JP2000175920A - Biopsy forceps for endoscope - Google Patents
Biopsy forceps for endoscopeInfo
- Publication number
- JP2000175920A JP2000175920A JP10360967A JP36096798A JP2000175920A JP 2000175920 A JP2000175920 A JP 2000175920A JP 10360967 A JP10360967 A JP 10360967A JP 36096798 A JP36096798 A JP 36096798A JP 2000175920 A JP2000175920 A JP 2000175920A
- Authority
- JP
- Japan
- Prior art keywords
- forceps
- hole
- pair
- cups
- endoscope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Endoscopes (AREA)
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内視鏡の鉗子チ
ャンネルに挿通されて体腔内から生検組織標本を採取す
るために用いられる内視鏡用生検鉗子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biopsy forceps for an endoscope which is inserted into a forceps channel of an endoscope and used to collect a biopsy tissue sample from a body cavity.
【０００２】[0002]
【従来の技術】図９は一般的な内視鏡用生検鉗子の先端
部分を示しており、内視鏡の鉗子チャンネルに挿脱され
る可撓性のシース１内に挿通配置された操作ワイヤ２を
軸線方向に進退操作することによって、シース１の先端
に配置された一対の鉗子カップ１１が支軸１２を中心に
嘴状に開閉駆動するようになっている。2. Description of the Related Art FIG. 9 shows a distal end portion of a general biopsy forceps for an endoscope, which is inserted through a flexible sheath 1 inserted into and removed from a forceps channel of the endoscope. By operating the wire 2 in the axial direction, a pair of forceps cups 11 disposed at the distal end of the sheath 1 are driven to open and close in a beak shape around the support shaft 12.
【０００３】生検組織を採取する際には、操作ワイヤ２
を手元側に牽引して一対の鉗子カップ１１を閉じること
により、刃状に形成された各鉗子カップ１１の縁部によ
って組織が切断され、閉じた一対の鉗子カップ１１内に
生検組織標本が採取される。When collecting a biopsy tissue, the operation wire 2
To close the pair of forceps cups 11, the tissue is cut by the edges of each of the forceps cups 11 formed in a blade shape, and a biopsy tissue specimen is placed in the closed pair of forceps cups 11. Collected.
【０００４】[0004]
【発明が解決しようとする課題】一対の鉗子カップ１１
には、支軸１２が回転自在に嵌合する軸孔１３が各々に
穿設されている。しがって、図１０に示されるように、
軸孔１３が鉗子カップ１１の噛み合わせ面Ａの延長線上
に正確に形成されていれば、一対の鉗子カップ１１が図
９に示されるようにピッタリと噛み合い、生検組織を確
実に切断することができる。SUMMARY OF THE INVENTION A pair of forceps cups 11
, A shaft hole 13 into which the support shaft 12 is rotatably fitted is formed in each. Therefore, as shown in FIG.
If the shaft hole 13 is accurately formed on the extension of the engagement surface A of the forceps cup 11, the pair of forceps cups 11 are perfectly engaged with each other as shown in FIG. 9 to reliably cut the biopsy tissue. Can be.
【０００５】しかし実際には、機械加工誤差が生じるの
は避け難いことであり、図１１に示されるように軸孔１
３が本来の位置より外側にずれて、図１２に示されるよ
うに鉗子カップ１１の噛み合わせが先端で開いてしまっ
たり、図１３に示されるように軸孔１３が本来の位置よ
り内側にずれて、図１４に示されるように鉗子カップ１
１の噛み合わせが腹部で開いてしまい、生検組織の切断
が不確実になる場合が少なくない。なお、図１２と図１
４には、ずれの状態がやや誇張して示されている。However, actually, it is unavoidable that a machining error occurs, and as shown in FIG.
3, the engagement of the forceps cup 11 is opened at the tip as shown in FIG. 12, or the shaft hole 13 is shifted inward from the original position as shown in FIG. Then, as shown in FIG.
Often, the bite 1 opens in the abdomen, making the cutting of the biopsy tissue uncertain. FIG. 12 and FIG.
In FIG. 4, the state of deviation is shown somewhat exaggerated.
