JPH0513460U - Endoscope catheter - Google Patents
Endoscope catheterInfo
- Publication number
- JPH0513460U JPH0513460U JP062861U JP6286191U JPH0513460U JP H0513460 U JPH0513460 U JP H0513460U JP 062861 U JP062861 U JP 062861U JP 6286191 U JP6286191 U JP 6286191U JP H0513460 U JPH0513460 U JP H0513460U
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- small holes
- catheter
- wall surface
- distal end
- 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.)
- Withdrawn
Links
Abstract
(57)【要約】
【目的】本考案は、生体管路等の管腔壁面への接触や異
物による開口部のつまりが少なく、確実に目的部位の吸
引を行なうことを最も主要な特徴とする。
【構成】可撓管１の先端から１５mmの範囲の周壁面の少
なくとも一部に、周壁面全周に亙って配置された複数の
小孔８ａ…，８ｂ…が形成された側孔部７を設け、この
側孔部７の全小孔８ａ…，８ｂ…の総開口面積を、可撓
管１の先端開口部６の開口面積と略同一に設定したこと
を特徴としている。
(57) [Summary] [Purpose] The present invention is characterized mainly in that the suction of a target site is surely performed with less contact with a lumen wall surface of a living body duct or the like and clogging of an opening due to a foreign substance. . [Structure] A side hole portion 7 in which a plurality of small holes 8a ..., 8b ... Arranged over the entire circumference of the peripheral wall surface are formed on at least a part of the peripheral wall surface within a range of 15 mm from the tip of the flexible tube 1. , And the total opening area of all the small holes 8a ..., 8b ... Of the side hole portion 7 is set to be substantially the same as the opening area of the distal end opening portion 6 of the flexible tube 1.
Description
【０００１】[0001]
本考案は、経内視鏡的に体腔内へ導入し、体腔内へ液を注入したり、体腔内か ら体液を回収したりする内視鏡用カテーテルに関する。 The present invention relates to an endoscope catheter which is introduced endoscopically into a body cavity, injects a fluid into the body cavity, and recovers a body fluid from the body cavity.
【０００２】[0002]
従来から内視鏡用カテーテルとしては先端に開口を有する可撓性を備えたチュ ーブが用いられている。そして、この可撓性チューブは体腔内へ造影剤等の液体 を注入する際に使用されるほかに、例えば胆管や膵管などに挿入され、手元側で 吸引して胆汁や膵液を採取する際にもしばしば使用される。 BACKGROUND ART Conventionally, a flexible tube having an opening at its tip has been used as an endoscope catheter. This flexible tube is used not only when injecting a liquid such as a contrast agent into a body cavity, but also when it is inserted into, for example, the bile duct or pancreatic duct, and suctioned at the proximal side to collect bile or pancreatic juice. Is also often used.
【０００３】 ところで、この種の内視鏡用カテーテルとして例えば実公平１−１９９６０号 公報のようにチューブの周壁面に比較的大きな側孔を設けたものや、実公平２− ２１０７６号公報のようにチューブの周壁面に上下の側孔を設けたもの、或いは 特開昭６１−７９４６６号公報，特開平２−２３９８７５号公報のようにチュー ブの周壁面における軸心方向に比較的長い範囲にわたって側孔を設けたものが知 られている。By the way, as an endoscope catheter of this type, for example, one having a relatively large side hole provided on the peripheral wall surface of a tube, as in Japanese Utility Model Publication No. 1-196060, and Japanese Utility Model Publication No. 2-21076. A tube having upper and lower side holes on the peripheral wall surface, or over a relatively long range in the axial direction on the peripheral wall surface of the tube as disclosed in JP-A-61-79466 and JP-A-2-239875. It is known that a side hole is provided.
【０００４】[0004]
しかしながら、先端にのみ開口しているチューブでは吸引作業中にこのチュー ブの先端開口部に例えば胆石等がつまったり、或いはこのチューブの先端開口部 が生体管路等の管腔壁面との接触によって閉鎖された場合にはこのチューブを介 して体液の吸引が行なえなくなる問題があった。 However, with a tube that is only open at the tip, gallstones, etc., may become stuck in the tip opening of this tube during suction work, or the tip opening of this tube may come into contact with the wall surface of the lumen such as a living body duct. When closed, there was a problem that body fluid could not be aspirated through this tube.
【０００５】 また、チューブに先端開口部の他に、このチューブの周壁面に側孔を設けたも のでも実公平１−１９９６０号公報のようにチューブの周壁面に大きな側孔を設 けたものでは吸引作業中に、この側孔に胆石等の異物がつまり、吸引作業が不能 になることがあった。In addition to the distal end opening of the tube, a side hole is provided on the peripheral wall surface of the tube, but a large side hole is provided on the peripheral wall surface of the tube as disclosed in Japanese Utility Model Publication No. 1-19960. However, during suction work, foreign substances such as gallstones could get stuck in this side hole, making suction work impossible.
