JPH0698140B2 - Endoscopic biopsy forceps - Google Patents
Endoscopic biopsy forcepsInfo
- Publication number
- JPH0698140B2 JPH0698140B2 JP61047000A JP4700086A JPH0698140B2 JP H0698140 B2 JPH0698140 B2 JP H0698140B2 JP 61047000 A JP61047000 A JP 61047000A JP 4700086 A JP4700086 A JP 4700086A JP H0698140 B2 JPH0698140 B2 JP H0698140B2
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- outer tube
- tube
- distal end
- biopsy forceps
- 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 - Fee Related
Links
- 238000001861 endoscopic biopsy Methods 0.000 title description 8
- 238000001574 biopsy Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000000013 bile duct Anatomy 0.000 description 28
- 239000002872 contrast media Substances 0.000 description 11
- 101150038956 cup-4 gene Proteins 0.000 description 4
- 210000001198 duodenum Anatomy 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 201000009036 biliary tract cancer Diseases 0.000 description 1
- 208000020790 biliary tract neoplasm Diseases 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Endoscopes (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、内視鏡の鉗子チャンネル内に挿通されて生
体腔内に導びかれ、生検組織を採取する内視鏡用生検鉗
子に関するものである。TECHNICAL FIELD The present invention relates to an endoscopic biopsy forceps that is inserted into a forceps channel of an endoscope and guided into a living body cavity to collect a biopsy tissue. It is about.
［従来の技術］ 従来、この種内視鏡用生検鉗子は、例えば蜜巻きコイル
よりなる外套管の先端に、一対の生検組織採取用カップ
が開閉自在に取着された先端作動部を設け、その先端作
動部の後端部に一端が連結された操作ワイヤを外套管内
に挿通し、その操作ワイヤを遠隔的に進退させることに
よってカップを開閉して、生検組織を採取していた。[Prior Art] Conventionally, this type of biopsy forceps for an endoscope has a distal end working unit in which a pair of biopsy tissue sampling cups are openably and closably attached to the distal end of an outer tube made of, for example, a bead winding coil. A biopsy tissue was collected by providing an operating wire, one end of which was connected to the rear end portion of the distal end working portion, through the mantle tube, and opening and closing the cup by remotely advancing and retracting the operating wire. .
［発明が解決しようとする問題点］ 胆道癌などの確定診断を行うためには、生検組織の採取
が最も正確かつ確実な方法であると考えられている。[Problems to be Solved by the Invention] In order to make a definitive diagnosis of biliary tract cancer or the like, collection of biopsy tissue is considered to be the most accurate and reliable method.
しかし、第５図に示されるように、内視鏡ａが挿入され
る十二指腸ｊへ、胆管ｃは上方から下方に向って屈曲し
ながら開口しているので、生検鉗子ｂを胆管ｃ内に挿入
するためには、内視鏡ａの正面から鋭角に、後方（図面
の上方）に向かって生検鉗子ｂの先端を送り出す必要が
ある。However, as shown in FIG. 5, since the bile duct c opens from the upper side to the lower side of the duodenum j into which the endoscope a is inserted, the biopsy forceps b is inserted into the bile duct c. In order to insert the biopsy forceps b, it is necessary to send the tip of the biopsy forceps b backward (upward in the drawing) from the front of the endoscope a at an acute angle.
一方、生検鉗子ｂが挿通される内視鏡ａには、前方視
型、斜視型、側方視型などがあり、狭い十二指腸ｊ内で
生検鉗子ｂをなるべく後方に向けて送り出すには側方視
型が有利である。On the other hand, the endoscope a into which the biopsy forceps b is inserted is of a forward-viewing type, a perspective type, a side-viewing type, or the like, and in order to send out the biopsy forceps b as backward as possible within the narrow duodenum j. The side-view type is advantageous.
