JPH07345A - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPH07345A JPH07345A JP5143685A JP14368593A JPH07345A JP H07345 A JPH07345 A JP H07345A JP 5143685 A JP5143685 A JP 5143685A JP 14368593 A JP14368593 A JP 14368593A JP H07345 A JPH07345 A JP H07345A
- Authority
- JP
- Japan
- Prior art keywords
- axis
- insertion portion
- insertion section
- ring
- 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.)
- Granted
Links
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
- A61B1/00002—Operational features of endoscopes
- A61B1/00039—Operational features of endoscopes provided with input arrangements for the user
- A61B1/00042—Operational features of endoscopes provided with input arrangements for the user for mechanical operation
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、体腔内の内視鏡検査の
ときに使用される内視鏡に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope used for endoscopic examination in a body cavity.
【0002】[0002]
【従来の技術】一般に、この種の内視鏡は操作部の前端
から細長く延出した挿入部を有し、この挿入部の先端に
体腔内を照明するための照明窓や体腔内を観察するため
の観察窓等を設けて構成されている。2. Description of the Related Art Generally, an endoscope of this type has an insertion portion elongated from a front end of an operating portion, and a distal end of the insertion portion is used to observe an illumination window for illuminating the inside of the body cavity or the inside of the body cavity. Is provided with an observation window or the like.
【0003】このような内視鏡を用いて例えば大腸など
の消化管内を内視鏡検査する場合には、内視鏡の挿入部
を肛門から挿入して内視鏡検査を行なうが、このとき肛
門から大腸までの部分は消化管が上下左右に曲がりくね
っているため、挿入部の先端を目的部位まで挿入するた
めには、挿入部の湾曲部を上下左右に湾曲させ、かつ挿
入部を軸芯回りに回転させながら挿入していく必要があ
る。しかし、上述した内視鏡では挿入部が操作部に固定
されているため、挿入部を軸芯回りに回転させる場合に
は内視鏡全体を捻る必要があり、操作部の操作性等を考
慮すると、挿入部をあまり広い範囲で捻ることができな
かった。When an endoscopy of the digestive tract such as the large intestine is performed using such an endoscope, the insertion portion of the endoscope is inserted from the anus to perform the endoscopy. In the part from the anus to the large intestine, the digestive tract winds up, down, left, and right.Therefore, in order to insert the tip of the insertion part to the target site, bend the bending part of the insertion part up, down, left, and right, and place the insertion part on the axis. It is necessary to insert it while rotating it around. However, in the above-mentioned endoscope, since the insertion part is fixed to the operation part, it is necessary to twist the entire endoscope when rotating the insertion part around the axis, and the operability of the operation part is considered. Then, the insertion part could not be twisted over a wide range.
【0004】そこで、挿入部を操作部に対して軸芯回り
に回動可能に設け、挿入部を広い範囲で捻ることができ
るようにした内視鏡が米国特許第4989581号公報
に開示されている。Therefore, US Pat. No. 4,989,581 discloses an endoscope in which the insertion portion is provided so as to be rotatable about the axis with respect to the operation portion, and the insertion portion can be twisted in a wide range. There is.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、上記文
献に開示された内視鏡は、操作部と挿入部とをコイル状
のトーションバネを介して連結しているため、挿入部を
軸芯回りに捻った後、挿入部を捻っている手を挿入部か
ら離すと、トーションバネのバネ力によって挿入部が術
者の意思に反して元の位置に戻ってしまい、取扱い性が
悪いという問題があった。However, in the endoscope disclosed in the above-mentioned document, since the operating portion and the insertion portion are connected via the coil-shaped torsion spring, the insertion portion is rotated around the axis. After twisting, if the hand twisting the insertion part is released from the insertion part, the insertion part will return to the original position against the operator's intention due to the spring force of the torsion spring, and there is a problem that handling is poor. It was
【0006】本発明は上述した問題点に鑑みてなされた
もので、挿入部に軸芯回りの回動力を与えている手を挿
入部から離しても術者の意思に反して挿入部が元の位置
に戻ることのない内視鏡を提供することを目的とするも
のである。The present invention has been made in view of the above-mentioned problems, and even if the hand which gives the rotational force around the axis to the insertion portion is separated from the insertion portion, the insertion portion is not operated against the intention of the operator. It is an object of the present invention to provide an endoscope that does not return to the position.
