JP2004195037A - Insertion port of medical treatment instrument - Google Patents

Insertion port of medical treatment instrument Download PDF

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Publication number
JP2004195037A
JP2004195037A JP2002369135A JP2002369135A JP2004195037A JP 2004195037 A JP2004195037 A JP 2004195037A JP 2002369135 A JP2002369135 A JP 2002369135A JP 2002369135 A JP2002369135 A JP 2002369135A JP 2004195037 A JP2004195037 A JP 2004195037A
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Japan
Prior art keywords
port
instrument
insertion port
treatment instrument
peripheral surface
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Pending
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JP2002369135A
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Japanese (ja)
Inventor
Tadashi Kagaya
Masaru Maruyama
勝 丸山
正 加賀谷
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Hakko Co Ltd
株式会社八光
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Priority to JP2002369135A priority Critical patent/JP2004195037A/en
Publication of JP2004195037A publication Critical patent/JP2004195037A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an insertion port of a medical treatment instrument capable of moving the angle of a mounted treatment instrument largely without a large burden on a human body and safely treating a wide space inside the body cavity from a single incision. <P>SOLUTION: The insertion port 11 consists of a soft and flexible cylindrical port peripheral surface 11, an instrument holder part 12 with rigidity disposed at a proximal end of the port peripheral surface 11 and a mounting means 14 disposed at a distal end of the port peripheral surface for mounting an instrument such as a sheath tube to a body part. The insertion port 11 has such a function as the peripheral surface of the port 11 is flexibly bent according to the angle changing motion when a treatment instrument etc. is held by the instrument holder part 12 and the angle of the instrument is changed with the instrument holder part 12 and the mounting means 14 being fixed (without being deformed). An airtight valve 15 may be mounted inside the insertion port 11. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】 [0001]
【産業上の利用分野】 BACKGROUND OF THE INVENTION
本発明は、主に内視鏡下外科手術のさいに、体腔内への内視鏡や処置器具の挿入通路となる外套管等において、処置器具類の出入り口となる挿入ポート部分に関する。 The present invention relates to Sai mainly an endoscopic surgical operation, in the mantle tube such as a insertion passage of the endoscope and the treatment instrument into a body cavity, for an insertion port portion that becomes the entrance of the treatment instrumentation.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
内視鏡下外科手術は、筒状の外套管を内針と共に経皮的に穿刺して、内針を抜去し、該外套管を通して体腔内に内視鏡や処置器具を挿入し、内視鏡画像を見ながら行う手術として発展してきたが、近年、この手術の適用の広がりや発達、また安全性、確実性が考慮さるなかで、体表に小切開を施し、この切開創を通してリング状などに形成された外套管の遠端側を体腔内に挿着し、体壁を開創した状態で体内外より挟持し、近端側に設けた挿入ポートから体腔内に処置器具を挿入して手術する、内視鏡下小切開手術が行われている。 Endoscopic surgical operation is to percutaneously puncture with the inner needle cylindrical mantle tube, the inner needle is removed, insert the endoscope or treatment instrument into the body cavity through 該Gaito tube, endoscope have been developed as surgery while viewing a mirror image, in recent years, the spread and development of application of this procedure, also safety, among monkey certainty consideration, subjected to a small incision in the body, a ring-shaped through the incision the far end of the mantle tube formed like is inserted into a body cavity, the body wall is sandwiched from inside and outside in a state where the retractor, by inserting a treatment instrument into the body cavity through the insertion port provided at the proximal end side surgery, the endoscopic small incision surgery has been performed.
