Syringe painless laser

A new technique that uses lasers makes the drug become tiny rays, when shot on the skin will help the innocent to feel pain, according to Health 24.

A team of scientists in South Korea has built a laser beam device to help painless injection.

In the future, the injection will not hurt anymore

Dermatologists often use this laser needle, especially for facial aesthetics, said Jack Yoh, a professor of space and machinery at Seoul National University, who is also a neuroscientist. headed the research team, developing the device.

This laser system is attached to a liquid-containing body, which adds a small water-holding niche that acts as a conduit. These two types of liquid are separated by a movable partition. When activated, the system generates steam in the conductor.

The pressure of the bubbles vaporizes the septum between the two fluids, causing the shot to come out in a microscopic form, a diameter just larger than the diameter of a hair.

The pressure of the rays is higher than the tension of the skin, which makes the skin penetrate deep into the skin smoothly.

Swine skin tests show that the drug can penetrate several millimeters below the skin without affecting the tissues.

Professor Yoh said: 'This technique can be most easily applied by injecting a small amount of drops into many parts of the body.'

The work is published by Optics Letters of the American Academy of Neurology.