【0007】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明は、操作部と、この操作部に対して軸芯回りに
回動可能に設けられた挿入部とを具備してなる内視鏡に
おいて、前記挿入部を回動自在な状態から軸芯回りに付
勢された状態に切り換える切換え手段を設けたことを特
徴とする。In order to solve the above-mentioned problems, the present invention comprises an operating portion and an insertion portion provided so as to be rotatable about an axis of the operating portion. In the endoscope, a switching means is provided for switching the insertion portion from a rotatable state to a state in which the insertion portion is biased around the axis.
【0008】[0008]
【作用】本発明においては挿入部を回動自在な状態から
軸芯回りに付勢された状態に切り換えることができるの
で、術者の意思に反して挿入部が元の位置に戻ってしま
うようなことがなく、体腔内への挿入性を向上させるこ
とができる。In the present invention, since the insertion portion can be switched from the rotatable state to the state in which the insertion portion is biased about the axis, the insertion portion returns to its original position against the intention of the operator. Without this, the insertability into the body cavity can be improved.
【0009】[0009]
【実施例】以下、本発明の一実施例を図1乃至図10を
参照して説明する。図1及び図2において符号1は内視
鏡の操作部であり、この操作部1の前端には細管状の挿
入部4が設けられている。なお、操作部1は図3に示す
ように操作部本体2の中心部に筒状部材3を設けて構成
されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIGS. 1 and 2, reference numeral 1 is an operating portion of the endoscope, and a thin tubular insertion portion 4 is provided at the front end of the operating portion 1. As shown in FIG. 3, the operation unit 1 is configured by providing a tubular member 3 in the center of the operation unit body 2.
【0010】前記挿入部4は操作部1に対して軸芯回り
に回動可能となっており、挿入部4の基端部を形成する
挿入部口金8(図3参照)にはピン22が設けられてい
る。このピン22は図4に示すように筒状部材3の外周
面から突出しており、筒状部材3にはピン22の回動範
囲を120°〜150°に規制するスリット23が形成
されている。なお、挿入部4は円柱状の先端部材5と、
この先端部材5の後端に連設された湾曲管6と、この湾
曲管6の後端に連設された可撓管7と、この可撓管7の
後端に連設された挿入部口金8(図3参照)とで構成さ
れており、この挿入部口金8の後端部には、前記筒状部
材3の内周面に設けられたテーパ部10(図7参照)と
係合する抜け止め部9が設けられている。The insertion portion 4 is rotatable with respect to the operation portion 1 about its axis, and the insertion portion cap 8 (see FIG. 3) forming the base end portion of the insertion portion 4 has a pin 22. It is provided. As shown in FIG. 4, the pin 22 projects from the outer peripheral surface of the tubular member 3, and the tubular member 3 is provided with a slit 23 for restricting the rotation range of the pin 22 to 120 ° to 150 °. . The insertion portion 4 has a cylindrical tip member 5,
A bending tube 6 continuously provided at the rear end of the tip member 5, a flexible tube 7 continuously provided at the rear end of the bending tube 6, and an insertion portion continuously provided at the rear end of the flexible tube 7. And a taper portion 10 (see FIG. 7) provided on the inner peripheral surface of the tubular member 3 at the rear end of the insertion portion mouthpiece 8. A retaining portion 9 for preventing the movement is provided.
【0011】一方、前記操作部1の前端部外周には、挿
入部4を操作部1に対して回動自在な状態から軸芯回り
に回動付勢された状態に切り換える切換えリング12が
設けられている。この切換えリング12は挿入部4の軸
芯回りに回動可能となっており、その内側にはカムリン
グ13(図3及び図4参照)が設けられている。このカ
ムリング13は切換えリング12と一体に回動するよう
になっており、その周面部には図5に示すような形状の
ガイド孔14a,14bが穿設されている。これらのガ
イド孔14a,14bは移動リング16を挿入部4の軸
芯回りに回動させるためのものであり、移動リング16
にはガイド孔14a,14bと係合するカムピン15
a,15bが設けられている。On the other hand, on the outer periphery of the front end portion of the operating portion 1, there is provided a switching ring 12 for switching the insertion portion 4 from the rotatable state with respect to the operating portion 1 to the rotationally biased state around the axis. Has been. The switching ring 12 is rotatable around the axis of the insertion portion 4, and a cam ring 13 (see FIGS. 3 and 4) is provided inside the switching ring 12. The cam ring 13 is adapted to rotate integrally with the switching ring 12, and guide holes 14a and 14b having a shape as shown in FIG. These guide holes 14a and 14b are for rotating the moving ring 16 around the axis of the insertion portion 4, and
The cam pin 15 that engages with the guide holes 14a and 14b.
a and 15b are provided.
