JPS647781B2 - - Google Patents
Info
- Publication number
- JPS647781B2 JPS647781B2 JP56075251A JP7525181A JPS647781B2 JP S647781 B2 JPS647781 B2 JP S647781B2 JP 56075251 A JP56075251 A JP 56075251A JP 7525181 A JP7525181 A JP 7525181A JP S647781 B2 JPS647781 B2 JP S647781B2
- Authority
- JP
- Japan
- Prior art keywords
- treatment instrument
- drum
- endoscope
- treatment
- extraction device
- 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
- 238000011282 treatment Methods 0.000 claims description 74
- 238000003780 insertion Methods 0.000 claims description 41
- 230000037431 insertion Effects 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 14
- 239000000284 extract Substances 0.000 claims 1
- 230000005284 excitation Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00133—Drive units for endoscopic tools inserted through or with the endoscope
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】
この発明は、体腔内に挿入する鉗子等の処置具
を自動的に挿抜するようにした内視鏡に係り、処
置具の最終的挿抜操作に際して駆動機構による処
置への摩擦抵抗を無くすようにした内視鏡に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope that automatically inserts and removes a treatment tool such as forceps to be inserted into a body cavity. This invention relates to an endoscope that eliminates frictional resistance.
従来、内視鏡のチヤンネル内に鉗子等の処置具
を挿入する場合は、術者が処置具のシースを保持
しながら手送り作業でこのチヤンネル内に挿入し
ていた。 Conventionally, when inserting a treatment instrument such as forceps into a channel of an endoscope, an operator manually feeds the instrument while holding the sheath of the instrument.
しかしながら、この挿入作業は非常に手間がか
かる上高度の注意力を要するもので、例えば深部
大腸用の内視鏡では処置具の全長が約２ｍにも達
するため、その挿入作業に多大な手間と注意力を
必要とし生検等の処置作業が極めて面倒であつ
た。 However, this insertion process is very time-consuming and requires a high degree of attention; for example, in the case of an endoscope for deep colon surgery, the total length of the treatment instrument reaches approximately 2 m, so the insertion process requires a great deal of effort and attention. Treatments such as biopsies required careful attention and were extremely troublesome.
一方、処置具の挿入を急ぐあまりシースに不必
要な力が加わつてこれを折損する虞れがあり、
又、観察途中に於いて処置具の挿入手作業をして
いるとその方に注意力がいきすぎて観察対象部位
を見逃し易いという問題があつた。 On the other hand, there is a risk that unnecessary force will be applied to the sheath and break it due to rushing the insertion of the treatment instrument.
Additionally, there is a problem in that when a patient manually inserts a treatment instrument during the observation, the patient becomes too attentive and easily misses the part to be observed.
このような問題を解決するべく、特開昭56−
8028号に係る内視鏡が提供されている。これは、
処置具をモータ駆動により自動的に挿抜する構成
としたもので、従来の内視鏡の問題点を解決する
反面次のような問題点があつた。 In order to solve such problems,
An endoscope according to No. 8028 is provided. this is,
This device has a structure in which the treatment instrument is automatically inserted and removed by motor drive, and although it solves the problems of conventional endoscopes, it also has the following problems.
即ち、上記内視鏡は処置具の挿入に際して術者
が内視鏡を観察しながらモーター駆動により処置
具を挿入し、この処置具の先端が内視鏡先端部か
ら少しだけ突出し観察視野に入つたことを確認し
た上で、術者自ら又は介助者に命じて駆動装置を
手動で停止しなければならない。 That is, when inserting a treatment tool into the endoscope, the operator inserts the treatment tool by driving a motor while observing the endoscope, and the tip of the treatment tool protrudes a little from the tip of the endoscope and enters the observation field. After confirming that the device has been used, the operator must manually stop the drive device or instruct an assistant to stop the drive device.
