JPS6410222B2 - - Google Patents

Info

Publication number
JPS6410222B2
JPS6410222B2 JP56206107A JP20610781A JPS6410222B2 JP S6410222 B2 JPS6410222 B2 JP S6410222B2 JP 56206107 A JP56206107 A JP 56206107A JP 20610781 A JP20610781 A JP 20610781A JP S6410222 B2 JPS6410222 B2 JP S6410222B2
Authority
JP
Japan
Prior art keywords
discharge
voltage
electrodes
capacitor
electrolithotomy
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
Application number
JP56206107A
Other languages
Japanese (ja)
Other versions
JPS58109046A (en
Inventor
Shuichi Takayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP56206107A priority Critical patent/JPS58109046A/en
Priority to US06/449,699 priority patent/US4535771A/en
Priority to EP82111750A priority patent/EP0082508B1/en
Priority to DE8282111750T priority patent/DE3267842D1/en
Priority to AT82111750T priority patent/ATE16762T1/en
Publication of JPS58109046A publication Critical patent/JPS58109046A/en
Priority to US06/899,787 priority patent/US4691706A/en
Publication of JPS6410222B2 publication Critical patent/JPS6410222B2/ja
Granted legal-status Critical Current

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  • Surgical Instruments (AREA)
  • Disintegrating Or Milling (AREA)

Description

【発明の詳細な説明】 本発明は、たとえば尿路結石、ぼうこう結石、
胆石などの結石を放電衝撃波により破砕する電気
砕石装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to, for example, urinary tract stones, bladder stones,
The present invention relates to an electrolithotomy device that crushes stones such as gallstones using discharge shock waves.

一般に、この種の電気砕石装置はプローブによ
つて体内に導入できる微小な電極間に直流の電圧
を印加することにより火花放電を作り、そのとき
発生する衝撃波で結石する破砕するものである
が、電極間で火花放電が行なわれるため、その電
極が消耗しやすかつた。したがつて、処置中に放
電がしなくなり、電極を新しいものと交換しなけ
ればならなくなる事態が頻繁に起きていた。この
ときには処置時間が不必要に長くなるとともに、
術者、患者ともに大変な事態となるものであつ
た。
In general, this type of electrolithotomy device creates a spark discharge by applying a direct current voltage between minute electrodes that can be introduced into the body using a probe, and the shock waves generated at this time cause stones to be crushed. Since a spark discharge occurred between the electrodes, the electrodes were easily worn out. Therefore, during the procedure, discharge frequently ceases and the electrode must be replaced with a new one. In this case, the treatment time becomes unnecessarily long, and
This was a serious situation for both the surgeon and the patient.

本発明は上記事情に着目してなされたもので、
その目的とするところは放電用の電極の寿命をあ
らかじめ知り術中に放電しなくなる事態を未然に
防止できるようにした電気砕石装置を提供するこ
とにある。
The present invention was made with attention to the above circumstances, and
The purpose is to provide an electrolithotomy device in which the lifespan of the discharge electrode can be known in advance to prevent a situation in which the discharge stops during the procedure.

