SURGICAL NEEDLE Russian patent published in 2019 - IPC A61B17/06 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to a surgical surgical needle having a triangular cross-section used for stitching biomedical tissue. Medical surgical needle having a triangular cross-section made from austenitic stainless steel having a fibrous structure comprises two first skewed surfaces and two second skewed surfaces. Two first skewed surfaces are ground and form an edge between them and a first lower surface located between two first bevelled surfaces and ground. Two second skewed surfaces are polished and form an edge between them on the front end side of the first bevelled surfaces and a second lower surface located between two second bevelled surfaces and ground. Traces of grinding of the first skewed surfaces are formed along the length of the medical surgical needle, and traces of grinding of the second skewed surfaces and the first and second lower surfaces are formed across the length of the medical surgical needle. Edge is formed containing first cutting blade, which is formed by intersection of two first skewed surfaces, edge part, which is formed on body side from first cutting blade to base tail part of medical surgical needle without intersection of two first skewed surfaces, and second cutting blade, which is formed by two second bevelled surfaces, ground, intersecting and containing between themselves first cutting blade, on the side of front end from first cutting blade. First lower surface and the second lower surface are formed in the form of continuous curved surfaces with a skew to approach to the first cutting blade and the second cutting blade. Front end of second cutting blade is located with deviation from center of medical surgical needle and from central side of peripheral surface of medical surgical needle.

EFFECT: invention is characterized by creation of a medical surgical needle, which allows higher strength of the front end part, on which a tip is formed, and lower resistance when piercing through the tissue.

1 cl, 2 dwg