Double Lumen Catheters

What is a Double Lumen Catheter?

A Double Lumen Catheter is a medical device used for vascular access in dialysis patients. This catheter is designed to have two separate lumens (tubes) within a single catheter, allowing for simultaneous blood withdrawal and blood return during hemodialysis treatment. It is commonly used in patients with acute kidney failure or those awaiting permanent access solutions like an AV fistula or AV graft.

Why It’s Used in Dialysis

A Double Lumen Catheter provides a temporary vascular access for patients requiring dialysis, especially when other options like an AV fistula or graft aren’t viable. It ensures efficient dialysis by:

• Withdrawing blood from the patient for purification.

• Returning cleaned blood back to the patient after dialysis.

• Serving as a quick solution in urgent dialysis needs.

Key Features and Benefits

• Two Lumens: One for blood withdrawal (arterial lumen) and the other for blood return (venous lumen).

• Flexible and Soft: Made to be comfortable and reduce risk of vessel damage.

• Sterile and Single-Use: Ensures infection control and safety for each procedure.

• Short-Term Use: Primarily used for temporary access until a permanent solution can be created.

Sizes and Flow Rates

Clinical Considerations

• Insertion Site: Typically inserted in the internal jugular vein, subclavian vein, or femoral vein.

• Monitor for Complications: Including infection, clot formation, or catheter malposition.

• Limit Duration: Double lumen catheters are meant for temporary use. Long-term access requires creation of an AV fistula or AV graft.

Summary

The Double Lumen Catheter is a vital temporary access device for hemodialysis, providing a quick solution for blood withdrawal and return. It’s designed for short-term use and helps ensure efficient dialysis when other vascular access options are not yet in place.