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DGH 55B-INS-OMENG Rev: 3
7.
Probe Use and Indicators
The
Pachmate 2
’s removable probe contains a piezo-electric element within its transducer
housing (See section 6.3). This element creates an ultrasonic pulse (main bang) that is channeled
through the clear plastic cone and focused to the point of measurement. The pulse exits the cone
and creates a return signal (echo) as it passes through the cornea. The piezo electric element
receives the return signal (echo), and the
Pachmate 2
analyzes the magnitude of the return signal
(echo) in order to calculate corneal thickness.
Correct use and maintenance of the probe is essential for collecting accurate measurements. The
operator must ensure that the probe is properly cleaned and connected so that the device can
perform a probe self-test.
The
Pachmate 2
automatically performs a self-test to check the functionality of the probe. This
test is done every time the device is put into
Measurement Mode
. Typically the operator will be
unaware that a self-test is occurring, however the operator must know how to react if an error
message is produced.
7.1
Inserting and Removing the probe
WARNING:
Twisting the probe connector while it is being inserted/removed from the
Pachmate 2
can damage both the probe and
Pachmate 2
.
7.1.1
The probe connector is designed to rotate, allowing the user to rotate the probe out of the
body of the device or position the probe at a comfortable angle for measurement.
!
