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Those using Peritron
in Clinical Research projects need to know its accuracy and
repeatability.
The new Peritron is
accurate to better than 1 cm H20 throughout the entire range.
With the previous model Peritron, for example, if the
reading was 100 then there was a 95% probability that the true
pressure is 100 and a 5% probability that it is 99 or
101.
The new Peritron measures to one decimal place (i.e. the scale is different) If it was compared in accuracy (on the same scale) with the old Peritron, it would be 100% accurate. In other words, it is
accurate to better than 1 cm H20 throughout the entire range.
To our knowledge Perit ron is the most accurate Perineometer currently
available.
In practice, the
force required to deform the sensor causes a slightly
reduced reading. Providing you 'zero' the reading after
insertion, the Peritron reading will be about two digits
lower than actual applied pressure. (This characteristic
affects every Perineometer in the world.) As the sensors are
precision mouldings they are all exactly the same and so
every reading you take will be about two digits short of the
actual pressure indicated. Most regard this discrepancy to
be meaningless in a clinical situation.
Collar
In clinical trials
it is important to eliminate operator-induced artifacts as
far as possible. For this reason we recommend the use of
collar cat 2011 that provides repeatable depth of insertion
with 100% certainty.
We are pleased to
provide the results of our laboratory testing on
request.
Inflation
Optional for Vaginal (not Anal) Sensors
Most people use the
vaginal sensors without inflation. However, a port is
provided in the Peritron connecting tube that allows the
sensor to be air-inflated by means of a syringe to provide a
larger, firmer surface.
A standard inflation
pressure of, say, 100 cm provides a constant base-line for
readings. The technique used is straight forward:
- Insert
sensor
- Inflate to
reading of 100
- Press button to
zero Peritron reading
- Have patient
contract .....
The anal sensor is
not intended for inflation.
Single or
Multi-Patient Sensors
For such a personal
item, most people prefer their own sensor. The modest cost
of these makes one-sensor-per-patient a viable clinical
policy.
Single-user sensors
require only a soap-and-water wash between uses.
Please refer to
Frequent
Questions
for more information.
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