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PIVOT SYSTEM FOR X-RAY ARM
| Project: |
Design a pivot and latching system for x-ray scanner arm.
Manufacture a prototype and conduct reliability testing. |
| Client: | GE Lunar Corporation |
GE Lunar contracted Sebring Design to design a pivoting arm for the DEXA scanner. DEXA is an ultracompact x-ray scanner featuring fast installation in limited office space. The "swing arm" retrofits to the existing fixed system and enables medical staff to rotate the upper scan arm out of the way while positioning a patient on the scanning table.
Sebring Design offered a simple solution with minimal moving parts based on a bearing that rotates the arm 90 degrees. A latching system locks the arm accurately in the 0 and 90 degree positions and ensures alignment of source and detector at the home position.
Sebring Design conducted reliability testing to cycle the swing arm through more than than 30,000 uses. As part of the "life test," we measured the load-bearing capability and position accuracy. In addition, we inspected for evidence of bearing wear and abuse to the locking system and internal cabling.
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