このような停止操作は、観察に集中している術
者の集中心を散漫にし、又停止操作のタイミング
を逸すると処置具が必要以上送出されて、体腔内
壁を損傷してしまうという問題があつた。又、処
置具を体腔内の目的部位に正確に接近し狙撃する
際、患者の体腔が動いたりして、たとえば自動的
に挿入を停止させるよう構成した制御スイツチ等
では処置具を正確に位置決めできない。このため
最終的段階では、術者自身が直接手動で処置具を
操作し、微妙な挿抜操作を行なわざるを得ない。 Such a stop operation distracts the concentration of the surgeon who is concentrating on observation, and if the timing of the stop operation is missed, the treatment instrument may be sent out more than necessary, causing damage to the inner wall of the body cavity. Ta. Furthermore, when the treatment instrument is accurately approached and aimed at the target site within the body cavity, the patient's body cavity may move, making it impossible to accurately position the treatment instrument using, for example, a control switch configured to automatically stop insertion. . Therefore, in the final stage, the surgeon must manually operate the treatment instrument and perform delicate insertion and removal operations.
しかし、前記した内視鏡では、駆動機構を止め
て処置具を手動で操作する際に、駆動機構の駆動
ローラが処置具を挾持した状態下であるため、駆
動ローラと処置具との摩擦抵抗により手動時の挿
抜操作が非常に重くなり、微妙な操作ができない
という不都合な問題があつた。 However, in the endoscope described above, when the drive mechanism is stopped and the treatment instrument is manually operated, the drive rollers of the drive mechanism are in a state where the treatment instrument is held between them, so there is a frictional resistance between the drive roller and the treatment instrument. This made the manual insertion/removal operation very difficult, which caused the inconvenient problem of not being able to perform delicate operations.
この発明は、これらの事情に鑑みてなされたも
ので、処置具を予め設定した挿入量位置まで自動
的に挿入し、該設定位置で自動的に処置具の挿入
を停止でき、且つこの停止と連動して駆動機構と
処置具との機械的摩擦抵抗を解除して、処置具の
手動による微妙な挿入、抜脱操作ができて目的部
位への狙撃を容易、確実にできるようにした内視
鏡を提供することを目的としている。 This invention has been made in view of these circumstances, and is capable of automatically inserting a treatment instrument to a preset insertion amount position, and automatically stopping the insertion of the treatment instrument at the set position. An endoscopic system that works together to eliminate mechanical friction between the drive mechanism and the treatment tool, allowing delicate manual insertion and removal of the treatment tool, making it easier and more reliable to target the target area. The purpose is to provide a mirror.
前記目的を達成するためこの発明による内視鏡
は、処置具を自動的に挿入抜脱する処置具挿抜装
置を具備した内視鏡において、処置具を挾持しそ
の摩擦抵抗で挿入抜脱する処置具挿抜装置の駆動
部に、駆動部の挾持による摩擦抵抗を解除する解
除機構を連設し、処置具チヤンネルの先端近傍に
は処置具を検出する検出センサーを配設し、この
検出センサーの出力により前記駆動部及び解除機
構を駆動停止制御するように構成している。 In order to achieve the above object, the endoscope according to the present invention is an endoscope equipped with a treatment instrument insertion/extraction device that automatically inserts and withdraws a treatment instrument. A release mechanism that releases the frictional resistance caused by clamping the drive unit is connected to the drive unit of the instrument insertion/extraction device, and a detection sensor that detects the treatment instrument is installed near the tip of the treatment instrument channel, and the output of this detection sensor is The drive unit and the release mechanism are configured to be controlled to stop driving.