【0012】前記移動リング16はカムリング13と筒
状部材3との間に設けられており、筒状部材3の周面部
には長円形状のガイド孔17a,17bが筒状部材3の
軸方向に沿って穿設されている。これらのガイド孔17
a,17bは移動リング16を挿入部4の軸方向に移動
させるためのものであり、カムピン15a,15bの端
部にはガイド孔17a,17bと係合する係合部18
a,18bが設けられている。The moving ring 16 is provided between the cam ring 13 and the tubular member 3, and oval guide holes 17a and 17b are provided in the circumferential surface of the tubular member 3 in the axial direction of the tubular member 3. It is drilled along. These guide holes 17
Reference numerals a and 17b are for moving the moving ring 16 in the axial direction of the insertion portion 4, and the engaging portions 18 that engage with the guide holes 17a and 17b are provided at the ends of the cam pins 15a and 15b.
a and 18b are provided.
【0013】前記移動リング16の前端には、挿入部4
に軸芯回りの付勢力を付与するコイルバネ19の一端が
固定されている。このコイルバネ19の他端は切換えリ
ング12と筒状部材3との間に設けられた回動リング2
0の後端に連結しており、回動リング20の前端には切
欠部21(図6参照)が設けられている。なお、切換え
リング12の外周面には切欠部21の位置を示す指標2
4aが設けられ、挿入部4の外表面には係合ピン22の
位置を示す指標24bが設けられている。At the front end of the moving ring 16, the insertion portion 4
One end of a coil spring 19 that applies a biasing force around the axis is fixed to the. The other end of the coil spring 19 has a rotating ring 2 provided between the switching ring 12 and the tubular member 3.
0 is connected to the rear end, and a notch 21 (see FIG. 6) is provided at the front end of the rotating ring 20. In addition, on the outer peripheral surface of the switching ring 12, an index 2 indicating the position of the cutout 21 is provided.
4a is provided, and an index 24b indicating the position of the engagement pin 22 is provided on the outer surface of the insertion portion 4.
【0014】また、前記操作部1の前端部には固定リン
グ25が設けられている。この固定リング25は挿入部
4を回動可能な状態から回動不能な状態に切り換えるた
めのものであり、挿入部口金8の前端部に設けられた雄
ねじ部26に装着されている。なお、雄ねじ部26には
固定リング25を筒状部材3の下端との間に固定するた
めのストッパリング27が装着されている。A fixing ring 25 is provided at the front end of the operating section 1. The fixing ring 25 is for switching the insertion portion 4 from the rotatable state to the non-rotatable state, and is attached to the male screw portion 26 provided at the front end portion of the insertion portion cap 8. A stopper ring 27 for fixing the fixing ring 25 to the lower end of the tubular member 3 is attached to the male screw portion 26.
【0015】また、前記操作部1には画像制御ボタン2
8、湾曲操作ノブ29、送気送水制御ボタン30、吸引
制御ボタン31、処置具挿入口32及び処置具挿入口3
2に取付ける弾性部材で成る栓34が設けられていると
ともに、挿入部1を光源装置35に接続するためのユニ
バーサルコード36が設けられている。なお、図中37
〜42はOリングを示し、Oリング39はOリング42
よりも摩擦抵抗の大きいシール材で形成されている。Further, an image control button 2 is provided on the operation unit 1.
8, bending operation knob 29, air and water supply control button 30, suction control button 31, treatment instrument insertion port 32 and treatment instrument insertion port 3
A plug 34 made of an elastic member to be attached to 2 is provided, and a universal cord 36 for connecting the insertion portion 1 to the light source device 35 is provided. In addition, 37 in the figure
Reference numeral 42 indicates an O-ring, and O-ring 39 indicates an O-ring 42.