【0003】 [0003]
このような小切開を施しての内視鏡下外科手術に使用する外套管としては、例えば、特開2002−28163のような切開創保持器具が開示されている。 Such a cannula for use in endoscopic surgery by applying a small incision, for example, incision holding device, such as JP 2002-28163 is disclosed. これは、対向配置した体表側リング及び可撓性の体腔内挿入側リングに筒状の弾性部材の両端部を拡張させて固定することにより鼓型に形成され、該体表側リングと体腔内挿入側リングで切開創を開創状態に挟む保持具本体と、該保持具本体の体表側リングに接合手段を介して脱着自在に取り付けられた他種類のプレート部材により基本構成されており、本発明の適用となる処置器具の挿入ポート部に関しては、他の外套管においても一般的と考えられる挿入ポート部として、該明細書中に、プレート部材に気腹手術のさいに気密を維持する弁を複数設けた多弁プレートが開示されている。 It is formed in a drum-type by fixing both ends to extend the opposed somatic front ring and a flexible body cavity insertion side ring cylindrical elastic member, inserting said body front ring and the body cavity a holder main body sandwiching the incision in the side ring retractor state are the basic structure by other types of plate member mounted detachably via a joining means on the body front ring of the holder main body, the present invention multiple regard to the insertion port of the application to become the treatment instrument, as an insertion port section also generally considered in other mantle tube, in 該明 Saisho, a valve to maintain the airtight again of pneumoperitoneum surgery plate member provided the multi-valve plates is disclosed. この多弁プレートの挿入ポート部は、プレート台と一体化された弁基部(ハウジング)内に、気密弁(クロス弁と開口弁の組み合わせ)を備えて構成されている。 Inserting the port portion of the multi-valve plate, in the integrated valve base and plate base (housing), and is configured with a gas-tight valve (a combination of cross valve and opening valve). また、別の外套管における一般的な処置器具の挿入ポートも、基本的にはハウジング内に器具を保持する保持部や気密弁を有して構成されている。 The insertion port of the common treatment instrument in another tubular mantle also basically is constructed with a holding portion and airtight valve for holding the instrument in the housing.
【0004】 [0004]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
しかし、前記した従来の外套管等の挿入ポートでは、挿入ポートに処置器具を挿着して、処置器具の角度を動かした場合、ハウジング(弁基部)や気密弁により処置器具の動作の範囲が規正されてしまうため、安全に外部から操作できる体腔内の範囲は限られたものとなり、広範に処置を行いたい場合は不便で、最悪の場合、処置の必要な部位に処置器具が到達できず、別のルート(切開創)を設ける必要が生じる事態となる可能性も孕んでいる。 However, in the insertion port, such as a conventional mantle tube described above, by inserting the treatment instrument insertion port, when you move the angle of the treatment instrument, the range of operation of the treatment instrument by the housing (valve base) and airtight valve because would be regulating, safe range in the body cavity that can be operated from the outside becomes what was limited, if you want to extensive treatment inconvenient, at worst, can not be treated instrument reaches the desired site of treatment fraught also likely to be a situation where it is necessary to provide another route (incision). 一方、人体は柔軟であるため、これを無理に大きく動かすことも可能ではあるが、外套管全体が動いてしまうため、該外套管の動作に追従して動く腹壁(切開創)に無理を強いることになり、また外套管全体と腹壁及び処置器具類の相対的位置がずれることで、腹壁固定部からの気腹ガスの漏れ、処置器具挿入部となる保持部の変形による気腹ガスの漏れなどが危惧されることから、結果、患者へ負担を増す事態となり、低侵襲といった内視鏡下手術の主旨から外れたものになってしまうことも考えられる。 On the other hand, since the human body is flexible, although it is possible to move forcibly increase this, since thereby moving the entire outer tube, forcing the force in the abdominal wall (incision) which moves to follow the operation of 該Gaito tube will be, and the relative positions of the mantle tube across the abdominal wall and treatment instrumentation that is shifted, leakage of pneumoperitoneum gas from the abdominal wall fixing portion, leakage of pneumoperitoneum gas due to the deformation of the holding portion to be treated tool insertion part from that such as is feared, as a result, become a situation to increase the burden to the patient, it is conceivable to become to that deviated from the spirit of the endoscopic surgery, such as minimally invasive.
【0005】 [0005]
そこで本発明は、処置器具等を挿入ポートに装着した状態で、人体に無理なく処置器具等の角度を大きく動かすことができ、一つの切開創から体腔内の広範囲な空間を安全に処置することができる使用勝手に優れた、医療用処置器具の挿入ポートを提供することを課題とした。 The present invention, in a state attached to the insert port treatment instrument or the like, can be moved a large angle such as reasonably treatment instrument to the human body, to securely treat a wide range of space in the body cavity from one incision is arbitrarily good use as possible, it has an object to provide an insertion port of the medical treatment instrument.
