X-Ray Attenuation Control via Laser Volume Estimation

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Solution Overview

Problem

Current X-Ray machines require time-consuming adjustments of advanced settings to achieve optimal X-Ray strength for objects of varying volumes, leading to substandard imagery due to either excessive or insufficient X-Ray energy.

Innovation Solution

An automated method estimates the volume of an object using range finding devices like lasers, allowing the X-Ray machine to automatically select and adjust X-Ray strength based on the estimated volume, incorporating parameters such as wavelength, frequency, amplitude, power, energy, voltage, and current.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual adjustment of X-Ray settings is used, then X-Ray strength can be precisely controlled, but the process becomes time-consuming and complex

Engineering Contradiction:
ImproveX-Ray strength control precisionVSAvoidTime for setting adjustment
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system automatically determines object volume and selects appropriate X-Ray strength settings without requiring manual user input. The controller autonomously adjusts parameters based on measured object characteristics, eliminating time-consuming manual configuration while maintaining optimal imaging conditions

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-establishes multiple X-Ray strength settings corresponding to different object volume ranges. Before actual imaging, the system measures object volume and quickly selects the pre-configured appropriate setting, avoiding time-consuming manual adjustment while ensuring precise control

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If X-Ray strength is not adjusted for object volume, then the operation is simple, but the imagery quality becomes substandard

Engineering Contradiction:
ImproveOperational simplicityVSAvoidImagery quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system automatically measures object volume using range-finding devices and autonomously selects appropriate X-Ray strength settings. This self-service capability maintains operational simplicity while ensuring optimal imagery quality by adapting settings to each specific object without requiring user expertise in manual adjustment

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically changes X-Ray parameters (strength, energy, power) based on measured object volume. By automatically adjusting these parameters according to object characteristics, the system maintains ease of operation while achieving precise control over imagery quality

Inventive Principle:
Principle #35Parameter changes

3Speed

If X-Ray beams carry excessive energy, then the X-Ray penetrates the object easily, but the patient appears too transparent reducing image quality

Engineering Contradiction:
ImproveX-Ray penetration speedVSAvoidImage quality
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The system precisely controls X-Ray energy parameters based on measured object volume. By matching X-Ray strength to object size, the system achieves optimal penetration without excessive energy that would cause over-exposure and loss of image detail, maintaining both penetration effectiveness and image quality

Inventive Principle:
Principle #35Parameter changes

4Object-affected harmful factors

If X-Ray beams carry insufficient energy, then the X-Ray machine operates safely, but the patient appears too obscured reducing image quality

Engineering Contradiction:
ImproveX-Ray safetyVSAvoidImage quality
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The system dynamically adjusts X-Ray energy parameters according to object volume measurements. This ensures sufficient energy is delivered to achieve diagnostic image quality while avoiding excessive energy that would create safety concerns, balancing image quality and safety through precise parameter control

Inventive Principle:
Principle #35Parameter changes

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 approach enables rapid and accurate adjustment of X-Ray strength, ensuring optimal imagery quality without user input, by estimating the object's volume and selecting appropriate X-Ray parameters, thereby improving image clarity and reducing the time needed for setting adjustments.

Implementation Method 1

the volume may be estimated by using lasers or other collimated light beams to determine one or more distances to the to object to be X-Rayed

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS7492864B2Methods and apparatus for range based X-Ray attenuation
Publication Date: 2009.02.17 SIEMENS HEALTHCARE GMBH
  • US7492864B2 patent drawing
  • US7492864B2 patent drawing
  • US7492864B2 patent drawing

AI summary

Methods and apparatus are disclosed for automatically setting an X-Ray strength based at least in part on the volume of an object. Lasers are used to measure distances to the object. Using the measured distances, a volume of the object to be X-Rayed is estimated. Using the estimated volume, an appropriate X-Ray strength is determined and an X-Ray machine is adjusted to provide X-Rays of that strength.