JPS6361021B2 - - Google Patents
Info
- Publication number
- JPS6361021B2 JPS6361021B2 JP58174500A JP17450083A JPS6361021B2 JP S6361021 B2 JPS6361021 B2 JP S6361021B2 JP 58174500 A JP58174500 A JP 58174500A JP 17450083 A JP17450083 A JP 17450083A JP S6361021 B2 JPS6361021 B2 JP S6361021B2
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- tissue
- insulator
- conductor
- electric field
- 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
- 239000004020 conductor Substances 0.000 claims description 25
- 239000012212 insulator Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 description 12
- 238000001356 surgical procedure Methods 0.000 description 10
- 230000000740 bleeding effect Effects 0.000 description 7
- 230000023597 hemostasis Effects 0.000 description 5
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Radiation-Therapy Devices (AREA)
- Surgical Instruments (AREA)
Description
【発明の詳細な説明】
この発明は、マイクロ波による生体組織の凝
固、止血等を利用したマイクロ波手術器に関し、
生体組織の切開を無血的に行なうことを目的とす
る。[Detailed Description of the Invention] The present invention relates to a microwave surgical instrument that uses microwaves to coagulate biological tissue, stop bleeding, etc.
The purpose is to incise living tissue in a bloodless manner.
通常、手術において、生体組織の切開に伴なう
出血は、手術部位を血液で汚染し、手術を行なう
術者の視野を悪くするため、適切かつ正確な手術
の遂行を妨げる危険がある。 BACKGROUND OF THE INVENTION Normally, during surgery, bleeding that accompanies the incision of living tissue contaminates the surgical site with blood and impairs the visual field of the operator, which poses a risk of hindering the proper and accurate performance of the surgery.
このため、組織の切開と止血とが同時に行なえ
るようにすることは、あらゆる手術において切望
される点である。 Therefore, it is highly desirable in all surgeries to be able to simultaneously incise tissue and stop bleeding.
この発明は、前記の点に留意してなされたもの
であり、マイクロ波伝送用内部導体の外側に絶縁
体を介して接地電極を設け、前記内部導体にマイ
クロ波照射用中心電極を構成する生体組織の切開
用手術刃を接続したことを特徴とするマイクロ波
手術器を提供するものである。 This invention has been made with the above-mentioned points in mind, and includes providing a ground electrode on the outside of an internal conductor for microwave transmission via an insulator, and forming a central electrode for microwave irradiation on the internal conductor. The present invention provides a microwave surgical instrument characterized in that a surgical blade for incising tissue is connected.
したがつて、この発明のマイクロ波手術器によ
ると、内部導体を通して手術刃よりマイクロ波を
照射することにより、手術刃と接地電極との間に
強力なマイクロ波電界を形成することができ、こ
の電界内に位置する生体組織をマイクロ波電界に
より組織に生じる誘電熱により凝固、止血するこ
とができるため、手術刃の刃先により組織の切開
を容易かつ円滑に行なうことができるとともに、
切開による出血を手術刃の刃先付近に発生された
マイクロ波電界による誘電熱により完全に止血す
ることができ、無血的組織切開手術を可能にし、
この種手術の適切かつ正確な遂行を実現するもの
である。 Therefore, according to the microwave surgical instrument of the present invention, by irradiating microwaves from the surgical blade through the internal conductor, a strong microwave electric field can be formed between the surgical blade and the ground electrode. Biological tissue located within an electric field can be coagulated and hemostasis by dielectric heat generated in the tissue by the microwave electric field, making it possible to easily and smoothly incise the tissue with the cutting edge of the surgical blade.
Bleeding caused by incision can be completely stopped by dielectric heat generated by the microwave electric field near the cutting edge of the surgical blade, making bloodless tissue incision surgery possible.
This ensures proper and accurate performance of this type of surgery.
つぎにこの発明を、その実施例を示した図面と
ともに詳細に説明する。 Next, the present invention will be explained in detail with reference to drawings showing embodiments thereof.
まず、１実施例を示した第１図ないし第３図に
ついて説明する。 First, FIGS. 1 to 3 showing one embodiment will be explained.
