JPS622807B2 - - Google Patents
Info
- Publication number
- JPS622807B2 JPS622807B2 JP54064670A JP6467079A JPS622807B2 JP S622807 B2 JPS622807 B2 JP S622807B2 JP 54064670 A JP54064670 A JP 54064670A JP 6467079 A JP6467079 A JP 6467079A JP S622807 B2 JPS622807 B2 JP S622807B2
- Authority
- JP
- Japan
- Prior art keywords
- curved
- endoscope
- detection means
- curved part
- curved portion
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 28
- 210000000056 organ Anatomy 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000002784 stomach Anatomy 0.000 description 13
- 210000003238 esophagus Anatomy 0.000 description 9
- 210000002318 cardia Anatomy 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 210000001187 pylorus Anatomy 0.000 description 1
Landscapes
- Endoscopes (AREA)
Description
【発明の詳細な説明】
この発明は、体腔内の観察、検査等を行う内視
鏡に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope for observing, testing, etc. inside a body cavity.
一般に内視鏡による体腔内の臓器、たとえば胃
の検査にあつては、先端構成部とともに彎曲部を
胃内に挿入し、ついで操作ノブを操作して彎曲部
を彎曲移動させて、先端構成部を胃内の検査部位
に位置決めする。こののち、固定レバーを固定操
作して彎曲部の彎曲状態を継続保持し、接眼部か
ら胃内を目視観察するようになつている。そし
て、検査終了後内視鏡抜去の際は、固定レバーを
解除操作して彎曲部の復元を自由にし、この状態
で彎曲部とともに先端構成部を胃内から抜去する
ようになつている。 Generally, when examining organs in a body cavity, such as the stomach, using an endoscope, the curved part is inserted into the stomach together with the distal end component, and then the operating knob is operated to move the curved part to remove the distal end component. is positioned at the test site within the stomach. Thereafter, the fixing lever is fixedly operated to maintain the curved state of the curved portion, and the inside of the stomach is visually observed from the eyepiece. When the endoscope is removed after the end of the examination, the fixed lever is released to allow the curved portion to restore freely, and in this state, the tip component and the curved portion are removed from the stomach.
しかしながら、応々にして固定レバーの解除操
作を忘れたまま内視鏡の抜去作業を行つてしまう
場合があり、このような場合広い空間を持つたと
えば、胃内から狭い空間を持つ食道に彎曲保持さ
れたままの状態で彎曲部が移動するため、彎曲部
が食道の臓器壁に衝突して、受検者に不必要な苦
痛を与えるという不具合が生じる。 However, there are cases where the user forgets to release the fixing lever when removing the endoscope. Since the curved part moves while the test subject remains in the same position, the curved part collides with the organ wall of the esophagus, causing unnecessary pain to the patient.
従来、この点を改善した例はなく、すべて検査
者の注意力に頼つているのが実情である。 Until now, there has been no example of improving this point, and the reality is that everything depends on the attentiveness of the inspector.
この発明は上記事情に着目してなされたもの
で、その目的とするところは、彎曲部の近傍の連
結部外周面に臓器壁との距離を検出する複数の検
出手段を設け、この検出手段の出力の差にもとづ
いて彎曲部固定手段により固定された彎曲部の固
定状態を強制的に解除する彎曲部固定解除手段を
設けて、検査者の不注意による彎曲部の解除忘れ
を自動的に検知し、受検者に不必要な苦痛を与え
ることなく、安全に抜去作業を行なえるようにし
た内視鏡を提供しようとするものである。 This invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a plurality of detection means for detecting the distance to the organ wall on the outer peripheral surface of the connecting part near the curved part, and to detect the distance from the organ wall. A curved part fixing release means for forcibly releasing the fixed state of the curved part fixed by the curved part fixing means based on the difference in output is provided to automatically detect if the inspector forgets to release the curved part due to carelessness. The present invention aims to provide an endoscope that can be safely removed without causing unnecessary pain to the examinee.
