JP2007007323A - Sampling device for body tissue - Google Patents

Sampling device for body tissue Download PDF

Info

Publication number
JP2007007323A
JP2007007323A JP2005195169A JP2005195169A JP2007007323A JP 2007007323 A JP2007007323 A JP 2007007323A JP 2005195169 A JP2005195169 A JP 2005195169A JP 2005195169 A JP2005195169 A JP 2005195169A JP 2007007323 A JP2007007323 A JP 2007007323A
Authority
JP
Japan
Prior art keywords
biological tissue
cutting
collection device
cutting member
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.)
Granted
Application number
JP2005195169A
Other languages
Japanese (ja)
Other versions
JP4716808B2 (en
Inventor
Masatoshi Tonomura
正敏 外村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Medical Systems Corp
Original Assignee
Olympus Medical Systems Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Medical Systems Corp filed Critical Olympus Medical Systems Corp
Priority to JP2005195169A priority Critical patent/JP4716808B2/en
Publication of JP2007007323A publication Critical patent/JP2007007323A/en
Application granted granted Critical
Publication of JP4716808B2 publication Critical patent/JP4716808B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Surgical Instruments (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sampling device for body tissues which allows sure sampling of body tissues. <P>SOLUTION: The sampling device for body tissues has a picking member 5 which can be extended in a radial pattern and can pick the body tissues to be cut, a first operating member 11 which can operate the picking member 5 in two conditions that the member 5 is extended in the radial pattern and contracted so as to pick the body tissues to be cut, a slidable cutting member 4 in which a puncturing member 8 is provided at the tip end and an edge 9 for cutting the body tissues picked up by the picking member 5 in the basal end, and an operating wire 10 which slidably operates the cutting member 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、体内の生体組織を採取する生体組織採取装置に関する。   The present invention relates to a biological tissue collection device that collects biological tissue in the body.

生体検査等のため、体内臓器に深く刺し込んで深部の組織を採取するようにした生体組織採取装置として、特開２００１−７０３０７（特許文献１）に示されたものがある。この生体組織採取装置は、鞘部材内に挿入した外套パイプを有し、この外套パイプ内に穿刺部材を挿入配置するとともに、外套パイプの先端周縁を外刃とし、穿刺部材には上記外刃に向き合う内刃と、生体組織を取り込む収容凹部とを設けたものである。   Japanese Laid-Open Patent Publication No. 2001-70307 (Patent Document 1) discloses a biological tissue collecting device that is deeply inserted into a body organ and collects a deep tissue for a biological examination or the like. This biological tissue collection device has a mantle pipe inserted into a sheath member, and a puncture member is inserted and arranged in the mantle pipe, and the distal edge of the mantle pipe is used as an outer blade, and the puncture member is connected to the outer blade. The inner blades facing each other and the accommodating recess for taking in the biological tissue are provided.

この生体組織採取装置を使用する場合にあたっては、先端部分を体内臓器に穿刺し、その穿刺した状態で、穿刺部材を外套パイプから突き出し、穿刺部材を引き戻すことにより、外刃と内刃によって生体組織を切り取って収容凹部に取り込み採取するようになっている。
特開２００１−７０３０７ When using this biological tissue collection device, puncture the tip portion of the internal organ, puncture the puncture member from the mantle pipe, and pull the puncture member back with the puncture member. Is cut out and taken into the housing recess.
JP 2001-70307 A

上記従来の生体組織採取装置は、生体組織に穿刺した状態で、外套パイプから穿刺部材を突き出し、穿刺部材を引き戻すことにより収容凹部内に入り込んだ生体組織を、外刃と内刃によって切断して採取する。つまり、収容凹部内に入り込ませた生体組織を外刃と内刃によって切断するものである。このため、生体組織が収容凹部内に十分に入り込まないと、外刃と内刃によって切断する際に生体組織が収容凹部から逃げ出し易い。また、臓器に穿刺した際、生体組織が収容凹部内に十分に入り込み難いので、生体組織の採取量が不十分になり易い。一度の操作では採取できなかったりすることも起こり得る。   The conventional biological tissue collecting device cuts the biological tissue that has entered the receiving recess by protruding the puncture member from the outer pipe and pulling back the puncture member with the outer blade and the inner blade while the biological tissue is punctured. Collect. That is, the living tissue that has entered the housing recess is cut by the outer blade and the inner blade. For this reason, if the living tissue does not sufficiently enter the housing recess, the living tissue easily escapes from the housing recess when cutting with the outer blade and the inner blade. In addition, when an organ is punctured, the living tissue does not easily enter the housing recess, and the amount of collected living tissue tends to be insufficient. It may happen that it cannot be collected in one operation.

