Ultrasound Dental Imaging via 2D Transducer Array

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Solution Overview

Problem

Conventional dental impression techniques using physical materials like polyvinyl siloxane or alginate suffer from issues such as bubble interference, distortion during removal, and difficulty in duplicating images, which limits the accuracy and reliability of three-dimensional dental imaging.

Innovation Solution

A system utilizing a two-dimensional array ultrasound probe with a full-matrix capture probe interface device that emits and receives ultrasound waves to capture reflection data, generating three-dimensional images of dental and other anatomical structures, including both surface and subsurface features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If physical impressioning materials are used to capture dental anatomy, then three-dimensional images can be obtained, but bubbles interfere with capturing the anatomy and distortion occurs during removal

Engineering Contradiction:
Improveaccuracy of dental anatomy captureVSAvoiddistortion during removal
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent replaces the mechanical physical impressioning material system with an ultrasound imaging system. Instead of using polyvinyl siloxane or alginate materials that physically contact and then distort during removal, the invention uses ultrasound waves to non-contactly capture three-dimensional images of dental anatomy, eliminating the mechanical distortion problem entirely

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

Solution Approach 2:

The patent introduces ultrasound waves as an intermediary between the imaging system and the dental anatomy. Rather than direct physical contact with impression materials, the ultrasound waves serve as a mediator that can penetrate and reflect off anatomical structures to create accurate three-dimensional images without causing distortion

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If physical impressions are used to capture dental anatomy, then images can be obtained, but it is difficult to duplicate images as the impression is typically distorted or destroyed

Engineering Contradiction:
Improvedental anatomy imaging capabilityVSAvoidduplication capability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent creates digital copies of dental anatomy through ultrasound imaging. Instead of physical impressions that can be distorted or destroyed, the system generates digital three-dimensional images that can be infinitely duplicated and reproduced without loss of quality or distortion, enabling multiple copies for different purposes such as treatment planning, fabrication, and record-keeping

Inventive Principle:
Principle #26Copying

3Ease of operation

If conventional ultrasound imaging is used, then imaging capability is provided, but accurate three-dimensional imaging of surface and subsurface anatomy is not achieved

Engineering Contradiction:
Improveimaging capabilityVSAvoidthree-dimensional imaging accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent transitions from conventional two-dimensional ultrasound imaging to three-dimensional imaging by incorporating depth information through time-of-flight measurements. The system measures the time for ultrasound waves to travel to and from anatomical structures, adding the depth dimension to create accurate three-dimensional representations of both surface and subsurface anatomy

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

This approach provides accurate, non-distorting, and reproducible three-dimensional imaging of anatomical structures, overcoming the limitations of traditional methods by offering precise and reliable imaging of dental and other anatomical areas.

Implementation Method 1

a two-dimensional array of ultrasound transducers coupled to the elongate member, wherein the ultrasound transducers emit ultrasound when activated

Methodology Applied
Scientific EffectUltrasound emission: Piezoelectric Effect

Implementation Method 2

receive data corresponding to ultrasonic waves captured by a plurality of the ultrasound transducers

Methodology Applied
Scientific EffectUltrasonic reflection: Reflection

Data Source

PatentUS9877700B1Ultrasound imaging of anatomy
Publication Date: 2018.01.30 ASCH KLAASSEN SONICS LLC
  • US9877700B1 patent drawing
  • US9877700B1 patent drawing
  • US9877700B1 patent drawing

AI summary

Apparatuses, components, methods, and techniques for ultrasound imaging of patient anatomy are provided. An example system for ultrasound imaging of patient anatomy includes an ultrasound probe and a probe interface device. An example ultrasound probe includes a handle, an elongate member coupled to the handle and a two-dimensional array of ultrasound transducers coupled to the elongate member. The ultrasound transducers emit ultrasound when activated. An example probe interface device is communicatively coupled to the ultrasound probe. The example probe interface device is configured to activate at least one of the ultrasound transducers and to receive data corresponding to ultrasonic waves captured by a plurality of the ultrasound transducers.