Asymmetrical Dental Tool with Internal Cooling Channels

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Solution Overview

Problem

The process of forming a cavity in bone for dental implants generates significant heat and friction, which can lead to infection.

Innovation Solution

A dental tool with a unique geometry and internal cooling system, featuring a non-circular cross-section, compound slanted flanges, and serrations for cutting, coupled with an oscillating dental instrument that delivers cooling fluid to reduce heat at the interface during cavity formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dental tool is used to form a cavity in bone, then the implant can be anchored securely, but significant heat and friction are generated which may result in bone infection

Engineering Contradiction:

Improveimplant anchoring securityVSAvoidheat generation and friction

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces cooling fluid as an intermediary substance between the cutting tool and bone tissue. The cooling fluid flows through internal channels in the tool and is discharged at the cutting interface to reduce heat and friction during cavity formation, thereby preventing bone infection while maintaining secure implant anchoring

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs a hydraulic cooling system where cooling fluid is pumped through internal channels within the dental tool. This hydraulic system delivers the cooling fluid directly to the cutting interface, effectively managing heat generation during the cavity formation process

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Temperature

If internal cooling channels are added to the dental tool, then heat dissipation is improved, but device complexity increases

Engineering Contradiction:

Improveheat dissipation capabilityVSAvoidtool structure complexity

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The patent embeds cooling channels within the internal structure of the dental tool, nesting the cooling system inside the tool body. This allows the cooling function to be integrated into the tool without significantly increasing its external dimensions or overall complexity, while still providing effective heat dissipation at the cutting interface

Inventive Principle:

Principle #7Nested doll (Nesting)

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 tool effectively minimizes heat generation during cavity formation, reducing the risk of infection by efficiently dissipating heat through the use of cooling fluid, ensuring a safer implantation process.

Implementation Method 1

cooling fluid to reduce heat at the interface during cavity formation

Methodology Applied

Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 2

efficiently dissipating heat through the use of cooling fluid

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentEP3113714B1Asymmetrical dental tool with cooling channels

Publication Date: 2020.03.18 FORM & FUNCTION DENTAL SERVICES P C

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AI summary

A device for forming a cavity in a bone includes a body defining a longitudinal axis, a flange defined on the body having two surfaces that meet an edge that is oriented oblique to the longitudinal axis, serrations defined on an outer surface of the body for forming the cavity, an internal fluid passageway defined within the body for directing fluid to the serrations, and a connector extending from the flange that is configured to be connected to an oscillating dental instrument.