Dental Drill Guide with Integrated Limit Stop
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Solution Overview
Problem
Current drill guides for dental implant procedures face challenges in handling small reduction sleeves, which lead to handling difficulties and the risk of nerve damage due to deep penetration, and require time-consuming manual adjustments for precise drilling depths.
Innovation Solution
A drill guide with a grip and guide sleeves arranged on the same side, featuring a limit stop surface to prevent deep penetration and allow easy diameter reduction, enabling multiple drill sizes to be used without complex sleeve handling, and providing adjustable drilling depths through a simple turning mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If small reduction sleeves are used to reduce drilling diameter, then drilling precision is improved, but handling difficulty increases and aspiration risk increases
Solution Approach 1:
The patent combines the reduction sleeve and limit stop into a single integrated drill guide component. The limit stop protrudes from the top face of the grip and forms an axial continuation of the guide sleeve, merging the functions of diameter control and depth control in one element. This eliminates the need to handle separate small reduction sleeves while maintaining precise drilling control.
Solution Approach 2:
The drill guide serves multiple functions simultaneously: the guide sleeve provides diameter control for the drill, the limit stop provides depth control to prevent nerve damage, and the integrated structure eliminates the need for separate components. This multi-functionality resolves the contradiction by providing precise control without the handling difficulties of separate small components.
2Manufacturing precision
If manual adjustment of drilling depth is performed, then drilling depth precision is improved, but treatment time increases
Solution Approach 1:
The limit stop is pre-positioned on the drill guide at a specific height relative to the grip top face. This preliminary positioning of the depth limit eliminates the need for manual adjustment during the procedure. The drilling depth is predetermined by the limit stop position, allowing the surgeon to simply insert the drill guide and begin drilling without time-consuming adjustments.
3Adaptability or versatility
If multiple reduction sleeves are stacked to achieve step-wise diameter reduction, then drilling versatility is improved, but device complexity increases
Solution Approach 1:
The patent segments the drill guide into distinct functional elements: the guide sleeve for diameter control and the limit stop for depth control. This segmentation allows each element to be optimized independently while simplifying the overall structure compared to stacking multiple reduction sleeves. The limit stop is positioned at specific heights to correspond with different drill diameters, providing versatility without complexity.
Data Source
AI summary
The present invention relates to a drill guide (1) for use in the dental field. It comprises a grip (5) and at least two guide sleeves (10) arranged on the grip, the grip (5) having a top face (25) and an underside (30) and the underside (30) of the grip being intended to bear at least partially on a drill jig. The at least two guide sleeves (10) protrude from the underside (30) of the grip, and at least one limit stop (55), which is an axial continuation of one of the at least two guide sleeves (10), protrudes from the top face (25) of the grip.