以上図面を参照してこの発明を具体的に説明す
る。第１図乃至第６図は、本発明の第一実施例を
示すものである。内視鏡１は、操作部２と挿入部
３とから成り、操作部２には処置具挿入口４を設
けてあつて、この処置具挿入口４は操作部２に内
蔵された後述の処置具挿抜装置５を介して処置具
チヤンネル６の後端に連通してある。この処置具
チヤンネル６は、操作部２及び挿入部３内を貫通
して内視鏡先端部７の処置具口８に達し、又後端
にはテーパー状の案内口を有する案内部９を配設
してある。この案内部９と前記処置具挿入口４と
は同一軸上に位置し、この案内部９には体腔内か
らの体液等の逆流を防止するために、ゴム等の弾
性材から成る逆止弁１０を配設してある。又、処
置具挿抜装置５はマイクロモータ１１の駆動ギヤ
１２に第１ドラム１３を有する第１従動ギヤ１４
を噛合させ、この第１従動ギヤ１４に、第２ドラ
ム１５を有する第２従動ギヤ１６を噛合して構成
され、この第２ドラム１５及び第２従動ギヤ１６
は、回動自在に配設したドラムホルダー１７に枢
着してある。 The present invention will be specifically described with reference to the drawings. 1 to 6 show a first embodiment of the present invention. The endoscope 1 consists of an operating section 2 and an insertion section 3, and the operating section 2 is provided with a treatment instrument insertion port 4. It communicates with the rear end of the treatment instrument channel 6 via the instrument insertion/extraction device 5 . The treatment instrument channel 6 penetrates through the operation section 2 and the insertion section 3 to reach the treatment instrument port 8 of the endoscope distal end 7, and is provided with a guide section 9 having a tapered guide port at the rear end. It has been set up. This guide part 9 and the treatment instrument insertion port 4 are located on the same axis, and this guide part 9 has a check valve made of an elastic material such as rubber to prevent backflow of body fluids etc. from inside the body cavity. 10 are arranged. Further, the treatment instrument insertion/extraction device 5 includes a first driven gear 14 having a first drum 13 in the drive gear 12 of the micromotor 11.
A second driven gear 16 having a second drum 15 is meshed with the first driven gear 14, and the second driven gear 16 having a second drum 15 is in mesh with the first driven gear 14.
is pivotally connected to a rotatably arranged drum holder 17.
第１ドラム１３と第２ドラム１５は、軟質の合
成ゴム等の弾性材料により形成されており、互い
のローラ面を密着乃至圧接状態で配設し、夫々が
弾性変形して処置具１８のシース１９に密着する
ようになつている。更に、第１及び第２ドラム１
３，１５の接合位置は、処置具挿入口４及び処置
具チヤンネル６の案内部９と同一軸上に設定して
ある。そして、鉗子等の処置具１８は、操作部２
の処置具挿入口４から挿抜装置５の第１ドラム１
３及び第２ドラム１５の間を経て案内部９から処
置具チヤンネル６内に挿入されるようになつてい
る。 The first drum 13 and the second drum 15 are made of an elastic material such as soft synthetic rubber, and are disposed with their roller surfaces in close or pressure contact with each other, so that each drum is elastically deformed to form a sheath of the treatment tool 18. 19. Furthermore, the first and second drums 1
3 and 15 are set on the same axis as the treatment instrument insertion port 4 and the guide portion 9 of the treatment instrument channel 6. The treatment tool 18 such as forceps is then inserted into the operating section 2.
The first drum 1 of the insertion/extraction device 5 from the treatment instrument insertion port 4 of
3 and the second drum 15, and is inserted into the treatment instrument channel 6 from the guide section 9.
