【０００１】[0001]
本考案は内視鏡を管腔内に挿入する際の案内として用いる内視鏡用導入補助具 に関する。 The present invention relates to an endoscope introduction aid used as a guide when inserting an endoscope into a lumen.
【０００２】[0002]
近年、内視鏡を用いて開腹せずに病んだ胆嚢を摘出する腹腔鏡下胆嚢摘出術が 行なわれるようになっている。この術式は、患者の腹部の数箇所に筒状のトラカ ールを刺入し、そのトラカールを通じて腹腔鏡や処置具等を腹腔内に導入して、 腹腔鏡観察下において病んだ胆嚢を処置具により切除するというものである。こ の術式は開腹しない低侵襲のものであるため、患者の負担が少なく、入院期間が 短くて済むという利点がある。 In recent years, laparoscopic cholecystectomy has been performed to remove a diseased gallbladder without laparotomy using an endoscope. In this surgical procedure, a tubular tracar is inserted into several points on the abdomen of a patient, and a laparoscope, a treatment tool, etc. are introduced into the abdominal cavity through the trocar to remove the sick gallbladder under laparoscopic observation. It is to be excised with a treatment tool. Since this operation method is a minimally invasive procedure that does not require laparotomy, it has the advantages of less burden on the patient and a shorter hospital stay.
【０００３】 また、最近では、この腹腔鏡下胆嚢摘出術の施行の際に軟性内視鏡を総胆管に 挿入し、経内視鏡的に総胆管結石を除去する試みも行なわれている。以下、これ について図３を参照しつつ説明する。In recent years, attempts have been made to insert a flexible endoscope into the common bile duct during the laparoscopic cholecystectomy and remove the common bile duct stone endoscopically. This will be described below with reference to FIG.
【０００４】 経内視鏡的に総胆管５４内に生じた結石を除去するために軟性内視鏡６０を胆 嚢管５２から総胆管５４へと導入していく場合は、まず、前述したように患者の 腹部５３の数箇所に筒状のトラカール５１を刺入し、そのトラカール５１を通じ て腹腔鏡や処置具等を腹腔内に導入して、腹腔鏡観察下において胆嚢５０と総胆 管５４とを結ぶ胆嚢管５２にはさみ鉗子等の処置具によって切開を加える。When the flexible endoscope 60 is introduced from the gallbladder duct 52 into the common bile duct 54 in order to remove the stones generated in the common bile duct 54 transendoscopically, first, as described above. A tubular trocar 51 is inserted into the abdomen 53 of the patient and a laparoscope, a treatment tool, etc. are introduced into the abdominal cavity through the trocar 51, and the gallbladder 50 and the common bile duct 54 are observed under the laparoscopic observation. An incision is made in the gallbladder canal 52 that connects to and with a treatment tool such as scissors.
【０００５】 次に、胆嚢管５２の切開口５５をダイレータで拡張し、トラカール５１を通じ て導入された内視鏡用導入補助具５６の先端側部分を把持鉗子５７で把持しなが ら誘導して切開口５５から胆嚢管５２内に差し入れる。内視鏡用導入補助具５６ の先端側部分を胆嚢管５２内に導入したら、内視鏡用導入補助具５６内を通じて 軟性内視鏡６０の挿入部を胆嚢管５２から総胆管５４へと導入していくものであ る。そして、軟性内視鏡６０の内部を通じて図示しないバスケット状の把持鉗子 を総胆管５４内に導入し、この把持鉗子によって総胆管５４内の結石の砕石、把 持、回収等を行なうものである。Next, the incision 55 of the gallbladder canal 52 is expanded with a dilator, and the distal end portion of the endoscopic introduction assisting device 56 introduced through the trocar 51 is guided while being grasped by the grasping forceps 57. And insert it into the gallbladder duct 52 through the incision 55. After the distal end portion of the endoscopic introduction assisting device 56 is introduced into the gallbladder duct 52, the insertion portion of the flexible endoscope 60 is introduced from the gallbladder duct 52 into the common bile duct 54 through the endoscopic introducing aid 56. It will be done. Then, a basket-like grasping forceps (not shown) is introduced into the common bile duct 54 through the flexible endoscope 60, and the grasping forceps performs crushing, grasping, recovery, etc. of calculi in the common bile duct 54.
