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A labelled diagram of the major arteries and veins of the human body. Near-infrared vein finder are medical devices used to try to increase the ability of healthcare providers to see veins. [1] They use near-infrared light reflection to create a map of the veins. [1] The received imagery is then either displayed on a screen or projected back ...
t. e. Vein matching, also called vascular technology, [1] is a technique of biometric identification through the analysis of the patterns of blood vessels visible from the surface of the skin. [2] Though used by the Federal Bureau of Investigation and the Central Intelligence Agency, [3] this method of identification is still in development and ...
Venous access is any method used to access the bloodstream through the veins, either to administer intravenous therapy (e.g. medication, fluid), parenteral nutrition, to obtain blood for analysis, or to provide an access point for blood-based treatments such as dialysis or apheresis. Access is most commonly achieved via the Seldinger technique ...
The location of the vein is identified by landmarks or with the use of a small ultrasound device. A hollow needle is advanced through the skin until blood is aspirated. The color of the blood and the rate of its flow help distinguish it from arterial blood (suggesting that an artery has been accidentally punctured). Within North America and ...
A winged infusion set —also known as "butterfly" or "scalp vein" set—is a device specialized for venipuncture: i.e. for accessing a superficial vein or artery for either intravenous injection or phlebotomy. It consists, from front to rear, of a hypodermic needle, two bilateral flexible "wings", flexible small-bore transparent tubing (often ...
Port (medicine) Portal system. Port-a-Cath with needle assembly inserted. In medicine, a port is a small appliance that is installed beneath the skin. A catheter (plastic tube) connects the port to a vein. Under the skin, the port has a septum (a silicone membrane) through which drugs can be injected and blood samples can be drawn many times ...
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