一方、解除機構は、ロータリーソレノイド２０
及びこれに連結したレバー２１から成り、レバー
２１を前記ドラムホルダー１７の端部に係合して
あり、後述の如くロータリーソレノイド２０が励
磁されて作動すると、レバー２１が回動して、ド
ラムホルダー１７を第１ドラム１３の方に押しつ
け第１ドラム１３と第２ドラム１５を密着乃至圧
接し、ロータリーソレノイド２０が非励磁の時
は、反対方向に回動しレバー２１と共にドラムホ
ルダー１７を第１ドラム１３から離し、第２ドラ
ム１５と第１ドラム１３との間に空隙を形成する
ようにしてある。又、内視鏡操作部２には、挿抜
装置５のマイクロモータ１１を正転させる正転用
制御スイツチ２２と、これを逆転させる逆転用制
御スイツチ２３を配設してあり、これらのスイツ
チ２２，２３は夫々スプリング２４により自動復
帰型の常開接点方式となつている。尚、マイクロ
モータ１１及び上記両スイツチ２２，２３に接続
された電線２５は、操作部２に連結されたユニバ
ーサルコード２６を介して電源装置２７に接続さ
れている。一方、内視鏡挿入部３の処置具チヤン
ネル６の先端内周面には、処置具１８が接触した
際の微少な押圧力によつて所定値の起電圧を発生
する圧電素子等の検出センサー２８，２９を配設
し、この検出センサー２８，２９の出力部を、前
記操作部２に配設された増幅回路３０及び遅延回
路３１、スイツチング回路３２に電気的に接続し
て検出制御回路３３を構成している。但し、上記
遅延回路３１は、処置具１８の先端を検出センサ
ー２８，２９から第４図中に図示の距離Ｌだけ前
方に移送し、その先端が観察視野に少し入つた処
でマイクロモータ１１を停止させるためのもの
で、必要に応じて配設するものである。 On the other hand, the release mechanism is a rotary solenoid 20
The lever 21 is engaged with the end of the drum holder 17, and when the rotary solenoid 20 is energized and operated as described later, the lever 21 rotates and the drum holder 17 toward the first drum 13 to bring the first drum 13 and second drum 15 into close contact or pressure contact, and when the rotary solenoid 20 is de-energized, it rotates in the opposite direction and moves the drum holder 17 together with the lever 21 to the first drum 15. The second drum 15 is separated from the drum 13 so that a gap is formed between the second drum 15 and the first drum 13. Further, the endoscope operation unit 2 is provided with a forward rotation control switch 22 that rotates the micromotor 11 of the insertion/extraction device 5 in the forward direction, and a reverse rotation control switch 23 that rotates it in the reverse direction. 23 are of a normally open contact type with automatic return by means of springs 24. The electric wire 25 connected to the micromotor 11 and the switches 22 and 23 is connected to a power supply device 27 via a universal cord 26 connected to the operating section 2. On the other hand, a detection sensor such as a piezoelectric element that generates an electromotive force of a predetermined value due to a minute pressing force when the treatment instrument 18 comes into contact with the treatment instrument channel 6 of the endoscope insertion section 3 is provided. 28, 29 are arranged, and the output parts of the detection sensors 28, 29 are electrically connected to the amplifier circuit 30, delay circuit 31, and switching circuit 32 arranged in the operation section 2 to form a detection control circuit 33. It consists of However, the delay circuit 31 moves the tip of the treatment instrument 18 forward by a distance L shown in FIG. This is for stopping the system and is installed as necessary.
次に、処置具挿抜装置５の回路構成を、第６図
を参照して説明する。 Next, the circuit configuration of the treatment instrument insertion/extraction device 5 will be explained with reference to FIG. 6.
電源装置２７は、夫々並列接続した正転用制御
スイツチ２２と逆転用制御スイツチ２３を介して
マイクロモータ１１及びロータリーソレノイド２
０の励磁回路に接続し、又、検出センサー２８，
２９の出力部は増幅回路３０及び遅延回路３１を
介してスイツチング回路３２に接続し、このスイ
ツチング回路３２を前記マイクロモータ１１の励
磁回路に直列に介装してある。尚、第４図に於い
て図中符号３４はイメージガイド、３５は対物レ
ンズ系を示す。 The power supply device 27 supplies the micro motor 11 and the rotary solenoid 2 via a forward rotation control switch 22 and a reverse rotation control switch 23, which are connected in parallel.
0 excitation circuit, and the detection sensor 28,
The output section of 29 is connected to a switching circuit 32 via an amplifier circuit 30 and a delay circuit 31, and this switching circuit 32 is interposed in series with the excitation circuit of the micromotor 11. In FIG. 4, reference numeral 34 indicates an image guide, and 35 indicates an objective lens system.
