JP3934354B2 - Endoscope bending instrument - Google Patents

Endoscope bending instrument Download PDF

Info

Publication number
JP3934354B2
JP3934354B2 JP2001056212A JP2001056212A JP3934354B2 JP 3934354 B2 JP3934354 B2 JP 3934354B2 JP 2001056212 A JP2001056212 A JP 2001056212A JP 2001056212 A JP2001056212 A JP 2001056212A JP 3934354 B2 JP3934354 B2 JP 3934354B2
Authority
JP
Japan
Prior art keywords
flexible tube
distal end
cutting groove
operation wire
cutting grooves
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 - Lifetime
Application number
JP2001056212A
Other languages
Japanese (ja)
Other versions
JP2002253492A (en
Inventor
輝雄 大内
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 filed Critical ペンタックス株式会社
Priority to JP2001056212A priority Critical patent/JP3934354B2/en
Priority to US10/081,854 priority patent/US6814728B2/en
Publication of JP2002253492A publication Critical patent/JP2002253492A/en
Priority to US10/958,394 priority patent/US7857749B2/en
Application granted granted Critical
Publication of JP3934354B2 publication Critical patent/JP3934354B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B2010/0216—Sampling brushes

Landscapes

  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)

Description

【０００１】
【発明の属する技術分野】
この発明は、体内粘膜表面から組織を採取するために内視鏡の処置具挿通チャンネルに挿脱される内視鏡用湾曲付処置具に関する。
【０００２】
【従来の技術】
体内粘膜表面から組織を採取するための内視鏡用処置具として、ブラシや鋭匙等のような組織採取部材を可撓性シースの先端に取り付けたものがある。
【０００３】
そして、組織採取を経内視鏡的に迅速かつ確実に行うことができるように、可撓性シースの先端近傍を手元側からの操作により屈曲自在にしたものがある（特開平５−１４２号）。
【０００４】
【発明が解決しようとする課題】
そのような従来の内視鏡用湾曲付処置具においては、例えば特開平５−１４２号公報に示されるように、複数箇所で支軸を中心に折れ曲がるリンク状部材を可撓性シースの先端に配置するという精密な構成をとっていて、操作ワイヤの進退動作によりリンク状部材を屈曲／伸展させるようになっている。
【０００５】
そのため、使用後の完全な洗浄が難しくて作動不良等も起こし易いのに加えて、非常にコスト高なものになるため、使い捨てし難くて不安定な状態で再使用されてしまう場合が少なくない。
【０００６】
そこで本発明は、シンプルな構造によって、使用後の洗浄が容易で故障が少なく、低コストで使い捨てにしても十分な経済性を有する内視鏡用湾曲付処置具を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記の目的を達成するため、本発明の内視鏡用湾曲付処置具は、組織採取部材が先端に取り付けられた可撓性チューブの先端近傍部分に、可撓性チューブを径方向に横断する一対の切削溝を間隔をあけて形成すると共に、可撓性チューブ内に軸線方向に進退自在に挿通配置された操作ワイヤを、一対の切削溝において可撓性チューブに出し入れして一対の切削溝の間において可撓性チューブの外面に沿わせ、操作ワイヤの先端を切削溝より先側において可撓性チューブに対して固定したものである。
【０００８】
なお、切削溝の断面形状が略Ｖ字状であると、各切削溝部分において可撓性チューブがスムーズに屈曲し易い。また、可撓性チューブの先端近傍部分に切削溝が複数対形成されていて、操作ワイヤが、各対の切削溝において可撓性チューブに出し入れされて各対の切削溝の間において可撓性チューブの外面に沿って配置されていてもよく、その場合に、複数対の切削溝が可撓性チューブの周方向に順に偏位して形成されていれば、可撓性チューブの先端部分を立体的に屈曲させることができる。
【０００９】
【発明の実施の形態】
図面を参照して本発明の実施例を説明する。
図１は、本発明を内視鏡用鋭匙に適用した第１の実施例の内視鏡用湾曲付処置具の先端部分を示している。
【００１０】
１は、図示されていない内視鏡の処置具挿通チャンネルに挿脱される可撓性チューブであり、その先端には、縁部に刃が形成されたスプーン状の組織採取部材である鋭匙２が連結固定されている。
【００１１】
可撓性チューブ１としては、四フッ化エチレン樹脂チューブ又はポリエチレン樹脂チューブ等を用いることができ、外径が１．５〜２．５ｍｍ程度で長さが１〜２ｍ程度のものが用いられる。
【００１２】
可撓性チューブ１の先端近傍部分には、可撓性チューブ１の軸線方向に対して略垂直向きの略Ｖ字状の断面形状の一対の切削溝３ａ，３ｂが、軸線方向に間隔をあけて形成されている。この実施例においては、一対の切削溝３ａ，３ｂはいずれも鋭匙２の組織採取面２ａの後方位置に形成されている。
【００１３】
可撓性チューブ１内には、例えばステンレス鋼製撚り線によって形成された操作ワイヤ４が、軸線方向に進退自在に全長にわたって挿通配置されていて、図１において右方の基端側（即ち、手元側）から任意に進退操作することができる。
【００１４】
操作ワイヤ４の先端４ａは、ロー付け等によって鋭匙２に固着されており、それによって、操作ワイヤ４の先端４ａが可撓性チューブ１の先端部分に対して固定された状態になっている。ただし、操作ワイヤ４の先端４ａを可撓性チューブ１の先端に直接固定しても差し支えない。
【００１５】
可撓性チューブ１は、各切削溝３ａ，３ｂを通って可撓性チューブ１に出し入れされていて、一対の切削溝３ａ，３ｂの間においてのみ、可撓性チューブ１の外面に沿う状態に配置されている。
【００１６】
したがって、操作ワイヤ４を手元側から牽引操作すると、図２に示されるように、可撓性チューブ１の先端部分が一対の切削溝３ａ，３ｂにおいて各々鋭匙２の組織採取面２ａ側に屈曲する。
【００１７】
そして、操作ワイヤ４を手元側から可撓性チューブ１内に押し込み操作すれば、可撓性チューブ１の先端部分が元の真っ直ぐな状態に戻り、その状態からさらに操作ワイヤ４を押し込めば、図３に示されるように、可撓性チューブ１の先端部分が一対の切削溝３ａ，３ｂにおいて各々鋭匙２の組織採取面２ａの裏側方向に屈曲する。
【００１８】
このようにして、上記実施例の内視鏡用湾曲付処置具は、リンク状部材等を用いることなく、可撓性チューブ１に一対の切削溝３ａ，３ｂを形成するだけの簡単な構成により可撓性チューブ１の先端部分を屈曲させることができる。
