CPR Compression Cooling and Battery Removal Data Protection
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Solution Overview
Problem
Existing CPR chest compression devices face issues with excessive heating due to heat generation by components like motors and batteries, and there is a risk of data loss when batteries are removed during operation.
Innovation Solution
The device incorporates a housing configuration with baffles and exhaust fans for cooling, along with a battery retainer mechanism that detects attempted removal and ensures data is saved before battery extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the motor and battery operate continuously during CPR compression, then the device provides sustained chest compressions at resuscitative rates, but excessive heat is generated by the motor and battery
Solution Approach 1:
The patent extracts the heat-generating motor and battery from the main device housing into a separate removable battery pack. This physical separation allows the battery to be easily removed and replaced when depleted or overheated, while the main device continues to function. The battery pack includes its own cooling fins and heat dissipation structures, addressing the thermal management issue independently from the compression mechanism.
Solution Approach 2:
The patent introduces a cooling system with fans and heat sinks as an intermediary between the heat-generating components and the environment. The cooling fans actively circulate air over the motor and battery, while heat sinks passively dissipate heat from the battery pack. This intermediary cooling mechanism enables continuous operation by managing thermal buildup without requiring frequent interruptions for cooling.
2Ease of operation
If the battery is easily removable for replacement, then the device allows quick battery changes, but data loss occurs when the battery is removed during operation
Solution Approach 1:
The patent implements an automatic data save function that is triggered when the battery pack is removed or when low battery conditions are detected. The control system continuously monitors battery status and automatically saves all accumulated operating data to non-volatile memory before battery removal occurs. This preliminary action ensures data integrity while maintaining the ease of battery replacement, as users can swap batteries without worrying about data loss.
Solution Approach 2:
The patent incorporates a feedback mechanism where the control system continuously monitors battery voltage, current, and operational parameters. When the battery approaches depletion or is removed, the system receives feedback signals and automatically initiates data saving procedures. The system also provides visual or audible feedback to the user about battery status and data save completion, ensuring awareness and preventing data loss while maintaining operational simplicity.
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
Effective cooling of components and prevention of data loss during battery replacement, ensuring continuous operation and data integrity.
Implementation Method 1
a fan disposed within the compression device housing, proximate a second end of the motor housing, between the second end of the motor housing and the exhaust aperture of the compression device housing, arranged to draw air from the second end of the motor housing and force air out the exhaust aperture of the compression device housing
Implementation Method 2
The devices and methods described below provide for improved cooling in a CPR chest compression device. The chest compression device may include a housing configuration with baffles establishing a flow path over the battery and motor of the device
Data Source
AI summary
A CPR chest compression device with a cooling exhaust flow path configured to direct cooling air flow through the device. A CPR chest compression device with a battery retainer interoperable with the control system to provide for controlled shut-down when an operator attempts to remove the battery during operation.