【0006】 [0006]
【課題を解決するための手段】 In order to solve the problems]
本発明の医療用処置器具挿入ポートは、柔軟で屈曲自在な可撓性樹脂により形成する筒状のポート周面と、該ポート周面の近端部に設ける、剛性を有する可撓性樹脂より形成する器具保持部と、前記ポート周面の遠端部に設ける、外套管等の本体部への装着手段より構成し、前記器具保持部に、前記挿入ポートの内腔と連通する挿入孔を設け、該挿入孔の孔面と当接させて処置器具等を保持して該処置器具等の角度を変更するさい、前記器具保持部と器具等の当接部、及び、前記装着手段は固定されたまま(形状が変形することがなく)、前記ポート周面が、変更動作に追従して自在な屈曲を可能とする機能を備えた挿入ポートとした。 The medical treatment instrument insertion port of the present invention includes a cylindrical port peripheral surface formed by a flexible and bendable flexible resin is provided on the proximal end of the port peripheral surface, of a flexible resin having a rigid an instrument holding portion formed, provided on the distal end of the port periphery, and constituted by mounting means to the main part of the mantle tube and the like, to the instrument holder, the lumen and communicating with the insertion hole of the insertion port provided, abutment again, the instrument holding portion and the instrument or the like holding the treatment instrument or the like is brought into contact with the hole surface of the insertion hole to change the angle such as the treatment instrument, and, said mounting means fixed remains (without shape deformation), said port peripheral surface and an insertion port having a function that enables a bendable to follow the changing operation.
【0007】 [0007]
また、前記挿入ポートは内部に、前記したポート周面の自在な屈曲を妨げない弾性を有する気密弁を設けて構成した。 Further, the insertion port therein, which is configured by providing a gas-tight valve having a resilient that does not interfere with the freely flexing port peripheral surface described above. 例えば、前記器具保持部より連接一体化され、挿入ポート周面に囲繞されるダックビル弁等で有ればよい。 For example, the is connected integrally from the instrument holder may be long in duckbill valve or the like which is surrounded by the insertion port circumference.
【0008】 [0008]
更に、前記挿入ポート周面を形成する柔軟で屈曲自在な可撓性樹脂は、ゴム弾性を有するシート状樹脂より形成すると一層良い。 Moreover, flexible and bendable flexible resin forming the insertion port peripheral surface, even better to form from sheet-like resin having rubber elasticity.
【0009】 [0009]
前記剛性を有する器具保持部と、柔軟なポート周面との硬軟を変化させる手段として、異なる硬度を有する同じ樹脂、または、異なった樹脂により各々を形成する手段を用いる。 An instrument holding portion having a rigid, as a means for changing the hardness of the flexible port periphery, the same resin having different hardnesses, or using a means for forming each a different resin.
【0010】 [0010]
また、前記剛性を有する器具保持部と、柔軟な挿入ポート周面との硬軟を変化させる別の手段として、同じ材料の樹脂を異なった厚さで形成する手段を用いる。 Further, the instrument holding portion having a rigid, as another means for changing the hardness of the flexible insertion port peripheral surface, using means for forming a resin of the same material with different thickness. 尚、該手段あるいは、前段の手段のいずれを選択するかは、状況に応じより利点の多い方を選択すれば良く、また器具保持部に補強材を用いるなどの別の手段によっても同一の作用が得られれば良い。 Incidentally, the means or the one to select the preceding unit, may be selected direction with many advantages over depending on the situation, also the same effect also by other means, such as with a reinforcing material to the instrument holder it only needs to be obtained.
