Owandy One - 4.4 Acquisition of an image

EN
ONE – User manual Page 29/44
4.4 Acquisition of an image
4.4.1 Acquisition procedure
The image acquisition goes through several steps:
1. Before being able to acquire an image with the sensor, you need to start the computer to which it is
connected and start the imaging software. Check that the sensor toolbar or the sensor icon in the task bar
is green.
2. Program the different parameters (exposure time, etc.) on the X-ray generator (see “4.5 Exposure times”
for more information).
3. Cover the sensor with a hygienic protective sheath making sure to cover a sufficient length of cable.
4. A set of positioners is provided with the kit to place the sensor in the different parts of the mouth; their use
is recommended to ensure the sensor is positioned perpendicularly to the X-ray beam.
The sensor can also be positioned manually, maintained by the patient as with conventional film. This can
be necessary for children with a small oral cavity. Position the sensor in the mouth, behind the tooth of
which you want to acquire an image. If you do not use a positioner, a cotton roll can be helpful to position
the sensor parallel to the tooth.
Warning
ALWAYS use protective sheaths to cover the sensor, the part of the cable near to the sensor and the
positioner, if used.
Warning
ALWAYS keep (or ask the patient to keep) in place the protective sheath during the use.
Warning
Turn the sensitive surface of the sensor (the flat surface) towards the generator; if it is facing the other
way, the sensor will not be able to acquire images.
5. Position the generator so as to cover the whole sensitive area of the sensor. The paralleling technique is
strongly recommended and the use of positioners allows you to correctly place the generator thanks to the
aiming ring.
6. Activate the generator. The sensor toolbar turns yellow to indicate the treatment and transmission of the
acquired image. Once the image treated, it appears in the imaging software and the sensor toolbar turns
green allowing a new acquisition.
Warning
In case the sensor is used with intra oral system with low mA emission (i.e. hand held systems that
typically provide 2mA), it is necessary to position X-ray source as close as possible to the sensor, without
any extension and set the exposure time between the range 50ms and 500ms.
Without this setup, the dose is not enough to trigger the sensor and acquire the image.