JPH0423521Y2 - - Google Patents
Info
- Publication number
- JPH0423521Y2 JPH0423521Y2 JP5086687U JP5086687U JPH0423521Y2 JP H0423521 Y2 JPH0423521 Y2 JP H0423521Y2 JP 5086687 U JP5086687 U JP 5086687U JP 5086687 U JP5086687 U JP 5086687U JP H0423521 Y2 JPH0423521 Y2 JP H0423521Y2
- Authority
- JP
- Japan
- Prior art keywords
- distal end
- nozzle
- body wall
- water
- insertion section
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000005286 illumination Methods 0.000 claims description 25
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 210000004400 mucous membrane Anatomy 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は内視鏡に係わり、特に内視鏡の照明光
による体内壁粘膜の熱傷を防止する手段に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an endoscope, and particularly to a means for preventing burns of the mucous membrane of the body wall caused by the illumination light of the endoscope.
従来、内視鏡の照明光による体内壁粘膜の熱傷
を防止する手段としては、実開昭54−131786号公
報に示されるように体内壁によつて反射された照
明光の照度や輻射熱を、内視鏡挿入部の先端部に
設けたサーミスタ等の感熱素子で検知し、その出
力によつて照明光を制御して粘膜に過剰な熱を与
えないようにしたものがある。
Conventionally, as a means to prevent burns on the mucous membrane of the body wall caused by the illumination light of an endoscope, as shown in Japanese Utility Model Application No. 131786/1986, the illuminance and radiant heat of the illumination light reflected by the body wall are reduced. Some endoscopes detect this using a heat-sensitive element such as a thermistor provided at the tip of the endoscope insertion part, and control the illumination light based on the output of the heat-sensitive element to prevent excessive heat from being applied to the mucous membrane.
しかしながら、上記のような熱傷防止手段は、
照明光の反射光を利用するために体内壁粘膜と挿
入部先端との間に空間を必要とし、挿入部先端が
体内壁粘膜に密着している場合には反射光が感熱
素子に入射せず、照明光を制御するための出力が
得られないという欠点を有していた。従つて、熱
傷を起こす危険性は挿入部先端を体内壁粘膜に近
付けたときよりも密着させたときの方が高いた
め、従来のものでは効果的な熱傷防止を行なうこ
とができなかつた。
However, the above-mentioned burn prevention measures are
In order to utilize the reflected light of the illumination light, a space is required between the body wall mucosa and the tip of the insertion tube, and if the insertion tube tip is in close contact with the body wall mucosa, the reflected light will not enter the heat-sensitive element. However, it has the disadvantage that it is not possible to obtain an output for controlling illumination light. Therefore, the risk of causing burns is higher when the tip of the insertion section is in close contact with the mucous membrane of the body wall than when it is close to the body wall mucous membrane, so conventional methods have not been able to effectively prevent burns.
本考案は上述した問題点を解決するためになさ
れたもので、その目的とするところは、挿入部の
先端を体内壁に密着させた場合に照明光による体
内壁粘膜の熱傷を確実に防止することができる内
視鏡を提供することにある。 The present invention was developed to solve the above-mentioned problems, and its purpose is to reliably prevent burns on the mucous membrane of the body wall caused by illumination light when the tip of the insertion section is brought into close contact with the body wall. Our goal is to provide an endoscope that can
上記問題点を解決するために本考案は、内視鏡
挿入部の先端面に接触センサを設けるとともに、
照明窓の近傍に送気又は送水ノズルを設け、前記
接触センサの信号により前記ノズルから照明窓の
表面に向けて送気又は送水を行なうようにしたこ
とを特徴とするものである。
In order to solve the above problems, the present invention provides a contact sensor on the distal end surface of the endoscope insertion section, and
An air or water supply nozzle is provided near the illumination window, and air or water is supplied from the nozzle toward the surface of the illumination window in response to a signal from the contact sensor.
以下、図面を参照して本考案の実施例について
説明する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第５図は本考案の一実施例を示
し、図中１は内視鏡の挿入部である。この挿入部
１は操作部２側より可撓管部３、湾曲部４、先端
部５を順次連結してなり、先端部５の先端面５ａ
には第３図に示す如く照明窓９、観察窓１０およ
び鉗子チヤンネル開口部１１が設けられている。
上記照明窓９および観察窓１０の近傍にはノズル
１２ａ，１２ｂが設けられ、ノズル１２ａには第
２図に示すように送水チユーブ１４の一端が口金
１３を介して接続されている。この送水チユーブ
１４の他端は操作部２に設けられたユニバーサル
コード８を介して送水装置に接続されており、送
水装置からの送水によりノズル１２ａから照明窓
９の表面に水を流すように構成されている。ま
た、ノズル１２ｂもノズル１２ａと同様に図示し
ない送水チユーブを介して送水装置に接続されて
いる。 FIGS. 1 to 5 show an embodiment of the present invention, in which numeral 1 indicates an insertion section of an endoscope. This insertion section 1 is formed by sequentially connecting a flexible tube section 3, a curved section 4, and a distal end section 5 from the operating section 2 side.
