Catheter Position Tracking With Real-Time Deviation Alerts
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Solution Overview
Problem
Existing catheter placement methods, such as X-ray machines and electromagnetic coil systems, are cumbersome, inaccurate, and lack real-time feedback for precise positioning, leading to potential patient harm from erroneous placement.
Innovation Solution
A medical device position notification system with sensors and a processor that provides real-time visual feedback on a display, using multiple sensors to confirm catheter placement and alert healthcare providers of deviations from the intended path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray machines are used to locate catheters, then catheter position can be determined, but the system becomes large, heavy, expensive, and exposes patients to high radiation
Solution Approach 1:
The patent replaces the mechanical X-ray imaging system with an electromagnetic field-based sensor system. The sensor incorporates an electromagnetic coil that detects position through electromagnetic induction, eliminating the need for large X-ray equipment while providing continuous real-time position feedback during catheter insertion.
Solution Approach 2:
The patent creates a simplified electromagnetic model of the catheter position that mirrors the physical position without requiring complex imaging. The sensor system generates an electromagnetic representation of catheter location that can be displayed and interpreted without needing actual X-ray images.
2Measurement precision
If X-ray machines are used to locate catheters, then catheter position can be determined, but the process becomes time-consuming and delays treatment
Solution Approach 1:
The patent implements continuous real-time position monitoring through the electromagnetic sensor system. Unlike intermittent X-ray imaging, the sensor continuously tracks catheter position throughout the insertion process, providing uninterrupted feedback that eliminates repeated imaging sessions and accelerates the overall procedure.
Solution Approach 2:
The sensor system is pre-integrated into the catheter structure before insertion begins. This preliminary integration ensures that position detection capability is already in place and operational from the moment of insertion, eliminating setup time and enabling immediate real-time monitoring.
3Measurement precision
If electromagnetic coil locating receiver is used, then catheter position can be determined, but the receiver must remain stationary and cannot accommodate patient movement
Solution Approach 1:
The patent transforms the stationary receiver system into a dynamic sensor system integrated with the moving catheter. The electromagnetic coil sensor moves with the catheter during insertion and adapts to patient movement, maintaining continuous position detection capability throughout the procedure without requiring the receiver to remain fixed.
Solution Approach 2:
The electromagnetic coil sensor is nested within or integrated into the catheter structure itself. This nesting allows the detection system to move with the catheter and adapt to patient anatomy and movement, eliminating the need for an external stationary receiver while maintaining measurement precision.
4Measurement precision
If electromagnetic coil system is used, then catheter position can be determined, but the system provides only generic warnings without specific anatomical reference
Solution Approach 1:
The patent enhances the generic position data with local anatomical context by comparing sensor readings against patient-specific anatomical landmarks and expected catheter pathways. This provides localized, anatomy-specific guidance and warnings rather than generic alerts, preserving critical spatial information about the catheter's relationship to specific bodily 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
Enhances catheter placement accuracy by offering real-time visual alerts and confirmation, reducing the risk of misplacement and associated complications.
Implementation Method 1
at least one sensor associated with the medical device communicates with the processor via an electrical connection to deliver signals from the sensor containing information relating to a position of the medical device within a patient's body measured by the at least one sensor
Data Source
AI summary
A medical device position notification system including a medical device and at least one sensor associated with the medical device, a processor, and a display device. The medical device is configured to be inserted into an orifice of the patient. The sensor measures information related to the position of the medical device in the patient's body, and communicates the information with the processor in real-time. The display device is coupled to the processor and is configured to display a tracing path of the position of the medical device in real-time. The display device is further configured to display a notification of the position of the medical device within the patient's body, such as a notification alert that the medical device has deviated from a predetermined path.