しかし、一般に、内視鏡ａの鉗子出口ｄで生検鉗子ｂを
90度以上屈曲すると、摩擦抵抗の増大などによって生検
鉗子ｂを進退することができなくなってしまう。そのた
め、内視鏡ａの鉗子出口ｄ付近で生検鉗子ｂを90度以上
屈曲させるのは実質的に不可能である。However, in general, the biopsy forceps b is inserted at the forceps outlet d of the endoscope a.
When bent over 90 degrees, the biopsy forceps b cannot be moved back and forth due to an increase in frictional resistance. Therefore, it is practically impossible to bend the biopsy forceps b by 90 degrees or more near the forceps outlet d of the endoscope a.
そして、上述の従来の内視鏡用生検鉗子は、外套管ｅが
蜜巻きコイルなどのように、外力により屈曲された後そ
の外力が取り除かれたときには、常に直線に戻る完全な
直線復元性を有する可撓管で形成されていたので、第５
図に示されるように、内視鏡ａから送り出された生検鉗
子ｂの外套管ｅが常に真直になってしまい、胆管ｃ内に
挿入することは不可能であった。The conventional endoscopic biopsy forceps described above have a perfect straight line restoring property such that when the outer tube e is bent by an external force and then the external force is removed, like a bead winding coil, the straight line always returns to a straight line. Since it was formed of a flexible tube having
As shown in the figure, the mantle tube e of the biopsy forceps b sent out from the endoscope a was always straight, and it was impossible to insert it into the bile duct c.
尚、生検鉗子などを、内視鏡の観察視野内で正確に操作
するためには、内視鏡と目的部位（胆管開口部）との間
に一定の適正な距離をとる必要があるので、第５図の２
点鎖線で示される図のように、内視鏡を胆管開口部に極
近接させて胆管に対する挿入角度をある程度確保して
も、現実の挿入操作をすることはできない。In order to operate the biopsy forceps and the like accurately within the observation field of view of the endoscope, it is necessary to maintain a certain and appropriate distance between the endoscope and the target site (bile duct opening). , 2 in FIG.
Even if the endoscope is brought into close proximity to the bile duct opening to secure the insertion angle to the bile duct to some extent as shown by the dotted line, the actual insertion operation cannot be performed.
また、胆管内では内視鏡によって観察することができな
いので、胆管内の生検組織を採取すべき部位はＸ線によ
り確認しなければならないが、従来の内視鏡用生検鉗子
は外套管がコイルで形成されているので、造影剤を先端
へ送ろうとしても途中で漏れてしまう。In addition, since it cannot be observed with an endoscope in the bile duct, the site where the biopsy tissue is to be collected in the bile duct must be confirmed by X-rays. Since it is formed of a coil, even if an attempt is made to send the contrast agent to the tip, it will leak on the way.
また、仮にコイル内を経由して造影剤を先端まで送って
も、外套管と先端作動部との連結部分に造影剤を通過さ
せるだけの隙間がないので、生検鉗子を介して造影を行
うことはできない。Further, even if the contrast agent is sent to the tip via the coil, there is no gap for passing the contrast agent at the connecting portion between the outer tube and the tip actuating portion, so that the contrast is performed via the biopsy forceps. It is not possible.
そのため従来は、胆管内にまず造影用チューブを挿入し
て造影剤を注入した後、次に生検鉗子を挿入するという
煩雑な操作を必要とした。Therefore, conventionally, a complicated operation of first inserting a contrast tube into the bile duct and injecting a contrast agent, and then inserting a biopsy forceps has been required.
本発明は、従来のそのような欠点を解消し、十二指腸内
に挿入された内視鏡の鉗子チャンネルを通じて、容易に
胆管内に挿入することができ、Ｘ線造影をしながら胆管
内の生検組織を容易に採取することができる内視鏡用生
検鉗子を提供することを目的とする。The present invention solves the conventional drawbacks described above, and can be easily inserted into the bile duct through a forceps channel of an endoscope inserted into the duodenum, and a biopsy in the bile duct can be performed while performing X-ray imaging. An object is to provide an endoscopic biopsy forceps capable of easily collecting a tissue.
