JP3794772B2 - Bipolar electrocoagulation and incision tweezers - Google Patents

Bipolar electrocoagulation and incision tweezers Download PDF

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Publication number
JP3794772B2
JP3794772B2 JP32583796A JP32583796A JP3794772B2 JP 3794772 B2 JP3794772 B2 JP 3794772B2 JP 32583796 A JP32583796 A JP 32583796A JP 32583796 A JP32583796 A JP 32583796A JP 3794772 B2 JP3794772 B2 JP 3794772B2
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incision
tweezers
bipolar
arm
bipolar electrocoagulation
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JPH10151139A (en
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和夫 端
武志 大倉
智彦 浅原
伸広 鏡沼
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Johnson and Johnson KK
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Johnson and Johnson KK
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Description

【0001】
【産業上の利用分野】
本発明は、外科手術、主として脳神経外科手術において、止血及び切開操作に用いられる双極電気凝固及び切開用ピンセットと潅流液源とを具備する双極電気凝固及び切開用ピンセット装置に関する。
【0002】
【従来の技術】
従来より外科手術、特に脳神経外科手術においては、高周波発生装置に接続する双極の電極を備え、互いに絶縁され、腕先端の双極電気凝固及び切開部が常態時は開放常態を維持するよう付勢され、腕先端の双極電気凝固及び切開部を除いて絶縁皮膜を形成した2本の腕を有する双極電気ピンセットが使用されており、ピンセットの腕先端の双極電気凝固及び切開部で生体組織あるいは血管を挟持し高周波電流を通電することにより、生体組織あるいは血管を凝固あるいは切開することが可能である。
【0003】
前記ピンセットの腕の一方の内側に潅流管が配設してあり、生理食塩水またはその他の液体が流出され高周波の通電による凝固及び切開操作時の発熱温度を低下させることなどにより生体組織への損傷を最小限におさえられることができると共に焼灼された生体組織部分がピンセットの腕先端の双極電気凝固及び切開部に付着することによる凝固能及び切開能の低下を妨げている。
【0004】
しかし、従来のこのような構造のピンセットは、腕の一方の内側だけに潅流管が配設されているので生体組織をつまんで凝固・切開操作をした際、ピンセットの一方の腕の腕先端の双極電気凝固及び切開部は潅流液の影響を受けないため焼灼された組織部分がピンセットの腕先端の双極電気凝固及び切開部に付着することによる凝固能及び切開能の低下を十分に防止することが困難であった。
【0005】
最近では、一本の軟性チューブからなる潅流管をピンセットの腕の中間部分で二方向に分岐させた双極電気ピンセット(特公平3−31460)が提案されており、液そのものはピンセットの両端から流出するよう示されている。
【0006】
しかしながら、前記の構成であると、生体組織の凝固及び切開操作を実施すると、ピンセットの腕先端の双極電気凝固及び切開部にて高周波電流を通電させると同時に、ピンセットの双方の腕から潅流液が流出するが、潅流ラインの液源は一つであり主に潅流液は生理食塩水等を用いることから電導性を有してるので高周波電流が生理食塩水を媒体として短絡状態となりピンセット腕先端の双極電気凝固及び切開部での凝固・切開操作に好ましくない不安定な高周波電流通電になっていた。
【0007】
【発明が解決しようとする課題】
本発明は、双極電気凝固及び切開用ピンセットにおいて、高周波電流の通電により過熱された生体組織がピンセット腕先端の双極電気凝固及び切開部に付着する焼き付き現象を抑え、凝固能及び切開能の低下防止を目的とする。
【0008】
【課題を解決するための手段】