【０００６】 さらに、実公平２−２１０７６号公報のようにチューブの周壁面における二方 向にのみ側孔を形成した場合には同様に、吸引作業中に、このチューブの側孔が 生体管路等の管腔壁面に接触して閉鎖されたり、胆石等の異物のつまりが発生し 、吸引作業ができなくなるおそれがあった。Further, when the side holes are formed only in two directions on the peripheral wall surface of the tube as in Japanese Utility Model Publication No. 21076/1990, the side holes of the tube are similarly formed during the suction work. There was a risk that the suction work could not be performed due to contact with the wall surface of the lumen, etc., resulting in closure, or foreign matter such as gallstones clogged.
【０００７】 また、特開昭６１−７９４６６号公報，特開平２−２３９８７５号公報のよう にチューブの周壁面における軸心方向に比較的長い範囲に亙り複数の側孔が形成 されているものでは、例えば生体管路内の目的の管腔内にカテーテルの先端部を 挿入した際にチューブの周壁面に形成されている側孔の一部が目的の管腔内に正 しく挿入されないおそれがあった。このようにチューブの周壁面に形成されてい る側孔の一部が目的部位の管腔の外に残されたままの状態で、体液の吸引作業が 行なわれた場合には所望する目的部位の管腔内の体液中に、管腔外に残された側 孔部分から吸引される管腔外の体液が混入してしまうおそれがあるので、目的部 位の管腔内の体液を正しく採取することができなくなる問題があった。Further, in the case where a plurality of side holes are formed over a relatively long range in the axial direction on the peripheral wall surface of the tube as in JP-A-61-79466 and JP-A-2-239875. For example, when the tip of the catheter is inserted into the target lumen in the body lumen, some of the side holes formed on the peripheral wall surface of the tube may not be correctly inserted into the target lumen. It was In this way, when a body fluid is aspirated while some of the side holes formed on the peripheral wall surface of the tube are left outside the lumen of the target site, the desired target site The body fluid in the lumen may be mixed with the body fluid inhaled outside the lumen that is aspirated from the side hole, so collect the body fluid in the lumen at the target site correctly. There was a problem that I could not.
【０００８】 本考案は上記事情に着目してなされたもので、生体管路等の管腔壁面への接触 や胆石等の異物による開口部のつまりが少なく、確実に目的部位の体液等の吸引 が行なえる内視鏡用カテーテル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 circumstances. As a result, contact with the lumen wall surface of a living body duct or the like and foreign matter such as gallstones do not cause clogging of the opening, so that body fluid or the like at a target site can be reliably sucked. It is an object of the present invention to provide an endoscope catheter capable of performing
【０００９】[0009]
本考案は可撓管の先端から１５mmの範囲の周壁面の少なくとも一部に、上記周 壁面全周に亙って配置された複数の小孔が形成された側孔部を設け、この側孔部 の全小孔の総開口面積を、上記可撓管の先端開口部の開口面積と略同一に設定し たものである。 According to the present invention, at least a part of the peripheral wall surface within a range of 15 mm from the distal end of the flexible tube is provided with a side hole portion having a plurality of small holes arranged all around the peripheral wall surface. The total opening area of all small holes in the section is set to be substantially the same as the opening area of the distal end opening of the flexible tube.
【００１０】[0010]
上記の構成において、吸引作業中、可撓管の先端開口部に結石等の異物が詰ま ったり、可撓管の先端開口部や側孔部の一部の小孔が管腔壁面との接触によって 閉鎖された場合であっても側孔部の残りの小孔を通して確実に目的部位の体液等 の吸引するとともに、可撓管の先端開口部の閉鎖時にはこの先端開口部の開口面 積と略同一の総開口面積をもつ側孔部の小孔を通して十分な吸引能力を得るよう にしたものである。 In the above configuration, foreign substances such as calculi are stuck in the tip opening of the flexible tube during suction work, and some small holes in the tip opening and side holes of the flexible tube come into contact with the lumen wall surface. Even if it is closed by the above, the body fluid etc. at the target site can be surely sucked through the remaining small holes in the side hole, and when closing the tip opening of the flexible tube, the opening area of this tip opening is almost It is designed to obtain a sufficient suction capacity through small holes on the side holes that have the same total opening area.
【００１１】[0011]
以下、この考案の第１の実施例を図１および図２を参照して説明する。図２は 内視鏡用カテーテル全体の概略構成を示すもので、１は可撓管である。この可撓 管１の基端部には手元側の連結部材２が連結されている。この連結部材２には送 吸液口金３が突設されているとともに、可撓管１内に挿入されるスタイレット４ が装着されている。 A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 2 shows a schematic configuration of the entire endoscope catheter, and 1 is a flexible tube. A connection member 2 on the proximal side is connected to the proximal end portion of the flexible tube 1. The coupling member 2 is provided with a liquid feeding / sucking mouthpiece 3 and a stylet 4 to be inserted into the flexible tube 1.
【００１２】 また、可撓管１の先端部外周面にはマーキング部５が設けられている。このマ ーキング部５には幅が３mmの３つのマーキング５ａ，５ｂ，５ｃが３mm間隔で施 されている。A marking portion 5 is provided on the outer peripheral surface of the distal end portion of the flexible tube 1. The marking 5 is provided with three markings 5a, 5b and 5c having a width of 3 mm at intervals of 3 mm.
