What are cannulas?

Cannulas are medical disposable devices, inserted into the body, often, for the evacuation or conveyance of fluid or insertion of other surgical devices into the body system. The Cannulae allows the piercing of the body to get into the intended space and as such, a cannula can be utilized for circumscribing the external and internal layers of a therapeutic needle in this manner expanding the approach of the needle to the veins.


The cannula is fabricated in various hues, contingent on the span of the tube. The size required relies on what is to be imbued. These incorporate crystalloids, colloids, meds and blood items. The rate at which the piercing is to run can likewise be controlled and checked. Another determinant that decides the extent of the cannula is the patient’s well-being.

Intravenous cannulation is the strategy or system in which a cannula is embedded into the vein to give venous exercises. Venous exercises control inspecting of blood and additionally checking of medicines, liquids, chemotherapy, parenteral sustenance, and blood parts.

Types of Intravenous Cannula

An intravenous cannula (IV Cannula) is of two various kinds.

The Venous Cannula is typically inserted into the/a vein, which the purpose of controlling or organization of intravenous gasses or liquids with the aim of gathering blood tests and checking of the pharmaceuticals in the body.

The Blood Vessel Cannula is typically inserted into a blood supply route, which is utilized amid consequential surgeries and in primary care zones primarily to quantify circulatory strain and to peruse general blood tests. The inclusion of an IV cannula incorporates the integration of a tubular structure into the patient’s vein with the goal that mixtures can be embedded directly into the patient’s circulatory system.

The Nasal Cannula, on the other hand, is a piece of plastic tubing that runs from the nose and is used to administer oxygen to a patient that is in need of it as conditions may warrant.


The IV cannula is used in several Medical and Non-medical fields, and it serves several purposes for which it is designed for.

Some of its uses include:

Veterinary Usage of the Cannula

Most times in emergency procedure, a cannula is utilized to ease pressure and bloating in cattle and sheep with ruminal tympany. Cannulas are tools used in the insertion of the VeriChip.

Aesthetic medicine and anti-ageing

A blunt-tip cannula or micro-cannula is a pretty small tube with a sharp-less verge and an extrusion port or pore near the tip which is consciously fabricated for a traumatic subdermal injection of fluids or gels used in aesthetic medicine.

The cannula can be employed depending on the size of the internal diameter, for the injection of cosmetic wrinkle fillers like hyaluronic acid, poly-L-lactic acid, collagen, CaHA, etc., or for the transfer of fat. The reason behind it usage in aesthetic medicine, is that they are less painful, less swelling, lesser risk of bruising, and a better safety profile. Accidental intravascular injections are more difficult with blunt-tip microcannulas, decreasing the risk of skin necrosis, ulcers, and embolization to the retinal artery which can result in blindness.

Cannulas are used in body piercing when using a standard IV needle and for inserting hooks for suspensions. It is also used to determine the effect of a particular chemical on a specific cell in biological research.