このような構成の内視鏡１は、操作部２の処置
具挿入口４に鉗子等の処置具１８を挿入して第１
ドラム１３と第２ドラム１５の接合部に位置さ
せ、正転用制御スイツチ２２を閉成する。勿論、
この状態下ではスイツチング回路３２には検出セ
ンサー２８，２９からの出力が無いので常閉（ｂ
接点）側であるから、マイクロモータ１１とロー
タリーソレノイド２０の励磁回路に通電し、マイ
クロモータ１１を正転方向に回転させると共にロ
ータリーソレノイド２０を図中矢符方向（反時計
方向）に回動させるから、レバー２１が回動して
ドラムホルダー１７を第１ドラム１３の方に押し
つけ第１ドラム１３と第２ドラム１５を密着乃至
圧接する。この結果、両ドラム１３，１５は処置
具１８のシース１９を挾持する状態で挿入方向へ
順送する。このようにして、シース１９が案内部
９を経て処置具チヤンネル６内に挿入されて行
き、その先端が検出センサー２８，２９に当接す
ると、この検出センサー２８，２９で圧電変換に
伴う起電圧が発生する。この起電圧出力が増幅さ
れスイツチング回路３２に入力すると、その接点
を常開（ａ接点）側に切替えマイクロモータ１１
及びロータリーソレノイド２０の励磁回路を開放
する。従つて、シース１９の先端が観察視野に少
し入つた状態の時、マイクロモータ１１は停止す
る一方、ロータリーソレノイド２０は時計方向に
自動回動復帰し、レバー２１と係合しているドラ
ムホルダー１７を第１ドラム１３の方から離開さ
せ、第１ドラム１３と第２ドラム１５との間に空
隙を形成する。 In the endoscope 1 having such a configuration, a treatment instrument 18 such as forceps is inserted into the treatment instrument insertion opening 4 of the operating section 2, and the first
It is located at the joint between the drum 13 and the second drum 15, and the normal rotation control switch 22 is closed. Of course,
Under this state, the switching circuit 32 has no output from the detection sensors 28 and 29, so it is normally closed (b
(contact) side, it energizes the excitation circuit of the micromotor 11 and the rotary solenoid 20, causing the micromotor 11 to rotate in the forward direction and the rotary solenoid 20 to rotate in the direction of the arrow in the figure (counterclockwise). , the lever 21 rotates to press the drum holder 17 toward the first drum 13, bringing the first drum 13 and the second drum 15 into close contact or pressure contact. As a result, both drums 13 and 15 are progressively transported in the insertion direction while holding the sheath 19 of the treatment instrument 18 between them. In this way, the sheath 19 is inserted into the treatment instrument channel 6 via the guide section 9, and when its tip comes into contact with the detection sensors 28, 29, the electromotive force generated by the piezoelectric conversion occurs at the detection sensors 28, 29. occurs. When this electromotive voltage output is amplified and input to the switching circuit 32, the contact is switched to the normally open (A contact) side and the micromotor 11
And the excitation circuit of the rotary solenoid 20 is opened. Therefore, when the tip of the sheath 19 is slightly within the field of view, the micromotor 11 stops, the rotary solenoid 20 automatically rotates back clockwise, and the drum holder 17 engaged with the lever 21 is rotated clockwise. are separated from the first drum 13 to form a gap between the first drum 13 and the second drum 15.