上記の課題を解決しるために本発明は、双極電気凝固及び切開用ピンセットにおいて、双方の腕の内側それぞれ独立かつ絶縁された2本の潅流管を埋め込み配設し、ハウジング内でまたは近接して2つの潅流液源に接続する2つの輸液ラインとを接続する構造とし、各腕先端の双極電気凝固及び切開部にそれぞれ潅流液を供給することによって生体組織あるいは血管の一部がピンセット腕先端の双極電気凝固及び切開部に付着する焼き付き現象の防止効果を飛躍的に向上させ、凝固能及び切開能の低下を防止できる。
【0009】
【発明の実施形態】
以下、本発明の実施例を図面に基づいて詳細に説明する。
【0010】
図1は、本発明の−実施例に係る双極電気凝固及び切開用ピンセット1の平面図である。また図2は、片側の腕の内側表面図を示したものである。腕2、3は、腕先端の双極電気凝固及び切開部9、10及びグリップ部4、5をそれぞれ有する。各腕2、3は、腕先端の双極電気凝固及び切開部を除き表面部2a、3aにおいて電気絶縁物によりコーティングしてピンセット本体に絶縁皮膜を形成し、また、各腕2、3は、各電極6、7と接続しておりハウジング部8において互いに絶縁され、腕先端の双極電気凝固及び切開部が常態時は開放状態を維持するよう付勢され、電気絶縁物の接着剤にて固定されている。
【0011】
前記各腕2、3の内側表面には腕先端の双極電気凝固及び切開部9、10近傍よりグリップ部4、5後方まで溝11、12を設け、この溝11、12に沿って互いに独立かつ絶縁された2本の潅流管13、14がその全部を埋め込まれており、前記潅流管13、14の後端はハウジング部8にそれぞれ独立し、絶縁された2つの潅流液接続口15、16に連結しハウジング部8内で接着剤17にて固定されている。また、腕先端の双極電気凝固及び切開部は同軸上の暫時小径となるテーパー面を有したステンレス鋼もしくはチタン鋼管を用いることで、各腕2、3は腕先端の双極電気凝固及び切開部に向かって暫時細くなる内表面の溝11に潅流管13、14を埋め込むことが可能となる。
【0012】
術者の視野は主として双極電気凝固及び切開ピンセットの両腕間より確保されることからピンセットの挟持を行うと潅流管13、14は術者の視野の障害となることが懸念されていたが、視野の障害となる潅流管が双方の腕の内側の溝11に配設されていることで、腕先端の双極電気凝固及び切開部9、10が見えにくくなることを防止し、止血位置あるいは切開位置を正確に挟持することも可能となる。
【0013】
そのことに加え、2本の潅流管13、14を独立することで潅流液源も2系列にする必要があるが、2系列の潅流液源を有することで成分の違う液を使用することが可能となる、たとえば一方には生理食塩水を液源とし、他方には人工脳脊髄液(マンニトール5%水溶液)を使用することで、いっそう安定した凝固・切開に好ましい有効な高周波電流通電を行うことが凝固・切開に好ましい有効な高周波電流通電を行うことが可能となる。
【0014】
このような構造になっていると双極電気凝固及び切開用ピンセットの各腕の腕先端の双極電気凝固及び切開部それぞれに確実に潅流液を逓送することができることで生体組織あるいは血管の一部がピンセット腕先端の双極電気凝固及び切開部に付着する焼き付き現象の防止効果を飛躍的に向上させ、凝固能及び切開能の低下を防止できる。
【0015】
本発明の一実施例に係わるピンセットを各装置との使用例を図3の接続配置図により説明する。バイポーラピンセット1は高周波発生装置22で発生させた高周波電流をバイポーラコード21により伝えられるように構成されている。生理食塩水等の潅流液は18aと18bで示される各独立した潅流液源から輸液チユーブ19a、19bを通して潅流液制御装置20へ送られ、流速をコントロールしながら、更にバイポーラピンセット1内の2本の潅流管に流れるように接続されている。
【0016】
本発明の効果を測定するために次の手順に従って試験を実施した。
【0017】
【試験1】
そこで、焼付き性の評価法として、高周波発生装置(コッドマン マリス・バイポーラ凝固・切開装置 CMC−II)からバイポーラコード(コッドマン・品番30−1536)を使用し、それぞれ市販の双極電気ピンセット(コッドマン 品番80−1552)、ジョンソン・エンド・ジョンソン メディカル株式会社 品番80−9000チタン合金)と本発明の一実施例に係わる双極電気ピンセットを接続、そして高周波発生装置の出力を60に設定し凝固モードにて一箇所に5秒間豚の肝臓に通電し、通電が可能な回数を測定し、ピンセット腕先端の双極電気凝固及び切開部の焼付き状態を観察した。
【0018】
試験1の測定結果を以下の表に示す。
【0019】
【表1】

Figure 0003794772
【0020】
本発明の双極電気ピンセットと市販されている双極電気ピンセットの比較は、生体条件内での連続通電測定結果からわかるように、生体組織である豚の肝臓組織に使用した結果焼き付き防止に関して有効であると確認された。
【0021】
【実施例1】
