JPS605303B2 - electric scalpel device - Google Patents
electric scalpel deviceInfo
- Publication number
- JPS605303B2 JPS605303B2 JP52008378A JP837877A JPS605303B2 JP S605303 B2 JPS605303 B2 JP S605303B2 JP 52008378 A JP52008378 A JP 52008378A JP 837877 A JP837877 A JP 837877A JP S605303 B2 JPS605303 B2 JP S605303B2
- Authority
- JP
- Japan
- Prior art keywords
- patient
- electrode
- temperature detection
- electric scalpel
- scalpel device
- 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
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Surgical Instruments (AREA)
Description
【発明の詳細な説明】
この発明は患者の焼灼手術に使用する電気メス装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric scalpel device used for ablation surgery on a patient.
一般に高周波電気メス装置は、高周波電流により患者の
焼灼手術を行なうもので、生体組織の破壊を目的として
いるため、患者を火傷させるに充分な電流を通流させる
ものである。Generally, a high-frequency electric scalpel device performs cauterization surgery on a patient using a high-frequency current, and since the purpose is to destroy living tissue, a current sufficient to burn the patient is passed through the device.
第１図は患者に対して高周波電気メス装置を使用した場
合の回路構成を示すもので、高周波電気メス装置は患者
１に対してその患者１の患部側に処置用電極２が配置さ
れ、その患者１の患部反対側に接触面が平面状の患者電
極３が配置されている。Figure 1 shows the circuit configuration when a high-frequency electric scalpel device is used for a patient. A patient electrode 3 having a flat contact surface is placed on the opposite side of the patient 1 to the affected area.
前記処置用電極２はリード線４を介して電気メス装置の
電源装置５にコネクタ６により接続され、かつ前記患者
電極３はリード線７を介して上記電源装置５にコネクタ
８を介して接続されている。そして前記患者電極３側は
前記電源装置５内においてケースに援続されるとともに
接地されている。このような構成において電気メス装置
はその処置用電極２と患者電極３との間に高周波電流を
通流する。The treatment electrode 2 is connected via a lead wire 4 to a power supply device 5 of the electric scalpel device by a connector 6, and the patient electrode 3 is connected to the power supply device 5 via a lead wire 7 via a connector 8. ing. The patient electrode 3 side is connected to the case within the power supply device 5 and is grounded. In such a configuration, the electric scalpel device passes a high frequency current between the treatment electrode 2 and the patient electrode 3.
この場合処置用電極２は鋭い刃状をしており、したがっ
て患者１との接触部には密度の高い高周波電流が流れる
。この電流により患者１との接触部はジュール熱を発生
し、組織破壊を可能とする。すなわち焼灼手術を可能と
する。そして処置用電極２から患者１の体内に流れ込ん
だ高周波電流は徐々にその密度を減少させて患者電極３
側に流れる。患者電極３は患者１に対して広い面積をも
って面接触しているので患者１から患者電極３に流れる
電流の密度は非常に小さくなり、患者１に対して火傷な
どの事故を起こす塵れはない。ところがこのような動作
の最中に第２図に示すように患者電極３と患者１との接
触面積が小さくなるような問題が生じると、火傷事故に
対処することができなくなる。In this case, the treatment electrode 2 has a sharp blade shape, and therefore a high-density high-frequency current flows through the contact portion with the patient 1. This current generates Joule heat at the contact portion with the patient 1, making it possible to destroy tissue. In other words, it enables ablation surgery. The high frequency current flowing into the body of the patient 1 from the treatment electrode 2 gradually decreases its density and
flows to the side. Since the patient electrode 3 is in surface contact with the patient 1 over a wide area, the density of the current flowing from the patient 1 to the patient electrode 3 is extremely small, and there is no dust that could cause accidents such as burns to the patient 1. . However, if a problem occurs in which the contact area between the patient electrode 3 and the patient 1 becomes small as shown in FIG. 2 during such an operation, it becomes impossible to deal with burn injuries.
この第２図の例は患者電極３と電源装置５との接続をさ
らにリード線１２を設けることによって２重とし、リー
ド線７の断線事故やコネクタ８の抜け事故を検出するよ
うにしているものにあって、患者電極３のゆがみにより
患者電極３と患者１との接触が■，■の２ケ所になって
いる場合である。この第２図のような場合、リード線７
の断線事故やコネクタ８の抜け事故が検出されることは
無いので、装置は正常に使用されているものと判断され
る。In the example shown in FIG. 2, the connection between the patient electrode 3 and the power supply device 5 is doubled by further providing a lead wire 12, so that disconnection of the lead wire 7 or disconnection of the connector 8 can be detected. In this case, due to the distortion of the patient electrode 3, the patient electrode 3 and the patient 1 come into contact with each other in two places (■ and ■). In the case shown in Fig. 2, the lead wire 7
Since no wire breakage or disconnection of the connector 8 has been detected, it is determined that the device is being used normally.