［問題点を解決するための手段］ 上記の問題点を解決するため、本発明の内視鏡用生検鉗
子は、外套管の先端に、一対の生検組織採取用カップが
開閉自在に取着された先端作動部を取り付けて、その先
端作動部に一端が連結された操作ワイヤを上記外套管内
に進退自在に挿通し、その操作ワイヤを遠隔的に進退さ
せることによって上記カップを開閉するようにした内視
鏡用生検鉗子において、上記外套管を可撓性チューブで
形成して、その先端内周部に上記先端作動部後部の不動
部分を螺合させると共に、上記外套管と操作ワイヤとの
間を液体流路に形成して、その液体流路内の液体を上記
外套管の前方外部に送り出すための液体通過路を、上記
先端作動部後部のの螺合部の内側を一部切り欠いて形成
したことを特徴とする。[Means for Solving the Problems] In order to solve the above problems, in the biopsy forceps for an endoscope of the present invention, a pair of biopsy tissue collecting cups are openably and closably attached to the distal end of the outer tube. The attached distal end working portion is attached, and the operation wire whose one end is connected to the distal end operating portion is inserted into the outer tube so as to be able to advance and retreat, and the operation wire is moved forward and backward to open and close the cup. In the endoscopic biopsy forceps described above, the outer tube is formed of a flexible tube, and the inner peripheral portion of the distal end of the outer tube is screwed into the immovable portion of the rear portion of the distal end working portion, and the outer tube and the operating wire are connected. And a liquid passage for sending the liquid in the liquid flow path to the outside of the front of the outer tube, and a part of the inner side of the threaded portion at the rear of the tip working portion. It is characterized by being formed by cutting out.
［実施例］ 本発明の実施例について、第１図ないし第３図にもとづ
いて説明する。[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 to 3.
１は、外力によって屈曲された後その外力がとり除かれ
たときに、完全な直線復元性を有さない可撓管よりなる
外套管を示し、例えば四フッ化エチレン樹脂、ポリウレ
タン樹脂又はウレタン樹脂などの合成樹脂製チューブに
より形成されている。Reference numeral 1 denotes a mantle tube made of a flexible tube which does not have a perfect linear restoring property when the outer force is removed after being bent by the outer force, for example, tetrafluoroethylene resin, polyurethane resin or urethane resin. It is formed of a synthetic resin tube such as.
２は、一対の生検組織採取用カップ４が開閉自在に取着
された先端作動部８の不動部である先端本体であり、そ
の後半部分には外周に雄ねじが形成されていて、外套管
１の先端に螺入され、その螺合部でさらに接着剤によっ
て外套管１に接合されている。Reference numeral 2 denotes a distal end body which is an immovable portion of a distal end working portion 8 to which a pair of biopsy tissue sampling cups 4 are openably and closably attached, and a male screw is formed on the outer periphery of the latter half portion thereof, which is a mantle tube. It is screwed into the tip of the outer tube 1 and is joined to the outer tube 1 by an adhesive at the threaded portion.
先端本体２の前半部には、前方に向かって平行に突き出
た一対の碗部2aが形成され、その碗部2aの先端付近に、
上下一対のお椀状の生検組織採取用カップ４が、回動軸
３を中心にして開閉自在に軸支されている。In the front half of the tip body 2, a pair of bowl portions 2a protruding in parallel toward the front is formed, and near the tip of the bowl portion 2a,
A pair of upper and lower bowl-shaped biopsy tissue collecting cups 4 are rotatably supported about a rotating shaft 3 so as to be openable and closable.
そして、そのカップ４の縁部4aは刃状に鋭く成形され、
縁部4aで生体組織を切り取り、カップ内腔4bに切り取ら
れた組織片を収容するようになっている。The edge 4a of the cup 4 is sharply formed into a blade shape,
The living tissue is cut off at the edge 4a, and the cut-out tissue piece is accommodated in the cup lumen 4b.
