、しかも、特別なスペースを全く必要としない。
【図面の簡単な説明】
【図1】本発明の実施の形態の可撓管部分の管軸を含む面における断面図である。
【図2】本発明の実施の形態の内視鏡の全体構成を示す外観略示図である。
【図3】図1におけるIII−III断面図である。
【図4】本発明の実施の形態のワイヤガイドの連結部の拡大断面図である。
【符号の説明】
2 可撓管
3 湾曲部
23 湾曲操作ワイヤ
24 ワイヤガイド
24a 密着巻きコイルパイプ
24b 超弾性合金製パイプ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insertion portion of an endoscope that is inserted into a body cavity or the like.
[0002]
[Prior art]
The insertion part of the so-called flexible endoscope is constructed by inserting and placing a built-in object such as an optical fiber bundle into the exterior flexible tube, but the portion near the tip is relatively free along the shape of the organ in the body cavity. It is necessary to form it flexibly so that it bends, and to make the portion on the hand side stiff so that a delicate push-pull operation performed by the operator is transmitted to the tip side.
[0003]
Therefore, conventionally, the flexibility of the exterior flexible tube itself has been changed in the middle by changing the thickness, hardness, and the like of the outermost synthetic resin skin of the exterior flexible tube depending on the position.
[0004]
[Problems to be solved by the invention]
The outermost synthetic resin outer sheath of the outer flexible tube is generally formed by extrusion molding. However, in the manufacturing method in which the thickness and hardness of the outer flexible tube are changed halfway, it takes considerable time and cost to manufacture the outer flexible tube. . In addition, when the molding conditions are changed in the middle, there are many cases where variations in flexibility occur between products due to variations in the molding conditions.
[0005]
Accordingly, an object of the present invention is to provide an insertion portion of an endoscope in which the flexibility is easily and smoothly changed without changing the thickness or hardness of the outer skin of the flexible tube.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the insertion portion of the endoscope of the present invention has an operation wire that bends the bending portion by connecting a bending portion that is bent by remote operation to a distal end of a flexible tube that covers the insertion portion. In order to insert and guide the wire guide, the distal end portion of the wire guide inserted through the entire length of the flexible tube is fixed to the distal end portion of the flexible tube. A wound coil pipe and a superelastic alloy pipe are connected in series, and the tightly wound coil pipe portion is disposed in a range near the tip of the flexible tube, and the superelastic alloy pipe portion is placed in the deformable portion. It arrange | positions in the range near the base end of a flexible tube, It is characterized by the above-mentioned.
[0007]
The superelastic alloy pipe may be fitted and joined to the outer periphery of the tightly wound coil pipe at the connecting portion between the tightly wound coil pipe and the superelastic alloy pipe. The outer periphery of the end of the coil pipe may be ground, and the superelastic alloy pipe may be fitted there.
[0008]
Further, at the connecting portion between the tightly wound coil pipe and the superelastic alloy pipe, the end face of the tightly wound coil pipe and the end face of the superelastic alloy pipe are in contact with each other and straddle both outer surfaces. Both of them may be fixed to the connection pipe fitted in this case, and in that case, the inner surface of the end of the superelastic alloy pipe on the side of the connecting part is formed in a tapered shape that gradually spreads toward the mouth side. Also good.
[0009]
Further, a plurality of the wire guides are inserted and arranged in parallel in the flexible tube, and the connecting portion of the tightly wound coil pipe and the superelastic alloy pipe is arranged with the position shifted in the longitudinal direction for each wire guide. May be.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 2 shows an endoscope. An insertion portion to be inserted into a body cavity or the like has abending portion 3 which is bent by a remote operation from theoperation portion 1 at a distal end of a soft portion covered with aflexible tube 2. The distal end body 4 having a built-in objective optical system and the like is coupled to the distal end of thecurved portion 3.
[0011]
Theflexible tube 2 is configured, for example, by covering a spiral tube made of a metal strip with a mesh tube and covering the outer surface thereof with a skin such as polyurethane resin. The outer skin portion covering theflexible tube 2 may have any structure, but it is not necessary to change the flexibility or flexibility of theflexible tube 2 itself by changing the thickness or hardness of the outer skin. .
[0012]
Inside theflexible tube 2 and thebending portion 3, a flexible built-in object whose distal end is connected to the distal end body 4 such as a treatment instrument insertion channel, an optical fiber bundle, and various tubes is inserted over the entire length. Has been placed.
[0013]
Anobservation window 5 for introducing an observation image into the objective optical system, an illumination window 6 for emitting illumination light toward the observation field, a treatment instrumentinsertion channel outlet 7a, and illustration are omitted on the surface of the distal end main body 4. An air supply / water supply nozzle and the like are arranged.
[0014]
