Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3922667B2 - Operating device for treatment tool for endoscope - Google Patents
[go: Go Back, main page]

JP3922667B2 - Operating device for treatment tool for endoscope - Google Patents

Operating device for treatment tool for endoscope Download PDF

Info

Publication number
JP3922667B2
JP3922667B2 JP12354298A JP12354298A JP3922667B2 JP 3922667 B2 JP3922667 B2 JP 3922667B2 JP 12354298 A JP12354298 A JP 12354298A JP 12354298 A JP12354298 A JP 12354298A JP 3922667 B2 JP3922667 B2 JP 3922667B2
Authority
JP
Japan
Prior art keywords
finger
guide
adjustment
guide cylinder
hanging body
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
JP12354298A
Other languages
Japanese (ja)
Other versions
JPH11313835A (en
Inventor
誠 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaijirushi Hamono Center KK
Original Assignee
Kaijirushi Hamono Center KK
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 Kaijirushi Hamono Center KK filed Critical Kaijirushi Hamono Center KK
Priority to JP12354298A priority Critical patent/JP3922667B2/en
Publication of JPH11313835A publication Critical patent/JPH11313835A/en
Application granted granted Critical
Publication of JP3922667B2 publication Critical patent/JP3922667B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Surgical Instruments (AREA)
  • Endoscopes (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、手術や医療検査等に用いられる内視鏡用処置具において、内視鏡を介して体内に挿入される連動部材の先端部に設けた処置部をこの連動部材を介して操作部により遠隔操作して作動させる操作装置に関するものである。
【0002】
【従来の技術】
従来、この種の内視鏡用処置具においては、操作部の案内筒に第一指掛け体及び第二指掛け体が支持され、この第二指掛け体がこの第一指掛け体に対し接近離間するように案内筒に沿って移動し得るとともにこの移動方向回りで回動し得るようになっている。この第二指掛け体の移動操作により、処置部が遠隔操作される。
【0003】
【発明が解決しようとする課題】
しかし、従来の内視鏡用処置具の操作装置においては、始動操作位置で第一指掛け体に対する第二指掛け体の間隔が一定であるため、操作する者の手のサイズによっては使いにくくなっていた。
【0004】
本発明は、内視鏡用処置具を使い易くして操作性を向上させることを目的にしている。
【0005】
【課題を解決するための手段】
後記各実施形態の図面(図1〜5に示す第一実施形態、図6〜8に示す第二実施形態、図9〜11に示す第三実施形態、図12〜14に示す第四実施形態)の符号を援用して本発明を説明する。
【0006】
請求項1の発明にかかる内視鏡用処置具は、内視鏡を介して体内に挿入される連動部材(1)の先端部に設けた処置部(2)をこの連動部材(1)を介して操作部(3)により遠隔操作して作動させるものであって、下記のように構成されている。
前記操作部(3)には、案内筒(12)とその案内筒(12)の先端部に設けた口体(13)とを有する操作部本体(9)に対しその案内筒(12)の基端部で支持した第一指掛け体(10)と、この操作部本体(9)の口体(13)とこの第一指掛け体(10)との間でこの操作部本体(9)の案内筒(12)の外周に挿嵌されて案内筒(12)に沿って移動し得るとともにこの案内筒(12)の外周に沿って回動し得る第二指掛け体(11)とを備えている。前記連動部材(1)には、前記処置部(2)と前記操作部本体(9)の口体(13)との間に連結した案内管(4)と、その案内管(4)内に挿通されてこの処置部(2)に連結された連動線材(5)とを備えている。前記操作部(3)に設けた始動操作位置調節機構(P)には、前記操作部本体(9)の案内筒(12)に挿嵌されてその案内筒(12)に沿って移動し得るとともに前記連動線材(5)の端部が前記操作部本体(9)の口体(13)から案内筒(12)に挿通されて連結される案内体(14)と、この案内体(14)が挿入される前記第二指掛け体(11)の案内孔(15)とを備えている。この案内体(14)に設けた雄ねじ(16)とこの案内孔(15)に設けた雌ねじ(22)とを互いに螺合して、案内筒(12)に対する第二指掛け体(11)の回動操作に伴いこの案内孔(15)の雌ねじ(22)がこの案内体(14)の雄ねじ(16)に対し案内筒(12)に沿って移動する。前記第二指掛け体(11)の移動により前記処置部(2)を遠隔操作可能にするとともに、前記第一指掛け体(10)に対する第二指掛け体(11)の移動操作可能範囲(MZ)にあって第二指掛け体(11)の始動操作位置(MB)を変更可能にしている。
【0009】
【発明の実施形態】
〔第一実施形態〕
まず、本発明の第一実施形態にかかる内視鏡用処置具を図1〜5を参照して説明する。
【0010】
<内視鏡用処置具の概略>
図1に示す内視鏡用処置具は、内視鏡を介して体内に挿入される連動部材1の先端部に取り付けられた処置部2をこの連動部材1を介して操作部3により遠隔操作して作動させるものである。
【0011】
前記連動部材1においては、前記操作部3と処置部2との間にコイル状可撓性案内管4が連結され、このコイル状可撓性案内管4内に連動ワイヤ5(連動線材)が挿通されている。
【0012】
前記処置部2においては、前記コイル状可撓性案内管4の先端部に支持部6が取着され、この支持部6には一対のカップ刃体7(処置体)が開閉動可能に支持されているとともに、この両カップ刃体7を開閉動させるための開閉リンク機構8が支持されている。前記連動ワイヤ5の先端部(図示せず)はこの開閉リンク機構8に接続されている。
【0013】
前記操作部3は操作部本体9と第一指掛け体10と第二指掛け体11とを備えている。この操作部本体9は、案内筒12と、この案内筒12の先端部に嵌着された口体13とを備えている。前記第二指掛け体11は、筒状をなし、この案内筒12の外周に挿嵌され、案内筒12に沿って移動し得るとともに、この移動方向A回りで回動し得る。前記第一指掛け体10は、環状をなし、この案内筒12の基端部に支持され、第二指掛け体11の移動方向A回りで回動し得る。第二指掛け体11は、その移動に伴い、第一指掛け体10に対し接近離間する。
【0014】
前記連動ワイヤ5の基端部は、前記口体13から案内筒12内に挿通され、後で詳述する始動操作位置調節機構P(図1,4,5参照)を介して前記第二指掛け体11に連結されている。
【0015】
<前記操作部3の始動操作位置調節機構Pの詳細>
この始動操作位置調節機構Pは、下記*で詳述する案内体14(図2,4,5参照)と第二指掛け体11の案内部としての案内孔15(図3,4,5参照)とを備えている。
【0016】
* 前記案内体14
この案内体14は、板状をなし、前記案内筒12内に挿嵌され、第二指掛け体11の移動方向Aに沿って移動し得るが、同移動方向A回りで回動しない。この案内体14にあって同移動方向Aに直交する方向の両側で雄ねじ16が形成されている。この両雄ねじ16は同移動方向A回りの螺旋の一部である。この両雄ねじ16間の中央で案内体14に切込み17が形成され、この切込み17に前記連動ワイヤ5の基端部が係入されて連結されている。
【0017】
前記案内体14にあって、移動方向Aの両側である始端側(前記第一指掛け体10に対し近い側)と終端側(前記第一指掛け体10に対し遠い側)とのうち、この始端側で切欠き18が中央から移動方向Aに対し直交する方向へ一方の雄ねじ16まで形成され、この切欠き18により分断された板ばね部19が形成されている。この板ばね部19は、案内体14の片側で中央から移動方向Aに対し直交する方向へ一方の雄ねじ16まで段差状に切り欠かれ、厚みを小さくした壁部19aと、この壁部19aに対し断面L状に連続する壁部19bとを有している。この壁部19bの端部に雄ねじ部16の始端部16a(雄ねじ16にあって螺旋の始まり部分)が形成されている。
【0018】
前記板ばね部19の壁部19aの端部には、雄ねじ部16の始端部16aに隣接して、調節始動位置ストッパ部20が形成されている。この調節始動位置ストッパ部20において、片側には傾斜状の螺合回動許容面20aが形成され、その反対側で前記始端部16aに面して螺合解除規制面20bが形成されている。
【0019】
一方、前記雄ねじ16の終端部16b(雄ねじ16にあって螺旋の終わり部分)が調節終動位置ストッパ部21になっている。
* 前記第二指掛け体11の案内孔15
この案内孔15は、筒状をなす第二指掛け体11の内周で前記案内体14の移動方向Aへ延設されて同移動方向Aの両側で開放され、移動方向Aの両側である始端側(前記第一指掛け体10に対し近い側)と終端側(前記第一指掛け体10に対し遠い側)とのうち、始端側の開放口15aと終端側の開放口15bとの間の中央に形成された雌ねじ22と、この雌ねじ22と始端側開放口15aとの間に形成された始端側内周面23と、この雌ねじ22と終端側開放口15bとの間に形成された終端側内周面24とを有している。この雌ねじ22は、輪環状螺旋をなし、始端部22a(雌ねじ22にあって螺旋の始まり部分)と、終端部22b(雌ねじ22にあって螺旋の終わり部分)とを有している。この始端部22aと終端部22bとは相対向して僅かに離間し、この始端部22aが調節始動位置ストッパ部25になっているとともに、この終端部22bが調節終動位置ストッパ部26になっている。
【0020】
* 前記案内体14と前記案内孔15との組付け
前記案内筒12の外周に挿嵌された第二指掛け体11を回動させて、この案内筒12内に挿嵌された案内体14の始端側を第二指掛け体11の案内孔15の終端側開放口15bから挿入する。その挿入時には、まず、図5(a)に示すように、前記雌ねじ22の終端部22bが前記調節始動位置ストッパ部20の螺合回動許容面20aに当接する。図5(a)に示す状態で、さらに、第二指掛け体11を回動させると、前記板ばね部19の壁部19aが撓んで、案内孔15の雌ねじ22と案内体14の雄ねじ16との螺合を許容する。従って、それらの螺合によりねじ対偶を構成するとともに、案内体14の両側が案内孔15の始端側内周面23及び終端側内周面24に接触する。
【0021】
* 内視鏡用処置具の使い方の概略
前記操作部3において第一指掛け体10に親指を入れるとともに第二指掛け体11を人指し指及び中指で挟んだ状態でこの第二指掛け体11を移動させると、連動部材1の連動ワイヤ5を介して、処置部2で両カップ刃体7が開閉リンク機構8により開閉動される。第一実施形態では、この第二指掛け体11の各操作位置等を下記・のように解釈する。
【0022】
・ 図1並びに図4(a)及び図5(b)に示す始動操作位置MB
この始動操作位置MBとは、案内体14に対する第二指掛け体11の調節位置(後述するように、調節始動位置RBと調節終動位置REとの間で設定される移動調節可能範囲RZ内の任意位置)に関係なく、第二指掛け体11に対する移動操作を開始する直前の停止位置であって、両カップ刃体7が最大閉動状態にある位置をいう。
【0023】
・ 図1に示す終動操作位置ME
この終動操作位置MEとは、案内体14に対する第二指掛け体11の調節位置に関係なく、前記始動操作位置MBにある第二指掛け体11を第一指掛け体10から離すように最大に移動させた停止位置であって、両カップ刃体7が最大開動状態にある位置をいう。
【0024】
・ 図1に示す移動操作可能範囲MZ
この移動操作可能範囲MZとは、前記始動操作位置MBと終動操作位置MEとの間で設定される範囲であって、第二指掛け体11を操作し得る最大の範囲をいう。
【0025】
* 前記第二指掛け体11の始動操作位置MBの調節
この第二指掛け体11は、前述した始動操作位置MBにあって、調節始動位置RBと調節終動位置REとの間で設定される移動調節可能範囲RZ内の任意位置へ移動し得る。第一実施形態では、この第二指掛け体11の各調節位置RB,RE等を下記・のように解釈する。
【0026】
・ 図1(a)及び図4(a)に示す調節始動位置RB
この調節始動位置RBとは、第二指掛け体11が第一指掛け体10に対し最も接近した状態で停止する位置であって、図4(b)に示すように、案内体14の雄ねじ16の始端部16aに対し案内孔15の雌ねじ22の始端部22aを調節始動位置ストッパ部20の螺合解除規制面20bで当接させてこれらの始端部16a,22a間の螺合解除を阻止する位置をいう。
【0027】
・ 図1(b)及び図5(b)に示す調節終動位置RE
この調節終動位置REとは、第二指掛け体11が第一指掛け体10に対し最も離間した状態で停止する位置であって、案内体14の雄ねじ16の終端部16bに対し案内孔15の雌ねじ22の終端部22bを調節終動位置ストッパ部21で当接させてこれらの終端部16b,22b間の螺合解除を阻止する位置をいう。
【0028】
・ 図1(a)(b)に示す移動調節可能範囲RZ
この移動調節可能範囲RZとは、前記調節始動位置RBと調節終動位置REとの間で設定される範囲であって、第二指掛け体11を調節し得る最大の範囲をいう。
【0029】
<第一実施形態の特徴>
第一実施形態は下記*の特徴(後記する他の技術的思想以外)を有する。
* 第一指掛け体10に対する第二指掛け体11の移動操作可能範囲MZにあって、その始動操作位置MBを変更する始動操作位置調節機構Pを操作部3に設けた。そのため、操作する者の手のサイズに応じて、始動操作位置MBで第一指掛け体10に対する第二指掛け体11の間隔L(図1参照)を変更することができる。従って、使い易くなって操作性を向上させることができる。
【0030】
* 操作部3の始動操作位置調節機構Pは、連動ワイヤ5の基端部が連結される案内体14と、この案内体14に対し移動可能に支持した第二指掛け体11の案内孔15とを備えている。従って、連動ワイヤ5の連結及び第二指掛け体11の移動調節を簡単な構造のもとで行うことができる。
【0031】
* 始動操作位置調節機構Pにおいて案内体14と第二指掛け体11の案内孔15とはねじ待遇としての雄ねじ16及び雌ねじ22により連動している。従って、第二指掛け体11の移動調節をより一層簡単な構造のもとで容易に行うことができるとともに、微調節も行い易い。
【0032】
〔第二実施形態〕
次に、本発明の第二実施形態にかかる内視鏡用処置具を第一実施形態との相違点を中心に図6〜8を参照して説明する。
【0033】
この第二実施形態の始動操作位置調節機構Pは、第一実施形態の始動操作位置調節機構Pと比較して、特に、調節始動位置ストッパ部20,25及び調節終動位置ストッパ部21,26を下記のように変更している。
【0034】
調節始動位置ストッパ部20と調節終動位置ストッパ部21とを兼用する部分が、案内体14の始端両側に突設されている。この案内体14の両側には始端から終端にわたり雄ねじ16が形成されている。