As shown in FIG. 3, there are provided an illumination window 9, an observation window 10, and a forceps channel opening 11.
Nozzles 12a and 12b are provided near the illumination window 9 and observation window 10, and one end of a water supply tube 14 is connected to the nozzle 12a via a base 13, as shown in FIG. The other end of this water supply tube 14 is connected to a water supply device via a universal cord 8 provided on the operation unit 2, and is configured to flow water from the nozzle 12a to the surface of the lighting window 9 by water supply from the water supply device. has been done. Further, like the nozzle 12a, the nozzle 12b is also connected to a water supply device via a water supply tube (not shown).
上記照明窓９の周囲には感圧素子等の接触セン
サ１５がリング状に配設されている。この接触セ
ンサ１５の接触信号は第４図に示すように図示し
ない信号線を介して送水装置のスイツチング回路
１６に入力され、このスイツチング回路１６によ
り送水装置の送水ポンプ１７を作動させる構成と
なつている。また、挿入部１内には図示しない光
源装置からの照明光を照明窓９を通して被検部位
に照射するライトガイドフアイバ１８やイメージ
ガイドフアイバ等が設けられ、また操作部２には
接眼部６および湾曲操作ノブ７等が設けられてい
る。 A contact sensor 15 such as a pressure sensitive element is arranged in a ring shape around the illumination window 9. As shown in FIG. 4, the contact signal from the contact sensor 15 is input to a switching circuit 16 of the water supply device via a signal line (not shown), and this switching circuit 16 operates a water pump 17 of the water supply device. There is. In addition, a light guide fiber 18, an image guide fiber, etc. are provided in the insertion section 1 to irradiate illumination light from a light source device (not shown) to the test site through the illumination window 9, and the operation section 2 is provided with an eyepiece section 6. A bending operation knob 7 and the like are provided.
上記の構成によると、第５図に示すように挿入
部１の先端面つまり先端部５の先端面５ａが体内
壁粘膜１９に接触すると、接触センサ１５も同時
に接触し、接触センサ１５に圧力が加わる。これ
により接触センサ１５から接触信号が送出され、
図示しない信号線を介して送水装置のスイツチン
グ回路１６に入力される。このスイツチング回路
１６では接触センサ１５から接触信号が入力され
ると、送水装置の送水ポンプ１７を作動させ、送
水チユーブ１４を通じてノズル１２ａに送水を行
なう。従つて、本実施例では挿入部１の先端面が
体内壁粘膜１９に接触すると、照明窓９の近傍に
設けられたノズル１２ａから水が流出し、照明窓
９の表面を流れて照明窓９が冷却されるため、照
明光による体内壁粘膜１９の熱傷を防止すること
ができる。 According to the above configuration, as shown in FIG. 5, when the distal end surface of the insertion section 1, that is, the distal end surface 5a of the distal end section 5 comes into contact with the body wall mucous membrane 19, the contact sensor 15 also contacts at the same time, and pressure is applied to the contact sensor 15. join. As a result, a contact signal is sent from the contact sensor 15,
The signal is input to the switching circuit 16 of the water supply device via a signal line (not shown). When the contact signal is input from the contact sensor 15, this switching circuit 16 operates the water pump 17 of the water supply device to supply water to the nozzle 12a through the water supply tube 14. Therefore, in this embodiment, when the distal end surface of the insertion section 1 comes into contact with the body wall mucous membrane 19, water flows out from the nozzle 12a provided near the illumination window 9, flows on the surface of the illumination window 9, and flows through the illumination window 9. is cooled, it is possible to prevent burns on the body wall mucous membrane 19 caused by the illumination light.
なお、上述した実施例では照明窓９の周囲に接
触センサ１５をリング状に配設したが、第６図お
よび第７図に示すように複数個の接触センサ１５
…を先端部５の先端面外周部に例えば湾曲部４の
湾曲方向に１個ずつ配設してもよい。また、ノズ
ル１２ａの形状を第６図の如く照明窓９の周囲か
ら送水する形状にすれば、より効果的に照明窓９
を冷却することができる。さらにノズル１２ａに
低温空気等を送気するようにしても照明窓９を冷
却することができる。 In the embodiment described above, the contact sensors 15 are arranged in a ring shape around the illumination window 9, but as shown in FIGS. 6 and 7, a plurality of contact sensors 15
... may be arranged on the outer periphery of the distal end surface of the distal end portion 5, for example, one at a time in the curved direction of the curved portion 4. Further, if the shape of the nozzle 12a is configured to feed water from around the lighting window 9 as shown in FIG.
can be cooled. Furthermore, the illumination window 9 can be cooled by supplying low-temperature air or the like to the nozzle 12a.
