Dialysis Machine Door-In-Door Compartment for Filter Safety
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Solution Overview
Problem
Blood treatment devices, such as dialysis machines, face safety risks and accessibility issues due to externally mounted dialysis fluid filters, which can get damaged or cause leaks during relocation, and existing designs that move these filters inside impair access to other components.
Innovation Solution
Integrating dialysis filters and other external components into a separate carrier compartment within the device housing, allowing for easy access and protection by using a door-in-door design where the compartment can be closed externally, maintaining access to internal components without increasing the device's outer dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If dialysis fluid filters are mounted outside the housing, then accessibility during operation and maintenance is improved, but safety risks increase due to potential injury from hot filters and increased space requirements
Solution Approach 1:
The housing is divided into separate compartments: an internal compartment for housing components and an external carrier compartment mounted on the housing surface for holding dialysis fluid filters. This segmentation allows filters to be accessible while protected from causing harm to operators and patients.
Solution Approach 2:
The carrier compartment acts as an intermediary structure between the internal housing components and the external environment. It provides a dedicated space for filters that are both accessible for operation and protected from directly contacting operators and patients, thereby reducing safety risks.
2Ease of operation
If dialysis fluid filters are mounted outside the housing, then accessibility is improved, but the risk of accidental detachment and leakage increases
Solution Approach 1:
The carrier compartment integrates the filter mounting function directly into the housing structure. The compartment provides a secure, built-in attachment mechanism that combines the accessibility benefit of external mounting with the reliability of integrated construction, preventing accidental detachment and leakage.
3Object-affected harmful factors
If dialysis fluid filters are moved inside the housing, then safety risks are reduced, but accessibility to filters and other components is impaired
Solution Approach 1:
The housing is segmented into an internal compartment for sensitive components and an external carrier compartment for filters. This allows filters to be positioned externally for safety and accessibility while the internal housing space remains available for other components, resolving the contradiction between safety and accessibility.
4Ease of operation
If a cover flap design is used to access internal components, then accessibility to internal components is improved, but the extracorporeal blood treatment module cannot be accessed without pivoting it outwards
Solution Approach 1:
The access system is segmented into independent openings: one for internal components and another for the extracorporeal blood treatment module. This allows each module to be accessed independently through its own opening, eliminating the need to pivot the extracorporeal module outwards and reducing operational complexity.
Solution Approach 2:
The extracorporeal blood treatment module is extracted from the internal housing space and positioned externally on the carrier compartment. This extraction allows it to be accessed through a separate external opening, independent of the internal component access path, thereby reducing the complexity of the access mechanism.
Data Source
AI summary
A housing for a dialysis machine, with a wall, an opening which is provided in the wall, and a door by means of which the opening can be closed. The door or an additional wall has an installation space for a device component, which can be closed by means of an additional door.