JPS61172534A - Body insert length detector of endoscope - Google Patents
Body insert length detector of endoscopeInfo
- Publication number
- JPS61172534A JPS61172534A JP60013785A JP1378585A JPS61172534A JP S61172534 A JPS61172534 A JP S61172534A JP 60013785 A JP60013785 A JP 60013785A JP 1378585 A JP1378585 A JP 1378585A JP S61172534 A JPS61172534 A JP S61172534A
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- insertion length
- proximity switch
- length
- length detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「技術分野」
本発明は、内視鏡の体内挿入部が体腔内に挿入された長
さを検知する体内挿入長検知装置に関する。DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an insertion length detection device for detecting the length of an endoscope inserted into a body cavity.
「従来技術およびその問題点」
内視鏡の体内挿入部には一般に、その外周に先端からの
長さを表示する目盛が付されていて、この目盛を読むこ
とにより、体内挿入長を知ることができる。この体内挿
入部外周の目盛による挿入長の検知は、内視鏡を術者単
独で操作する場合には、操作部を操作する術者が体腔へ
の入口部に体を移動させて行なわなければならないため
、検査時間が長くなり、また挿入長を確認するには、接
限部より眼を離さなければならないので、その間に内視
鏡の移動が生じる可能性があり、挿入長の正確な検知に
欠けるおそれがある。また検査の際、介助者がつく場合
には、このような問題はないが、挿入長の確認のために
、介助者に距離の確認をしなければならず、この隙間違
いが生じる可能性があり、またこのやりとりが患者に不
安感を与えて、患者を余計に緊張させる結果となる。"Prior Art and its Problems" Generally, the body-inserted part of an endoscope has a scale on its outer periphery that indicates the length from the tip, and by reading this scale, the body-insertion length can be determined. I can do it. If the endoscope is operated by the operator alone, the insertion length can be detected using the scale on the outer periphery of the body insertion part, unless the operator who operates the operation part moves his or her body to the entrance to the body cavity. This increases the examination time, and in order to check the insertion length, you must take your eyes away from the receptacle, which may cause the endoscope to move during this time, making it difficult to accurately detect the insertion length. There is a risk that it may be lacking. Additionally, if a helper is present during the examination, this problem will not occur, but in order to confirm the insertion length, the helper must confirm the distance, and there is a possibility that this difference in gap may occur. In addition, this interaction gives the patient a sense of anxiety and makes him/her even more nervous.
「発明の目的」
本発明は、このような従来装置についての問題点を解消
し、体内挿入部の体内への挿入長を介助者や特別な労力
を要することなく、正確に検知できる装置を得ることを
目的とする。``Object of the Invention'' The present invention solves the problems with conventional devices, and provides a device that can accurately detect the insertion length of the body insertion part into the body without requiring an assistant or special effort. The purpose is to
「発明の概要」
本発明は、近接スイッチとその作動部材を用いて挿入長
を検知するという発想に基づいてなされたもので、体内
挿入部内に、近接スイッチ作動部材を一定間隔で設ける
一方、体内挿入部の外周に、挿入長検出リングを移動可
能に嵌め、この挿入長検出リング内に、近接スイッチ作
動部材によりオンオフして、該挿入長検出リングの体内
挿入部先端からの移動距離を検出する近接スイッチを設
けたことを特徴としている。近接スイッチ作動部材は、
近接スイッチの種類に応じ、磁石や金属から構成するこ
とができる。そしてこの近接スイッチ作動部材を鉗子チ
ューブ内に挿入可能な挿入長検出可撓体に設ければ、内
視鏡自体には、改変を加えることなく、体内挿入長を検
出できる。"Summary of the Invention" The present invention was made based on the idea of detecting the insertion length using a proximity switch and its actuating member. An insertion length detection ring is movably fitted around the outer periphery of the insertion section, and a proximity switch operating member is turned on and off within the insertion length detection ring to detect the distance traveled by the insertion length detection ring from the tip of the insertion section. It is characterized by the provision of a proximity switch. The proximity switch actuating member is
Depending on the type of proximity switch, it can be constructed from magnets or metal. If this proximity switch actuating member is provided on an insertion length detection flexible body that can be inserted into a forceps tube, the insertion length into the body can be detected without making any modification to the endoscope itself.