【０００６】 一方、胆嚢管をダイレータで拡張した後、内視鏡用導入補助具５６を使用しな いで軟性内視鏡６０の挿入部を把持鉗子５７によって直接に胆嚢管５２の切開口 ５５に挿入していく方法もある。この場合、軟性内視鏡６０の挿入部を把持鉗子 ５７で直接に把持すると挿入部を破損させたり、故障の原因となることがあるた め、図４に示すような内視鏡把持部材６５を使用する。この内視鏡把持部材６５ は、軟性内視鏡６０の挿入部を挿通できる挿通口６９を有する筒状部６５ａと、 この筒状部６５ａの外側面に突設された処置具把持部６５ｂとを有しており、軟 性内視鏡６０の挿入部を挿通口６９に通した状態で、処置具把持部６５ｂを把持 鉗子５７でつかんで、軟性内視鏡６０の挿入部を胆嚢管５２の切開口５５に誘導 するものである。On the other hand, after expanding the gallbladder canal with a dilator, the insertion part of the flexible endoscope 60 is directly inserted into the incision 55 of the gallbladder canal 52 by the grasping forceps 57 without using the endoscope introduction assisting device 56. There is also a way to insert it. In this case, if the grasping forceps 57 directly grasps the insertion portion of the flexible endoscope 60, it may damage the insertion portion or cause a failure. Therefore, the endoscope grasping member 65 as shown in FIG. To use. The endoscope holding member 65 includes a tubular portion 65a having an insertion opening 69 through which the insertion portion of the flexible endoscope 60 can be inserted, and a treatment instrument holding portion 65b provided on the outer surface of the tubular portion 65a. In the state where the insertion portion of the flexible endoscope 60 is passed through the insertion port 69, the treatment tool grip portion 65b is grasped by the grasping forceps 57, and the insertion portion of the flexible endoscope 60 is fixed to the gallbladder duct 52. It is guided to the incision 55.
【０００７】[0007]
ところが、胆嚢管５２の切開口５５を通じて胆嚢管５２内にその先端側部分を 挿入した内視鏡用導入補助具５６内に軟性内視鏡６０を挿通していく際、軟性内 視鏡６０の先端が内視鏡用導入補助具５６の内壁を押すことにより、内視鏡用導 入補助具５６が胆嚢管５２の切開口５５から簡単に抜け落ちてしまうことがあっ た。 However, when the flexible endoscope 60 is inserted through the endoscope introduction aid 56 in which the distal end portion is inserted into the gallbladder duct 52 through the incision 55 of the gallbladder duct 52, When the tip pushes the inner wall of the endoscopic introduction assisting tool 56, the endoscopic introducing aid 56 may easily fall out of the incision 55 of the gallbladder duct 52.
【０００８】 このように内視鏡用導入補助具５６が胆嚢管５２の切開口５５から抜け落ちて しまうと、再び内視鏡用導入補助具５６を把持鉗子５７によって切開口５５に挿 入しなければならず、手術時間が長くなって術者と患者に大きな負担を与えるこ とになる。When the endoscopic introduction assisting tool 56 falls off from the incision 55 of the gallbladder tube 52 in this manner, the endoscopic introducing aid 56 must be inserted into the incision 55 again by the grasping forceps 57. Therefore, the operation time becomes long, which puts a heavy burden on the operator and the patient.
【０００９】 また、内視鏡用導入補助具５６を使用することなく軟性内視鏡６０の挿入部を 直接に胆嚢管５２の切開口５５に挿入する場合、把持鉗子５７は、内視鏡把持部 材６５の処置具把持部６５ｂの部位しか把持することができないため、軟性内視 鏡６０の挿入部を胆嚢管５２の切開口５５へ誘導する際の操作性が悪いという問 題があった。In addition, when the insertion portion of the flexible endoscope 60 is directly inserted into the incision 55 of the gallbladder duct 52 without using the endoscopic introduction assisting tool 56, the grasping forceps 57 is used to grasp the endoscope. Since only the site of the treatment instrument gripping portion 65b of the member 65 can be gripped, there is a problem that the operability when guiding the insertion portion of the flexible endoscope 60 to the incision 55 of the gallbladder duct 52 is poor. .