実際の脳神経外科手術において従来技術の双極電気凝固及び切開用ピンセットと、本発明の−実施例に係わる双極電気凝固及び切開用ピンセットを比較した。双極電気凝固及び切開用ピンセットを2本用意し、片方は、市販のもの(ジョンソン・エンド・ジョンソン メディカル株式会社 品番80−9000チタン合金)を使用し片方は、本発明を実使用するために2本の腕に沿って常時互いに独立かつ絶縁された2本の潅流管を有する、双極電気凝固及び切開用ピンセットを用意して、潅流液源と双極電気凝固及び切開用ピンセットを接続するための輸液チューブ(コッドマン イリゲーションチュービングセット 品番80−1155)と適切な量の潅流液を供給するための潅流液制御装置(コッドマン マリス・イリゲーション モジュール 品番80−1169)を潅流チューブの中間に配設し、潅流液の流出を毎分20cc程度に制御して、連続使用可能平均時間、腕先端の双極電気凝固及び切開部拭き取り回数及びピンセット交換回数について以下の表に示す。
【0022】
【表2】
Figure 0003794772
【0023】
実際の顕微鏡下における実際の脳神経外科手術においても、ピンセット腕先端の双極電気凝固及び切開部に付着する焼き付き現象の防止効果を飛躍的に向上させ、凝固能及び切開能の低下を防止できることができたことで、本発明の有効性が確認された。
【0024】
【発明の効果】
以上説明したように、本発明のピンセットによれば潅流操作を行うことが可能となるため、出血部位の確認を可能にし高周波電流の通電による発熱から周辺組織の損傷を最小限に抑えられることができると共に、焼灼された組織部分がピンセットの双方の腕先端の双極電気凝固及び切開部に付着することによる凝固能及び切開能の低下を防止することができる。
【0025】
さらに、特にメニンジョーマ(髄膜腫)、脳血管奇形(AVM)の症例では、かなり連続して凝固操作を強いられるのであるが、市販されているバイポーラピンセットを使用すると30分程度の連続使用で焼灼組織が腕先端の双極電気凝固及び切開部に付着してしまうのに対し、本発明のピンセットを使用すると1時間以上の連続使用が可能となる。その結果、手術中にピンセット腕先端の双極電気凝固及び切開部に付着した炭化物をガーゼ等に擦り付けて剥ぎ落とす作業が減少するため、手術時間を大幅に短縮させることができる。
【図面の簡単な説明】
【図1】図1は本発明の−実施例に係わるピンセットの平面図。
【図2】図2は本発明の−実施例に係わるピンセットの片側の腕の内側表面を示した図。
【図3】図3は本発明の一実施例に係わるピンセットと各装置との接続配置図。
【符号の説明】
1 本体
2 腕
3 腕
2a 表面部
3a 表面部
4 グリップ部
5 グリップ部
6 電極
7 電極
8 ハウジング部
9 腕先端の双極電気凝固及び切開部
10 腕先端の双極電気凝固及び切開部
11 溝
12 溝
13 潅流管
14 潅流管
15 潅流接続口
16 潅流接続口
17 接着剤
18a 潅流液源
18b 潅流液源
19a 輸液チユーブ
19b 輸液チユーブ
20 潅流液制御装置
21 バイポーラコード
22 高周波発生装置[0001]
[Industrial application fields]
The present invention relates to a bipolar electrocoagulation and incision tweezer device comprising bipolar electrocoagulation and incision tweezers and a perfusate source used for hemostasis and incision operations in surgery, mainly neurosurgical operations .
[0002]
[Prior art]
Conventionally, in surgery, particularly neurosurgery, bipolar electrodes connected to a high-frequency generator are provided, insulated from each other, and the bipolar electrocoagulation and incision at the tip of the arm are normally energized to maintain an open state. Bipolar electric tweezers having two arms formed with an insulating film except for bipolar electrocoagulation and incision at the arm tip are used. Bipolar electrocoagulation and incision at the arm tip of tweezers is used to A living tissue or blood vessel can be coagulated or incised by sandwiching and applying a high-frequency current.