【００１３】 さらに、図１（Ａ）に示すように可撓管１の先端開口部６側に配置された最先 端の第１のマーキング５ａと次の第２のマーキング５ｂとの間の管壁には側孔部 ７が設けられている。この側孔部７には可撓管１の管腔１ａ内に貫通する１５個 の小孔８…が規則性をもって設けられている。Further, as shown in FIG. 1 (A), the pipe between the first marking 5 a at the extreme end and the next second marking 5 b arranged on the tip opening 6 side of the flexible tube 1. A side hole 7 is provided in the wall. The side hole 7 is provided with fifteen small holes 8 ... Which penetrate into the lumen 1a of the flexible tube 1 with regularity.
【００１４】 この場合、側孔部７の複数の小孔８…は図１（Ａ）に示すように軸方向に３個 並ぶ小孔８ａ…が同図（Ｃ）に示すように外周を３等分した位置に配置され、そ の間に、２個並ぶ小孔８ｂ，８ｂが配置されている。そして、これらの小孔８ｂ ，８ｂも同図（Ｂ）に示すように外周を３等分した位置に配置されている。In this case, the plurality of small holes 8 ... Of the side hole portion 7 have three small holes 8a ... Which are arranged in the axial direction as shown in FIG. The small holes 8b, 8b arranged in two are arranged at equal positions. Further, these small holes 8b, 8b are also arranged at positions where the outer circumference is divided into three, as shown in FIG.
【００１５】 したがって、可撓管１の先端から３mmの位置と６mmの位置との間にこの可撓管 １の周壁面全周に亙ってこれらの小孔８ａ…，８ｂ…が放射状に配置された状態 で開口して設けられている。さらに、側孔部７の全ての小孔８ａ…，８ｂ…の総 開口面積は先端開口部６の開口面積と略同一に設定されている。Therefore, these small holes 8a ..., 8b ... are arranged radially between the positions 3 mm and 6 mm from the tip of the flexible tube 1 over the entire circumference of the peripheral wall surface of the flexible tube 1. It is opened in the opened state. Further, the total opening area of all the small holes 8a ..., 8b ... Of the side hole portion 7 is set to be substantially the same as the opening area of the tip opening portion 6.
【００１６】 次に、上記構成の作用について説明する。まず、内視鏡用カテーテルの使用時 には可撓管１の先端部側が内視鏡のチャンネルを介して体腔内に挿入され、例え ば十二指腸乳頭から胆管内へ導入される。Next, the operation of the above configuration will be described. First, when the endoscope catheter is used, the distal end side of the flexible tube 1 is inserted into the body cavity through the channel of the endoscope, for example, introduced from the duodenal papilla into the bile duct.
【００１７】 可撓管１の先端部側が目的の胆管内へ導入されたのち、続いて注射筒を送吸液 口金３に取り付ける。この状態で、注射筒を吸引操作すると胆管内の胆汁が可撓 管１の先端開口部６及び側孔部７の小孔８…から吸引され、可撓管１の管腔１ａ 内を通って注射筒内に採取される。その後、注射筒を取り替えて、胆管内に造影 剤を注入する。After the distal end side of the flexible tube 1 is introduced into the target bile duct, subsequently, the injection cylinder is attached to the liquid feeding / sucking mouthpiece 3. In this state, when the syringe is sucked, the bile in the bile duct is sucked from the distal end opening 6 of the flexible tube 1 and the small holes 8 of the side hole 7, and passes through the lumen 1a of the flexible tube 1. Collected in a syringe. After that, the syringe is replaced and a contrast agent is injected into the bile duct.
【００１８】 なお、胆汁を吸引採取する際に、胆管や膵管等の目的の管腔内に可撓管１の先 端を挿入する際の可撓管１の先端部の挿入量は１５mm程度が適当である。そのた め、可撓管１の先端から３mmの位置と６mmの位置との間にこの可撓管１の周壁面 全周に亙って複数の小孔８ａ…，８ｂ…を放射状に配置させた状態で設けること により、可撓管１の先端開口部６に結石がつまったり、先端開口部６や側孔部７ の一部の小孔８ａ…，８ｂ…が管腔壁面に接触して閉鎖されても、側孔部７の残 りの小孔８ａ…，８ｂ…を通して確実に胆汁を吸引することができる。When the bile is sucked and collected, the insertion amount of the distal end portion of the flexible tube 1 when inserting the distal end of the flexible tube 1 into a target lumen such as a bile duct or a pancreatic duct is about 15 mm. Appropriate. Therefore, a plurality of small holes 8a ..., 8b ... are arranged radially between the positions 3 mm and 6 mm from the tip of the flexible tube 1 over the entire circumference of the peripheral wall surface of the flexible tube 1. By providing the flexible tube 1 in such a state that the tip opening 6 of the flexible tube 1 is clogged with stones, and the small openings 8a ..., 8b ... Of the tip opening 6 and the side holes 7 contact the wall surface of the lumen. Even when the bile is closed, the bile can be surely sucked through the small holes 8a, 8b, ... remaining in the side hole portion 7.
