Choosing a cannula may seem like a very simple matter, but in fact it is not. Well, there are many models of such products on the market that differ from each other in some respects. In order to choose the right cannula , it is necessary to adjust its size to the patient’s age or weight. However, there are many more such requirements and factors. They are discussed below. Why is it so important to adjust the right cannula to the patient? About it in the text below!
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What is the nature of a cannula?
One of the basic medical devices that is used on a very large scale is the cannula. It is he who is used to provide access to the veins of patients of medical institutions. Each drip, intravenous fluids and other medications get directly into the veins thanks to the cannula. To be able to use the cannula safelyit should be properly inserted in the patient’s vein beforehand. Knowledge is necessary for this, as well as certain skills. It is for this reason that qualified nurses or doctors are behind the insertion of cannula, not ordinary people. It is even forbidden to cram the cannulas on your own, as it may endanger your health. Placing the cannula in the vein allows you to use the vein entry several times without the need to repeatedly prick the patient. It is therefore a perfect solution for both parties.
Each cannula is constructed in the same way, and it consists of:
- plastic cap.
To maintain sterility, each canister is of course packed in a blister and a box. It must be sterile and clean at the time of insertion of the cannula. There are several ways to insert a cannula, and the differences between them are based on the techniques of inserting the needle into a vein. Improper placement of the cannula results in unpleasant ailments, and it can be a hematoma, phlebitis or local inflammation of the skin. This is why it is so important to fit and place a cannula tailored to the patient.
This is done on the basis of:
- patient’s age – for children there are thinner and shorter cannulas than for adults,
- the amount of fluids needed for introduction.
There are various types of cannulas available on the medical market. First of all, they differ in size and length. You can choose from very thin and very thick cannulas, which can be adjusted to the requirements of a given patient.
How long can a cannula be kept in a vein ?
It is generally accepted that the cannula should not be in the vein for more than 5-7 days. Of course, there are cases where it is kept a little shorter or longer, but it should be borne in mind that a cannula left in the vein for too long may result in inflammation.