Intraosseous Sample Removal Aid With Anti-Rotation Hub Grip
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Solution Overview
Problem
Existing methods for removing biological samples from intraosseous devices are inefficient and lack effective mechanisms to securely engage and manipulate the devices during the extraction process.
Innovation Solution
The use of an assistive device with a channel and protrusions to securely hold the intraosseous device, combined with an ejector mechanism to push the sample through the cannula, ensuring stable engagement and efficient sample removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual methods are used to remove biological samples from intraosseous devices, then the process is simple, but the efficiency and reliability of sample extraction are poor
Solution Approach 1:
The assistive device serves as an intermediary tool between the user and the intraosseous device. It includes a channel that receives the intraosseous device and protrusions that engage with the hub, allowing the user to manipulate the intraosseous device indirectly through the assistive device for reliable sample extraction
Solution Approach 2:
The assistive device is divided into distinct functional components: a channel portion that receives the intraosseous device cannula, a hub portion that engages with the hub, and protrusions that provide gripping surfaces. This segmentation allows each component to perform its specific function efficiently
2Reliability
If no securing mechanism is used, then the device is easy to manipulate, but the intraosseous device rotates and moves during extraction
Solution Approach 1:
The protrusions are designed with asymmetric gripping surfaces that engage with corresponding features on the hub. This asymmetric design prevents rotation of the intraosseous device while maintaining ease of manipulation through the protruding gripping surfaces
Solution Approach 2:
The assistive device acts as an intermediary that provides both securing and manipulation functions. The channel secures the intraosseous device while the protrusions enable controlled manipulation, resolving the contradiction between stability and ease of operation
3Reliability
If the channel allows hub passage, then the device is easy to insert, but the hub can move away during sample removal
Solution Approach 1:
The channel is segmented into two portions with different functions: a first portion with a larger opening that allows easy insertion of the intraosseous device, and a second portion with a smaller opening that prevents hub passage while maintaining the ease of insertion achieved by the first portion
Solution Approach 2:
Different sections of the channel have different dimensional characteristics. The first portion has a larger cross-sectional dimension for easy insertion, while the second portion has a smaller cross-sectional dimension to prevent hub passage, applying local quality variations to solve the contradiction
Data Source
AI summary
Assistive apparatuses or devices, kits, and methods for assisting with removal of a biological sample from an intraosseous device are described. Some of the present assistive apparatuses comprise: a body including a first end and a second end, and defining a channel with a first portion having a first transverse dimension, a second portion disposed between the first portion and the second end and having a second transverse dimension that is smaller than the first transvers dimension, and a longitudinal axis extending through the first portion and the second portion, the body further including a protrusion extending laterally outward relative to the longitudinal axis; where the channel is configured to receive a portion of an intraosseous device having a hub and a cannula extending from the hub, with the first portion of the channel receiving a part of the hub, and the second portion of the channel receiving a part of the cannula while preventing passage of the hub through the second portion.