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Flow Performance Guidelines For Bard Access Systems Power-Trialysis
™
Short-Term Dialysis Catheter
Performance Guidelines: (As suggested by In Vitro data)
:
Power Injection Flow Information (Injection pressure should be set at a maximum of 300 psi)
Center Lumen
Configuration
Max Indicated
Power Injections Flow-Rate
1
Average Max Catheter
Pressure During Max Indicated Power
Injection Rate
2
30 cm Straight & Curved Extension Legs
5 mL/sec
107 psi
24 cm Alphacurve
™
5 mL/sec
126 psi
1
Represents maximum indicated flow rate for power injection of contrast media.
2
Internal catheter pressure during power injection of contrast media at 11.8cP with safety cut-off at 300 psi.
Maximum Static Burst Pressure Information
3
Center Lumen
Configuration
Average Max Static Burst Pressure
Range of Max Static Burst Pressures
30 cm Straight & Curved Extension Legs
358 psi
356-360 psi
24 cm Alphacurve
™
333 psi
315-348 psi
3
Maximum burst pressure is the static burst pressure failure point of the power injectable lumen of the catheter when fully occluded. The
margin of safety for power injection is demonstrated comparing the average static burst pressure to the catheter pressure during power
injection at 5 mL/sec flow rate, assuming patency of the catheter has been verifed.
Dialysis Lumen Flow Information (Flow Rate vs. Lumen Pressure )
5
Average Pressures
30 cm Straight
(400 mL/min Flow Rate)
24 cm Curved Ext. Legs
(400 mL/min Flow Rate)
24 cm Alphacurve
™
(350 mL/min Flow Rate)
4
Venous (mmHg)
216
197
239
Arterial (mmHg)
-221
-204
-216
4
In Vitro flow data indicates flow rates above 350 mL/min for the Alphacurve configuration may exceed a prepump pressure of - 250 mmHg
as per K/DOQI (2006) guidelines.
5
Flow Rate vs Lumen Pressure data obtained using a blood simulant of water and glycerin at 3.4cP.
Center Lumen Flow Information (Gravity Flow Rate (1 Meter of Water Infusion Pressure))
Configuration
Insertion Length
30 cm
24 cm
20 cm
15 cm
12.5 cm
Straight & Curved Extension Legs (mL/hr)
2258
2634
2830
3333
3721
Alphacurve
™
(mL/hr)
2149
2387
2539
3092
Priming Volumes
Configuration
Insertion Length
30 cm
24 cm
20 cm
15 cm
12.5 cm
Straight & Curved Extension Legs (mL)
1.8
1.6
1.4
1.2
1.1
Alphacurve
™
(mL)
2.0
1.8
1.6
1.5
Recirculation Rates
6
Configuration
Forward
Reverse
Straight & Curved Extension Legs
< 2%
< 2%
Alphacurve
™
< 2%
< 2%
6
Recirculation Rates obtained using a saline dilution technique with a blood simulant of water and glycerin at 3.4 cP.
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