また、第６図に示すように先端部５の外周部に
圧力センサ２０を設け、この圧力センサ２０の信
号と接触センサ１５の信号とを比較し、第８図に
示すように接触センサ１５の信号レベルP1が圧
力センサ２０の信号レベルP2より高い場合にの
みポンプ作動信号P3を出力して送水ポンプ１７
を作動させるようにしてもよい。このようにすれ
ば挿入部１の先端面が体内壁粘膜に接触していな
い状態で患者の咳等により体腔内圧が急激に上昇
した場合でも送水ポンプ１７の誤動作を防止する
ことができる。 Further, as shown in FIG. 6, a pressure sensor 20 is provided on the outer periphery of the tip 5, and the signal of this pressure sensor 20 and the signal of the contact sensor 15 are compared, and as shown in FIG. Only when the signal level P 1 is higher than the signal level P 2 of the pressure sensor 20, the pump operation signal P 3 is output and the water pump 17 is activated.
may be activated. In this way, malfunction of the water pump 17 can be prevented even if the pressure inside the body cavity increases rapidly due to coughing or the like of the patient while the distal end surface of the insertion section 1 is not in contact with the mucous membrane of the body wall.
以上説明したように本考案によれば、挿入部の
先端面に接触センサを設けるとともに、照明窓の
近傍に送水又は送気ノズルを設け、前記接触セン
サの信号により前記ノズルから照明窓の表面に向
けて送気又は送水を行なうようにしたので、内視
鏡挿入部の先端を体内壁粘膜に密着させた場合で
も照明光による体内壁粘膜の熱傷を確実に防止す
ることができる。
As explained above, according to the present invention, a contact sensor is provided on the distal end surface of the insertion section, and a water or air supply nozzle is provided near the lighting window, and a signal from the contact sensor causes the water to flow from the nozzle to the surface of the lighting window. Since air or water is supplied toward the endoscope, it is possible to reliably prevent burns to the mucous membrane of the body wall caused by the illumination light even when the tip of the endoscope insertion portion is brought into close contact with the mucous membrane of the body wall.
第１図ないし第５図は本考案の一実施例を示
し、第１図は内視鏡の全体図、第２図は挿入部の
先端部分を示す断面図、第３図は第２図の−
矢視図、第４図は接触センサと送水装置との接続
関係を示すブロツク図、第５図は挿入部の先端面
が体内粘膜に接触した状態を示す断面図、第６図
ないし第８図は本考案の他の実施例を示し、第６
図は挿入部の先端部分を示す断面図、第７図は第
６図の−矢視図、第８図は先端部の外周部に
圧力センサを設けた場合の作用を示す信号波形図
である。
１……挿入部、２……操作部、３……可撓管
部、４……湾曲部、５……先端部、９……照明
窓、１０……観察窓、１２ａ，１２ｂ……ノズ
ル、１４……送水チユーブ、１５……接触セン
サ、１６……スイツチング回路、１７……送水ポ
ンプ、１９……体内壁粘膜。
Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being an overall view of the endoscope, Figure 2 being a sectional view showing the distal end of the insertion section, and Figure 3 being the same as Figure 2. −
4 is a block diagram showing the connection relationship between the contact sensor and the water supply device, FIG. 5 is a sectional view showing the state in which the distal end surface of the insertion section is in contact with the internal mucous membrane, and FIGS. 6 to 8 shows another embodiment of the present invention, and the sixth embodiment shows another embodiment of the present invention.
The figure is a cross-sectional view showing the distal end portion of the insertion section, FIG. 7 is a view taken along the - arrow in FIG. 6, and FIG. 8 is a signal waveform diagram showing the effect when a pressure sensor is provided on the outer circumference of the distal end. . DESCRIPTION OF SYMBOLS 1... Insertion part, 2... Operation part, 3... Flexible tube part, 4... Curved part, 5... Tip part, 9... Illumination window, 10... Observation window, 12a, 12b... Nozzle , 14... Water tube, 15... Contact sensor, 16... Switching circuit, 17... Water pump, 19... Body wall mucous membrane.
Claims (1)
有する内視鏡において、前記挿入部の先端面に接
触センサを設けるとともに、照明窓の近傍に送気
又は送水ノズルを設け、前記接触センサの信号に
より前記ノズルから照明窓の表面に向けて送気又
は送水を行なうようにしたことを特徴とする内視
鏡。 In an endoscope having an illumination window on the distal end surface of an insertion section inserted into a body cavity, a contact sensor is provided on the distal end surface of the insertion section, and an air or water supply nozzle is provided near the illumination window, and the contact sensor An endoscope characterized in that air or water is supplied from the nozzle toward the surface of the illumination window in response to a signal from the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5086687U JPH0423521Y2 (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5086687U JPH0423521Y2 (en) | 1987-04-03 | 1987-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63158303U JPS63158303U (en) | 1988-10-17 |
| JPH0423521Y2 true JPH0423521Y2 (en) | 1992-06-02 |
Family
ID=30874615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5086687U Expired JPH0423521Y2 (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423521Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3525023A1 (en) | 2018-02-09 | 2019-08-14 | Leica Instruments (Singapore) Pte. Ltd. | Arm adapted to be attached to a microscope, and microscope |
-
1987
- 1987-04-03 JP JP5086687U patent/JPH0423521Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63158303U (en) | 1988-10-17 |
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