以下、本発明の一実施例を図面を参照して説明
する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第1図中は直流電源であり、この直流電源1に
は抵抗2、スイツチ3を介してコンデンサ4が並
列に接続されている。コンデンサ4にはスイツチ
放電管5を介して接点6,6が並列に接続され、
この接点6,6には2個の分圧用抵抗7,8から
なる直列回路が接続されている。分圧用抵抗7,
8の間の分圧点はコンパレータ9の一方の入力端
に接続されている。コンパレータ9の他方の入力
端は基準電圧を設定する電池11の陽極に接続さ
れている。電池11の負極は直流電源1の負極に
接続されている。コンパレータ9の出力端はダイ
オード10を介してバツフア12の一方の入力端
に接続されるとともに、上記ダイオード10とコ
ンデンサ13を介して上記直流電源1の負極に接
続されている。バツフア12の出力端は抵抗14
と発光ダイオード15からなる直列回路と、発音
回路17とを並列に介して上記電源1の負極に接
続されている。
In FIG. 1, a DC power supply is shown, and a capacitor 4 is connected in parallel to this DC power supply 1 via a resistor 2 and a switch 3. Contacts 6, 6 are connected in parallel to the capacitor 4 via a switch discharge tube 5.
A series circuit consisting of two voltage dividing resistors 7 and 8 is connected to the contacts 6 and 6. Voltage dividing resistor 7,
A voltage dividing point between 8 and 8 is connected to one input terminal of a comparator 9. The other input terminal of the comparator 9 is connected to the anode of a battery 11 that sets a reference voltage. The negative electrode of the battery 11 is connected to the negative electrode of the DC power supply 1. The output terminal of the comparator 9 is connected to one input terminal of a buffer 12 via a diode 10, and is also connected to the negative terminal of the DC power supply 1 via the diode 10 and capacitor 13. The output end of buffer 12 is resistor 14
It is connected to the negative terminal of the power source 1 via a series circuit consisting of a light emitting diode 15 and a sounding circuit 17 in parallel.

一方、20はタイミング制御回路であり、この
タイミング制御回路20の出力信号によりスイツ
チ駆動回路21を操作し、前記スイツチ3を閉成
できるようになつている。さらに、タイミング制
御回路20の出力信号はトリガ電圧発生回路22
を操作し、上記スイツチ放電管5をトリガするよ
うになつている。
On the other hand, 20 is a timing control circuit, and the switch drive circuit 21 is operated by the output signal of this timing control circuit 20, so that the switch 3 can be closed. Further, the output signal of the timing control circuit 20 is transmitted to the trigger voltage generation circuit 22.
is operated to trigger the switch discharge tube 5.

また、前記接点6,6にはプローブ23側の接
点24,24が接続されるようになつており、こ
のプローブ23にはその接点24,24に導通す
る放電用の電極25,25が設けられている。
Further, the contacts 24, 24 on the probe 23 side are connected to the contacts 6, 6, and the probe 23 is provided with discharge electrodes 25, 25 that are electrically connected to the contacts 24, 24. ing.

次に、上記構成の電気砕石装置の作用を説明す
る。
Next, the operation of the electrolithotomy apparatus having the above configuration will be explained.

まず、タイミング制御回路20に放電指令の制
御信号が入力されると、スイツチ駆動回路21が
駆動され、第2図のイで示すパルス信号が発生
し、スイツチ3を閉成する。このため、コンデン
サ4には直流電源1から抵抗2を介して給電さ
れ、第2図のハで示すように充電される。つい
で、タイミング制御回路20から第2図のロで示
すようなトリガ駆動パルスが発せられ、トリガ電
圧発生回路22が高電圧を、スイツチ放電管5に
印加するため、そのスイツチ放電管5は放電して
導通する。このため、接点6,6間には第2図の
ホで示すごとく電圧が印加される。そして、放電
用の電極25,25の間の電圧が所定の電圧値以
上になると、その間の絶縁がやぶれ、第2図のニ
で示すような波形で放電する。このとき、放電衝
撃波を発して結石を破砕する。
First, when a control signal for a discharge command is input to the timing control circuit 20, the switch drive circuit 21 is driven, and a pulse signal shown by A in FIG. 2 is generated to close the switch 3. Therefore, the capacitor 4 is supplied with power from the DC power supply 1 via the resistor 2, and is charged as shown by C in FIG. Next, the timing control circuit 20 issues a trigger driving pulse as shown in FIG. conduction. Therefore, a voltage is applied between the contacts 6, as shown by E in FIG. Then, when the voltage between the discharge electrodes 25, 25 exceeds a predetermined voltage value, the insulation between them is broken, and a discharge occurs with a waveform as shown by D in FIG. At this time, a discharge shock wave is emitted to crush the stone.

