Wireless Transceiver for Blood Pressure Monitoring

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing blood pressure transducers and monitors face compatibility issues with miniaturized semiconductor sensors, requiring additional circuitry and equipment, and pose challenges with electrical safety and user-friendliness due to physical connections and sterilization requirements.

Innovation Solution

A wireless communication link between a transceiver unit and a communication unit eliminates the need for physical connections, allowing the transceiver unit to generate and transmit pressure data as a data stream using radio frequency signals, compatible with standard connectors like BP22 or USB, and ensuring safe and user-friendly operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If physical connections are used between transducer and monitor, then electrical safety and signal transmission are ensured, but sterilization requirements and device complexity increase

Engineering Contradiction:

Improveelectrical safetyVSAvoidsterilization requirements

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical physical connection system with an electromagnetic wireless communication system. The transceiver unit transmits pressure data via radio frequency signals to the communication unit, eliminating the need for physical cables and connectors, thereby removing sterilization requirements while maintaining reliable data transmission

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If additional circuitry is added to ensure compatibility between sensors and monitors, then measurement accuracy is improved, but device complexity and cost increase

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidadditional circuitry

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The transceiver unit autonomously performs signal conditioning, analog-to-digital conversion, and data formatting functions. The sensor self-conditions its output signal within the transceiver unit, eliminating the need for external circuitry in the monitor to process raw sensor signals, thereby maintaining measurement accuracy while reducing overall system complexity

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The transceiver unit is designed as a universal interface that can work with different sensor types and communicates with various monitor systems using standard protocols. This multi-functional design eliminates the need for manufacturer-specific additional circuitry, achieving compatibility and measurement accuracy across different device combinations

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Volume of moving object

If miniaturized semiconductor sensors are used, then sensor size and cost are reduced, but compatibility with existing monitors and electrical safety become problematic

Engineering Contradiction:

Improvesensor sizeVSAvoidcompatibility with existing monitors

Core Design Contradiction:

Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The transceiver unit serves as an intermediary device between the miniaturized sensor and the existing monitor system. It receives signals from the small sensor, processes and conditions them, converts to digital format, and transmits wirelessly to the monitor, thereby enabling compatibility without requiring changes to the sensor or monitor hardware

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the traditional mechanical/electrical connection system with wireless electromagnetic communication. This substitution enables miniaturized sensors to communicate with existing monitors without physical cable connections, solving both the compatibility issue and electrical safety concerns while maintaining the benefits of small sensor size

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 solution provides a reliable, user-friendly, and cost-effective system for monitoring blood pressure by enabling seamless integration of miniaturized sensors with existing monitors without the need for additional circuitry or physical connections, enhancing accuracy and reducing complexity and costs.

Implementation Method 1

the transceiver unit to generate and transmit pressure data as a data stream using radio frequency signals

Methodology Applied

Scientific EffectRadio frequency signal generation: Electromagnetic Induction

Data Source

PatentUS11813086B2Measurement system

Publication Date: 2023.11.14 ST JUDE MEDICAL COORDINATION CENT

AI summary

A measurement system includes: a sensor wire comprising an insertable portion configured to be inserted in a blood vessel of a patient's body; a sensor disposed at the insertable portion at a distal end of the sensor wire, wherein the sensor is configured to provide an output indicative of a temperature in the blood vessel of the patient's body, when inserted inside the blood vessel of the patient's body; and a transceiver unit configured to transfer information related to the output of the sensor to an external communication module using a frequency hopping technique. The transceiver unit comprises a housing adapted to be connected to a proximal end of the sensor wire and configured to remain external to the patient's body.