Compact Manual Cannula Insertion Aid With Adjustable Jaw Clearance
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Solution Overview
Problem
Existing manual cannula insertion devices are cumbersome, prone to being forgotten, and difficult to handle, especially for patients who need to repeatedly insert cannulas into cannula holders.
Innovation Solution
A compact manual insertion aid with jaws that form a receiving opening for engaging a cannula hub, allowing for easy handling and attachment to a key ring or zipper, featuring adjustable clearance and angled surfaces for secure engagement and guided insertion, and optionally including a filing aid for insulin reservoirs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional inserter device is used for cannula insertion, then the cannula can be inserted securely with predetermined force, but the device becomes cumbersome and prone to being forgotten due to its size and weight
Solution Approach 1:
The traditional inserter device is divided into two separate components: a compact manual insertion aid that the patient carries, and a reusable inserter device that remains with the medical professional. The manual insertion aid includes a handle with jaws that can manually grasp and guide the cannula hub, eliminating the need for the patient to carry the entire complex inserter device while still enabling secure cannula insertion.
Solution Approach 2:
The manual insertion aid extracts the essential functions of cannula insertion (grasping the cannula hub, guiding insertion, and applying controlled force) into a separate, compact tool that can be carried independently from the main inserter device. This allows the patient to carry only the necessary components for insertion while the reusable device remains with the medical professional.
2Ease of operation
If the manual insertion aid has jaws with large clearance for easy engagement, then the cannula hub can be easily grasped, but the precision and control during insertion is reduced
Solution Approach 1:
The jaws are designed with adjustable clearance that can be modified during operation. The jaws can be positioned to provide initial loose clearance for easy engagement of the cannula hub, then adjusted to provide tighter clearance and greater precision control during the actual insertion process. This dynamic adjustment capability allows the same tool to serve both ease of engagement and precision insertion requirements.
Data Source
AI summary
The present invention relates to a manual insertion aid for inserting a cannula unit into a cannula holder. The manual insertion aid comprises a handle and two jaws projecting from the handle and forming a receiving opening that is configured for engaging with a cannula unit. In order to provide a simple and lightweight insertion aid, the minimum clearance between the two jaws is greater than or equal to 1.5 mm and smaller than or equal to 7 mm, and wherein the maximum projecting length of each of the two jaws from the handle is greater than or equal to 4 mm and smaller than or equal to 18 mm.