Cannulated Drill Guide Pin for Dental Implant Placement
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Solution Overview
Problem
Current dental implant placement and installation techniques face challenges such as inaccurate placement and orientation of drill bits, difficulty in relocating pilot holes, risk of guide splint fragments contaminating the surgical site, and lack of directional guidance for larger drill bits, leading to potential bone damage.
Innovation Solution
A cannulated dental implant system with a guide splint and guide pin providing directional guidance, allowing for accurate positioning and orientation of drill bits, and a method involving a series of cannulated drill bits and guide sleeves to form holes of varying sizes, ensuring precise placement and orientation of dental implants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional non-cannulated drilling techniques are used, then the procedure is simpler, but accurate placement and orientation of drill bits becomes difficult
Solution Approach 1:
A guide pin is introduced as an intermediary element that is first inserted into the bone to establish the exact desired location and orientation. Subsequent cannulated drill bits then follow this guide pin's path, ensuring accurate placement without requiring complex external guiding devices throughout the entire drilling process.
Solution Approach 2:
The guide pin is inserted beforehand to pre-establish the correct trajectory and position for the implant hole. This preliminary action allows the subsequent drilling to simply follow the predetermined path, significantly improving placement accuracy while keeping the overall system relatively simple.
2Adaptability or versatility
If conventional drilling techniques are used, then the procedure is straightforward, but relocating pilot holes becomes very difficult
Solution Approach 1:
The guide pin is extracted (removed) from the bone after the initial pilot hole is created. This extraction allows the practitioner to reposition and insert a new guide pin at a different location if the original placement is incorrect, making hole relocation feasible without causing additional significant damage to the bone or surrounding tissue.
3Measurement precision
If conventional drilling techniques are used, then the equipment is simpler, but directional guidance for larger drill bits is lost
Solution Approach 1:
Cannulated drill bits are designed with a hollow cylindrical structure that nests over the guide pin. The guide pin remains in place throughout the drilling process, and each successive larger drill bit is inserted through the guide pin's hollow center, ensuring that all drill bits maintain the correct orientation and follow the same trajectory without requiring additional external guidance mechanisms.
4Object-affected harmful factors
If conventional techniques are used, then the process is simpler, but bone and tissue damage increases
Solution Approach 1:
The drilling process is segmented into distinct stages: first inserting a thin guide pin to create a minimal trauma pilot path, then sequentially inserting cannulated drill bits of increasing size through the guide pin's hollow center. This segmentation allows each stage to use the smallest necessary tool diameter, minimizing bone and tissue damage while maintaining procedural efficiency through a systematic approach.
Data Source
AI summary
According to one embodiment, a dental implant system for implanting a dental implant in bone tissue using an implant drill driver includes a shank and a drill guide. The shank is removably coupleable to the implant drill driver and includes an internal passage that has a non-round cross-sectional shape. When coupled to the implant drill driver, the shank is rotatable via operation of the implant drill driver. The drill guide pin includes a bone penetrating end portion and a shank engagement portion. The shank engagement portion includes a notched section having a non-round cross-sectional shape corresponding with the non-round cross-sectional shape of the internal passage of the shank. The notched section of the shank engagement portion is insertable within the internal passage of the shank. Moreover, engagement between the notched section and the internal passage facilitates co-rotation of the shank and drill guide pin.