Theoperation section 1 connected to the base end of theflexible tube 2 is provided withbending operation knobs 8 a and 8 b for bending thebending section 3. Thebending portion 3 can be bent in any direction by pulling the operation wire and pulling the left or right operation wire with the left / rightbending operation knob 8b.
[0015]
In addition, an air / watersupply operation button 11, asuction operation button 12, a treatment instrument insertion port 7b, and the like are disposed in theoperation unit 1. Alight guide cable 14 is connected to a light source device (not shown).
[0016]
FIG. 1 shows aflexible tube 2 portion of the insertion portion. Theflexible tube 2 has an outer diameter of about 5 to 15 mm and a length of about 50 to 150 cm. However, for the sake of easy understanding, theflexible tube 2 is shown to be thicker and shorter than actual.
[0017]
A proximalend connection base 21 for connecting to theoperation unit 1 is attached to the proximal end portion of theflexible tube 2, and a distalend connection cylinder 22 for connecting thebending portion 3 to the distal end portion of theflexible tube 2. Is attached.
[0018]
Reference numeral 23 denotes a bending operation wire for remotely operating thebending portion 3, the distal end of which is connected to the distal end portion of thebending portion 3, and the proximal end of theoperation portion 1 by rotating thebending operation knobs 8 a and 8 b. It is pulled by the bending operation mechanism arranged inside.
[0019]
Awire guide 24 that guides thebending operation wire 23 so as to advance and retreat in the axial direction is formed by connecting a front-side tightly woundcoil pipe 24a and a base-sidesuperelastic alloy pipe 24b in series.
[0020]
The tightly woundcoil pipe 24a is formed by tightly winding a stainless steel wire with a constant diameter, and is very flexible. On the other hand, the superelastic metal is, for example, a Ti—Ni (titanium-nickel) type, and the elastic limit of the metal is very large.
[0021]
As a result, thesuperelastic alloy pipe 24b does not plastically deform even if it is bent with a radius of curvature that allows theflexible tube 2 to be bent, and has a resilience to return to the original straight state. The resilience is greater than the tightly woundcoil pipe 24a.
[0022]
The tip of the tightly woundcoil pipe 24a of thewire guide 24 is fixed to the inner peripheral surface of thetip connecting cylinder 22 by spot welding or silver brazing at 90 ° intervals as shown in FIG. FIG. 1 shows two sets of four sets of bendingoperation wires 23 and wire guides 24.
[0023]
The base end portion of thesuperelastic alloy pipe 24 b of thewire guide 24 is fixed to the frame of the bending operation mechanism in theoperation unit 1. Portions other than both ends of thewire guide 24 are inserted into theflexible tube 2 in a free state.
[0024]
FIG. 4 shows a connecting portion between the tightly woundcoil pipe 24a and thesuperelastic alloy pipe 24b of thewire guide 24. The outer peripheral surface of the proximal end portion of the tightly woundcoil pipe 24a is ground and thinned. The inner surface of thesuperelastic alloy pipe 24b is fitted and joined.
[0028]
With such a configuration, in the portion near the base end of theflexible tube 2 in which thewire guide 24 is composed of thesuperelastic alloy pipe 24b, thesuperelastic alloy pipe 24b becomes a resistance when theflexible tube 2 is bent. The flexibility is suppressed by acting, and the push-pull operation of theflexible tube 2 is easily transmitted to the distal end side.
[0029]
On the other hand, the portion near the tip of theflexible tube 2 in which thewire guide 24 is composed of the closely woundcoil pipe 24a has a low resistance to the bending operation of theflexible tube 2, and thus has a high flexibility (that is, flexibility). Rich) and deforms smoothly along the shape of the organ in the body cavity.
[0030]
As a configuration, the tightly woundcoil pipe 24a and thesuperelastic alloy pipe 24b are simply connected in series to form thewire guide 24, so that no special space is required.
[0031]
Further, as shown in FIG. 1, if the connecting portion between the closely woundcoil pipe 24a and thesuperelastic alloy pipe 24b of eachwire guide 24 is shifted in the longitudinal direction, theflexible tube 2 can be used within that range. Flexibility can be gradually and smoothly changed.
[0032]
【The invention's effect】
According to the present invention, the wire guide for inserting and guiding the bending operation wire is formed by connecting the closely wound coil pipe and the superelastic alloy pipe in series, and the closely wound coil pipe portion is located near the tip of the flexible tube. By placing the pipe part made of superelastic alloy in the range near the base end of the flexible tube, it was covered with the flexible tube without changing the thickness or hardness of the outer skin of the flexible tube. The flexibility of the part can be easily changed in the middle without any variation between products, and no special space is required.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a surface including a tube axis of a flexible tube portion according to an embodiment of the present invention.
FIG. 2 is a schematic external view showing the overall configuration of the endoscope according to the embodiment of the present invention.
3 is a sectional view taken along line III-III in FIG.
FIG. 4 is an enlarged cross-sectional view of a connecting portion of the wire guide according to the embodiment of the present invention.
[Explanation of symbols]
2Flexible tube 3Bending portion 23Bending operation wire 24Wire guide 24a Close-coiledcoil pipe 24b Superelastic alloy pipe