「発明の実施例」
以下図示実施例について本発明を説明する。この実施例
は、内視鏡自体には改変を加えることなく、挿入長を検
出できるようにした実施例で、内視鏡１１の鉗子チュー
ブ１２内に、第２図に単体形状を示す挿入長検出可撓体
１３を挿入するようにしている。この挿入長検出可撓体
１３は、鉗子口１４への挿入固定部１５と可撓ワイヤ体
１６とからなり、この可撓ワイヤ体１６に、一定間隔（
例えば１ｃｍ間隔）で近接スイッチの作動部材である磁
石１７が固定されている。可撓ワイヤ体１６はねじ部１
８で挿入固定部１５に螺合しており、つまみ１９でこれ
を回転させることにより、挿入固定部１５からの突出長
を調整することができる。"Embodiments of the Invention" The present invention will be described below with reference to illustrated embodiments. This embodiment is an embodiment in which the insertion length can be detected without making any modification to the endoscope itself. A detection flexible body 13 is inserted. This insertion length detection flexible body 13 consists of an insertion fixing part 15 into the forceps port 14 and a flexible wire body 16.
Magnets 17, which are actuating members of the proximity switch, are fixed at intervals of 1 cm, for example. The flexible wire body 16 has a threaded portion 1
8 is screwed into the insertion fixing part 15, and by rotating this with a knob 19, the length of protrusion from the insertion fixing part 15 can be adjusted.
鉗子チューブ１２はその後端が操作部２０の鉗子口１４
に接続され、先端は体内挿入部２１を通って該体内挿入
部２１の先端に開口している。The forceps tube 12 has a forceps port 14 with an operating section 20 at its rear end.
The distal end passes through the intracorporeal insertion section 21 and opens at the distal end of the intracorporeal insertion section 21.
内視鏡１１にはイメージファイバ２２）接眼レンズ２３
等の他の周知の要素が内蔵されている。The endoscope 11 includes an image fiber 22) and an eyepiece 23.
Other well-known elements such as
体内挿入部２１の外周には、挿入長検出リング３０が着
脱および移動自在に嵌まっている。この挿入長検出リン
グ３０は体内挿入部２１との間に適当な摩擦力が働くよ
うにすることが望ましい。An insertion length detection ring 30 is fitted to the outer periphery of the body insertion portion 21 in a detachable and movable manner. It is desirable that an appropriate frictional force be exerted between the insertion length detection ring 30 and the body insertion portion 21.
挿入長検出リング３０内には、軸方向位置を異ならせて
２つの磁気型近接スイッチ３１．３２が設けられている
。この近接スイッチ３１．３２はそれぞれ、体内挿入部
２１内に挿入した挿入長検出可撓体１３の磁石１７外周
を通過する度にオンオフしてパルスを発生し、このパル
スは信号線３３を介して挿入長表示器３５に入力される
。Two magnetic proximity switches 31 and 32 are provided in the insertion length detection ring 30 at different axial positions. Each of the proximity switches 31 and 32 turns on and off to generate a pulse each time it passes the outer circumference of the magnet 17 of the insertion length detection flexible body 13 inserted into the body insertion part 21, and this pulse is transmitted via the signal line 33. This is input to the insertion length display 35.
第４図は、挿入長表示器３５内の信号処理回路を示すも
ので、近接スイッチ３１．３２からの信号は増幅回路３
６．３７で増幅されて方向弁別回路３８に入力され、方
向弁別回路３８によって演算される体内挿入部２１の先
端部からの挿入長検出リング３０の移動量がカウンタ３
９に表示される。なお第１図の符号２７は、体内挿入部
２１の外周に合わせて付した挿入長目盛である。FIG. 4 shows the signal processing circuit in the insertion length indicator 35, and the signals from the proximity switches 31 and 32 are transmitted to the amplifier circuit 3.
6.37 is amplified and input to the direction discrimination circuit 38, and the amount of movement of the insertion length detection ring 30 from the distal end of the body insertion part 21 calculated by the direction discrimination circuit 38 is calculated by the counter 3.
9 will be displayed. Note that the reference numeral 27 in FIG. 1 is an insertion length scale attached to the outer periphery of the intracorporeal insertion portion 21.