以下、この発明の一実施例を図面を参照して説
明する。第１図中１は内視鏡の操作部で、この操
作部には可撓性の連結部２が接続され、さらにこ
の連結部２には先端に先端構成部３を備えた彎曲
部４が設けられている。また、操作部１には、接
眼部５が設けられ、連結部２および彎曲部４内に
内装された図示しない像伝送用光学繊維束を介し
て、接眼部５から先端構成部３の前方あるいは側
方を目視できるようになつている。さらに操作部
１には、側面に彎曲部４を必要に応じて彎曲変形
させる回転摘み６が設けられ、端面にその回転摘
み６により彎曲変形した彎曲部４をそのままの状
態で保持させる指令を与える開閉スイツチ７が設
けられている。そして、彎曲部４を彎曲変形させ
る機構としては、第２図に示すような構造のもの
が用いられている。すなわち、図中８は操作部１
の側壁で、この側壁８に回転軸９が回転自在に嵌
挿され、その回転軸９の上部嵌挿端に上述した回
転摘み６が固着され、下部嵌挿端にプーリー１０
が一体に取り付けられている。そして、このプー
リー１０には連結部２内を経て彎曲部４に接続さ
れた牽引ワイヤ１１の終端が固着されており、回
転摘み６を回転操作することにより、その回転変
位に応じて牽引ワイヤ１１を介して彎曲部４を適
宜に彎曲変形させることができる。これら、回転
摘み６、回転軸９、プーリー１０、牽引ワイヤ１
１により彎曲操作手段１９が形成される。また、
彎曲変形した彎曲部４を保持させる機構として
は、第２図に示すような構造のものが用いられて
いる。すなわち、図中１２は側壁８の裏面に取着
されたソレノイド支持台で、このソレノイド支持
台１２には環状のコイル部１３が取着され、さら
にコア１４がコイル部１３の中空部を経て往復動
自在に嵌挿され、ソレノイド１５を形成してい
る。そして、コア１４の嵌挿端側には、皿状ばね
１６が巻装され、さらにフエルト台１７が摺動自
在に嵌挿されている。このフエルト台１７は皿状
ばね１６の弾性力によつて軸心方向に付勢されて
いて、コア１４の嵌挿端部に取り付けられたスト
ツパ２２により支持されている。また、フエルト
台１７には環状に形成されたフエルト１８が取着
されており、上記スイツチ７をONすることによ
つて、ソレノイド１５が励磁され、コア１４がフ
エルト台１７とともに矢印方向へ吸引されてフエ
ルト１８をプーリー１０の端面に押し付けるよう
になつている。このコア１４の押し付け力および
皿状ばね１６の弾性力により、プーリー１０に制
動が加わり、任意の位置で彎曲変形した彎曲部４
をそのままの状態で保持することができる。な
お、２０はコア１４の嵌挿端に形成された案内突
起で、この案内突起２０はソレノイド１５の励磁
に伴い、回転軸９の下部嵌挿端に形成された案内
凹部２１に摺動自在に嵌挿され、フエルト１８と
プーリー１０の端面との当接面の位置を常に一定
に保持している。これら、ソレノイド１５、皿状
ばね１６、フエルト台１７、ストツパ２２、フエ
ルト１８により彎曲部固定手段２３が形成され
る。 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 in FIG. 1 denotes an operating section of the endoscope. A flexible connecting section 2 is connected to this operating section, and a curved section 4 having a distal end forming section 3 at its tip is connected to this operating section. It is provided. The operation section 1 is also provided with an eyepiece section 5, and the tip component 3 is connected to the eyepiece section 5 via an image transmission optical fiber bundle (not shown) housed in the connecting section 2 and the curved section 4. It allows you to visually see the front or sides. Further, the operating portion 1 is provided with a rotary knob 6 on the side surface that deforms the curved portion 4 in a curved manner as necessary, and the rotary knob 6 on the end surface gives a command to maintain the curved portion 4 that has been deformed in a curved state. An open/close switch 7 is provided. As a mechanism for bending and deforming the curved portion 4, a mechanism having a structure as shown in FIG. 2 is used. In other words, 8 in the figure is the operating section 1.