【００１０】 本考案は上記事情に着目してなされたものであり、その目的とするところは、 内視鏡の誘導操作が安全かつ容易で、差し込んだ生体管腔内に確実に係止できる 内視鏡用導入補助具を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to guide and operate the endoscope safely and easily, and to securely lock the endoscope in the inserted living body lumen. It is to provide an introduction aid for an endoscope.
【００１１】[0011]
上記課題を解決するために、本考案は、内視鏡が挿通可能な筒状の案内管を有 し、この案内管の先端側部分を生体の管腔内に挿入した状態で前記案内管の内孔 を通じて内視鏡を前記管腔内に導入する内視鏡用導入補助具において、可撓性を 有する内管と、この内管の外周にその内管の長手方向へ移動自在に被嵌された外 管とから前記案内管を構成し、前記内管の外周面に突設され内管に沿う外管の移 動に伴って外管の内面下に取り込まれて押圧される突出部と、内管の先端縁から 長手方向に切り込まれ、前記突出部を押圧する外管の押圧力によって閉じて、内 管の先端側部分を先細り変形させる少なくとも１つのスリットと、内管の先端部 外周面に突設され生体の管腔に係止する係止部とを具備したものである。 In order to solve the above problems, the present invention has a tubular guide tube through which an endoscope can be inserted, and the distal end portion of the guide tube is inserted into the lumen of a living body. In an endoscope introduction assisting tool for introducing an endoscope into the lumen through an inner hole, a flexible inner tube and an outer circumference of the inner tube are movably fitted in the longitudinal direction of the inner tube. A guide portion that is formed of the outer pipe and a protruding portion that is projectingly provided on the outer peripheral surface of the inner pipe and that is taken in and pressed below the inner surface of the outer pipe when the outer pipe moves along the inner pipe. , At least one slit that is cut in the longitudinal direction from the tip edge of the inner tube, and is closed by the pressing force of the outer tube that presses the protruding portion, and the tip side portion of the inner tube is tapered and deformed; And a locking portion that projects from the outer peripheral surface and locks in the lumen of the living body.
【００１２】[0012]
突出部が外管の内面下に取り込まれると、外管はその内面によって突出部を押 圧する。外管の内面が突出部を押圧する押圧力は、内管のスリットを閉じるよう に潰し、内管の先端側部分を先細り変形させる。また逆に、外管を手元側に移動 させると、突出部に作用する外管の押圧力が解除されるため、内管の先端側部分 は径方向外側に弾性的に広がり元の状態に戻る。この時、内管の先端部外周面に 突設された係止部が管腔の内壁に食い込み、内管が管腔に係止される。 When the projection is taken under the inner surface of the outer tube, the outer tube presses the projection by the inner surface. The pressing force with which the inner surface of the outer pipe presses the protruding portion crushes the slit of the inner pipe so as to close it, and the tip side portion of the inner pipe is tapered and deformed. On the contrary, when the outer tube is moved to the proximal side, the pressing force of the outer tube acting on the protruding part is released, so the tip side part of the inner tube elastically expands radially outward and returns to the original state. . At this time, the locking portion projecting from the outer peripheral surface of the distal end portion of the inner tube bites into the inner wall of the lumen, and the inner tube is locked in the lumen.
【００１３】[0013]
以下、図面を参照しつつ本考案の一実施例を説明する。図１の（ａ）に示すよ うに、本実施例の内視鏡用導入補助具１は、管腔内に挿入され図示しない内視鏡 の挿入部を挿通できる筒状の案内管２を有している。この案内管２は可撓性を有 する樹脂材によって形成された内管４と外管６とからなる。外管６は内管４の外 周に内管４の長手方向に移動自在に被嵌されている。 An embodiment of the present invention will be described below with reference to the drawings. As shown in (a) of FIG. 1, the endoscope introduction assisting tool 1 of this embodiment has a tubular guide tube 2 that is inserted into a lumen and can be inserted through an insertion portion of an endoscope (not shown). is doing. The guide tube 2 includes an inner tube 4 and an outer tube 6 formed of a flexible resin material. The outer tube 6 is fitted on the outer circumference of the inner tube 4 so as to be movable in the longitudinal direction of the inner tube 4.