このようにして何度か放電をさせ、電極25,
25の使用期間が長くなると、その電極25,2
5特に陽極側が消耗して間隔が広くなるため、次
第に放電開始電圧が高くなり、やがて放電しなく
なる。しかしながら、本発明では抵抗7,8でそ
の電極25,25間に加わる電圧を分圧するとと
もに、その分圧点の電圧をコンパレータ9で、電
池11の設定電圧と比較する。そして、その電池
11の設定電圧値は電極25,25間の放電がま
もなく不可能になる以前の電圧値に対応させてお
く。なお、第2図において左側は放電開始電圧が
低い場合、右側は放電開始電圧が高い場合を示し
ている。そこで、電極25,25が消耗し間隔が
広くなることにより処置中に放電しなくなる可能
性が出てきたとき、電池11の電圧よりも分圧点
の電圧が高くなる。すると、コンパレータ9は第
2図のヘで示すようにパルスを出力し、ダイオー
ド10を通じてコンデンサ13を充電する。この
コンデンサ13の電圧をバツフア12で受け、第
2図のトで示す波形の出力により、抵抗14を介
して発光ダイオード15を点灯させるとともに、
発音回路17を駆動する。これにより電極25,
25が消耗し、処置中に放電しなくなる危険があ
ることを報知する。そこで、電極25,25を新
しいものと交換しなければならないことがあらか
じめ知れる。
In this way, discharge is caused several times, and the electrode 25,
25 is used for a long time, the electrodes 25, 2
5 In particular, as the anode side wears out and the gap becomes wider, the discharge starting voltage gradually increases and eventually the discharge stops. However, in the present invention, the voltage applied between the electrodes 25 and 25 is divided by the resistors 7 and 8, and the voltage at the voltage dividing point is compared with the set voltage of the battery 11 by the comparator 9. The set voltage value of the battery 11 is made to correspond to the voltage value before discharge between the electrodes 25, 25 becomes impossible soon. In addition, in FIG. 2, the left side shows the case where the discharge starting voltage is low, and the right side shows the case where the discharge starting voltage is high. Therefore, when there is a possibility that the electrodes 25, 25 are worn out and the distance between them becomes wider, and there is a possibility that they will not be discharged during treatment, the voltage at the voltage dividing point becomes higher than the voltage of the battery 11. Then, the comparator 9 outputs a pulse as shown by F in FIG. 2, and charges the capacitor 13 through the diode 10. The voltage of this capacitor 13 is received by the buffer 12, and the output of the waveform shown in FIG.
The sound generation circuit 17 is driven. As a result, the electrode 25,
25 is exhausted and there is a danger that it will stop discharging during treatment. Therefore, it is known in advance that the electrodes 25, 25 must be replaced with new ones.

なお、本発明は上記実施例のものに限定されな
い。たとえば放電開始電圧の検出としてはコンデ
ンサ4の電圧と電極25,25間の電圧の差がス
イツチ放電管5の両端の電圧であることからその
スイツチ放電管5の両端から測定するようにして
もよい。さらに、電極25,25間のギヤツプが
開いてくると、放電終了時の電圧が高くなるの
で、コンデンサ4の電圧を測定してもよい。
Note that the present invention is not limited to the above embodiments. For example, to detect the discharge starting voltage, since the difference between the voltage of the capacitor 4 and the voltage between the electrodes 25 and 25 is the voltage across the switch discharge tube 5, it may be measured from both ends of the switch discharge tube 5. . Furthermore, as the gap between the electrodes 25 opens, the voltage at the end of discharge increases, so the voltage across the capacitor 4 may be measured.

また、電極25,25間に加わる電圧を検知す
るコンパレータ9…を複数設けるとともに、各コ
ンパレータ9…の基準電圧も種々異なる値とする
とともに、それに応じた表示部をそれぞれ設けた
ものでよい。
Further, a plurality of comparators 9 for detecting the voltage applied between the electrodes 25, 25 may be provided, and the reference voltages of the comparators 9 may be set to various values, and display portions may be provided accordingly.

