You are deliberately based on the following definition:
Medical devices are instruments, equipment, apparatus, in vitro diagnostic reagents and calibrators, materials, and other similar or related items used directly or indirectly in the human body, including the required computer software.
Utility is obtained primarily by physical and other means, not by pharmacological, immunological or metabolic means, or is involved but only in an ancillary manner.
The purpose is the diagnosis, prevention, monitoring, treatment or alleviation of disease; the diagnosis, monitoring, treatment, alleviation or functional compensation of injury; the examination, substitution, modulation or support of physiological structures or processes; the support or maintenance of life; the control of pregnancy; and the provision of information for medical or diagnostic purposes through the examination of specimens from the human body.
The tattoo machine is the main tool used by cosmetologists to tattoo eyebrows. It is mainly used for eyebrow tattooing.
Features
1, tattoo machine running noise
Tattoo machine if a lot of noise, will make the beautician and the customer to produce uneasy psychology, especially the customer, will produce fear, resulting in nervousness, skin tightening phenomenon, so that the color material is not easy to color, and produce a tingling feeling. So the noise size is the key to choose the eyebrow tattoo machine, generally running eyebrow tattoo machine is about one meter away from the customer, and the customer does not feel the noise as a principle, otherwise belongs to the noise is too large.
2, eyebrow tattoo machine speed
Tattoo eyebrow machine speed relationship between the customer's feeling of pain, the faster the speed, the smaller the pain, the market is now generally popular speed 3-5 gears, the latest development of a new generation of eyebrow tattoo machine can be infinitely adjustable, the customer can hardly feel the pain. Test, the eyebrow tattoo machine on the needle to start, back and forth on the hard paper needle, intensive rattling for speed, otherwise slower.
3, needle pressure stability and safety needle pressure
Select eyebrow tattoo machine whether the needle pressure is stable, the general use of visual method; out of the length of the needle to remain stable, can not have a long and short feeling. If the tip of the needle running into a fan, indicating that the needle pressure is not stable, safe needle pressure refers to the ability to control the tip of the needle into the skin to a certain depth, to prevent the operator from improper use of the tip of the needle too deep into the skin.
4, body design
Brow tattoo machine is a hand-held tool, in order to facilitate the flexible use of cosmetologists, body design is very important, the design must be fine, dexterous, the center of gravity should be stabilized in the central position. Most of the popular designs on the market use a straight pen type design, which can be adjusted 365 degrees, and is easy to use for a long time without fatigue.
5, service life
The service life of the eyebrow tattoo machine, related to the economic benefits of the beautician, eyebrow tattoo machine noise level, whether the speed is stable. Whether or not there is a device to prevent the color material backflow, etc. will affect the life of the eyebrow tattoo machine.