Claims (3)

Translated fromJapanese
挿入部を外装する可撓管の先端に遠隔操作によって屈曲する湾曲部が連結されて、上記湾曲部を屈曲させる操作ワイヤを挿通して案内するために上記可撓管内に全長にわたって挿通配置されたワイヤガイドの先端部分が上記可撓管の先端部分に固定された内視鏡の挿入部において、
上記ワイヤガイド、密着巻きコイルパイプと超弾性合金製パイプとを直列に連結して形成され、上記密着巻きコイルパイプ部分上記可撓管の先端寄りの範囲に配置されて、上記超弾性合金製パイプ部分上記可撓管の基端寄りの範囲に配置され、
上記密着巻きコイルパイプと上記超弾性合金製パイプとの連結部において、上記密着巻きコイルパイプの外周に上記超弾性合金製パイプが被嵌接合されていることを特徴とする内視鏡の挿入部。
A bending portion that is bent by remote operation is connected to the distal end of the flexible tube that sheathes the insertion portion, and is inserted through the entire length of the flexible tube to guide the operation wire that bends the bending portion. In the insertion portion of the endoscope in which the distal end portion of the wire guide is fixed to the distal end portion of the flexible tube,
The wire guideis formedby connecting a close-coiled coil pipe and a superelastic alloy pipe in series, and the close-coiled coil pipe portionis disposedin a range near the tip of the flexible tube, and the superelastic alloy A pipe partis arrangedin a range near the base end of the flexible tube,
An insertion portion of an endoscope, wherein thesuperelastic alloy pipe is fitted and joined to an outer periphery of the tightly wound coil pipe at a connection portion between the tightly wound coil pipe and the superelastic alloy pipe. .
上記密着巻きコイルパイプの端部の外周が研削されていて、そこに上記超弾性合金製パイプが被嵌されている請求項記載の内視鏡の挿入部。The outer periphery of an end portion of the tightly wound coil pipe is being ground, which the insertion portion of the endoscope according to claim1, wherein said superelastic alloy pipe is fitted on.上記ワイヤガイドが上記可撓管内に複数並列に挿通配置されていて、上記密着巻きコイルパイプと上記超弾性合金製パイプとの連結部が、ワイヤガイド毎に長手方向に位置をずらして配置されている請求項1記載の内視鏡の挿入部。A plurality of the wire guides are inserted and arranged in parallel in the flexible tube, and a connecting portion between the tightly wound coil pipe and the superelastic alloy pipe is arranged with a position shifted in the longitudinal direction for each wire guide. The endoscope insertion portion according to claim 1.
JP07296598A1998-03-231998-03-23 Endoscope insertion partExpired - Fee RelatedJP4017736B2 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP07296598AJP4017736B2 (en)1998-03-231998-03-23 Endoscope insertion part

