Transversely Removable Suction Cup for Mechanical CPR Piston
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Solution Overview
Problem
Mechanical cardiopulmonary resuscitation (CPR) devices face challenges in maintaining consistent and effective chest compressions over extended periods, as rescuers can become fatigued, leading to inadequate compression quality.
Innovation Solution
The integration of a motor-driven piston with a suction cup in a mechanical CPR device allows for consistent and controlled chest compressions and decompressions, utilizing an adjustable piston adapter to accommodate varying patient sizes and ensuring proper alignment and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual CPR is performed by a rescuer, then initial compression can be provided, but rescuer fatigue leads to inadequate compression quality over extended periods
Solution Approach 1:
The patent replaces the manual mechanical system of rescuer-driven CPR with an automated mechanical system consisting of a motor-driven piston, linkage mechanism, and suction cup assembly. This substitution eliminates rescuer fatigue while maintaining consistent compression quality over extended periods, directly resolving the contradiction between compression reliability and duration.
2Adaptability or versatility
If a fixed piston configuration is used, then device structure is simple, but it cannot accommodate varying patient sizes
Solution Approach 1:
The patent implements adjustable piston adapters that can be configured in multiple positions along the piston rod, transforming a static fixed configuration into a dynamic adjustable system. This allows the device to adapt to different patient sizes and anatomical variations while maintaining reasonable structural complexity through modular design.
Solution Approach 2:
The piston system is divided into separable components including the piston rod, adjustable adapters, and suction cup assembly. This segmentation allows for flexible configuration to accommodate different patient sizes while keeping each individual component relatively simple in design.
3Ease of operation
If a suction cup is permanently attached to the piston, then attachment is secure, but replacement and adaptation to different patients is difficult
Solution Approach 1:
The suction cup is designed as a separate, removable component that can be independently attached to and detached from the piston assembly. This segmentation enables easy replacement and adaptation to different patients while maintaining secure attachment during use through the linkage mechanism and suction cup design.
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
This configuration ensures consistent and effective CPR compressions, reducing rescuer fatigue and improving the quality of chest compressions over longer durations, enhancing the reliability of mechanical CPR devices.
Implementation Method 1
pistons having suction cups
Data Source
AI summary
A piston assembly with a transversely removable suction cup, the piston assembly having a piston rod, a flange at an end of the piston rod, and a suction cup removably secured to the end of the piston rod. The piston rod has a longitudinal axis defining a longitudinal direction and a transverse direction that is substantially perpendicular to the longitudinal direction. The flange has a width in the transverse direction that is greater than a width of the piston rod in the transverse direction. The suction cup includes a receptacle configured to accept and secure the flange within the receptacle. The receptacle has an opening allowing the flange to be accepted into the receptacle in the transverse direction and to be removed from the receptacle in the transverse direction.