Copper-niobium alloy for medical biopsy puncture needle

Abstract

The invention discloses a copper-niobium alloy for a medical biopsy puncture needle. The needle core and / or needle tube of the puncture needle is made of a copper-niobium alloy, and the mass composition of the copper-niobium alloy is 5≤Nb≤15, and the remaining The amount of Cu. In the present invention, a copper alloy with a designed composition is obtained by combining the diamagnetic material Cu with paramagnetic Nb, and then compared with the current medical stainless steel and titanium alloy, not only the value of the magnetic susceptibility is greatly reduced, but also the artifact area and volume There is also a marked reduction in . At the same time, it also makes up for the gap in the application of copper alloys in medical biopsy puncture.

Description

technical field [0001] The invention belongs to the field of medical equipment, and mainly relates to the technical field of tissue puncture such as lumbar puncture in biopsy operation, extraction of bone marrow fluid in bone marrow puncture operation, and specifically the application of copper-niobium alloy in biopsy puncture needles. Background technique [0002] In recent years, with the development of magnetic resonance imaging (MRI) detection technology and equipment, it has played an important role in medical fields such as diagnostics and radiology, and has been widely used in operations such as orthopedics and neurosurgery. Compared with traditional imaging techniques such as radiography and computed tomography (CT), it has superior soft tissue contrast, is not affected by ionizing radiation, and can acquire information on any plane through 3D imaging. [0003] However, the existence of an external magnetic field will resonate metals with magnetic properties in magne...

AI Technical Summary

Problems solved by technology

The existence of artifacts will interfere with intraoperative treatment and postoperative diagnosis, and in severe cases, it will cause misjudgment of surgery, which will have adverse effects on doctors and patients

Therefore, it is very important to develop alloys with low magnetic susceptibility. By reducing the angle of magnetic susceptibility difference between metal and human tissue, combined with the consideration of puncture needle alloy materials in the domestic market, it is finally found that copper alloy has a certain effect in reducing metal magnetic susceptibility. value, the domestic Institute of Metal Research, Chinese Academy of Sciences has reported research on silicon brass, but the current research on the application of copper alloys in MRI is still in its early stages

Images