【0035】
第二指掛け体11の案内孔15においては、その始端側開放口15aの付近でピン28が挿着されて案内孔15内に若干露出し、その露出部分が調節終動位置ストッパ部26になっている。この案内孔15内では、その始端側開放口15aからこれと終端側開放口15bとの間のほぼ中央部まで始端側内周面23が形成されているとともに、この中央部から終端側開放口15bまで雌ねじ22が形成され、この始端側内周面23と雌ねじ22との境界部で調節始動位置ストッパ部25が段差状に形成されている。
【0036】
この第二実施形態においても、図6並びに図7及び図8に示す始動操作位置MB、図6に示す終動操作位置ME、図6に示す移動操作可能範囲MZについての解釈は、第一実施形態と同様である。
【0037】
この第二実施形態では、第二指掛け体11の各調節位置RB,RE等を下記・のように解釈する。
・ 図6(a)及び図7に示す調節始動位置RB
この調節始動位置RBとは、第二指掛け体11が第一指掛け体10に対し最も接近した状態で停止する位置であって、図7に示すように、案内体14の調節始動位置ストッパ部20に第二指掛け体11の調節始動位置ストッパ部25が当接する位置をいう。
【0038】
・ 図6(b)及び図8に示す調節終動位置RE
この調節終動位置REとは、第二指掛け体11が第一指掛け体10に対し最も離間した状態で停止する位置であって、図8に示すように、案内体14の調節終動位置ストッパ部21に第二指掛け体11の調節終動位置ストッパ部26が当接する位置をいう。
【0039】
・ 図6(a)(b)に示す移動調節可能範囲RZ
この移動調節可能範囲RZとは、前記調節始動位置RBと調節終動位置REとの間で設定される範囲であって、第二指掛け体11を調節し得る最大の範囲をいう。
【0040】
〔第三実施形態〕
次に、本発明の第三実施形態にかかる内視鏡用処置具を第一実施形態との相違点を中心に図9〜11を参照して説明する。
【0041】
この第三実施形態の始動操作位置調節機構Pは、第一実施形態の始動操作位置調節機構Pと比較して、特に、調節始動位置ストッパ部20,25を下記のように変更し、調節終動位置ストッパ部21,26を省略している点で異なる。
【0042】
調節始動位置ストッパ部20が案内体14の始端両側に突設されている。この案内体14の両側には始端から終端にわたり雄ねじ16が形成されている。
第二指掛け体11の案内孔15においては、その始端側開放口15aから終端側開放口15bまで雌ねじ22が形成されている。この始端側開放口15aの外周で第二指掛け体11の端面が調節始動位置ストッパ部25になっている。
【0043】
この第三実施形態においても、図9並びに図10及び図11に示す始動操作位置MB、図9に示す終動操作位置ME、図9に示す移動操作可能範囲MZについての解釈は、第一実施形態と同様である。
【0044】
この第三実施形態で、図9(a)及び図10に示す調節始動位置RBとは、第二指掛け体11が第一指掛け体10に対し最も接近した状態で停止する位置であって、図10に示すように、案内体14の調節始動位置ストッパ部20に第二指掛け体11の調節始動位置ストッパ部25が当接する位置をいう。
【0045】
なお、この第三実施形態では、図11に示すように、第二指掛け体11の雌ねじ22が案内体14の雄ねじ16から片側へ外れ得る。そのため、図1(a)(b)で示した第一実施形態の調節終動位置RE及び移動調節可能範囲RZに該当する位置は存在しない。
【0046】
〔第四実施形態〕
次に、本発明の第四実施形態にかかる内視鏡用処置具を第一実施形態との相違点を中心に図12〜14を参照して説明する。
【0047】
この第四実施形態の始動操作位置調節機構Pは、第一実施形態の始動操作位置調節機構Pと比較して、特に、調節始動位置ストッパ部20,25及び調節終動位置ストッパ部21,26を省略している点で異なる。すなわち、この第四実施形態は、調節始動位置ストッパ部20,25も省略されている以外、第三実施形態と同様である。なお、この第四実施形態では、図13,14に示すように、第二指掛け体11の雌ねじ22が案内体14の雄ねじ16から両側へ外れ得る。そのため、図1(a)(b)で示した第一実施形態の調節始動位置RB、調節終動位置RE及び移動調節可能範囲RZに該当する位置は存在しない。
【0048】
〔他の実施形態〕
前記各実施形態以外にも下記*のように構成してもよい。
* 図示しないが、第一指掛け体10を案内筒12に対し、回動可能に支持するばかりではなく、第二指掛け体11の移動方向Aへ移動可能に支持する。
【0049】
* 図示しないが、前記調節始動位置ストッパ部20,25及び調節終動位置ストッパ部21,26のうち、調節始動位置ストッパ部20,25のみを省略する。
【0050】
〔他の技術的思想〕
実施形態から把握できる技術的思想(請求項以外)を効果と共に記載する。
【0051】
(イ) 請求項1の始動操作位置調節機構Pにおいて、案内体14及び第二指掛け体11の案内孔15には、案内体14に対する第二指掛け体11の案内孔15の移動調節可能範囲RZにあって、その両端調節位置(調節始動位置RB、調節終動位置RE)のうち、少なくとも一方の端調節位置(調節始動位置RB、調節終動位置RE)で第二指掛け体11の案内孔15を停止させる端調節位置ストッパ部20,25,21,26を設けた。従って、第二指掛け体11の移動調節を移動調節可能範囲RZで確実かつ容易に行うことができ、操作性をより一層向上させることができる。
【0052】
(ロ) 請求項1の始動操作位置調節機構Pにおいて、
案内体14及び第二指掛け体11の案内孔15には、案内体14に対する第二指掛け体11の案内孔15の移動調節可能範囲RZにあって、一方の端調節位置(調節始動位置RB)で第二指掛け体11の案内孔15を停止させる端調節位置ストッパ部(調節始動位置ストッパ部20,25)を設けるとともに、他方の端調節位置(調節終動位置RE)で第二指掛け体11の案内孔15を停止させる端調節位置ストッパ部(調節終動位置ストッパ部21,26)を設け、
前記一方の端調節位置ストッパ部(調節始動位置ストッパ部20,25)は、案内体14の雄ねじ16の始端部16aに対し案内孔15の雌ねじ22の終端部22bを螺合可能にする螺合回動許容面20aと、案内体14の雄ねじ16の始端部16aに対し案内孔15の雌ねじ22の始端部22aを当接させてこれらの始端部16a,22a間の螺合解除を阻止する螺合解除規制面20bとを有し、
前記他方の端調節位置ストッパ部(調節終動位置ストッパ部21,26)は、案内体14の雄ねじ16の終端部16bと案内孔15の雌ねじ22の終端部22bとの当接面である。
【0053】
従って、第二指掛け体11の移動調節をより一層簡単な構造のもとで移動調節可能範囲RZにおいて確実かつ容易に行うことができ、操作性を向上させることができる。
【0054】
【発明の効果】
請求項1の発明にかかる内視鏡用処置具によれば、第一指掛け体(10)に対する第二指掛け体(11)の移動操作可能範囲(MZ)にあって、第二指掛け体(11)の始動操作位置(MB)を変更する始動操作位置調節機構(P)を操作部(3)に設けたので、操作する者の手のサイズに応じて、始動操作位置(MB)で第一指掛け体(10)に対する第二指掛け体(11)の間隔(L)を変更することができ、使い易くなって操作性を向上させることができる。
【0055】
また、操作部(3)の始動操作位置調節機構(P)は、連動部材(5)の基端部が連結される案内体(14)と、この案内体(14)に対し移動可能に支持した第二指掛け体(11)の案内孔(15)とを備えているので、連動線材(5)の連結及び第二指掛け体(11)の移動調節を簡単な構造のもとで行うことができる。
【0056】
さらに、始動操作位置調節機構(P)において案内体(14)と第二指掛け体(11)の案内孔(15)とはねじ待遇としての雄ねじ(16)及び雌ねじ(22)により連動しているので、第二指掛け体(11)の移動調節をより一層簡単な構造のもとで容易に行うことができるとともに、微調節も行い易い。
【図面の簡単な説明】
【図1】 (a)は第一実施形態にかかる内視鏡用処置具において第一指掛け体に対し第二指掛け体が始動操作位置で且つ調節始動位置にある状態を示す正面図であり、(b)は同じく始動操作位置で且つ調節終動位置にある状態を示す正面図である。
【図2】 (a)は第一実施形態の始動操作位置調節機構において案内体を示す側面図であり、(b)は(a)のX1 −X1 線断面図である。
【図3】 (a)は第一実施形態の始動操作位置調節機構において第二指掛け体を側面側から見た断面図であり、(b)は(a)の平面図である。
【図4】 (a)は図1(a)のX2 −X2 線における部分拡大断面図であり、(b)は(a)のX3 −X3 線における部分拡大断面図である。
【図5】 (a)は案内体に対し第二指掛け体を螺合する直前の状態を示す部分拡大断面図であり、(b)は図1(b)のX4 −X4 線における部分拡大断面図である。
【図6】 (a)は第二実施形態にかかる内視鏡用処置具において第一指掛け体に対し第二指掛け体が始動操作位置で且つ調節始動位置にある状態を示す正面図であり、(b)は同じく始動操作位置で且つ調節終動位置にある状態を示す正面図である。
【図7】 図6(a)のY1 −Y1 線における部分拡大断面図である。
【図8】 図6(b)のY2 −Y2 線における部分拡大断面図である。
【図9】 (a)は第三実施形態にかかる内視鏡用処置具において第一指掛け体に対し第二指掛け体が始動操作位置で且つ調節始動位置にある状態を示す正面図であり、(b)は同じく始動操作位置で且つ調節終動位置にある状態を示す正面図である。
【図10】 図9(a)のZ1 −Z1 線における部分拡大断面図である。
【図11】 図9(b)のZ2 −Z2 線における部分拡大断面図である。
【図12】 (a)は第四実施形態にかかる内視鏡用処置具において第一指掛け体に対し第二指掛け体が始動操作位置で且つ調節始動位置にある状態を示す正面図であり、(b)は同じく始動操作位置で且つ調節終動位置にある状態を示す正面図である。
【図13】 図12(a)のZ3 −Z3 線における部分拡大断面図である。
【図14】 図12(b)のZ4 −Z4 線における部分拡大断面図である。
【符号の説明】
1…連動部材、2…処置部、3…操作部、5…連動ワイヤ(連動線材)、10…第一指掛け体、11…第二指掛け体、14…案内体、15…案内孔(案内部)、16…雄ねじ、16a…雄ねじ始端部、16b…雄ねじ終端部、20…調節始動位置ストッパ部、20a…螺合回動許容面、20b…螺合解除規制面、21…調節終動位置ストッパ部、22…雌ねじ、22a…雌ねじ始端部、22b…雌ねじ終端部、25…調節始動位置ストッパ部、26…調節終動位置ストッパ部、P…始動操作位置調節機構、MB…始動操作位置、MZ…移動操作可能範囲、RB…調節始動位置、RE…調節終動位置、RZ…移動調節可能範囲。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope treatment tool used for surgery, medical examination, and the like, wherein a treatment portion provided at a distal end portion of an interlocking member that is inserted into the body via an endoscope is operated via the interlocking member. The present invention relates to an operating device that is operated by remote control.
[0002]
[Prior art]
Conventionally, in this type of endoscope treatment tool, a first finger hanger and a second finger hanger are supported on the guide tube of the operation unit, and the second finger hanger is moved closer to and away from the first finger hanger. In addition to being able to move along the guide tube, it can be rotated around this moving direction. The treatment unit is remotely operated by the movement operation of the second finger-hanging body.
[0003]
[Problems to be solved by the invention]
However, in the conventional operation device for an endoscopic treatment tool, since the distance between the second finger-hanging body and the first finger-hanging body is constant at the starting operation position, it is difficult to use depending on the size of the operator's hand. It was.
[0004]
An object of the present invention is to improve the operability by making it easier to use an endoscope treatment tool.
[0005]
[Means for Solving the Problems]
Drawing of each embodiment described later (first embodiment shown in FIGS. 1 to 5, second embodiment shown in FIGS. 6 to 8, third embodiment shown in FIGS. 9 to 11, and fourth embodiment shown in FIGS. 12 to 14) ) Will be used to explain the present invention.
[0006]
An endoscopic treatment tool according to the invention of claim 1 includes a treatment portion (2) provided at a distal end portion of an interlocking member (1) to be inserted into the body through the endoscope. Via the operation unit (3) to be operated by remote control, and is configured as follows.