【0011】 [0011]
【作用】 [Action]
本手段によれば、挿入ポートに挿着した処置器具は、器具保持部と処置器具の接触部及び外套管本体部への装着手段が固定されたまま、かつ、外套管全体(人体への装着部を含む)を動かすことなく、柔軟なポート周面のみが自在に屈曲し、体腔に対する処置器具の角度が大きく自在に変えられるため、体腔内の広範囲な部分に、人体や器具に無理なく処置器具先端の操作部分を到達させることができる。 According to this means, the treatment instrument is inserted into the insertion port, while the mounting means to the contact portion of the treatment instrument and the instrument holding portion and the outer tube main body is fixed, and, attached to the entire outer tube (body without moving the containing) a section, bent only flexible port peripheral surface freely, since the angle of the treatment instrument with respect the body cavity is greatly changed freely, the extensive portion of the body cavity, reasonably treat the human body and equipment the operation portion of the instrument tip can reach.
【0012】 [0012]
また、挿入ポートに弾性を有する気密弁を内包すると、前段の作用を大きく損なうことなく気腹手術に適応した挿入ポートとすることが可能で、更に前記ポート周面を弾性を有する柔軟な可撓性樹脂で形成することで屈曲と共に、伸縮も可能となり更に前記作用を助長させることができる。 Further, when containing a gas-tight valve having a resilient insertion port, it can be an insertion port adapted to pneumoperitoneum surgery without significantly impairing the preceding action, flexible yet has elasticity the port peripheral surface flexible with bending by forming at rESIN, stretching also it becomes possible thereby further promote the action.
【0013】 [0013]
更に、ポート周面と器具保持部の硬軟を変化させる手段として、異なる硬度の材料を使用すれば、硬度を自由に選択できることで、器具保持部には保持に十分な剛性を持たせ、挿入ポートには屈曲自在な適度な柔軟性を持たせることが容易にでき、前記作用をより確実にすることが期待できる。 Further, as means for changing the hardness of the port peripheral face and the instrument holding portion, different Using hardness of the material, by the hardness can be selected freely, to have sufficient rigidity to hold the instrument holding portion, the insertion port can easily be made to have a freely proper flexibility bending, it can be expected to secure the effect to.
一方、前記変化の手段として、同一材料で厚さを変える手段を用いると、挿入ポート全体を一体的に形成することが可能となり製造コストを押さえることが期待できる。 On the other hand, as a means of the change, using the means for changing the thickness of the same material, the entire insertion port can be expected to suppress the production cost becomes possible to integrally form.
【0014】 [0014]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
本発明の実施の形態の一例を図面を用いて詳細に説明する。 It will be described in detail with reference to the drawings of an example embodiment of the present invention.
【0015】 [0015]
図1は、本発明の実施の形態の一例を示す構成図で、外套管に装着した状態を示すものである。 Figure 1 is a block diagram showing an example of an embodiment of the present invention, showing a state of mounting the outer tube. 挿入ポート1は、処置器具等の通路となる柔軟な円筒状のポート周面11と、該ポート周面11の近端側に連設され、処置器具類を挿入し、かつ保持するための円形の挿通孔13を設けた、器具を保持可能な剛性を有する器具保持部12と、前記ポート周面11の遠端側に連設される、後記する外套管2の上リング21に装着される外套管装着部14及び、前記器具保持部12より連接され、挿入ポート周面11に囲繞され、挿入ポート1に内包される気密弁15より構成される。 Insertion port 1 includes a flexible cylindrical port peripheral surface 11 serving as a passage for such treatment implements are provided continuously to the near end of the port peripheral face 11, and insert the treatment instrumentation and circular for holding provided the insertion hole 13, the instrument holding portion 12 having rigidity capable of holding the device, is continuously provided on the far end of the port peripheral surface 11, it is mounted on the ring 21 of the mantle tube 2 to be described later cannula mounting portion 14 and is connected from the device holding portion 12, it is surrounded in the insertion port peripheral surface 11, comprised of airtight valve 15 which is contained in the insertion port 1. 一方外套管2は、特定するものではないが実施の一例として、挿入ポート1を装着可能な通孔を有したプレート状の、体壁に装着したさい体表側に置かれる上リング21と、体腔内に挿入され、前記上リング21と体壁を挟持して切開創を保持する下リング23と、円筒状の弾性を有する樹脂を上リング21と下リング23に両端部を拡張して固定し、切開創との接触部となり開創状態を維持する弾性部材22より構成される。 Meanwhile mantle tube 2, as an example of and not by way of specific embodiments, the plate-shaped the insertion port 1 having a wearable hole, an upper ring 21 to be placed again body front side attached to the body wall, the body cavity is inserted within a lower ring 23 for holding the incision by holding the the ring 21 and the body wall, the resin was fixed by extending the ends to the upper ring 21 and lower ring 23 having a cylindrical elastic , composed of an elastic member 22 to maintain the retractor state becomes the contact portion with the incision. ここで、外套管2に設ける挿入ポート1は一つであってもかまわないが、一つの場合は、前記した従来技術の特開2000−28163の弁プレートであっても類似の作用を生じるため、挿入ポート1複数を一つの外套管2に設けるものであると、本発明特有の特長が際立つものとなりより効果的である。 Here, the insertion port 1 provided in the outer tube 2 may be one, if one, because even a valve plate of the above-described prior art JP 2000-28163 produce similar effects When those providing the insertion port 1 more in one of the mantle tube 2, is more effective than it is assumed that the present invention specific features stand out.
