Battery Retention Ejection Element for Secure Defibrillator Replacement
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Solution Overview
Problem
The removal and replacement of batteries in portable medical devices, such as defibrillators, are often difficult and time-consuming, leading to delays in patient treatment and potential damage to the device due to battery movement within the compartment, which can disrupt electrical connections and reduce battery lifespan.
Innovation Solution
A battery retention and ejection element, comprising a monolithic structure with a retention portion and an ejection portion, is positioned within the battery receptacle to securely hold and efficiently remove batteries, utilizing a bent portion to orient the ejection portion at an acute angle relative to the retention portion, allowing for both retention and ejection forces to be exerted on the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If batteries are contained within a locked compartment, then battery security is improved, but battery replacement difficulty increases
Solution Approach 1:
The ejection element is pre-positioned within the battery compartment and automatically activates when the battery is inserted, eliminating the need for manual intervention during battery replacement. The element stores ejection force in advance and releases it automatically, resolving the contradiction between secure enclosed storage and easy battery replacement.
2Ease of operation
If batteries are affixed to the exterior of the medical device, then battery replacement ease is improved, but connection reliability worsens
Solution Approach 1:
The invention merges the advantages of both interior and exterior battery placement by using an automatic ejection element that provides secure retention when batteries are inside the compartment while enabling easy removal similar to exterior placement. The ejection element combines retention function with automatic ejection capability in a single integrated mechanism.
3Ease of operation
If batteries are allowed to move within the compartment, then battery installation ease is improved, but electrical connection reliability worsens
Solution Approach 1:
The ejection element is designed to be dynamically responsive to battery insertion, automatically adjusting its state from retracted to engaged. This dynamic behavior allows easy battery installation while automatically providing retention force to prevent unwanted movement and maintain electrical connection reliability.
4Reliability
If manual battery retention mechanisms are used, then battery security is improved, but battery replacement time increases
Solution Approach 1:
The ejection element performs the retention and ejection functions automatically without requiring manual operation. The system serves itself by detecting battery insertion and automatically activating the ejection mechanism, eliminating the time-consuming manual steps of opening compartments, unlocking mechanisms, and manually removing batteries.
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 solution reduces battery movement within the device, prevents electrical connection disruptions, and facilitates quick battery replacement, thereby minimizing treatment delays and extending battery and device lifespan.
Implementation Method 1
a bent portion to orient the ejection portion at an acute angle relative to the retention portion
Implementation Method 2
exert a retention force on the battery in a first direction
Implementation Method 3
exert an ejection force on the battery in a second direction different than the first direction
Data Source
AI summary
Systems to retain a battery within, and to eject a battery from, a battery receptacle of a medical device, such as a portable defibrillator, are described. A battery receptacle of a medical device includes an element that is configured to engage an inserted battery to prevent, or reduce, movement of the battery within the receptacle and to assist with removing the battery from the receptacle. In an example, the element is a monolithic structure that includes a retention portion and an ejection portion. The retention portion is positioned at a side wall of the battery receptacle, and the ejection portion terminates in a free end positioned a distance from the side wall. When the battery is inserted into the battery receptacle, the retention portion exerts a retention force on a side surface of the battery, and the ejection portion exerts an ejection force on an end surface of the battery.