Hydraulic Drill for Sinus Membrane Protection
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Solution Overview
Problem
Existing methods for creating a perforation or cavity in a bone structure, such as the sinus membrane, often risk perforating the membrane during drilling, leading to potential damage and complications in dental implant procedures, especially when the sinus membrane integrity needs to be preserved.
Innovation Solution
A drill with a channel for supplying liquid under pressure is used to progressively detach the sinus membrane from the bone before piercing the sinus floor, forming a liquid pocket that protects the membrane and prevents perforation, utilizing a kit of drills adapted for varying bone heights to optimize liquid flow and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical drilling is used to create a perforation in the sinus floor, then the cavity is formed for implant placement, but the sinus membrane may be perforated causing damage and complications
Solution Approach 1:
The patent employs hydraulic pressure by introducing a liquid medium through the drill bit to progressively detach and lift the sinus membrane from the sinus floor before the drill penetrates through. This hydraulic action creates a controlled separation that prevents membrane perforation while enabling precise cavity formation for implant placement.
Solution Approach 2:
The liquid medium is introduced in advance during the drilling process to pre-lift and detach the sinus membrane before the drill bit reaches the membrane. This preliminary action of membrane detachment prevents subsequent perforation and ensures membrane integrity throughout the perforation procedure.
2Ease of manufacture
If the sinus membrane is detached and lifted before bone grafting, then bone grafting material can be introduced into the pocket, but the membrane may be damaged or perforated during the process
Solution Approach 1:
Hydraulic pressure is used to create and maintain a lifted position of the sinus membrane, forming a stable pocket between the membrane and sinus floor. This hydraulic support allows easy introduction of bone grafting material while keeping the membrane intact and properly positioned throughout the grafting process.
Solution Approach 2:
The liquid medium serves as an intermediary that maintains the detached state of the sinus membrane, acting as a protective barrier and spatial separator between the drill/bit and the membrane during bone grafting. This intermediary fluid ensures membrane integrity while facilitating material introduction.
3Length of stationary object
If drilling is performed close to the sinus membrane, then the cavity can be formed with sufficient height, but the risk of membrane perforation increases
Solution Approach 1:
Hydraulic pressure from the liquid medium creates a protective cushion and visual indicator (fluid level) that shows the proximity to the sinus membrane. This allows the drill to operate close to the membrane at greater depths while the hydraulic pressure prevents membrane contact and perforation, enabling sufficient cavity height formation.
Solution Approach 2:
The behavior and pressure of the liquid medium provide real-time feedback during drilling about the proximity to the sinus membrane. Changes in fluid pressure, flow resistance, or visual level indicate when the membrane is nearby, allowing the operator to adjust drilling parameters to maintain safe distances while achieving required cavity heights.
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 method ensures a 100% success rate in sinus lifts by avoiding membrane perforation, reducing procedure time, and allowing for a one-step implant placement, with the liquid also serving to cool and protect the bone and membrane.
Implementation Method 1
a channel adapted for supplying a liquid under pressure to the free end of the drill
Implementation Method 2
the liquid flows partially into and through the bone or bone structure toward the membrane while drilling the bone or bone structure
Implementation Method 3
The liquid under pressure also serves to cool the drill and the bone during the drilling operation
Data Source
AI summary
Tool and method for creating a perforation or cavity in a bone or bone structure in contact with a membrane, the tool including a drill having a free end and a channel adapted for supplying a liquid under pressure to the free end, the tool further including a source of the liquid under pressure such that the liquid flows partially into and through the bone or bone structure toward the membrane while drilling the bone or bone structure with the drill, which allows to perform a progressive detachment of the membrane when the drill is close to the membrane while still being inside the bone or bone structure, and before completely piercing the bone or bone structure.