【００１４】 内管４は、内視鏡の挿入部を自在に挿通できる内径を有している。また、内管 ４の先端部外周面には生体の管腔に係止する係止部８が突設されている。この係 止部８は、先細りのテーパ面８ａを有し、基端縁であるテーパ面８ａの手元側部 分が管腔の内壁に食い込む鋭利な尖状部８ｂとなっている。The inner tube 4 has an inner diameter that allows the insertion portion of the endoscope to be freely inserted therethrough. Further, a locking portion 8 that locks in the lumen of the living body is provided on the outer peripheral surface of the distal end portion of the inner tube 4. The locking portion 8 has a tapered taper surface 8a, and the proximal side portion of the taper surface 8a which is the base edge is a sharp pointed portion 8b which bites into the inner wall of the lumen.
【００１５】 また、内管４の先端縁からは長手方向に向かって４つのスリット１２…が切り 込まれている。図１の（ｃ）に示すように、各スリット１２…は内管の周方向に ９０°の角度間隔をおいて設けられている。また、スリット１２の終端部分が位 置する内管４の外周面部位には径方向に突出した突出部１０が略全周にわたって 設けられている。この突出部１０は案内管２の長手方向に沿うその両側部分がな だらかな傾斜を有するテーパ面１０ａ，１０ｂとなっている。そして、このテー パ面１０ａ，１０ｂによって、突出部１０より基端側に位置する外管６を内管４ に沿って前方に移動させた際、突出部１０が外管６の内面下にスムーズに取り込 まれるようになっている。Further, four slits 12 ... Are cut from the tip edge of the inner tube 4 in the longitudinal direction. As shown in FIG. 1C, the slits 12 ... Are provided at an angular interval of 90 ° in the circumferential direction of the inner tube. Further, a projecting portion 10 projecting in the radial direction is provided over substantially the entire circumference at the outer peripheral surface portion of the inner pipe 4 where the end portion of the slit 12 is located. The protruding portion 10 has tapered surfaces 10a and 10b having gentle slopes on both sides thereof along the longitudinal direction of the guide tube 2. When the outer pipe 6 located on the base end side of the protruding portion 10 is moved forward along the inner pipe 4 by the taper surfaces 10a and 10b, the protruding portion 10 smoothly moves below the inner surface of the outer pipe 6. It is designed to be incorporated into.
【００１６】 なお、内管４の基端部には内管４の内部に内視鏡の挿入部を導入する開口とし ての口金部材１６が設けられている。口金部材１６の内周面には内管４の内部に 導入される内視鏡の挿入部と内管４との間を気密状態に保持する環状のシール部 材１８が嵌着されている。また、外管６の基端部には外管６を内管４に沿って移 動させるスライド部材１４が設けられている。A base member 16 is provided at the base end portion of the inner tube 4 as an opening for introducing the insertion portion of the endoscope into the inner tube 4. An annular seal member 18 is fitted on the inner peripheral surface of the mouthpiece member 16 so as to maintain an airtight state between the insertion portion of the endoscope introduced into the inner tube 4 and the inner tube 4. A slide member 14 for moving the outer pipe 6 along the inner pipe 4 is provided at the base end of the outer pipe 6.
【００１７】 次に、上記構成の内視鏡用導入補助具１の動作を説明する。まず、外管６の先 端を突出部１０よりも基端側に位置させた図１の（ａ）に示す状態からスライド 部材１４を前方に移動させると、外管６はその先端側の内面が突出部１０の基端 側テーパ面１０ｂに沿うように移動され、これによって、突出部１０が外管６の 内面下に取り込まれ、外管６がその内面によって突出部１０の基端側テーパ面１ ０ｂを押圧する。この場合、突出部１０はスリット１２の終端部分が位置する内 管４の外周面部位に設けられているため、外管６の内面が突出部１０の基端側テ ーパ面１０ｂを押圧する押圧力は、内管４のスリット１２を閉じるように潰し、 内管４の先端側部分を図１の（ｂ），（ｃ）に示すように先細り変形させる。つ まり、外管６の先端側部分が突出部１０に乗り上がるように移動して、内管４の 先端側部分がスリット１２の終端部分をヒンジとして径方向内側に内向するもの である。Next, the operation of the endoscope introduction assisting tool 1 having the above-described configuration will be described. First, when the slide member 14 is moved forward from the state shown in FIG. 1A in which the front end of the outer tube 6 is located closer to the base end side than the protruding portion 10, the outer tube 6 has an inner surface on the distal end side. Is moved along the base end side taper surface 10b of the protrusion 10, whereby the protrusion 10 is taken under the inner surface of the outer tube 6, and the outer tube 6 is tapered by the inner surface of the outer tube 6. Press the surface 10b. In this case, since the protruding portion 10 is provided on the outer peripheral surface portion of the inner tube 4 where the end portion of the slit 12 is located, the inner surface of the outer tube 6 presses the base end side taper surface 10b of the protruding portion 10. The pressing force crushes the slit 12 of the inner tube 4 so as to close it, and the tip side portion of the inner tube 4 is tapered and deformed as shown in FIGS. 1B and 1C. That is, the tip side portion of the outer tube 6 moves so as to ride on the protruding portion 10, and the tip side portion of the inner tube 4 is directed radially inward with the terminal end portion of the slit 12 as a hinge.
