Dialysis Device Dynamic Treatment Re-evaluation

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Solution Overview

Problem

Current dialysis devices lack the ability to dynamically adjust treatment settings to achieve therapeutic objectives while allowing flexibility in individual treatment sessions, particularly in response to patient modifications or clinical conditions, and do not effectively re-evaluate treatment options based on measured parameters.

Innovation Solution

A dialysis device with a prescriber interface for inputting therapeutic objectives and a re-evaluation means that suggests treatment options by adjusting settings such as duration, blood flow, fluid removal rate, and dialysis fluid composition, allowing patient modifications and measuring clinical parameters to ensure therapeutic objectives are met, with a graphical interface for displaying treatment results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If treatment settings are modified by the patient via patient interface, then flexibility and ease of operation are improved, but reliability of achieving therapeutic objectives deteriorates

Engineering Contradiction:

Improvepatient ability to modify treatment settingsVSAvoidachievement of therapeutic objectives

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The re-evaluation means continuously monitors treatment parameters and compares actual treatment delivery against therapeutic objectives, providing feedback to both the control means and patient interface. This feedback loop ensures that when patients modify settings, the system detects deviations and alerts prescribers or suggests corrective actions, maintaining reliability while preserving patient flexibility.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The re-evaluation means acts as an intermediary between the patient interface and the treatment delivery system. It evaluates proposed or actual treatment modifications against therapeutic objectives before implementation, or after implementation to detect deviations. This intermediary layer ensures patient flexibility does not compromise therapeutic reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If treatment parameters are strictly programmed by prescriber, then reliability of achieving therapeutic objectives is improved, but adaptability to patient needs and clinical conditions deteriorates

Engineering Contradiction:

Improveachievement of therapeutic objectivesVSAvoidability to adjust to patient modifications and clinical conditions

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system transitions from static prescriber-programmed parameters to dynamic treatment management. The re-evaluation means continuously assesses treatment progress against therapeutic objectives and can trigger adaptive responses through the control means, allowing treatment parameters to dynamically adjust based on actual treatment delivery and patient needs while maintaining therapeutic reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The re-evaluation means enables the treatment system to self-monitor and self-adjust within predefined boundaries. By automatically evaluating treatment parameters and comparing them against therapeutic objectives, the system can identify deviations and initiate corrective actions without requiring constant prescriber intervention, thus maintaining reliability while improving adaptability.

Inventive Principle:

Principle #25Self-service

3Reliability

If re-evaluation means continuously monitors and suggests treatment options, then reliability of achieving therapeutic objectives is improved, but device complexity increases

Engineering Contradiction:

Improveachievement of therapeutic objectivesVSAvoidcomplexity of re-evaluation and control mechanisms

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The re-evaluation means extracts and isolates the complex monitoring and evaluation functions from the core treatment delivery system. By separating the evaluation logic into a dedicated module that interfaces with both the prescriber interface and patient interface, the system achieves reliable therapeutic monitoring without significantly complicating the overall device architecture or operation.

Inventive Principle:

Principle #2Taking out (Extraction)

4Adaptability or versatility

If multiple treatment options are suggested based on measured parameters, then adaptability to clinical conditions is improved, but ease of operation deteriorates

Engineering Contradiction:

Improveability to provide multiple treatment optionsVSAvoidpatient ability to select and understand treatment options

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The re-evaluation means serves as an intermediary that processes complex treatment optimization calculations and presents simplified, clinically relevant treatment options to patients through the patient interface. It translates multiple possible treatment adjustments into understandable options with clear rationale, maintaining adaptability while preserving ease of operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP2411069B1Dialysis device

Publication Date: 2015.07.22 GAMBRO LUNDIA AB

AI summary

A dialysis device comprising a prescriber interface and a programming means configured to allow, via the prescriber interface, input of a set of therapeutic objectives and a treatment plan and a re-evaluation means configured to, as a function of the therapeutic objectives and the treatment plan, suggest at least one treatment option comprising a set of settings of a treatment session to achieve said set of therapeutic objectives.