５は、軸5a及びリンク板5bにより構成されて、カップ４
の後部に連結された公知のリンク機構である。リンク機
構５の後端部には、ワイヤ継ぎ６を介して操作ワイヤ７
の一端が連結取着されている。5 comprises a shaft 5a and a link plate 5b, and a cup 4
It is a publicly known link mechanism connected to the rear part. The operation wire 7 is connected to the rear end of the link mechanism 5 via a wire joint 6.
One end of is connected and attached.
そして、操作ワイヤ７は外套管１内に進退自在に挿通さ
れていて、図示されていない公知の操作部に連結され、
操作ワイヤ７を遠隔的に進退操作することにより、リン
ク機構５が動作して、カップ４が開閉するようになって
いる。The operation wire 7 is inserted into the outer tube 1 so as to be able to move back and forth, and is connected to a known operation unit (not shown),
By operating the operation wire 7 to move back and forth remotely, the link mechanism 5 operates and the cup 4 opens and closes.
このように、先端本体２、回動軸３、カップ４、リンク
機構５及びワイヤ継ぎ６により先端作動部８が形成され
ている。In this way, the tip body 2, the rotating shaft 3, the cup 4, the link mechanism 5, and the wire joint 6 form the tip actuating portion 8.
また、外套管１に予め曲りぐせを形成しておけば、いわ
ゆる前方視型や斜視型の内視鏡の鉗子チャンネルに挿通
して、内視鏡用生検鉗子を胆管内に挿入することも可能
となる。In addition, if the mantle tube 1 is preliminarily bent, it is possible to insert the endoscopic biopsy forceps into the bile duct by inserting the forceps channel of a so-called forward-looking or perspective-type endoscope. It will be possible.
外套管１と操作ワイヤ７との間には、液体を通過させる
のに充分な隙間が形成されていて、その隙間が流体流路
21になっている。また、その流体流路21と外套管１の前
方外部とを連通する上下一対の液体通過孔３が、第１図
と第３図に示されるように、先端本体２の外套管１に対
する螺合部の内側を一部切り欠いて形成されている。A sufficient gap is formed between the mantle tube 1 and the operation wire 7 for allowing the liquid to pass therethrough, and the gap is the fluid flow path.
It is 21. Further, as shown in FIGS. 1 and 3, a pair of upper and lower liquid passage holes 3 for communicating the fluid flow path 21 and the front outside of the outer tube 1 are screwed to the outer tube 1 of the tip body 2. Part of the inside of the part is cut away.
外套管１の基端側は、図示しない操作部に液密に連結さ
れ、その連結部付近に液体流路21に連通する公知の液体
注入口（例えば、いわゆるルアロック口金）が形成され
ている。The base end side of the outer tube 1 is liquid-tightly connected to an operation part (not shown), and a known liquid injection port (for example, a so-called luer lock base) communicating with the liquid flow path 21 is formed near the connection part.
次に上記実施例の動作について、第４図をも参照しつつ
説明する。Next, the operation of the above embodiment will be described with reference to FIG.
いわゆる側方視型の内視鏡10を十二指腸11内に挿入し
て、胆管12の開口部13に対向させ、内視鏡10の鉗子チャ
ンネル14を通じて、内視鏡用生検鉗子を胆管12の上記開
口部13に挿入する。A so-called side-viewing endoscope 10 is inserted into the duodenum 11 so as to face the opening 13 of the bile duct 12, and through the forceps channel 14 of the endoscope 10, an endoscopic biopsy forceps is attached to the bile duct 12. It is inserted into the opening 13.
このとき、外套管１は、鉗子チャンネル14の鉗子出口15
付近で、観察視野の方向にあわせて約90度屈曲されて内
視鏡10から胆管の開口部13に向かって送り出される。At this time, the mantle tube 1 is fixed to the forceps outlet 15 of the forceps channel 14.
In the vicinity, it is bent by about 90 degrees in accordance with the direction of the observation visual field and sent out from the endoscope 10 toward the opening 13 of the bile duct.
