Hydrating Cortical Drill With Integrated Jets
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Solution Overview
Problem
Current cortical drills for dental implants are inefficient due to the lack of direct water pressure application against the cortical bone matrix, leading to longer procedures and reduced effectiveness, as water is alternately introduced and removed during drilling, and not effectively targeted at the cancellous bone site.
Innovation Solution
A cortical drill design featuring a stem portion with a locking notch and water inlet, and a drill portion with a conical body and slot portion containing jets that direct pressurized water along the drill's axis, ensuring water pressure is applied directly to the cancellous bone, eliminating the need for frequent water introduction and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water is introduced alternatively with the cortical bone screw during drilling, then the cortical bone cavity can be flushed, but the procedure becomes less effective and takes longer
Solution Approach 1:
The patent combines the water delivery system with the cortical drill by integrating a water inlet and jets directly into the drill structure. This merging allows water to be delivered continuously during drilling without separate flushing steps, eliminating the time loss from alternating between drilling and flushing operations while maintaining effective cavity enlargement.
Solution Approach 2:
The patent implements continuous water delivery through jets that are active throughout the drilling process. The water inlet receives fluid under pressure continuously, and the jets expel water continuously against the cortical bone matrix, ensuring uninterrupted hydration and cavity enlargement rather than periodic flushing interruptions.
2Reliability
If water is introduced while the cortical drill is in use, then the cavity can be flushed, but the water is not brought to bear directly against the cancellous bone at the drill site
Solution Approach 1:
The patent applies water locally and directly at the drill site through jets positioned to expel water precisely against the cortical bone matrix at the cancellous bone interface. This localized application ensures the water is brought to bear directly where needed for cavity enlargement rather than general flushing of the site.
Solution Approach 2:
The jets serve as an intermediary mechanism that delivers water under pressure directly to the cortical bone matrix. The water inlet receives fluid, and the jets transform this into a directed stream that mediates the interaction between the drill and the bone, ensuring direct water application to the cancellous bone site.
3Productivity
If a cortical drill lacks a cutting edge and relies largely on pressure, then it can create space in cortical bone, but water pressure cannot be applied directly against the cortical bone matrix
Solution Approach 1:
The patent merges the pressure-based drilling mechanism with a water pressure delivery system by integrating water inlet and jets into the drill structure. This combination allows the drill to maintain its pressure-based drilling action while simultaneously applying water pressure directly against the cortical bone matrix through the jets, resolving the limitation of indirect water application.
Solution Approach 2:
The patent employs hydraulics by using fluid under pressure delivered through the water inlet and expelled through jets. This hydraulic system provides direct water pressure application against the cortical bone matrix, enhancing the mechanical pressure-based drilling action and enabling effective cavity enlargement through combined mechanical and hydraulic forces.
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 design enhances drilling efficiency by maintaining consistent water pressure against the bone, reducing procedure time and improving the effectiveness of the implant installation process by ensuring direct and continuous water application to the cancellous bone.
Implementation Method 1
fluid under pressure into the water inlet travels through the stem portion and the drill portion, and exits the jets in the slot portion
Data Source
AI summary
A cortical drill for hydrating and drilling cancellous bone when preparing a dental implant includes a stem portion and a drill portion, the stem portion with a locking notch and a water inlet configured for receiving fluid under pressure into the cortical drill. The drill portion has an elongated substantially conical body having an outer wall. The drill portion has a slot portion, and the slot portion includes a cut-out forming an inlet along a peripheral surface of the conical body. A plurality of jets are formed in the slot portion, with the jets in communication with the water inlet, and the jets arranged along the slot portion, such that fluid travelling under pressure into the water inlet, travels through the stem portion and the drill portion, and exits the jets in the slot portion.