needle

What is a needle?

One of the most practical medical tools is the needle, without which it is not possible to inject drugs into the patient’s body. This type of medical equipment is not used alone and must be connected to syringes for use. Syringes are graduated cylindrical tubes on which this device is placed and through which fluids, blood or drugs are introduced into or removed from the body.
The most important feature of this medical equipment is its sharp and cutting tip. Because this part of the needle head is placed inside the body tissue, it is designed diagonally and sharply so as not to cause pain to patients.
This part of the syringes is made of stainless and hypoallergenic metal that does not cause any allergies in the body. Also, by sterilizing these devices through ethylene oxide gas, the entry of microbes and bacteria into the body will be reduced. Therefore, they are produced as disposable and in tight packaging so that external factors do not penetrate into them.

What are the components of the needle tips?

Every medical device that is produced has different components without which it would not be possible to use these devices. The needle tip is also one of these devices that has different components. This device consists of a protective cap that is placed on the needle to prevent it from dulling or hitting the sterile packaging.

As mentioned, these needles have sharp tips that quickly dull when they hit another object. Therefore, to maintain these devices, it is enough to put this cap on them. Another advantage
The needle tips themselves have a solid metal body with a sharp and cut tip that is placed on the syringes by means of a hub or ball installed at their end. In this way, medicinal liquids are transferred into the syringe through a channel located at their tip.
Silicone coatings that have anesthetic and antibacterial properties are used in the preparation of these products. Without these coatings, the quality of injections is very low and may also cause several complications for patients.
These medical devices are designed to be hollow, which, when placed in a vein, allow fluids to enter or exit through this route. By pulling the piston in the syringes, blood, drugs, and other fluids are drawn into the syringe and are expelled by pressing the piston.

How are needle tip sizes measured?

Like many other devices, these accessories also have their own sizes and ratings that classify them in this way. Depending on the application of these products, they have different diameters and lengths. To choose the right size of these devices, it is enough to choose a specific size of this equipment. A unit called gauge is used to measure the thickness of these devices.

This measurement shows that the higher the gauge of a needle, the less thick it is and the thinner the desired needle is. In fact, the diameter of the needles indicates their thickness. The length of the needles is also measured in millimeters and their types are classified accordingly.
Shorter needles are used for subcutaneous injections and longer needles for intramuscular injections. Depending on the patient’s skin type, the doctor or nurse uses needle tips with the appropriate thickness for injection.
Needles that are 26 to 28 gauge are used for injections into the outer skin. Needles with gauges of 26 to 30 are used for injections into muscles, and gauges of 19 to 27 are used for subcutaneous or intravenous injections.
To inject liquids with higher density and concentration into the body, a needle with a lower gauge or larger diameter is selected so that the liquids for injection can easily enter the syringe and do not bend or break inside the tissue.

What tests are performed to control the quality of needle tips?

One of the most important parts of the production of these devices is their quality control, which is carried out according to medical standards in the world. These tests include the following:

The cleanliness and cleanliness of the packaging of these products
Sterility testing
Checking the sharpness of the metal tip of these needles
Testing the resistance and hardness of the needles against pressure
Checking the type of glue used to attach the needle to the hub
Checking the resistance of the needle to corrosion in acidic and alkaline conditions
Testing for allergies or sensitivities
Needles are one of the most important medical devices used through syringes. These sharp and hollow devices insert liquids into or out of the syringe. Therefore, they are not used alone.