Spring-Latch Coupler for Mechanical CPR Module Detachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mechanical CPR devices with removable compression modules face challenges in accommodating larger patient interface devices due to size constraints, making it difficult to securely attach and detach them from the compression mechanism, especially when storing the coupler in a deployable position.
Innovation Solution
A coupler system with a first adapter and a second adapter that securely connects and disconnects the patient interface device from the compression module, utilizing a spring latch and catch mechanism to facilitate linear movement and temporary attachment, allowing for easy removal and storage of the compression module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the patient interface device is made larger to ensure secure attachment strength, then the connection strength to the chest is improved, but the device cannot be accommodated within the bore size constraints of the compression module
Solution Approach 1:
The coupler is stored nested within the compression module during non-use, and deployed outward when needed. The coupler's collapsible structure allows it to fit within the bore constraints while expanding to provide sufficient attachment surface area for secure connection to the patient interface device
Solution Approach 2:
The coupler transitions from a collapsed stored state to an expanded deployed state. The dynamic structure allows the coupler to adapt its size - compact during storage within the bore, and expanded during operation to provide adequate connection strength
2Reliability
If the coupler is made permanently fixed to provide secure attachment, then the connection reliability is improved, but the ease of removing and storing the compression module deteriorates
Solution Approach 1:
The coupling system is divided into separable components: the coupler attached to the compression module, and the patient interface device attached to the patient. This segmentation allows the compression module to be easily removed by detaching the coupler, while maintaining reliable connection during use through the latch mechanism
Solution Approach 2:
The coupler acts as an intermediary component between the compression module and patient interface device. It provides a standardized interface with latch mechanisms that ensure reliable connection during operation, while allowing easy detachment when needed for module removal or patient transfer
3Volume of moving object
If the coupler is made collapsible to enable storage within the compression module, then the device compactness is improved, but the complexity of the coupling mechanism increases
Solution Approach 1:
The coupler employs self-latching mechanisms that automatically engage and disengage without requiring complex external controls. The spring-loaded latches self-actuate based on the expansion and collapse motion, reducing the need for additional actuators or control systems
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
Enables secure attachment and detachment of the patient interface device to the compression module, ensuring effective operation and storage of mechanical CPR devices, even when space constraints are a concern, by translating linear movement between adapters and providing a non-destructive release mechanism.
Implementation Method 1
a spring latch and catch mechanism to facilitate linear movement and temporary attachment
Data Source
AI summary
The invention provides, in some aspects, a coupler for inline connection of two bodies where one of the bodies provides linear motion to the other. Further aspects of the invention provide such a coupler comprising a first adapter linearly engaging a second adapter in a capture B. The first adapter defines a capture C for temporarily securing a first compatible body, and the second adapter defines a connector for securing a second compatible body. The capture B and the connector are oriented one to the other such that linear movement of the first compatible body translates into linear movement of the second compatible body. The capture B releases the secured compatible body upon pressing together of the first and second adapter. In a particular embodiment, a coupler of the type described above joins a compression module of a mechanical CPR device to a patient interface of that device.