【００１９】
図４は、本発明の第２の実施例の内視鏡用湾曲付処置具の先端部分を示しており、第１の実施例と同様の切削溝３ａ，３ｂを複数対設け、操作ワイヤ４を各対の切削溝３ａ，３ｂにおいて可撓性チューブ１に出し入れして、各対の切削溝３ａ，３ｂの間において可撓性チューブ１の外面に沿って配置したものである。このように構成することによって、可撓性チューブ１の先端近傍部分を大きく滑らかに屈曲させることができる。
【００２０】
図５は、本発明の第３の実施例の内視鏡用湾曲付処置具の先端部を示しており、可撓性チューブ１の先端には、組織採取部材としてブラシ１２が取り付けられている。また、複数対の切削溝３ａ，３ｂが、可撓性チューブ１の周方向に順に位置をずらして形成されている。
【００２１】
したがって、操作ワイヤ４が手元側に牽引されると、図６に示されるように、可撓性チューブ１の先端部分付近が、可撓性チューブ１の所定の方向に対して捩じれた方向に立体的に屈曲するので、例えば深部気管支等のように立体的に曲がった形状の管腔臓器内にスムーズに挿入することができる。なお、図６においては操作ワイヤ４の図示は省略されている。
【００２２】
【発明の効果】
本発明によれば、リンク状部材等を用いることなく、操作ワイヤを通した可撓性チューブの先端近傍部分に切削溝を形成しただけの極めて簡単な構成により、可撓性チューブの先端部分を任意に屈曲させることができるので、使用後の洗浄が容易で故障が少なく、しかも低コストで製造することができるので使い捨てにしても十分な経済性を有することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施例の内視鏡用湾曲付処置具の先端部分の側面断面図である。
【図２】本発明の第１の実施例の内視鏡用湾曲付処置具の先端部分が屈曲した状態の側面断面図である。
【図３】本発明の第１の実施例の内視鏡用湾曲付処置具の先端部分が逆側に屈曲した状態の側面断面図である。
【図４】本発明の第２の実施例の内視鏡用湾曲付処置具の先端部分の側面断面図である。
【図５】本発明の第３の実施例の内視鏡用湾曲付処置具の先端部分の平面図である。
【図６】本発明の第３の実施例の内視鏡用湾曲付処置具の先端部分が屈曲した状態の斜視図である。
【符号の説明】
１ 可撓性チューブ
２ 鋭匙（組織採取部材）
３ａ，３ｂ 切削溝
４ 操作ワイヤ
１２ ブラシ（組織採取部材）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscopic bending treatment tool that is inserted into and removed from a treatment tool insertion channel of an endoscope in order to collect tissue from a body mucosal surface.
[0002]
[Prior art]
2. Description of the Related Art Endoscopic treatment tools for collecting tissue from the body mucosal surface include those having a tissue collection member such as a brush or sharp knife attached to the distal end of a flexible sheath.
[0003]
In addition, there is one in which the vicinity of the distal end of the flexible sheath can be bent by an operation from the hand side so that the tissue can be collected quickly and surely by a transendoscope (Japanese Patent Laid-Open No. 5-142). ).
[0004]
[Problems to be solved by the invention]
In such a conventional endoscopic bending instrument, for example, as disclosed in Japanese Patent Laid-Open No. 5-142, a link-like member that is bent around a support shaft at a plurality of locations is provided at the distal end of the flexible sheath. It has a precise configuration of arrangement, and the link-like member is bent / extended by the advance / retreat operation of the operation wire.
[0005]
Therefore, in addition to being difficult to clean completely after use and causing malfunctions, it is very expensive, so it is not easy to dispose of it and it is often reused in an unstable state. .
[0006]
Accordingly, an object of the present invention is to provide an endoscopic bending treatment tool that has a simple structure, is easy to clean after use, has few failures, and is economical enough to be disposable at low cost. .
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the bending instrument for an endoscope of the present invention traverses the flexible tube in the radial direction in the vicinity of the distal end of the flexible tube to which the tissue collection member is attached. A pair of cutting grooves are formed at intervals, and an operation wire that is inserted and disposed in the flexible tube so as to be movable back and forth in the axial direction is inserted into and removed from the flexible tube in the pair of cutting grooves. The tip of the operation wire is fixed to the flexible tube at the front side of the cutting groove along the outer surface of the flexible tube.
