Dental Implant Insertion Tool with Splint Guide
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Solution Overview
Problem
Existing dental implant placement systems face challenges in accurately positioning and inserting miniature implants due to tight space constraints and the complexity of handling large fastening bodies, leading to difficulties in controlling placement depth and preventing tilting or rotation errors.
Innovation Solution
The system integrates a placement tool with a head part matching the splint's interior diameter, featuring stop surfaces for precise depth control, eliminating the need for separate fastening bodies and allowing for a single insertion tool to handle implants of different diameters, including miniatures, by using a placement sleeve with integral stop surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a flange with large diameter is used on the fastening body to limit implant placement depth, then the placement depth can be controlled, but the handling becomes difficult due to tight space constraints in the oral cavity
Solution Approach 1:
The invention extracts the depth control function from the fastening body's flange and relocates it to the insertion tool's head part. The head part has an exterior diameter matched to the splint's interior diameter, providing depth control without requiring a large-diameter flange on the fastening body, thus solving the space constraint problem while maintaining placement precision
Solution Approach 2:
Instead of using a large flange on the fastening body to control depth, the invention inverts the approach by using the insertion tool's head part (with diameter matched to splint interior) to provide the stopping function. This reverses which component performs the depth control function, eliminating the handling difficulty caused by large flanges
2Manufacturing precision
If a long axial length fastening body is used to provide placement depth limitation, then the implant placement can be controlled, but the handling and positioning becomes significantly more difficult in tight spaces
Solution Approach 1:
The invention extracts the depth specification function from the fastening body and transfers it to the insertion tool's head part. The head part's exterior diameter is precisely matched to the splint's interior diameter, creating a natural stop that defines placement depth without requiring a long axial length fastening body, thus improving handling reliability
Solution Approach 2:
The invention inverts the conventional approach by making the insertion tool (rather than the fastening body) the primary component for depth specification. The head part of the insertion tool provides the stopping function through its diameter match with the splint, reversing which component is responsible for depth control and thereby improving operability
3Reliability
If separate fastening bodies are used for implants with different diameters, then each implant can be securely fastened, but the number of components and production complexity increases substantially
Solution Approach 1:
The invention applies universality by designing the insertion tool's head part with an exterior diameter that is matched to the splint's interior diameter, allowing the same insertion tool to be used for implants of different diameters. This eliminates the need for multiple specialized fastening bodies, reducing component complexity while maintaining secure fastening through the universal interface
Solution Approach 2:
The invention merges the functions of multiple specialized fastening bodies into a single universal insertion tool design. The head part of the insertion tool serves as the common interface for all implant placements, combining what would otherwise require separate components for different implant diameters, thereby reducing the total number of parts
4Reliability
If a large distance from the insertion tool to the implant is maintained due to the fastening body, then the implant can be secured, but tilting moments and rotations occur leading to incorrect positioning
Solution Approach 1:
The invention extracts the security function from a distant fastening body and relocates it to the insertion tool's head part that is closely integrated with the implant. The head part's exterior diameter matched to the splint's interior diameter provides both security and precision by minimizing the distance between the insertion point and the implant, eliminating tilting moments
Solution Approach 2:
The invention inverts the conventional arrangement by integrating the insertion tool's head part directly with the implant rather than using a separate fastening body at a distance. This reversal of the component arrangement minimizes the lever arm, preventing tilting moments and rotations while maintaining secure implantation
Data Source
AI summary
A system for insertion of implants, in particular dental implants, comprises a splint, which is provided with a bore and which is designed for positioning the implant onto an area intended for the insertion, in particular a bone, and can be placed on the latter. The system also includes an insertion or screwing tool for the implant, and the splint has a guide surface. The system is to be further designed such that the precise insertion of the implant can be predefined with a high degree of reliability. For this purpose, the insertion or screwing tool has a head part to which the implant is connected and which has an outer surface for bringing into engagement with the guide surface, the insertion or screwing tool also comprises a first stop or abutment, and that the splint in the area of the bore comprises or at least indirectly acquires a further stop or abutment, on which the first stop or abutment of the screwing tool comes to rest in order to define the depth of insertion of the implant when it is being screwed in.