It is made of a sealing material with a higher frictional resistance than
【0016】このような構成において挿入部4を手で捻
ると、挿入部4の基端部に設けられたピン22が図8の
二点鎖線で示すように筒状部材3に設けられたスリット
23の端部に当接し、挿入部4の回動範囲が120°〜
150°に規制されるので、挿入部4に内蔵されたライ
トガイドやチャンネルチューブなどの損傷を防止するこ
とができる。When the insertion portion 4 is twisted by hand in such a configuration, the pin 22 provided at the base end portion of the insertion portion 4 is provided with the slit provided in the tubular member 3 as shown by the chain double-dashed line in FIG. 23, the rotation range of the insertion part 4 is 120 °
Since it is regulated to 150 °, it is possible to prevent damage to the light guide, the channel tube, etc. built in the insertion portion 4.
【0017】また、操作部1の前端部外周に設けられた
切換えリング12を挿入部4の軸芯回りに回動操作する
と、図9に示すように回動リング20の前端に設けられ
た切欠部21がピン22に係合し、挿入部4を手で捻っ
たときにコイルバネ19のバネ力がピン22を介して挿
入部4に作用するので、コイルバネ19のバネ力により
挿入部4を定位置に戻すことができる。When the switching ring 12 provided on the outer periphery of the front end of the operating portion 1 is rotated around the axis of the insertion portion 4, a notch provided at the front end of the rotating ring 20 as shown in FIG. When the portion 21 engages with the pin 22 and the insertion portion 4 is twisted by hand, the spring force of the coil spring 19 acts on the insertion portion 4 via the pin 22, so that the insertion portion 4 is fixed by the spring force of the coil spring 19. Can be returned to position.
【0018】さらに、固定リング25を挿入部4の軸芯
回りに回動操作すると、挿入部口金8の雄ねじ部26が
挿入部4の前端側に移動し、これにより挿入部口金8の
抜け止め部9が図10に示すように筒状部材3のテーパ
部10に押圧されるので、挿入部4の位置を固定するこ
とができる。Further, when the fixing ring 25 is rotated around the axis of the insertion portion 4, the male screw portion 26 of the insertion portion cap 8 moves to the front end side of the insertion portion 4, thereby preventing the insertion portion cap 8 from coming off. Since the portion 9 is pressed by the tapered portion 10 of the tubular member 3 as shown in FIG. 10, the position of the insertion portion 4 can be fixed.
【0019】したがって、上述した一実施例では挿入部
4に内蔵されたライトガイドやチャンネルチューブ等を
損傷させることなく挿入部4を軸芯回りに回動操作する
ことができ、しかも軸芯回りに回動操作された挿入部4
をその状態に固定することができるとともに定位置に戻
すことができる。Therefore, in the above-described embodiment, the insertion section 4 can be rotated about the axis without damaging the light guide, the channel tube, etc. built in the insertion section 4, and the axis can be rotated about the axis. Insertion part 4 that has been rotated
Can be fixed in that state and returned to a fixed position.
【0020】なお、上述した一実施例では移動リング1
6を挿入部4の軸芯回りに回動させる手段としてカムリ
ング13の周面部にガイド孔14a,14bを設けた
が、図11及び図12に示すようにカムリング13の内
周面にガイド溝43,43を設け、このガイド溝43,
43にカムピン15a,15bを係合させるようにして
も良い。The moving ring 1 is used in the above-described embodiment.
Although guide holes 14a and 14b are provided in the peripheral surface portion of the cam ring 13 as a means for rotating 6 around the axis of the insertion portion 4, as shown in FIGS. 11 and 12, the guide groove 43 is formed in the inner peripheral surface of the cam ring 13. , 43 are provided, and the guide grooves 43,
The cam pins 15a and 15b may be engaged with 43.
【0021】[0021]
【発明の効果】以上説明したように本発明によれば、挿
入部を回動自在な状態から軸芯回りに付勢された状態に
切り換えることができるので、術者の意思に反して挿入
部が元の位置に戻ってしまうようなことがなく、体腔内
への挿入性を向上させることができる。As described above, according to the present invention, the insertion portion can be switched from the rotatable state to the urged state around the axis, so that the insertion portion is against the operator's intention. Does not return to the original position, and the insertability into the body cavity can be improved.
【図1】本発明の一実施例に係る内視鏡とその周辺装置
を示す図。FIG. 1 is a diagram showing an endoscope and its peripheral devices according to an embodiment of the present invention.
【図2】同実施例に係る内視鏡の概略構成図。FIG. 2 is a schematic configuration diagram of the endoscope according to the embodiment.
【図3】同実施例に係る内視鏡の一部分を示す断面図。FIG. 3 is a sectional view showing a part of the endoscope according to the embodiment.