[0008]
In addition, when the cross-sectional shape of the cutting groove is substantially V-shaped, the flexible tube is easily bent smoothly in each cutting groove portion. In addition, a plurality of pairs of cutting grooves are formed in the vicinity of the distal end of the flexible tube, and the operation wires are inserted into and out of the flexible tube in each pair of cutting grooves and are flexible between each pair of cutting grooves. It may be arranged along the outer surface of the tube, and in that case, if a plurality of pairs of cutting grooves are formed in the circumferential direction of the flexible tube, the tip portion of the flexible tube It can be bent three-dimensionally.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a distal end portion of a bending instrument for an endoscope according to a first embodiment in which the present invention is applied to a sharp knife for an endoscope.
[0010]
Reference numeral 1 denotes a flexible tube that is inserted into and removed from a treatment instrument insertion channel of an endoscope (not shown), and a sharp blade that is a spoon-like tissue collection member having a blade formed at the edge at the tip thereof. 2 is connected and fixed.
[0011]
As the flexible tube 1, a tetrafluoroethylene resin tube or a polyethylene resin tube can be used, and one having an outer diameter of about 1.5 to 2.5 mm and a length of about 1 to 2 m is used.
[0012]
In the vicinity of the distal end of the flexible tube 1, a pair of cutting grooves 3 a and 3 b having a substantially V-shaped cross-section substantially perpendicular to the axial direction of the flexible tube 1 are spaced apart in the axial direction. Is formed. In this embodiment, the pair of cutting grooves 3 a and 3 b are both formed at the rear position of the tissue collection surface 2 a of the sharp knife 2.
[0013]
In the flexible tube 1, an operation wire 4 formed of, for example, a stainless steel stranded wire is inserted and disposed over the entire length so as to be movable back and forth in the axial direction, and in FIG. Advancing and retreating can be performed arbitrarily from the hand side).
[0014]
The distal end 4a of the operation wire 4 is fixed to the sharpened rod 2 by brazing or the like, so that the distal end 4a of the operation wire 4 is fixed to the distal end portion of the flexible tube 1. . However, the distal end 4 a of the operation wire 4 may be directly fixed to the distal end of the flexible tube 1.
[0015]
The flexible tube 1 is put in and out of the flexible tube 1 through the respective cutting grooves 3a and 3b, and is in a state along the outer surface of the flexible tube 1 only between the pair of cutting grooves 3a and 3b. Has been placed.
[0016]
Accordingly, when the operation wire 4 is pulled from the proximal side, the distal end portion of the flexible tube 1 is bent toward the tissue collection surface 2a side of the sharpened knife 2 in each of the pair of cutting grooves 3a and 3b as shown in FIG. To do.
[0017]
Then, if the operation wire 4 is pushed into the flexible tube 1 from the hand side, the distal end portion of the flexible tube 1 returns to the original straight state. 3, the distal end portion of the flexible tube 1 bends toward the back side of the tissue collection surface 2a of the sharp punch 2 in the pair of cutting grooves 3a and 3b.
[0018]
