JPH0120619B2 - - Google Patents
Info
- Publication number
- JPH0120619B2 JPH0120619B2 JP55161242A JP16124280A JPH0120619B2 JP H0120619 B2 JPH0120619 B2 JP H0120619B2 JP 55161242 A JP55161242 A JP 55161242A JP 16124280 A JP16124280 A JP 16124280A JP H0120619 B2 JPH0120619 B2 JP H0120619B2
- Authority
- JP
- Japan
- Prior art keywords
- tissue
- surgical
- microwave
- coagulation
- electrode
- 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.)
- Expired
Links
- 230000015271 coagulation Effects 0.000 claims description 13
- 238000005345 coagulation Methods 0.000 claims description 13
- 230000023597 hemostasis Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000001519 tissue Anatomy 0.000 description 29
- 238000001356 surgical procedure Methods 0.000 description 15
- 238000002271 resection Methods 0.000 description 7
- 210000004185 liver Anatomy 0.000 description 6
- 210000000952 spleen Anatomy 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 5
- 208000032843 Hemorrhage Diseases 0.000 description 4
- 208000034158 bleeding Diseases 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 230000002980 postoperative effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010911 splenectomy Methods 0.000 description 3
- 208000035346 Margins of Excision Diseases 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 206010051077 Post procedural haemorrhage Diseases 0.000 description 2
- 210000000941 bile Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000003228 intrahepatic bile duct Anatomy 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 210000001672 ovary Anatomy 0.000 description 2
- 210000002966 serum Anatomy 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010067125 Liver injury Diseases 0.000 description 1
- 206010040047 Sepsis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 231100000234 hepatic damage Toxicity 0.000 description 1
- 210000003494 hepatocyte Anatomy 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 230000008818 liver damage Effects 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 210000004738 parenchymal cell Anatomy 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003393 splenic effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Description
【発明の詳細な説明】
この発明は、マイクロ波の生体との反応により
生ずる熱エネルギにより、凝固、止血、切除等の
手術を行なうことができるようにした手術装置に
関し、たとえば、含有血液の多い実質臓器、特に
肝臓の手術に応用し、従来不可能とされていた肝
ガンの手術も容易、安全かつ無血的に行なうこと
ができるようにしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surgical device that can perform surgeries such as coagulation, hemostasis, and resection using thermal energy generated by the reaction of microwaves with living organisms. It has been applied to surgery on real organs, especially the liver, and has enabled surgery for liver cancer, which was previously considered impossible, to be performed easily, safely, and bloodlessly.
従来、手術装置として、電気手術器（電気メ
ス）がある。これは、周波数0.3〜10MHz、波長
1000〜30ｍ、出力200〜500Wで、メス型、ピンセ
ツト型の高周波手術電極と、対電極とを用い、患
者の他の身体部位に対電極を装着し、手術電極か
ら対電極に高周波電流を流し、止血、凝固を、高
周波の火花放電により組織を焼灼して行なうもの
であるため、往々にして火傷を生ずる危険があ
り、かつ、組織が炭化変性し、これが時間の経過
によつて脱落し、再出血を起こし、非常に危険で
あり、さらに、血液含有量のきわめて多い実質臓
器の手術には不適当であり、しかも臨床実施上患
者に種々の傷害と感電の危険を伴なう。また、切
除断端の術後出血および術後胆汁漏出がある。 Conventionally, as a surgical device, there is an electrosurgical device (electrocautery). This is frequency 0.3~10MHz, wavelength
At 1000 to 30 m, with an output of 200 to 500 W, a female or forceps type high frequency surgical electrode and a counter electrode are used, the counter electrode is attached to another body part of the patient, and a high frequency current is passed from the surgical electrode to the counter electrode. , hemostasis and coagulation are achieved by cauterizing tissue using high-frequency spark discharge, which often poses a risk of causing burns, and the tissue becomes carbonized and sloughs off over time. This method causes rebleeding, which is very dangerous, and is not suitable for surgery on solid organs with extremely high blood content, and in clinical practice, it involves the risk of various injuries and electric shock to the patient. There is also postoperative bleeding at the resection margin and postoperative bile leakage.
