op100

[OP100MIKE at AOL.COM]

Dr. Lam,

Thanks for your good questions on the OP100. Maybe I can provide some
insight. An Orthopantomograph does not require an emergency stop button,
because pressing any button during cassette movement will stop the cassette
rack. Your suggestion to always leave the cassette down would be fine, it
would make the OP100 positioning like other pans, but dismisses the
advantages of seeing the patient during positioning. We have a video
available, which helps teach positioning on problem patients with big
shoulders. One method is to manually depress the cassette down button with
big patients, while watching for a space problem, instead of using the
automatic down function. Usually shoulder contact might occur as the machine
rotates back to the start position, not so much when the cassette lowers on
the patients profile side. The magnification on the OP100 is 1.3, which is
greater than most, so the cassette is a little bit farther away from the
patient's face to start with, which minimizes shoulder space problems.

On the second issue cassettes, the rear cover has a slight radius to act as a
spring. This insures the ID window remains snug to the printer, to minimize
light leaks in bright daylight areas when used in the Ortho ID film flasher.

I hope this information helps, best regards,

Mike Palazzola
michael.palazzola at iimaging.com