以上説明したように本発明は放電用の電極間に
おける放電開始電圧の大小によりその電極の損傷
度合を検出し、電極の損傷が一定以上になつたと
き警報を出すようにしたものである。したがつ
て、電極が消耗して処置中に放電しなくなる危険
をあらかじめ知り、その電極を新しいものと交換
しておくことができる。このため、術中に放電し
なくなる事故を防止し、安心して使用できる。
As explained above, the present invention detects the degree of damage to the discharge electrodes based on the magnitude of the discharge starting voltage between the electrodes, and issues an alarm when the damage to the electrodes exceeds a certain level. Therefore, it is possible to know in advance the risk of the electrode becoming worn out and no longer discharging during the procedure, and to replace the electrode with a new one. This prevents accidents in which the discharge stops during surgery, and can be used with peace of mind.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の一実施例を示すもので、第1図
はその電気回路図、第2図は波形図である。 1…直流電源、4…コンデンサ、6…接点、
7,8…分圧用抵抗、9…コンパレータ、15…
発光ダイオード、17…発音回路、23…プロー
ブ、25…放電用の電極。
The drawings show one embodiment of the present invention, and FIG. 1 is an electric circuit diagram thereof, and FIG. 2 is a waveform diagram thereof. 1... DC power supply, 4... Capacitor, 6... Contact,
7, 8... Resistor for voltage division, 9... Comparator, 15...
Light emitting diode, 17... Sound generation circuit, 23... Probe, 25... Electrode for discharge.

Claims (1)

【特許請求の範囲】[Claims] 1 放電用の電極間に電圧を印加して放電させた
ときの放電衝撃波により砕石する電気砕石装置に
おいて、放電用の電極間に放電開始電圧の大小に
より電極の損傷度合を検出する手段と、上記電極
の損傷が一定以上になつたとき上記手段の指令に
より警報を出す警報手段とを具備してなることを
特徴とする電気砕石装置。
1. In an electrolithotomy device that crushes stones by a discharge shock wave when a voltage is applied between the discharge electrodes to generate a discharge, means for detecting the degree of damage to the electrodes based on the magnitude of the discharge starting voltage between the discharge electrodes, and the above-mentioned method. An electrolithotomy device characterized by comprising: alarm means for issuing an alarm in response to a command from the above means when damage to the electrodes exceeds a certain level.
JP56206107A 1981-12-22 1981-12-22 Electric stone crusher Granted JPS58109046A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56206107A JPS58109046A (en) 1981-12-22 1981-12-22 Electric stone crusher
US06/449,699 US4535771A (en) 1981-12-22 1982-12-14 Calculus disintegrating apparatus
EP82111750A EP0082508B1 (en) 1981-12-22 1982-12-17 A calculus disintegrating apparatus
DE8282111750T DE3267842D1 (en) 1981-12-22 1982-12-17 A calculus disintegrating apparatus
AT82111750T ATE16762T1 (en) 1981-12-22 1982-12-17 DEVICE FOR DESTROYING BLADDER STONES.
US06/899,787 US4691706A (en) 1981-12-22 1986-08-22 Calculus disintegrating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56206107A JPS58109046A (en) 1981-12-22 1981-12-22 Electric stone crusher

Publications (2)

Publication Number Publication Date
JPS58109046A JPS58109046A (en) 1983-06-29
JPS6410222B2 true JPS6410222B2 (en) 1989-02-21

Family

ID=16517912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56206107A Granted JPS58109046A (en) 1981-12-22 1981-12-22 Electric stone crusher

Country Status (1)

Country Link
JP (1) JPS58109046A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62152447A (en) * 1985-12-26 1987-07-07 アロカ株式会社 Stone crushing apparatus

Also Published As

Publication number Publication date
JPS58109046A (en) 1983-06-29

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