つぎに、レーザー手術器（レーザーメス）は、
波長10.6μm、出力50〜100Wで、集光レンズ系の
ハンドピースを用いるものであり、実際の手術に
当つては、レーザー光線の焦点を一々合わせねば
ならないという不便があり、照射時間の設定いか
んによつては強力すぎて他の組織をも簡単に破壊
してしまう。またレーザー光線を伝達するための
アームのアングルの少しの狂いが、光軸の方向を
あやまらせ、思わぬ方向にビームが照射される。
しかもこのアームの可動範囲には、レーザー光軸
の関係から一定の制限がある。 Next, the laser surgical instrument (laser scalpel) is
It has a wavelength of 10.6 μm and an output of 50 to 100 W, and uses a handpiece with a condensing lens system. During actual surgery, the laser beam has to be focused one by one, which is inconvenient, and the setting of the irradiation time is difficult. It is so powerful that it can easily destroy other organizations. Furthermore, a slight deviation in the angle of the arm used to transmit the laser beam can cause the direction of the optical axis to be incorrect, causing the beam to be irradiated in unexpected directions.
Furthermore, the range of movement of this arm is limited to a certain extent due to the laser optical axis.
また、レーザー手術器は、止血、凝固にレーザ
ー光線による熱エネルギーを利用しているので、
組織は炭化変性しないが、止血可能血管最高直径
が、1.5mmと小さいため、血管が1.5mm以上の場合
は、予め血管をけつさくのうえ切断せねばならぬ
という不便があり、緊急を要する場合には不向で
ある。また、肝内胆管の凝固閉鎖可能径も1.0mm
で小さい。 Additionally, laser surgical instruments use thermal energy from laser beams to stop bleeding and coagulate.
Although the tissue does not undergo charring, the maximum diameter of blood vessels that can stop bleeding is as small as 1.5 mm, so if the blood vessels are larger than 1.5 mm, there is an inconvenience in that the blood vessels must be cut and cut in advance, and in case of emergency. It is not suitable for In addition, the diameter of the intrahepatic bile duct that can be closed by coagulation is 1.0 mm.
So small.
さらに、血清GOT，GPT，Al―ｐの術後変化
も、第３病日後に急激に減少し、１週間後に回復
するもので、きわめて遅い。かつ、装置が大型
で、価格も数千万円に達し、きわめて高価であ
る。 Furthermore, postoperative changes in serum GOT, GPT, and Al-p rapidly decrease after the third day of illness and recover after one week, which is extremely slow. Moreover, the device is large and the price reaches tens of millions of yen, making it extremely expensive.
この発明は、前記の点に留意してなされたもの
であり、つぎにこの発明をその１実施例を示した
図面とともに、詳細に説明する。 This invention has been made with the above points in mind, and will now be described in detail with reference to drawings showing one embodiment thereof.