本発明は上記課題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、生体組織を確実に採取できるようにした生体組織採取装置を提供することにある。   The present invention has been made paying attention to the above-mentioned problems, and an object of the present invention is to provide a biological tissue collection device that can reliably collect biological tissue.

本発明は、体内に挿入される挿入部と、上記挿入部の先端に配置され、放射状に拡張可能であり、かつ、切断する生体組織を把持可能な把持部材と、上記把持部材を放射状に拡張する状態と、切断する生体組織を把持する収縮状態に操作可能な第１の操作手段と、上記挿入部の先端に配置され、先端側部分に穿刺部が設けられ、基端側部分に上記把持部材で把持した生体組織を切断するための刃が形成される進退自在な切断部材と、上記切断部材を進退操作する第２の操作手段と、を有することを特徴とする生体組織採取装置である。
そして、把持部材を放射状に拡張することで、穿刺部の周りの生体組織を把持することができ、把持部材が生体組織を把持した後、切断部材を基端側に移動することで穿刺部の刃により生体組織を切断して採取する。 The present invention includes an insertion portion to be inserted into a body, a gripping member that is disposed at a distal end of the insertion portion, can be radially expanded, and can grip a living tissue to be cut, and the gripping member is radially expanded. A first operating means operable in a contracted state for gripping a living tissue to be cut, and a puncture portion provided at a distal end side portion and a grasping portion at a proximal end portion A biological tissue collecting apparatus comprising: a cutting member that is movable forward and backward in which a blade for cutting a biological tissue grasped by the member is formed; and a second operation unit that advances and retracts the cutting member. .
Then, by extending the gripping member radially, the living tissue around the puncture unit can be gripped, and after the gripping member grips the biological tissue, the cutting member is moved to the proximal side to The biological tissue is cut and collected with a blade.

本発明によれば、体内の生体組織を簡便かつ確実に採取することができる。   According to the present invention, a living body tissue in a body can be collected easily and reliably.

＜第１の実施形態＞
図１〜図８に基づいて本発明の第１の実施形態に係る生体組織採取装置について説明する。 <First Embodiment>
A biological tissue collection device according to a first embodiment of the present invention will be described with reference to FIGS.

図１に示すように、本実施形態に係る生体組織採取装置１は、可撓性を有する挿入部としての細長いシース２と、このシース２の先端に配置固定された環状の先端チップ３と、この先端チップ３に向き合うようにその遠位側に位置して配置され上記シース２の長手軸方向に進退自在な切断部材４と、この切断部材４内に突没するように進退自在に配置されかつ上記切断部材４とは独立して進退するとともにフリーな状態では自然に拡張する把持部５と、上記シース２の基端（近位端）に設けられ上記切断部材４と把持部５を操作するための操作手段を備えた操作部６とを備える。   As shown in FIG. 1, the biological tissue collection device 1 according to the present embodiment includes an elongated sheath 2 as a flexible insertion portion, an annular tip 3 arranged and fixed at the distal end of the sheath 2, A cutting member 4 that is disposed on the distal side of the tip tip 3 so as to face the tip tip 3 and that can move forward and backward in the longitudinal axis direction of the sheath 2, and a retractable member that protrudes and retracts into the cutting member 4. In addition, the gripping portion 5 that advances and retreats independently of the cutting member 4 and naturally expands in a free state, and is operated at the proximal end (proximal end) of the sheath 2 to operate the cutting member 4 and the gripping portion 5. And an operation unit 6 including an operation means for performing the operation.

上記切断部材４は、図２に示すように、その先端部分が閉塞してなる円筒状部材によって形成されるとともに、その内部空間によって採取した生体組織を収納する収納部７を形成している。また、切断部材４の外径は上記シース２の外径と略同じ外径で形成されている。   As shown in FIG. 2, the cutting member 4 is formed by a cylindrical member whose tip is closed, and forms a storage portion 7 for storing a biological tissue collected by the internal space. Further, the outer diameter of the cutting member 4 is formed to be substantially the same as the outer diameter of the sheath 2.