しかしながら実際には接触部■，■の面積が小さいので
、この接触部■，■には密度の高い高周波電流が流れる
ことになり火傷事故を起こしてしまう。そこでこのよう
な患者電極３のゆがみに対して接触性を良くするために
導電性ゼリーや食塩水を使用することも考えられるが、
長時間の手術や患者の身動き等に対しては充分とはいえ
ない問題がある。However, in reality, the areas of the contact portions (1) and (2) are small, so a high-density high-frequency current flows through the contact portions (2) and (2), resulting in a burn injury. Therefore, it may be possible to use conductive jelly or saline solution to improve contact with such distortion of the patient electrode 3.
There is a problem that it is not sufficient for long-term surgeries and patient movements.
この発明はこのような点にかんがみてなされたもので、
患者電極と患者との間が接触不良になったときはそれを
確実に検出することができ、火傷事故発生を未然に防止
することができる電極メス装置を提供することを目的と
する。This invention was made in view of these points,
To provide an electrode scalpel device that can reliably detect poor contact between a patient electrode and a patient and can prevent burn accidents from occurring.
以下、この発明の一実施例を図面を参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.
これは第３図のａ，ｂに示すように高周波電気メス装置
の患者電極３に複数の温度検出素子１６ａ，１６ｂ・・
・を散在させたもので、上記患者電極３は熱伝導率が良
く可嫌性のある金属、例えば鉛等で構成される２枚の金
属板１７，１８間に複数の温度検出素子１６ａ，１６ｂ
・・・を散在させ、各温度検出素子１６ａ，１６ｂ・・
・間に充填材１９を埋め込んで形成されている。第４図
は温度検出素子間の検出レベル差を検出して報知装置を
付勢する回路例で、温度検出素子１６ａ，１６ｂの検出
出力は差動増幅器２０‘こ入力される。As shown in Fig. 3 a and b, the patient electrode 3 of the high frequency electric scalpel device has a plurality of temperature detection elements 16a, 16b...
The patient electrode 3 has a plurality of temperature detection elements 16a, 16b between two metal plates 17, 18 made of a metal with good thermal conductivity and aversion, such as lead.
... are scattered, and each temperature detection element 16a, 16b...
- It is formed by embedding a filler 19 in between. FIG. 4 shows an example of a circuit that detects a detection level difference between temperature detection elements and energizes the notification device.The detection outputs of the temperature detection elements 16a and 16b are inputted to a differential amplifier 20'.
この差動増幅器２川ま両温度検出素子１６ａ，１６ｂの
検出出力のレベル差を算出し、そのレベル差が一定値を
越えるとリレ−２１を付勢するようにしている。そして
ランプ２２とブザー２３とを並列に接続してなる報知装
置２４は前記リレー２１の常開接点２１ａを直列に介し
て十Ｖボルト端子とアース間に接続されている。この場
合は患者１が患者電極３に平均して接触しているときは
各温度検出素子１６ａ，１６ｂ…の検出レベルが略筆し
くなっているが、局部的に接触するようなことが起こる
とその婆触部に設けられている温度検出素子の検出レベ
ルが異常に高くなり、逆に非接触部に設けられている温
度検出素子の検出レベルが低くなる。したがって両温度
検出素子１６ａ，１６ｂ間の検出レベル差が一定値以上
になったときにはリレー２１が動作し、ランプ２２が点
灯するとともにブザー２３が鳴り使用者に知らせる。The level difference between the detection outputs of the two temperature detection elements 16a and 16b of the two differential amplifiers is calculated, and when the level difference exceeds a certain value, the relay 21 is energized. A notification device 24, which is made up of a lamp 22 and a buzzer 23 connected in parallel, is connected between the 10V volt terminal and ground via the normally open contact 21a of the relay 21 in series. In this case, when the patient 1 is in contact with the patient electrode 3 on average, the detection level of each temperature detection element 16a, 16b, etc. is approximately normal, but if a local contact occurs, The detection level of the temperature detection element provided in the contact portion becomes abnormally high, and conversely, the detection level of the temperature detection element provided in the non-contact portion becomes low. Therefore, when the detection level difference between the two temperature detection elements 16a, 16b exceeds a certain value, the relay 21 is activated, the lamp 22 is turned on, and the buzzer 23 sounds to notify the user.