図面において、１は主として強化絶縁トランス
を使用した安全装置であり、商用電源が入力され
る。２は安全装置１に接続され自動電圧安定器を
含む電源装置、３は電源装置２に接続されたマイ
クロ波発生装置であり、マグネトロンの陽極に高
電圧を印加し、2450MHzのマイクロ波を出力し、
最大出力150Wである。４は疾患別適用出力時間
選択限定装置であり、疾患臓器、疾患の状況、組
織の大きさ状態、手術部位、凝固、止血、切除の
別などによつて決まるマイクロ波の出力、照射時
間を設定し、マイクロ波発生装置３の出力および
発振時間（通常60秒以内）を限定制御し、過剰照
射による手術ミスを予防し、安全かつ確実に行な
うためのものである。５はマイクロ波出力微調整
器であり、マイクロ波発生装置３の出力を微調整
するためのものである。６はマイクロ波発生装置
３に接続されたマイクロ波出力インピーダンス整
合装置、７は同軸ケーブル８によりインピーダン
ス整合装置６に接続された手術電極ハンドピー
ス、９はハンドピース７に装着され整合装置６に
同軸ケーブル８を介して接続された組織直接刺入
型の止血、凝固用針状モノポーラ手術電極であ
り、たとえば直径0.5mm、長さ3.9〜31.5mmの針状
のモノポーラアンテナである。１０はハンドピー
ス７に取り付けられたハンドスイツチであり、指
先で強く握るとオン、握る力をゆるめるとオフ
し、手術時に操作される。１１はハンドスイツチ
１０と電源装置２の高圧トランスの１次側との間
に直列に接続された緊急時に用いる安全用の常閉
のフツトスイツチであり、緊急時足でふむとオフ
し、ハンドスイツチ１０のオンによりマイクロ波
が発振され、ハンドスイツチ１０またはフツトス
イツチ１１のオフにより高圧がしや断され、マイ
クロ波の照射が停止する。１２は組織解離電流発
生器、１３は該発生器１２のプラス端子に接続さ
れ手術部位の近くの組織に接触された不関電極で
あり、前記発生器１２のマイナス端子がハンドピ
ース７の手術電極９に接続されている。 In the drawings, 1 is a safety device mainly using a reinforced insulation transformer, to which commercial power is input. 2 is a power supply device connected to the safety device 1 and includes an automatic voltage stabilizer, and 3 is a microwave generator connected to the power supply device 2, which applies a high voltage to the anode of the magnetron and outputs 2450MHz microwaves. ,
The maximum output is 150W. 4 is a disease-specific applicable output time selection limiting device, which sets the microwave output and irradiation time determined by diseased organs, disease conditions, tissue size, surgical site, coagulation, hemostasis, resection, etc. However, the output and oscillation time (usually within 60 seconds) of the microwave generator 3 are limitedly controlled to prevent surgical errors due to excessive irradiation and to perform the surgery safely and reliably. Reference numeral 5 denotes a microwave output fine adjuster, which is used to finely adjust the output of the microwave generator 3. 6 is a microwave output impedance matching device connected to the microwave generator 3; 7 is a surgical electrode handpiece connected to the impedance matching device 6 via a coaxial cable 8; 9 is a surgical electrode handpiece attached to the handpiece 7 and coaxial with the matching device 6; This is a needle-shaped monopolar surgical electrode for hemostasis and coagulation that is directly inserted into tissue and connected via a cable 8, and is, for example, a needle-shaped monopolar antenna with a diameter of 0.5 mm and a length of 3.9 to 31.5 mm. Reference numeral 10 denotes a hand switch attached to the handpiece 7, which is turned on when gripped firmly with the fingertips and turned off when the grip is loosened, and is operated during surgery. 11 is a normally closed safety foot switch connected in series between the hand switch 10 and the primary side of the high voltage transformer of the power supply device 2, and is used in an emergency. When the switch is turned on, microwaves are oscillated, and when the hand switch 10 or the foot switch 11 is turned off, the high pressure is immediately cut off and the microwave irradiation is stopped. 12 is a tissue dissociation current generator; 13 is an indifferent electrode connected to the positive terminal of the generator 12 and brought into contact with the tissue near the surgical site; the negative terminal of the generator 12 is connected to the surgical electrode of the hand piece 7; Connected to 9.
そして、前記安全装置１は、マイクロ波発生装
置３に供給される高電圧や、マイクロ波発生装置
３からの高周波電流の術者への電気的危険を予防
し、また、電源装置２は、マイクロ波発生装置３
を安定に動作させるための整流電源で、入力商用
交流電源の変動による手術実施中のマイクロ波出
力の急変動を抑圧する。 The safety device 1 prevents electrical danger to the operator from the high voltage supplied to the microwave generator 3 and the high frequency current from the microwave generator 3, and the power supply device 2 Wave generator 3
This is a rectified power supply for stable operation, and suppresses sudden fluctuations in the microwave output during surgery due to fluctuations in the input commercial AC power supply.