切断部材４の先端外周部分は先細りの円錐状に形成してなり、この円錐状の部分によって先端が尖端部８ａとなった穿刺部８を形成する。また、切断部材４の基端（近位端）の全周縁には採取する生体組織を切断するための返し刃形状の刃９が形成されている。さらに、切断部材４の閉塞先端部分にはその切断部材４の内部空間を貫通して先方へ延びた操作ワイヤ１０の先端が接続されている。この操作ワイヤ１０によって切断部材４を上記シース２の軸方向へ進退操作する操作手段を構成している。   The outer peripheral portion of the distal end of the cutting member 4 is formed in a tapered conical shape, and the puncture portion 8 whose tip is a pointed portion 8a is formed by this conical portion. Further, a cutting edge-shaped blade 9 for cutting a biological tissue to be collected is formed on the entire periphery of the proximal end (proximal end) of the cutting member 4. Further, the distal end of the operation wire 10 extending through the internal space of the cutting member 4 is connected to the closed distal end portion of the cutting member 4. This operating wire 10 constitutes operating means for operating the cutting member 4 to advance and retract in the axial direction of the sheath 2.

図２に示すように、上記シース２内には、上記把持部５を先端に接続した制御用操作部材１１が挿通されている。この制御用操作部材１１は、例えば金属製密着巻きコイル等によってシース状に形成した中空可撓性部材からなる。制御用操作部材１１の先端には上記把持部５を保持するための筒状の固定部材１２が固定的に取着されている。制御用操作部材１１によって上記把持部５を上記シース２の軸方向へ進退操作する操作手段を構成している。この制御用操作部材１１内には上記操作ワイヤ１０が挿通されている。制御用操作部材１１と上記操作ワイヤ１０とは互いに独立しての操作が可能である。   As shown in FIG. 2, a control operation member 11 having the grip portion 5 connected to the tip is inserted into the sheath 2. The control operation member 11 is formed of a hollow flexible member formed in a sheath shape by, for example, a metal close-wound coil. A cylindrical fixing member 12 for holding the grip portion 5 is fixedly attached to the tip of the control operation member 11. The control member 11 constitutes an operating means for operating the grip portion 5 to advance and retract in the axial direction of the sheath 2. The operation wire 10 is inserted into the control operation member 11. The control operation member 11 and the operation wire 10 can be operated independently of each other.

図２に示すように、上記把持部５は複数のアーム（部材）１３を有する。各アーム１３は例えば弾性のある金属製ワイヤにより作られていて、各アーム１３の基部を固定部材１２に固定することにより、各アーム１３の先端側部分が斜め後方の外方に放射状に広がって延びる拡張性を備えている。そして、各アーム１３は図２に示すフリーな状態ではそれぞれ斜め後方（近位方向）の外方へ延びるとともに、上記シース２と切断部材４の外周の位置以上に外へ広がっている。   As shown in FIG. 2, the grip portion 5 has a plurality of arms (members) 13. Each arm 13 is made of, for example, an elastic metal wire. By fixing the base portion of each arm 13 to the fixing member 12, the tip side portion of each arm 13 is radially outwardly spread outward. Has expandability. In the free state shown in FIG. 2, each arm 13 extends outward obliquely rearward (proximal direction) and extends outward beyond the outer peripheral positions of the sheath 2 and the cutting member 4.

各アーム１３の先端には、内側へ向く爪１３ａが設けられていて、各爪１３ａは生体組織を把持したとき、生体組織に引っ掛かり滑らない。したがって、アーム１３により生体組織を確実に把持できるようになる。   A claw 13a facing inward is provided at the tip of each arm 13, and each claw 13a is caught by a living tissue and does not slip. Therefore, the biological tissue can be reliably grasped by the arm 13.

次に、図３を参照して、上記切断部材４及び上記把持部５を操作する操作部６について説明する。操作部６は、上記シース２に接続されるグリップ１５と、上記制御用操作部材１１に接続されたスライダ１６と、上記操作ワイヤ１０に接続されたつまみ１７を備える。   Next, with reference to FIG. 3, the operation part 6 which operates the said cutting member 4 and the said holding part 5 is demonstrated. The operation unit 6 includes a grip 15 connected to the sheath 2, a slider 16 connected to the control operation member 11, and a knob 17 connected to the operation wire 10.

