Stabilization Guide Apparatus for Implanted Access Port Needle Insertion
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Solution Overview
Problem
Existing methods for accessing subcutaneously implanted access ports in patients are inefficient due to the difficulty in stabilizing the port and accurately guiding needles to penetrate the septum, leading to potential movement of the port and inaccurate insertion.
Innovation Solution
An insertion device with a stabilizing portion to secure the access port and a guide portion to direct the needle along a predetermined path, ensuring accurate penetration of the septum and facilitating fluid communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual access to implanted access port is attempted without stabilization, then the procedure can be performed without additional devices, but the port moves about in the subcutaneous tissue pocket leading to inaccurate needle insertion
Solution Approach 1:
The stabilization device acts as an intermediary component between the needle and the access port. It provides a stable platform that mediates the interaction, allowing accurate needle insertion while preventing port movement in the subcutaneous tissue pocket.
Solution Approach 2:
The stabilization device is designed as a disposable component that is used temporarily during the needle insertion procedure. After serving its purpose of stabilizing the port and guiding the needle, it is discarded, eliminating the need for complex reusable stabilization systems.
2Reliability
If the access port is stabilized with an insertion device, then needle insertion accuracy is improved, but the device placement and removal process becomes more complex
Solution Approach 1:
The stabilization device incorporates dynamic features that allow it to adapt to the contours of the access port and surrounding tissue. The flexible membrane and positioning mechanisms enable the device to conform and stabilize reliably while maintaining ease of placement and removal through simple manual manipulation.
3Manufacturing precision
If a guide portion is added to direct the needle along a predetermined path, then penetration accuracy of the septum is improved, but the device structure becomes more complex
Solution Approach 1:
The guide portion is segmented into discrete functional elements that can be independently manufactured and assembled. This segmentation allows for precise geometric features to be created in each segment, which when assembled form the complete guidance path for needle penetration of the septum.
Solution Approach 2:
The guide portion serves multiple functions: it directs needle alignment, defines the penetration path, and works in conjunction with the stabilization portion. This multi-functionality reduces the need for separate dedicated components, thereby managing overall device complexity while maintaining high penetration accuracy.
Data Source
AI summary
An insertion device to assist in accessing an access port that has been subcutaneously implanted in the body of a patient is disclosed. The implanted access port is accessed by a needle of a needle assembly, such as a needle-based infusion set. The insertion device may include a body having a stabilizing portion and a guide portion. The stabilizing portion stabilizes a position of the implanted access port when the body is placed on the skin of the patient atop the implanted access port. The guide portion is designed to guide a needle of the needle assembly along a predetermined path such that the needle transcutaneously pierces a septum of the implanted access port.