Integrated Footboard Compression Module for Safer Bed Therapy

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Solution Overview

Problem

Existing patient support apparatuses, such as beds, with integrated limb compression devices face issues like the control box slipping off the footboard and long power cords posing tripping hazards, and prior systems do not adapt operation based on bed features or patient conditions.

Innovation Solution

A patient support apparatus with a frame, control circuitry, and a footboard that houses a compression module with integrated pneumatic and electrical components, allowing for wireless power and communication, and adjustable operation based on bed features and patient status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the control box is hung on the footboard, then the compression device can be operated, but the control box may slip off and create safety hazards

Engineering Contradiction:
Improveoperation of compression deviceVSAvoidstability of control box
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The control box is integrated into the footboard structure, merging two separate components (control box and footboard) into a unified assembly. This eliminates the risk of the control box slipping off while maintaining full operational functionality of the compression device.

Inventive Principle:
Principle #5Merging (Combining)

2Use of energy by moving object

If long power cords are routed from the control box to power outlets, then power can be supplied, but tripping hazards and obstructions are created

Engineering Contradiction:
Improvepower supply to compression deviceVSAvoidtripping hazard
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The power cord routing is extracted from the conventional external path and repositioned through an integrated pathway within the footboard structure. This removes the hazardous external cord from the patient room environment while maintaining power supply functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If the control box is stored separately when not in use, then space is saved, but additional handling and setup time is required

Engineering Contradiction:
Improvestorage of control boxVSAvoidsetup and storage time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The control box and footboard are merged into a single integrated unit, eliminating the need for separate storage and handling. The control box remains permanently positioned within the footboard structure, ready for immediate use without setup time.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of operation

If prior art systems are used, then compression therapy can be provided, but operation cannot be varied based on bed features or patient conditions

Engineering Contradiction:
Improvecompression therapy deliveryVSAvoidadaptation to bed features and patient status
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The integrated system provides multi-functionality by combining compression therapy delivery with bed feature monitoring and patient condition adaptation. The system can vary therapy parameters based on multiple inputs including bed position, patient weight, and other physiological data, making it adaptable to diverse clinical scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 secure and adaptable compression therapy system that reduces tripping hazards and varies therapy parameters based on bed and patient conditions, enhancing safety and effectiveness.

Implementation Method 1

The sleeves are inflated and deflated intermittently to promote blood flow within the patient's leg or legs

Methodology Applied
Scientific EffectPneumatic pressure: Pressure Gradient

Data Source

PatentEP3207911B1Patient support apparatus having an integrated limb compression device
Publication Date: 2019.04.03 HILL ROM SERVICES INC
  • EP3207911B1 patent drawingFigure 1
  • EP3207911B1 patent drawingFigure 2~4
  • EP3207911B1 patent drawingFigure 5~6

AI summary

A patient support apparatus includes a frame having a patient support deck. A footboard is removably coupled to the frame. A compression therapy module is located inside the footboard or is mounted to a foot section of the frame. A sleeve port is pneumatically coupled to the compression therapy module and is located on the foot section. The sleeve port is configured for attachment to at least one tube extending from a compression sleeve worn on a limb of a patient. Control circuitry is coupled to the frame and is operable to control functions of the patient support apparatus and to control the compression therapy module. A graphical display screen is coupled to the control circuitry and displays user inputs that are selected to control functions of the patient support apparatus and the compression therapy module.