上記スライダ１６は使用者が操作するための操作ノブ１８と、この操作ノブ１８を制御用操作部材１１に接続する固定部材１９とを備える。   The slider 16 includes an operation knob 18 for a user to operate, and a fixing member 19 that connects the operation knob 18 to the control operation member 11.

上記グリップ１５は軸方向に沿ったルーメン２０を有しており、このルーメン２０内に上記固定部材１９が移動自在に挿通されている。また、グリップ１５には所定位置に操作ノブ１８を固定するための複数の溝２１，２２，２３が前後方向にずれて設けられている。そして、複数の溝２１，２２，２３のいずれかを選択して操作ノブ１８を係止することによってシース２に対する位置を選んで把持部５を固定できる。   The grip 15 has a lumen 20 along the axial direction, and the fixing member 19 is movably inserted into the lumen 20. In addition, the grip 15 is provided with a plurality of grooves 21, 22, and 23 for fixing the operation knob 18 at predetermined positions so as to be shifted in the front-rear direction. Then, by selecting one of the plurality of grooves 21, 22, and 23 and locking the operation knob 18, the position relative to the sheath 2 can be selected and the grip portion 5 can be fixed.

また、図３に示すように、上記固定部材１９から突き出た上記操作ワイヤ１０の途中には固定部材２５が設けられている。この固定部材２５には太径の凸部２６が設けられている。また、操作部６におけるグリップ１５のルーメン２０には固定部材２５の凸部２６が嵌合して係止するための凹部２７が形成されている。そして、凹部２７に固定部材２５の凸部２６を係止することにより、上記操作ワイヤ１０を進退方向の所定位置に固定できるようになっている。   As shown in FIG. 3, a fixing member 25 is provided in the middle of the operation wire 10 protruding from the fixing member 19. The fixing member 25 is provided with a large-diameter convex portion 26. Further, the lumen 20 of the grip 15 in the operation unit 6 is formed with a recess 27 for fitting and locking the protrusion 26 of the fixing member 25. The operation wire 10 can be fixed at a predetermined position in the advancing / retreating direction by engaging the convex portion 26 of the fixing member 25 with the concave portion 27.

以下、生体組織採取装置１を使用する際の作用について説明する。まず、図４に示すように、把持部５を切断部材４内に収納した上で、図５に示すように、その切断部材４を基端側へ引き込み、切断部材４が先端チップ３に当たるまで後退させる。このとき、図３に示すように操作部６のスライダ１６とつまみ１７は後退した位置状態にある。また、シース２と切断部材４の外周は略連なった状態になる。   Hereinafter, the operation when using the biological tissue collection device 1 will be described. First, as shown in FIG. 4, the gripping part 5 is housed in the cutting member 4, and then the cutting member 4 is pulled to the proximal end side as shown in FIG. 5 until the cutting member 4 hits the distal tip 3. Retreat. At this time, as shown in FIG. 3, the slider 16 and the knob 17 of the operation unit 6 are in a retracted position state. Moreover, the outer periphery of the sheath 2 and the cutting member 4 will be in a substantially continuous state.

次に、図５に示す状態で図示しない内視鏡のチャンネルを通じて体腔内に導入する。尚、腹腔鏡下手術のような場合には内視鏡のチャンネルを直接に利用せず、他の手術器具を通じて導入することも可能である。   Next, it introduce | transduces in a body cavity through the channel of the endoscope which is not shown in the state shown in FIG. In the case of laparoscopic surgery, the endoscope channel can be introduced through other surgical instruments without directly using the endoscope channel.

そして、内視鏡のチャンネル先端より穿刺部８を突き出し、穿刺部８を目的部位へ穿刺する。この穿刺状態のまま、図６に示すように、スライダ１６を先端側へ押し込み、最先端の溝２１にスライダ１６を嵌め込み係止して切断部材４を固定する。すると、上記操作ワイヤ１０の固定部材２５がグリップ１５の凹部２７に嵌め込まれ、上記操作ワイヤ１０はグリップ１５に対して自動的に固定される。このとき、生体組織採取装置１の先端部は図４に示すように切断部材４が把持部５を引き込んだ状態で、シース２の先端チップ３から前方へ突き進んだ状態になる。   And the puncture part 8 is protruded from the channel front-end | tip of an endoscope, and the puncture part 8 is punctured to the target site. In this puncture state, as shown in FIG. 6, the slider 16 is pushed toward the distal end, and the slider 16 is fitted and locked in the most advanced groove 21 to fix the cutting member 4. Then, the fixing member 25 of the operation wire 10 is fitted into the recess 27 of the grip 15, and the operation wire 10 is automatically fixed to the grip 15. At this time, as shown in FIG. 4, the distal end portion of the biological tissue collection device 1 is in a state of being pushed forward from the distal end tip 3 of the sheath 2 with the cutting member 4 retracting the grip portion 5.

