Limiting pressure in an implanted catheter

A method carried out by an implantable infusion device comprising:

• receiving data regarding a catheter being used with the infusion device, wherein the data comprises information indicative of a burst pressure or a cutoff pressure of the catheter, the catheter having a lumen operably coupled to a reservoir of the infusion device and configured to deliver fluid from the infusion device to a target location of a patient;
• infusing fluid from the reservoir into the lumen of the catheter at a first rate;
• monitoring pressure via a pressure sensor in communication with the lumen of the catheter, wherein monitoring the pressure comprises acquiring pressure data from the pressure sensor at a first frequency;
• determining whether the monitored pressure exceeds a first threshold, wherein the first threshold is based on the data regarding the catheter;
• monitoring a rate of infusion of fluid from the reservoir into the lumen of the catheter;
• determining whether the rate of infusion exceeds a threshold rate of infusion;
• and
• increasing the frequency of acquisition of pressure data from the pressure sensor if the monitored pressure is determined to exceed the first threshold or if the monitored rate of infusion is determined to exceed the threshold rate of infusion.

A method carried out by an implantable infusion device comprising:

• receiving data regarding a catheter being used with the infusion device, wherein the data comprises information regarding a burst pressure or a cutoff pressure of the catheter, the catheter having a lumen operably coupled to a reservoir of the infusion device and configured to deliver fluid from the infusion device to a target location of a patient;
• infusing fluid from the reservoir into the lumen of the catheter at a first rate;
• monitoring pressure via a pressure sensor in communication with the lumen of the catheter, wherein monitoring the pressure comprises acquiring pressure data from the pressure sensor at a first frequency;
• monitoring a rate of infusion of fluid from the reservoir into the lumen of the catheter;
• deriving a threshold pressure based on the data regarding the catheter and the monitored rate of infusion;
• determining whether the pressure exceeds the threshold;
• and
• increasing the frequency of acquisition of pressure data from the pressure sensor if the monitored pressure is determined to exceed the threshold.

A method carried out by an implantable infusion device, comprising:

• receiving data regarding a catheter being used with the infusion device, wherein the data comprises information indicative of a burst pressure or a cutoff pressure of the catheter, the catheter having a lumen operably coupled to a reservoir of the infusion device and configured to deliver fluid from the infusion device to a target location of a patient;
• infusing fluid from the reservoir into the lumen of the catheter at a first rate;
• monitoring pressure via a pressure sensor in communication with the lumen of the catheter, wherein monitoring the pressure comprises acquiring pressure data from the pressure sensor at a first frequency;
• determining whether the monitored pressure exceeds a first threshold, wherein the first threshold is based on the data regarding the catheter;
• and
• increasing the frequency of acquisition of pressure data from the pressure sensor if the monitored pressure is determined to exceed the first threshold.