【０００６】そこで本発明は、軸孔の位置に機械加工誤
差等があっても、一対の鉗子カップが正しく噛み合わさ
れて、生検組織を確実に切断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。Accordingly, the present invention provides a biopsy forceps for an endoscope that can properly cut a biopsy tissue by properly engaging a pair of forceps cups even if there is a machining error or the like at a position of a shaft hole. The purpose is to provide.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡用生検鉗子は、内視鏡の鉗子チャン
ネルに挿脱されるシース内に挿通配置された操作ワイヤ
を軸線方向に進退操作することによって、上記シースの
先端に配置された一対の鉗子カップが支軸を中心に嘴状
に開閉駆動されるようにした内視鏡用生検鉗子におい
て、上記一対の鉗子カップには上記支軸が通される軸孔
が穿設されており、少なくとも一方の鉗子カップの軸孔
が上記一対の鉗子カップの噛み合わせ面に対して略直交
する方向に拡げられて上記支軸に対して変位可能に形成
されていることを特徴とする。In order to achieve the above-mentioned object, a biopsy forceps for an endoscope according to the present invention includes an operation wire inserted through a sheath inserted into and removed from a forceps channel of the endoscope. In the biopsy forceps for an endoscope, a pair of forceps cups disposed at the distal end of the sheath are driven to open and close in a beak-like manner around a spindle by operating the shaft in the axial direction. The cup is provided with a shaft hole through which the support shaft passes, and the shaft hole of at least one forceps cup is expanded in a direction substantially orthogonal to the mating surface of the pair of forceps cups to form the support hole. It is characterized by being formed displaceable with respect to the axis.
【０００８】なお、上記軸孔が、上記一対の鉗子カップ
の噛み合わせ面に対して略直交する方向に細長い長孔で
あってもよく、その場合、上記軸孔が上記一対の鉗子カ
ップの噛み合わせ面の延長線を挟んでその両側に延ばさ
れた長孔、又は上記軸孔が上記一対の鉗子カップの噛み
合わせ面の延長線の片側に延ばされた長孔であってもよ
い。It is to be noted that the shaft hole may be an elongated hole elongated in a direction substantially perpendicular to the mating surface of the pair of forceps cups. In this case, the shaft hole may be a bite of the pair of forceps cups. An elongated hole extending on both sides of the extension of the mating surface or an elongated hole extending on one side of the extension of the mating surface of the pair of forceps cups may be used.
【０００９】また、上記軸孔が、上記支軸に対して変位
可能な嵌合状態となる円形孔であってもよく、その場
合、上記一対の鉗子カップのうち一方の軸孔だけが上記
支軸に対して変位可能な嵌合状態となる円形孔であっ
て、各鉗子カップの先端から軸孔の最短縁部までの距離
を合致させてあってもよい。The shaft hole may be a circular hole which can be displaced with respect to the support shaft, and in this case, only one of the pair of forceps cups has the support hole. It is a circular hole that can be displaced with respect to the shaft, and the distance from the tip of each forceps cup to the shortest edge of the shaft hole may be matched.
【００１０】また、上記一対の鉗子カップのうち一方の
軸孔だけが上記支軸に対して変位可能な嵌合状態となる
円形孔であって、各鉗子カップの先端から軸孔の中心位
置までの距離を一致させてあってもよい。Further, only one shaft hole of the pair of forceps cups is a circular hole which can be displaced with respect to the support shaft, and extends from the tip of each forceps cup to the center of the shaft hole. May be matched.
【００１１】[0011]
【発明の実施の形態】図面を参照して本発明の実施の形
態を説明する。図２は、内視鏡用生検鉗子を示してお
り、図示されていない内視鏡の鉗子チャンネルに挿脱さ
れる可撓性のシース１は例えば密着巻コイルパイプから
なり、その内部には、軸線方向に進退自在に操作ワイヤ
が全長にわたって挿通配置されている。なおシース１
は、密着巻コイルパイプに可撓性チューブを被覆したも
のや、その他の構成をとってもよい。Embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows a biopsy forceps for an endoscope, and a flexible sheath 1 inserted into and removed from a forceps channel of an endoscope (not shown) is made of, for example, a tightly wound coil pipe. An operation wire is inserted through the entire length so as to be able to advance and retreat in the axial direction. In addition, sheath 1
May take the form of a tightly wound coil pipe covered with a flexible tube, or other configurations.
