U-Shaped Chest Compression Device for Simultaneous CPR and Angiography
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Solution Overview
Problem
Conventional chest compression devices obstruct cardiovascular images during cardiopulmonary resuscitation, making it difficult to monitor heart blood vessels using coronary angiography.
Innovation Solution
A chest compression device with a U-shaped support and pair of driving parts that allow synchronized vertical reciprocating movement, made of materials that allow X-ray penetration, enabling simultaneous chest compression and cardiovascular imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional chest compression device is used to perform CPR, then chest compression can be performed at constant rate and pressure, but cardiovascular images cannot be obtained using coronary angiography
Solution Approach 1:
The chest compression device is divided into multiple components: a back support, a U-shaped support, compression parts at both ends, and driving parts. This segmentation allows the compression function to be distributed while leaving the central area open for imaging, resolving the contradiction between providing consistent compression and enabling cardiovascular image acquisition.
Solution Approach 2:
The central compression function is extracted from the traditional single-point design and redistributed to both ends of the device. This extraction allows the central area to be cleared for coronary angiography imaging while maintaining effective chest compression through the distributed compression parts at the ends of the back support.
2Productivity
If the heart is compressed during CPR, then blood circulation can be maintained, but the heart and blood vessels become hidden from view
Solution Approach 1:
The compression force is applied from a different spatial dimension - instead of a single central point, compression is applied from both ends of the back support simultaneously. This dimensional change in compression application allows the heart and blood vessels to remain visible from above while still achieving effective compression for maintaining blood circulation.
3Reliability
If a mechanical chest compression device is used, then constant rate and pressure compression is achieved, but the device structure becomes complex
Solution Approach 1:
The driving parts connect both compression parts to the back support through a unified mechanical structure. This merging of the driving mechanism allows both compression parts to be controlled simultaneously with constant rate and pressure, achieving reliable compression control while avoiding the complexity of separate control systems for each compression point.
Data Source
AI summary
Disclosed is a chest compression device. The chest compression device includes a back for supporting the back of a patient, a compression part for compressing the chest of the patient, a U-shaped support for supporting the compression part, a pair of driving parts for allowing the support and the compression part connected thereto to perform a vertical reciprocating movement, and a control part for controlling the operation of the pair of driving parts.