【図4】図3の部分拡大図。FIG. 4 is a partially enlarged view of FIG.
【図5】図4に示したカムリングの正面図。5 is a front view of the cam ring shown in FIG.
【図6】図4に示した回動リングの正面図。FIG. 6 is a front view of the rotating ring shown in FIG.
【図7】同実施例に係る内視鏡の一部分を示す断面図。FIG. 7 is a sectional view showing a part of the endoscope according to the embodiment.
【図8】同実施例に係る内視鏡の一部分を示す横断面
図。FIG. 8 is a cross-sectional view showing a part of the endoscope according to the embodiment.
【図9】同実施例に係る内視鏡の作用説明図。FIG. 9 is an operation explanatory view of the endoscope according to the embodiment.
【図10】同実施例に係る内視鏡の作用説明図。FIG. 10 is an operation explanatory view of the endoscope according to the embodiment.
【図11】本発明の他の実施例を示す図。FIG. 11 is a diagram showing another embodiment of the present invention.
【図12】本発明の他の実施例を示す図。FIG. 12 is a diagram showing another embodiment of the present invention.
1…操作部 4…挿入部 12…切換えリング 13…カムリング 14a,14b…カム孔 15a,15b…カムピン 16…移動リング 18…コイルバネ 19…回動リング 20…切欠部 21…係合ピン 26…固定リング DESCRIPTION OF SYMBOLS 1 ... Operation part 4 ... Insertion part 12 ... Switching ring 13 ... Cam ring 14a, 14b ... Cam hole 15a, 15b ... Cam pin 16 ... Moving ring 18 ... Coil spring 19 ... Rotation ring 20 ... Notch 21 ... Engagement pin 26 ... Fixed ring
【手続補正書】[Procedure amendment]
【提出日】平成5年9月8日[Submission date] September 8, 1993
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0007[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0007】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明は、操作部と、この操作部に対して軸芯回りに
回動可能に設けられた挿入部とを具備してなる内視鏡に
おいて、前記挿入部を軸芯回りに付勢された状態と付勢
されていない状態とに切り換える切換え手段を設けたこ
とを特徴とする。In order to solve the above-mentioned problems, the present invention comprises an operating portion and an insertion portion provided so as to be rotatable about an axis of the operating portion. In the endoscope, the insertion portion is biased around the axis and the bias is applied.
It is characterized in that a switching means is provided for switching to a non-operated state .
【手続補正3】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0008[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0008】[0008]
【作用】本発明においては挿入部を軸芯回りに付勢され
た状態と付勢されていない状態とに切り換えることがで
きるので、術者の意思に反して挿入部が元の位置に戻っ
てしまうようなことがなく、取扱い性を向上させること
ができる。In the present invention, the insertion portion is biased about the axis.
It is possible to switch to a state of not being state and urged the insertion portion against the operator's will without that would return to the original position, thereby improving the handling property.
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0010[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0010】前記挿入部4は操作部1に対して軸芯回り
に回動可能となっており、挿入部4の基端部を形成する
挿入部口金8(図3参照)にはピン22が設けられてい
る。このピン22は図4に示すように筒状部材3の外周
面から突出しており、筒状部材3にはピン22の移動範
囲を120°〜150°に規制するスリット23が形成
されている。なお、挿入部4は円柱状の先端部材5と、
この先端部材5の後端に連設された湾曲管6と、この湾
曲管6の後端に連設された可撓管7と、この可撓管7の
後端に連設された挿入部口金8(図3参照)とで構成さ
れており、この挿入部口金8の後端部には、前記筒状部
材3の内周面に設けられたテーパ部10(図7参照)と
係合する抜け止め部9が設けられている。The insertion portion 4 is rotatable with respect to the operation portion 1 about its axis, and the insertion portion cap 8 (see FIG. 3) forming the base end portion of the insertion portion 4 has a pin 22. It is provided. As shown in FIG. 4, this pin 22 projects from the outer peripheral surface of the tubular member 3, and the tubular member 3 has a slit 23 for restricting the movement range of the pin 22 to 120 ° to 150 °. Has been formed. The insertion portion 4 has a cylindrical tip member 5,
A bending tube 6 continuously provided at the rear end of the tip member 5, a flexible tube 7 continuously provided at the rear end of the bending tube 6, and an insertion portion continuously provided at the rear end of the flexible tube 7. And a taper portion 10 (see FIG. 7) provided on the inner peripheral surface of the tubular member 3 at the rear end of the insertion portion mouthpiece 8. A retaining portion 9 for preventing the movement is provided.