【００１２】シース１の基端（手元側）には、操作ワイ
ヤを進退操作させるための操作部２０が連結されてお
り、シース１の先端には、操作ワイヤによって駆動され
る先端作動部１０が連結されている。An operating section 20 for moving the operating wire forward and backward is connected to the proximal end (hand side) of the sheath 1, and a distal end operating section 10 driven by the operating wire is connected to the distal end of the sheath 1. Are linked.
【００１３】図１は先端作動部１０を示しており、シー
ス１の先端に、先側から大きなスリット３が形成された
先端本体４が連結固着されていて、そのスリット３の先
端近傍を横断する状態に、支軸１２が先端本体４に取り
付けられている。FIG. 1 shows a distal end working unit 10. A distal end body 4 having a large slit 3 formed from the front side is fixedly connected to the distal end of the sheath 1, and crosses the vicinity of the distal end of the slit 3. In this state, the support shaft 12 is attached to the distal end main body 4.
【００１４】一対の鉗子カップ１１は、支軸１２を中心
に嘴状に開閉するように各々支軸１２に回動自在に軸支
されており、鉗子カップ１１を開閉作動させるために操
作ワイヤ２によって駆動される公知のリンク機構１５が
スリット内に配置されている。The pair of forceps cups 11 are rotatably supported by the support shafts 12 so as to open and close in a beak shape about the support shafts 12. The operation wires 2 are used to open and close the forceps cups 11. A known link mechanism 15 driven by the motor is disposed in the slit.
【００１５】このリンク機構１５は、四つのリンク１５
１〜１５４を互いに回動自在に環状に連結したいわゆる
パンタグラフ状に形成されており、そのうちの先側の二
つのリンク１５１，１５２は、一対の鉗子カップ１１に
一体に連続して形成されていて、支軸１２を中心に回動
する。The link mechanism 15 has four links 15
1 to 154 are formed in a so-called pantograph shape in which the two links 151 and 152 are rotatably connected to each other in an annular manner. , Around the support shaft 12.
【００１６】その二つのリンク１５１，１５２と連結軸
１５５，１５６によって各々回動自在に連結された二つ
の中間リンク１５３，１５４は、連結軸１５７によって
後端側で駆動ロッド１５８に回動自在に連結されてい
る。The two intermediate links 153 and 154 which are rotatably connected to the two links 151 and 152 and the connecting shafts 155 and 156, respectively, are rotatably connected to the driving rod 158 at the rear end side by the connecting shaft 157. Are linked.
【００１７】駆動ロッド１５８には、操作ワイヤ２の先
端が連結固着されており、手元側（図１において右方）
からの遠隔操作によってリンク機構１０を動作させ、操
作ワイヤ２を先側へ押し込めば一対の鉗子カップ１１が
二点鎖線で示されるように開き、操作ワイヤ２を手元側
へ牽引すれば鉗子カップ１１が実線で示されるように閉
じる。The distal end of the operation wire 2 is connected and fixed to the drive rod 158, and is located near the hand (right side in FIG. 1).
When the link mechanism 10 is operated by remote control from the user and the operation wire 2 is pushed toward the front side, the pair of forceps cups 11 is opened as shown by a two-dot chain line. Close as shown by the solid line.
【００１８】図３は、上述のように構成された内視鏡用
生検鉗子の一対の鉗子カップ１１のうちの一方を示して
おり、支軸１２が通される軸孔１３として、鉗子カップ
の噛み合わせ面Ａに対して略直交する方向に細長い長孔
が穿設されている。図示されていない他方の鉗子カップ
１１の軸孔１３は、支軸１２がガタつきなく挿通される
太さに形成されている。FIG. 3 shows one of a pair of forceps cups 11 of the biopsy forceps for an endoscope constructed as described above. A long and narrow hole is formed in a direction substantially perpendicular to the meshing surface A. The shaft hole 13 of the other forceps cup 11 (not shown) is formed to have a thickness through which the support shaft 12 is inserted without looseness.
【００１９】この軸孔１３の幅Ｗは支軸１２がほとんど
ガタつきなく通る寸法であり、長さＬは、鉗子カップ１
１の噛み合わせ面Ａの延長線を挟んでその両側に延ばさ
れて、支軸１２に対して変位可能に形成されている。具
体的には、支軸１２の直径より例えば０．３〜０．５ｍ
ｍ程度長く形成されている。The width W of the shaft hole 13 is a dimension through which the support shaft 12 passes with little play, and the length L is the forceps cup 1
It extends on both sides of the extension line of the first engagement surface A and is formed so as to be displaceable with respect to the support shaft 12. Specifically, the diameter of the support shaft 12 is, for example, 0.3 to 0.5 m.
m.