これらの図面において、１はマイクロ波発振部
（図示せず）の出力端に接続されるマイクロ波同
軸コネクター、２は同軸コネクター１に接続され
たマイクロ波伝送用の可撓性のマイクロ波同軸ケ
ーブル、３は同軸ケーブル２の先端に接続された
ほぼ筒状の手術器の握り部であり、同軸ケーブル
２との接続部には絶縁性の補強カバー４が設けら
れている。 In these drawings, 1 is a microwave coaxial connector connected to the output end of a microwave oscillator (not shown), and 2 is a flexible microwave coaxial cable for microwave transmission connected to the coaxial connector 1. , 3 is a substantially cylindrical grip portion of the surgical instrument connected to the tip of the coaxial cable 2, and an insulating reinforcing cover 4 is provided at the connection portion with the coaxial cable 2.
５は握り部３の中心部に設けられたマイクロ波
伝送用の管状の内部導体、６は内部導体５の外側
に設けられた超高周波絶縁体、７は絶縁体６の外
側に設けられ外部導体となる接地電極であり、内
部導体５と接地電極７とは絶縁体６により絶縁さ
れ、これが補強カバー４内において同軸ケーブル
２に接続されている。なお、内部導体６と接地電
極７とのそれぞれの先端面は絶縁体６により覆わ
れ、絶縁体６の先端開口が内部導体５内に連通さ
れている。８は接地電極７の外表面を被覆する外
被絶縁体である。 5 is a tubular internal conductor for microwave transmission provided in the center of the grip portion 3; 6 is an ultra-high frequency insulator provided outside the internal conductor 5; and 7 is an external conductor provided outside the insulator 6. The internal conductor 5 and the ground electrode 7 are insulated by an insulator 6, which is connected to the coaxial cable 2 within the reinforcing cover 4. Note that the end surfaces of each of the internal conductor 6 and the ground electrode 7 are covered with an insulator 6, and the opening at the end of the insulator 6 communicates with the inside of the internal conductor 5. Reference numeral 8 denotes an outer insulator that covers the outer surface of the ground electrode 7.
９はマイクロ波照射用中心電極の一部を構成す
る生体組織の切開用かみそり刃、１０は中心電極
を構成し先端部の１対の挾持部１１間でかみそり
刃９を保持するペン形状の金属製かみそりホルダ
ーであり、ホルダー１０の基部には、挾持部１１
に挾持力を与える１対のホルダー握り部１２が形
成され、この両握り部１２が内部導体５にほぼ等
しい長さに形成されている。この両握り部１２間
には該両握り部１２をそれぞれ外側方向へ付勢す
るばね（図示せず）が内装されており、両挾持部
１１間でかみそり刃９を挾持した状態で両握り部
１２をばねの反発力に抗して強く握り締めながら
該両握り部１２を内部導体５内に最深部まで挿入
することにより、かみそり刃９の挾持状態態で両
握り部１２がばね力により内部導体５の内面に圧
接され、かみそりホルダー１０およびかみそり刃
９が内部導体５に接続されてマイクロ波照射用中
心電極となる。 Reference numeral 9 denotes a razor blade for incising biological tissue, which constitutes a part of the center electrode for microwave irradiation; 10, a pen-shaped metal which constitutes the center electrode and holds the razor blade 9 between a pair of clamping parts 11 at the tip part; This is a razor holder made of aluminum, and the base of the holder 10 has a gripping part 11.
A pair of holder grip portions 12 are formed to provide a clamping force to the inner conductor 5, and both grip portions 12 are formed to have approximately the same length as the inner conductor 5. A spring (not shown) is installed between the two gripping parts 12 to urge the two gripping parts 12 outward. By inserting both grip parts 12 into the inner conductor 5 to the deepest part while firmly grasping the grip 12 against the repulsive force of the spring, both grip parts 12 are inserted into the inner conductor 5 due to the spring force while the razor blade 9 is being held. The razor holder 10 and the razor blade 9 are connected to the internal conductor 5 and serve as a center electrode for microwave irradiation.
そして、第２図に示すように、かみそり刃９を
挾持したかみそりホルダー１０を手術器の握り部
３に装着し、マイクロ波発振部より2450MHzのマ
イクロ波を出力すると、マイクロ波は同軸ケーブ
ル２を通して内部導体５およびかみそりホルダー
１０に供給され、中心電極となつたかみそりホル
ダー１０の挾持部１１およびかみそり刃９よりマ
イクロ波が照射され、当該中心電極と接地電極７
の先端部付近との間に強力なマイクロ波電界が形
成される。このため、このマイクロ波電界内に位
置する生体組織は、該マイクロ波電界により組織
に発生する誘電熱により蒸発されて凝固、止血さ
れる。 Then, as shown in FIG. 2, the razor holder 10 holding the razor blade 9 is attached to the grip part 3 of the surgical instrument, and when the microwave oscillator outputs a 2450MHz microwave, the microwave passes through the coaxial cable 2. Microwaves are supplied to the internal conductor 5 and the razor holder 10, and are irradiated from the clamping part 11 and the razor blade 9 of the razor holder 10, which have become the center electrode, and the center electrode and the ground electrode 7 are irradiated with microwaves.
