Medical Device Speech Synthesis for Consistent Patient Guidance

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Solution Overview

Problem

Existing medical devices face challenges in effectively communicating with patients during examinations or treatments due to the need for real-time speech transmission, which is often dependent on the operator's intelligibility and can be disrupted by the device's environment, such as in MRI scanners.

Innovation Solution

Integration of a speech synthesis system that generates natural language acoustic output, allowing for consistent and familiar voice communication with patients, even when operators change or are distracted, using a speech-to-speech conversion system that can be integrated or remotely connected, and a large language model for context-specific responses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If direct real-time speech transmission is used to communicate with the patient, then communication capability is provided, but the intelligibility depends on the speaker and can be disrupted by the device environment

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidspeaker dependency
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses a speech synthesis system that generates synthetic speech from text input, creating a consistent virtual speaker that does not depend on the actual operator's voice quality or speaking ability. The system copies only the necessary information content while eliminating variability in speaker performance.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical system of direct human speech transmission with an electronic speech synthesis system. This substitution eliminates the limitations of human speakers (intelligibility variations, environmental disruptions) while maintaining the communication function through synthesized acoustic output.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If operator speech is transmitted directly to the patient, then communication is enabled, but consistency of voice quality is lost when operators change

Engineering Contradiction:
Improveoperator flexibilityVSAvoidvoice consistency
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The speech synthesis system creates a consistent virtual voice identity that remains unchanged regardless of which operator is present. The system copies the essential communication function while maintaining stable voice characteristics through synthetic generation rather than relying on individual operator voices.

Inventive Principle:
Principle #26Copying

3Reliability

If speech synthesis system is integrated into the medical device, then communication reliability is improved, but device complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidsystem integration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The speech synthesis system is designed to be a self-contained module that can perform multiple communication functions (generating various instructions, reassurances, and information) through a single text-to-speech conversion mechanism, reducing the need for multiple separate communication systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4632731A1Medical device with synthetic speech output and method for training
Publication Date: 2025.10.15 SIEMENS HEALTHINEERS AG
  • EP4632731A1 patent drawingFigure 1
  • EP4632731A1 patent drawingFigure 2
  • EP4632731A1 patent drawingFigure 3

AI summary

The invention relates to a medical device with a speech synthesis system and a method for performing a treatment or examination using the medical device. In one step of the method, a patient is positioned relative to the medical device for an examination or treatment. A voice instruction is output by the medical device using the speech synthesis system, and an examination step or treatment step is performed on the patient using the medical device.