Infusion Pump Battery Compartment for Dual Power Source Retention
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Solution Overview
Problem
Ambulatory infusion pumps require improved power delivery systems to continuously provide vital medications and nutrition to patients while mobile, as existing systems are not sufficiently efficient for long-term, continuous use.
Innovation Solution
The ambulatory pump design includes a battery compartment that can accommodate both battery packs and household batteries, featuring a rotatable retaining member and latching mechanism for secure power source installation, ensuring continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a battery compartment is designed to accommodate both battery packs and household batteries, then power source versatility is improved, but device complexity increases
Solution Approach 1:
The battery compartment is designed with a universal cavity that can accommodate both battery packs and household batteries. The retaining member with rotatable profile and latching mechanism provide a single interface that secures different battery types, eliminating the need for separate compartments for different power sources.
2Reliability
If a rotatable retaining member with profile is used to hold household batteries, then battery security is improved, but device complexity increases
Solution Approach 1:
The retaining member is designed to be rotatable rather than fixed, allowing it to dynamically adjust its position. When the access cover closes, the retaining member rotates to engage with the battery holder, providing secure retention. This dynamic mechanism replaces multiple static retaining structures.
Solution Approach 2:
The rotatable retaining member automatically engages with the battery holder through its rotation during cover closure, securing the batteries without requiring additional fastening actions. The mechanism self-secures the batteries as part of the cover closing process.
3Reliability
If a latching mechanism is added to secure the access cover, then device reliability is improved, but ease of operation decreases
Solution Approach 1:
The latching mechanism automatically engages when the access cover is closed, securing the cover without requiring separate latching actions. The mechanism self-activates through the cover closure motion itself, providing secure fastening while maintaining ease of operation.
Data Source
AI summary
An ambulatory pump and a battery compartment for use in an ambulatory pump. The ambulatory pump includes a pump, a controller coupled to the pump for controlling the pump to deliver fluid to a patient, and a battery compartment electrically coupled to the pump and the controller. The battery compartment defines a cavity for alternately receiving a battery pack and a plurality of household batteries. The battery compartment is covered by an access cover that includes one or more rotatable retaining members that allow for the cavity to accept and hold the battery pack or household batteries.