上記構成の本装置は、第１図のように挿入長検出可撓体
１３を鉗子口１４から鉗子チューブ１２内に挿入して挿
入固定部１５を鉗子口１４に固定し、体内挿入部２１の
先端部外周に挿入長検出リング３０を嵌めてセットする
。この状態において１体内挿入部２１先端を体腔内に挿
入すると、挿入長（深さ）が長くなるにつれて、挿入長
検出リング３０は体内挿入部２１に対しスライドする。As shown in FIG. The insertion length detection ring 30 is fitted and set on the outer periphery of the tip. When the distal end of the body insertion section 21 is inserted into the body cavity in this state, the insertion length detection ring 30 slides with respect to the body insertion section 21 as the insertion length (depth) becomes longer.
第５図は被検者の口から体内挿入部２１を挿入した状態
、第６図は同肛門から体内挿入部２１を挿入した状態を
示すもので、挿入長検出リング３０は口および肛門にそ
れぞれ接し、体内挿入部２１の体腔内への挿入につれて
、該体内挿入部２１に対して相対移動する。FIG. 5 shows a state in which the body insertion part 21 is inserted from the mouth of the subject, and FIG. 6 shows a state in which the body insertion part 21 is inserted from the anus, and the insertion length detection ring 30 is inserted into the mouth and anus, respectively. As the body insertion part 21 is inserted into the body cavity, the body insertion part 21 moves relative to the body insertion part 21.
この挿入の過程において、挿入長検出リング３０内の近
接スイッチ３１と３２は１体内挿入部２１内に固定状態
にある挿入長検出可撓体１３の磁石１７により、連続的
にオンオフされ、そのパルスが３６．３７で増幅された
後、方向弁別回路３８に入力される。方向弁別回路３８
は、近接スイッチ３１で発生するパルスと、近接スイッ
チ３２で発生するパルスから挿入長検出リング３０の体
内挿入部２１の先端からの移動量（距離）を検出し、こ
れをカウンタ３９に表示する。方向弁別回路３８が行な
う演算は、近接スイッチ３１と３２で発生するパルスの
π１４の位相差から、周知の手順により、挿入長検出リ
ング３０の移動方向を検出し２体内挿入部２１の先端か
らの移動量を ゛検知するものである。この実施例では
、磁石１７の設置間隔がｌｃ＋ｓであるので、カウンタ
３９に表示される挿入深さも１０００単位となる。した
がって術者は、挿入長表示器３５のカウンタ３９を見る
ことで、体内挿入部２１の体腔内への挿入長を知ること
ができる。During this insertion process, the proximity switches 31 and 32 in the insertion length detection ring 30 are continuously turned on and off by the magnet 17 of the insertion length detection flexible body 13 fixed in the body insertion part 21, and the pulse After being amplified by 36.37, it is input to the direction discrimination circuit 38. Direction discrimination circuit 38
detects the amount of movement (distance) of the insertion length detection ring 30 from the tip of the body insertion part 21 from the pulses generated by the proximity switch 31 and the pulses generated by the proximity switch 32, and displays this on the counter 39. The calculation performed by the direction discrimination circuit 38 is based on the phase difference of π14 between the pulses generated by the proximity switches 31 and 32, and detects the moving direction of the insertion length detection ring 30 using a well-known procedure. It detects the amount of movement. In this embodiment, since the installation interval of the magnets 17 is lc+s, the insertion depth displayed on the counter 39 is also 1000 units. Therefore, the operator can know the insertion length of the body insertion section 21 into the body cavity by looking at the counter 39 of the insertion length display 35.
また上記実施例では、磁石１７が鉗子チューブ１２に対
し挿脱可能な挿入長検出可撓体１３に設けられているか
ら、内視鏡１１には特別な加工や改良を加えることなく
、挿入長検出可撓体１３と挿入長検出リング３０を内視
鏡１１のオプションとして備えることで挿入長を検知で
きるという利点がある。Further, in the above embodiment, since the magnet 17 is provided on the insertion length detection flexible body 13 that can be inserted into and removed from the forceps tube 12, the insertion length can be detected without any special processing or improvement on the endoscope 11. There is an advantage that the insertion length can be detected by providing the detection flexible body 13 and the insertion length detection ring 30 as options for the endoscope 11.