【0016】 [0016]
図2は、本実施の形態の一例の挿入ポート1を示す断面図で、ポート周面11は、医療用であるため毒性のない、屈曲自在な柔軟で弾性を有する樹脂であれば特定するものではないが、本例においては肉薄のシリコーンゴムを円筒状に形成して用い、その外径や高さは使用状況により選択されるものであるが、自在に屈曲できる作用を十分に発揮するためには内部空間16を広くとると効果的であり、該外径や高さはスペースとの関係で可能な範囲で大きく取るように配慮されるものである。 Figure 2 is a sectional view showing the insertion port 1 of an example of the present embodiment, the port peripheral surface 11 is non-toxic for a medical, which specifies as long as it is a resin having a freely flexible and resilient bent but not, used to form silicone rubber thin cylindrically in this example, the outer diameter and height of which are selected depending on usage, to sufficiently exhibit the effects that can be bent freely in is effective to widen the internal space 16, the outer diameter and height of which are considered so a large extent possible in relation to the space. 尚、本例及び明細書のポート周面11は、円筒状としたが断面が八の字型に広がったもの等を含めたものを指しており、該八の字形状であると更に効果的となる可能性もある。 Incidentally, the port peripheral face 11 of this embodiment and herein are more effective when it has a cylindrical shape is pointing things, including such as those cross section spread figure-eight-type, is the figure-eight shape there is also likely to be.
【0017】 [0017]
器具保持部12は、毒性のない、処置器具を保持する十分な剛性を有する可撓性樹脂で有れば特定するものではないが、本例においては前記ポート周面11と同一のシリコーンゴムを肉厚とし、前記した処置器具類の挿入口となる挿入孔13を設けて、挿入ポート周面11と一体成型して形成した。 Device holding unit 12, non-toxic, is not intended to specify if any of a flexible resin having sufficient rigidity to hold the treatment instrument, the same silicone rubber and the port peripheral surface 11 in this example and thickness, provided with insertion holes 13 as the aforementioned treatment instrument such insertion opening, formed by integrally molding the insertion port peripheral surface 11.
また、挿入孔13は処置器具類の出入り口と共に、該処置器具類を気密的に保持するものであるため、弾性部材を用い、孔径を挿入する処置器具より僅かに小さな外径とすることで、挿入時は、弾性により処置器具により押し広げられて挿入可能で、使用時は、処置器具を挿入孔13の孔面が締め付けることにより気密的な保持を確実なものとしている。 The insertion hole 13 with the entrance of the treatment instrumentation, for the treatment instrumentation is to hold hermetically, using an elastic member, by a slightly smaller outer diameter than the treatment instrument insertion hole diameter, during insertion, elastic by insertable been spread by treatment implement, in use, it is assumed ensure hermetic retention by hole surface of the insertion hole 13 of treatment instrument tightened.
