Dental Implant Drill Nerve Injury Prevention via Electrical Resistance Feedback
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Solution Overview
Problem
Dental implant drills frequently cause injuries to the inferior alveolar nerve during surgeries due to mechanical trauma, leading to significant complications and prolonged recovery times, with existing methods failing to effectively prevent such injuries.
Innovation Solution
A system comprising a dental implant drill, a conductive clamp, an ohmmeter, and a processor that measures electrical resistance between the drill and the clamp, automatically turning off the drill when resistance drops below a certain threshold to prevent contact with the mandibular canal and minimize nerve injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the dental implant drill is made longer to improve drilling efficiency, then the drilling capability is enhanced, but the risk of encroaching on and injuring the inferior alveolar nerve increases
Solution Approach 1:
The patent applies feedback by continuously monitoring the electrical resistance between the drill and the mandible through the conductive clamp and ohmmeter. When the resistance drops below a predetermined threshold, indicating proximity to the inferior alveolar nerve, the system provides feedback to the surgeon via visual or auditory signals, allowing immediate adjustment to prevent nerve encroachment while maintaining drilling efficiency.
Solution Approach 2:
The patent introduces an intermediary electrical resistance monitoring system between the drill and the nerve. The conductive clamp and ohmmeter act as intermediaries that detect changes in electrical resistance caused by the drill's proximity to the nerve, providing an indirect but reliable detection mechanism that prevents direct mechanical injury without limiting drilling performance.
2Power
If the drill is used with high speed and torque to improve osteotomy performance, then the surgical efficiency is enhanced, but the mechanical trauma to the inferior alveolar nerve increases
Solution Approach 1:
The feedback mechanism continuously monitors electrical resistance during high-power drilling operations. When the drill approaches the inferior alveolar nerve, the resistance change triggers immediate feedback signals, allowing the surgeon to reduce power or adjust the drill position, thereby preventing mechanical trauma while maintaining the ability to perform osteotomy effectively when needed.
Solution Approach 2:
The patent applies beforehand cushioning by establishing an electrical resistance monitoring system that detects nerve proximity before direct contact occurs. The conductive clamp and ohmmeter provide early warning signals, allowing preventive action to be taken before mechanical trauma can occur, thus cushioning against the harmful effects of high-power drilling.
3Manufacturing precision
If the drill penetrates deeper into the mandible to improve implant placement accuracy, then the surgical precision is enhanced, but the risk of transecting or lacerating the inferior alveolar nerve increases
Solution Approach 1:
The electrical resistance monitoring system provides real-time feedback during deep penetration operations. As the drill approaches the inferior alveolar nerve, the resistance change generates visual or auditory signals that alert the surgeon to stop or adjust, preventing nerve transection while allowing precise implant placement when the nerve is not in the immediate path.
Solution Approach 2:
The patent replaces direct mechanical detection of nerve proximity with an electrical resistance-based detection system. The conductive clamp and ohmmeter substitute for mechanical sensing, providing a non-contact method to detect nerve proximity during deep drilling, thereby reducing the risk of transection while maintaining placement accuracy.
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
Effectively prevents inferior alveolar nerve injuries by ensuring the drill does not encroach upon the nerve, reducing the risk of mechanical trauma and facilitating quicker recovery.
Implementation Method 1
an ohmmeter, and a processor that measures electrical resistance between the drill and the clamp
Data Source
AI summary
A system for preventing injury to inferior alveolar nerve caused by dental implant drills during a dental implant surgery. The system includes a dental implant drill, a clamp, an ohmmeter, a first wire, a second wire, and a processor. The dental implant drill is configured to make a hole in a mandible of a patient. The clamp is configured to be attached to a lower lip of the patient. The ohmmeter is connected to the dental implant drill and the clamp. The processor is configured to receive the measured electrical resistance between the dental implant drill and the clamp from the ohmmeter and turn off the dental implant drill by sending commands associated with turning off the dental implant drill to the dental implant drill when the measured electrical resistance between the dental implant drill and the clamp is less than a predetermined threshold.