The operation portion (3) includes a guide tube (12) and an operation portion main body (9) having a mouth body (13) provided at a distal end portion of the guide tube (12). Guide of the operation unit body (9) between the first finger hanger (10) supported at the base end, the mouth (13) of the operation unit body (9) and the first finger hanger (10). A second finger hanger (11) that is inserted into the outer periphery of the tube (12), can move along the guide tube (12), and can rotate along the outer periphery of the guide tube (12) . . The interlocking member (1) includes a guide tube (4) connected between the treatment portion (2) and the mouth (13) of the operation portion main body (9), and a guide tube (4). An interlocking wire (5) that is inserted and connected to the treatment portion (2) is provided. The starting operation position adjusting mechanism (P) provided in the operation portion (3) can be inserted into the guide tube (12) of the operation portion main body (9) and moved along the guide tube (12). And the guide body (14) by which the edge part of the said interlocking wire (5) is inserted and connected by the guide cylinder (12) from the opening (13) of the said operation part main body (9), and this guide body (14). And a guide hole (15) of the second finger hanging body (11). The male screw (16) provided in the guide body (14) and the female screw (22) provided in the guide hole (15) are screwed together to rotate the second finger-hanging body (11) relative to the guide tube (12). In accordance with the moving operation, the female screw (22) of the guide hole (15) moves along the guide tube (12) with respect to the male screw (16) of the guide body (14). Said treatment unit (2) as well as to be remotely operated by movement of the second finger placing member (11), the moving operation range of the second finger rest body relative to the first finger placing member (10) (11) (MZ) Thus, the starting operation position (MB) of the second finger-hanging body (11) can be changed .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
[First embodiment]
First, an endoscope treatment tool according to a first embodiment of the present invention will be described with reference to FIGS.
[0010]
<Outline of treatment tool for endoscope>
The endoscope treatment tool shown in FIG. 1 is operated remotely by the operation unit 3 via the interlocking member 1 on the treatment unit 2 attached to the distal end of the interlocking member 1 inserted into the body via the endoscope. To operate.
[0011]
In the interlocking member 1, a coiled flexible guide tube 4 is connected between the operation unit 3 and the treatment unit 2, and an interlocking wire 5 (interlocking wire) is provided in the coiled flexible guide tube 4. It is inserted.
[0012]
In the treatment portion 2, a support portion 6 is attached to the distal end portion of the coiled flexible guide tube 4, and a pair of cup blades 7 (treatment body) is supported on the support portion 6 so as to be opened and closed. In addition, an opening / closing link mechanism 8 for opening and closing both the cup blade bodies 7 is supported. A distal end portion (not shown) of the interlocking wire 5 is connected to the opening / closing link mechanism 8.
[0013]
The operation unit 3 includes an operation unit main body 9, a first finger hanger 10, and a second finger hanger 11. The operation unit main body 9 includes a guide tube 12 and a mouth body 13 fitted to the distal end portion of the guide tube 12. The second finger-hanging body 11 has a cylindrical shape, is fitted on the outer periphery of the guide cylinder 12, can move along the guide cylinder 12, and can rotate around the movement direction A. The first finger-hanging body 10 has an annular shape, is supported by the base end portion of the guide tube 12 , and can rotate around the moving direction A of the second finger-hanging body 11. The second finger hanger 11 moves closer to and away from the first finger hanger 10 with the movement.
[0014]
The base end portion of the interlocking wire 5 is inserted into the guide tube 12 from the mouth body 13, and the second finger hook is connected via a starting operation position adjusting mechanism P (see FIGS. 1, 4 and 5) described in detail later. It is connected to the body 11.
[0015]
<Details of Start Operation Position Adjustment Mechanism P of the Operation Unit 3>
The starting operation position adjusting mechanism P includes a guide body 14 (see FIGS. 2, 4, and 5), which will be described in detail in the following *, and a guide hole 15 (see FIGS. 3, 4, and 5) as a guide portion of the second finger hook body 11. And.
[0016]
* Guide body 14
The guide body 14 has a plate shape, is inserted into the guide cylinder 12 and can move along the moving direction A of the second finger-hanging body 11, but does not rotate around the moving direction A. Male screws 16 are formed on both sides of the guide body 14 in the direction orthogonal to the moving direction A. Both male screws 16 are part of a spiral around the moving direction A. A notch 17 is formed in the guide body 14 at the center between the both male screws 16, and the base end portion of the interlocking wire 5 is engaged with and connected to the notch 17.
[0017]
Among the guide body 14, the start end of the start end side (side closer to the first finger-hanging body 10) and the end side (side far from the first finger-hanging body 10) that are both sides in the moving direction A On the side, a notch 18 is formed from the center to one male screw 16 in a direction orthogonal to the moving direction A, and a leaf spring portion 19 divided by the notch 18 is formed. The leaf spring portion 19 is cut out in a step shape from one center of the guide body 14 to one male screw 16 in the direction orthogonal to the moving direction A from the center, and a wall portion 19a having a reduced thickness and a wall portion 19a. On the other hand, it has the wall part 19b which follows a cross-section L shape. The end portion of the wall portion 19b is formed with a start end portion 16a of the male screw portion 16 (a spiral start portion in the male screw 16).
[0018]
An adjustment start position stopper portion 20 is formed at the end portion of the wall portion 19 a of the leaf spring portion 19 adjacent to the start end portion 16 a of the male screw portion 16. The adjustment start position stopper portion 20 is formed with an inclined screw rotation allowing surface 20a on one side, and a screw release restricting surface 20b facing the start end portion 16a on the opposite side.
[0019]
On the other hand, the terminal end portion 16 b of the male screw 16 (the end portion of the spiral in the male screw 16) is an adjustment end position stopper portion 21.
* Guide hole 15 in the second finger-hanging body 11
The guide hole 15 extends in the movement direction A of the guide body 14 on the inner periphery of the cylindrical second finger-hanging body 11 and is opened on both sides of the movement direction A. Center between the opening 15a on the start end side and the opening 15b on the end side among the side (the side closer to the first finger hanger 10) and the terminal side (the side far from the first finger hanger 10) , A start-end-side inner peripheral surface 23 formed between the female screw 22 and the start-end-side opening 15a, and a terminal-side formed between the female screw 22 and the terminal-side opening 15b. And an inner peripheral surface 24. The female screw 22 forms a ring-shaped spiral and has a start end portion 22a (in the female screw 22 and a spiral start portion) and a terminal end portion 22b (in the female screw 22 and a spiral end portion). The start end portion 22a and the end end portion 22b face each other and are slightly separated from each other. The start end portion 22a serves as an adjustment start position stopper portion 25, and the end portion 22b serves as an adjustment end position stopper portion 26. ing.