【００１９】 さらに、側孔部７の全ての小孔８ａ…，８ｂ…の総開口面積を先端開口部６の 開口面積と略同一に設定したので、可撓管１の先端開口部６の閉鎖時にはこの先 端開口部６の開口面積と略同一の総開口面積をもつ側孔部７の小孔８ａ…，８ｂ …を通して十分な吸引能力を得ることができる。Further, the total opening area of all the small holes 8a ..., 8b ... Of the side hole portion 7 is set to be substantially the same as the opening area of the distal end opening portion 6, so that the distal end opening portion 6 of the flexible tube 1 is closed. At times, a sufficient suction capacity can be obtained through the small holes 8a ..., 8b ... Of the side hole 7 having a total opening area substantially the same as the opening area of the tip opening 6.
【００２０】 また、側孔部７の各小孔８ａ…，８ｂ…の１つ１つは先端開口部６の開口面積 に比べて開口面積が十分に小さいので、胆石がつまりにくい効果もある。さらに 、側孔部７の各小孔８ａ…，８ｂ…の位置が先端開口部６に近いので、可撓管１ を胆管や膵管等の目的の管腔内にわずかに挿入するだけで吸引することができ、 胆管下流の胆汁の吸引操作を容易に行なうことができる。Further, since each of the small holes 8a ..., 8b ... Of the side hole portion 7 has an opening area sufficiently smaller than the opening area of the tip opening portion 6, gallstones are also less likely to be clogged. Further, since the positions of the small holes 8a ..., 8b ... Of the side hole portion 7 are close to the distal end opening portion 6, the flexible tube 1 is sucked by only slightly inserting it into the target lumen such as the bile duct or the pancreatic duct. Therefore, the operation of sucking bile downstream of the bile duct can be easily performed.
【００２１】 次に、図３に示すこの考案の第２の実施例について説明する。これは、可撓管 １の先端から６mmの位置と９mmの位置との間の第２のマーキング５ｂの部分の管 壁に側孔部７を設け、この第２のマーキング５ｂの部分の可撓管１の周壁面全周 に亙って第１の実施例と同様の小孔８ａ…，８ｂ…を放射状に配置させた状態で 開口して設けたものである。Next, a second embodiment of the present invention shown in FIG. 3 will be described. This is because the side hole 7 is provided in the tube wall of the portion of the second marking 5b between the position of 6 mm and the position of 9 mm from the tip of the flexible tube 1, and the flexibility of the portion of the second marking 5b is provided. .., 8b .. are provided in the state of being arranged radially over the entire circumference of the peripheral wall surface of the tube 1 in the same manner as in the first embodiment.
【００２２】 したがって、この場合も第１の実施例と同様に可撓管１の先端開口部６に結石 がつまったり、先端開口部６や側孔部７の一部の小孔８ａ…，８ｂ…が管腔壁面 に接触して閉鎖されても、側孔部７の残りの小孔８ａ…，８ｂ…を通して確実に 胆汁等の体液を吸引することができるとともに、可撓管１の先端開口部６の閉鎖 時にはこの先端開口部６の開口面積と略同一の総開口面積をもつ側孔部７の小孔 ８ａ…，８ｂ…を通して十分な吸引能力を得ることができる。Therefore, also in this case, as in the first embodiment, calculi are clogged in the distal end opening 6 of the flexible tube 1, and the small holes 8a ..., 8b in the distal end opening 6 and the side holes 7 are formed. Even when the contact surface is closed by contacting the wall surface of the lumen, bodily fluid such as bile can be reliably sucked through the remaining small holes 8a, 8b of the side hole portion 7, and the distal end opening of the flexible tube 1 can be opened. When the portion 6 is closed, a sufficient suction capacity can be obtained through the small holes 8a, 8b, ... Of the side hole portion 7 having a total opening area substantially the same as the opening area of the tip opening portion 6.
【００２３】 また、図４はこの考案の第３の実施例を示すものである。これは、内視鏡用カ テーテルの可撓管１の先端に配置されたテーパ部１ａの後方に側孔部７を形成す るメッシュ状の管体１１を配設し、このメッシュ状管体１１の網目１１ａ…によ って側孔部７の複数の小孔を形成したものである。この場合、メッシュ状管体１ １の後端部は可撓管１の先端より１５mm以内の位置に配置されている。さらに、 メッシュ状管体１１の全ての網目１１ａ…の総開口面積は先端開口部６の開口面 積と略同一に設定されている。FIG. 4 shows a third embodiment of the present invention. This is provided with a mesh-shaped tubular body 11 forming a side hole portion 7 behind a tapered portion 1a arranged at the tip of a flexible tube 1 of an endoscope catheter, and the mesh-shaped tubular body is formed. A plurality of small holes of the side hole portion 7 are formed by the meshes 11a of 11 ... In this case, the rear end portion of the mesh tube body 11 is arranged at a position within 15 mm from the tip of the flexible tube 1. Further, the total opening area of all the meshes 11a ... Of the mesh tube body 11 is set to be substantially the same as the opening area of the tip opening portion 6.
