CBCT Apparatus Segmented Frame and Articulated Locking

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Solution Overview

Problem

Traditional CT apparatus are large and cumbersome, limiting their versatility and mobility, especially in dental and medical cone beam computed tomography (CBCT) imaging, where they often require floor mounting and are not adaptable for imaging various patient positions.

Innovation Solution

A CT apparatus with an elongated frame and adjustable patient support, featuring a circular gantry and lateral movement of X-ray components, along with a driving mechanism for the support construction and patient positioning, allowing for versatile imaging of different anatomical parts in various positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional CT apparatus are used, then imaging capability is achieved, but the apparatus becomes large and cumbersome, limiting mobility and versatility

Engineering Contradiction:
Improveimaging versatilityVSAvoidapparatus weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of stationary object

Solution Approach 1:

The CT apparatus is divided into separate functional modules: a mobile support construction with patient support, and a separate imaging means (gantry or C-arm) that can be positioned independently. This segmentation allows each component to be optimized separately, reducing overall size and weight while maintaining imaging capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The apparatus employs movable and adjustable components including laterally movable imaging means along the elongated frame, adjustable patient support positioning, and reconfigurable geometric arrangements. This dynamic capability enables versatile imaging positions without requiring a large fixed structure.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If floor-mounted CT apparatus are used, then stable imaging is achieved, but mobility and adaptability for various patient positions are lost

Engineering Contradiction:
Improvepatient positioning flexibilityVSAvoidapparatus stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The apparatus uses adjustable and reconfigurable components including movable imaging means, adjustable patient support, and reconfigurable geometric arrangements that can be dynamically positioned for different imaging scenarios while maintaining stability during operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mobile support construction with elongated frame is designed to accommodate multiple imaging configurations and patient positions through adjustable components, making the apparatus universally applicable for various imaging needs without requiring floor mounting.

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

3Weight of stationary object

If CBCT apparatus with slower rotational speeds are used, then apparatus weight is reduced, but imaging time increases

Engineering Contradiction:
Improveapparatus weightVSAvoidimaging time
Core Design Contradiction:
Weight of stationary objectVSLoss of time

Solution Approach 1:

The apparatus employs movable imaging means that can be repositioned laterally along the elongated frame and adjusted to optimal positions for each imaging scenario, enabling efficient data acquisition that reduces imaging time despite slower rotational speeds of the X-ray source.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The apparatus utilizes lateral movement of imaging means along the elongated frame in addition to rotational movement, creating a multi-dimensional imaging approach that compensates for slower rotation speeds by gathering data from multiple positions and angles more efficiently.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 more flexible and efficient imaging of various anatomical parts by reducing the size and weight of the apparatus, allowing for mobile and adaptable imaging setups that can accommodate different patient positions and orientations.

Implementation Method 1

an X-ray source (14) and an image detector (15), which together form imaging means (14, 15)

Methodology Applied
Scientific EffectX-ray emission: X-Ray

Data Source

PatentEP3975856B1CT imaging apparatus
Publication Date: 2024.11.27 PLANMECA
  • EP3975856B1 patent drawingFigure 1
  • EP3975856B1 patent drawingFigure 2a~2b
  • EP3975856B1 patent drawingFigure 3a~3b

AI summary

The invention relates, in particular, to structures of a dental and medical cone beam computed tomography (CBCT) apparatus. The basic construction of the apparatus includes two elongated frame parts (11, 21) out of which the first frame part (11) is arranged to support X-ray imaging means (14, 15) and wherein the frame parts (11, 21) are mechanically connected to each other via an articulated construction (22) so as to allow for tilting of the first frame part (11) supporting the X-ray imaging means (14, 15) with respect to the second frame part (21). At the proximity of the second end of the first and second elongated frame parts (11, 21) is arranged a locking mechanism (24) configured to enable connecting together and disconnecting the first and second elongated frame parts (11, 21).