尚、前記したとおりこの器具保持部12は挿入ポート11と別の材料、あるいは同じ材料を硬度を変えて用いても良いが、その場合は、自在に硬度を選択できる利点があるが、2部品を別に成形し組み合わせる必要がありコスト高となる可能性があるは前述の通りである。 Incidentally, the above-mentioned as the instrument holding portion 12 is inserted port 11 and another material, or is the same material may be used to change the hardness, case has the advantage that freely can choose the hardness, 2 parts There can be a separately molded should cost to be combined as described above.
【0018】 [0018]
外套管装着部14は、外套管2へ挿入ポート1を取り付け一体化するためのもので、確実に装着されるものであればどのような手段を採ることも可能であるが、本例においては、該外套管挿着部14をポート周面11の遠端側に、該ポート周面11の外周側にリング状に突起させ、シリコーンゴムにより一体成形して連設し、外套管2の上リング21に設ける円形状の溝24に該外套管挿着部14を挿着して取り付けられる。 Cannula mounting portion 14 is for integrating attaching the insertion port 1 to the mantle tube 2, it is also possible to take any means as long as it is securely attached, in this example the 該Gaito pipe insertion portion 14 on the far end of the port peripheral face 11, is projecting in a ring shape on the outer peripheral side of the port peripheral face 11, consecutively provided integrally molded with silicone rubber, on the mantle tube 2 mounted by inserting the 該Gaito pipe insertion portion 14 in the circular groove 24 provided in the ring 21. 尚、更に確実な装着あるいは気密維持のためには、挿着部に可撓性のOリング(図示しない)等の装着補助具を取り付け固定する手段を用いると一層効果的となる。 In order to further secure the mounting or airtight maintained, (not shown) O-ring flexible insertion portion mounting aid comprising using the a more effective means for fixed attachment to such.
【0019】 [0019]
気密弁14は挿入ポート1に内包され、処置器具を装着して操作するさいにポート周面11の自在な屈曲を妨げないことが重要な条件となり、確実な気密性に加え、該挿入ポート1の内腔の空間16を大きく占有しないもの、そして挿入ポート周面11と同様な柔軟性を有するものが選択される。 The airtight valve 14 is contained in the insertion port 1, it becomes important conditions that do not interfere with the freely flexing port peripheral face 11 to again be manipulated by mounting the treatment instrument, in addition to reliable airtight, the insert port 1 It shall not increase occupied space 16 of the lumen of, and is selected to have the same flexibility as the inserting port peripheral surface 11. 本例においては、器具保持部12に連接しポート周面11に囲繞される、シリコーンゴムにより挿入ポート1全体を一体成型で形成した公知のダックビル弁として構成した。 In the present example, it is surrounded by the port peripheral face 11 and connected to the device holding portion 12, configured as a known duckbill valve formed by integrally molding the entire insert port 1 with silicone rubber. 尚、ダックビル弁については一般的であるため説明を省略するが、前記条件を考慮して機能面に支障がない範囲で極力小さく形成される。 Although not described for the duckbill valve is typically formed as small as possible within a range not to interfere the functional surface in consideration of the condition.
この気密弁14と器具保持部12の挿入孔13により、処置器具類を挿入した状態では挿入孔13により、一方、処置器具類が挿入されない状態では気密弁14により体腔内の気密は維持されている。 The insertion hole 13 of the gas-tight valve 14 and the instrument holding portion 12, the insertion hole 13 in a state of inserting the treatment instrumentation, whereas, airtightness inside the body cavity via a gas-tight valve 14 is in a state where the treatment instrumentation is not inserted is maintained there.
尚、気密弁14はダックビル弁の他スリット弁、クロス弁、フラップ弁などを上記条件に適合するように用いることもでき、更に気腹の維持が必要ない場合や重要でない場合、あるいは、処置器具を常に挿着した状態で使用する場合などでは気密弁自体を設けなくても良い。 The other slit valve airtight valve 14 is a duckbill valve, cross valves, etc. Flap valves can be used to fit the above conditions, further not important or when there is no need maintain pneumoperitoneum or the treatment instrument the may not be provided an air-tight valve itself is always such as when used in a state of being inserted.
