A micro catheter is a thin tube that is used to access the interior of small blood vessels and other areas of the body. It is a narrow tube, with an external diameter that is smaller than 1 millimeter. Micro catheters are designed to be as flexible as possible in order to reach their target area without causing damage to surrounding structures.
The structure of a micro catheter consists of an outer sheath made from medical-grade silicone or polyurethane material. This sheath surrounds an inner core made from plastic or stainless steel materials, which are chosen based on their compatibility with bodily fluids and tissues. The core can also be made from other materials such as glass or ceramic in order to provide additional strength when needed for special procedures or environments.
The outer sheath contains one or more lumens (openings) through which fluids may pass into or out of the vessel being accessed by this device; in some cases multiple lumens may be necessary in order to allow for multiple types of fluids being pumped through at one time during use (such as blood samples collected during surgery). The lumens are covered by an outer coating of hydrophobic material that helps prevent bacterial contamination while still allowing