[Design of a portable external cardiac compression device]

Area of Science:

• Emergency Medicine
• Biomedical Engineering

Background:

• Current cardiopulmonary resuscitation (CPR) guidelines mandate immediate, high-quality chest compressions during cardiac arrest.
• Manual CPR effectiveness diminishes over time due to physical fatigue, leading to decreased compression depth and frequency.
• Existing mechanical CPR devices suffer from issues like positional inaccuracy, high cost, and poor durability.

Purpose of the Study:

• To design and develop a portable external chest cardiac compressor that adheres to international CPR guidelines.
• To address the limitations of manual CPR and current mechanical devices, improving compression quality and patient outcomes.

Main Methods:

• A portable external chest cardiac compressor was designed by medical staff from the intensive care unit of the Eighth Medical Center of the Chinese People's Liberation Army General Hospital.
• The device incorporates a positioning sucker, elastic body, mounting shell, and pressing components.
• The design obtained the National Utility Model Patent of China (ZL 2018 2 1173254.3).

Main Results:

• The device enables rapid and accurate compression positioning.
• It allows for visible compression depth monitoring.
• Achieves full chest wall rebound and minimizes non-compression time.

Conclusions:

• The developed portable external chest cardiac compressor offers mobility and ease of operation.
• It is suitable for a wide range of users and various settings.
• This device can potentially improve the quality and effectiveness of CPR delivery in critical situations.