Lancing devices are medical devices used to prick the skin to obtain a small blood sample. Lancing devices are most commonly used by people with diabetes to test their blood sugar levels, but they can also be used to collect blood samples for other medical tests, such as cholesterol testing and blood typing.

Lancing devices come in a variety of shapes and sizes, but they all work in the same basic way. To use a lancing device, you first insert a lancet, which is a small, sharp needle, into the device. You then set the depth of the lancet puncture, which is usually adjustable. Once the depth is set, you press the lancing device against your skin and release the button. The lancet will then prick your skin and collect a small blood sample.

Lancing devices are a safe and effective way to collect blood samples. They are also relatively painless, especially when compared to traditional finger pricks. Lancing devices are also easy to use and can be used by people of all ages.