In a monopolar electrosurgical procedure, a pencil-like electrode is used to cut the target tissue and/or coagulate bleeding. A return electrode pad is utilized and attached to the patient and safely retrieves energy that passes through the body..

How does a cautery machine work?

During electrocautery, current does not enter the patient's body. Instead, current flows through a heating element, which burns the tissue by direct transfer of heat. Electrocautery or, more precisely, thermocautery units (Figure 3) are usually portable battery powered devices that can be either disposable or reusable.

What is monopolar cautery used for?

Monopolar electrosurgery can be used for several modalities including cut, blend, desiccation, and fulguration. Using a pencil instrument, the active electrode is placed in the entry site and can be used to cut tissue and coagulate bleeding.

What's the difference between monopolar and bipolar cautery?

All RF electrosurgery is bipolar so the difference between monopolar and bipolar instruments is that monopolar instruments comprise only one electrode while bipolar instruments include both electrodes in their design.

What is monopolar electrocautery?

monopolar electrocautery (unipolar electrocautery) an electrocautery in which current is applied through a handheld active electrode and travels back to the generator through an inactive electrode attached to the patient (the grounding pad), so that the patient is part of the electrical circuit.

Olympus Academy - Basic Principles and Practices for Electrosurgery

44 related questions found

What does monopolar mean?

Monopolar meaning

Having a single pole. adjective. Using a single electrode.

Does monopolar use alternating current?

As we mentioned above, electrosurgical units use alternating current to reach the frequency necessary to cut and coagulate tissue. ... In monopolar electrosurgery, the current travels from the electrode in the handpiece through the body to the dispersive pad, which sends the current back to the generator.

What is monopolar TURP?

Monopolar TURP: Conventional TURP removes tissue with a wire loop that has electrical current flowing in one direction (monopolar) through the resectoscope to cut the tissue. The surgical site is irrigated with nonconducting fluid.

Can you use monopolar cautery with a pacemaker?

When possible, bipolar electrocautery should be used. 2. If this is not practical, and monopolar electrocautery must be used, the cautery current pathway should be perpendicular to the pacemaker's lead system when possible. This is done by manipulating the placement of the grounding plate.

Is LigaSure monopolar or bipolar?

LigaSure (bipolar vessel sealing) technology is a radiofrequency-driven bipolar electrosurgical device.

Can you use monopolar with cochlear implant?

Monopolar electrosurgical instruments must not be used on the head or neck of a cochlear implant patient as induced currents could cause damage to cochlear tissues or permanent damage to the implant.

How does a harmonic scalpel work?

A harmonic scalpel cuts via vibration. The scalpel surface itself cuts through tissue by vibrating in the range of 55,500 Hz. The high frequency vibration of tissue molecules generates stress and friction in tissue, which generates heat and causes protein denaturation.

What is the principle of electrocautery?

Electrocautery, also known as thermal cautery, refers to a process in which a direct or alternating current is passed through a resistant metal wire electrode, generating heat. The heated electrode is then applied to living tissue to achieve hemostasis or varying degrees of tissue destruction.

What is blended current?

A “blended current” is not a mixture of both cutting and coagulation current but rather a modification of the duty cycle. As you go from Blend 1 to Blend 3 the duty cycle is progressively reduced. A lower duty cycle produces less heat.

How is cauterization done?

Cauterization, or cautery, is a medical technique performed by a doctor or surgeon. During the procedure, they use electricity or chemicals to burn tissue in order to close a wound. It may also be done to remove harmful tissue. Wound cauterization is a routine procedure, but it's not the first line of treatment.

Can an ICD be turned off remotely?

You can request that an ICD be deactivated at any time.

Can you use a Jacuzzi if you have a pacemaker?

NOTE: Talk with your doctor before using a hot tub. It will not harm your pacemaker but hot tubs may affect your medical condition.

When should a pacemaker be Reprogramed?

For patients who have any significant degree of pacemaker dependence, pacing mode should be reprogrammed to VOO or DOO because of the potential for inhibition of the ventricular pacing circuit due to interference from the ESWL wave.

Why normal saline is not used in monopolar TURP?

As an isotonic electrolyte medium, normal saline is the most physiologic irrigant for TURP, but its electrical conducting properties prohibit its use with conventional monopolar cautery. The development of bipolar resection systems now permits the use of normal saline as an irrigant.

Which is better TURP or laser?

There was no difference between the two procedures in terms of hospital stay or complications. However, men in the TURP group achieved a faster urinary flow rate (they could pass higher volumes of urine more quickly). TURP was also slightly more cost-effective and faster to perform than the laser procedure.

Is TURP a major surgery?

TURP is a major surgery with serious risks and potential complications. You may have less invasive treatment options.

What is polyphasic AC waveforms?

A polyphase system is a means of distributing alternating-current (AC) electrical power where the power transfer is constant during each electrical cycle. ... Compared to a single-phase, two-wire system, a three-phase three-wire system transmits three times as much power for the same conductor size and voltage.

What is the frequency of Russian current?

Russian currents are alternating currents (AC) at a frequency of 2.5 kHz that are burst modulated at a frequency of 50 Hz with a 50% duty cycle.

What is biphasic estim?

Biphasic Current

"Biphasic" refers to two phases, or pulses, of 2 different intensities alternating with each other during treatment. ... With its versatility and effectiveness, Biphasic current e-stim can be used to: strengthen muscles. re-educate muscles. increase circulation.