JP5567388B2 - Balloon-type organ pressure lifting device - Google Patents
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Description
本発明は、手術器具に係り、特に腹腔鏡や胸腔鏡手術施行時に組織の圧排、挙上に用いられるバルーン型臓器圧排挙上具に関する。 The present invention relates to a surgical instrument, and more particularly to a balloon-type organ pressure lifting tool used for tissue exclusion and elevation during laparoscopic or thoracoscopic surgery.
従来の組織牽引具する方法として、様々な鉗子が多く用いられてきた。しかし、鉗子では、それだけで１つのポートを占有し、また鉗子が金属であるゆえに組織の障害も小さくなかった。また、鉗子はその大きさの制限から、所望の組織の１箇所の点でしか圧排、挙上できず、通常の開腹術や開胸術で手術の助手が手で組織全体を圧排、挙上するような操作はできなかった。 Various forceps have been widely used as a conventional method for tissue traction. However, the forceps occupy one port by itself, and the forceps are made of metal, so the tissue damage is not small. In addition, due to the size of the forceps, it can be removed and raised only at one point of the desired tissue, and the surgical assistant can remove and raise the entire tissue by hand during normal laparotomy or thoracotomy. I couldn't do that.
ここで、特許文献１では、基部と、基部の先端部に設けられ被手術者の身体内に挿入され身体組織を移動させて圧排を行う術部と、術部の操作を行う操作部とを具備する手術用の圧排鉗子が開示されている。 Here, in Patent Document 1, a base, an operation part that is provided at the distal end of the base and is inserted into the body of the operated person to move the body tissue to perform exclusion, and an operation part that operates the operation part are provided. A surgical retraction forceps provided is disclosed.
ところで、上記従来構成のものにあっては所望の組織を１点でしか圧排、挙上できず又鉗子が金属であるがゆえに組織の障害も生じていた。また、その鉗子だけで１つのポートを占有してしまうといった欠点があった。 By the way, in the above-mentioned conventional configuration, a desired tissue can be evacuated and raised only at one point, and because the forceps is made of metal, a tissue failure has occurred. In addition, there is a disadvantage that only one forceps occupies one port.
本発明は上記事項に着目してなされたもので、その目的は、切除する組織や臓器を腹腔鏡や胸腔鏡の挿入ポートから透明楕円体状のバルーン型臓器圧排挙上具を腹腔または胸腔に挿入し、空気や二酸化炭素や生理食塩水を中に注入して円盤状に膨らまして手術視野の妨げになる周囲の臓器を圧排するまたは挙上することにある。これにより、切除する目的の臓器を見え易くして切除する。また、このバルーンは発光することにより、組織を透光して組織内の血管を認識し易くすることにある。 The present invention has been made paying attention to the above-mentioned matters. The purpose of the present invention is to remove a tissue or organ to be excised from a laparoscopic or thoracoscopic insertion port with a transparent ellipsoidal balloon-type organ pressure lifting device from the abdominal cavity or chest cavity. It is to insert, inject air, carbon dioxide, or physiological saline into it and swell it up in a disk shape to squeeze out or lift up the surrounding organs that obstruct the surgical vision. As a result, the target organ to be excised is excised with visibility. Further, the balloon emits light so that the tissue can be transmitted and the blood vessels in the tissue can be easily recognized.
上記目的を達成するために、本発明の一態様に係るバルーン型臓器圧排挙上具は、弾性と可塑性を有し、膨張収縮可能なバルーンと、上記バルーンに送気或いは脱気するチューブが少なくとも入ったコード部と、上記バルーンへの送気或いは脱気を制御するコントロール部と、を備え、上記バルーンには、処置具が組織とバルーンとの間に入り込み易いようにするための溝が形成されていることを特徴とする。 In order to achieve the above object, a balloon-type organ pressure lifting device according to one aspect of the present invention has at least a balloon having elasticity and plasticity, which can be inflated and contracted, and a tube that supplies or degass the balloon. And a control unit that controls air supply or deaeration to the balloon, and the balloon is formed with a groove for allowing the treatment tool to easily enter between the tissue and the balloon. It is characterized by being.
上記バルーンその外側表面には、輪状の取っ手が設けられていることとしてもよい。 A ring-shaped handle may be provided on the outer surface of the balloon.