A rotating shaft 9 is rotatably fitted into the side wall 8, the above-mentioned rotary knob 6 is fixed to the upper fitting end of the rotating shaft 9, and a pulley 10 is fixed to the lower fitting end of the rotating shaft 9.
is attached as one piece. The terminal end of a traction wire 11 connected to the curved portion 4 through the inside of the connecting portion 2 is fixed to this pulley 10, and by rotating the rotary knob 6, the traction wire 11 is adjusted according to the rotational displacement. The curved portion 4 can be suitably deformed into a curved shape. These, rotation knob 6, rotation shaft 9, pulley 10, traction wire 1
1 forms a bending operation means 19. Also,
As a mechanism for holding the curved portion 4 which has undergone a curved deformation, a structure as shown in FIG. 2 is used. That is, in the figure, reference numeral 12 denotes a solenoid support base attached to the back surface of the side wall 8. An annular coil portion 13 is attached to this solenoid support base 12, and a core 14 reciprocates through the hollow portion of the coil portion 13. The solenoid 15 is movably fitted and inserted. A disk-shaped spring 16 is wound around the insertion end side of the core 14, and a felt base 17 is slidably inserted therein. This felt stand 17 is urged in the axial direction by the elastic force of the disc-shaped spring 16, and is supported by a stopper 22 attached to the insertion end of the core 14. Further, a ring-shaped felt 18 is attached to the felt stand 17, and by turning on the switch 7, the solenoid 15 is energized, and the core 14 is attracted together with the felt stand 17 in the direction of the arrow. The felt 18 is pressed against the end face of the pulley 10. Due to the pressing force of the core 14 and the elastic force of the disc spring 16, braking is applied to the pulley 10, and the curved portion 4 is deformed in a curved position at an arbitrary position.
can be kept as is. Reference numeral 20 denotes a guide protrusion formed at the insertion end of the core 14, and as the solenoid 15 is energized, the guide protrusion 20 can freely slide into a guide recess 21 formed at the lower insertion end of the rotating shaft 9. The position of the contact surface between the felt 18 and the end surface of the pulley 10 is always maintained constant. These solenoid 15, dish-shaped spring 16, felt base 17, stopper 22, and felt 18 form curved portion fixing means 23.
また、連結部２の端部には、臓器壁との距離を
検出するための検出手段２４が軸方向に２個設け
られている。この検出手段２４は第３図に示すよ
うに連結部２の側壁２ａに軸方向に沿つて設けら
れた発光素子２５と受光素子２６とから成り、さ
らにこの各々の発光素子２５と受光素子２６との
周囲に遮光壁２７，２７を設けて形成されてい
る。そして、発光素子２５による臓器壁２８から
の反射光量を受光素子２６にて受光し、その反射
光量の差により臓器壁２８と連結部２との距離が
検出される。すなわち、光量の差が受光素子２６
にて距離として電気量に変換されるからである。
そして、この電気的距離情報は、第４図に示す制
御回路からなる彎曲部固定解除手段２９により距
離判別がなされる。すなわち、彎曲部固定解除手
段２９は、２個の受光素子２６，２６を各々アン
プ３０，３０に接続、さらにアンプ３０，３０を
コンパレータ３１に接続してなるもので、コンパ
レータ３１はコントローラ３２に接続されてい
る。なおコントローラ３２に接続された７は上述
した開閉スイツチであり、また２３は上述した彎
曲部固定手段である。さらに３３は通常時におけ
る使用範囲を示している。そして、受光素子２
６，２６に入力された距離情報は、アンプ３０，
３０にて増幅されたのちコンパレータ３１に入力
され、ここで電気量の差により距離判別がなさ
れ、臓器壁２８と連結部２との距離が短いと判定
された場合には、コントローラ３２へ検出信号が
出力される。そして、コントローラ３２ではこの
検出信号を入力すると、自動的に開閉スイツチ７
および彎曲部固定手段２３のソレノイド１５の励
磁を切り、彎曲部固定手段２３により保持される
彎曲部４の保持状態を強制的に解除するようにな
つている。 Furthermore, two detection means 24 are provided in the axial direction at the end of the connecting portion 2 for detecting the distance to the organ wall. As shown in FIG. 3, this detection means 24 consists of a light-emitting element 25 and a light-receiving element 26 provided along the axial direction on the side wall 2a of the connecting portion 2. It is formed by providing light shielding walls 27, 27 around it. Then, the amount of light reflected from the organ wall 28 by the light emitting element 25 is received by the light receiving element 26, and the distance between the organ wall 28 and the connecting portion 2 is detected based on the difference in the amount of reflected light. In other words, the difference in light amount is
This is because the distance is converted into an amount of electricity at .
Then, this electrical distance information is subjected to distance determination by curved portion fixing release means 29 consisting of a control circuit shown in FIG. That is, the curved portion fixing release means 29 is configured by connecting two light receiving elements 26 and 26 to amplifiers 30 and 30, respectively, and further connecting the amplifiers 30 and 30 to a comparator 31, and the comparator 31 is connected to a controller 32. has been done. Note that 7 connected to the controller 32 is the above-mentioned open/close switch, and 23 is the above-mentioned curved portion fixing means. Further, numeral 33 indicates the range of use in normal times. Then, the light receiving element 2
The distance information input to 6 and 26 is sent to the amplifier 30,
30 and then input to the comparator 31, where the distance is determined based on the difference in electrical quantity. If it is determined that the distance between the organ wall 28 and the connecting portion 2 is short, a detection signal is sent to the controller 32. is output. When the controller 32 receives this detection signal, it automatically switches on/off switch 7.
Then, the excitation of the solenoid 15 of the curved part fixing means 23 is turned off, and the holding state of the curved part 4 held by the curved part fixing means 23 is forcibly released.
しかして、このように構成された内視鏡を用い
て胃内を検査する場合、まず内視鏡の先端構成部
３および彎曲部４を口腔、食道を経て胃内に挿入
する。ついで接眼部５から目視しながら回転摘み
６を回転操作して、彎曲部４を彎曲変形させ、先
端構成部３を検査部位に位置決めする。このの
ち、開閉スイツチ７をONにする。すると、この
開閉スイツチ７のON信号に連動してソレノイド
１５が励磁され、フエルト１８をプーリー１０の
端面に圧接し、プーリー１０に制動をかける。こ
の制動により、彎曲変形した彎曲部４がそのまま
の状態で継続保持される。この状態で胃内の検査
がなされる。そして、内視鏡による検査終了後、
内視鏡を抜去する場合、まず連結部２を本腔内か
ら引き戻す。このとき、発光素子２５からは光が
胃内に照射されており、その胃壁からの反射光量
を受光素子２６にて受光し、胃壁との距離を検出
している。そして、この反射光量は遮光壁２７，
２７により他の検出手段２４から照射された反射
光が遮光されていて、検出精度の妨げになること
はない。 Therefore, when inspecting the inside of the stomach using the endoscope configured as described above, first, the distal end portion 3 and the curved portion 4 of the endoscope are inserted into the stomach through the oral cavity and the esophagus. Then, while viewing visually through the eyepiece 5, the rotary knob 6 is rotated to deform the curved portion 4 into a curved shape, and the distal end component 3 is positioned at the inspection site. After this, turn on the open/close switch 7. Then, the solenoid 15 is energized in conjunction with the ON signal of the open/close switch 7, presses the felt 18 against the end face of the pulley 10, and applies braking to the pulley 10. Due to this braking, the curved portion 4 which has been curved and deformed is maintained in the same state. In this state, an examination of the stomach is performed. After the endoscopic examination,
When removing the endoscope, first pull back the connecting portion 2 from within the main cavity. At this time, light is irradiated into the stomach from the light emitting element 25, and the amount of reflected light from the stomach wall is received by the light receiving element 26 to detect the distance to the stomach wall. The amount of reflected light is determined by the light shielding wall 27,
27 blocks the reflected light emitted from the other detection means 24, so that the detection accuracy is not hindered.
