Case Of A Valve Preconnected To Asiphonx; Gravitiational Anti-Siphon Device - Sophysa POLARIS SPV-SX Notice D'emploi

F 4 : F R -P
IGURE LOW ATE RESSURE
This curve is obtained by varying the applied pressure for
each pressure setting and measuring the resulting flow
rate. The values are given disregarding the resistance of the
catheters.
Table of mean values at 10ml/h for each position setting of
®
the Polaris valve, and corresponding values at 20ml/h:
®
Polaris valve position setting
Position 1
Position 2
Position 3
Position 4
Position 5
The effects on the device operating pressure of changes in
the position of the patient and of sub-cutaneous pressure
are negligible.
6.2. CASE OF A VALVE PRECONNECTED TO A
®
SIPHONX GRAVITIATIONAL ANTI-SIPHON
DEVICE.
In this case, the position of the patient has a direct
influence on the system operating pressure (cf. Table
hereafter):
Table of Operating Pressures for Polaris
attached SiphonX
References SPV-140-SX
concerned SPVA-140-SX
0°
®
SiphonX
1 10
2 40
Available
pressures 3 80
(mmH O)
2
4 110
5 140
When the "Valve + SiphonX
®
SiphonX does not add any additional resistance to the
C SPV M
URVES FOR THE
at 10 ml/h at 20 ml/h
(mmH O) (mmH
2
30 35
70 75
110 115
150 160
200 225
®
valves with pre-
®
SPV-SX, SPVA-SX,
SPVB-SX
90° 0° 90°
210 30
240 70
280 110
310 150
340 200
®
" assembly is horizontal,
operating pressure of the Polaris
ODEL
therefore behaves like a valve on its own (cf. Figure 4).
When the "Valve + SiphonX
®
SiphonX
the Polaris
F 5 : F
IGURE
(SPV
WITH A PRE
O)
This curve is obtained by varying the applied pressure for
2
each pressure setting and measuring the resulting flow
rate.
The values are given disregarding the resistance of the
catheters.
Thus the pressures given on the labels of SPV‑SX model
correspond to the resistance of the "Valve + SiphonX
assembly.
The catheters add their own resistance to the shunt.
For all intermediate inclinations between the horizontal and
the vertical, SiphonX
the angle of inclination (Cf. Figure 6)
F 6 : O
IGURE
MODEL DEPENDING ON ITS INCLINATION
This curve is obtained by applying the following method:
the measurement concerns the upstream pressure of a
10ml/h flow of water passing through the SiphonX
230
Sophysa proximal and distal catheters and by varying the
angle from 0° (horizontal) to 90° (vertical). The same curves
270
are obtained for flow rates between 5 and 50ml/h.
310
The control measurement is performed disregarding the
resistance of the catheters.
350
400
®
valve, and the assembly
®
" assembly is vertical,
adds 200 mmH O to the operating pressure of
2
®
valve (cf. Figure 5).
–
LOW PRESSURE CURVES FOR THE
-
ATTACHED GRAVITATIONAL ANTI
®
S X
IPHON IN VERTICAL POSITION
®
adds a resistance which depends on
PERATING PRESSURES FOR THE
,
5 50
BETWEEN AND
SPV-SX
MODEL
-
SIPHON DEVICE
.
®
"
®
S X , SX-200
IPHON
WHATEVER THE FLOW RATE
/
ML H
®
and the
ENGLISH – 9