すると、外套管１は完全な直線復元性を有していないの
で、内視鏡10の先端から突出した後も、鉗子出口15付近
を通過する際に形成された曲りぐせが、ある程度外套管
１に残留し、後方に向かってちょうど胆管12に向う方向
に適度に屈曲した形状となり、胆管12の開口部13に押し
込むだけで、非常に高い確率で胆管12内に挿入すること
ができる。Then, since the mantle tube 1 does not have a perfect straight line restoring property, even after protruding from the distal end of the endoscope 10, the bending formed when passing near the forceps outlet 15 causes the mantle tube 1 to some extent. Remains in the bile duct 12, and has a shape that is appropriately bent in the direction toward the bile duct 12 toward the rear and can be inserted into the bile duct 12 with a very high probability simply by pushing it into the opening 13 of the bile duct 12.
なお、外套管１の先端部分に予め曲りぐせを形成してお
いて、側方視型内視鏡10の鉗子チャンネル14に挿通すれ
ば、鉗子出口15付近で形成される曲りぐせと予め形成さ
れた曲りぐせとが復合されて、立体的な曲りぐせを形成
することも可能となり、胆管12への挿入率をさらに向上
させることができる。If the tip of the mantle tube 1 is formed in advance and is inserted into the forceps channel 14 of the side-viewing endoscope 10, it is formed in advance near the forceps outlet 15. It is also possible to form a three-dimensional curving habit by combining the curving habit and the insertion rate into the bile duct 12 can be further improved.
また、胆管内は内視鏡によって観察することができない
ので、生検組織を採取すべき胆管内の部位はＸ線により
確認しなければならないが、この実施例によれば、Ｘ線
造影剤を液体流路21へ送り込んで、液体通過孔23から前
方に送出することができる。In addition, since the inside of the bile duct cannot be observed with an endoscope, the site inside the bile duct where the biopsy tissue should be collected must be confirmed by X-ray. According to this example, an X-ray contrast agent is used. It can be sent to the liquid flow path 21 and sent out forward from the liquid passage hole 23.
したがって、胆管内にまず造影用チューブを挿入して造
影剤を注入し、次に生検鉗子を挿入するという煩雑な操
作を必要とせず、生検鉗子を胆管に挿入して造影剤を注
入し、目標部位を把握した後、即座にその部位の生検組
織を採取することができる。また、その操作の最中に造
影剤が洩れて、目標部位の確認ができなくなったとき
は、即座に造影剤を注入して目標部位を改めて正確に把
握することができる。Therefore, the complicated procedure of first inserting the contrast tube into the bile duct to inject the contrast agent and then inserting the biopsy forceps into the bile duct, and inserting the biopsy forceps into the bile duct to inject the contrast agent is not necessary. After grasping the target site, the biopsy tissue of that site can be collected immediately. Further, when the contrast medium leaks during the operation and the target region cannot be confirmed, the contrast medium can be immediately injected to grasp the target region again accurately.
［発明の効果］ 本発明の内視鏡用生検鉗子によれば、外套管が可撓性チ
ューブによって形成されているので、内視鏡の正面から
後方に向かう、胆管挿入に都合のよい屈曲形状が容易に
得られ、したがって胆管内に高い確率で挿入することが
でき、胆管内の生検組織を採取することができる。[Effect of the Invention] According to the endoscopic biopsy forceps of the present invention, since the mantle tube is formed of a flexible tube, it is bent from the front of the endoscope toward the rear, which is convenient for inserting the bile duct. The shape is easily obtained and thus can be inserted into the bile duct with a high probability, and the biopsy tissue in the bile duct can be collected.
しかも、Ｘ線造影剤を液体流路から液体通過路を経由し
て前方に送出することができるので、目標部位において
容易に造影剤を注入して、Ｘ線で位置を確認しながらそ
の部位の生検組織を採取することができる。Moreover, since the X-ray contrast agent can be delivered forward from the liquid flow path via the liquid passage, the contrast agent can be easily injected at the target site and the position of the site can be confirmed by X-rays. Biopsy tissue can be collected.