そして、連結部２の引き戻し動作に伴い一方の
受光素子２６が狭い空間を有する食道に至ると、
いままで広い空間を有する胃内での反射光量と食
道部での反射光量とに差が生じ、２個の受光素子
２６，２６に入る光の光量が電気的距離情報とし
てアンプ３０，３０を経て、コンパレータ３１に
入力され、コンパレータ３１にて距離判別がなさ
れる。すなわち、コンパレータ３１にて食道の噴
門部３４の検査がなされる。この噴門部３４の検
出信号が直ちにコントローラ３２に入力され、自
動的に開閉スイツチ７および彎曲部固定手段２３
のソレノイド１５の励磁を切る。すなわち、プー
リー１０とフエルト１８との制動が解除され、彎
曲部４が復元自由の状態になる。こののち、内視
鏡は連結部２の引き戻し動作に伴つて、食道、口
腔を経て体腔外に抜去される。 Then, as one of the light receiving elements 26 reaches the esophagus which has a narrow space due to the pulling back operation of the connecting portion 2,
Until now, there has been a difference between the amount of reflected light in the stomach, which has a large space, and the amount of reflected light in the esophagus, and the amount of light that enters the two light receiving elements 26, 26 is transmitted as electrical distance information via the amplifiers 30, 30. , is input to the comparator 31, and the distance is determined by the comparator 31. That is, the comparator 31 inspects the cardia 34 of the esophagus. This detection signal of the cardia 34 is immediately input to the controller 32, and the opening/closing switch 7 and the curved part fixing means 23 are automatically activated.
Turn off the excitation of solenoid 15. That is, the braking between the pulley 10 and the felt 18 is released, and the curved portion 4 becomes free to restore. Thereafter, as the connecting portion 2 is pulled back, the endoscope is removed out of the body cavity through the esophagus and oral cavity.
このように、発光素子２５と受光素子２６とか
らなる検出手段２４によつて臓器壁２８との距離
を検出し、この検出情報にもとづいて彎曲部固定
解除手段２９にて、彎曲部固定手段２３による彎
曲部４の保持状態を自動的に解除するようにした
から、検査者の不注意による彎曲部４の解除忘れ
を自動的に検知して解除することができ、受検者
に対して不必要な苦痛を与えることがない。しか
も、抜去作業ばかりでなく彎曲部４の彎曲状態を
気にせずに迅速に進めることができ、不慣な検査
者でも非常に扱い易く、内視鏡検査による病変の
早期発見に効果がある。 In this way, the distance to the organ wall 28 is detected by the detecting means 24 consisting of the light emitting element 25 and the light receiving element 26, and based on this detection information, the curved part fixing means 29 is moved by the curved part fixing means 29. Since the holding state of the curved part 4 is automatically released, if the examiner forgets to release the curved part 4 due to carelessness, it can be automatically detected and released, and unnecessary for the test taker. It will not cause any pain. In addition, the removal work can be carried out quickly without worrying about the curvature of the curved portion 4, and it is very easy to handle even for inexperienced examiners, and is effective in early detection of lesions by endoscopic examination.
なお、この発明は上述した実施例に限定される
ものではない。たとえば上記実施例では、検出手
段として発光素子、受光素子を用いて形成した
が、この検出手段を第５図に示すような音圧的検
出機構を用いて形成してもよい。すなわち、図中
４０は発振素子からなる発音体であり、また図中
４１，４１は圧電素子等からなる受音体で、これ
ら発音体４０及び２個の受音体４１，４１を彎曲
部４２近傍の連結部外周面に軸方向に沿つて設
け、発音体４０による臓器壁からの反射音を２個
の受音体４１，４１にて受音して、その各々の受
音体４１，４１の出力差により臓器壁との距離を
検出するようにしても、上記実施例と同様に食道
の噴門部を検出することができるとともに、同様
な効果を得ることができる。 Note that this invention is not limited to the embodiments described above. For example, in the above embodiment, a light emitting element and a light receiving element are used as the detection means, but the detection means may be formed using a sound pressure detection mechanism as shown in FIG. That is, 40 in the figure is a sounding body made of an oscillating element, and 41 and 41 in the figure are sound receiving bodies made of piezoelectric elements, etc. These sounding body 40 and the two sound receiving bodies 41 and 41 are connected to a curved part 42. It is provided along the axial direction on the outer circumferential surface of the connecting part in the vicinity, and the sound reflected from the organ wall by the sounding body 40 is received by two sound receiving bodies 41, 41. Even if the distance to the organ wall is detected based on the output difference, the cardia of the esophagus can be detected in the same way as in the above embodiment, and the same effect can be obtained.