上記バルーンは透明であり、当該バルーンを介しても圧排した組織が透視可能であることとしてもよい。 The balloon may be transparent, and the excised tissue may be seen through the balloon.
上記バルーンの基部に設けられた発光部を更に備え、上記コード部には、更に上記発光部に接続される電線コードが入っており、上記コントロール部は、上記発光部の発光を制御し、上記発光部の発光により上記バルーン全体を発光させて、挙上した組織を透見可能とすることとしてもよい。 Further comprising a light emitting part provided at the base of the balloon, the cord part further includes an electric wire cord connected to the light emitting part, the control part controls light emission of the light emitting part, The entire balloon may be caused to emit light by light emission from the light emitting unit so that the elevated tissue can be seen through.
本発明に係るバルーン型臓器圧排挙上具によれば、腹腔鏡や胸腔鏡の挿入ポートから腹腔または胸腔に挿入し、空気や二酸化炭素や生理食塩水を中に注入して円盤状に膨らまして手術視野の妨げになる周囲の臓器を圧排するまたは挙上することにより、切除する目的の臓器を見え易くして切除し易くすることが可能となる。また、バルーンを発光させることにより、組織を透光して組織内の血管を認識し易くすることが可能となる。 According to the balloon-type organ pressure lifting device according to the present invention, it is inserted into the abdominal cavity or the thoracic cavity from the insertion port of the laparoscope or the thoracoscope, and inflated into the disk shape by injecting air, carbon dioxide or physiological saline therein. By excluding or raising surrounding organs that impede the visual field of operation, it becomes possible to make the target organ to be excised easier to see and excise. In addition, by emitting light from the balloon, it is possible to easily recognize blood vessels in the tissue by transmitting the tissue.
以下、本発明の腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具に係る好適な実施形態について図面を参照しながら説明する。尚、本発明は以下の記述に限定されるものではなく、本発明の要旨を逸脱しない範囲において、適宜変更可能である。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a laparoscope, a thoracoscopic transparent light-emitting balloon type organ retraction, and a lifting tool of the present invention will be described with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.
以下、図１乃至図１２を参照して、本発明の実施の形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to FIGS.
図1は、本発明の実施形態に係る手術器具としての腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具の全体の概略構成を示す図である。 FIG. 1 is a diagram showing an overall schematic configuration of a laparoscope, a thoracoscopic transparent light-emitting balloon type organ exclusion, and a lifting tool as a surgical instrument according to an embodiment of the present invention.
同図に示されるように、この実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具は、バルーン１と、当該バルーン１の側面に取り付けられた取っ手２ａ，２ｂと、バルーン１の基部に配設された発光部３と、コード部４と、コントロール部５とからなる。バルーン１は、弾性と可塑性を有し、膨らましても溝があるように形付けられた透明のゴム等からなる弾性体部品である。取っ手２ａ，２ｂは、この例では、バルーン１の側面の２か所に設けられているが、その数はこれに限定されるものではない。バルーン１を移動させたいときに、輪状の取っ手２ａ，２ｂをバルーン１の外側に設置しているので、当該取っ手２ａ，２ｂを容易に鉗子で把持して移動させることができる。 As shown in the figure, the laparoscope, thoracoscopic transparent light emitting balloon type organ exclusion and lifting device according to this embodiment includes a balloon 1 and handles 2a and 2b attached to the side surface of the balloon 1. The light emitting unit 3 disposed at the base of the balloon 1, the cord unit 4, and the control unit 5 are included. The balloon 1 is an elastic part made of a transparent rubber or the like that has elasticity and plasticity and is shaped so as to have a groove even when inflated. In this example, the handles 2a and 2b are provided at two locations on the side surface of the balloon 1, but the number is not limited to this. When the balloon 1 is desired to be moved, since the ring-shaped handles 2a and 2b are installed outside the balloon 1, the handles 2a and 2b can be easily grasped and moved with forceps.