これにより処置具１８のシース１９と両ドラム
１３，１５の挾持状態が解放され、シース１９と
の摩擦抵抗も無いので、術者は手動にて微妙な最
終挿入操作を行ない、目的部位を正確に狙撃する
ことができる上、体腔内壁を傷つける虞れは無
い。ちなみに前記した従来の内視鏡では、モータ
が停止した状態でも処置具はローラー等で押圧さ
れたままであるから、この発明の如く手動で軽妙
な挿入操作乃至施術を行うことは不可能である。
所定の施術を行なつた後、処置具１８のシース１
９を抜去する場合は、手動でシース１９を鉗子チ
ヤンネル６の方に引き戻し、シース１９の先端が
検出センサー２８，２９の処から離脱した時点
で、逆転用制御スイツチ２３を閉成すると、スイ
ツチング回路３２は閉成され、ロータリーソレノ
イド２０は再び励磁されるので第１ドラム１３と
第２ドラム１５は互いに密着しシース１９を挾持
する。一方、マイクロモータ１１には極性が反転
した励磁電流が通電するので、逆回転し両ドラム
１３，１５を逆方向に回転させ、シース１９を自
動的に抜去させる。 This releases the clamping state between the sheath 19 of the treatment instrument 18 and both drums 13 and 15, and there is no frictional resistance with the sheath 19, so the operator can manually perform a delicate final insertion operation to accurately insert the target area. Not only can it be used as a sniper, but there is no risk of damaging the internal walls of the body cavity. Incidentally, in the conventional endoscope described above, even when the motor is stopped, the treatment instrument remains pressed by a roller or the like, so it is impossible to perform light insertion operations or treatments manually as in the present invention.
After performing the prescribed treatment, the sheath 1 of the treatment instrument 18
9, manually pull the sheath 19 back toward the forceps channel 6, and when the tip of the sheath 19 leaves the detection sensors 28 and 29, close the reverse control switch 23, and the switching circuit 32 is closed and the rotary solenoid 20 is energized again, so that the first drum 13 and the second drum 15 come into close contact with each other and sandwich the sheath 19. On the other hand, since the excitation current with reversed polarity is applied to the micromotor 11, it rotates in the opposite direction, causing both the drums 13 and 15 to rotate in the opposite direction, and the sheath 19 to be automatically removed.
第７図に示す第二実施例では、処置具挿抜装置
５を内視鏡１とは別体に成形したケース４０内に
配設し、このケース４０に可撓性を有するフレキ
シブルチユーブ４１を連結し、この先端に連結部
４２を設けると共に、この連結部４２を操作部２
の処置具挿入口４に着脱自在に装着するように構
成したものである。処置具１８のシース１９は、
ケース４０内の処置具挿抜装置５及びフレキシブ
ルチユーブ４１を経て、挿入口４から処置具チヤ
ンネル６内に挿入されるようになつている。又、
正転用制御スイツチ２２と逆転用制御スイツチ２
３は、ケース４０及び（又は）操作部２に配設し
てあり、電線４３はユニバーサルコード２６を介
して電源装置２７に接続してある。尚、他の構成
は前記第一実施例と同一である。 In the second embodiment shown in FIG. 7, a treatment instrument insertion/extraction device 5 is arranged in a case 40 molded separately from the endoscope 1, and a flexible tube 41 having flexibility is connected to the case 40. A connecting portion 42 is provided at this tip, and this connecting portion 42 is connected to the operating portion 2.
The device is configured to be detachably attached to the treatment instrument insertion opening 4 of the device. The sheath 19 of the treatment instrument 18 is
The treatment instrument is inserted into the treatment instrument channel 6 from the insertion opening 4 via the treatment instrument insertion/extraction device 5 and the flexible tube 41 inside the case 40 . or,
Forward rotation control switch 22 and reverse rotation control switch 2
3 is disposed on the case 40 and/or the operation section 2, and the electric wire 43 is connected to the power supply device 27 via the universal cord 26. Note that the other configurations are the same as those of the first embodiment.