なお上記実施例では、近接スイッチとして磁気型の近接
スイッチ３１．３２を示し、その作動部材として磁石１
７を示したが、近接スイッチは非接触でオンオフするス
イッチであれば、他の近接スイッチ、例えば高周波型の
近接スイッチを用いることもできる。この場合、作動部
材は磁石でなく単なる金属で足りる。挿入長検出可撓体
１３にこの作動部材を一定間隔で設ける場合、可撓ワイ
ヤ体１６は非金属材料から形成する。In the above embodiment, magnetic type proximity switches 31 and 32 are shown as the proximity switches, and the magnet 1 is used as the operating member.
7 is shown, but other proximity switches such as high-frequency proximity switches may be used as long as the proximity switch turns on and off without contact. In this case, the actuating member may be a mere metal instead of a magnet. When the insertion length detection flexible body 13 is provided with this actuating member at regular intervals, the flexible wire body 16 is formed from a non-metallic material.
「発明の効果」
以上のように木発明は、体内挿入部の外周に嵌めた挿入
長検出リングの該挿入部先端からの移動量を、挿入長検
出リング内の近接スイッチと体内挿入部内の近接スイッ
チ作動部材の作用により、正確に検出することができる
。このため１）正確な挿入長が測定できるため誤診を排
除できる。``Effects of the Invention'' As described above, the present invention is capable of determining the amount of movement of the insertion length detection ring fitted around the outer periphery of the body insertion part from the tip of the insertion part by the proximity switch in the insertion length detection ring and the proximity switch in the body insertion part. Accurate detection can be achieved by the action of the switch actuating member. Therefore, 1) misdiagnosis can be eliminated because accurate insertion length can be measured.
２）内視鏡の体内挿入時間を短縮でき、患者の負担を軽
減できる。2) The time required to insert the endoscope into the body can be shortened, reducing the burden on the patient.
３）術者が一人で検査する場合にも、挿入長表示器のカ
ウンタを目視することで、容易に挿入長を知ることがで
き、介助者を要しないので、患者に不安感を与えない。3) Even when the operator performs the examination alone, the insertion length can be easily determined by visually checking the counter of the insertion length display, and since an assistant is not required, the patient does not feel anxious.
４）内視鏡検査の技術習得の際、体内挿入長を知ること
は重要な要素であるが、これを正確に知ることができる
ため、技術を迅速に習得させるのに効果的である。4) Knowing the length of insertion into the body is an important element when learning endoscopy techniques, and since this can be accurately known, it is effective for quickly acquiring techniques.
等の効果が得られる。Effects such as this can be obtained.
また近接スイッチ作動部材を鉗子チューブに対し挿脱可
能な挿入長検出可撓体に設けることにより、鉗子チュー
ブを有する従来の内視鏡をそのまま利用することができ
るため、僅かなコスト上昇で挿入長の検知ができ、また
漏れ電流が患者に流れることがないので検査の際の危険
もない等の優れた効果が得られる。In addition, by providing the proximity switch actuating member on the insertion length detection flexible body that can be inserted into and removed from the forceps tube, conventional endoscopes with forceps tubes can be used as they are, so the insertion length can be adjusted with only a slight increase in cost. can be detected, and since no leakage current flows to the patient, excellent effects such as no danger during examination can be obtained.
第１図は木発明の内視鏡の体内挿入長の検知装置の実施
例を示す要部の断面図、第２図は一部を断面として示す
、挿入長検出可撓体単体の正面図、第３図は体内挿入部
に挿入長検出リングを嵌めた内視鏡の全体の正面図、第
４図は挿入長表示器内の信号処理回路の例を示すブロッ
ク図、第５図、第６図は体内挿入部の体腔内への挿入状
態を示す要部の正面図である。
１１・・・内視鏡、１２・・・鉗子チューブ、１３・・
・挿入長検出可撓体、１４・・・鉗子口、１５・・・挿
入固定部、１６・・・可撓ワイヤ体、１７・・・近接ス
イッチ作動部材、２１・・・体内挿入部、３０・・・挿
入長検出リング、３１．３２・・・近接スイッチ、３５
・・・挿入長表示器、３８・・・方向弁別回路、３９・
・・カウンタ。
特許出願人 旭光学工業株式会社
同代理人 三 浦 邦 夫
同 松井 茂
第６図FIG. 1 is a cross-sectional view of the main parts of an embodiment of the device for detecting the insertion length of an endoscope in the body according to the invention; FIG. 2 is a front view of the flexible body for detecting insertion length, partially shown in cross section; Fig. 3 is a front view of the entire endoscope with an insertion length detection ring fitted into the insertion section, Fig. 4 is a block diagram showing an example of the signal processing circuit in the insertion length indicator, Figs. The figure is a front view of the main parts showing the insertion state of the body insertion part into the body cavity. 11... Endoscope, 12... Forceps tube, 13...
