FIELD: medical equipment.
SUBSTANCE: group of inventions relates to medical equipment, namely to an intravenous catheter assembly and a protection node of a needle for the intravenous catheter assembly used for the access to patient’s vein, in particular for supplying fluid media to a patient or for removing fluid medium, especially blood. The protection node of the needle for the intravenous catheter assembly, containing a catheter sleeve, a hollow tubular catheter, and a needle, contains a case for receiving the needle passing through it with a distal end and a proximal end, while the case is made to be connected at its distal end to the proximal end of the catheter sleeve; and the needle protection located in the case. The catheter sleeve has a distal end and a proximal end with an external part. The hollow tubular catheter is connected with its proximal end to the distal end of the catheter sleeve. The needle has a rod and a pointed tip. The needle protection contains a needle catcher, an elastic lever and a connecting foot. The needle catcher is made with the possibility of movement between the readiness position, in which the needle catcher is held on one side of the needle rod passing through the case, and the protected position, in which the needle catcher locks the pointed tip of the needle inside the case. The elastic lever displaces the needle catcher to the protected position, while the elastic lever rests on the inner case wall to forcedly move the needle catcher to the protected position, and the elastic lever is pivotally connected on its first end to the needle catcher. In the readiness position, the connecting foot connects the case to the proximal end of the catheter sleeve, and the movement of the needle catcher from the readiness position to the protected position makes the connecting foot disconnect the case from the catheter sleeve, while the connecting foot is connected on its first end to the needle catcher. The intravenous catheter assembly contains the above-described protection node of the needle.
EFFECT: group of inventions provides for an improved control of infusion and removal of fluid media to and from the patient via the catheter.
9 cl, 8 dwg
