Anesthesia Series

A potentiometer is a resistive element with three leading ends and the resistance value can be adjusted according to a certain changing law. A potentiometer usually consists of a resistive body and a movable brush. When the brush moves along the resistor body, the resistance value or voltage that has a certain relationship with the displacement is obtained at the output end.
Potentiometers can be used as both three-terminal components and two-terminal components. The latter can be regarded as a variable resistor, because its function in the circuit is to obtain an output voltage that has a certain relationship with the input voltage (applied voltage), so it is called a potentiometer.

Laryngeal mask is a supraglottic ventilation device (artificial airway) developed by British anesthesiologists in 1983 according to the structure of human throat, which forms a closed ventilation space around the glottis.
Through laryngeal mask, patients can not only maintain spontaneous breathing, but also implement positive pressure ventilation. It is a new type of ventilation device between mask and endotracheal intubation. Silicone laryngeal mask has the advantages of simple operation, easy to master, little damage, good patient tolerance and so on. It is a new type of ventilation tool commonly used in clinic.
It is widely used in general anesthesia, especially in short-term general anesthesia, respiratory management and emergency airway opening during rescue.

The SLIPA-2G laryngeal mask airway is on the basis of SLIPA design, a gastric drainage channel is added so as to insert the gastric tube through the airway.
Made of softer and more flexible medical polymer materials, it makes the patients more comfortable.

The double lumen SLIPA-3G laryngeal mask airway adopts the third generation self sealing design, has four kinds of backflow aspiration mechanism, and has its own dental pad, which can be used directly without inflation. At the same time, it can greatly reduce the risk of human injury

The silicone double lumen laryngeal mask airway is made of imported medical grade silicone with pink color cuff. The product has the advantages of easy placement, good sealing, resilience and so on. It can well adapt to the changes of body position, especially suitable for high airway sealing pressure surgery such as laparoscopy. Meanwhile, the gastric drainage channel can be placed into the stomach tube to prevent gastric inflation and back flow from aspiration.

Laryngeal mask has many advantages:
(1) it is easy to use and can quickly establish artificial airway;
(2) The success rate of placement was high. The success rate of untrained medical staff was 87%, and the total success rate was 99.81%;
(3) Reliable ventilation;
(4) Avoid injury of throat and tracheal mucosa;
(5) Small stimulation and cardiovascular response;
(6) It can be used for first aid.

The SLIPA laryngeal mask airway is made of patented design, it is equipped with unique reflux collection chamber which is able to collect reflux liquid up to 50ml maximum. With patented design, the shape of SLIPA is completely consistent with the anatomical structure of human throat. The sealing pressure reaches more than 25cm H₂O if the size is selected correctly.

A laryngeal mask airway (LMA) — also known as laryngeal mask— is a medical device that keeps a patient's airway open during anaesthesia or unconsciousness. It is a type of supraglottic airway. A laryngeal mask is composed of an airway tube that connects to an elliptical mask with a cuff which is inserted through the patient's mouth, down the windpipe, and once deployed forms an airtight seal on top the glottis (unlike tracheal tubes which pass through the glottis) allowing a secure airway to be managed by a health care provider. Reusable Reinforced LMA is equipped with a stainless steel spring to prevent the airway to be kinked during insertion.

Fushan suction connecting tube is used to divert the fluid in the fluid. It is used with a negative pressure drainage device. One end is connected to the machine and the other end is connected to the suction tube. In addition, a wide range of sizes and configurations allow for efficient and cost-effective setup.