次に、図７に示すように、つまみ１７を操作することなく、操作ノブ１８を操作してスライダ１６を基端側に引き戻し、操作ノブ１８を溝２２に係合し、制御用操作部材１１を固定する。すると、図２に示すように、把持部５のアーム１３は放射状に拡張する状態に展開する。このため、各アーム１３は生体組織内にくい込んで突き刺さり、生体組織を把持する。   Next, as shown in FIG. 7, without operating the knob 17, the operation knob 18 is operated to pull the slider 16 back to the proximal end side, the operation knob 18 is engaged with the groove 22, and the control operation member 11. To fix. Then, as shown in FIG. 2, the arm 13 of the gripper 5 is expanded in a radially expanding state. For this reason, each arm 13 penetrates into the living tissue and pierces and holds the living tissue.

次に、スライダ１６をグリップ１５に固定したまま、つまみ１７を基端側に引き、穿刺部８のみを手元側に少し引き込む。すると、アーム１３により把持している生体組織が切断部材４の刃９で切断され、生体組織を収納部７に収納した状態で切り取り採取できる。この際、各アーム１３は切断部材４の基端（近位端）の周縁に当たることよって収縮するが生体組織を把持し続けるため、生体組織を逃さない。特に、返し形状の爪１３ａがあると、一層、採取しようとする生体組織を逃さない。このように、把持部５のアーム１３により生体組織を掴んで生体組織を切断するので生体組織を確実に採取することができる。   Next, with the slider 16 fixed to the grip 15, the knob 17 is pulled toward the proximal end, and only the puncture portion 8 is slightly pulled toward the proximal side. Then, the living tissue grasped by the arm 13 is cut by the blade 9 of the cutting member 4, and can be cut out and collected in a state where the living tissue is stored in the storage unit 7. At this time, each arm 13 contracts by hitting the peripheral edge of the proximal end (proximal end) of the cutting member 4, but keeps grasping the living tissue, so that the living tissue is not missed. In particular, when there is a nail 13a having a reversed shape, the living tissue to be collected is not missed. In this manner, the living tissue is grasped by the arm 13 of the grasping unit 5 and cut off, so that the living tissue can be reliably collected.

この後、グリップ１５からスライダ１６を解除し、スライダ１６を後退させることにより、収納部７に生体組織を格納した図５の状態として体外に引き抜く。このため、採取した生体組織を確実に回収できる。   Thereafter, the slider 16 is released from the grip 15, and the slider 16 is retracted, whereby the living tissue is stored in the storage portion 7 and pulled out of the body as shown in FIG. For this reason, the collected biological tissue can be reliably recovered.

＜第２の実施形態＞
図９に基づいて本発明の第２の実施形態に係る内視鏡用生体組織採取装置について説明する。本実施形態では、上述した第１の実施形態における把持部５のアーム１３の数を２本のものから３本乃至４本に増やしたものである。これによる作用は上述した第１の実施形態の場合と同様である。 <Second Embodiment>
Based on FIG. 9, a biological tissue collection apparatus for an endoscope according to a second embodiment of the present invention will be described. In the present embodiment, the number of arms 13 of the grip portion 5 in the first embodiment described above is increased from two to three to four. The effect | action by this is the same as that of the case of 1st Embodiment mentioned above.

本実施形態ではアーム１３の数を多くすることで、生体組織を把持する力が増すとともに把持安定性が向上し、生体組織を確実に採取することができる。   In the present embodiment, by increasing the number of arms 13, the force for grasping the living tissue is increased, the grasping stability is improved, and the living tissue can be reliably collected.