【００１８】 この状態で、内視鏡用導入補助具１を腹部からトラカールを介して腹腔内に導 入し、図示しない把持部材の誘導によって内視鏡用導入補助具１をダイレータで 拡張された胆嚢管３０の切開口３３から胆嚢管３０内に導入する。なお、ダイレ ータによる切開口３３の拡張は内管４の内径程度になるまで行なっておけばよい 。 内視鏡用導入補助具１の内管４の先端側部分を胆嚢管３０内にある程度導入 した状態で、今度は、スライド部材１４を介して外管６を手元側に移動させる。 これによって、突出部１０の基端側テーパ面１０ｂに作用する外管６の押圧力が 解除されるため、内管４の先端側部分はスリット１２の終端部分をヒンジとして 径方向外側に弾性的に広がり、図１の（ａ）に示す元の状態に戻る。この時、内 管４の先端外周面に突設された係止部８の尖状部８ｂが図２に示すように胆嚢管 ３０の内壁に食い込み、内管４が胆嚢管３０に係止される。その後、内管４の基 端部に設けられた口金部材１６から内管４内に内視鏡を挿通し、この内視鏡を胆 嚢管３０内に挿入する。In this state, the endoscopic introduction assisting tool 1 was introduced into the abdominal cavity from the abdomen through the trocar, and the endoscopic introducing aid 1 was expanded by a dilator by guiding a gripping member (not shown). It is introduced into the gallbladder duct 30 through the incision 33 of the gallbladder duct 30. The cutting opening 33 may be expanded by the dilator until the inner diameter of the inner tube 4 is about the same. With the distal end portion of the inner tube 4 of the endoscope introduction aid 1 introduced into the gallbladder tube 30 to some extent, the outer tube 6 is moved to the proximal side through the slide member 14 this time. As a result, the pressing force of the outer pipe 6 that acts on the base end side tapered surface 10b of the protrusion 10 is released, so that the tip end side portion of the inner pipe 4 is elastically radially outward with the end portion of the slit 12 as a hinge. , And returns to the original state shown in FIG. At this time, the pointed portion 8b of the engaging portion 8 protruding from the outer peripheral surface of the distal end of the inner duct 4 bites into the inner wall of the gallbladder duct 30 as shown in FIG. 2, and the inner duct 4 is locked to the gallbladder duct 30. It After that, the endoscope is inserted into the inner tube 4 from the mouthpiece member 16 provided at the proximal end of the inner tube 4, and the endoscope is inserted into the gallbladder tube 30.
【００１９】 以上説明したように、本実施例の内視鏡用導入補助具１は、内管４の径方向外 側に突き出る係止部８によって内管４の先端側部分を胆嚢管３０に対して確実に 係止することができるため、内視鏡用導入補助具１内に内視鏡を挿通していく際 、この内視鏡の先端が内視鏡用導入補助具１の内壁を押すことにより、内視鏡用 導入補助具１が胆嚢管３０の切開口３３から抜け落ちてしまうことがない。また 、係止部８の径方向への突出は、外管６をスライドさせることによる内管４の先 端側部分の拡張・縮小動作によって術者が自在にコントロールできるので、内視 鏡用導入補助具１の胆嚢管切開口３３への挿入、抜去が容易に行なえる。したが って、手術時間を短縮できるとともに、術者、患者への負担を軽減でき、内視鏡 の誘導操作が安全かつ容易となる。As described above, in the endoscopic introduction assisting tool 1 of the present embodiment, the distal end portion of the inner tube 4 is fixed to the gallbladder tube 30 by the locking portion 8 projecting outward in the radial direction of the inner tube 4. Since it can be securely locked with respect to the endoscope, when the endoscope is inserted into the endoscope introduction assisting tool 1, the tip of the endoscope is fixed to the inner wall of the endoscope introducing assist tool 1. By pushing, the endoscopic introduction assisting tool 1 does not fall out from the incision 33 of the gallbladder duct 30. Further, the radial protrusion of the locking portion 8 can be freely controlled by the operator by the expansion / contraction operation of the distal end side portion of the inner tube 4 by sliding the outer tube 6, so that the endoscope can be introduced. The assisting tool 1 can be easily inserted into and removed from the gallbladder canal opening 33. Therefore, the operation time can be shortened, the burden on the operator and the patient can be reduced, and the guide operation of the endoscope becomes safe and easy.
