CATHETER NEEDLE Russian patent published in 2003 - IPC

FIELD: medical industry, applicable in medicine for injections, intravenous injection of medicinal preparations. SUBSTANCE: the needle has a tube with a central hole and a point. The point is formed by intersection of the plane of the main bevel cut, flat faces of the additional cuts and meeting at the point of the side cuts, which are symmetrical relative to the plane of symmetry of the main bevel cut. The additional cuts are made in the form of two faces oriented at an angle of 4 deg.+-30' to the tube generating line. The line of intersection of the additional cuts is positioned in the plane of symmetry of the main bevel cut of the needle. The symmetrical side cuts form an angle of 75+-7 deg. Between them, and the angle of the main bevel cut equals 25+-6 deg. The edge of the central hole located on the plane of the main bevel cut in the zone moved away from the point is blunted. EFFECT: improved design. 4 dwg