User's Manual

Table Of Contents
Troubleshooting Pump System under-delivery
98
Under-delivery caused by catheter occlusion
Under-delivery caused by Catheter occlusion can occur either abruptly or gradu-
ally. The insulin usage and clinical symptoms are identical to those of Pump
under-delivery. Confirm a Catheter occlusion condition by performing a Pressure
Measurement Procedure. Then perform the following procedures to clear the
occlusion:
First, flush the Catheter by using the Side Port Catheter Flush Procedure
outlined in Appendix F.
If the Flush Procedure is unsuccessful, replace the Catheter.
Catheter replacement surgery should be performed in a manner similar to the ini-
tial Pump System implantation. PPC initialization will not be necessary. How-
ever, after the Catheter replacement, Pump function and delivery verifications
must be performed.