Radiofrequency-Welded Mattress Retention Assembly for Hospital Bed Stability
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Solution Overview
Problem
Existing mattress retention systems in hospital beds fail to effectively secure the mattress during repositioning, leading to slipping or shifting, which can compromise cleanliness and safety by increasing the risk of infection and reducing the functional life of the mattress.
Innovation Solution
A mattress retention assembly featuring a combination of magnets, straps, and retention features that securely couple the mattress to the sleep deck of a hospital bed, utilizing radiofrequency welds for a sterile seal and flexible coupling mechanisms to allow easy detachment and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing mattress retention systems are used, then the mattress can be easily attached, but the mattress slips or shifts during bed repositioning
Solution Approach 1:
The retention system is divided into multiple independent components: a retention feature with planar and raised portions, a separate clasping portion, and a detachable coupling mechanism. This segmentation allows each component to perform its specific function optimally while maintaining overall reliability and ease of operation.
Solution Approach 2:
The retention system incorporates a detachable coupling mechanism that transitions between locked and unlocked states. The clasping portion can be easily engaged and disengaged from the retention feature, providing dynamic adaptability for both secure retention during use and easy detachment for repositioning or cleaning.
2Object-affected harmful factors
If the mattress is securely coupled to prevent movement, then cleanliness is maintained, but the system becomes more complex
Solution Approach 1:
The coupling function is extracted as a separate detachable mechanism rather than being integrated into the mattress or bed structure itself. This allows the retention feature to be simple and easy to clean while the coupling mechanism handles the complexity of secure attachment and detachment operations.
Solution Approach 2:
The retention feature acts as an intermediary component between the mattress and the bed structure. It provides a simple, cleanable interface on the mattress side while enabling complex retention and detachment functions through its interaction with the clasping portion, thus maintaining cleanliness without oversimplifying the overall system.
3Ease of repair
If the mattress can be easily detached for cleaning, then sterilization is facilitated, but the mattress may shift during use
Solution Approach 1:
The coupling mechanism is designed with dynamic states: a locked state during use that provides stable retention, and an unlocked state for cleaning that allows easy detachment. The transition between these states is simple and quick, enabling frequent sterilization without compromising position stability during normal use.
4Ease of manufacture
If the retention system uses simple components, then manufacturing is easier, but the mattress shifts during repositioning
Solution Approach 1:
The system uses simple, easily manufactured components: a retention feature that can be molded or fabricated as a simple plastic piece, a separate clasping portion with basic engagement geometry, and a straightforward detachable coupling mechanism. Each component's simplicity facilitates easy manufacturing while their combined interaction provides reliable mattress security during repositioning.
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 assembly minimizes mattress movement during bed repositioning, maintains cleanliness by facilitating easy sterilization, and extends the mattress's functional life by preventing contamination and wear.
Implementation Method 1
applying electromagnetic energy to the outer mattress shell and the at least one bonding strip at an attachment site to operably couple the outer mattress shell with the at least one bonding strip
Implementation Method 2
applying electromagnetic energy to the outer mattress shell and the at least one bonding strip at an attachment site
Data Source
AI summary
A mattress assembly includes a mattress and an outer mattress shell that covers the mattress and has a patient support portion and a sleep deck portion. The outer mattress shell defines an interior surface and an exterior surface. A bonding strip is coupled to the interior surface of the outer mattress shell and a fastening strip is coupled to the exterior surface of the outer mattress shell. A weld extends through the exterior surface and through the interior surface of the outer mattress shell. A clasp locker is operably coupled to the fastening strip and detachably couples the patient support portion to the sleep deck portion of the outer mattress shell.