Sensor Pedestal Recess Geometry for Stable Introducer Removal
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Solution Overview
Problem
Existing glucose sensors face challenges in packaging and removal of the sensor introducer, particularly when the insertion site is unconventional, as it is difficult to handle the needle-containing introducer while positioning the sensor.
Innovation Solution
A pedestal is designed to be coupled to the glucose sensor assembly, providing a mechanism to securely hold the sensor in place during introducer removal, allowing single-handed operation even at hard-to-reach locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor introducer is packaged with the glucose sensor, then the needle is protected during shipping, but it becomes difficult to remove the sensor introducer at unconventional sensor sites
Solution Approach 1:
The device is divided into separate functional components: the sensor introducer assembly and the pedestal. The pedestal remains attached to the sensor during insertion but can be separated for introducer removal. This segmentation allows the pedestal to provide stability at the sensor site while enabling easy removal of the introducer by detaching it from the pedestal.
Solution Approach 2:
The pedestal serves as an intermediary component between the sensor introducer and the sensor. It provides a stable base during insertion and facilitates introducer removal through its recess feature, acting as a mediator that enables safe handling and removal without requiring two-handed operation at difficult-to-reach sites.
2Object-affected harmful factors
If the sensor introducer is held during removal, then safe needle handling is achieved, but single-handed operation is not possible at hard-to-reach locations
Solution Approach 1:
The pedestal provides self-service functionality by incorporating a recess that automatically engages with the sensor introducer. This design allows the introducer to be removed by simply pulling it from the recess without requiring the user to manually hold both the sensor and the introducer, enabling single-handed operation while maintaining safe needle handling.
Solution Approach 2:
The pedestal is pre-positioned and attached to the sensor before introducer removal. The recess is pre-configured to engage the introducer, so when removal is needed, the user only needs to pull the introducer from the pre-positioned recess rather than coordinating multiple hand movements, enabling safe single-handed operation.
3Ease of operation
If the pedestal includes a recess for introducer removal, then single-handed operation is enabled, but the device structure becomes more complex
Solution Approach 1:
Rather than making the entire pedestal complex, the recess feature is localized to a specific area of the pedestal where introducer engagement is needed. This localized modification provides the necessary functionality for single-handed removal while keeping the rest of the pedestal structure simple and manufacturable.
Data Source
AI summary
A pedestal for a physiological characteristic sensor assembly and a physiological characteristic sensor assembly is provided. The pedestal includes a first side opposite a second side. The pedestal includes a sidewall that interconnects the first side and the second side. The pedestal also includes a first end opposite a second end. The pedestal includes at least one post that extends from the first side adjacent to the first end to couple the pedestal to a physiological characteristic sensor of the physiological characteristic sensor assembly. The pedestal also includes a recess defined in the sidewall at the second end. The recess has a first portion in communication with a second portion. The first portion has a first length that is less than a second length of the second portion along a perimeter of the sidewall, and the second portion is positionable to apply a force to the physiological characteristic sensor.