発光部３は、ＬＥＤ（Light Emitting Diode）等からなり、光を照射してバルーン１を発光させるものである。コード部４には、バルーン１に空気や二酸化炭素や生理食塩水を送気（送出）、脱気（脱出）するチューブと、発光部３に接続される電線コードとが入っている。コントロール部５は、バルーン１への上記二酸化炭素等の送気／脱気による膨張収縮や、上記発光部３の発光を制御する制御部として機能するものである。 The light emitting unit 3 includes an LED (Light Emitting Diode) or the like, and emits light to cause the balloon 1 to emit light. The cord part 4 contains a tube for supplying air (carbon dioxide) or physiological saline to the balloon 1 (delivery) and deaeration (escape), and an electric wire cord connected to the light emitting part 3. The control unit 5 functions as a control unit that controls expansion / contraction due to the supply / deaeration of the carbon dioxide or the like to the balloon 1 and the light emission of the light emitting unit 3.
このように、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具は、構造が簡単で、安価にでき、ディスポーザル（使い捨て）でも使用可能である。 As described above, the laparoscope, thoracoscopic transparent light-emitting balloon type organ retraction and lifting device according to the present embodiment have a simple structure, can be made inexpensive, and can be used even in a disposable (disposable) manner.
図２，３には、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具のバルーン１が腹壁を貫くポート２０を通過する過程を示している。図２に示されるように、ポート２０を通過するに際して、バルーン１の側面に設けられた取っ手２ａ，２ｂは、その長手方向がバルーン１の長手方向と平行となるように畳まれる。そして、図３に示されるように、バルーン１がポート２０を通過する。この取っ手２ａ，２ｂは弾性体でできているので、このように畳むことができるのである。 2 and 3 show a process in which the laparoscope, thoracoscopic transparent light emitting balloon type organ retraction, and the lifting device balloon 1 pass through the port 20 penetrating the abdominal wall according to the present embodiment. As shown in FIG. 2, when passing through the port 20, the handles 2 a and 2 b provided on the side surface of the balloon 1 are folded so that the longitudinal direction thereof is parallel to the longitudinal direction of the balloon 1. Then, as shown in FIG. 3, the balloon 1 passes through the port 20. Since the handles 2a and 2b are made of an elastic body, they can be folded in this way.
図４は、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具のバルーン１に送気して拡張させた様子を示している（横面図）。コントロール部５の制御によりコード部４を介してバルーン１に空気や二酸化炭素、生理食塩水が送気（送出）されると図示のようにバルーンが膨張する。この実施の形態の腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具は、このバルーン１の膨張の力により、臓器の所望とする部位を圧排、挙上するものである。また、組織や臓器をバルーン１で圧排したとき、透明のバルーン１を介して常に圧排した組織や臓器の状態（圧排したことにより血流障害を起こす）を臓器の色で確認することができる。 FIG. 4 shows a state in which a laparoscope, a thoracoscopic transparent light-emitting balloon type organ retraction, and a balloon 1 as a lifting tool are inflated by sending air according to the present embodiment (lateral view). When air, carbon dioxide, or physiological saline is supplied (sent out) to the balloon 1 through the cord part 4 under the control of the control part 5, the balloon is inflated as shown in the figure. The laparoscope, thoracoscopic transparent light-emitting balloon-type organ retraction / lifting device of this embodiment is configured to relieve and lift a desired site of the organ by the expansion force of the balloon 1. In addition, when a tissue or organ is evacuated with the balloon 1, the state of the tissue or organ that is always evacuated through the transparent balloon 1 (causing a blood flow disorder due to the evacuation) can be confirmed by the color of the organ.
図５は、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具の発光部３を発光させて、膨張したバルーン１を発光させた様子を示している。コントロール部５の制御の下、図中、矢印で示されるように、発光部３から光が照射されるので、バルーン１が発光する。このように、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具では、バルーン１の基部に発光部３を設け、バルーン１全体を発光させることで、挙上した組織を透見し、その中の血管などを認識することができる。 FIG. 5 shows a state in which the inflated balloon 1 is caused to emit light by causing the light emitting unit 3 of the laparoscope, thoracoscopic transparent light emitting balloon type organ exclusion and lifting tool to emit light according to the present embodiment. Under the control of the control unit 5, light is emitted from the light emitting unit 3 as indicated by arrows in the figure, so that the balloon 1 emits light. Thus, in the laparoscope, thoracoscopic transparent light emitting balloon type organ retraction and lifting tool according to the present embodiment, the light emitting unit 3 is provided at the base of the balloon 1 and the whole balloon 1 is caused to emit light. The tissue can be seen through and blood vessels and the like in the tissue can be recognized.