【手続補正5】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0011[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0011】一方、前記操作部1の前端部外周には、挿
入部4を操作部1に対して軸芯回りに回動付勢された状
態と回動付勢されていない状態とに切り換える切換えリ
ング12が設けられている。この切換えリング12は挿
入部4の軸芯回りに回動可能となっており、その内側に
はカムリング13(図3及び図4参照)が設けられてい
る。このカムリング13は切換えリング12と一体に回
動するようになっており、その周面部には図5に示すよ
うな形状のガイド孔14a,14bが穿設されている。
これらのガイド孔14a,14bは後述するガイド孔1
7a,17bとの組み合わせで移動リング16を挿入部
4の軸芯回りに回動させる。移動リング16にはガイド
孔14a,14bと係合するカムピン15a,15bが
設けられている。On the other hand, on the outer periphery of the front end portion of the operating portion 1, the insertion portion 4 is urged to rotate about the axis with respect to the operating portion 1.
A switching ring 12 is provided for switching between the state and the state in which it is not rotationally biased . The switching ring 12 is rotatable around the axis of the insertion portion 4, and a cam ring 13 (see FIGS. 3 and 4) is provided inside the switching ring 12. The cam ring 13 is adapted to rotate integrally with the switching ring 12, and guide holes 14a and 14b having a shape as shown in FIG.
These guide holes 14a and 14b are guide holes 1 described later.
7a, Ru rotates the mobile ring 16 about the central axis of the insertion portion 4 in combination with 17b. Move ring 16 in the guide holes 14a, 14b that engage the cam pins 15a, 15b are provided.
【手続補正6】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0012[Correction target item name] 0012
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0012】前記移動リング16はカムリング13と筒
状部材3との間に設けられており、筒状部材3の周面部
には長円形状の前記ガイド孔17a,17bが筒状部材
3の軸方向に沿って穿設されている。また、前記カムピ
ン15a,15bの端部にはガイド孔17a,17bと
係合する係合部18a,18bが設けられている。[0012] The moving ring 16 is provided between the cam ring 13 and the tubular member 3, the guide hole 17a, 17b of the tubular member 3 axes of elliptical shape on the peripheral surface of the cylindrical member 3 It is drilled along the direction. Further, engaging portions 18a and 18b that engage with the guide holes 17a and 17b are provided at the ends of the cam pins 15a and 15b.
【手続補正7】[Procedure Amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0015[Name of item to be corrected] 0015
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0015】また、前記操作部1には画像制御ボタン2
8、湾曲操作ノブ29、送気送水制御ボタン30、吸引
制御ボタン31、処置具挿入口32及び処置具挿入口3
2に取付ける弾性部材で成る栓34が設けられていると
ともに、操作部1を光源装置35に接続するためのユニ
バーサルコード36が設けられている。なお、図中37
〜42はOリングを示し、Oリング39はOリング42
よりも摩擦抵抗の大きいシール材で形成されている。Further, an image control button 2 is provided on the operation unit 1.
8, bending operation knob 29, air and water supply control button 30, suction control button 31, treatment instrument insertion port 32 and treatment instrument insertion port 3
A plug 34 made of an elastic member to be attached to 2 is provided, and a universal cord 36 for connecting the operation unit 1 to the light source device 35 is provided. In addition, 37 in the figure
Reference numeral 42 indicates an O-ring, and O-ring 39 indicates an O-ring 42.
It is made of a sealing material with a higher frictional resistance than
【手続補正8】[Procedure Amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0021[Correction target item name] 0021
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0021】[0021]
【発明の効果】以上説明したように本発明によれば、術
者が自由に挿入部を軸芯回りに付勢された状態から付勢
されていない状態に切り換えることができるので、術者
の意思に反して挿入部が元の位置に戻ってしまうような
ことがなく、取扱い性を向上させることができる。As described above, according to the present invention, the operation
The user freely urges the insertion part around the axis.
It is possible to switch the state of not being, the insertion section against the operator's will without that would return to the original position, thereby improving the handling property.