第１図は、本発明の実施例の一部を切除して示す側面
図、 第２図は、その平面図、 第３図は、第１図のIII−III断面図、 第４図は、実施例の使用状態を示す略示図、 第５図は、従来例の使用状態を示す略示図である。 １…外套管、２…先端本体、４…カップ、７…操作ワイ
ヤ、８…先端作動部、21…液体流路、23…流体通過孔。FIG. 1 is a side view showing a part of an embodiment of the present invention by cutting away, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. FIG. 5 is a schematic view showing a usage state of the embodiment, and FIG. 5 is a schematic view showing a usage state of a conventional example. DESCRIPTION OF SYMBOLS 1 ... Mantle tube, 2 ... Tip body, 4 ... Cup, 7 ... Operation wire, 8 ... Tip operation part, 21 ... Liquid flow path, 23 ... Fluid passage hole.
Claims (1)
ップが開閉自在に取着された先端作動部を取り付けて、
その先端作動部に一端が連結された操作ワイヤを上記外
套管内に進退自在に挿通し、その操作ワイヤを遠隔的に
進退させることによって上記カップを開閉するようにし
た内視鏡用生検鉗子において、 上記外套管を可撓性チューブで形成して、その先端内周
部に上記先端作動部後部の不動部分を螺合させると共
に、上記外套管と操作ワイヤとの間を液体流路に形成し
て、その液体流路内の液体を上記外套管の前方の上記生
検組織採取カップの外側に送り出すための液体通過路
を、上記先端作動部後部の螺合部の内側を一部切り欠い
て形成したことを特徴とする内視鏡用生検鉗子。1. A tip actuating portion, to which a pair of biopsy tissue sampling cups are openably and closably attached, is attached to the tip of the mantle tube,
A biopsy forceps for an endoscope in which an operation wire, one end of which is connected to the distal end operation portion, is inserted into the outer tube so as to be able to move forward and backward, and the operation wire is moved forward and backward to open and close the cup. The outer tube is formed of a flexible tube, and an immovable portion of the rear end of the distal end working portion is screwed into an inner peripheral portion of the distal end of the outer tube, and a liquid flow path is formed between the outer tube and the operation wire. A liquid passage for sending the liquid in the liquid flow path to the outside of the biopsy tissue sampling cup in front of the mantle tube, by partially cutting out the inside of the screwing part at the rear of the distal end working part. A biopsy forceps for an endoscope, which is characterized by being formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61047000A JPH0698140B2 (en) | 1986-03-03 | 1986-03-03 | Endoscopic biopsy forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61047000A JPH0698140B2 (en) | 1986-03-03 | 1986-03-03 | Endoscopic biopsy forceps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62204736A JPS62204736A (en) | 1987-09-09 |
| JPH0698140B2 true JPH0698140B2 (en) | 1994-12-07 |
Family
ID=12762916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61047000A Expired - Fee Related JPH0698140B2 (en) | 1986-03-03 | 1986-03-03 | Endoscopic biopsy forceps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0698140B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101481732B1 (en) * | 2013-04-17 | 2015-01-12 | 전북대학교산학협력단 | needle for inspecting the tissue of body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022035058A (en) * | 2020-08-20 | 2022-03-04 | 株式会社Biomedical Solutions | Biopsy forceps |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714327A (en) * | 1980-06-30 | 1982-01-25 | Olympus Optical Co | Biopsy forceps |
| JPS5858002U (en) * | 1981-10-13 | 1983-04-19 | 株式会社メドス研究所 | Lifting device for endoscope conductor |
| JPS6031690Y2 (en) * | 1981-12-11 | 1985-09-21 | 株式会社 メドス研究所 | High frequency dissector for endoscope |
-
1986
- 1986-03-03 JP JP61047000A patent/JPH0698140B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101481732B1 (en) * | 2013-04-17 | 2015-01-12 | 전북대학교산학협력단 | needle for inspecting the tissue of body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62204736A (en) | 1987-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |