Programmable Mattress Adjustment via Linear Actuators
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Solution Overview
Problem
Existing solutions for alleviating pressure points and bed sores during sleep are cumbersome, expensive, and lack programmable capabilities and ease of control, leading to increased healthcare costs and discomfort.
Innovation Solution
A programmable mattress adjustment apparatus using linear actuators controlled by a programmable logic controller (PLC) that can be programmed to adjust the mattress in various sequences to alleviate pressure points without requiring frequent repositioning, with optional wireless remote control operation and sequence sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If hydraulic systems with master and slave cylinders are used to rock the bed, then pressure point relief is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces complex hydraulic systems with a simpler mechanical linkage system consisting of a rocking mechanism attached to the bed frame. This mechanical system uses levers and linkages to achieve the rocking motion, eliminating the need for hydraulic cylinders, pumps, and fluid systems while maintaining the pressure relief function.
Solution Approach 2:
The invention extracts only the essential rocking function from complex hydraulic systems. By using a dedicated rocking mechanism with simple mechanical components, it removes unnecessary hydraulic complexity while preserving the core benefit of pressure point relief through periodic position changes.
2Adaptability or versatility
If programmable logic controller with multiple actuators is used, then mattress adjustment versatility improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent divides the mattress into multiple independently controllable sections (head section, foot section, and side sections). Each section can be adjusted independently or in combination, allowing versatile positioning programs while using simple actuators that are easier to manufacture and install compared to a fully integrated complex system.
Solution Approach 2:
The invention implements dynamic adjustability through a control system that can program different sequences and combinations of actuator movements. This allows the simple mechanical structure to achieve complex mattress positioning patterns, providing versatility without requiring equally complex hardware.
3Object-affected harmful factors
If frequent patient turning is performed to prevent bed sores, then pressure ulcer risk decreases, but patient comfort and sleep quality worsen
Solution Approach 1:
The patent implements periodic rocking motion at controlled intervals and angles, creating gentle pressure redistribution that prevents bed sores without requiring frequent abrupt patient repositioning. This periodic action maintains skin health while allowing patients to remain in a more comfortable, consistent position throughout the night.
Solution Approach 2:
The rocking mechanism creates a gentle oscillating motion that periodically shifts pressure points across the patient's body. This mechanical vibration-like action promotes circulation and prevents pressure ulcer formation while being smooth and comfortable enough not to disturb patient sleep quality.
4Ease of manufacture
If simple rocking mechanism is used, then ease of manufacture improves, but programmable capability and control precision are reduced
Solution Approach 1:
The patent introduces a control system as an intermediary between the simple mechanical rocking mechanism and the desired complex positioning functions. This control layer enables programmable sequences, timing, and actuator coordination, providing versatile mattress adjustment capabilities while keeping the physical mechanical components simple and easy to manufacture.
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 solution provides a cost-effective, easy-to-manufacture and maintain system that allows for customizable mattress adjustments, reducing pressure points, bed sore risk, and discomfort, promoting restful sleep while minimizing the need for frequent patient turning.
Implementation Method 1
A programmable mattress adjustment apparatus includes a series of linear actuators attached to a mattress of a bed
Data Source
AI summary
A bed adjustment apparatus and method includes a linear actuator attached to a bed to move a portion of a mattress. A control box activates the linear actuator based on commands and sequences received from a remote control. The control box optionally includes a PLC to store the commands and sequences. The remote control optionally communicates wirelessly with the control box. The remote control allows a user to select and send the control box commands and sequences to control the linear actuator. The sequences are pre-installed, user programmed, received from another remote, or downloaded as desired. The apparatus allows a user to alleviate pressure points during sleep without requiring the user to adjust their sleeping position by adjusting the mattress based on a selected sequence.