Abstract: A single-leaf X-ray collimator comprises at least one collimating leaf member having at least one collimating aperture. The collimating leaf member is adapted to be configured to rotate about at least one of a vertical or horizontal plane. The collimator provides elliptical collimation and hence improved dosage efficiency.

Abstract: An anti-collision method and apparatus for use with a C-arm x-ray imaging machine to prevent damage to the imaging apparatus and injury to patients and health care workers includes a load cell, a differential buffer and integrator, an analog to digital converter, and a microcontroller controlling the motor drive. The present invention also provides a method for controlling the apparatus via a microcontroller and includes the steps of determining whether an up/down switch is actuated, reading and comparing a value with a tabulated value, halting the C-arm if the difference between the tabulated value and the recorded value exceeds a threshold value and reversing the apparatus.

Abstract: An anti-collision method and apparatus for use with a C-arm x-ray imaging machine to prevent damage to the imaging apparatus and injury to patients and health care workers includes a load cell, a differential buffer and integrator, an analog to digital converter, and a microcontroller controlling the motor drive. The present invention also provides a method for controlling the apparatus via a microcontroller and includes the steps of determining whether an up/down switch is actuated, reading and comparing a value with a tabulated value, halting the C-arm if the difference between the tabulated value and the recorded value exceeds a threshold value and reversing the apparatus.