【００２４】 したがって、この場合も第１，第２の実施例と同様に可撓管１の先端開口部６ に結石がつまったり、先端開口部６やメッシュ状管体１１の一部の網目１１ａ… が管腔壁面に接触して閉鎖されても、メッシュ状管体１１の残りの網目１１ａ… を通して確実に胆汁等の体液を吸引することができるとともに、可撓管１の先端 開口部６の閉鎖時にはこの先端開口部６の開口面積と略同一の総開口面積をもつ メッシュ状管体１１の網目１１ａ…を通して十分な吸引能力を得ることができる 。 また、図５はこの考案の第４の実施例を示すものである。これは、内視鏡用 カテーテルの可撓管１の先端から１５mmの範囲の可撓管１の周壁面全周に亙って 複数の小孔８…が形成された側孔部２１を設けたものである。この場合、側孔部 ２１の全ての小孔８…の総開口面積は先端開口部６の開口面積と略同一に設定さ れている。したがって、この場合も上記各実施例と同様の効果を得ることができ る。Therefore, in this case as well, similar to the first and second embodiments, the tip opening 6 of the flexible tube 1 is clogged with stones, and the mesh 11a of the tip opening 6 and a part of the mesh-like tubular body 11a. Even when is closed by contacting the wall surface of the lumen, bodily fluid such as bile can be reliably sucked through the remaining mesh 11a of the mesh-shaped tubular body 11, and the distal end opening 6 of the flexible tube 1 When closed, a sufficient suction capacity can be obtained through the meshes 11a ... Of the mesh-shaped tubular body 11 having a total opening area substantially the same as the opening area of the tip opening 6. FIG. 5 shows a fourth embodiment of this invention. This is provided with a side hole portion 21 in which a plurality of small holes 8 are formed over the entire circumference of the peripheral wall surface of the flexible tube 1 within a range of 15 mm from the tip of the flexible tube 1 of the endoscope catheter. It is a thing. In this case, the total opening area of all the small holes 8 ... Of the side hole portion 21 is set to be substantially the same as the opening area of the tip opening portion 6. Therefore, also in this case, it is possible to obtain the same effect as that of each of the above embodiments.
【００２５】 また、図６および図７はこの考案の第５の実施例を示すものである。これは、 内視鏡用カテーテルの可撓管１を先端側に配置されたある程度の硬さの第１のカ テーテル構成部材３１とこの第１のカテーテル構成部材３１の後端側に配置され 、第１のカテーテル構成部材３１に比べて柔軟な第２のカテーテル構成部材３２ とによって形成するとともに、先端側の第１のカテーテル構成部材３１の先端部 の周壁面全周に亙って第１の実施例と同様に１５個の小孔８…が規則性をもって 形成された側孔部７を設けたものである。6 and 7 show a fifth embodiment of the present invention. This is because the flexible tube 1 of the endoscope catheter is arranged at the distal end side of the first catheter component member 31 having a certain hardness and the rear end side of the first catheter component member 31. The second catheter forming member 32, which is more flexible than the first catheter forming member 31, and is formed over the entire circumference of the peripheral wall surface of the distal end portion of the first catheter forming member 31 on the distal end side. Similar to the embodiment, 15 small holes 8 are provided with the side hole portions 7 formed regularly.
【００２６】 この場合、先端側の第１のカテーテル構成部材３１には図７に示すように第１ のカテーテル構成部材３１の先端が胆管４１等の目的の管腔内に挿入された状態 で十二指腸４２内に配置される部分に複数の中間側孔３３…が設けられている。 この中間側孔３３…の総開口面積は第１のカテーテル構成部材３１の先端開口部 ６の開口面積と小孔８…の総開口面積とを加えた総面積とほぼ同等である。なお 、先端側の第１のカテーテル構成部材３１の長さは患者の鼻腔４３に達しない程 度、例えば第１のカテーテル構成部材３１の先端が胆管４１等の目的の管腔内に 挿入された状態でこの第１のカテーテル構成部材３１の後端が患者の胃４３内に 位置する程度の長さに設定されている。In this case, as shown in FIG. 7, the first catheter component 31 on the distal end side has the tip of the first catheter component 31 inserted into the target lumen such as the bile duct 41, etc. A plurality of intermediate holes 33 ... Are provided in a portion arranged inside 42. The total opening area of the intermediate holes 33 ... Is almost the same as the total area of the tip opening 6 of the first catheter component member 31 and the total opening area of the small holes 8. The length of the first catheter component 31 on the distal end side is set so that it does not reach the nasal cavity 43 of the patient. For example, the tip of the first catheter component 31 is inserted into the target lumen such as the bile duct 41. In this state, the length of the rear end of the first catheter constituting member 31 is set so as to be positioned inside the stomach 43 of the patient.
【００２７】 次に、上記構成の作用について説明する。まず、内視鏡用カテーテルの使用時 には可撓管１の先端側の第１のカテーテル構成部材３１を患者の口から内視鏡の チャンネルを通して体内に挿入する。Next, the operation of the above configuration will be described. First, when the endoscope catheter is used, the first catheter component member 31 on the distal end side of the flexible tube 1 is inserted into the body through the channel of the endoscope from the mouth of the patient.
