Wireless Rotor-Stator Data Link for Rotary Medical Scanners

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Solution Overview

Problem

Existing rotary medical devices face challenges with large space occupation and inconvenient integration due to cable-based data transmission between the rotor and stator.

Innovation Solution

Implement a bidirectional wireless transmission system using transceivers on the rotor and stator for medical devices, utilizing optical or electromagnetic waves to transmit scanning data and control signals, eliminating the need for physical cables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cable-based data transmission is used between rotor and stator, then reliable data transmission is achieved, but large space occupation and inconvenient integration occur

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidspace occupation
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent replaces the mechanical cable-based transmission system with a wireless transmission system using electromagnetic waves or optical waves. The transceiver on the rotor and transmitter on the stator establish wireless bidirectional communication, eliminating physical cables and thereby reducing space occupation while maintaining transmission reliability through protocol-level error handling and retransmission mechanisms.

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

Solution Approach 2:

The patent introduces wireless electromagnetic waves or optical waves as an intermediary medium to transmit data between the rotor and stator. This intermediary replaces the direct physical connection of cables, allowing data to pass through the air gap or optical path without requiring physical contact, thus solving the space occupation problem while preserving communication reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If cable-based data transmission is used between rotor and stator, then data transmission function is achieved, but integration convenience deteriorates

Engineering Contradiction:
Improvedata transmission efficiencyVSAvoidintegration convenience
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent substitutes the complex mechanical cable routing and connection system with a wireless transmission system. The transceiver and transmitter components require minimal installation infrastructure compared to cable management, significantly improving integration convenience while maintaining or enhancing data transmission efficiency through direct wireless links.

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

Solution Approach 2:

The patent extracts the data transmission function from the physical cable infrastructure and implements it through wireless electromagnetic or optical waves. This extraction eliminates the need for cable routing, connectors, and associated mechanical components, thereby simplifying the integration process while preserving the core data transmission functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

3Volume of moving object

If wireless bidirectional transmission is implemented, then space occupation is reduced, but transmission system complexity increases

Engineering Contradiction:
Improvespace occupationVSAvoidtransmission system complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent designs the transceiver and transmitter as multi-functional components that handle both data transmission and reception, as well as signal processing and error correction. This universality consolidates multiple functions into single components, reducing the overall number of parts needed and offsetting the increased complexity of wireless communication protocols through functional integration.

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

Solution Approach 2:

The patent implements bidirectional transmission by having the rotor's transceiver and stator's transmitter replicate each other's communication capabilities. Each side has equivalent functional copies of the transmission and reception mechanisms, allowing symmetric wireless communication without requiring complex asymmetric routing or additional intermediary components, thereby managing system complexity through symmetry and replication.

Inventive Principle:
Principle #26Copying

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 solution reduces space occupation, simplifies integration, and enhances data transmission efficiency by eliminating cable constraints.

Implementation Method 1

The bidirectional transmission between the first transceiver and the second transceiver is a transmission via wave-based signals

Methodology Applied
Scientific EffectElectromagnetic wave transmission: Electromagnetic Induction

Implementation Method 2

the bidirectional transmission between the first transceiver and the second transceiver is the transmission via optical waves

Methodology Applied
Scientific EffectOptical wave transmission: Light

Implementation Method 3

The wavelength division demultiplexer is configured to divide the first optical beam into a plurality of second optical beams of a plurality of wavelengths

Methodology Applied
Scientific EffectWavelength division multiplexing: Diffraction Grating

Implementation Method 4

the filter is configured to filter the plurality of second optical beams

Methodology Applied
Scientific EffectOptical filtering: Filter (optical)

Data Source

PatentEP4708732A1Transmission systems of medical devices and medical devices
Publication Date: 2026.03.11 SHANGHAI UNITED IMAGING HEALTHCARE
  • EP4708732A1 patent drawingFigure 1
  • EP4708732A1 patent drawingFigure 2
  • EP4708732A1 patent drawingFigure 3

AI summary

Embodiments of the present disclosure provide a transmission system of a medical device, comprising a first transceiver on a rotor and a second transceiver on a stator, wherein the first transceiver on the rotor is configured to transmit scanning data to and receive control signals from the second transceiver on the stator; the second transceiver on the stator is configured to transmit the control signals to and receive the scanning data from the first transceiver on the rotor; and a bidirectional transmission between the first transceiver and the second transceiver is wireless.