INJECTION NEEDLE AND METHOD FOR USING THEREOF IN SUBCUTANEOUS INJECTIONS Russian patent published in 2010 - IPC A61M5/32 A61K31/45 A61K33/14 A61P43/00 A61B8/08 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to devices and methods of subcutaneous injections of medical products. An injection needle with the pointed working end with its point presenting a surface generated with an exponential of rotation about the longitudinal axis, interfaced with a cylindrical body, lies on the longitudinal axis of the needle with a central passage and round-edged side holes. The total sectional area of the holes is equal to the sectional area of the needle passage. The holes are double paired, opposed and inclined 45° to the longitudinal axis of the needle. The row displacement is 90°. The external surface of the needle represents smooth longitudinal diametrical corrugations with flute depth that makes 0.2 of the external diametre of the needle, completely coated with a layer of porous gelatine with the uniform external diametre of the layer. The layer thickness in the thinnest places is 0.2 of the external diametre of the needle. The method of subcutaneous injection includes alcohol preparation of a desired skin area. This skin area is folded with the left hand. The fold shall be triangular with its base downwards. The second finger of the right hand holds the injection needle, the fifth finger of the right hand holds the piston, and the other fingers of the right hand hold the cylinder. The needle is quickly inserted into the triangle base at the angle 45° at the depth 1-2 cm between the first and the second fingers of the left hand. The solution is slowly injected, and the needle is quickly removed. Then the injection point is wiped with alcohol with pressing thereto a sterile alcohol-wetted cottonwool tampon for a short time. After alcohol preparation, the skin area is heated up to +42°C. Before folding the skin, the fingers are heated to +42°C. Immediately prior to the injection the needle is dipped in 96° ethyl alcohol at temperature lower than 30°C. The chosen medical product is dissolved with an equal volume of 0.9% sodium chloride and heated to +42°C and injected in amount 0.5 ml and less. Alcohol for tampon wetting is heated to +42°C. The tampon is pressed until complete ultrasound-aided exsanguination of tissues within medicinal infiltrate with applying gel and the sensor heated to +42°C, during 6 minutes. If introduction of greater volume is needed, new injections are made, at least 1 cm away from each other.

EFFECT: invention prevents postinjection bruises with lowered blood coagulation ensured by accelerated occlusion of the involved vessels.

2 cl, 2 ex