What is the purpose of intravenous infusion

Infusion is a very popular treatment method in modern medicine. The main principle is to use the infusion method to inject drugs into the body, thereby achieving the effect of eliminating disease factors in the body. The infusion method is relatively simple and only requires simple operation. The infusion is generally done through human veins, which many people do not know because the human body is divided into arteries and veins, and infusion often only chooses veins. This confuses many people. So, what is the purpose of intravenous infusion and how to infuse? Let’s take a look at the explanation below. I hope everyone can understand it.

1. Purpose of intravenous infusion:

1. Replenish blood volume, improve microcirculation, and maintain blood pressure.

2. Correct water and electrolyte imbalance and maintain acid-base balance.

3. Replenish nutrition and supply energy.

4.Introduce medicine to treat diseases.

2. Main methods:

1. Closed infusion method

The closed infusion method uses the original closed bottle cannula for infusion. It is easy to operate, has less chance of contamination, and is widely used in clinical practice.

2. Open infusion method

Open infusion method: This method can flexibly change the type and quantity of infusion, and add various drugs as needed at any time. This method is often used for critically ill patients, surgical patients and sick children, but it is easy to be contaminated, so the aseptic technical operation requirements should be strictly followed.

3. Intravenous indwelling needle

Intravenous indwelling needles are suitable for long-term intravenous infusion, the elderly, the exhausted, and those with difficulty in vascular puncture. It consists of two parts: the needle head and the heparin cap. The needle head: a soft silicone catheter connected to a hard plastic blood return chamber, with a stainless steel wire guide needle inside, and the guide needle tip protruding from the soft silicone catheter. The needle head heparin part: there is a hard plastic piston at the front end and a rubber cap at the rear end. The inner cavity of the heparin cap has a hollow channel that can hold heparin.

4. Clavicle spur intubation

Subclavian vein puncture and catheterization method The subclavian vein is located below the clavicle. This vein is superficial and thick, as thick as a thumb in an adult. It has a fast blood flow and is often in a filled state, so it is easy to puncture. Puncture site: 0.5-1 cm away from the apex on the bisector of the angle formed by the lateral edge of the sternocleidomastoid muscle and the clavicle.