Multi-Part Inserter With Guided Single-Puncture Placement
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Solution Overview
Problem
Existing medical insertion devices cause physiological and psychological distress, are prone to contamination, and require separate insertion of cannula and sensor parts, leading to potential infection and incorrect dosage administration.
Innovation Solution
A compact inserter device that simultaneously inserts multiple transcutaneous parts, such as cannulas and sensors, using introducer needles and springs for guided insertion and automatic retraction, ensuring safety and user-friendliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transcutaneous parts are inserted separately using individual inserters, then each part can be inserted individually, but the patient needs to undergo multiple separate insertion procedures which increases time, discomfort, and potential for contamination
Solution Approach 1:
The patent combines multiple inserters into a single integrated device that can simultaneously insert multiple transcutaneous parts (cannula and sensor) through a single skin puncture. This merging eliminates the need for separate insertion procedures, reducing contamination risk and improving insertion efficiency by performing multiple functions in one operation.
Solution Approach 2:
The inserter device is designed with multi-functionality to handle both cannula insertion and sensor insertion through a single device. The universal design allows the same inserter to accommodate different types of transcutaneous parts, eliminating the need for multiple specialized inserters and reducing the overall number of skin punctures required.
2Object-affected harmful factors
If a single inserter device is used for simultaneous insertion, then the number of skin punctures is reduced, but the device complexity increases
Solution Approach 1:
The inserter device employs a nested structure where the sensor is positioned within or alongside the cannula insertion path. The multiple transcutaneous parts are arranged in a compact, nested configuration that allows them to be inserted through a single puncture site while maintaining individual functionality. This nesting reduces the number of skin punctures without requiring an excessively complex external device structure.
Solution Approach 2:
The inserter device is segmented into distinct functional modules that can be independently controlled. Each transcutaneous part has its own insertion mechanism and control system within the unified device, allowing for independent operation while maintaining overall device integration. This segmentation manages complexity by creating modular, manageable components within the single inserter.
3Reliability
If the inserter automatically retracts after insertion, then safety is improved by preventing needlestick injuries, but the mechanism complexity increases
Solution Approach 1:
The inserter device incorporates an automatic retraction mechanism that activates itself after successful insertion of the transcutaneous parts. The device uses spring-loaded or motorized systems that automatically retract the needles and cannulas back into the device housing without requiring manual intervention. This self-service retraction improves safety by eliminating the need for users to manually handle sharp components, while the automation manages the complexity through standardized mechanical or electrical systems.
Solution Approach 2:
The retraction mechanism is pre-positioned and pre-loaded within the inserter device, ready to activate immediately after insertion. The spring-loaded components are compressed during the insertion phase and automatically expand to retract the needles. This preliminary preparation of the retraction system ensures safety through automatic operation while managing complexity through pre-engineered mechanical systems that require minimal control input.
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
The device provides safe, hygienic, and accurate simultaneous insertion of medical devices, reducing discomfort and contamination risks while ensuring proper dosage administration.
Implementation Method 1
promoting means, in this embodiment a spring, for promoting the functional first part and the functional second part from the shelf position to the inserted position
Data Source
AI summary
An inserter (100) for subcutaneous insertion of multiple transcutaneous parts (212, 222), the multiple transcutaneous parts at least comprising: a first transcutaneous part (212) comprising a first body (214) from where a first subcutaneous part (216) extends, and a second transcutaneous part (222) comprising a second body (224) from where a second subcutaneous part (226) extends, wherein the inserter comprises: support means for guiding the multiple transcutaneous parts during insertion of the multiple transcutaneous parts, and activation means for activating the inserter, whereby simultaneously insertion of the multiple transcutaneous parts subcutaneously in the patient's skin is initiated.