【００２０】 なお、本実施例では、外管６を全長にわたって一体の可撓性チューブとしたが 、外管６の先端側部分を硬性の例えば金属で形成してもよい。この場合、外管６ の先端側部分が突出部１０を押圧することによって外管６の先端側部分が伸展し てまうのを防ぐことができるため、内管の先端側部分の拡張・縮小動作が良好と なる。In the present embodiment, the outer tube 6 is an integral flexible tube over the entire length, but the tip side portion of the outer tube 6 may be formed of a hard metal such as metal. In this case, it is possible to prevent the tip side portion of the outer tube 6 from extending and contracting by pressing the protrusion 10 by the tip side portion of the outer tube 6. Will be good.
【００２１】[0021]
以上説明したように、本考案の内視鏡用導入補助具は、内管の径方向外側に突 き出る係止部によって内管の先端側部分を管腔に対して確実に係止することがで きるため、内視鏡用導入補助具内に内視鏡を挿通していく際、この内視鏡の先端 が内視鏡用導入補助具の内壁を押すことにより、内視鏡用導入補助具が管腔から 抜け落ちてしまうことがない。また、係止部の径方向への突出は、外管をスライ ドさせることによる内管の先端側部分の拡張・縮小動作によって術者が自在にコ ントロールできるので、内視鏡用導入補助具の管腔に対する挿入、抜去が容易に 行なえる。したがって、手術時間を短縮できるとともに、術者、患者への負担を 軽減でき、内視鏡の誘導操作が安全かつ容易となる。 As described above, the introduction aid for an endoscope of the present invention ensures that the distal end portion of the inner tube is securely locked to the lumen by the locking portion that projects radially outward of the inner tube. Therefore, when the endoscope is inserted into the endoscope introduction assisting tool, the tip of the endoscope pushes the inner wall of the endoscope introducing aid to introduce the endoscope. The assistive device does not fall out of the lumen. Further, the radial projection of the locking portion allows the operator to freely control by the expansion / contraction operation of the distal end side portion of the inner tube by sliding the outer tube, so that the insertion aid for the endoscope can be controlled. It can be easily inserted into and removed from the lumen. Therefore, the operation time can be shortened, the burden on the operator and the patient can be reduced, and the guide operation of the endoscope becomes safe and easy.
【図面の簡単な説明】[Brief description of drawings]
【図１】（ａ）は本考案の第１の実施例を示す内視鏡用
導入補助具の部分断面図、（ｂ）は（ａ）の内視鏡用導
入補助具の先端側部分の拡大断面図、（ｃ）は先端を先
細状に変形させた状態の内視鏡用導入補助具の斜視図で
ある。FIG. 1 (a) is a partial cross-sectional view of an endoscope introduction assisting tool showing a first embodiment of the present invention, and FIG. 1 (b) is a distal side portion of the endoscope introduction assisting tool of (a). An enlarged cross-sectional view, (c) is a perspective view of the endoscope introduction assisting tool with the distal end deformed in a tapered shape.
【図２】図１の内視鏡用導入補助具の実施態様を示す説
明図である。FIG. 2 is an explanatory view showing an embodiment of the endoscope introduction assisting tool of FIG.
【図３】従来の内視鏡用導入補助具の実施態様を示す説
明図である。FIG. 3 is an explanatory view showing an embodiment of a conventional endoscope introduction assisting tool.
