PICC Line Connector Cap Removal Tool
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Solution Overview
Problem
The current methods for removing the cap from a PICC line connector often result in the connector becoming stuck, leading to potential breakage when using metal hemostat pliers, which can cause costly and painful replacement procedures.
Innovation Solution
A custom-made instrument from similar hardness plastic, designed to match the dimensions of the PICC line connector and cap, applies gentle torsional force to safely remove the cap without risking connector breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a metal hemostat plier is used to remove a stuck cap from the PICC line connector, then the cap can be forcibly removed, but the connector may crack or break causing pain and expense
Solution Approach 1:
The patent introduces a plastic intermediary tool that fits between the user's hands and the PICC line components. This plastic intermediary transfers the twisting force from the user to the cap without concentrating crushing forces on the connector, thereby enabling cap removal while protecting the connector from breakage
Solution Approach 2:
The patent changes the material parameter of the removal tool from metal (hemostat plier) to plastic. This material parameter change allows the tool to apply sufficient torsional force to remove the cap while being gentle enough to prevent connector cracking, thus resolving the contradiction between removal effectiveness and connector safety
2Object-affected harmful factors
If a custom plastic instrument is used to apply gentle torsional force, then connector breakage is avoided, but the instrument complexity increases compared to simple manual removal
Solution Approach 1:
The patent divides the removal tool into two separate plastic components: one component fits over the connector to protect it, and the other component engages with the cap for twisting. This segmentation allows each component to be simple in structure while collectively providing the protective function, thus reducing overall complexity compared to a single complex tool
Solution Approach 2:
The patent creates plastic copying tools that replicate the geometry of the PICC line components (connector and cap). These copied plastic forms allow the tool to interface gently with the original components, providing protection and force transmission without requiring complex mechanical structures
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 use of this custom instrument ensures a safe and repeatable process for removing the PICC line connector cap, reducing the risk of connector damage and associated complications, while providing a consistent and user-independent method.
Implementation Method 1
replacing the crushing force of a metal hemostat plier onto delicate plastic parts with the gentle torsional force of a custom instrument
Data Source
AI summary
The present invention relates to a system consisting of one or more instruments, which provides a simple method for detaching a connector cap from the connector as this is the juncture utilized to administer fluids into the body via an IV peripherally inserted central catheter, commonly know as a PICC or PIC line. This device enables one to avoid potential breakage of the PICC line connector cap, which can occur utilizing current procedures. The system is put into place whereby the portion of the instrument associated with the fixed end of the PICC line (that which is implanted in the patient) is slid over the PICC line connector and held stationary, while the portion of the accompanying instrument associated with the free end of the PICC line is secured around the connector cap and rotated counterclockwise until the connector cap assembly is loose enough to be separated without further aid.