What are the advantages of high frequency electrosurgical equipment, and what is the difference betw

1. Different classifications.

The plasma knife is a surgical tool that uses a small, high-temperature jet of air against the surface of the tissue bush and is capable of simultaneously cutting and cauterizing tissue, in some cases sealing blood vessels up to 3 mm in diameter.

High-frequency electric knife. High-frequency surgical instrument) is an alternative to a mechanical scalpel.

Electrosurgical instruments for tissue cutting.

2. The cutting principle is different.

Plasma knife tip.

There is a direct current arc inside, and when the working gas (argon or helium, or a mixture of these two gases) passes through the arc, it is converted from electrical energy to heat energy, so that the gas is ionized and the temperature rises.

When the high-frequency, high-voltage current generated by the high-frequency electrosurgical unit passes through the high-impedance tissue, it generates heat in the tissue, causing the tissue to vaporize or solidify. During electrosurgical use, the resistance varies from 100 ohms to 2000 ohms.

3. The role is different.

The effect of plasma knife on tissues is related to carbon dioxide.

Laser knives are similar in that they can both cut and cauterize. The laser is made with infrared light.

Electromagnetic energy in the wavelength range, while plasma knives are jetted with high temperatures.

Since high-frequency electrosurgical units can perform both cutting and coagulation at the same time, they are widely used in surgeries that are difficult to access and perform with mechanical scalpels.

1. Different frequencies: the frequency of UHF electrosurgical is dozens of times higher than that of high-frequency electrosurgical equipment, and the frequency of ultra-high frequency electrosurgical is generally above 100MHz, while the frequency of high-frequency electrosurgical is generally below 30MHz. 2. The working principle is different

The ultra-high frequency electric knife uses magnetron amplification technology sock wheel, which can achieve high power, high efficiency and high stability, while the high-frequency electric knife adopts ordinary analogue amplification technology, which has relatively low power and stability. 3. Power imbalance: UHF electric knife can reach a power of more than 1000W, while the high-frequency electric knife only has a power of about 30W.

4. Different efficiency: The processing efficiency of UHF electric knife is much higher than that of high-frequency electric knife, because its frequency is higher and a large amount of processing can be achieved in a short time. 5. Good numbers should be used differently:

UHF EAU can be used for high-precision, high-precision machining, such as microelectronic components, micromechanical parts, etc., while high-frequency EAU is suitable for ordinary processing, such as plastic parts, metal parts, glass, etc.

Brand model: medical high-frequency electric knife.

System: LK-3

The high-frequency electrosurgical unit is disposable. A high-frequency electrosurgical knife (high-frequency surgical instrument) is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. It heats the tissue through the high-frequency vertical high-voltage current generated by the tip of the active electrode when it comes into contact with the body, and realizes the separation and coagulation of the body tissue, so as to achieve the purpose of cutting and stopping bleeding.

It is used in various endoscopic surgeries, such as laparoscopy, prostate resection, gastroscopy, cystoscopy, hysteroscopy and other surgeries. Since high-frequency electrosurgical units can perform both cutting and coagulation at the same time, it is difficult to access and perform surgeries with mechanical scalpels (eg

Abdominal tube disturbance ligation, prostatic urethral mass excision) is commonly used.

The outstanding coagulation effect of high-frequency electric knife makes it widely used in diffuse bleeding sites such as liver, spleen, thyroid, breast, and lung surgery. Other functions: In addition to the basic functions such as performing surgery, a high-frequency electric knife with comprehensive performance has the following important functions:

Output power indication; Power preset and adjusted; Patient plate detection alarm; working audio indications; Output port anti-mis-insertion function; Hand control, foot control function.

The high-frequency electrosurgical unit itself must have a very complete and reliable safety guarantee system, which is the most basic condition to ensure the safety of patients and medical staff. Due to Yu Li's attack, the high-frequency electric knife should be strictly tested and inspected one by one, item by item, or even repeated many times before leaving the factory. Users should also establish appropriate regular testing methods to ensure that the safety indicators of the electrocutor are always maintained within the scope of the International Electrotechnical Society and China's standards for high-frequency electrocutors (i.e., IEC601-2-2, and regulations) issued by the International Electrotechnical Society in May 1995.

1. The meaning is different.

Electroresection: Concentrated heating of the local tissue surface by high-density, high-frequency current.

Electrocoagulation: Heating of bleeding and moist tissues at lower high-frequency power and lower current density.

2. The voltage is different.

Switch: The voltage in the switch-through mode is slightly lower.

Electrocoagulation: The voltage in the electric switch mode is relatively high.

3. The heat production capacity is different.

Electric resection: The electric resection mode has a large heat production capacity.

Electrocoagulation: The electrocoagulation mode has a small heat production capacity.

4. The frequency is different.

Electrocution: The frequency of the electrocution mode is higher than that of the electrocoagulation mode.

Electrocoagulation: The frequency of the electrocoagulation mode is lower than that of the electrocution mode.

5. Different characteristics.

Electroresection: Causes the tissue components of the tissue to expand and burst rapidly and separate.

Electrocoagulation: Volatilizes the liquid components (mainly water) without bursting the tissue.