Peritoneal dialysis system having a patient line filter - Patents.com

JP2024546802A5Pending Publication Date: 2025-11-06BAXTER INT INC +1
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Patent Information

Application Number
JP2024534707
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2021-12-17
Filing Date
2022-11-21
Publication Date
2025-11-06

AI Technical Summary

Technical Problem

There is a need for an effective and low-cost method to provide additional sterilization of peritoneal dialysis (PD) fluid before it is sent to the patient, as PD fluid injected into the peritoneal cavity must be sterile, and existing methods may not adequately ensure sterility, particularly in home hemodialysis settings where frequent treatments are required.

Method used

A peritoneal dialysis system with a PD machine or cycler that pumps PD fluid through a patient line connected to a filter set, using a reusable or disposable dual lumen patient line with a filter membrane that separates fresh and used PD fluid, ensuring minimal contact of used fluid with the filter membrane and providing a dedicated path for used fluid to bypass the membrane, while fresh fluid is filtered effectively.

Benefits of technology

The system ensures the sterility of PD fluid by effectively filtering fresh fluid and allowing used fluid to bypass the filter membrane, reducing the risk of contamination and improving the reliability and efficiency of peritoneal dialysis treatments, especially in home settings.

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Abstract

The peritoneal dialysis ("PD") system (10) includes a PD machine (20), a patient line (50) extending from the PD machine (20), and a filter set (100) in fluid communication with the patient line (50), the filter set (100) including a filter membrane (120, such as a sterilizing grade filter membrane or a bacterial reduction filter membrane) positioned and arranged such that fresh PD fluid flows through the filter membrane (120) into a filtered fluid compartment (106f), the filtered fluid compartment (106f) including an outlet (106o) to a port (106p), the port (106p) in fluid communication with a spent PD fluid channel (106u) positioned and arranged to transport spent PD fluid around the filter membrane (120) without contacting the filter membrane (120). Methods for priming the filter set (100) are also disclosed.
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