[0020]
* Assembly of the guide body 14 and the guide hole 15 The second finger holder 11 inserted in the outer periphery of the guide cylinder 12 is rotated, and the guide body 14 inserted in the guide cylinder 12 is rotated. The start end side is inserted from the end side opening 15b of the guide hole 15 of the second finger hanging body 11. At the time of the insertion, first, as shown in FIG. 5A, the end portion 22 b of the female screw 22 comes into contact with the threading rotation allowable surface 20 a of the adjustment start position stopper portion 20. In the state shown in FIG. 5 (a), when the second finger hook body 11 is further rotated, the wall portion 19 a of the leaf spring portion 19 bends, and the female screw 22 of the guide hole 15 and the male screw 16 of the guide body 14. Screwing is allowed. Accordingly, a screw pair is formed by screwing them, and both sides of the guide body 14 are in contact with the start side inner peripheral surface 23 and the end side inner peripheral surface 24 of the guide hole 15.
[0021]
* Outline of how to use the endoscope treatment tool When the second finger hanger 11 is moved with the thumb placed on the first finger hanger 10 and the second finger hanger 11 sandwiched between the forefinger and the middle finger in the operation unit 3. Both cup blades 7 are opened / closed by the opening / closing link mechanism 8 in the treatment section 2 via the interlocking wire 5 of the interlocking member 1. In the first embodiment, each operation position of the second finger hanging body 11 is interpreted as follows.
[0022]
・ Starting operation position MB shown in FIG. 1 and FIGS. 4 (a) and 5 (b)
The starting operation position MB is an adjustment position of the second finger-hanging body 11 with respect to the guide body 14 (as will be described later, within a movement adjustable range RZ set between the adjustment starting position RB and the adjustment end position RE. Regardless of the (arbitrary position), it is a stop position immediately before starting the moving operation with respect to the second finger hanging body 11, and is a position where both cup blade bodies 7 are in the maximum closed state.
[0023]
-Final operation position ME shown in FIG.
This final operation position ME moves to the maximum so that the second finger hanger 11 at the start operation position MB is separated from the first finger hanger 10 regardless of the adjustment position of the second finger hanger 11 with respect to the guide body 14. It is the stopped position, and the position where both cup blades 7 are in the maximum open state.
[0024]
・ Moveable operation range MZ shown in FIG.
The movable operation possible range MZ is a range set between the start operation position MB and the final operation position ME, and is the maximum range in which the second finger hanging body 11 can be operated.
[0025]
* Adjustment of the starting operation position MB of the second finger hanging body 11 The second finger hanging body 11 is located at the above-mentioned starting operation position MB and is set between the adjustment starting position RB and the adjustment end position RE. It can move to any position within the adjustable range RZ. In the first embodiment, the adjustment positions RB, RE and the like of the second finger hanging body 11 are interpreted as follows.
[0026]
-Adjustment start position RB shown in FIG. 1 (a) and FIG. 4 (a)
The adjustment start position RB is a position where the second finger hanging body 11 stops in a state of being closest to the first finger hanging body 10, and as shown in FIG. 4 (b), the male screw 16 of the guide body 14 is stopped. A position where the start end portion 22a of the female screw 22 of the guide hole 15 is brought into contact with the start end portion 16a at the screw release restricting surface 20b of the adjustment start position stopper portion 20 to prevent screw release between the start end portions 16a and 22a. Say.
[0027]
The adjustment end position RE shown in FIGS. 1 (b) and 5 (b)
This adjustment end position RE is a position where the second finger-hanging body 11 stops in the state of being most separated from the first finger-hanging body 10, and the guide hole 15 is positioned with respect to the end portion 16 b of the male screw 16 of the guide body 14. It refers to a position where the end portion 22b of the female screw 22 is brought into contact with the adjustment end position stopper portion 21 to prevent screwing between the end portions 16b and 22b.
[0028]
・ Movement adjustable range RZ shown in Fig.1 (a) (b)
The movement adjustable range RZ is a range set between the adjustment start position RB and the adjustment end position RE, and is the maximum range in which the second finger hanging body 11 can be adjusted.
[0029]
<Characteristics of the first embodiment>
The first embodiment has the following * characteristics (other than other technical ideas described later).
* A start operation position adjustment mechanism P that changes the start operation position MB in the movable operation range MZ of the second finger cover 11 relative to the first finger cover 10 is provided in the operation unit 3. Therefore, the distance L (see FIG. 1) of the second finger-hanging body 11 with respect to the first finger-hanging body 10 can be changed at the starting operation position MB according to the size of the hand of the person who operates. Therefore, it becomes easy to use and operability can be improved.
[0030]
* The starting operation position adjusting mechanism P of the operation unit 3 includes a guide body 14 to which a base end portion of the interlocking wire 5 is coupled, and a guide hole 15 of the second finger hook body 11 supported so as to be movable with respect to the guide body 14. It has. Therefore, the connection of the interlocking wire 5 and the movement adjustment of the second finger hook 11 can be performed with a simple structure.
[0031]
* In the starting operation position adjusting mechanism P, the guide body 14 and the guide hole 15 of the second finger hook body 11 are interlocked by a male screw 16 and a female screw 22 as screw treatment. Therefore, the movement adjustment of the second finger hanging body 11 can be easily performed with a simpler structure, and the fine adjustment can be easily performed.
[0032]
[Second Embodiment]
Next, an endoscope treatment tool according to a second embodiment of the present invention will be described with reference to FIGS. 6 to 8 focusing on differences from the first embodiment.
[0033]
