IMPROVEMENTS CONCERNED INTRODUCTION OF INTRAVENOUS NEEDLE OR CANNULATION Russian patent published in 2011 - IPC A61M5/42 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine. A device for facilitating introduction of a needle or a cannula in a patient's vein according to the first version comprises a means for arrangement of a low pressure local zone on a patient's skin surface to promote expansion of an underlying vein portion, means for facilitating introduction of the needle or the cannula in the expanded vein portion and a bandage for the patient. The device for facilitating introduction of the needle or the cannula in the patient's vein according to the second version comprises the means for arrangement of the low pressure local zone on the patient's skin surface to promote expansion of the underlying vein portion, means for facilitating introduction of the needle or the cannula in the expanded vein portion. The means for arrangement of the low pressure zone adjoining to the skin surface contains a dome elastic deformable coating containing a peripheral flange. A method of introduction of the needle or the cannula in the vein contains the stages consisting in the fact that the local low pressure zone is arranged on the patient's skin surface to promote expansion of the underlying vein portion, and the needle or the cannula is introduced in the expanded vein portion; the method is implemented by the device according to any of the versions.

EFFECT: inventions enables intravenous cannulation when the use of a plait because of weak veins or inconvenient anatomic arrangement or for any other reasons is impossible or when any complicated situations - bad light, patient transportation etc - are present.

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