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP07296598AJP4017736B2 (en)1998-03-231998-03-23 Endoscope insertion part

Publications (2)

Publication NumberPublication Date
JPH11267091A JPH11267091A (en)1999-10-05
JP4017736B2true JP4017736B2 (en)2007-12-05

Family

ID=13504612

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP07296598AExpired - Fee RelatedJP4017736B2 (en)1998-03-231998-03-23 Endoscope insertion part

Country Status (1)

CountryLink
JP (1)JP4017736B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP4492944B2 (en)*2004-06-252010-06-30富士フイルム株式会社 Endoscope
JP5179126B2 (en)*2007-09-142013-04-10Hoya株式会社 Endoscopic treatment tool

Also Published As

Publication numberPublication date
JPH11267091A (en)1999-10-05

Similar Documents

PublicationPublication DateTitle
JP2000296105A (en) Endoscope flexible tube
JP4490728B2 (en) Endoscope shaft
JP2573602B2 (en) Endoscope
JP4017734B2 (en) Endoscope insertion part
JP4017736B2 (en) Endoscope insertion part
JP3814053B2 (en) Endoscope bending device
JPH08160315A (en) Curved part of the endoscope
JP5810037B2 (en) Endoscope system
JP3992822B2 (en) Endoscope insertion part
JP4021041B2 (en) Endoscope insertion part
JP4017735B2 (en) Endoscope insertion part
JP4070868B2 (en) Endoscope insertion part
JPH1156763A (en)Endoscope
JP4895726B2 (en) Flexible endoscope insertion part
JP3499987B2 (en) Babyscope insertion tube flexible tube
JPH09140660A (en)Endoscope
JP4521203B2 (en) Endoscope curvature
JP3542835B2 (en) Endoscope
JPS632003Y2 (en)
JP2842616B2 (en) Endoscope
JP3845157B2 (en) Endoscope insertion part
JPH07408A (en) Flexible tube for treatment instruments for endoscopes
JPH0658456B2 (en) Endoscope
JP2001137180A (en)Endoscope
JPS61162929A (en)Endoscope

Legal Events

DateCodeTitleDescription
A621Written request for application examination

Free format text:JAPANESE INTERMEDIATE CODE: A621

Effective date:20050126

A977Report on retrieval

Free format text:JAPANESE INTERMEDIATE CODE: A971007

Effective date:20070713

A131Notification of reasons for refusal

Free format text:JAPANESE INTERMEDIATE CODE: A131

Effective date:20070719

A521Written amendment

Free format text:JAPANESE INTERMEDIATE CODE: A523

Effective date:20070822

TRDDDecision of grant or rejection written
A01Written decision to grant a patent or to grant a registration (utility model)

Free format text:JAPANESE INTERMEDIATE CODE: A01

Effective date:20070913

A61First payment of annual fees (during grant procedure)

Free format text:JAPANESE INTERMEDIATE CODE: A61

Effective date:20070919

R150Certificate of patent or registration of utility model

Free format text:JAPANESE INTERMEDIATE CODE: R150

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20100928

Year of fee payment:3

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20100928

Year of fee payment:3

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20110928

Year of fee payment:4

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20110928

Year of fee payment:4

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20120928

Year of fee payment:5

FPAYRenewal fee payment (event date is renewal date of database)

Free format text:PAYMENT UNTIL: 20130928

Year of fee payment:6

LAPSCancellation because of no payment of annual fees

[8]ページ先頭

©2009-2025 Movatter.jp