Compared with the start operation position adjustment mechanism P of the first embodiment, the start operation position adjustment mechanism P of the second embodiment is particularly adjusted start position stopper portions 20 and 25 and adjustment end position stopper portions 21 and 26. Has been changed as follows.
[0034]
Portions that serve as both the adjustment start position stopper portion 20 and the adjustment end position stopper portion 21 protrude from both sides of the start end of the guide body 14. Male screws 16 are formed on both sides of the guide body 14 from the start to the end.
[0035]
In the guide hole 15 of the second finger-hanging body 11, a pin 28 is inserted in the vicinity of the start end side opening 15a and is slightly exposed in the guide hole 15, and the exposed portion becomes the adjustment end position stopper portion 26. ing. In the guide hole 15, a start-end-side inner peripheral surface 23 is formed from the start-end-side open port 15 a to a substantially central portion between the start-end-side open port 15 a and the end-side open port 15 b. An internal thread 22 is formed up to 15 b, and an adjustment starting position stopper portion 25 is formed in a step shape at the boundary between the starting end side inner peripheral surface 23 and the internal thread 22.
[0036]
Also in the second embodiment, the interpretation of the start operation position MB shown in FIGS. 6, 7 and 8, the end operation position ME shown in FIG. 6, and the movable operation possible range MZ shown in FIG. It is the same as the form.
[0037]
In the second embodiment, the adjustment positions RB, RE, etc. of the second finger hanging body 11 are interpreted as follows.
-Adjustment start position RB shown in FIG. 6 (a) and FIG.
The adjustment starting position RB is a position where the second finger hanging body 11 stops in a state of being closest to the first finger hanging body 10, and as shown in FIG. 7, the adjustment starting position stopper portion 20 of the guide body 14. The position at which the adjustment start position stopper portion 25 of the second finger hanging body 11 abuts.
[0038]
The adjustment end position RE shown in FIGS. 6B and 8
The adjustment end position RE is a position where the second finger hanging body 11 stops in a state of being most separated from the first finger hanging body 10, and as shown in FIG. This is the position where the adjustment end position stopper portion 26 of the second finger 11 is in contact with the portion 21.
[0039]
-Movement adjustable range RZ shown in FIGS. 6 (a) and 6 (b)
The movement adjustable range RZ is a range set between the adjustment start position RB and the adjustment end position RE, and is the maximum range in which the second finger hanging body 11 can be adjusted.
[0040]
[Third embodiment]
Next, an endoscope treatment tool according to a third embodiment of the present invention will be described with reference to FIGS. 9 to 11 focusing on differences from the first embodiment.
[0041]
Compared with the start operation position adjustment mechanism P of the first embodiment, the start operation position adjustment mechanism P of the third embodiment particularly changes the adjustment start position stopper portions 20 and 25 as described below to adjust the end of the adjustment. The difference is that the moving position stopper portions 21 and 26 are omitted.
[0042]
The adjustment start position stopper portion 20 is provided on both sides of the starting end of the guide body 14. Male screws 16 are formed on both sides of the guide body 14 from the start to the end.
In the guide hole 15 of the second finger-hanging body 11, a female screw 22 is formed from the start end side opening 15a to the end side opening 15b. The end surface of the second finger-hanging body 11 is an adjustment starting position stopper portion 25 on the outer periphery of the starting end side opening 15a.
[0043]
Also in the third embodiment, the start operation position MB shown in FIGS. 9, 10 and 11, the end operation position ME shown in FIG. 9, and the movable operation possible range MZ shown in FIG. It is the same as the form.
[0044]
In the third embodiment, the adjustment start position RB shown in FIG. 9A and FIG. 10 is a position where the second finger hanging body 11 stops in the state of being closest to the first finger hanging body 10. As shown in FIG. 10, it refers to a position where the adjustment start position stopper portion 25 of the second finger hook 11 comes into contact with the adjustment start position stopper portion 20 of the guide body 14.
[0045]
In the third embodiment, as shown in FIG. 11, the female screw 22 of the second finger hanging body 11 can be released from the male screw 16 of the guide body 14 to one side. Therefore, there is no position corresponding to the adjustment end position RE and the movement adjustable range RZ of the first embodiment shown in FIGS.
[0046]
[Fourth embodiment]
Next, an endoscope treatment tool according to a fourth embodiment of the present invention will be described with reference to FIGS. 12 to 14 focusing on differences from the first embodiment.
[0047]
Compared with the start operation position adjustment mechanism P of the first embodiment, the start operation position adjustment mechanism P of the fourth embodiment is particularly adjusted start position stopper portions 20 and 25 and adjustment end position stopper portions 21 and 26. It is different in that is omitted. That is, the fourth embodiment is the same as the third embodiment except that the adjustment start position stopper portions 20 and 25 are also omitted. In the fourth embodiment, as shown in FIGS. 13 and 14, the female screw 22 of the second finger hook 11 can be disengaged from the male screw 16 of the guide body 14 to both sides. Therefore, there is no position corresponding to the adjustment start position RB, the adjustment end position RE, and the movement adjustable range RZ of the first embodiment shown in FIGS.
[0048]
[Other Embodiments]
In addition to the above embodiments, the following * may be used.
* Although not shown, the first finger holder 10 is supported not only so as to be rotatable with respect to the guide tube 12 but also so as to be movable in the moving direction A of the second finger holder 11.
[0049]
* Although not shown, only the adjustment start position stopper portions 20 and 25 among the adjustment start position stopper portions 20 and 25 and the adjustment end position stopper portions 21 and 26 are omitted.
[0050]
[Other technical ideas]
The technical idea (other than the claims) that can be grasped from the embodiment will be described together with the effects .
[0051]
(A) In the starting operation position adjustment mechanism P according to claim 1 , the guide hole 15 of the guide body 14 and the second finger hook body 11 has an adjustable movement range RZ of the guide hole 15 of the second finger hook body 11 with respect to the guide body 14. Then, the guide hole of the second finger-hanging body 11 at at least one end adjustment position (adjustment start position RB, adjustment end position RE) among the both end adjustment positions (adjustment start position RB, adjustment end position RE). End adjustment position stopper portions 20, 25, 21, and 26 for stopping 15 are provided. Therefore, the movement adjustment of the second finger hanging body 11 can be performed reliably and easily in the movement adjustable range RZ, and the operability can be further improved.
