Development of high frequency generator for bipolar  electrosurgical unit

Alzaidi, Ali Idham; Yahya, Azli; Swee, Tan Tian; Idris, Nik Rumzi Nik

doi:10.14419/ijet.v7i2.29.13118

Cited by 5 publications

(8 citation statements)

References 10 publications

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“…Power elektronik secara luas digunakan dalam biosains dan instrumen medis seperti uinit bedah mikro, MRI dan X-ray. Perkembangan lanjutan dalam catu daya mode sakelar mengarah ke topologi desain baru konverter DC ke DC untuk sistem bedah mikro [5]. Model sistem ESG untuk kontrol termal perangkat bedah elektro bipolar yang akurat memprediksi tingkat penyebaran termal khususnya elektroda dan jaringan [6].…”

Section: Pendahuluanunclassified

Unit Electrosurgery dengan Mode Bipolar

Zinedine

Indrato²,

Lamidi³

2020

j.teknokes

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Kehilangan banyak darah saat dilakukannya tindakan pembedahan dengan menggunakan pisau bedah konvensional merupakan hal yang sangat dihindari. Tujuan dari penelitian ini yaitu menggantikan pisau bedah konvensional dengan alat yang memanfaatkan frekuensi tinggi yang diatur duty cycle-nya kemudian dipusatkan pada satu titik. Peneliti memanfaatkan efek panas yang dihasilkan oleh frekuensi tinggi yang dipusatkan pada satu titik sehingga dapat digunakan untuk proses tindakan pembedahan dan pemotongan (cutting) pada jaringan tubuh sehingga dapat meminimalisir terjadinya kehilangan banyak darah. Peneliti memanfaatkan frekuensi tinggi sebesar 350 KHz yang diatur dengan duty cycle sebesar 100% on serta dilengkapi dengan 3 tingkatan pemilihan daya dan menggunakan forceps sebagai media untuk memusatkan frekuensi tinggi pada satu titik. Rancangan modul terdiri dari pembangkit frekuensi 350 KHz, rangkaian pengatur pulsa untuk mengatur duty cycle, rangkaian pengatur daya sebagai setting daya, rangkaian driver untuk menggabungkan frekuensi dengan daya yang disetting sehingga didapatkan output yang berbeda sesuai dengan setting, dan rangkaian inverter untuk menaikkan tegangan. Pada penelitian ini, setelah dilakukan pengukuran menggunakan osiloscope pada rangkaian driver, didapatkan output amplitudo rata-rata pada setiap setting low, medium, dan high sebesar 14 Vpp, 19.5 Vpp, dan 22.5 Vpp.

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Section: Pendahuluanunclassified

Unit Electrosurgery dengan Mode Bipolar

Zinedine

Indrato²,

Lamidi³

2020

j.teknokes

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“…In 2012 Daniel Friedrich improvement of electrosurgery output with dual current mode control power regulator [17], but it still needs to set current and voltage limits manually, which makes it hard to use. In 2018 Ali Alzaidi made the development of electrosurgery frequency generator [18]. In this tool, no power and mode selection only pulse mode.…”

Section: Introductionmentioning

confidence: 99%

An Improved Power Management System in Electrosurgery Unit Monopolar Design

Domigata¹,

Indrato²,

Rahmawati³

et al. 2020

Indones.J.electronic.electromed.med.inf

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In using the Electrosurgery unit, improper power settings and modes can cause tissue damage, so it is necessary to adjust the cutting mode and power settings needed. The purpose of this research is to design power control and cutting mode in Electrosurgery using Arduino nano as a regulator of power and pulse or duty cycle. The contribution of this research is the creation of power control and mode in the Electrosurgery unit to increase power and cutting mode. This is to control the electrosurgery power. The LM2907 IC frequency to voltage circuit is used as a voltage regulator, which is issued according to the frequency with the power selection LOW, MEDIUM, HIGH. The method used is the CMOS 4069 device as a frequency generator at 250 kHz, then the driver pulse is passed and controlled by the ATmega328 IC, then forwarded to an inverter circuit that functions to increase the voltage and output in the form of power. After the measurement process is carried out on the inverter input with a Blend mode three value, the voltage value is obtained at the low setting 100 V error 0.03%, medium setting 110V error 0.02%, High setting 120 V Error -0.02%. While the measurement results in the coagulation mode are the low setting error of 100 V 0.05%, the medium setting error is 110V 0.08%. High setting error is 130 V 0.003%. The measurements show that the error in power management is lower than 1%. The results of this study can be implemented in the electrosurgery unit to reduce tissue damage due to a lack of cutting modes and power management.

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“…Adopting high frequencies to prevent unwanted nerve and muscle stimulation is harmful for the patient [ 6 ]. An ESU surgery takes place when the current produced by the generator, is penetrating into the patient's tissue using an active electrode and exits through the neutral electrode [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…According to the tissue impedance, which ranges between 130 and 340 Ω [ 6 , 12 ], adjustment of power magnitude is performed manually depending on operator experience. The magnitude of power generally depends on the type of tissue, electrode, speed of electrode and proposed amount of hemostasis [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

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PID fuzzy control applied to an electrosurgical unit for power regulation

Ridha

Mahdi

Abed

et al. 2020

Journal of Electrical Bioimpedance

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The electrosurgical unit (ESU) is the most common device in modern surgery for cutting and coagulation of tissues. It produces high-frequency alternating current to prevent the stimulation of muscles and nerves. The commercial ESUs are generally expensive and their output power is uncontrolled. The main objective of the proposed study is to propose an economic ESU with an additional feature of output power regulation using a fuzzy logic controller (FLC) based proportional integral derivative (PID) tuned controller. Unlike the previous studies, the proposed controller is designed in a fully closed-loop control fashion to regulate the output power of the ESU to a fixed value under the consideration of highly dynamic tissue impedance. The performance of the proposed method is tested in the MATLAB/SIMULINK environment. In order to validate the superiority of the proposed method, a comparative analysis with a simple (PID) controller based ESU is presented.

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Development of high frequency generator for bipolar electrosurgical unit

Cited by 5 publications

References 10 publications

Unit Electrosurgery dengan Mode Bipolar

Unit Electrosurgery dengan Mode Bipolar

An Improved Power Management System in Electrosurgery Unit Monopolar Design

PID fuzzy control applied to an electrosurgical unit for power regulation

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