【００２０】その結果、他方の鉗子カップ１１の軸孔１
３に位置ずれがある場合でも、長孔状に形成された軸孔
１３が支軸１２に対して偏位し、図１に示されるように
一対の鉗子カップ１１が常にピッタリと閉じる状態にな
る。As a result, the shaft hole 1 of the other forceps cup 11
Even when the position 3 is misaligned, the shaft hole 13 formed in the shape of a long hole is deviated with respect to the support shaft 12, and the pair of forceps cups 11 is always in a state of being perfectly closed as shown in FIG. .
【００２１】なお、他方の鉗子カップ１１の軸孔１３の
ずれが、図１２に示されるように鉗子カップ１１の先端
に隙間を開かせるものである場合には、図４に示される
ように、鉗子カップ１１の噛み合わせ面Ａの延長線から
内方にだけ延びた長孔状の軸孔１３であってもよい。In the case where the displacement of the shaft hole 13 of the other forceps cup 11 causes a gap to be opened at the tip of the forceps cup 11 as shown in FIG. 12, as shown in FIG. An elongated shaft hole 13 extending only inward from an extension of the engagement surface A of the forceps cup 11 may be used.
【００２２】また、他方の鉗子カップ１１の軸孔１３の
ずれが図１４に示されるように鉗子カップ１１の腹部に
隙間を開かせるものである場合には、図５に示されるよ
うに、鉗子カップ１１の噛み合わせ面Ａの延長線から外
方にだけ延びた長孔状の軸孔１３であってもよい。ま
た、一対の鉗子カップ１１の軸孔１３を両方とも長孔に
してもよい。In the case where the displacement of the shaft hole 13 of the other forceps cup 11 causes a gap to be opened in the abdomen of the forceps cup 11 as shown in FIG. 14, the forceps as shown in FIG. It may be a long hole-shaped shaft hole 13 extending only outward from an extension of the engagement surface A of the cup 11. Further, both the shaft holes 13 of the pair of forceps cups 11 may be elongated holes.
【００２３】図６は、本発明の第２の実施の形態の内視
鏡用生検鉗子の先端作動部１０を示しており、一方の鉗
子カップ１１の軸孔１３の形状を、支軸１２に対して変
位可能な嵌合状態となる円形孔にしたものであり、他方
の鉗子カップ１１の軸孔１３は、支軸１２がガタつきな
く挿通される太さに形成されている。その他は上述の第
１の実施の形態と同じである。FIG. 6 shows a distal end operating portion 10 of an endoscope biopsy forceps according to a second embodiment of the present invention. The shape of a shaft hole 13 of one forceps cup 11 is changed to a support shaft 12. And the shaft hole 13 of the other forceps cup 11 is formed to have a thickness through which the support shaft 12 can be inserted without looseness. Others are the same as the above-described first embodiment.
【００２４】軸孔１３の直径は、例えば支軸１２の直径
に比べて０．３〜０．５ｍｍ程度大きく、このように構
成しても第１の実施の形態と同様に一対の鉗子カップ１
１の噛み合わせ面Ａどうしを隙間なく閉じることができ
る。The diameter of the shaft hole 13 is, for example, about 0.3 to 0.5 mm larger than the diameter of the support shaft 12, and even with such a configuration, a pair of forceps cups 1 is formed similarly to the first embodiment.
The first mating surfaces A can be closed without gaps.
【００２５】このような構造において、一対の鉗子カッ
プ１１が噛み合わせの際に前後方向にずれないようにす
るためには、図７に示されるように、各鉗子カップ１１
の先端から最短距離に位置する軸孔１３の縁部までの距
離Ｙを、一対の鉗子カップ１１間で合致させるとよい。In such a structure, in order to prevent the pair of forceps cups 11 from shifting in the front-rear direction at the time of engagement, as shown in FIG.
The distance Y from the tip of the pair of forceps cups 11 to the edge of the shaft hole 13 located at the shortest distance may be matched.
