MedComp DIGNITY Instructions D'utilisation page 11

HEPARIN LOCK PROCEDURE
• To help prevent clot formation and catheter blockage, implanted
ports with open-ended catheters should be filled with sterile
heparinized saline after each use. If the port remains unused for
long periods of time, the heparin lock should be changed at least
once every four weeks. Remember that some patients may be
hypersensitive to heparin and these patients must not have their
port locked with heparinized saline.
Determining Port Volumes
• For Power Injectable Implantable Infusion Port devices, you will
need to determine the length of catheter used for each individual
patient.
• For system priming volume, multiply the catheter length in cm by
the corresponding catheter french size volume per cm provided in
the chart below:
FRENCH SIZE
5F
6.6F
8F
9.6F
• Then add the priming volume for the particular port configuration
as follows:
PLASTIC DIGNITY MODELS
Plastic Dignity Mini Profile CT Port
Plastic Dignity Low Profile CT Port
Plastic Dignity Mid-Sized CT Port
Plastic Dignity 5F Mid-Sized CT Port
PROFUSE MODELS
Pro-Fuse Low Profile CT Port
Pro-Fuse Profuse STD CT Port
Calculation Catheter
Example: Length (cm)
• For future reference it will be helpful to record this information on
the patient's chart and/or patient ID card.
Recommended Flushing Volumes:
PROCEDURES
When port not in use
After each infusion of
medication or TPN
After blood withdrawal
After power injection of
contrast media
Equipment
• Non-coring needle
• 10ml syringe filled with sterile saline
• 10ml syringe filled with 5ml heparinized saline (100 U/ml).
Note: Other concentrations of heparinized saline (10 to 1000 U/ml) have
been found to be effective. Determination of proper concentration and
volume should be based on patient's medical condition, laboratory tests,
and prior experience.
Procedure:
1. Explain procedure to patient and prepare injection site.
2. Attach a 10ml syringe filled with sterile normal saline to needle.
3. Aseptically locate and access port.
4. Flush the system, then repeat with 5ml of 100 U/ml heparinized
saline.
5. After therapy completion, flush port per institutional protocol.
Alcohol should not be used to soak or declot polyurethane
catheters because alcohol is known to degrade the polyurethane
catheters over time with repeated and prolonged exposure.
CATHETER PRIMING VOLUMES
CATHETER VOLUME PER CM
0.011 (mL/cm)
0.014 (mL/cm)
0.017 (mL/cm)
0.020 (mL/cm)
PORT PRIMING VOLUMES
Catheter
X
Volume per cm
FLUSHING VOLUMES
VOLUME (mL)
0.43mL
0.43mL
0.51mL
0.45mL
VOLUME (mL)
0.43 mL
0.63 mL
Port Volume
+
(mL)
VOLUME (100 U/ml)
5ml heparinized saline every 4 weeks
10ml sterile normal saline then 5ml
heparinized saline
20ml sterile normal saline then 5ml
heparinized saline
10ml sterile normal saline then 5ml
heparinized saline
-9-
System Total
=
Volume (mL)