[0003]
A perfusion tube is disposed inside one of the arms of the tweezers, so that physiological saline or other liquid flows out and coagulates by high-frequency energization and reduces the heat generation temperature during incision operation. Injury can be minimized, and the cauterized tissue part prevents bipolar electrocoagulation at the tip of the tweezers arm and adhesion to the incision, thereby preventing a reduction in coagulation ability and incision ability.
[0004]
However, in the conventional tweezers having such a structure, the perfusion tube is disposed only on one inner side of the arm. Therefore, when the body tissue is pinched and the coagulation / incision operation is performed, the arm tip of one arm of the tweezers is Since bipolar electrocoagulation and incision are not affected by perfusate, sufficiently prevent the cauterization ability and incision ability from being reduced due to the cauterized tissue portion adhering to the bipolar electrocoagulation and incision at the arm tip of the tweezers It was difficult.
[0005]
Recently, bipolar electric tweezers (Japanese Patent Publication No. 3-31460) have been proposed in which a perfusion tube made of a single flexible tube is bifurcated in the middle part of the arm of the tweezers, and the liquid itself flows out from both ends of the tweezers. Is shown to do.
[0006]
However, with the above-described configuration, when coagulation and incision operations are performed on the living tissue, a high-frequency current is applied to the bipolar electrocoagulation and incision at the tip of the tweezers arm, and at the same time, the perfusate from both arms of the tweezer Although it flows out, there is only one fluid source for the perfusion line, and mainly the perfusion fluid uses physiological saline and so on. Unstable high-frequency current was not desirable for bipolar electrocoagulation and coagulation / incision operation at the incision.
[0007]
[Problems to be solved by the invention]
In the tweezers for bipolar electrocoagulation and incision, the present invention suppresses the seizure phenomenon that the biological tissue heated by energizing the high frequency current adheres to the bipolar electrocoagulation of the tweezer arm and the incision portion, and prevents the coagulation ability and incision ability from being lowered With the goal.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a bipolar electrocoagulation and incision tweezer in which two independent and perfusion tubes inside each arm are embedded and disposed in or close to the housing. The two infusion lines connected to the two perfusate sources are connected to each other. Bipolar electrocoagulation at the tip of each arm and the perfusate are supplied to the incision so that a part of the living tissue or blood vessel can be tweezers. Thus, the effect of preventing the bipolar electrocoagulation and the image sticking phenomenon adhering to the incised portion can be remarkably improved, and the deterioration of the coagulating ability and the incising ability can be prevented.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0010]
FIG. 1 is a plan view of a bipolar electrocoagulation and incision tweezer 1 according to an embodiment of the present invention. FIG. 2 shows an inner surface view of the arm on one side. The arms 2 and 3 have bipolar electrocoagulation and incisions 9 and 10 and grips 4 and 5 at the tips of the arms, respectively. Each arm 2, 3 is coated with an electrical insulator on the surface portions 2a, 3a except for bipolar electrocoagulation and incision at the tip of the arm to form an insulating film on the tweezers body. Connected to the electrodes 6 and 7 and insulated from each other in the housing portion 8, the bipolar electrocoagulation at the tip of the arm and the incision portion are normally urged to be kept open and fixed with an adhesive of an electrical insulator. ing.
[0011]
Grooves 11 and 12 are provided on the inner surfaces of the arms 2 and 3 from the vicinity of the bipolar electrocoagulation and incisions 9 and 10 at the tip of the arms to the grips 4 and 5, respectively, along the grooves 11 and 12. Insulated two perfusion tubes 13 and 14 are all embedded, and the rear ends of the perfusion tubes 13 and 14 are independent of the housing part 8 respectively, and two insulated perfusate connection ports 15 and 16 are insulated. And fixed with an adhesive 17 in the housing portion 8. Also, the bipolar electrocoagulation and incision at the tip of the arm is made of a stainless steel or titanium steel tube having a tapered surface having a small diameter on the same axis, so that each arm 2 and 3 is connected to the bipolar electrocoagulation and incision at the arm tip. It is possible to embed the perfusion tubes 13 and 14 in the groove 11 on the inner surface that becomes narrower for a while.