A strong microwave electric field is formed between the tip and the vicinity of the tip. Therefore, the living tissue located within this microwave electric field is evaporated by dielectric heat generated in the tissue by the microwave electric field, thereby coagulating and stopping bleeding.
したがつて、マイクロ波照射を行ないながらか
みそり刃９の鋭利な刃先で組織の切開を行なう
と、この切開に伴なつて生じる出血が、かみそり
刃９の刃先付近の強力なマイクロ波電界による誘
電熱により完全に止血され、生体組織の切開と止
血とが同時に行なえることになり、無血的組織切
開手術が可能になるものであり、眼科用はもとよ
り他の手術に対しても、適切かつ正確な手術が行
なえるものである。 Therefore, when tissue is incised with the sharp edge of the razor blade 9 while irradiating microwaves, the bleeding that occurs due to the incision is caused by dielectric heat generated by the strong microwave electric field near the edge of the razor blade 9. This enables complete hemostasis, incision of living tissue and hemostasis at the same time, and enables bloodless tissue incision surgery, making it suitable and accurate not only for ophthalmology but also for other surgeries. Surgery can be performed.
つぎに、他の実施例を示した第４図以下の図面
について説明する。 Next, the drawings from FIG. 4 onwards showing other embodiments will be explained.
これらの図面において、１３は接地電極となる
接栓であり、小径の接続部１３ａが図示しないマ
イクロ波発振部に接続された手術用ハンドピース
の出力コネクターに接続される。１４は接栓１３
の芯部に設けられ内部導体となる円棒状の中心導
体、１５は中心導体１４の外側に設けられ該中心
導体１４と接栓１３とを絶縁する超高周波絶縁体
であり、該絶縁体１５の先端部が接栓１３の接地
電極面１３ｂより導出されるとともに、中心導体
１４の先端部が絶縁体１５の先端面より導出され
ている。 In these drawings, reference numeral 13 denotes a plug serving as a ground electrode, and a small diameter connecting portion 13a is connected to an output connector of a surgical handpiece connected to a microwave oscillating section (not shown). 14 is the plug 13
15 is an ultra-high frequency insulator provided outside the center conductor 14 to insulate the center conductor 14 and the plug 13; The tip portion of the center conductor 14 is drawn out from the ground electrode surface 13b of the plug 13, and the tip portion of the center conductor 14 is drawn out from the tip surface of the insulator 15.
１６は中心導体１４の先端部に一体に支持され
て接続されステンレス鋼等により構成されたマイ
クロ波照射用中心電極となる手術用メスであり、
メス１６の先端部に該メス１６の長手方向に対し
て鋭く傾斜された組織切開刃１６′が形成されて
いる。１７は接栓１３の接地電極面１３ｂに一体
に支持されメス１６の一側面、他側面および上側
面に沿つた針金製素線部１７ａ，１７ｂ，１７ｃ
により構成されたリフレクターであり、接地電位
に保持されている。このリフレクター１７の各素
線部１７ａ，１７ｂ，１７ｃはたとえばビニール
で被覆され、組織への接触による組織の付着が防
止されている。 16 is a surgical scalpel that is integrally supported and connected to the tip of the center conductor 14 and is made of stainless steel or the like and serves as a center electrode for microwave irradiation;
A tissue cutting blade 16' that is sharply inclined with respect to the longitudinal direction of the scalpel 16 is formed at the tip of the scalpel 16. Reference numeral 17 denotes wire strands 17a, 17b, and 17c that are integrally supported by the ground electrode surface 13b of the plug 13 and run along one side, the other side, and the upper side of the knife 16.
It is a reflector made up of , and is held at ground potential. Each of the strands 17a, 17b, and 17c of the reflector 17 is covered with, for example, vinyl to prevent tissue from adhering to the reflector 17 due to contact with the tissue.