図６には、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具のバルーン１を正面から見た様子を示す。この図６より明らかなように、バルーン１には複数の溝が設けられている。バルーン１を膨張させて組織や臓器を挙上した後、楕円体状にバルーン１に溝があることで、超音波凝固切開装置等の処置具が組織とバルーン１の間に入り込み易い。これにより、挙上した組織や臓器を切開していくときに、通常の表面が平滑なバルーンよりも容易に挙上した組織を切開することができる。 FIG. 6 illustrates a laparoscope, a thoracoscopic transparent light emitting balloon type organ retraction, and a balloon 1 as a lifting tool according to this embodiment as viewed from the front. As apparent from FIG. 6, the balloon 1 is provided with a plurality of grooves. After the balloon 1 is inflated to raise the tissue or organ, the balloon 1 has a groove in the ellipsoidal shape, so that a treatment tool such as an ultrasonic coagulation and incision apparatus can easily enter between the tissue and the balloon 1. As a result, when the raised tissue or organ is incised, the elevated tissue can be incised more easily than a normal balloon having a smooth surface.
以上、本実施形態の構成及び作用について説明したが、次に図７乃至図１２を参照して手術施行時のオペレーションについて更に詳細に説明する。 The configuration and operation of the present embodiment have been described above. Next, the operation at the time of performing surgery will be described in more detail with reference to FIGS.
図７に示されるように、腹壁を貫くポート２０からバルーン１を前述したように取っ手２ａ，２ｂをたたんだ状態で腹腔内に挿入し、挿入後、取っ手２ａ，２ｂを再び開く。コード部４は細いので、バルーン１を腹腔内に挿入したら、ポート２０の脇から鉗子等の処置具も挿入できる。図７に示されるように、ポート２０から鉗子２００を挿入し、或いは図８に示されるように、別のポート２１から鉗子２００を挿入して、鉗子２００で取っ手２ａを把持してＳ状結腸１０１の腸間膜１００の下にバルーン１を入れ込む。 As shown in FIG. 7, the balloon 1 is inserted into the abdominal cavity from the port 20 penetrating the abdominal wall as described above, and the handles 2a and 2b are opened again after insertion. Since the cord portion 4 is thin, when the balloon 1 is inserted into the abdominal cavity, a treatment instrument such as forceps can be inserted from the side of the port 20. The forceps 200 is inserted from the port 20 as shown in FIG. 7, or the forceps 200 is inserted from another port 21 as shown in FIG. The balloon 1 is inserted under the mesentery 100 of 101.
そして、図９に示されるように、コントロール部５の制御の下、バルーン１に空気や二酸化炭素、生理食塩水を送気（送出）して当該バルーン１を拡張させて、Ｓ状結腸１０１を挙上する。このように組織を挙上した状態でも、図１０に示されるように、バルーン１には前述したような溝（図６で詳述）があるので、超音波切開凝固装置等を入れ易い。即ち、バルーン１を膨張させて組織や臓器を挙上した後、楕円体状にバルーン１に溝があることで、超音波凝固切開装置等の処置具が組織とバルーン１の間に入り込み易いので、挙上した組織や臓器を切開していくときに、通常の表面が平滑なバルーンよりも容易に挙上した組織（例えば病変１０２等）を切開することができる。 Then, as shown in FIG. 9, under the control of the control unit 5, air, carbon dioxide, and physiological saline are supplied (sent out) to the balloon 1 to expand the balloon 1, and the sigmoid colon 101 is formed. Raise. Even in a state where the tissue is lifted as described above, as shown in FIG. 10, since the balloon 1 has the groove (described in detail in FIG. 6) as described above, it is easy to insert an ultrasonic incision coagulation apparatus or the like. That is, after the balloon 1 is inflated to raise the tissue or organ, the balloon 1 has a groove in the balloon 1 so that a treatment instrument such as an ultrasonic coagulation and incision apparatus can easily enter between the tissue and the balloon 1. When the raised tissue or organ is incised, the elevated tissue (for example, the lesion 102) can be incised more easily than a normal balloon having a smooth surface.