そして、マイクロ波発生装置３で発生されたマ
イクロ波は、マイクロ波出力インピーダンス整合
装置６および同軸ケーブル８を経て手術電極９に
伝達され、被手術組織内に、または被手術組織面
に照射され、そのとき発生する熱によつて組織の
切除、凝固、止血等が行われ、かつ、ハンドピー
ス７のハンドスイツチ１０のオン、オフにより、
マイクロ波出力の照射の開始と停止を容易に行な
うことができる。 The microwave generated by the microwave generator 3 is transmitted to the surgical electrode 9 via the microwave output impedance matching device 6 and the coaxial cable 8, and is irradiated into the surgical tissue or onto the surgical tissue surface. The heat generated at that time performs tissue resection, coagulation, hemostasis, etc., and by turning on and off the hand switch 10 of the handpiece 7,
Irradiation of microwave power can be easily started and stopped.
さらに、前記組織解離電流発生器１２は、手術
電極９を手術のため組織に刺入して手術を行なつ
た後、手術電極９を該組織より引き抜く場合は、
組織が手術電極９に付着するのを防止するもので
あり、手術終了時に極短時間（60秒位）、該組織
に手術電極９を通して陰極直流電流（数mA）を
通電し、組織と手術電極９間の電気分解による水
分により、手術電極９への組織の付着を防止す
る。 Furthermore, when the surgical electrode 9 is inserted into tissue for surgery and the surgical electrode 9 is pulled out from the tissue, the tissue dissociation current generator 12 is configured to:
This prevents tissue from adhering to the surgical electrode 9. At the end of the surgery, cathodic direct current (several mA) is applied to the tissue through the surgical electrode 9 for a very short period of time (about 60 seconds), and the tissue and surgical electrode are Moisture generated by electrolysis between the electrodes 9 prevents tissue from adhering to the surgical electrodes 9.
そして、この発明の装置において、マイクロ波
エネルギーは、被手術組織に集中し、モノポール
手術電極９の軸の中心より15mm以上はなれた組織
にはマイクロ波による影響は全くない。また、対
電極が不要であるので、患者の他の身体部にはマ
イクロ波電流が流れなく、他のいかなる組織をも
損傷しない。 In the apparatus of the present invention, the microwave energy is concentrated on the tissue to be operated on, and tissues located 15 mm or more away from the center of the axis of the monopole surgical electrode 9 are not affected by the microwaves at all. Also, since no counter electrode is required, the microwave current does not flow to other parts of the patient's body and will not damage any other tissue.
以上のように、この発明の手術装置によると、
マイクロ波を出力するマイクロ波発生装置と、該
発生装置に接続されたマイクロ波出力インピーダ
ンス整合装置と、該整合装置に同軸ケーブルによ
り接続された組織直接刺入型の止血、凝固用針状
モノポーラ手術電極とを備えたことにより、モノ
ポーラ手術電極からマイクロ波を生体組織に照射
し、マイクロ波の生体との反応により生ずる熱エ
ネルギにより、凝固、止血、切除等の手術を行な
うことができ、たとえば周波数2450MHz、波長12
cm、出力30〜100Wで、電気手術器のような対電
極が不要であり、小型かつ、数十万円で安価であ
り、操作もきわめて簡単である。 As described above, according to the surgical device of the present invention,
A microwave generator that outputs microwaves, a microwave output impedance matching device connected to the generator, and a needle-like monopolar surgery for direct tissue insertion for hemostasis and coagulation connected to the matching device by a coaxial cable. By equipping the living tissue with a monopolar surgical electrode, microwaves can be applied to living tissue, and the heat energy generated by the reaction of the microwaves with the living body can be used to perform surgeries such as coagulation, hemostasis, and resection. 2450MHz, wavelength 12
cm, output of 30 to 100 W, does not require a counter electrode like an electrosurgical device, is small and inexpensive at several hundred thousand yen, and is extremely easy to operate.
