A novel mechanical chest compressor with rapid deployment in all population cardiopulmonary resuscitation

Chih-Wei Sung,Fu-Shan Jaw,Hung-Chih Wang,Jiann-Shing Shieh

doi:10.1038/s41598-020-63058-9

Chih-Wei Sung, Fu-Shan Jaw + Show 2 more

Open Access

https://doi.org/10.1038/s41598-020-63058-9

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Abstract

Cardiopulmonary resuscitation (CPR) resuscitates patients suffering from cardiac arrest. Mechanical chest compression CPR highlights the need for high CPR quality to facilitate survival and neurological recovery. However, current CPR devices cannot be used on pregnant women or infants. These devices’ long re-setup times interrupt CPR and can cause cerebral ischemia. This study designed a novel device with a crank-sliding mechanism. The polar coordinate system (r, θ, z) shortened the setup time and enabled adjustment without moving the patient. We compared our device with commercial products (e.g., LUCAS-2) by quantifying the compression pressure. Control groups for manual CPR of trained physicians and untrained citizens were recruited. We used Resusci Anne products as models. Our results indicated that our design exhibited performance similar to that of LUCAS-2 in adults (557.8 vs. 623.6 mmHg, p = 0.217) and met the current CPR standard guidelines. Notably, our device is applicable to pregnant women [565 vs. 564.5 (adults) mmHg, p = 0.987] and infants [570.8 vs. 564.5 (adults) mmHg, p = 0.801] without lowering the compression quality. The overall compression quality and stability of mechanical chest compression CPR were favorable to those of manual CPR. Our device provides an innovative prototype for the next generation of CPR facilities.

Highlights

Cardiopulmonary resuscitation (CPR) resuscitates patients suffering from cardiac arrest
To deliver high-quality CPR, manual chest compression CPR (M-CPR) is traditionally the initial tool used for resuscitation
Our results revealed that the proposed Mechelper device exhibited a pressure pattern similar to that of LUCAS-2

Summary

Introduction

Cardiopulmonary resuscitation (CPR) resuscitates patients suffering from cardiac arrest. Mechanical chest compression CPR highlights the need for high CPR quality to facilitate survival and neurological recovery. Current CPR devices cannot be used on pregnant women or infants These devices’ long re-setup times interrupt CPR and can cause cerebral ischemia. High-quality CPR, as defined by the American Heart Association and European Resuscitation Council, involves four aspects: a high compression rate (100 to 120 per minute), sufficient compression depth (5 cm in adults and teenagers; 4 cm in infants), full chest recoil, and minimal hands-off time[4,5]. Mcc-CPR–assisted facilities have certain advantages over M-CPR; Mcc-CPR devices can provide a stable compression depth and frequency over a long period in a variety of clinical scenarios such as those involving up-downstairs, ambulances, and patient posture[8,9]. Two hands on the lower half of Two hands on the lower half of Two fingers in the center of the sternum the sternum the chest

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