この発明は上記実施例の構成に特定されるもの
ではなく、例えばフレキシブルチユーブ４１を介
さず直接ケース４０の出口側案内口を操作部２の
処置具挿入口４に連結した構成としても良い。尚
又、検出センサーとしては圧電変換素子を用いず
光電変換素子や近接検出スイツチング素子等を用
いても良く、且つその配設数は任意である。 The present invention is not limited to the configuration of the above-described embodiment; for example, the outlet side guide port of the case 40 may be directly connected to the treatment instrument insertion port 4 of the operating section 2 without using the flexible tube 41. Furthermore, instead of using the piezoelectric conversion element, a photoelectric conversion element, a proximity detection switching element, or the like may be used as the detection sensor, and the number of the sensors provided is arbitrary.
更に、この発明では処置具挿抜装置５におい
て、第２ドラム１５の従動ギヤを省略し、この第
２ドラム１５の第１ドラム１３への密着乃至圧接
状態での回動にて処置具１８を挿抜動作させても
よい。 Further, in the present invention, the driven gear of the second drum 15 is omitted in the treatment instrument insertion/extraction device 5, and the treatment instrument 18 is inserted/extracted by rotation of the second drum 15 in close contact or pressure contact with the first drum 13. You may run it.
尚、この発明の解除機構は、駆動部と処置具と
の摩擦抵抗がゼロというだけではなく、術者が容
易に処置具を挿入抜脱できる程度の摩擦抵抗を含
むのはもちろんである。 It goes without saying that the release mechanism of the present invention not only has zero frictional resistance between the drive section and the treatment instrument, but also includes frictional resistance to the extent that the operator can easily insert and remove the treatment instrument.
以上説明したようにこの発明によれば、処置具
を予め設定した挿入量位置まで自動的に挿入し、
該設定位置で自動的に処置具の挿入を停止でき、
且つこの停止と連動して駆動機構と処置具との機
械的摩擦抵抗を解除して、処置具の手動による微
妙な挿入、抜脱操作ができて目的部位への狙撃を
容易、確実にできる効果がある。 As explained above, according to the present invention, the treatment instrument is automatically inserted to a preset insertion amount position,
The insertion of the treatment instrument can be automatically stopped at the set position,
In addition, in conjunction with this stop, the mechanical friction resistance between the drive mechanism and the treatment tool is released, allowing delicate manual insertion and removal of the treatment tool, making it easier and more reliable to aim at the target area. There is.
第１図乃至第６図はこの発明の第一実施例に係
り、第１図は内視鏡の全体を示す概略正面図、第
２図は操作部を示す要部縦断面図、第３図は第２
図のＡ−Ａ線断面図、第４図は内視鏡先端部を示
す断面図、第５図は解除機構の斜視図、第６図は
処置具挿抜装置の回路図、第７図はこの発明の第
二実施例に係る内視鏡の全体を示す概略正面図で
ある。
１……内視鏡、２……操作部、３……挿入部、
５……処置具挿抜装置、１７……ドラムホルダ
ー、１８……処置具、２０……ロータクーソレノ
イド、２１……レバー、２８，２９……検出セン
サー、３３……検出制御回路。
1 to 6 relate to a first embodiment of the present invention, in which FIG. 1 is a schematic front view showing the entire endoscope, FIG. 2 is a longitudinal cross-sectional view of main parts showing the operating section, and FIG. 3 is the second
4 is a sectional view showing the distal end of the endoscope, FIG. 5 is a perspective view of the release mechanism, FIG. 6 is a circuit diagram of the treatment instrument insertion/extraction device, and FIG. 7 is a sectional view of the endoscope tip. It is a schematic front view showing the whole endoscope concerning the second example of the invention. 1... Endoscope, 2... Operation section, 3... Insertion section,
5... Treatment instrument insertion/extraction device, 17... Drum holder, 18... Treatment instrument, 20... Rotor coupling solenoid, 21... Lever, 28, 29... Detection sensor, 33... Detection control circuit.
