Intravascular Monitoring Guidewire With Wireless Pressure Sensor
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Solution Overview
Problem
Current intravascular diagnosis equipment for assessing stenosis severity is bulky and requires multiple separate components, limiting its portability and efficiency in monitoring blood flow and pressure gradients within vascular vessels.
Innovation Solution
A portable intravascular diagnosis apparatus comprising a monitoring guidewire with a pressure sensor and a portable display unit that computes and displays fractional flow reserve (FFR) using wireless communication, allowing for real-time pressure measurements and flexible, compact design for improved diagnostic accuracy and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing equipment for monitoring intravascular measurements is used, then pressure gradient measurements can be obtained, but the equipment is bulky and requires multiple separate parts
Solution Approach 1:
The patent combines the pressure sensor, wireless communication module, and display unit into a single integrated intravascular catheter system. The display unit is directly coupled to the pressure sensor within the catheter assembly, eliminating the need for separate monitoring equipment and enabling portable real-time pressure gradient measurements.
2Measurement precision
If existing equipment for monitoring intravascular measurements is used, then pressure gradient measurements can be obtained, but the equipment requires bulky monitors
Solution Approach 1:
The patent replaces bulky mechanical monitoring equipment with a wireless communication system. The pressure sensor data is transmitted wirelessly to a display unit, eliminating the need for heavy wired monitors and enabling portable intravascular pressure measurement and visualization.
3Ease of operation
If a portable display unit is used, then portability and ease of operation are improved, but the unit must be disposed after predetermined number of uses or duration
Solution Approach 1:
The patent employs a disposable portable display unit with non-rechargeable batteries designed for single-use or limited-use scenarios. This approach prioritizes portability and ease of operation over long service life, with the unit intended to be disposed of after a predetermined number of uses or duration, eliminating the need for recharging or maintenance.
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
Enables precise and portable assessment of stenosis severity by calculating FFR through real-time pressure measurements, enhancing diagnostic accuracy and reducing the need for bulky equipment, facilitating more effective vascular treatment planning.
Implementation Method 1
the sensor is a pressure sensor and communication from the monitoring guidewire includes measurements from the pressure sensor
Data Source
AI summary
Intravascular diagnosis apparatus and methods are disclosed. In one aspect of the disclosed technology, a monitoring guidewire includes a core wire having or made of one or more of MP35N, L605, Elgiloy, and an alloy of nickel, cobalt, molybdenum and chromium, a sensor disposed in a distal region of the core wire, and a housing substantially coextensive with the core wire and surrounding the core wire, the housing being more flexible than the core wire for at least the distal portion of the housing.