[0052]
(B) Te start operation position adjusting mechanism P smell of claim 1,
The guide body 14 and the guide hole 15 of the second finger-hanging body 11 are within an adjustable range RZ of the guide hole 15 of the second finger-hanging body 11 relative to the guide body 14 and have one end adjustment position (adjustment start position RB). Are provided with end adjustment position stoppers (adjustment start position stoppers 20 and 25) for stopping the guide holes 15 of the second finger hanger 11, and the second finger hanger 11 at the other end adjustment position (adjustment end position RE). End adjusting position stopper portions (adjustment end position stopper portions 21 and 26) for stopping the guide holes 15 are provided,
The one end adjustment position stopper portion (adjustment start position stopper portions 20, 25) is screwed so that the end portion 22b of the female screw 22 of the guide hole 15 can be screwed into the start end portion 16a of the male screw 16 of the guide body 14. A screw that prevents the unscrewing between the start end portions 16a and 22a by bringing the start end portion 22a of the female screw 22 of the guide hole 15 into contact with the rotation allowable surface 20a and the start end portion 16a of the male screw 16 of the guide body 14. A joint release regulating surface 20b,
The other end adjustment position stopper portion (adjustment end position stopper portion 21, 26) is a contact surface between the end portion 16 b of the external thread 16 of the guide body 14 and the end portion 22 b of the internal thread 22 of the guide hole 15 .
[0053]
Therefore, the movement adjustment of the second finger-hanging body 11 can be performed reliably and easily in the movement adjustable range RZ with a simpler structure, and the operability can be improved.
[0054]
【The invention's effect】
According to the endoscope treatment tool of the first aspect of the present invention, the second finger hanger (11) is within the movable operation range (MZ) of the second finger hanger (11) relative to the first finger hanger (10). ) Is provided in the operation section (3) so that the first operation position (MB) is changed according to the size of the operator's hand . The distance (L) between the second finger-hanging body (11) and the finger-hanging body (10) can be changed, and it becomes easy to use and the operability can be improved.
[0055]
Further, the starting operation position adjusting mechanism (P) of the operation portion (3) is supported so as to be movable with respect to the guide body (14) to which the base end portion of the interlocking member (5) is coupled, and the guide body (14). Since the guide hole (15) of the second finger hanger (11) is provided, the connection of the interlocking wire (5) and the movement adjustment of the second finger hanger (11) can be performed with a simple structure. it can.
[0056]
Further, in the starting operation position adjusting mechanism (P), the guide body (14) and the guide hole (15) of the second finger hook (11) are interlocked by a male screw (16) and a female screw (22) as screw treatment. Therefore, the movement adjustment of the second finger hanging body (11) can be easily performed with a simpler structure , and the fine adjustment is also easily performed.
[Brief description of the drawings]
FIG. 1A is a front view showing a state in which a second finger-hanging body is in a starting operation position and an adjustment starting position with respect to the first finger-hanging body in the endoscope treatment tool according to the first embodiment; (B) is a front view which similarly shows the state which exists in a starting operation position and an adjustment end position.
2A is a side view showing a guide body in the starting operation position adjusting mechanism of the first embodiment, and FIG. 2B is a cross-sectional view taken along line X 1 -X 1 in FIG.
3A is a cross-sectional view of a second finger-hanging body as viewed from the side in the starting operation position adjusting mechanism of the first embodiment, and FIG. 3B is a plan view of FIG.
4A is a partially enlarged sectional view taken along line X 2 -X 2 in FIG. 1A, and FIG. 4B is a partially enlarged sectional view taken along line X 3 -X 3 in FIG.
5A is a partially enlarged cross-sectional view showing a state immediately before the second finger-hanging body is screwed to the guide body, and FIG. 5B is a portion taken along line X 4 -X 4 in FIG. It is an expanded sectional view.
6A is a front view showing a state in which the second finger-hanging body is in the starting operation position and in the adjustment starting position with respect to the first finger-holding body in the endoscope treatment tool according to the second embodiment; FIG. (B) is a front view which similarly shows the state which exists in a starting operation position and an adjustment end position.
7 is a partial enlarged cross-sectional view taken along line Y 1 -Y 1 in FIG.
8 is a partially enlarged cross-sectional view taken along line Y 2 -Y 2 of FIG. 6B.
FIG. 9A is a front view showing a state where the second finger-hanging body is in the starting operation position and in the adjustment starting position with respect to the first finger-hanging body in the endoscope treatment tool according to the third embodiment; (B) is a front view which similarly shows the state which exists in a starting operation position and an adjustment end position.
10 is a partial enlarged cross-sectional view taken along line Z 1 -Z 1 in FIG.
11 is a partial enlarged cross-sectional view taken along line Z 2 -Z 2 of FIG. 9B.
FIG. 12A is a front view showing a state where the second finger-hanging body is in the starting operation position and in the adjustment starting position with respect to the first finger-hanging body in the endoscope treatment tool according to the fourth embodiment; (B) is a front view which similarly shows the state which exists in a starting operation position and an adjustment end position.
13 is a partially enlarged cross-sectional view taken along line Z 3 -Z 3 in FIG.
14 is a partial enlarged cross-sectional view taken along line Z 4 -Z 4 in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Interlocking member, 2 ... Treatment part, 3 ... Operation part, 5 ... Interlocking wire (interlocking wire), 10 ... 1st finger hanger, 11 ... 2nd finger hanger, 14 ... Guide body, 15 ... Guide hole (guide part) ), 16... Male screw, 16 a. , 22 ... female screw, 22a ... female screw start end, 22b ... female screw terminal, 25 ... adjustment start position stopper, 26 ... adjustment end position stopper, P ... start operation position adjustment mechanism, MB ... start operation position, MZ ... movable operation possible range, RB ... adjustment start position, RE ... adjustment end position, RZ ... movement adjustable range.