Claims (1)
置を具備した内視鏡において、処置具を挾持しそ
の摩擦抵抗で挿入抜脱する処置具挿抜装置の駆動
部に、駆動部の挾持による摩擦抵抗を解除する解
除機構を連設し、処置具チヤンネルの先端近傍に
は処置具を検出する検出センサーを配設し、この
検出センサーの出力により前記駆動部及び解除機
構を駆動停止制御するように構成したことを特徴
とする内視鏡。1. In an endoscope equipped with a treatment instrument insertion/extraction device that automatically inserts/removes a treatment instrument, the drive section of the treatment instrument insertion/extraction device that clamps the treatment instrument and inserts/extracts it using its frictional resistance is equipped with a A release mechanism for releasing frictional resistance is provided in series, a detection sensor for detecting the treatment tool is arranged near the tip of the treatment tool channel, and the drive section and the release mechanism are controlled to stop driving by the output of this detection sensor. An endoscope characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56075251A JPS57190541A (en) | 1981-05-19 | 1981-05-19 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56075251A JPS57190541A (en) | 1981-05-19 | 1981-05-19 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190541A JPS57190541A (en) | 1982-11-24 |
| JPS647781B2 true JPS647781B2 (en) | 1989-02-10 |
Family
ID=13570811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56075251A Granted JPS57190541A (en) | 1981-05-19 | 1981-05-19 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190541A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0481479U (en) * | 1990-11-28 | 1992-07-15 |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004337251A (en) * | 2003-05-13 | 2004-12-02 | Olympus Corp | Endoscope apparatus |
| JP4451124B2 (en) | 2003-11-28 | 2010-04-14 | オリンパス株式会社 | Endoscope treatment instrument insertion / extraction system |
| JP4593129B2 (en) * | 2004-02-26 | 2010-12-08 | オリンパス株式会社 | Endoscope |
| JP4728075B2 (en) * | 2005-09-28 | 2011-07-20 | オリンパスメディカルシステムズ株式会社 | Endoscope system |
| EP1946693B1 (en) | 2005-10-19 | 2011-04-13 | Olympus Corporation | Endoscope system |
| JP4763420B2 (en) | 2005-10-27 | 2011-08-31 | オリンパスメディカルシステムズ株式会社 | Endoscope operation assistance device |
| JP5121132B2 (en) | 2005-11-02 | 2013-01-16 | オリンパスメディカルシステムズ株式会社 | Endoscope system and operation assist device for endoscope |
| US7524284B2 (en) | 2006-02-06 | 2009-04-28 | Olympus Medical Systems Corp. | Endoscopy system |
| JP4870147B2 (en) * | 2006-02-21 | 2012-02-08 | オリンパスメディカルシステムズ株式会社 | Endoscope system and medical instrument |
| WO2007096951A1 (en) * | 2006-02-21 | 2007-08-30 | Olympus Medical Systems Corp. | Endoscope system and medical instrument |
| US7582055B2 (en) | 2006-08-09 | 2009-09-01 | Olympus Medical Systems Corp. | Endoscope system |
| US8105230B2 (en) | 2007-07-09 | 2012-01-31 | Olympus Medical Systems Corp. | Medical system |
| JP4672031B2 (en) * | 2008-01-31 | 2011-04-20 | オリンパスメディカルシステムズ株式会社 | Medical instruments |
| JP5096202B2 (en) * | 2008-03-21 | 2012-12-12 | オリンパスメディカルシステムズ株式会社 | Endoscope system |
| CN103690201B (en) * | 2014-01-13 | 2016-09-14 | 天津医科大学总医院 | Treadle type endoscope biopsy system and using method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573284Y2 (en) * | 1977-10-20 | 1982-01-21 | ||
| JPS568028A (en) * | 1979-07-03 | 1981-01-27 | Olympus Optical Co | Treating inserting and drawing out apparatus of endoscope |
| JPS57136431A (en) * | 1981-02-18 | 1982-08-23 | Olympus Optical Co | Endoscope |
-
1981
- 1981-05-19 JP JP56075251A patent/JPS57190541A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0481479U (en) * | 1990-11-28 | 1992-07-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57190541A (en) | 1982-11-24 |
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