Abstract: Disclosed is a copper-niobium alloy for a medical biopsy puncture needle. A needle core and/or needle tube of the puncture needle are/is made of the copper-niobium alloy. The copper-chromium alloy includes the following components by mass: 5?Nb?15 and the balance of Cu. A copper alloy with designed components is obtained by combining a diamagnetic material Cu with paramagnetic Nb, and compared with existing medical stainless steel and titanium alloy, the copper alloy has greatly reduced magnetic susceptibility, and specifically, the artifact area and volume are also significantly reduced. In addition, the blank of use of the copper alloy in medical biopsy paracentesis is filled.

Abstract: Methods and apparatuses for reuse registration data in image guided surgery. One embodiment includes: receiving input data to register image data with a patient; generating registration data based on the input data; and recording the registration data. Another embodiment includes: performing a search for registration data for registering image data with a patient in an image guided process; response to a determination to perform registration after the search, receiving input data to register the image data with the patient, generating registration data based on the input data, and recording the registration data; and response to a determination to use the registration data found in the search, using the registration data found in the search in the image guided process.