Diagnostic Camera Spacer Attachment for Stable Imaging

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Solution Overview

Problem

Diagnostic cameras used for remote viewing of the oral cavity face challenges in maintaining a stable and sharp image due to difficult working conditions, and existing spacer attachments can detach during use, leading to image blurriness and safety concerns.

Innovation Solution

A diagnostic camera with a dimensionally stable spacer having a free end section that allows for correct positioning and stabilization without direct line of sight, featuring a 90-degree angled design and a roughened inner surface to reduce reflections, and a plastic injection-molded attachment for secure and cost-effective production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a spacer is provided in the diagnostic camera to stabilize the image, then image sharpness is improved, but the spacer can become detached and fall into the patient's oral cavity

Engineering Contradiction:
Improveimage sharpnessVSAvoidattachment reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The spacer is nested within the head area structure, with the front end section inserted into a receptacle of the head area. This nested configuration ensures the spacer remains securely housed while maintaining its stabilizing function, preventing detachment into the oral cavity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The spacer is pre-positioned and fixed in the correct location within the head area before use. The receptacle and front end section are designed to maintain precise alignment, ensuring the spacer is already in its proper stabilizing position when the diagnostic camera is activated, eliminating the need for adjustment during use.

Inventive Principle:
Principle #10Preliminary action

2Ease of repair

If the spacer is made detachable for cleaning and sterilization, then ease of maintenance is improved, but the risk of detachment during use increases

Engineering Contradiction:
Improvecleaning accessibilityVSAvoidattachment reliability
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The detachable front end section is nested within the head area receptacle, allowing it to be easily removed for cleaning and sterilization. The nested design maintains secure engagement during use while enabling straightforward separation for maintenance purposes.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the free end section is designed to provide tactile feedback for positioning, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning easeVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The free end section of the spacer is designed with specific tactile properties and geometry to provide positioning feedback. This localized feature provides the necessary operational guidance without requiring complex mechanisms throughout the entire device, maintaining simplicity while improving ease of use.

Inventive Principle:
Principle #3Local quality

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

The solution enables a stable, low-blur image capture with improved image quality and safety by ensuring a secure attachment and minimizing reflections, while being suitable for reusability and compliance with medical standards.

Implementation Method 1

The roughness causes a diffuse scattering of incident light rays and thus enables a reduction in reflection

Methodology Applied
Scientific EffectDiffuse scattering: Scattering

Data Source

PatentEP2139376B1Diagnostic camera and attachment for the implementation thereof
Publication Date: 2012.01.25 DURR DENTAL GMBH & CO KG
  • EP2139376B1 patent drawingFigure 1
  • EP2139376B1 patent drawingFigure 2
  • EP2139376B1 patent drawingFigure 3

AI summary

An attachment (40, 40a, 40b) for a diagnostic (10) comprises a coupling section (42) configured for the detachable connection to a head region (14) of a diagnostic camera (10), and a dimensionally stable spacer (44) that is connected to said section and has a free end section (46).