【図４】従来の内視鏡把持部材の使用方法を示す説明図
である。FIG. 4 is an explanatory diagram showing a method of using a conventional endoscope holding member.
１…内視鏡用導入補助具、２…案内管、４…内管、６…
外管、８…係止部、１０…突出部、１２…スリット。DESCRIPTION OF SYMBOLS 1 ... Introduction aid for endoscopes, 2 ... Guide tube, 4 ... Inner tube, 6 ...
Outer tube, 8 ... Locking portion, 10 ... Projection portion, 12 ... Slit.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4548592UJPH065601U (en) | 1992-06-30 | 1992-06-30 | Introduction aid for endoscopes |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4548592UJPH065601U (en) | 1992-06-30 | 1992-06-30 | Introduction aid for endoscopes |
| Publication Number | Publication Date |
|---|---|
| JPH065601Utrue JPH065601U (en) | 1994-01-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4548592UWithdrawnJPH065601U (en) | 1992-06-30 | 1992-06-30 | Introduction aid for endoscopes |
| Country | Link |
|---|---|
| JP (1) | JPH065601U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007512078A (en)* | 2003-11-21 | 2007-05-17 | エシコン・エンド−サージェリィ・インコーポレイテッド | Anatomical tubular structure diagnostic device |
| JP2009543660A (en)* | 2006-07-14 | 2009-12-10 | ウィルソン−クック・メディカル・インコーポレーテッド | Nipple dilator |
| JP2011500158A (en)* | 2007-10-09 | 2011-01-06 | ウィルソン−クック・メディカル・インコーポレーテッド | System, apparatus, and method having an overtube for access to a body opening |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007512078A (en)* | 2003-11-21 | 2007-05-17 | エシコン・エンド−サージェリィ・インコーポレイテッド | Anatomical tubular structure diagnostic device |
| JP2011104399A (en)* | 2003-11-21 | 2011-06-02 | Ethicon Endo Surgery Inc | Diagnostic device for tubular anatomical structures |
| JP2009543660A (en)* | 2006-07-14 | 2009-12-10 | ウィルソン−クック・メディカル・インコーポレーテッド | Nipple dilator |
| JP2011500158A (en)* | 2007-10-09 | 2011-01-06 | ウィルソン−クック・メディカル・インコーポレーテッド | System, apparatus, and method having an overtube for access to a body opening |
| Publication | Publication Date | Title |
|---|---|---|
| JP7477548B2 (en) | Hemostatic clip | |
| CA2080766C (en) | Endoscopic tissue manipulator | |
| US6149642A (en) | Surgical instrument and method for use in hand-assisted laparoscopy | |
| US6358198B1 (en) | Laparoscopic/thorascopic support device | |
| US5304183A (en) | Tethered clamp retractor | |
| US5984932A (en) | Suturing instrument with one or more spreadable needle holders mounted for arcuate movement | |
| US5683349A (en) | Laparoscopic dissection tension retractor device and method | |
| US5415666A (en) | Tethered clamp retractor | |
| US5190561A (en) | Tissue and organ extractor | |
| US5782845A (en) | Trocar site suturing device | |
| US5297536A (en) | Method for use in intra-abdominal surgery | |
| EP2277464B1 (en) | Surgical port and frangible introducer assembly | |
| US8118736B2 (en) | Method of accessing a bladder and associated apparatus therefor | |
| US20090270789A1 (en) | Suction dome for atraumatically grasping or manipulating tissue | |
| US20030236549A1 (en) | Surgical instrument | |
| EP0537758A1 (en) | A tissue gripping apparatus for use with a cannula or trocar assembly | |
| EP1303222A1 (en) | A cannula | |
| JPH05146448A (en) | Trolley curl assembly | |
| WO1996025107A1 (en) | Miniature endoscopic surgical instrument assembly and method of use | |
| JPH04226620A (en) | Surgical trocar | |
| JPH06217987A (en) | Nonexternal wound type endoscope device | |
| US20020091301A1 (en) | Retractor with memory | |
| JPH065601U (en) | Introduction aid for endoscopes | |
| US20230054185A1 (en) | Over the scope clip with compliant mechanism | |
| JPH10272139A (en) | Guide aid tool |
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed | Free format text:JAPANESE INTERMEDIATE CODE: A300 Effective date:19961003 |