【００２８】 続いて、患者の鼻腔に後端側の第２のカテーテル構成部材３２が挿入される。 この第２のカテーテル構成部材３２の先端部は患者の鼻腔内に挿入されたのち、 口から体外に導出され、ここで、この第２のカテーテル構成部材３２の先端側の 導出端部が第１のカテーテル構成部材３１の後端部に引っかけて連結される。Subsequently, the second catheter component 32 on the rear end side is inserted into the nasal cavity of the patient. The distal end of the second catheter component 32 is inserted into the nasal cavity of the patient and then led out of the body out of the mouth, where the leading end of the second catheter component 32 on the distal side is the first end. It is hooked and connected to the rear end of the catheter component member 31.
【００２９】 そして、この状態で鼻腔に通っている第２のカテーテル構成部材３２の後端部 を引っ張り操作することにより、予め患者の口から内視鏡のチャンネルを通して 体内に挿入された第１のカテーテル構成部材３１と鼻腔に通っている第２のカテ ーテル構成部材３２とが一体化される。さらに、この状態で、第１のカテーテル 構成部材３１の先端部を胆管４１内に挿入することにより、後端側の第２のカテ ーテル構成部材３２は胃４４，鼻腔４３を通り、体外へ導出された状態にセット される。Then, in this state, by pulling the rear end portion of the second catheter constituting member 32 passing through the nasal cavity, the first catheter previously inserted into the body from the mouth of the patient through the channel of the endoscope. The catheter component 31 and the second catheter component 32 passing through the nasal cavity are integrated. Further, in this state, by inserting the distal end portion of the first catheter component member 31 into the bile duct 41, the second catheter component member 32 on the rear end side passes through the stomach 44 and the nasal cavity 43 and is led out of the body. It is set to the state where it was set.
【００３０】 また、内視鏡用カテーテルの可撓管１のセット後、注射筒が第２のカテーテル 構成部材３２の後端開口部３４に取り付けられる。そして、この注射筒の吸引操 作にともない胆管４１内の胆汁が第１のカテーテル構成部材３１の先端開口部６ および小孔８…から吸引されて注射筒に採取される。After setting the flexible tube 1 of the endoscope catheter, the syringe barrel is attached to the rear end opening 34 of the second catheter component member 32. Along with the suction operation of the syringe, the bile in the bile duct 41 is sucked from the tip opening 6 and the small holes 8 of the first catheter component member 31 and collected in the syringe.
【００３１】 ここで、第２のカテーテル構成部材３２の後端開口部３４を閉塞することによ り、胆管４１内の胆汁を圧力の関係で第１のカテーテル構成部材３１の先端開口 部６および小孔８…から第１のカテーテル構成部材３１の管腔内に流入した後、 中間側孔３３…から十二指腸４２内へ流出させることができる。Here, by closing the rear end opening 34 of the second catheter forming member 32, the bile in the bile duct 41 is pressure-related, and the distal end opening 6 of the first catheter forming member 31 and After flowing into the lumen of the first catheter component member 31 through the small holes 8 ..., It can be discharged into the duodenum 42 through the intermediate hole 33.
【００３２】 なお、内視鏡用カテーテルの可撓管１を通して胆管４１内に造影剤を注入する 場合には予めこの可撓管１内に別のカテーテルが挿入されて第１のカテーテル構 成部材３１の中間側孔３３…を閉じる状態にセットされる。このセット状態で、 続いて第２のカテーテル構成部材３２に取り付けられた注射筒から造影剤を内視 鏡用カテーテルの可撓管１内に注入することにより、先端開口部６および小孔８ …から胆管４１内に造影剤が注入される。When injecting a contrast agent into the bile duct 41 through the flexible tube 1 of the endoscope catheter, another catheter is inserted into the flexible tube 1 in advance and the first catheter component member is inserted. The intermediate side holes 33 of 31 are set to be closed. In this set state, subsequently, a contrast agent is injected into the flexible tube 1 of the endoscope catheter from the injection cylinder attached to the second catheter component member 32, whereby the distal end opening 6 and the small hole 8 ... A contrast agent is injected into the bile duct 41 from.
【００３３】 そこで、上記構成のものにあっても第１の実施例と同様に可撓管１の先端開口 部６に結石がつまったり、先端開口部６や側孔部７の一部の小孔８…が管腔壁面 に接触して閉鎖されても、側孔部７の残りの小孔８…を通して確実に胆汁等の体 液を吸引することができるとともに、可撓管１の先端開口部６の閉鎖時にはこの 先端開口部６の開口面積と略同一の総開口面積をもつ側孔部７の小孔８…を通し て十分な吸引能力を得ることができる。Therefore, even in the case of the above-described structure, as in the first embodiment, the distal end opening 6 of the flexible tube 1 is clogged with stones, and the distal end opening 6 and a part of the side hole 7 are small. Even when the holes 8 ... Are contacted with the wall surface of the lumen and closed, the bodily fluid such as bile can be reliably sucked through the remaining small holes 8 of the side hole portion 7 and the distal end opening of the flexible tube 1 is opened. When the portion 6 is closed, a sufficient suction capacity can be obtained through the small holes 8 of the side hole portion 7 having a total opening area substantially the same as the opening area of the tip opening portion 6.