In this way, the bending instrument for an endoscope of the above-described embodiment has a simple configuration in which the pair of cutting grooves 3a and 3b are formed in the flexible tube 1 without using a link-like member or the like. The distal end portion of the flexible tube 1 can be bent.
[0019]
FIG. 4 shows the distal end portion of the bending instrument for an endoscope according to the second embodiment of the present invention, and a plurality of pairs of cutting grooves 3a and 3b similar to those in the first embodiment are provided, and the operation wire 4 is provided. Are inserted into and out of the flexible tube 1 in each pair of cutting grooves 3a and 3b, and are disposed along the outer surface of the flexible tube 1 between each pair of cutting grooves 3a and 3b. By comprising in this way, the part near the front-end | tip of the flexible tube 1 can be bent largely smoothly.
[0020]
FIG. 5 shows a distal end portion of a bending instrument for an endoscope according to a third embodiment of the present invention, and a brush 12 is attached to the distal end of the flexible tube 1 as a tissue collection member. . Further, a plurality of pairs of cutting grooves 3 a and 3 b are formed by sequentially shifting the positions in the circumferential direction of the flexible tube 1.
[0021]
Therefore, when the operation wire 4 is pulled toward the hand side, the vicinity of the distal end portion of the flexible tube 1 is three-dimensionally twisted with respect to a predetermined direction of the flexible tube 1 as shown in FIG. Therefore, it can be smoothly inserted into a hollow organ having a three-dimensionally bent shape such as a deep bronchus. In addition, illustration of the operation wire 4 is abbreviate | omitted in FIG.
[0022]
【The invention's effect】
According to the present invention, the distal end portion of the flexible tube is formed by an extremely simple configuration in which a cutting groove is formed in the vicinity of the distal end of the flexible tube through which the operation wire is passed without using a link-like member or the like. Since it can be bent arbitrarily, cleaning after use is easy, there are few failures, and it can be manufactured at low cost.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a distal end portion of a bending instrument for an endoscope according to a first embodiment of the present invention.
FIG. 2 is a side cross-sectional view showing a state where a distal end portion of the bending instrument for an endoscope according to the first embodiment of the present invention is bent.
FIG. 3 is a side cross-sectional view showing a state where the distal end portion of the bending instrument for an endoscope according to the first embodiment of the present invention is bent to the opposite side.
FIG. 4 is a side sectional view of a distal end portion of a bending instrument for an endoscope according to a second embodiment of the present invention.
FIG. 5 is a plan view of a distal end portion of a bending instrument for an endoscope according to a third embodiment of the present invention.
FIG. 6 is a perspective view showing a state in which a distal end portion of a bending instrument for an endoscope according to a third embodiment of the present invention is bent.
[Explanation of symbols]
1 Flexible tube 2 Sharp scissors (tissue collection member)
3a, 3b Cutting groove 4 Operation wire 12 Brush (tissue collecting member)