【００２６】ただし、図８に示されるように、各鉗子カ
ップ１１の先端から軸孔１３の中心位置までの距離を一
致させると、噛み合わせ時に鉗子カップ１１の先端どう
しが僅かに前後方向にずれるが、そこに挟まれる生検組
織に剪断力が作用して、むしろよく切断される場合もあ
る。However, as shown in FIG. 8, when the distances from the tip of each forceps cup 11 to the center of the shaft hole 13 are matched, the tips of the forceps cups 11 are slightly displaced in the front-rear direction at the time of engagement. However, in some cases, the biopsy tissue sandwiched between them is subjected to shearing force and is rather cut well.
【００２７】[0027]
【発明の効果】本発明によれば、少なくとも一方の鉗子
カップの軸孔を一対の鉗子カップの噛み合わせ面に対し
て略直交する方向に拡げて支軸に対して変位可能に形成
したことにより、一対の鉗子カップが閉じられると軸孔
が支軸に対して偏位して、軸孔の位置に機械加工誤差が
あっても一対の鉗子カップが正しく噛み合わされ、生検
組織を確実に切断することができる。According to the present invention, the shaft hole of at least one forceps cup is expanded in a direction substantially perpendicular to the mating surfaces of the pair of forceps cups so as to be displaceable with respect to the support shaft. When the pair of forceps cups is closed, the shaft hole is displaced with respect to the support shaft, and even if there is a machining error at the position of the shaft hole, the pair of forceps cups are properly engaged and the biopsy tissue is reliably cut. can do.
【図１】本発明の第１の実施の形態の内視鏡用生検鉗子
の先端部分を一部断面で示す側面図である。FIG. 1 is a side view showing a partial cross section of a distal end portion of an endoscope biopsy forceps according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態の内視鏡用生検鉗子
の側面図である。FIG. 2 is a side view of the biopsy forceps for an endoscope according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態の一方の鉗子カップ
の側面図である。FIG. 3 is a side view of one forceps cup according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の一方の鉗子カップ
の変形例の側面図である。FIG. 4 is a side view of a modified example of one forceps cup according to the first embodiment of the present invention.
【図５】本発明の第１の実施の形態の一方の鉗子カップ
の第２の変形例の側面図である。FIG. 5 is a side view of a second modified example of one forceps cup according to the first embodiment of the present invention.
【図６】本発明の第２の実施の形態の内視鏡用生検鉗子
の先端部分を一部断面で示す側面図である。FIG. 6 is a side view showing a partial cross section of a distal end portion of an endoscope biopsy forceps according to a second embodiment of the present invention.
【図７】本発明の第２の実施の形態の一方の鉗子カップ
の側面図である。FIG. 7 is a side view of one forceps cup according to the second embodiment of the present invention.
【図８】本発明の第２の実施の形態の一方の鉗子カップ
の変形例の側面図である。FIG. 8 is a side view of a modified example of one forceps cup according to the second embodiment of the present invention.
【図９】従来の内視鏡用生検鉗子の先端部分を一部断面
で示す側面図である。FIG. 9 is a side view showing a distal end portion of a conventional endoscope biopsy forceps in a partial cross section.
【図１０】従来の一方の鉗子カップの側面図である。FIG. 10 is a side view of one conventional forceps cup.
【図１１】従来の一方の鉗子カップの側面図である。FIG. 11 is a side view of one conventional forceps cup.
【図１２】従来の内視鏡用生検鉗子の先端部分を一部断
面で示す側面図である。FIG. 12 is a side view showing a distal end portion of a conventional endoscope biopsy forceps in a partial cross section.
【図１３】従来の一方の鉗子カップの側面図である。FIG. 13 is a side view of one conventional forceps cup.
【図１４】従来の内視鏡用生検鉗子の先端部分を一部断
面で示す側面図である。FIG. 14 is a side view showing a distal end portion of a conventional biopsy forceps for an endoscope in a partial cross section.