また、本例は機能とコストのバランスを考慮して全ての部位を一体成形で形成したが、機能面を最優先して各部を最適材料で各々成形しても良い。 Further, the present example is formed by integrally molding all portions in consideration of the balance of functionality and cost, functional aspects may be respectively formed at an optimum material each unit the highest priority.
【0020】 [0020]
図3は、本実施の形態の一例の挿入ポートに処置器具を挿着した状態(A)、及び挿入ポートが屈曲した状態(B)を示す断面の模式図で、処置器具3を挿入ポート1より体腔内に挿入すると、処置器具3と器具保持部12の挿入孔13孔面が当接され器具が支持され(図A)、この状態で処置器具3の体腔に対する角度を変えると(図B)、前記した処置器具3は、挿入孔13の当接部に支持され器具保持部12への固定を維持し、かつ器具保持部12も変形することなく形状を維持した状態を保ち、更に、前記した外套管装着部14も固定されたまま形状を維持するため、外套管2全体が変形することなく元の人体装着状態を維持して、挿入ポート周面11のみが屈曲または/かつ伸縮して、処置器具3の角度の変化に対応した曲がった Figure 3 is a schematic cross-sectional view showing a state in which the state was inserted an example of the insertion port for the treatment instrument of this embodiment (A), and the insertion port is bent (B), inserting the treatment instrument 3 Port 1 more inserted into a body cavity, the insertion hole 13 hole surface treatment instrument 3 and the instrument holding portion 12 is supported abutment by the instrument (Fig. a), changing the angle with respect to the body cavity of the treatment instrument 3 in this state (FIG. B ), treatment implements 3 described above will maintain state against the contact portion is supported to maintain the fixing of the device holding portion 12, and to maintain the shape without even instrument holding section 12 is deformed in the insertion hole 13, further, since the cannula mounting portion 14 described above to maintain a fixed left shape, the entire mantle tube 2 to maintain the original body mounted state without deforming, only the insertion port peripheral face 11 is bent or / and inelastic Te, bent in response to changes in the angle of the treatment instrument 3 態となっている。 It has been on purpose. これにより、本発明の最大の特徴である前記作用となる人体や器具類に負担を掛けることなく、気密を維持したまま処置器具3を体腔に対して大きく角度を変えて動かすことが可能となっている。 Thus, it is possible without burdening the human body and instrumentation with the maximum the effect which is a feature of the present invention, the treatment instrument 3 while maintaining an airtight move changed greatly angle to the body cavity ing.
【0021】 [0021]
【発明の効果】 【Effect of the invention】
本発明の外套管ポートによれば、前記した作用により、一つの外套管(一カ所の創)より人体や外套管等の器具類に無理なく体腔内の広い範囲に処置器具類の操作部が到達することができ、広範への処置が可能となるため、結果として、内視鏡下外科手術における患者の負担を少なくすることができる。 According to the mantle tube port of the present invention, by the action described above, the operation of one of the mantle tube (one place of wound) from the wide range in the treatment instrumentation within the body cavity without difficulty to the instrument such as a human body or the mantle tubes You can reach, because the treatment to a wide range becomes possible, as a result, it is possible to reduce the burden of patients in an endoscopic surgical operation. また、前記、広範な処置部に処置器具を到達させる操作が無理なく、自在にできる作用により、取り回しが良く使い勝手に優れた器具となり術者への負担も小さくすることができる。 Furthermore, the extensive treatment no reasonable operation to reach a treatment instrument part, by the action that can be freely can maneuverability may be less load on the superior instrument and become surgeon usability. 更に、この作用により、これまで内視鏡下手術では困難とされる広範な手術部位への適用が可能となることが考えられ、内視鏡下外科手術の適用の可能性を広げることができる。 Furthermore, this action, which applies to the extensive surgical site which is difficult in endoscopic surgery it is possible thought to, it is possible to widen the possibilities of application of the endoscopic surgical operation .