Claims (2)

組織採取部材が先端に取り付けられた可撓性チューブの先端近傍部分に、上記可撓性チューブを径方向に横断する複数対の切削溝を、各切削溝間に間隔をあけて個々の切削溝が上記可撓性チューブの周方向に順に偏位した状態に形成すると共に、上記可撓性チューブ内に軸線方向に進退自在に挿通配置された操作ワイヤを、上記複数対の各切削溝の間において上記可撓性チューブに出し入れして上記複数対の切削溝の間において上記可撓性チューブの外面に沿わせ、上記操作ワイヤの先端を上記切削溝より先側において上記可撓性チューブに対して固定したことを特徴とする内視鏡用湾曲付処置具。Near the tip portion of the flexible tube tissue sampling member is attached to the tip, the cutting groove pairs traversing the flexible tube in the radial direction, each of the cutting grooves at intervals between each cutting groove while BUSY is circumferential as well as formed is displaced in the forward direction, the operation wire which is movably inserted and arranged axially within the flexible tube, each cutting groove of the plurality of pairs of the flexible tube In the flexible tube, and along the outer surface of the flexible tube between the plurality of pairs of cutting grooves, the tip of the operation wire is located on the front side of the cutting groove with respect to the flexible tube. An endoscopic bending treatment tool characterized by being fixed by using an endoscope. 上記切削溝の断面形状が略Ｖ字状である請求項１記載の内視鏡用湾曲付処置具。The endoscopic bending treatment tool according to claim 1, wherein a cross-sectional shape of the cutting groove is substantially V-shaped.
JP2001056212A 2001-02-26 2001-03-01 Endoscope bending instrument Expired - Lifetime JP3934354B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001056212A JP3934354B2 (en) 2001-03-01 2001-03-01 Endoscope bending instrument
US10/081,854 US6814728B2 (en) 2001-02-26 2002-02-25 Endoscope having an operation wire
US10/958,394 US7857749B2 (en) 2001-02-26 2004-10-06 Treatment tools for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001056212A JP3934354B2 (en) 2001-03-01 2001-03-01 Endoscope bending instrument

Publications (2)

Publication Number Publication Date
JP2002253492A JP2002253492A (en) 2002-09-10
JP3934354B2 true JP3934354B2 (en) 2007-06-20

Family

ID=18916269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001056212A Expired - Lifetime JP3934354B2 (en) 2001-02-26 2001-03-01 Endoscope bending instrument

Country Status (1)

Country Link
JP (1) JP3934354B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6814728B2 (en) 2001-02-26 2004-11-09 Pentax Corporation Endoscope having an operation wire
JP4725997B2 (en) * 2005-09-05 2011-07-13 有限会社リバー精工 Endoscopic treatment tool
US8801739B2 (en) * 2009-04-17 2014-08-12 Spine View, Inc. Devices and methods for arched roof cutters

Also Published As

Publication number Publication date
JP2002253492A (en) 2002-09-10

Similar Documents

Publication Publication Date Title
US6093195A (en) Endoscopic treatment tool
JP4121615B2 (en) Endoscope
JP5981927B2 (en) Improved cytology brush instrument
US8469993B2 (en) Endoscopic instruments
US5722423A (en) Tissue removing device
JP3758962B2 (en) Endoscope basket-type collection tool
JP4745673B2 (en) Endoscopic high-frequency incision tool
JP3718372B2 (en) Endoscopic treatment tool
JP2001112763A (en) Implement for endoscope
JP3934354B2 (en) Endoscope bending instrument
JP3406703B2 (en) Endoscope treatment tool
JP6917054B2 (en) A guide wire guiding means and a treatment tool for a basket-type endoscope device provided with the guide wire guiding means.
JP3629111B2 (en) Endoscopic wire loop treatment tool
JP4786807B2 (en) Endoscopic tube treatment device
JP3911158B2 (en) Endoscopy cleaning brush
JP2005021195A (en) Basket type clamping forceps for medical use
JP4338485B2 (en) Endoscopy forceps
JP7296178B2 (en) medical device
JP4874934B2 (en) Biological tissue collection tool
JP5235709B2 (en) Endoscopic high-frequency treatment instrument
JP4321832B2 (en) Endoscope sharp
JP4297468B2 (en) Endoscopic basket-type collection tool
JP6788689B2 (en) Basket type treatment tool
JPH0741445Y2 (en) Endoscope brush
JP2001269345A (en) Cell sampling tool for endoscope

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041111

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060608

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060629

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060727

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070308

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070315

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 3934354

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100330

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110330

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120330

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130330

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140330

Year of fee payment: 7

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term