そして、マイクロ波発振部より手術器にマイク
ロ波を供給し、中心導体１４を介して中心電極と
なるメス１６よりマイクロ波照射を行なうと、メ
ス１６のメス先と接地電位のリフレクター１７の
先端付近との間に強いマイクロ波電界が発生し、
該電界内の生体組織の止血、凝固が可能となる。 Then, when microwaves are supplied to the surgical instrument from the microwave oscillator and microwave irradiation is performed from the scalpel 16 which becomes the center electrode via the center conductor 14, the scalpel tip of the scalpel 16 and the tip of the reflector 17 at ground potential are exposed. A strong microwave electric field is generated between
Hemostasis and coagulation of living tissue within the electric field become possible.
したがつて、生体組織の切開時にマイクロ波照
射を行なうと、メス１６の切開刃１６′により組
織が容易かつ円滑に切開されるとともに、この切
開に伴なう出血がメス先付近に発生するマイクロ
波電界による誘電熱により完全に止血され、無血
的組織切開手術が可能となり、外科的手術におい
て適切かつ正確な手術が実現するものである。 Therefore, when microwave irradiation is performed when incising living tissue, the tissue is easily and smoothly incised by the incision blade 16' of the scalpel 16, and the bleeding caused by this incision is caused by microwave radiation that occurs near the scalpel tip. Hemostasis is completely stopped by dielectric heat generated by a wave electric field, making it possible to perform bloodless tissue incision surgery, thereby realizing appropriate and accurate surgery.
また、前記実施例の場合、メス１６の外側に該
メス１６に沿つてリフレクター１７を設けるた
め、該リフレクター１７によりメス１６より照射
されたマイクロ波を反射することができ、術者の
手元、とくに指先がマイクロ波電界により誘電加
熱される不都合を回避できるものである。 In addition, in the case of the above embodiment, since the reflector 17 is provided on the outside of the scalpel 16 along the scalpel 16, the microwave irradiated from the scalpel 16 can be reflected by the reflector 17, so that it can be used at the operator's hand, especially. This avoids the inconvenience of the fingertip being dielectrically heated by the microwave electric field.
図面はこの発明のマイクロ波手術器の実施例を
示し、第１図ないし第３図は１実施例を示し、第
１図は全体の正面図、第２図は要部の切断正面
図、第３図は一部の斜視図、第４図以下の図面は
他の実施例を示し、第４図は正面図、第５図は平
面図、第６図は側面図、第７図は斜視図である。
５……内部導体、６……絶縁体、７……接地電
極、９……かみそり刃、１０……かみそりホルダ
ー、１３……接栓、１４……中心導体、１５……
絶縁体、１６……メス、１７……リフレクター。
The drawings show an embodiment of the microwave surgical instrument of the present invention, and FIGS. 1 to 3 show one embodiment. FIG. 1 is an overall front view, FIG. 2 is a cutaway front view of main parts, and FIG. Figure 3 is a partial perspective view, Figure 4 and subsequent drawings show other embodiments, Figure 4 is a front view, Figure 5 is a plan view, Figure 6 is a side view, and Figure 7 is a perspective view. It is. 5... Internal conductor, 6... Insulator, 7... Ground electrode, 9... Razor blade, 10... Razor holder, 13... Junction, 14... Center conductor, 15...
Insulator, 16...Female, 17...Reflector.
Claims (1)
介して接地電極を設け、前記内部導体にマイクロ
波照射用中心電極を構成する生体組織の切開用手
術刃を接続したことを特徴とするマイクロ波手術
器。1. A microwave characterized in that a ground electrode is provided on the outside of the internal conductor for microwave transmission via an insulator, and a surgical blade for incising living tissue constituting the center electrode for microwave irradiation is connected to the internal conductor. Surgical instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58174500A JPS6066760A (en) | 1983-09-20 | 1983-09-20 | Microwave operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58174500A JPS6066760A (en) | 1983-09-20 | 1983-09-20 | Microwave operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6066760A JPS6066760A (en) | 1985-04-16 |
| JPS6361021B2 true JPS6361021B2 (en) | 1988-11-28 |
Family
ID=15979579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58174500A Granted JPS6066760A (en) | 1983-09-20 | 1983-09-20 | Microwave operating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066760A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284408U (en) * | 1985-11-18 | 1987-05-29 |
-
1983
- 1983-09-20 JP JP58174500A patent/JPS6066760A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6066760A (en) | 1985-04-16 |
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