【手続補正9】[Procedure Amendment 9]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図3[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図3】 [Figure 3]
【手続補正10】[Procedure Amendment 10]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図4[Name of item to be corrected] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図4】 [Figure 4]
Claims (1)
に回動可能に設けられた挿入部とを具備してなる内視鏡
において、前記挿入部を回動自在な状態から軸芯回りに
付勢された状態に切り換える切換え手段を設けたことを
特徴とする内視鏡。1. An endoscope comprising an operating portion and an inserting portion rotatably provided on the operating portion about an axis thereof, wherein the inserting portion is rotated from a rotatable state. An endoscope comprising switching means for switching to a state of being biased around a core.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14368593A JP3255761B2 (en) | 1993-06-15 | 1993-06-15 | Endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14368593A JP3255761B2 (en) | 1993-06-15 | 1993-06-15 | Endoscope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07345A true JPH07345A (en) | 1995-01-06 |
JP3255761B2 JP3255761B2 (en) | 2002-02-12 |
Family
ID=15344573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14368593A Expired - Fee Related JP3255761B2 (en) | 1993-06-15 | 1993-06-15 | Endoscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3255761B2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006204582A (en) * | 2005-01-28 | 2006-08-10 | Olympus Corp | Endoscope apparatus |
JP2007236543A (en) * | 2006-03-07 | 2007-09-20 | Olympus Medical Systems Corp | Endoscope |
JP2010069108A (en) * | 2008-09-19 | 2010-04-02 | Olympus Medical Systems Corp | Endoscope |
US8336150B2 (en) | 2008-12-09 | 2012-12-25 | Olympus Medical Systems Corp. | Treatment tool |
JP2013150823A (en) * | 2013-03-21 | 2013-08-08 | Olympus Medical Systems Corp | Endoscope |
WO2014103829A1 (en) * | 2012-12-26 | 2014-07-03 | オリンパスメディカルシステムズ株式会社 | Endoscope |
JP2015019748A (en) * | 2013-07-17 | 2015-02-02 | オリンパスメディカルシステムズ株式会社 | Endoscope |
WO2016042843A1 (en) * | 2014-09-16 | 2016-03-24 | オリンパス株式会社 | Endoscope |
WO2021193943A1 (en) | 2020-03-27 | 2021-09-30 | 富士フイルム株式会社 | Endoscope |
-
1993
- 1993-06-15 JP JP14368593A patent/JP3255761B2/en not_active Expired - Fee Related
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006204582A (en) * | 2005-01-28 | 2006-08-10 | Olympus Corp | Endoscope apparatus |
JP2007236543A (en) * | 2006-03-07 | 2007-09-20 | Olympus Medical Systems Corp | Endoscope |
EP1832222A3 (en) * | 2006-03-07 | 2007-12-19 | Olympus Medical Systems Corp. | Endoscope |
JP4526498B2 (en) * | 2006-03-07 | 2010-08-18 | オリンパスメディカルシステムズ株式会社 | Endoscope |
US7833153B2 (en) | 2006-03-07 | 2010-11-16 | Olympus Medical Systems Corporation | Endoscope |
JP2010069108A (en) * | 2008-09-19 | 2010-04-02 | Olympus Medical Systems Corp | Endoscope |
US8336150B2 (en) | 2008-12-09 | 2012-12-25 | Olympus Medical Systems Corp. | Treatment tool |
WO2014103829A1 (en) * | 2012-12-26 | 2014-07-03 | オリンパスメディカルシステムズ株式会社 | Endoscope |
JP5622970B1 (en) * | 2012-12-26 | 2014-11-12 | オリンパスメディカルシステムズ株式会社 | Endoscope |
US9635999B2 (en) | 2012-12-26 | 2017-05-02 | Olympus Corporation | Endoscope |
JP2013150823A (en) * | 2013-03-21 | 2013-08-08 | Olympus Medical Systems Corp | Endoscope |
JP2015019748A (en) * | 2013-07-17 | 2015-02-02 | オリンパスメディカルシステムズ株式会社 | Endoscope |
WO2016042843A1 (en) * | 2014-09-16 | 2016-03-24 | オリンパス株式会社 | Endoscope |
JP5993530B2 (en) * | 2014-09-16 | 2016-09-14 | オリンパス株式会社 | Endoscope |
US9931024B2 (en) | 2014-09-16 | 2018-04-03 | Olympus Corporation | Endoscope |
WO2021193943A1 (en) | 2020-03-27 | 2021-09-30 | 富士フイルム株式会社 | Endoscope |
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