What is the cool "oil" applied when doing B-ultrasound examination?

B I guess everyone has done it. They usually do B-ultrasound during physical examination. Lying in bed, the doctor will first pour something cold at the position where the B-ultrasound is to be done, and it will feel a little cold in an instant. When they are finished, they will find that kind of thing particularly sticky and can't be wiped off.

What the hell is this? Let's talk about it today

In fact, the doctor gave this mucus a nice name: "coupling agent". Why use this thing?

First: lubrication.

The coupling agent has a good lubricating effect, so that the B-ultrasound probe can easily move on the skin surface, and doctors can easily see the problems of various parts of the patient's body. And the coupling agent is not easy to dry, which provides convenient conditions for doctors to check.

Second: perfect fit with the skin.

It is precisely because of the coupling agent that the probe can fit perfectly with the skin. Because the skin on our body surface is uneven, the probe is easily disturbed by gas during inspection. At this time, the coupling agent can block the interference of air on ultrasonic inspection, making it easier for doctors to capture clear images.

Again: sterilization.

Sometimes I think, there are so many patients outside the B-ultrasound room, one after another, but there are only a few B-ultrasound machines, won't it cause cross infection? In fact, my worry is unnecessary.

In addition to no irritation to skin, the coupling agent will not pollute clothes and is easy to clean. And has mild bacteriostatic and antibacterial effects, can disinfect the probe and the skin to a certain extent, and effectively avoid cross infection among patients.

In this way, there will be no doubt about that sticky thing.