- Insertion length detection flexible body, 14... Forceps port, 15... Insertion fixing part, 16... Flexible wire body, 17... Proximity switch actuating member, 21... Body insertion part, 30 ...insertion length detection ring, 31.32...proximity switch, 35
...Insertion length indicator, 38...Direction discrimination circuit, 39.
··counter. Patent applicant Asahi Optical Co., Ltd. Agent Kunio Miura Shigeru Matsui Figure 6
Claims (5)
を一定間隔で設けるとともに、この体内挿入部の外周に
、挿入長検出リングを移動可能に嵌め、この挿入長検出
リング内に、上記近接スイッチ作動部材によりオンオフ
して、該挿入長検出リングの体内挿入部先端からの移動
距離を検出する近接スイッチを設けたことを特徴とする
内視鏡の体内挿入長検知装置。(1) Proximity switch actuating members are provided at regular intervals in the body insertion part of the endoscope, and an insertion length detection ring is movably fitted around the outer periphery of this body insertion part, and the above-mentioned 1. A device for detecting the insertion length of an endoscope into the body, comprising a proximity switch that is turned on and off by a proximity switch actuating member to detect the moving distance of the insertion length detection ring from the distal end of the insertion section.
動部材は、内視鏡に備えられた鉗子チューブ内に挿入可
能な挿入長検出可撓体に設けられている内視鏡の体内挿
入長検知装置。(2) In claim 1, the proximity switch actuating member is provided on an insertion length detection flexible body that can be inserted into a forceps tube provided in the endoscope. Detection device.
体は、内視鏡の鉗子口に着脱される挿入固定部と、この
挿入固定部からの突出長を調節可能な可撓ワイヤ体から
構成されている内視鏡の体内挿入長検知装置。(3) In claim 2, the insertion length detection flexible body includes an insertion fixing section that is attached to and detached from the forceps port of an endoscope, and a flexible wire that can adjust the protruding length from the insertion fixing section. A device for detecting the length of an endoscope inserted into the body.
その作動部材は、磁気型近接スイッチと磁石の組み合せ
からなっている内視鏡の体内挿入長検知装置。(4) The device for detecting the insertion length of an endoscope in the body according to claim 1, wherein the proximity switch and its actuating member are a combination of a magnetic proximity switch and a magnet.
接スイッチとその作動部材は、高周波型近接スイッチと
金属の組合せからなっている内視鏡の体内挿入長検知装
置。(5) The device for detecting the insertion length of an endoscope in the body according to claim 1 or 2, wherein the proximity switch and its actuating member are a combination of a high-frequency proximity switch and metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60013785A JPS61172534A (en) | 1985-01-28 | 1985-01-28 | Body insert length detector of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60013785A JPS61172534A (en) | 1985-01-28 | 1985-01-28 | Body insert length detector of endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61172534A true JPS61172534A (en) | 1986-08-04 |
| JPH0435171B2 JPH0435171B2 (en) | 1992-06-10 |
Family
ID=11842903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60013785A Granted JPS61172534A (en) | 1985-01-28 | 1985-01-28 | Body insert length detector of endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61172534A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03295534A (en) * | 1990-04-13 | 1991-12-26 | Olympus Optical Co Ltd | Detecting device for inserted state of endoscope |
| JP2000175862A (en) * | 1998-12-17 | 2000-06-27 | Olympus Optical Co Ltd | Endoscope inserted shape detecting device |
| JP2009240405A (en) * | 2008-03-28 | 2009-10-22 | Olympus Medical Systems Corp | Endoscope system |
-
1985
- 1985-01-28 JP JP60013785A patent/JPS61172534A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03295534A (en) * | 1990-04-13 | 1991-12-26 | Olympus Optical Co Ltd | Detecting device for inserted state of endoscope |
| JP2000175862A (en) * | 1998-12-17 | 2000-06-27 | Olympus Optical Co Ltd | Endoscope inserted shape detecting device |
| JP2009240405A (en) * | 2008-03-28 | 2009-10-22 | Olympus Medical Systems Corp | Endoscope system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435171B2 (en) | 1992-06-10 |
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