Dental Bone Perforation Guide for Direct Mandibular Anesthesia
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Solution Overview
Problem
Existing intraosseous anesthesia delivery systems rely on fragile needles for perforation, leading to discomfort, multiple attempts, swelling, and potential needle deformation during dental procedures.
Innovation Solution
A dental perforating device with a metallic rod and drill tip, designed for perforating the gingiva and cortical plate, allowing direct injection of anesthesia into the cortical bone for immediate pulpal anesthesia, reducing invasiveness and discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a needle-based perforation system is used, then the device is simple and easy to manufacture, but the needle becomes fragile and deforms during bone penetration
Solution Approach 1:
The perforation device is divided into separate functional components: a handle, a perforating element (blade or needle), and a guide. This segmentation allows the handle and guide to be made of robust materials while keeping the perforating element simple and replaceable, resolving the contradiction between simplicity and strength.
Solution Approach 2:
The perforating element is designed as a disposable component that can be discarded after use. This allows the main device structure to be made of strong, durable materials while the fragile perforating element is replaced rather than repaired, eliminating the strength issue without compromising overall device robustness.
2Reliability
If multiple perforation attempts are made, then the anesthesia delivery is achieved, but patient discomfort and swelling increase
Solution Approach 1:
The device includes a guide component that is positioned and secured in the bone before perforation begins. This preliminary positioning ensures that the perforating element follows the correct path and reaches the target area in a single attempt, eliminating the need for multiple attempts and reducing patient discomfort and swelling.
Solution Approach 2:
The guide acts as an intermediary between the perforating element and the bone target. It provides a stable reference and directional control, allowing the perforating element to penetrate the bone accurately without requiring multiple attempts, thereby reducing harmful effects on the patient.
3Strength
If a robust perforation device is used, then needle deformation is prevented, but the invasiveness and complexity of the procedure increases
Solution Approach 1:
The device is segmented into a handle, a guide, and a perforating element. This segmentation allows each component to be optimized independently: the handle and guide are made robust for stability, while the perforating element remains simple for ease of use. The modular design reduces overall procedure complexity by making the device easier to assemble and operate.
Solution Approach 2:
The guide serves as an intermediary component that simplifies the interaction between the robust handle and the fragile bone. It provides directional control and stability, allowing the robust device to be used without increasing procedure complexity, as the guide handles the complexity of bone penetration internally.
Data Source
AI summary
A device and method for perforating human gingeva and cortical plate tissue to allow for the administration of dental anesthesia directly to the nerve(s) of a human mandibular molar or molars.