【００３４】 さらに、この場合には特に可撓管１の後端側に配置され、患者の鼻孔４３を通 過する第２のカテーテル構成部材３２を第１のカテーテル構成部材３１に比べて 柔軟に形成したので、可撓管１が患者の鼻孔４３を通過する際の患者の苦痛を低 減することができる。Furthermore, in this case, in particular, the second catheter component 32, which is arranged on the rear end side of the flexible tube 1 and passes through the nostril 43 of the patient, is made more flexible than the first catheter component 31. Since it is formed, the patient's pain when the flexible tube 1 passes through the nostril 43 of the patient can be reduced.
【００３５】 また、先端側の第１のカテーテル構成部材３１における第１のカテーテル構成 部材３１の先端が胆管４１等の目的の管腔内に挿入された状態で十二指腸４２内 に配置される部分に複数の中間側孔３３…を設け、第２のカテーテル構成部材３ ２の後端開口部３４を閉塞することにより、胆管４１内の胆汁を圧力の関係で第 １のカテーテル構成部材３１の先端開口部６および小孔８…から第１のカテーテ ル構成部材３１の管腔内に流入した後、中間側孔３３…から十二指腸４２内へ流 出させるようにしたので、この胆汁により十二指腸４２内における食物（特に肉 類の脂肪）の消化を促進させることができ、患者の体力の減退を防ぐことができ る。 なお、この考案は上記各実施例に限定されるものではなく、この考案の要旨を 逸脱しない範囲で種々変形実施できることは勿論である。In addition, a portion of the first catheter-constituting member 31 on the distal end side that is disposed inside the duodenum 42 in a state where the tip of the first catheter-constituting member 31 is inserted into a target lumen such as the bile duct 41 or the like. By providing a plurality of intermediate-side holes 33 ... And closing the rear end opening 34 of the second catheter component 32, the bile in the bile duct 41 is opened at the distal end of the first catheter component 31 in a pressure relationship. After flowing into the lumen of the first catheter component member 31 through the portion 6 and the small hole 8 and then flowing out into the duodenum 42 through the intermediate side hole 33, the bile causes the inside of the duodenum 42. It can accelerate the digestion of food (particularly meat fat) and prevent the patient from losing physical strength. The invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.
【００３６】[0036]
本考案によれば可撓管の先端から１５mmの範囲の周壁面の少なくとも一部に、 周壁面全周に亙って配置された複数の小孔が形成された側孔部を設け、この側孔 部の全小孔の総開口面積を、可撓管の先端開口部の開口面積と略同一に設定した ので、生体管路等の管腔壁面への接触や胆石等の異物による開口部のつまりが少 なく、確実に目的部位の体液等の吸引が行なうことができる。 According to the present invention, at least a part of the peripheral wall surface within a range of 15 mm from the tip of the flexible tube is provided with a side hole portion having a plurality of small holes arranged all around the peripheral wall surface. Since the total opening area of all small holes in the hole is set to be almost the same as the opening area of the distal end opening of the flexible tube, the opening area due to contact with the lumen wall surface of the living body canal or foreign matter such as gallstones In other words, the amount of bodily fluid or the like at the target site can be reliably suctioned with a small amount.
【図１】 この考案の第１の実施例を示すもので、
（Ａ）は内視鏡用カテーテルの要部構成を示す側面図、
（Ｂ）は（Ａ）のＨ−Ｈ線断面図、（Ｃ）は（Ａ）のＩ
−Ｉ線断面図。1 shows a first embodiment of the present invention,
(A) is a side view showing the main configuration of the endoscope catheter,
(B) is a sectional view taken along the line H-H of (A), and (C) is I of (A).
-I line sectional view.
【図２】 内視鏡用カテーテル全体の概略構成を示す側
面図。FIG. 2 is a side view showing a schematic configuration of the entire endoscope catheter.
【図３】 この考案の第２の実施例を示す要部の側面
図。FIG. 3 is a side view of an essential part showing a second embodiment of the present invention.
【図４】 この考案の第３の実施例を示す要部の側面
図。FIG. 4 is a side view of an essential part showing a third embodiment of the present invention.
【図５】 この考案の第４の実施例を示す要部の側面
図。FIG. 5 is a side view of an essential part showing a fourth embodiment of the present invention.
【図６】 この考案の第５の実施例の内視鏡用カテーテ
ル全体の概略構成を示す側面図。FIG. 6 is a side view showing a schematic configuration of the entire endoscope catheter of the fifth embodiment of the present invention.
【図７】 図６のカテーテルの使用状態を説明するため
の概略構成図。FIG. 7 is a schematic configuration diagram for explaining a usage state of the catheter of FIG.
１…可撓管，６…先端開口部，７，２１…側孔部，８，
８ａ，８ｂ…小孔，１１…メッシュ状管体（側孔部），
１１ａ…網目（小孔）。1 ... Flexible tube, 6 ... Tip opening part, 7, 21 ... Side hole part, 8,
8a, 8b ... Small holes, 11 ... Mesh tubular body (side holes),
11a ... Mesh (small holes).