Claims (1)

内視鏡を介して体内に挿入される連動部材の先端部に設けた処置部をこの連動部材を介して操作部により遠隔操作して作動させる内視鏡用処置具において、
前記操作部には、案内筒とその案内筒の先端部に設けた口体とを有する操作部本体に対しその案内筒の基端部で支持した第一指掛け体と、この操作部本体の口体とこの第一指掛け体との間でこの操作部本体の案内筒の外周に挿嵌されて案内筒に沿って移動し得るとともにこの案内筒の外周に沿って回動し得る第二指掛け体とを備え、
前記連動部材には、前記処置部と前記操作部本体の口体との間に連結した案内管と、その案内管内に挿通されてこの処置部に連結された連動線材とを備え、
前記操作部に設けた始動操作位置調節機構には、前記操作部本体の案内筒に挿嵌されてその案内筒に沿って移動し得るとともに前記連動線材の端部が前記操作部本体の口体から案内筒に挿通されて連結される案内体と、この案内体が挿入される前記第二指掛け体の案内孔とを備え、この案内体に設けた雄ねじとこの案内孔に設けた雌ねじとを互いに螺合して、案内筒に対する第二指掛け体の回動操作に伴いこの案内孔の雌ねじがこの案内体の雄ねじに対し案内筒に沿って移動し、
前記第二指掛け体の移動により前記処置部を遠隔操作可能にするとともに、前記第一指掛け体に対する第二指掛け体の移動操作可能範囲にあって第二指掛け体の始動操作位置を変更可能にした
ことを特徴とする内視鏡用処置具における操作装置。
In a treatment instrument for an endoscope that is operated by remotely operating a treatment portion provided at a distal end portion of an interlocking member to be inserted into the body via an endoscope with an operation portion via the interlocking member,
The operation section includes a first finger-hanging body supported at a base end portion of the guide cylinder with respect to an operation section main body having a guide cylinder and a mouth provided at a distal end portion of the guide cylinder, and a mouth of the operation section main body. A second finger-hanging body that is fitted on the outer periphery of the guide cylinder of the operation section main body between the body and the first finger-hanging body and can move along the guide cylinder and rotate along the outer periphery of the guide cylinder And
The interlocking member includes a guide tube connected between the treatment portion and the mouth of the operation portion main body, and an interlocking wire inserted into the guide tube and connected to the treatment portion,
The starting operation position adjusting mechanism provided in the operation portion is inserted into a guide tube of the operation portion main body and can move along the guide tube, and an end of the interlocking wire is a mouth of the operation portion main body. A guide body that is inserted through and connected to the guide cylinder, and a guide hole of the second finger hook body into which the guide body is inserted, and a male screw provided in the guide body and a female screw provided in the guide hole. The internal thread of the guide hole moves along the guide cylinder with respect to the external thread of the guide body in accordance with the turning operation of the second finger hanging body with respect to the guide cylinder.
As well as the treatment portion by the movement of the second finger placing member allows remote operation and can be changed to start operation position of the second finger placing member In the movement operation range of the second finger rest body relative to the first finger placing member <br/> An operating device for an endoscopic treatment tool.
JP12354298A 1998-05-06 1998-05-06 Operating device for treatment tool for endoscope Expired - Fee Related JP3922667B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12354298A JP3922667B2 (en) 1998-05-06 1998-05-06 Operating device for treatment tool for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12354298A JP3922667B2 (en) 1998-05-06 1998-05-06 Operating device for treatment tool for endoscope

