Catheter In-Body Time Monitoring via Temperature Sensors
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Solution Overview
Problem
Current cryoablation procedures for treating cardiac arrhythmias lack real-time physiological monitoring, making it challenging to balance therapeutic energy delivery to target tissue while avoiding collateral tissue damage, which can lead to complications.
Innovation Solution
A system that includes a controller and temperature sensors to monitor the in-body time of a medical device, such as a catheter, during a cryoablation procedure, allowing for real-time tracking of the device's presence and duration within the patient's body, enabling more precise control and monitoring of the ablation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cryoablation is performed without real-time physiological monitoring, then the procedure is simpler and faster, but the precision of energy delivery control is reduced and risk of collateral damage increases
Solution Approach 1:
The patent implements real-time temperature monitoring of the catheter during cryoablation procedures. Temperature sensors continuously measure the catheter temperature and feed this data back to the control system, enabling dynamic adjustment of energy delivery parameters to maintain precise control while preventing collateral damage to surrounding tissues.
2Reliability
If real-time temperature monitoring is implemented, then the safety and precision of the procedure is improved, but the device complexity and cost increase
Solution Approach 1:
The monitoring system automatically tracks catheter temperature and calculates in-body time without requiring manual intervention. The controller autonomously processes temperature data from sensors, determines when the catheter is inside the body based on temperature thresholds, and maintains continuous monitoring throughout the procedure, reducing the need for additional operational complexity.
3Manufacturing precision
If the catheter remains in the body for longer duration to ensure complete ablation, then the therapeutic effect is improved, but the risk of collateral tissue damage increases
Solution Approach 1:
Real-time temperature monitoring provides continuous feedback on catheter conditions, enabling the operator to precisely control the duration and intensity of energy delivery. The system alerts when temperature thresholds are approached, allowing adjustment of treatment parameters to achieve complete ablation while preventing excessive energy delivery that could cause collateral damage to surrounding healthy tissues.
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
This system enhances the precision and safety of cryoablation procedures by providing real-time data on the catheter's in-body time, facilitating better energy delivery and reducing the risk of collateral damage to surrounding tissues.
Implementation Method 1
receive signals from at least one temperature sensor; detect insertion of the medical device into the patient by one or more of determining the temperature of the medical device
Implementation Method 2
a cryogenic fluid (such as nitrous oxide, or any other suitable fluid) is delivered under pressure to an interior of the one or more cryogenic balloons. Using this method, the extremely frigid fluid causes necrosis of the targeted tissue
Implementation Method 3
determining the change of temperature of the medical device with respect to time
Data Source
AI summary
A system including a controller to determine an in-body time of a medical device in a patient during a medical procedure. The controller to: receive signals from at least one temperature sensor; detect insertion of the medical device into the patient by one or more of determining the temperature of the medical device and determining the change of temperature of the medical device with respect to time; increment an in-body time counter to measure the in-body time of the medical device after detecting insertion of the medical device into the patient; detect that the medical device has been removed from the patient by determining that the change of temperature of the medical device with respect to time is negative; and stop incrementing the in-body time counter in response to detecting that the medical device has been removed.