An insulin pen is a diabetic insulin injection device. It is said to be safer and more convenient than a syringe. It is being increasingly used around the world.
How an insulin pen works? How to give an insulin injection with an insulin pen?
An insulin pen consists of a needle, a cartridge and the outer structure, which is shaped like a pen. To use a pen, first load the insulin cartridge. Then attach the needle to the pen. Remove any air in the needle. Turn the knob or dial at the end of the pen to the required amount of insulin. Insert the needle into your skin and press the delivery button. Wait for five seconds and remove.
Types of insulin pens
There are two types of insulin pens
Pens with replaceable cartridges: These pens are re-usable. The cartridge needs to be replaced after the insulin in it gets exhausted. Such pens allow flexibility in usage amount and combination of insulin.
Pre-filled pens: These pens come with a pre-filled amount and combination of insulin. The whole pen is thrown away after use. These deny the user flexibility in insulin amount and combination.
All pens use replaceable needles. Most pens use special pen needles, which are thin and short.
The needles need to be replaced after each usage to prevent air from entering the cartridges and to prevent insulin from leaking out.
Advantages of insulin pens
Less fussy than syringes.
Less painful.
Offer more accuracy of dosage.
Can be easily used by people who have visual or physical impairments.
Can be used without attracting attention in public places.
Disadvantages of insulin pens
Pens do not allow users to mix different types of insulins.
Companies manufacturing insulin pens
Many companies are manufacturing insulin pens. Pens with replaceable cartridges are made by Novo Nordisk, Owen Mumford, and Disetronic. Prefilled pens are sold by insulin makers Eli Lilly, Novo Nordisk, and Aventis.
Future of Insulin Pens
Insulin pens have traditionally been shaped like pens, hence the name. But companies are manufacturing products which perform the same functions but are shaped differently. Many other innovations and features are in the pipeline.
