Endosseous Implant Deformable Hooking Anchorage
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Solution Overview
Problem
Current endosseous implants face challenges with prolonged osseointegration periods, inadequate anchoring in bone tissue, and insufficient sealing, leading to potential withdrawal and bacteriological contamination, especially under stress and pressure in dental applications.
Innovation Solution
The endosseous implant features a mechanical connection system where the attachment and expansion parts are integral, allowing for relative displacement to widen the hooking part for secure anchoring in bone tissue, combined with non-return means to prevent rotation and unscrewing, and made from biocompatible materials like titanium or zirconia for enhanced osseointegration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional anchoring means (screw type or impaction type) are used on the outer surface of the implant body, then the implant can be easily introduced into bone tissue, but the anchoring strength is insufficient under stress and pressure, leading to potential withdrawal
Solution Approach 1:
The hooking part is designed to be deformable and can change shape from a non-hooking state during insertion to a hooking state after insertion. This dynamic transformation allows the implant to achieve strong anchoring under stress without requiring a complex pre-formed hook structure, resolving the contradiction between anchoring strength and structural complexity.
Solution Approach 2:
The hooking part's geometric parameters (shape, size, curvature) change after insertion into the bone housing. The deformable structure transforms to create hooking reliefs that engage with the bone walls, providing enhanced anchoring strength. This parameter change allows the same structure to serve both easy insertion and strong anchoring functions.
2Strength
If the implant remains in initial state during insertion, then the introduction into bone tissue is easy, but the anchoring against withdrawal is insufficient
Solution Approach 1:
The hooking part dynamically transforms from a compact initial state (easy insertion) to an expanded hooking state (strong anchoring). The deformable structure allows the implant to be easily introduced in its initial configuration, then automatically or manually transforms to create strong anchoring against withdrawal forces.
Solution Approach 2:
The hooking part is pre-configured in a compact initial state that facilitates easy insertion into the bone housing. After insertion, the structure transforms to create the hooking reliefs that provide anchoring. This preliminary configuration resolves the contradiction by optimizing the structure for insertion first, then for anchoring.
3Reliability
If conventional anchoring reliefs (threads or annular members) are used, then the implant can be fixed in position, but the sealing is insufficient, leading to bacteriological contamination and inflammation
Solution Approach 1:
The hooking part creates localized hooking reliefs that engage deeply with the bone housing walls, providing both mechanical anchoring and improved sealing at the critical interface. This localized enhancement of the anchoring structure simultaneously addresses both anchoring strength and sealing quality, preventing contamination without requiring separate sealing components.
4Strength
If a deformable hooking part is used to improve anchoring, then the anchoring strength increases, but the manufacturing complexity increases
Solution Approach 1:
The hooking part is manufactured with specific geometric parameters (thickness, curvature, material properties) that enable deformability. These parameter choices allow the structure to be formed using conventional manufacturing techniques while maintaining the ability to transform into a strong anchoring configuration, thus avoiding excessive manufacturing complexity.
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 design improves anchoring and sealing, reducing the risk of implant withdrawal and bacteriological contamination, allowing for immediate prosthetic attachment post-implantation and extended lifespan with accelerated osseointegration, while maintaining low manufacturing costs.
Implementation Method 1
the hooking part is elastically deformable and comprises at least two longitudinal slots able to allow a greater widening of said hooking part
Implementation Method 2
the connection means are cooperating screwing means and the fixing device comprises cooperating non-return means capable of preventing rotation between the attachment part and the expansion part in the opposite direction to that imparted by said screwing means
Implementation Method 3
the cooperating non-return means comprise, on the one hand, at the level of an external surface of the expansion part, a first external peripheral toothing and, on the other hand, at the level from an inner surface of the hooking part, a second outer peripheral toothing
Data Source
AI summary
The invention relates to an endosseous implant capable of being implanted into osseous tissue. The implant comprises an attachment device (3), comprising: a so-called portion (31) for hooking into the osseous tissue; a so-called expansion portion (32), said two portions being movable relative to one another; engaging mechanical connection means (33, 33a, 33b), arranged on the engaging portion (31) and on the expansion portion (32), such that the relative mobility of the two parts has at least one degree of freedom, and such that a relative movement of said two parts causes an enlargement of the engaging portion, said enlargement causing the engaging portion to engage with the osseous tissue. The endosseous implant can be used in particular in the dental field.