＜第３の実施形態＞
図１０に基づいて本発明の第３の実施形態に係る内視鏡用生体組織採取装置について説明する。本実施形態では上述した第１の実施形態における把持部５の固定部材１２の本体部分と複数のアーム１３とが一体に形成されたものである。この本実施形態での作用及び効果は上述した第１の実施形態の場合と同様である。また、把持部５の固定部材１２にアーム１３を一体に構成することで、製作が容易で組立性の向上を図ることができ、一層、安価なものになる。 <Third Embodiment>
Based on FIG. 10, a biological tissue collecting apparatus for an endoscope according to a third embodiment of the present invention will be described. In this embodiment, the main body portion of the fixing member 12 of the grip portion 5 and the plurality of arms 13 in the first embodiment described above are integrally formed. The operations and effects of this embodiment are the same as those of the first embodiment described above. In addition, by forming the arm 13 integrally with the fixing member 12 of the grip portion 5, the manufacture is easy and the assemblability can be improved, and the cost is further reduced.

なお、本発明は前述した実施形態のものに限定されるものではなく、他の形態にも適用可能である。   In addition, this invention is not limited to the thing of embodiment mentioned above, It can apply also to another form.

本発明の第１の実施形態に係る内視鏡用生体組織採取装置を概略的に示す斜視図。1 is a perspective view schematically showing an endoscopic tissue collecting apparatus according to a first embodiment of the present invention. FIG. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の先端部付近の縦断面図。The longitudinal cross-sectional view of the tip part vicinity of the biological tissue collection device for endoscopes which concerns on the 1st Embodiment of this invention. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の把持部付近の縦断面図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view in the vicinity of a grip portion of an endoscope biological tissue collecting apparatus according to a first embodiment of the present invention. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の先端部付近における動作の説明図。Explanatory drawing of operation | movement in the vicinity of the front-end | tip part of the biological tissue collection device for endoscopes which concerns on the 1st Embodiment of this invention. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の先端部付近における動作の説明図。Explanatory drawing of operation | movement in the vicinity of the front-end | tip part of the biological tissue collection device for endoscopes which concerns on the 1st Embodiment of this invention. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の把持部付近における動作の説明図。Explanatory drawing of operation | movement in the vicinity of the holding part of the biological tissue collection device for endoscopes which concerns on the 1st Embodiment of this invention. 本発明の第１の実施形態に係る内視鏡用生体組織採取装置の把持部付近における動作の説明図。Explanatory drawing of operation | movement in the vicinity of the holding part of the biological tissue collection device for endoscopes which concerns on the 1st Embodiment of this invention. 本発明の第２の実施形態に係る内視鏡用生体組織採取装置の切断部材を概略的に示す斜視図。The perspective view which shows roughly the cutting member of the biological tissue collection device for endoscopes which concerns on the 2nd Embodiment of this invention. 本発明の第３の実施形態に係る内視鏡用生体組織採取装置の切断部材を概略的に示す斜視図。The perspective view which shows roughly the cutting member of the biological tissue collection device for endoscopes which concerns on the 3rd Embodiment of this invention.

符号の説明Explanation of symbols

１…生体組織採取装置
２…シース
４…切断部材
５…把持部
６…操作部
７…収納部
８ａ…尖端部
８…穿刺部
９…刃
１０…操作ワイヤ
１１…制御用操作部材
１３…アーム
１３ａ…爪
１５…グリップ
１６…スライダ
１８…操作ノブ
２５…固定部材 DESCRIPTION OF SYMBOLS 1 ... Living tissue collection apparatus 2 ... Sheath 4 ... Cutting member 5 ... Grasp part 6 ... Operation part 7 ... Storage part 8a ... Point part 8 ... Puncture part 9 ... Blade 10 ... Operation wire 11 ... Operation member 13 for control 13 ... Arm 13a ... Nail 15 ... Grip 16 ... Slider 18 ... Control knob 25 ... Fixing member

Claims (3)