そして、この発明は、肝臓手術のみならず、実
質臓器である脳、肺、脾、腎、卵巣等の手術、お
よび実質性腫瘍の凝固・切除（部分切除）にも利
用でき、内視鏡的止血にも応用でき、現在までの
手術不能例に対しても手術適応性の拡大が期待さ
れる。 This invention can be used not only for liver surgery, but also for surgery on parenchymal organs such as the brain, lungs, spleen, kidneys, and ovaries, as well as coagulation and resection (partial resection) of parenchymal tumors. It can also be applied to hemostasis, and is expected to expand the applicability of surgery to cases that are currently inoperable.
たとえば、止血可能最大血管径は動、静脈とも
３mm、肝内胆管凝固閉鎖可能径は３mm、肝切除断
端について術后出血および術后胆汁漏出はともに
皆無であり、さらに、凝固壊死組織の残存期間は
約３〜６ケ月できわめて長く、これは本発明の特
有の効果の１つである。すなわち、従来の電気手
術器のように火花放電による凝固ではないので、
組織が炭化変性しなく、炭化変性組織の脱落がな
く、止血がきわめて確実に行なえる。また、組織
内に発生するマイクロ波の熱により細菌類が死滅
するとともに、血流がないために感染も起こらな
い。 For example, the maximum blood vessel diameter that can stop bleeding is 3 mm for both arteries and veins, the diameter that can be closed by intrahepatic bile duct coagulation is 3 mm, there is no post-operative bleeding or post-operative bile leakage at the liver resection margin, and there is no residual coagulated necrotic tissue. The period is quite long, approximately 3-6 months, and this is one of the unique advantages of the present invention. In other words, unlike conventional electrosurgical instruments, coagulation is not caused by spark discharge.
The tissue does not undergo charring, the charred tissue does not fall off, and hemostasis can be achieved extremely reliably. In addition, bacteria are killed by the microwave heat generated within the tissue, and infection does not occur because there is no blood flow.
さらに、凝固血管引張応力減少率は、動脈18.6
％、静脈17.5％であり、残存肝細胞再生率（肝重
量）が30％肝切除の術后21日目で140％であり、
全身に対する影響も、体温の上昇がなく、組織破
壊に伴う不可逆的変化が認められなく、血清
GOT，GPT，Al―ｐの術后変化は、24時間後に
は回復に向い、以後肝障害の危惧は考えられず、
６か月後の観察においても特異な合併症および全
身影響が認められない。また、局所周辺の熱影響
についても組織に刺入した手術電極の軸の中心よ
り15mmまでの範囲で、100ワツト以下では関係が
ない。 In addition, the coagulation vessel tensile stress reduction rate is 18.6
%, venous 17.5%, and the residual hepatocyte regeneration rate (liver weight) was 140% on the 21st day after liver resection at 30%.
As for the effects on the whole body, there is no increase in body temperature, no irreversible changes due to tissue destruction, and serum
Postoperative changes in GOT, GPT, and Al-p showed signs of recovery after 24 hours, and there was no risk of liver damage after that.
No specific complications or systemic effects were observed during observation after 6 months. In addition, thermal effects around the local area are irrelevant within a range of up to 15 mm from the center of the axis of the surgical electrode inserted into the tissue and at a voltage of 100 watts or less.
つぎに応用例を示す。 Next, we will show an example of application.