Publications (2)

Publication Number Publication Date
JPH11313835A JPH11313835A (en) 1999-11-16
JP3922667B2 true JP3922667B2 (en) 2007-05-30

Family

ID=14863183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12354298A Expired - Fee Related JP3922667B2 (en) 1998-05-06 1998-05-06 Operating device for treatment tool for endoscope

Country Status (1)

Country Link
JP (1) JP3922667B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3370601B2 (en) * 1998-05-28 2003-01-27 ペンタックス株式会社 Operation unit of endoscope treatment tool
JP5244418B2 (en) * 2008-02-28 2013-07-24 Hoya株式会社 Endoscope operation part
JP5186246B2 (en) * 2008-03-03 2013-04-17 Hoya株式会社 Operation unit of disposable treatment instrument for endoscope

Also Published As

Publication number Publication date
JPH11313835A (en) 1999-11-16

Similar Documents

Publication Publication Date Title
JP5296274B1 (en) Endoscopic treatment tool
US5591203A (en) Anastomosis cuff manipulator tool
US5997565A (en) Forceps for an endoscopic operation
US6228059B1 (en) Endoscopic instrument locks
US5196023A (en) Surgical needle holder and cutter for an endo-suture, endo-ligature or the like
EP2147638B1 (en) Endoscopically inserting surgical tool
US5702349A (en) Endoscope with acutely angled handle and associated focus adjustment mechanism
US5282806A (en) Endoscopic surgical instrument having a removable, rotatable, end effector assembly
US8398620B2 (en) Medical instrument with a rotatable detent
US5423855A (en) Capped locking clamp for manipulation of surgical implants
US20080228251A1 (en) Suture Sleeve
JP6535496B2 (en) Medical treatment tool holding tool
JP2005504572A5 (en)
CA2252598A1 (en) Spring based multi-purpose medical instrument
US7517354B2 (en) Medical instrument
JP3922667B2 (en) Operating device for treatment tool for endoscope
US10238372B2 (en) Atrium retractor
WO1993016644A1 (en) Endoscopic surgical instrument with rotary end-effect element
JP4312038B2 (en) Endoscope
JP4323300B2 (en) Endoscope
US7316694B2 (en) Surgical suturing apparatus
EP1757241A1 (en) Surgical treatment device
JPH10179602A (en) Structure of treating part in treating implement for endoscope
CN207804298U (en) A kind of laparoscope linear cutting anastomat resist-nailed seat deploying device
WO2022082374A1 (en) Drive assembly, actuator, and surgical robot

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050427

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20061101

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20061114

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061227

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: 20070213

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070219

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20130302

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20160302

Year of fee payment: 9

LAPS Cancellation because of no payment of annual fees