Urodynamic Catheters & Transducers Nexam Pro User Manual
63
(P
ura
). The rectal catheter has one sensor for measuring the abdominal
pressure (P
abd
).
Figure 3.6
Example air-charged catheter
Figure 3.7
Air-charged pressure transducer
The catheters are connected to the WPU-L4 or Luna module via air-charged
pressure transducers. The transducers must be left in the OPEN position.
It is also important to notice that caps are placed on the catheter
to protect against any moisture infiltration. Moisture penetrating into the
catheter will cause sensing errors, usually high pressures.
The procedure to prepare the catheters and transducers is as follows:
▪
Connect the pressure transducer cables to the WPU module or Luna, as
follows:
Color pressure transducer
WPU-L4
or Luna
Yellow
P1 = P
ves
(vesical/bladder pressure)
Blue
P2 = P
abd
(abdominal pressure)
Green
P3 = P
ura
(urethral pressure)
▪
Be sure to leave the transducers in the OPEN position.
▪
Disinfect the genital area.
▪
Insert the bladder catheter (in a female patient 12
–15 cm, in a male patient
25
–30 cm). Position the vesical sensor (P
ves
) and the urethral sensor (P
ura
)
both in the bladder.
▪
Remove the caps from the bladder catheter. Be sure that no moisture is
getting into the catheter.
▪
Connect the bladder catheter to the yellow (P
ves
) pressure transducer and if
applicable to the green (P
ura
) pressure transducer (tighten securely!). Be
sure to connect in the OPEN position.
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