Ergonomic Dental Retractor With Suction for Single-Handed Use

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Solution Overview

Problem

Dental procedures face challenges due to the impractical use of multiple instruments in a restricted oral cavity, leading to reduced efficiency, increased patient discomfort, and musculoskeletal disorders among dental professionals, such as neck, back, and shoulder pain, and carpal tunnel syndrome.

Innovation Solution

A combination dental retractor integrated with a suction tool, featuring an ergonomic design with an S-shaped neck region and adjustable handle grip, allowing for improved ergonomics and reduced strain on the dentist, while facilitating better posture and reducing the need for multiple instruments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple instruments are used in the oral cavity, then retraction and suction functions are achieved, but the complexity of the device increases and the ease of operation deteriorates

Engineering Contradiction:

Improvefunctional versatilityVSAvoidinstrument complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple dental instruments (retractor and suction tool) into a single integrated device. The retractor blade and suction tip are merged into one unified instrument that can be held and operated with a single hand, eliminating the need to manage multiple separate instruments simultaneously in the restricted oral cavity environment.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated instrument performs multiple functions through its different components - the retractor blade provides tissue retraction while the suction tip provides fluid removal. This multi-functional design allows a single instrument to replace what previously required two or more separate instruments, reducing operational complexity while maintaining functional versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple instruments are used in the oral cavity, then retraction and suction functions are achieved, but the productivity decreases due to increased procedure time

Engineering Contradiction:

Improvefunctional versatilityVSAvoidprocedure efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

By merging retraction and suction capabilities into one instrument, the dentist can perform both functions simultaneously without switching between tools or coordinating multiple instruments. This eliminates time losses associated with instrument changes and improves overall procedure efficiency and productivity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated design allows continuous simultaneous performance of retraction and suction functions throughout the procedure. The dentist maintains uninterrupted control over both tissue retraction and fluid removal without breaks or transitions, maximizing the continuity of useful action and improving productivity.

Inventive Principle:

Principle #20Continuity of useful action

3Adaptability or versatility

If multiple instruments are used in the oral cavity, then retraction and suction functions are achieved, but the ease of operation deteriorates due to limited range of motion

Engineering Contradiction:

Improvefunctional versatilityVSAvoidinstrument maneuverability

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Combining multiple instruments into one reduces the number of separate tools that need to be maneuvered independently in the confined oral space. The single integrated instrument has a unified handle and shaft structure that is easier to position and manipulate compared to coordinating multiple separate instruments, thereby improving ease of operation despite maintaining functional versatility.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of operation

If conventional instruments are used, then basic retraction function is achieved, but the harmful factors increase due to musculoskeletal strain on dentists

Engineering Contradiction:

Improvebasic functionalityVSAvoidmusculoskeletal strain

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The integrated design allows the dentist to perform retraction and suction with one hand, eliminating the need to use both hands for separate instruments. This reduces awkward hand positions, minimizes strain on the dentist's musculoskeletal system, and maintains basic retraction functionality while decreasing harmful ergonomic factors.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260041413A1Combination Ergonomic Suction Tool

Publication Date: 2026.02.12 GORDON MANUEL BARRY

AI summary

A combination ergonomic tool having a suction mechanism and includes an operational unit, a neck region and a handle region. The suction mechanism may be added for eliminating fluids. In particular, the handle region and neck region together form a single, continuous, hollow fluid passageway to facilitate the delivery of suction at the distal tip of the combination dental tool. The operational unit can further include a tongue retractor, a flap retractor or a combination thereof. The neck region may further contain a lateral bend, a rotation of the working end or both. The proximal end of the handle region, opposite the operational unit, may further include any useful apparatus, such as a periosteal elevator or periosteal retractor.