[0012]
Since the surgeon's visual field is mainly secured from between both arms of bipolar electrocoagulation and incision tweezers, there is a concern that the perfusion tubes 13 and 14 may obstruct the visual field of the surgeon when the tweezers are held. The perfusion tube that obstructs the visual field is disposed in the groove 11 inside both arms, thereby preventing the bipolar electrocoagulation at the tip of the arm and the incision portions 9 and 10 from becoming difficult to see. It is also possible to pinch the position accurately.
[0013]
In addition, it is necessary to make the perfusate liquid sources two by separating the two perfusion tubes 13 and 14, but it is possible to use liquids with different components by having two perfusion fluid sources. For example, by using physiological saline as a liquid source on one side and artificial cerebrospinal fluid (5% aqueous solution of mannitol) on the other side, effective high-frequency current conduction preferable for more stable coagulation / incision can be performed. Therefore, it is possible to perform effective high-frequency current conduction preferable for coagulation / incision.
[0014]
With such a structure, it is possible to reliably feed the perfusate to the bipolar electrocoagulation and incision at the arm tip of each arm of the bipolar electrocoagulation and incision tweezers, so that a part of the living tissue or blood vessel is The effect of preventing the bipolar electrocoagulation at the tip of the tweezer arm and the seizure phenomenon attached to the incision can be dramatically improved, and the coagulation ability and the incision ability can be prevented from being lowered.
[0015]
An example of using the tweezers according to one embodiment of the present invention with each device will be described with reference to a connection layout diagram of FIG. The bipolar tweezers 1 is configured so that a high frequency current generated by the high frequency generator 22 can be transmitted by a bipolar cord 21. A perfusate such as physiological saline is sent from each independent perfusate source indicated by 18a and 18b to the perfusate control device 20 through the infusion tubes 19a and 19b. Is connected to flow to the perfusion tube.
[0016]
In order to measure the effect of the present invention, a test was performed according to the following procedure.
[0017]
[Test 1]
Therefore, as a seizure evaluation method, a bipolar cord (Codman, product number 30-1536) is used from a high-frequency generator (Codman Maris / bipolar coagulation / cutting device CMC-II), and commercially available bipolar electric tweezers (Codman product number). 80-1552), Johnson & Johnson Medical Co., Ltd. product number 80-9000 titanium alloy) and bipolar electric tweezers according to one embodiment of the present invention are connected, and the output of the high frequency generator is set to 60 in the coagulation mode. The pig liver was energized at one place for 5 seconds, the number of times that the energization was possible was measured, and the bipolar electrocoagulation at the tip of the tweezers arm and the seizure state of the incision were observed.
[0018]
The measurement results of Test 1 are shown in the following table.
[0019]
[Table 1]
Figure 0003794772
[0020]
The comparison between the bipolar electric tweezers of the present invention and the commercially available bipolar electric tweezers is effective in preventing burn-in as a result of being used for the liver tissue of a pig, which is a living tissue, as can be seen from the results of continuous energization measurement under living conditions. It was confirmed.
[0021]
[Example 1]
In actual neurosurgery, the prior art bipolar electrocoagulation and incision tweezers were compared with the bipolar electrocoagulation and incision tweezers according to the embodiment of the present invention. Two tweezers for bipolar electrocoagulation and incision are prepared. One of them is a commercially available product (Johnson & Johnson Medical Co., Ltd., part number 80-9000 titanium alloy), and one is used for practical use of the present invention. Bipolar electrocoagulation and incision tweezers having two perfusion tubes that are always independent and insulated from each other along the arms, and infusion for connecting the perfusion fluid source to the bipolar electrocoagulation and incision tweezers A perfusate control device (Codman Maris Irrigation Module No. 80-1169) for supplying an appropriate amount of perfusate and a tube (Codman Irrigation Tubing Set No. 80-1155) is arranged in the middle of the perfusion tube. Spillage is controlled at around 20cc / min, average continuous use time, bipolar electrocoagulation and incision of the arm tip The following table shows the number of times of partial wiping and the number of tweezers exchange.
[0022]
[Table 2]
Figure 0003794772
[0023]
Even in actual neurosurgery under an actual microscope, the effect of preventing the bipolar electrocoagulation at the tip of the tweezers arm and the seizure phenomenon adhering to the incision can be dramatically improved, and the decrease in coagulation ability and incision ability can be prevented. Thus, the effectiveness of the present invention was confirmed.