なお、この場合リレー２１の動作によって高周波電気メ
ス装置の動作を直接停止させるようにしてもよい。In this case, the operation of the high frequency electric scalpel device may be directly stopped by the operation of the relay 21.
また、各温度検出素子間の検出レベル差とともに、各温
度検出素子の検出レベルそのものを監視すれば患者電極
３の各部における患者１との接触状態を克明に検出する
ことができる。Further, by monitoring the detection level itself of each temperature detection element as well as the detection level difference between each temperature detection element, the state of contact with the patient 1 at each part of the patient electrode 3 can be clearly detected.
以上詳述したようにこの発明によれば患者と患者電極と
の間が接触不良になっても、患者電極にすくなくとも１
個以上の温度検出素子を設け、検出レベルが一定値以上
になったら警告をだしているので、患者の火傷事故等の
発生を未然に防止できる電気メス装置を提供するもので
ある。As detailed above, according to the present invention, even if there is poor contact between the patient and the patient electrode, at least one
The present invention provides an electric scalpel device that is equipped with more than one temperature detection element and issues a warning when the detection level exceeds a certain value, thereby preventing the occurrence of burn injuries to patients.
第１図および第２図は従来における問題点を説明するた
めの図、第３図はこの発明の他の実施例を示すもので、
ａは断面図、ｂは温度検出素子の散在状態を示す平面図
、第４図は温度検出素子間の検出レベル差を算出する回
路例を示すブロック図である。
１・・・…患者、３，１０…・・・患者電極、１６・・
・・・・温度検出素子。
第１図
第２図
第３図
第４図FIGS. 1 and 2 are diagrams for explaining problems in the prior art, and FIG. 3 shows another embodiment of the present invention.
FIG. 4 is a cross-sectional view, FIG. 4 is a plan view showing a state in which temperature detection elements are scattered, and FIG. 4 is a block diagram showing an example of a circuit for calculating a detection level difference between temperature detection elements. 1...Patient, 3, 10...Patient electrode, 16...
...Temperature detection element. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
広い面積で面接触し、患者と電源との間に通電路を介し
た患者電極とを有した電気メス装置において、患者に接
触するようにした熱伝導率の良い金属板と上記金属板に
配置した複数個の温度検出素子とを備える患者電極と、
上記各温度検出素子の検出レベル差が一定値以上になっ
た場合に警告する告知手段とを有することを特徴とする
電気メス装置。1. Contacting the patient in an electric scalpel device that has a treatment electrode that contacts the affected area of the patient, and a patient electrode that makes surface contact with the patient over a wide area and has an energized path between the patient and the power source. A patient electrode comprising a metal plate with good thermal conductivity and a plurality of temperature detection elements arranged on the metal plate,
An electric scalpel device characterized by comprising: a notification means for issuing a warning when a detection level difference between the temperature detection elements exceeds a certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52008378A JPS605303B2 (en) | 1977-01-28 | 1977-01-28 | electric scalpel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52008378A JPS605303B2 (en) | 1977-01-28 | 1977-01-28 | electric scalpel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5393683A JPS5393683A (en) | 1978-08-16 |
| JPS605303B2 true JPS605303B2 (en) | 1985-02-09 |
Family
ID=11691552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52008378A Expired JPS605303B2 (en) | 1977-01-28 | 1977-01-28 | electric scalpel device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605303B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61152212U (en) * | 1985-03-14 | 1986-09-20 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8800028A1 (en) * | 1986-06-25 | 1987-11-01 | Fuchelman Sa | Contour type electrosurgical dispersive electrode. |
| JPH0228887Y2 (en) * | 1986-07-28 | 1990-08-02 | ||
| US7927329B2 (en) * | 2006-09-28 | 2011-04-19 | Covidien Ag | Temperature sensing return electrode pad |
| US8080007B2 (en) * | 2007-05-07 | 2011-12-20 | Tyco Healthcare Group Lp | Capacitive electrosurgical return pad with contact quality monitoring |
| US12396787B2 (en) | 2020-01-17 | 2025-08-26 | Biosense Webster (Israel) Ltd. | Catheter with integrated thin-film microsensors |
-
1977
- 1977-01-28 JP JP52008378A patent/JPS605303B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61152212U (en) * | 1985-03-14 | 1986-09-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5393683A (en) | 1978-08-16 |
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