From the use of functional classification of the type of insulin pen
Reusable Insulin Pen: After refilling the refill, replace the refill and use the pen and the pen can be used for many years or even for life. At present in our country can buy this insulin pen.
Disposable insulin pen: some insulin pen is a one-time use, after use, even pen with the core together toss, replace the new pen. This type of insulin pen is simple hygienic. At present, China's insulin pen less.
  advantage
1, convenient, remove the sick with a syringe in the insulin bottle to extract the cumbersome process of insulin. Patients go out no longer with syringes, insulin bottles, disinfectant cotton and a lot of items, but only with a small "pen" can be.
2, insulin injection process is more simple, hidden, can be removed from the public in the public injection of insulin embarrassment. Some people even in the table below with a hand to complete the insulin injection, and the table was unaware of the people.
3, for the poor vision and even blindness of the patients injected with insulin to facilitate. We know that the poor eyesight can not use the syringe to extract insulin and inject it. As the insulin pen is simple to operate, and the dose setting is a clear "click" sound, so even if the vision is not good, after training can also be used insulin pen injection.
4, insulin dose is more accurate, you can 1 unit of insulin dose adjustment. While the syringe is generally the smallest to 2 units.
5, the basic painless, the needle than the needle with a special insulin syringe more thin, and some patients think that the basic no pain.
How to use it correctly
Check and install
Before the installation should be carefully checked whether the refill is intact, with or without cracks; refill in the liquid color, traits with or without abnormalities, whether the floc or crystal precipitation; refills whether the validity period. After correcting, twist the pen holder, insert the cartridge, with 75% alcohol disinfecting the cartridge front rubber film, remove the needle, open the package, clockwise tighten the needle, the installation is completed. Remove the needle protection cap when injecting.
exhaust
New replacement of the refill, as the drive rod and the end of the refill is not close enough, if not exhaust on the injection, the injection dose will be less 4 to 6 units. The pen vertical erect, so that the bubble in the cartridge gathered in the upper part of the dose adjustment knob to "2 units", and then press the injection key to zero, if a drop of insulin from the needle overflow, that drive rod Has been fully contact with the refill and the pen inside the bubble has been completely exhausted. If there is no liquid discharge, repeat this operation until a drop of insulin is discharged. Note: This operation is performed each time a new refill and needle are installed.
Injection method
Before each injection, check to confirm that there is sufficient dose of insulin, turn the dose adjustment knob, transferred to the required number of injection units. If the injection of insulin as a suspension (such as the effect of insulin or premixed insulin), the insulin pen should be up and down about 10 times, until the liquid becomes a uniform white suspension so far, to prevent the concentration of the drug caused by uneven Poor blood sugar control. Fast-acting insulin (such as norisoride), short-acting insulin (such as Novolin R) and insulin glargine (when it comes) are clear solutions that can be injected directly.
Specific injection method: the injection site of conventional disinfection, left hand pinching the injection site of the skin, right hand holding the pen by 45 degrees angle (thin person) or vertical (fat people) fast needle, right thumb press the injection button slowly push the liquid, After the injection of the needle in the subcutaneous stay for 6 seconds, and then along the direction of the needle quickly pull out the needle, with a cotton swab to press the needle at 3O seconds. Cover the needle cap and end the injection.