体内に挿入される挿入部と、
上記挿入部の先端に配置され、放射状に拡張可能であり、かつ、切断する生体組織を把持可能な把持部材と、
上記把持部材を放射状に拡張する状態と、切断する生体組織を把持する収縮状態に操作可能な第１の操作手段と、
上記挿入部の先端に配置され、先端側部分に穿刺部が設けられ、基端側部分に上記把持部材で把持した生体組織を切断するための刃が形成される進退自在な切断部材と、
上記切断部材を進退操作する第２の操作手段と、
を有することを特徴とする生体組織採取装置。 An insertion part to be inserted into the body,
A gripping member that is disposed at the distal end of the insertion portion, is radially expandable, and can grip a living tissue to be cut;
A first operating means operable to radially expand the gripping member and a contracted state gripping a biological tissue to be cut;
A detachable cutting member that is disposed at the distal end of the insertion portion, a puncture portion is provided at the distal end side portion, and a blade for cutting the living tissue grasped by the grasping member is formed at the proximal end side portion;
A second operation means for advancing and retracting the cutting member;
A biological tissue collection device characterized by comprising: 上記把持部材は、拡張収縮可能な弾性を有する複数のアーム部材と、上記アーム部材を上記第１の操作手段に接続するための固定部材とを含み、
上記切断部材は、上記アーム部材により把持した生体組織を取り込む収納部を有することを特徴とする請求項１に記載の生体組織採取装置。 The gripping member includes a plurality of arm members having elasticity capable of expanding and contracting, and a fixing member for connecting the arm members to the first operating means,
2. The biological tissue collection device according to claim 1, wherein the cutting member has a storage portion that takes in the biological tissue grasped by the arm member. 上記アーム部材の先端に生体組織に引っ掛ける爪を有することを特徴とする請求項１または請求項２に記載の生体組織採取装置。 The biological tissue collection device according to claim 1, further comprising a claw that hooks onto the biological tissue at a distal end of the arm member.
JP2005195169A 2005-07-04 2005-07-04 Biological tissue collection device Active JP4716808B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005195169A JP4716808B2 (en) 2005-07-04 2005-07-04 Biological tissue collection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005195169A JP4716808B2 (en) 2005-07-04 2005-07-04 Biological tissue collection device

Publications (2)

Publication Number Publication Date
JP2007007323A true JP2007007323A (en) 2007-01-18
JP4716808B2 JP4716808B2 (en) 2011-07-06

Family

ID=37746538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005195169A Active JP4716808B2 (en) 2005-07-04 2005-07-04 Biological tissue collection device

Country Status (1)

Country Link
JP (1) JP4716808B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08299346A (en) * 1995-05-12 1996-11-19 Yoshihiko Shimizu Organism material extraction device
JPH1133031A (en) * 1997-07-16 1999-02-09 Asahi Optical Co Ltd Treatment apparatus for tip expansible type endoscope
JPH11226024A (en) * 1998-02-17 1999-08-24 Olympus Optical Co Ltd Treating implement for endoscope
JP2001070307A (en) * 1999-09-01 2001-03-21 Fuji Photo Optical Co Ltd Tissue collecting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08299346A (en) * 1995-05-12 1996-11-19 Yoshihiko Shimizu Organism material extraction device
JPH1133031A (en) * 1997-07-16 1999-02-09 Asahi Optical Co Ltd Treatment apparatus for tip expansible type endoscope
JPH11226024A (en) * 1998-02-17 1999-08-24 Olympus Optical Co Ltd Treating implement for endoscope
JP2001070307A (en) * 1999-09-01 2001-03-21 Fuji Photo Optical Co Ltd Tissue collecting apparatus

Also Published As

Publication number Publication date
JP4716808B2 (en) 2011-07-06

Similar Documents

Publication Publication Date Title
JP4481880B2 (en) Stent placement device
JP3607702B2 (en) Multiple biopsy sampling equipment
US8926642B2 (en) Method for extracting tubular structures
US9320531B2 (en) Medical device handles and related methods of use
JP4094445B2 (en) Endoscopic mucosal resection tool
JP4705201B2 (en) Biopsy tissue collection device
US8372132B2 (en) Stent inserting device
US20110190660A1 (en) Biopsy Devices
EP2923645A1 (en) Devices and systems for obtaining a tissue sample using a biopsy tool
JP5591416B2 (en) Endoscopic treatment tool
EP2740419A1 (en) Treatment instrument
JP2013509255A (en) Apparatus and method for performing full thickness tissue biopsy
JP6173652B2 (en) Tissue recovery tool and tissue recovery system
US11771455B2 (en) Endoscopic resection assembly
JP6430697B2 (en) Endoscopic puncture needle
JP4716808B2 (en) Biological tissue collection device
JP6071361B2 (en) Medical instruments
US10660665B2 (en) Surgical instruments for tissue removal
JP4832773B2 (en) Surgical instrument
JP6955650B2 (en) Endoscopic treatment aid
JP6324209B2 (en) Minimally invasive surgical instrument
JP2021104220A (en) Cylindrical member and excision portion extractor
JP2001286479A (en) Treatment appliance for endoscope
JPH02111353A (en) Gripping tool for endoscope

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080516

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101019

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101217

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110315

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110329

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140408

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250