１ シース ２ 操作ワイヤ １１ 鉗子カップ １２ 支軸 １３ 軸孔 Ａ 噛み合わせ面 DESCRIPTION OF SYMBOLS 1 Sheath 2 Operation wire 11 Forceps cup 12 Support shaft 13 Shaft hole A Engagement surface
Claims (7)
ス内に挿通配置された操作ワイヤを軸線方向に進退操作
することによって、上記シースの先端に配置された一対
の鉗子カップが支軸を中心に嘴状に開閉駆動されるよう
にした内視鏡用生検鉗子において、 上記一対の鉗子カップには上記支軸が通される軸孔が穿
設されており、少なくとも一方の鉗子カップの軸孔が上
記一対の鉗子カップの噛み合わせ面に対して略直交する
方向に拡げられて上記支軸に対して変位可能に形成され
ていることを特徴とする内視鏡用生検鉗子。A pair of forceps cups disposed at the distal end of the sheath are pivoted by operating an operation wire inserted through a sheath inserted into and removed from a forceps channel of an endoscope in an axial direction. In the biopsy forceps for an endoscope, which is driven to open and close in a beak shape around the center, a shaft hole through which the support shaft passes is formed in the pair of forceps cups, and at least one forceps cup is provided. The biopsy forceps for an endoscope is characterized in that the shaft hole is extended in a direction substantially perpendicular to the engagement surface of the pair of forceps cups and is displaceable with respect to the support shaft.
合わせ面に対して略直交する方向に細長い長孔である請
求項１記載の内視鏡用生検鉗子。2. A biopsy forceps for an endoscope according to claim 1, wherein said shaft hole is an elongated hole elongated in a direction substantially perpendicular to a mating surface of said pair of forceps cups.
わせ面の延長線を挟んでその両側に延ばされた長孔であ
る請求項２記載の内視鏡用生検鉗子。3. The biopsy forceps for an endoscope according to claim 2, wherein said shaft hole is a long hole extending on both sides of an extension of a mating surface of said pair of forceps cups.
わせ面の延長線の片側に延ばされた長孔である請求項２
記載の内視鏡用生検鉗子。4. The shaft hole is an elongated hole extending to one side of an extension of an engagement surface of the pair of forceps cups.
The biopsy forceps for an endoscope according to the above.
嵌合状態となる円形孔である請求項１記載の内視鏡用生
検鉗子。5. A biopsy forceps for an endoscope according to claim 1, wherein said shaft hole is a circular hole which can be displaced with respect to said support shaft.
けが上記支軸に対して変位可能な嵌合状態となる円形孔
であって、各鉗子カップの先端から軸孔の最短縁部まで
の距離を合致させてある請求項５記載の内視鏡用生検鉗
子。6. A circular hole in which only one shaft hole of said pair of forceps cups is in a fitted state displaceable with respect to said support shaft, and a shortest edge portion of said shaft hole from the tip of each forceps cup. 6. The biopsy forceps for an endoscope according to claim 5, wherein the distance to the endoscope is matched.
けが上記支軸に対して変位可能な嵌合状態となる円形孔
であって、各鉗子カップの先端から軸孔の中心位置まで
の距離を一致させてある請求項５記載の内視鏡用生検鉗
子。7. A circular hole in which only one shaft hole of said pair of forceps cups is in a fitted state displaceable with respect to said support shaft, from a tip of each forceps cup to a center position of said shaft hole. The biopsy forceps for an endoscope according to claim 5, wherein the distances of the biopsy forceps are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36096798A JP4223606B2 (en) | 1998-12-18 | 1998-12-18 | Endoscopic biopsy forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36096798A JP4223606B2 (en) | 1998-12-18 | 1998-12-18 | Endoscopic biopsy forceps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000175920A true JP2000175920A (en) | 2000-06-27 |
| JP4223606B2 JP4223606B2 (en) | 2009-02-12 |
Family
ID=18471648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36096798A Expired - Fee Related JP4223606B2 (en) | 1998-12-18 | 1998-12-18 | Endoscopic biopsy forceps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4223606B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8469993B2 (en) | 2003-06-18 | 2013-06-25 | Boston Scientific Scimed, Inc. | Endoscopic instruments |
| US9681857B2 (en) | 2003-06-18 | 2017-06-20 | Boston Scientific Scimed, Inc. | Endoscopic instruments and methods of manufacture |
-
1998
- 1998-12-18 JP JP36096798A patent/JP4223606B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8469993B2 (en) | 2003-06-18 | 2013-06-25 | Boston Scientific Scimed, Inc. | Endoscopic instruments |
| US9681857B2 (en) | 2003-06-18 | 2017-06-20 | Boston Scientific Scimed, Inc. | Endoscopic instruments and methods of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4223606B2 (en) | 2009-02-12 |
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