[0024]
【The invention's effect】
As described above, according to the tweezers of the present invention, it is possible to perform a perfusion operation, so that it is possible to check a bleeding site and to minimize damage to surrounding tissues from fever caused by energization of a high-frequency current. In addition, it is possible to prevent the cauterizing ability and the incision ability from being deteriorated due to the cauterized tissue portion adhering to the bipolar electrocoagulation and the incision portion of both arm tips of tweezers.
[0025]
Furthermore, especially in the case of meningiomas (meningiomas) and cerebrovascular malformations (AVM), the coagulation operation is forced to be continued fairly continuously. While tissue adheres to the bipolar electrocoagulation and incision at the tip of the arm, the tweezers of the present invention can be used continuously for over 1 hour. As a result, the operation of bipolar electrocoagulation at the tip of the tweezers arm and the scraping of the carbide adhering to the incised portion during the operation with gauze or the like is reduced, and the operation time can be greatly shortened.
[Brief description of the drawings]
FIG. 1 is a plan view of tweezers according to an embodiment of the present invention.
FIG. 2 is a view showing an inner surface of one arm of a tweezers according to an embodiment of the present invention.
FIG. 3 is a connection layout diagram of tweezers and devices according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Arm 3 Arm 2a Surface part 3a Surface part 4 Grip part 5 Grip part 6 Electrode 7 Electrode 8 Housing part 9 Bipolar electrocoagulation and incision part 10 of arm tip Bipolar electrocoagulation and incision part 11 of arm tip Groove 12 Groove 13 Perfusion tube 14 Perfusion tube 15 Perfusion connection port 16 Perfusion connection port 17 Adhesive 18a Perfusion fluid source 18b Perfusion fluid source 19a Infusion tube 19b Infusion tube 20 Perfusion fluid control device 21 Bipolar cord 22 High frequency generator

Claims (2)

高周波発生電源装置に接続する互いに絶縁された双極の電極を備え、腕先端の双極電気凝固及び切開部は常態時は開放状態を維持するよう付勢された2本の腕を有し、これらに沿って常時互いに独立かつ電気的に絶縁された2本の潅流管を有する、双極電気凝固及び切開用ピンセットと
互いに独立かつ絶縁された2本の潅流管のそれぞれに接続されて、これらの潅流管に潅流液を供給するための2つの潅流液源と
を具備することを特徴とする双極電気凝固及び切開用ピンセット装置。
Bipolar electrodes isolated from each other connected to a high-frequency generating power supply device, and bipolar electrocoagulation at the tip of the arm and the incision have two arms that are normally biased to maintain an open state. Bipolar electrocoagulation and incision tweezers having two perfusion tubes that are always independent and electrically insulated along each other ;
Two perfusate sources connected to each of two independent and insulated perfusion tubes to supply perfusate to these perfusion tubes;
A tweezer device for bipolar electrocoagulation and incision, comprising:
互いに独立かつ絶縁された2本の潅流管を、双極の電極と高周波発生電源装置を接続するハウジング内でまたは近接して、潅流液源に接続する構造を有する、請求項1の双極電気凝固及び切開用ピンセット装置2. The bipolar electrocoagulation of claim 1 having a structure in which two perfusion tubes that are independent and insulated from each other are connected to a perfusion fluid source in or close to a housing that connects the bipolar electrode and the high frequency generating power supply. dissecting tweezers.
JP32583796A 1996-11-22 1996-11-22 Bipolar electrocoagulation and incision tweezers Expired - Lifetime JP3794772B2 (en)

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JP4740191B2 (en) * 2007-05-21 2011-08-03 株式会社東芝 Surgical device
JP5379652B2 (en) * 2009-11-05 2013-12-25 瑞穂医科工業株式会社 Bipolar insulator with cooling mechanism
CN108498167A (en) * 2018-06-28 2018-09-07 南昌元合泽众科技有限公司 A kind of Bipolar electrocautery blood coagulation tweezer that controllably drips
CN111643181B (en) * 2020-05-13 2024-06-25 复旦大学附属中山医院厦门医院 Double eyelid operation instrument
CN114587571B (en) * 2022-03-23 2024-03-26 首都医科大学附属北京天坛医院 Bipolar electrocoagulation device for stereotactic surgery

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