Reason/Issue |
Siemens has identified a screw connection in the ceiling mount consisting of 12 screws might not have been attached and fastened according to the quality standards for a specific number of Artis zee/Q Biplane systems. The connection is located within the rotation unit of the second plane. If such screws are not fully tightened in accordance with the specified values, single screws between the C-arm structure of the second plane and its ceiling carriage may become loose. If various screws become loosened over time, this may lead to a recognisable wobble of the C-arm, especially during fast movements. This may result in an acquired image/3D which does not allow for clinical appraisal, resulting in additional x-ray exposure for a patient. There is also the remote possibility that if, after an extended time period, all screws become loosened, parts of the second plane mechanics may become detached from the ceiling carriage of the system, and could hurt the patient and/or personnel. |