また、さらに検出手段を第６図に示すような流
体圧的検出機構を用いて形成するようにしてもよ
い。すなわち、図中５０は終端に２つの吐出口５
１，５１を備えた気体路で、これら吐出口５１，
５１に連通してバイパス気体路５２が形成されて
いる。そして、このバイパス気体路５２に、中央
部に電気接点５４が取着されたフロート５３が摺
動自在に嵌挿され、常時、電気接点５４は磁石５
５により吸着され、バイパス気体路５２を閉じて
いる。そして、臓器壁５７に一方の吐出口５１が
近接すると、この吐出口５１からの吐出気体圧力
が高まりフロート５３を磁石５５から離間させ、
電気接点５４が矢印方向へ移動する。これによつ
て電気接点５４がそれぞれ独立した接点５６，５
８を閉じて、電気的に臓器壁５７との距離を検出
するようにしても、上記実施例と同様に食道の噴
門部を検出することができるとともに同様な効果
を得ることができる。 Furthermore, the detection means may be formed using a fluid pressure detection mechanism as shown in FIG. That is, 50 in the figure indicates two discharge ports 5 at the end.
1, 51, these discharge ports 51,
A bypass gas passage 52 is formed in communication with 51. A float 53 having an electric contact 54 attached to the center thereof is slidably inserted into the bypass gas path 52, and the electric contact 54 is always connected to the magnet 5.
5 and closes the bypass gas path 52. When one of the discharge ports 51 approaches the organ wall 57, the pressure of the gas discharged from the discharge port 51 increases and the float 53 is separated from the magnet 55.
Electrical contact 54 moves in the direction of the arrow. This allows the electrical contacts 54 to become independent contacts 56, 5.
8 and electrically detect the distance to the organ wall 57, the cardia of the esophagus can be detected in the same manner as in the above embodiment, and the same effect can be obtained.
また、なお上記実施例では、胃内の検査時にお
ける食道の噴門を対象について説明したが、腸内
の検査時における幽門等においても、同様な効果
が得られることはいうまでもない。 Further, in the above embodiments, the cardia of the esophagus was used during examination of the stomach, but it goes without saying that similar effects can be obtained when examining the pylorus, etc. during examination of the intestines.
以上説明したようにこの発明によれば、複数の
検出手段によつて臓器壁との距離を検出し、各検
出手段の出力の差にもとづいて彎曲固定解除手段
にて、彎曲部固定手段による彎曲部の彎曲固定状
態を自動的に解除するようにしたから、検査者の
不注意による彎曲部の解除忘れを自動的に検知し
て解除することができ、受検者に対して不必要な
苦痛を与えることなく、安全に抜去作業を行うこ
とができる。しかも、抜去作業ばかりでなく彎曲
部の彎曲状態を気にせずに迅速に進めることがで
き、不慣な検査者でも非常に扱い易く、検査によ
る病変の早期発見に効果がある。 As explained above, according to the present invention, the distance to the organ wall is detected by a plurality of detection means, and the curvature fixing release means releases the curvature by the curved part fixing means based on the difference in the output of each detection means. Since the fixed state of the curved part is automatically released, if the examiner forgets to release the curved part due to carelessness, it can be automatically detected and released, thereby avoiding unnecessary pain to the test taker. Removal work can be carried out safely without giving anything. In addition, the removal work can be carried out quickly without worrying about the curvature of the curved portion, it is very easy to handle even for inexperienced examiners, and it is effective in early detection of lesions through examination.
第１図はこの発明の一実施例を示す全体斜視
図、第２図はその操作部の一部を示す側断面図、
第３図は検出手段を示す部分側断面図、第４図は
彎曲部固定解除手段を示すブロツク図、第５図お
よび第６図はこの発明のそれぞれ異なる他の実施
例を示す部分側断面図である。
２……連結部、４……彎曲部、５……接眼部、
１９……彎曲操作手段、２３……彎曲部固定手
段、２４……検出手段、２９……彎曲部固定解除
手段。
FIG. 1 is an overall perspective view showing an embodiment of the present invention, FIG. 2 is a side sectional view showing a part of the operating section,
FIG. 3 is a partial side sectional view showing the detection means, FIG. 4 is a block diagram showing the curved part fixing release means, and FIGS. 5 and 6 are partial side sectional views showing other different embodiments of the present invention. It is. 2... Connecting part, 4... Curved part, 5... Eyepiece part,
19... Curved operating means, 23... Curved portion fixing means, 24... Detecting means, 29... Curved portion fixing release means.