また、そのとき、図１１に示されるように、コントロール部５の制御の下、発光部３を発光させて、図１１中矢印で示されるように、バルーン１を発光させて、Ｓ状結腸１０１の腸間膜１００内にある血管を透見する。そして、図１２に示されるように、ポート２１から腹腔鏡３００を挿入し、腹腔鏡下S状結腸切除術施行時に、S状結腸１０１の腸間膜１００を挙上して血管を透見しながら、安全に血管の処理をすることができる。この実施の形態では、バルーン１が透明なので、バルーン１を介しても奥の組織の状態を腹腔鏡３００で確認することができるのである。 Further, at that time, as shown in FIG. 11, under the control of the control unit 5, the light emitting unit 3 emits light, and the balloon 1 emits light as shown by the arrow in FIG. The blood vessels in the mesentery 100 are seen through. Then, as shown in FIG. 12, a laparoscope 300 is inserted from the port 21, and when performing laparoscopic sigmoid colectomy, the mesentery 100 of the sigmoid colon 101 is raised and the blood vessel is seen through. However, blood vessels can be safely processed. In this embodiment, since the balloon 1 is transparent, the state of the inner tissue can be confirmed with the laparoscope 300 even through the balloon 1.
以上説明したように、本発明の実施形態によれば、弾性と可塑性を有し、膨張収縮可能なバルーン１と、上記バルーン１に送気或いは脱気するチューブが少なくとも入ったコード部４と、上記バルーン１への送気或いは脱気を制御するコントロール部５とを備え、上記バルーン１には、超音波凝固切開装置等の処置具が組織とバルーン１との間に入り込み易いようにするための溝が形成されていることを特徴とする腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具が提供される。 As described above, according to the embodiment of the present invention, the balloon 1 has elasticity and plasticity and can be inflated and contracted, and the cord portion 4 containing at least a tube for supplying or degassing the balloon 1; And a control unit 5 for controlling air supply or deaeration to the balloon 1 so that a treatment instrument such as an ultrasonic coagulation incision device can easily enter between the tissue and the balloon 1. The present invention provides a laparoscope, a thoracoscopic transparent light-emitting balloon-type organ retraction, and a lifting tool, characterized in that a groove is formed.
上記バルーン１その外側表面には、輪状の取っ手２ａ，２ｂが設けられており、鉗子でバルーン１の位置を移動しやすいようにしてもよい。また、バルーン１は透明であり、当該バルーン１を介しても圧排した組織が透視可能であることとしてもよい。 Ring-shaped handles 2a and 2b are provided on the outer surface of the balloon 1, and the position of the balloon 1 may be easily moved with forceps. Further, the balloon 1 may be transparent, and the tissue that is evacuated through the balloon 1 may be seen through.
上記バルーン１の基部に設けられた発光部３を更に備え、コード部４には、更に上記発光部３に接続される電線コードが入っており、上記コントロール部５は、上記発光部３の発光を制御し、上記発光部３の発光により上記バルーン１全体を発光させて、挙上した組織を透見可能とすることを特徴としてもよい。 The light emitting unit 3 provided at the base of the balloon 1 is further provided. The cord unit 4 further includes an electric wire cord connected to the light emitting unit 3. The control unit 5 emits light from the light emitting unit 3. And the entire balloon 1 is caused to emit light by the light emission of the light emitting unit 3 so that the elevated tissue can be seen through.
従って、本実施形態に係る腹腔鏡、胸腔鏡下透明発光バルーン型臓器圧排、挙上具によれば、組織や臓器を圧排、挙上することまた組織を透見することにより、安全な視野で手術を行え、手術時間の短縮を実現することができる。 Therefore, according to the laparoscope, thoracoscopic transparent light emitting balloon type organ retraction and lifting tool according to the present embodiment, the tissue and organ can be relieved and raised, or the tissue can be seen through, with a safe field of view. Surgery can be performed and surgery time can be reduced.
以上、本発明の一実施形態につき説明したが、本発明はこれに限定されることなく、その主旨を逸脱しない範囲で種々の改良・変更が可能であることは勿論である。 Although one embodiment of the present invention has been described above, the present invention is not limited to this, and it is needless to say that various improvements and changes can be made without departing from the spirit of the present invention.