臓 器 マイクロ波出力 適用時間
肝 臓 30〜60ワツト 30〜60秒
脾 臓 30〜60ワツト 30〜60秒
卵 巣 20〜50ワツト 20〜30秒
実質腫瘍 50ワツト 30〜60秒
また、前記の条件を基準として、組織の状態、
血管の大きさ等を考慮し、出力および時間を選定
する。Organ Microwave output Application time Liver 30-60 Watts 30-60 seconds Spleen 30-60 Watts 30-60 seconds Ovary 20-50 Watts 20-30 seconds Parenchymal tumor 50 Watts 30-60 seconds In addition, the above conditions The state of the organization based on
Select the output and time taking into account the size of the blood vessel, etc.
なお、成人においては、脾臓摘出による影響は
ほとんどないとされているが、現在では免疫学的
な観点よりその重要性が論ぜられるようになり、
脾臓の温存に努める必要が叫ばれ、特に小児にお
いては、脾臓摘出後に敗血症の発生頻度が高く、
脾臓の温存が必要である。また、脾外傷時には脾
摘を行なうことが多いが、このような場合は、本
装置の利用による止血あるいは部分切除により、
脾臓を温存することが可能となる。 Although it is said that splenectomy has almost no effect on adults, its importance is now being discussed from an immunological perspective.
It is important to strive to preserve the spleen, and sepsis occurs frequently after splenectomy, especially in children.
Spleen preservation is necessary. In addition, splenectomy is often performed in cases of splenic trauma, and in such cases, this device can be used to stop the bleeding or to partially remove the spleen.
It becomes possible to preserve the spleen.
図面は、この発明の手術装置の１実施例のブロ
ツク図である。
２…電源装置、３…マイクロ波発生装置、６…
インピーダンス整合装置、７…ハンドピース、８
…同軸ケーブル、９…手術電極、１０…ハンドス
イツチ。
The drawing is a block diagram of one embodiment of the surgical device of the present invention. 2...Power supply device, 3...Microwave generator, 6...
Impedance matching device, 7...handpiece, 8
…Coaxial cable, 9…Surgical electrode, 10…Hand switch.
Claims (1)
と、該発生装置に接続されたマイクロ波出力イン
ピーダンス整合装置と、該整合装置に同軸ケーブ
ルにより接続された組織直接刺入型の止血、凝固
用針状モノポーラ手術電極とを備えたことを特徴
とする手術装置。1. A microwave generator that outputs microwaves, a microwave output impedance matching device connected to the generator, and a needle-like monopolar needle for direct tissue insertion for hemostasis and coagulation connected to the matching device by a coaxial cable. A surgical device comprising a surgical electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55161242A JPS5784046A (en) | 1980-11-14 | 1980-11-14 | Operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55161242A JPS5784046A (en) | 1980-11-14 | 1980-11-14 | Operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5784046A JPS5784046A (en) | 1982-05-26 |
| JPH0120619B2 true JPH0120619B2 (en) | 1989-04-18 |
Family
ID=15731344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55161242A Granted JPS5784046A (en) | 1980-11-14 | 1980-11-14 | Operation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5784046A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008117789A1 (en) | 2007-03-27 | 2008-10-02 | National University Corporation Shiga University Of Medical Science | Microwave surgical device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4534347A (en) * | 1983-04-08 | 1985-08-13 | Research Corporation | Microwave coagulating scalpel |
| JPS6052818U (en) * | 1983-09-20 | 1985-04-13 | 銭谷 利男 | Ophthalmology microwave surgical instrument |
| JPS6284408U (en) * | 1985-11-18 | 1987-05-29 | ||
| GB0502384D0 (en) * | 2005-02-04 | 2005-03-16 | Instrumedical Ltd | Electro-surgical needle apparatus |
-
1980
- 1980-11-14 JP JP55161242A patent/JPS5784046A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008117789A1 (en) | 2007-03-27 | 2008-10-02 | National University Corporation Shiga University Of Medical Science | Microwave surgical device |
| JP2008237627A (en) * | 2007-03-27 | 2008-10-09 | Shiga Univ Of Medical Science | Microwave surgical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5784046A (en) | 1982-05-26 |
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