Claims (1)
および上記彎曲部を彎曲操作する彎曲操作手段な
らびに、その彎曲部の彎曲状態を固定する彎曲部
固定手段を備えた内視鏡において、上記彎曲部近
傍の連結部外周面であつて上記連結部の軸方向の
異なる位置に臓器壁との距離を検出する複数の検
出手段を設け、この各検出手段の出力の差にもと
づいて、上記彎曲部固定手段により固定された彎
曲部の固定状態を解除する彎曲部固定解除手段を
設けたことを特徴とする内視鏡。 ２ 彎曲部固定手段はスイツチイング操作に連動
するソレノイド機構によつて行ない、ソレノイド
の吸引動作にて彎曲部の彎曲状態を固定するよう
にしたことを特徴とする特許請求の範囲第１項記
載の内視鏡。 ３ 検出手段と彎曲部固定解除手段とはコントロ
ーラを介して電気的に連動し、検出手段からの検
知情報にもとづいて、彎曲部固定手段による彎曲
部の固定状態をコントローラにていかなる場合に
おいても解除するように制御したことを特徴とす
る特許請求の範囲第１項記載の内視鏡。 ４ 検出手段は発光素子と受光素子とからなるこ
とを特徴とする特許請求の範囲第１項記載の内視
鏡。 ５ 検出手段は発音体と複数の発音体とからなる
ことを特徴とする特許請求の範囲第１項記載の内
視鏡。 ６ 検出手段は複数の流体吐出口を設け、その吐
出口の圧力差によつて移動する電気的接点を有す
るフロートにより検出するようにしたことを特徴
とする特許請求の範囲第１項記載の内視鏡。[Scope of Claims] 1. A curved portion at the distal end, an eyepiece portion at the operating portion of the hand portion, a bending operation means for bending the curved portion, and a curved portion fixing means for fixing the curved state of the curved portion. In the endoscope, a plurality of detection means for detecting the distance to the organ wall are provided at different positions in the axial direction of the connection part on the outer peripheral surface of the connection part near the curved part, and the output of each detection means is provided at different positions in the axial direction of the connection part. An endoscope comprising a curved part fixing release means for releasing the fixed state of the curved part fixed by the curved part fixing means based on the difference in the curved part fixing means. 2. The curved portion fixing means is implemented by a solenoid mechanism linked to a switching operation, and the curved state of the curved portion is fixed by the suction operation of the solenoid. Endoscope. 3 The detection means and the curved part fixation release means are electrically linked via the controller, and based on the detection information from the detection means, the controller can release the fixed state of the curved part by the curved part fixation means in any case. The endoscope according to claim 1, characterized in that the endoscope is controlled so as to. 4. The endoscope according to claim 1, wherein the detection means comprises a light emitting element and a light receiving element. 5. The endoscope according to claim 1, wherein the detection means includes a sounding body and a plurality of sounding bodies. 6. The detection means according to claim 1, wherein a plurality of fluid discharge ports are provided, and detection is performed by a float having an electrical contact that moves depending on the pressure difference between the fluid discharge ports. Endoscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6467079A JPS55158025A (en) | 1979-05-25 | 1979-05-25 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6467079A JPS55158025A (en) | 1979-05-25 | 1979-05-25 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55158025A JPS55158025A (en) | 1980-12-09 |
| JPS622807B2 true JPS622807B2 (en) | 1987-01-21 |
Family
ID=13264845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6467079A Granted JPS55158025A (en) | 1979-05-25 | 1979-05-25 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55158025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628453U (en) * | 1992-09-18 | 1994-04-15 | 株式会社日阪製作所 | Valve drive cylinder |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679593B2 (en) * | 1986-07-25 | 1994-10-12 | オリンパス光学工業株式会社 | Endoscopic bending device |
| JPH0732759B2 (en) * | 1991-06-07 | 1995-04-12 | オリンパス光学工業株式会社 | Endoscope device |
| JP4656824B2 (en) * | 2003-08-29 | 2011-03-23 | オリンパス株式会社 | Wireless in-vivo information acquisition device |
-
1979
- 1979-05-25 JP JP6467079A patent/JPS55158025A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0628453U (en) * | 1992-09-18 | 1994-04-15 | 株式会社日阪製作所 | Valve drive cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55158025A (en) | 1980-12-09 |
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