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】発明の実施の形態の一例を示す構成図であって、被装着体となる外套管を含む全体図【図2】発明の実施の形態の一例を示す断面図【図3】発明の実施の形態の一例をであって、処置具を装着した状態の断面を示す模式図【符号の説明】 [1] A configuration diagram illustrating an example embodiment of the invention, cross-sectional view showing an example of an embodiment of an overall view and FIG. 2] invention comprising outer tube serving as the mounted body [3] invention met an example of embodiment, schematic view showing a section of a state of mounting the treatment instrument eXPLANATION oF REFERENCE nUMERALS
1. 1. 挿入ポート11. Insertion port 11. 挿入ポート周面12. Insertion port peripheral surface 12. 器具保持部13. Instrument holding section 13. 挿入孔14. The insertion hole 14. 外套管装着部15. Mantle tube mounting portion 15. 気密弁16. Airtight valve 16. 空間2. Space 2. 外套管21. The outer tube 21. 上リング22. The upper ring 22. 弾性部材23. The elastic member 23. 下リング24. The lower ring 24. 溝3. Groove 3. 処置器具 Treatment equipment

Claims (6)

  1. 内視鏡や処置器具の出入り口となる、外套管等の挿入ポートにおいて、柔軟で屈曲自在な可撓性樹脂により形成する筒状のポート周面と、 The entrance of the endoscope or treatment instrument, in the insertion port of the mantle tube such as a tubular port peripheral surface formed by a flexible and bendable flexible resin,
    該ポート周面の近端部に設ける、剛性を有する可撓性樹脂より形成する器具保持部と、 Provided at the proximal end portion of the port peripheral surface, and the instrument holding portion for forming from a flexible resin having a rigidity,
    前記ポート周面の遠端部に設ける、外套管等の本体部への装着手段より構成することを特徴とする医療用処置器具の挿入ポート。 Insertion port of the medical treatment instrument, wherein the providing the distal end of the port peripheral surface constitutes from mounting means to the main part of the mantle tube, and the like.
  2. 前記器具保持部に、前記挿入ポートの内腔と連通する挿入孔を設け、該挿入孔の孔面と当接させて処置器具等を保持し、該処置器具等の角度を変更するさい、前記器具保持部と器具等の当接部、及び、前記装着手段は固定されたまま(変形することなく)、前記ポート周面が、変更動作に追従して自在な屈曲を可能とする請求項1の医療用処置器具の挿入ポート。 To the instrument holder, the insertion port lumen communicating with inserting holes provided in, please abut against the hole surface of the insertion hole to hold the treatment instrument or the like, to change the angle such as the treatment instrument, wherein abutment utensils and instrument holding portion, and, according to claim 1 wherein the mounting means remains fixed (deformed without), said port peripheral surface, to allow a bendable to follow the changing operation insertion port of medical treatment instruments.
  3. 前記挿入ポートに内包される弾性を有する気密弁を設ける請求項1乃至2の医療用処置器具の挿入ポート。 Insertion port of claim 1 or 2 for medical treatment instrument provided with a gas-tight valve having elasticity to be encapsulated into the insertion port.
  4. 前記ポート周面を形成する柔軟で屈曲自在な可撓性樹脂は、ゴム弾性を有するシート状樹脂より形成する請求項1乃至3の医療用処置器具の挿入ポート。 Flexible and bendable flexible resin, add port of the medical treatment device according to claim 1 to 3, formed of a sheet-like resin having rubber elasticity to form the port circumference.
  5. 前記剛性を有する器具保持部と柔軟なポート周面は、異なる硬度を有する同じ、または、異なった樹脂により形成してなる請求項1乃至4の医療用処置器具の挿入ポート。 Insertion port of the flexible port peripheral face and the instrument holding portion having a rigid, the same has a different hardness, or a different form by a resin formed by claims 1 to 4 of the medical treatment instrument.
  6. 前記剛性を有する器具保持部と柔軟なポート周面は、同じ材料の樹脂を異なった厚さで形成してなる請求項1乃至4の医療用処置器具の挿入ポート。 Insertion port of the flexible port peripheral face and the instrument holding portion having a stiffness is obtained by forming a resin of the same material in different thicknesses claims 1 to 4 of the medical treatment instrument.
JP2002369135A 2002-12-20 2002-12-20 Insertion port of medical treatment instrument Pending JP2004195037A (en)

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