Claims (1)
の少なくとも一部に、上記周壁面全周に亙って配置され
た複数の小孔が形成された側孔部を設け、この側孔部の
全小孔の総開口面積を、上記可撓管の先端開口部の開口
面積と略同一に設定したことを特徴とする内視鏡用カテ
ーテル。1. A side hole portion having a plurality of small holes arranged over the entire circumference of the peripheral wall is provided on at least a part of the peripheral wall within a range of 15 mm from the tip of the flexible tube. An endoscopic catheter characterized in that a total opening area of all small holes of the side hole portion is set to be substantially the same as an opening area of a distal end opening portion of the flexible tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP062861U JPH0513460U (en) | 1991-08-08 | 1991-08-08 | Endoscope catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP062861U JPH0513460U (en) | 1991-08-08 | 1991-08-08 | Endoscope catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0513460U true JPH0513460U (en) | 1993-02-23 |
Family
ID=13212503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP062861U Withdrawn JPH0513460U (en) | 1991-08-08 | 1991-08-08 | Endoscope catheter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0513460U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0810002A1 (en) | 1996-05-29 | 1997-12-03 | Cordis Europa N.V. | Suction catheter with preformed tip |
| EP0818180A2 (en) | 1996-07-10 | 1998-01-14 | Asahi Kogaku Kogyo Kabushiki Kaisha | Treatment accessory for endoscope |
| WO2006062023A1 (en) * | 2004-12-07 | 2006-06-15 | Nipro Corporation | Thrombus suction catheter with excellent passableness |
| WO2010027109A1 (en) * | 2008-09-08 | 2010-03-11 | Fujifilm Corporation | Endoscope system, method of using the same, assisting tool and adapter |
| WO2013047723A1 (en) * | 2011-09-30 | 2013-04-04 | オリンパスメディカルシステムズ株式会社 | Treatment device and endoscopic treatment system |
-
1991
- 1991-08-08 JP JP062861U patent/JPH0513460U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0810002A1 (en) | 1996-05-29 | 1997-12-03 | Cordis Europa N.V. | Suction catheter with preformed tip |
| EP0818180A2 (en) | 1996-07-10 | 1998-01-14 | Asahi Kogaku Kogyo Kabushiki Kaisha | Treatment accessory for endoscope |
| WO2006062023A1 (en) * | 2004-12-07 | 2006-06-15 | Nipro Corporation | Thrombus suction catheter with excellent passableness |
| JPWO2006062023A1 (en) * | 2004-12-07 | 2008-06-05 | ニプロ株式会社 | Thrombus aspiration catheter with excellent permeability |
| WO2010027109A1 (en) * | 2008-09-08 | 2010-03-11 | Fujifilm Corporation | Endoscope system, method of using the same, assisting tool and adapter |
| WO2013047723A1 (en) * | 2011-09-30 | 2013-04-04 | オリンパスメディカルシステムズ株式会社 | Treatment device and endoscopic treatment system |
| JP5544045B2 (en) * | 2011-09-30 | 2014-07-09 | オリンパスメディカルシステムズ株式会社 | Treatment instrument and endoscope treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5423764A (en) | Lavage apparatus | |
| JP2958219B2 (en) | Endoscopic ligation kit | |
| US20100240956A1 (en) | Irrigating biopsy inlet valve | |
| US5451216A (en) | Non-occluding catheter bolus | |
| JP4108153B2 (en) | Suction catheter | |
| ATE500781T1 (en) | DIAGNOSTIC CATHETER SYSTEM FOR NASOPHARYNGAL OBSTRUCTIONS | |
| US4221220A (en) | Surgical suction apparatus | |
| EP0808638A1 (en) | Catheter-introduction-sheath with occlusion balloon | |
| US12004770B2 (en) | Catheter design for use in treating pleural diseases | |
| CN105435354B (en) | Endoscopic ultrasound-guided biliary access system | |
| JP3233953B2 (en) | Catheter device | |
| US7938794B2 (en) | Airway suction spoon | |
| JPH0513460U (en) | Endoscope catheter | |
| CN111772779A (en) | Three-chamber papillary sphincterotomy | |
| JP2011010834A (en) | Catheter and medicine supply/body fluid suction system using the same | |
| CN109620313A (en) | The pipeline instrument and method for implantation being implanted into for per anum colon under scope to small intestine | |
| CA2384807A1 (en) | Rectal insertion device | |
| CN120586180A (en) | Plastic suction and irrigation tube for use with visual double-lumen endobronchial tube | |
| DE102006048463A1 (en) | Dental suction device for sucking liquids e.g. saliva, from mouth area, has cap attached with opening in detachable manner over suction opening, where pipe has pipe opening within area of suction opening, and pipe opening is covered by cap | |
| CN209713006U (en) | The pipeline instrument being implanted into for per anum colon under scope to small intestine | |
| KR101751399B1 (en) | Egress cannula | |
| JPS63181771A (en) | Catheter for bile duct | |
| CN108295354A (en) | A kind of suction type orthopedic drainage tube | |
| EP3932457A1 (en) | Tracheal catheter, intubation hose and treatment device | |
| JPH08196621A (en) | Sump tube and fluid discharge method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19951102 |