Peritoneal Dialysis Transfer Set with Integrated Filter

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Peritoneal dialysis systems lack effective measures to prevent contamination, leading to infections such as bacterial peritonitis, which can be fatal, due to the introduction of foreign bacteria and other contaminants through the system's components and connections.

Innovation Solution

The development of transfer sets with filters configured to remove contaminants from dialysate solution, incorporating semi-permeable membranes and one-way valves to prevent backflow, ensuring the safe and reliable delivery of dialysate while reducing the risk of infection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional peritoneal dialysis systems without filters are used, then the system is simpler and easier to manufacture, but contaminants can enter the patient causing infections

Engineering Contradiction:

Improveprevention of patient infectionVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

A filter is introduced as an intermediary component between the dialysate solution source and the patient's peritoneal cavity. The filter acts as a mediator that allows beneficial dialysate to pass through while blocking harmful contaminants, thus preventing infection without fundamentally changing the overall dialysis system architecture

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The filter utilizes porous material with specific pore sizes that allow passage of dialysate molecules while blocking larger contaminant particles and microorganisms. The porous structure provides selective permeability based on size exclusion, enabling the filter to distinguish between beneficial and harmful substances

Inventive Principle:

Principle #31Porous materials

2Object-affected harmful factors

If filters are added to transfer sets, then contaminant removal is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvecontaminant presence in dialysateVSAvoidtransfer set production

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The filter is merged with the transfer set assembly, integrating the filtration function directly into the existing transfer set structure. This combination eliminates the need for separate filter components and simplifies the manufacturing process by reducing the number of discrete parts that need to be produced and assembled

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The transfer set with integrated filter serves multiple functions: it transfers dialysate from the source to the patient, filters contaminants from the dialysate, and maintains system sterility. This multi-functionality reduces the need for additional specialized components, simplifying overall system manufacturing

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If one-way valves are incorporated to prevent backflow, then patient safety is improved, but device complexity increases

Engineering Contradiction:

Improveprevention of backflow contaminationVSAvoidvalve mechanism structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The one-way valve is designed to automatically prevent backflow without requiring external control mechanisms or user intervention. The valve structure itself provides the flow-directional control through passive mechanical means, such as pressure-driven closure or check valve action, making the system self-regulating and reducing overall complexity

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The transfer sets effectively filter out contaminants, reducing the risk of patient infections and ensuring the safety and reliability of peritoneal dialysis therapy by preventing the introduction of bacteria, viruses, and other harmful substances into the patient's peritoneal cavity.

Implementation Method 1

a filter positioned within the fluid channel and configured to filter contaminants from solution flowing within the fluid channel between the first connector and the second connector

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

incorporating semi-permeable membranes

Methodology Applied

Scientific EffectSemi-permeable membrane: Semipermeable Membrane

Implementation Method 3

one-way valves to prevent backflow

Methodology Applied

Scientific EffectOne-way valve mechanism: Valve

Data Source

PatentUS20230321329A1Transfer sets with filters, including transfer sets for peritoneal dialysis systems, and associated systems, devices, and methods

Publication Date: 2023.10.12 BYONYKS MEDICAL DEVICES INC

AI summary

Transfer sets with filters, including transfer sets with filters for peritoneal dialysis (PD) systems, and associated systems, devices, and methods are disclosed herein. In one embodiment, a transfer set includes a first connector configured to be coupled to a disposable set of a PD system, a second connector configured to be coupled to a catheter of the PD system, and a fluid channel extending between the first connector and the second connector. The transfer set further includes a filter positioned within the fluid channel and configured to filter contaminants from solution flowing within the fluid channel between the first connector and the second connector. In some embodiments, the transfer set further includes a one-way valve positioned between the filter and the second connector and configured to prevent fluid from flowing through the one-way valve in a direction toward the filter.