Guided Active Compression Decompression CPR Handle
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Solution Overview
Problem
Conventional CPR methods are inefficient and often result in operator error or patient injury due to the manual and tiring nature of external chest compressions, which can lead to inadequate blood circulation and ventilation, and are limited by the availability and size of mechanical devices.
Innovation Solution
The development of systems and methods for guided active compression decompression (ACD) CPR, which include a handle, adhesive pad, and optional automated components to facilitate enhanced chest compression and decompression, providing guidance on force application and ventilation, and allowing for increased blood flow and airflow through a larger contact area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual chest compression is used, then the device is simple and portable, but the operator becomes fatigued and circulation is inadequate
Solution Approach 1:
A mechanical chest compression device serves as an intermediary between the operator and the patient's chest. The device includes a compression mechanism that transfers the operator's input force to the chest with mechanical advantage, reducing the physical effort required while maintaining effective compression depth and force for adequate circulation.
2Ease of operation
If manual chest compression is used, then the device is portable, but the compression force is insufficient and causes injury
Solution Approach 1:
The mechanical device acts as a force amplifier, converting the operator's manual input into sufficient compression force through mechanical advantage. The compression mechanism includes levers or springs that multiply the applied force, enabling adequate chest compression without requiring the operator to generate excessive force directly.
Solution Approach 2:
The device allows adjustment of compression parameters such as compression depth, force magnitude, and rate. These adjustable parameters enable optimization of compression effectiveness while preventing excessive force that could cause rib or sternum injury, balancing circulation effectiveness with patient safety.
3Productivity
If mechanical compression devices are used, then circulation is improved, but the device size and cost limit availability
Solution Approach 1:
The compression device is divided into separate functional modules: a compression mechanism, a positioning system, and a control interface. This segmentation allows each component to be optimized independently and enables the device to be assembled in compact configurations, reducing overall size while maintaining circulation effectiveness.
Solution Approach 2:
The device incorporates dynamic elements such as spring-loaded compression mechanisms and adjustable positioning systems that adapt to different patient sizes and chest stiffness. This dynamic capability allows the same compact device to effectively service patients of varying sizes without requiring multiple device variants, reducing overall device complexity and cost.
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
ACD CPR systems enhance blood circulation and ventilation, reduce operator fatigue, and are designed for ease of use in emergency settings, including emergency vehicles and non-medical facilities, by converting passive chest expansion into an active process, thereby improving patient outcomes.
Implementation Method 1
a flexible surface element configured to be removably attached to a body part over a contact area
Implementation Method 2
a compression element configured to be pressed so as to apply a compressive force to the patient's chest
Implementation Method 3
lifting the surface element to actively expand the patient's chest
Data Source
AI summary
Systems and methods for applying guided active compression decompression cardiopulmonary resuscitation are provided. Exemplary systems include a load cell, a handle, an adhesive pad. The handle and the adhesive pad are configured for magnetic coupling.