例えば、バルーンが万が一操作中に臓器や組織に間に隠れて、腹腔鏡で位置が解らなくなった時でも、バルーン部分にＸ線不透過物質を織り込んでおくことにより、手術中でもレントゲンでその位置を確認することができる。 For example, even if the balloon is hidden between organs and tissues during operation, and the position cannot be determined with a laparoscope, the position of the balloon can be detected with X-rays even during surgery by weaving a radiopaque material into the balloon. Can be confirmed.
また、バルーンは透明のものであるが、一部を縞状に不透明にしたり、水玉模等の様々な模様にバルーンを不透明にしたりして、透明バルーンの存在を解り易くしてもいい（全く透明だと紛れ込んだ時に解り難い）し、バルーン全体を半透明にしてもいい。 In addition, the balloon is transparent, but part of it may be made opaque in a striped pattern, or the balloon may be made opaque in various patterns such as polka dots, etc. It is difficult to understand when it is transparent, and the entire balloon may be translucent.
１ バルーン
２ａ 取っ手
２ｂ 取っ手
３ 発光部
４ コード部
５ コントロール部
２０ ポート
２１ ポート
１００ 腸間膜
１０１ Ｓ状結腸
１０２ 病変
２００ 鉗子
３００ 腹腔鏡
DESCRIPTION OF SYMBOLS 1 Balloon 2a Handle 2b Handle 3 Light emission part 4 Code part 5 Control part 20 Port 21 Port 100 Mesenteric 101 Sigmoid colon 102 Lesion 200 Forceps 300 Laparoscope
Claims (1)
上記バルーンの基部に設けられた発光部と、
上記バルーンに送気或いは脱気するチューブと、上記発光部に接続される電線コードが少なくとも入ったコード部と、
上記バルーンへの送気或いは脱気を制御すると共に、上記発光部の発光を制御するコントロール部と、
を備え、上記発光部の発光により上記バルーン全体を発光させて、挙上した組織を透見可能とし、上記バルーンには、処置具が組織とバルーンとの間に入り込み易いようにするための溝が形成されていること
を特徴とするバルーン型臓器圧排挙上具。 An elastic and plastic perforated to Rise Zhang contractible, the handle ring made of elastic material provided foldably on its outer surface, a transparent balloon,
A light emitting part provided at the base of the balloon;
A tube for feeding or degassing the balloon, a cord portion containing at least an electric wire cord connected to the light emitting portion ,
A control unit that controls air supply or deaeration to the balloon and controls light emission of the light emitting unit ;
And a light emitting device for causing the entire balloon to emit light by light emission of the light emitting unit so that the elevated tissue can be seen through, and a groove for allowing the treatment tool to easily enter between the tissue and the balloon. A balloon-type organ pressure lifting device characterized in that is formed.
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| CN108542463A (en) * | 2018-05-30 | 2018-09-18 | 王利明 | Surgical balloon filler |
| CN114073553B (en) * | 2020-08-17 | 2024-01-12 | 北京中科盛康科技有限公司 | Balloon dilator for laparoscopic surgery |
| CN116196122B (en) * | 2023-01-31 | 2024-04-05 | 极限人工智能有限公司 | Liver lifter |
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| JPS63302863A (en) * | 1987-06-01 | 1988-12-09 | Olympus Optical Co Ltd | Endogastric indwelling balloon |
| US5556389A (en) * | 1994-03-31 | 1996-09-17 | Liprie; Samuel F. | Method and apparatus for treating stenosis or other constriction in a bodily conduit |
| US6179854B1 (en) * | 1995-05-22 | 2001-01-30 | General Surgical Innovations, Inc. | Apparatus and method for dissecting and retracting elongate structures |
| US6015421A (en) * | 1997-05-15 | 2000-01-18 | General Surgical Innovations, Inc. | Apparatus and method for developing an anatomic space for laparoscopic procedures |
| DE10261575A1 (en) * | 2002-12-23 | 2004-07-08 | Nova Lung Gmbh | Device for cannulating a blood-carrying vessel and its use for cannulating blood-carrying vessels |
| US20050080313A1 (en) * | 2003-10-10 | 2005-04-14 | Stewart Daren L. | Applicator for radiation treatment of a cavity |
| US20060182873A1 (en) * | 2005-02-17 | 2006-08-17 | Klisch Leo M | Medical devices |
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