EXTRACTION DEVICE FOR COLLECTING BLOOD SAMPLES, INCLUDING A CATHETER AND A SAFETY SYSTEM

摘要

The invention relates to an extraction device for collecting blood samples, including a catheter and a safety system, which device uses a flexible catheter instead of a metal cannula with sharp edges for the extraction of blood. The catheter is inserted through a traditional cannula which is then retracted once the catheter is in the vein, by means of a spring and lock mechanism, with the cannula being housed inside a rigid casing. Once retracted, the cannula remains immobile inside the rigid casing, preventing the device from being re-used. The device of the invention is advantageous in that it: (a) reduces or eliminates the use of a metal cannula with sharp edges that stays in the vein during the entire procedure; (b) uses a plastic catheter or cannula in order to extract the blood sample, which is more comfortable for the patient and is safer since the sharp pointed element is disabled; (c) has a safety system for medical personnel such as to prevent any additional punctures following the procedure; and (d) is easy to use.