Peritoneal Dialysis Catheter Anchor

UVM Reference Number: C681

Summary:

Silastic tubing with encased weighted metallic ball bearings to both position and fix the PD catheter into a satisfactory position

Background:

Peritoneal dialysis (PD) is a low cost and physiologically beneficial option for many patients with end stage renal disease (ESDR), but catheter migration from the cul de sac of the pelvis can lead to catheter malfunction and ultimately require the transfer of the patient to full hemodialysis. Migration is reported in up to 35% of cases, but more recent 3D imaging shows that this frequency is likely severely underestimated and may be closer to 80%. Currently, no available device or technique exists to prevent PD catheter migration with the percutaneous insertion method.

Technology Overview:

This device uses Silastic tubing encased weighted metallic ball bearings to both position and fix the PD catheter into a satisfactory position in the cul de sac. The device is flexible and can be reshaped with thermal memory and can provide more than 20 grams of weight to allow the catheter to conform easily to the anatomy of the pelvis. PD is increasingly recognized as more cost effective than hemodialysis and is associated with greater patient independence and improved quality of life. This weighted catheter anchor would help ensure that qualified patients stay on PD while also providing additional cost savings by decreasing catheter revision and replacement rates.

Figure 1, Figure 2.

Further Details:

In vitro analysis and cadaver feasibility study of a peritoneal dialysis catheter tungsten weighted anchor Morris et al, J. Exp Neohrol 2020;1 (1);25-37
Interventional Radiology Placement and Management of Tunneled Peritoneal Dialysis Catheters: A Pictorial Review; Morris; Radiographics; October Special Issue 2020