Cylindrical Bone Implant Anchorage Area Design
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Solution Overview
Problem
Existing bone implants are limited in their versatility and stability, often requiring multiple devices that weaken bone tissue and are complicated to implement, especially in non-fractured bones or sensitive areas.
Innovation Solution
A cylindrical bone implant with an anchorage area covering at least half of its outer surface, featuring holes with varying orientations for bone cement distribution and surface structures for improved fixation, allowing for stable positioning within different bones without additional fixation means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional bone implants with screw heads and threads are used, then fixation stability is achieved, but the implant cannot be universally applied to different bone types and locations
Solution Approach 1:
The implant is designed as a cylindrical body with a standardized geometry that can be inserted into different bone types (vertebrae, ribs, humerus, femur) without requiring different implant designs. The universal cylindrical shape with anchorage areas and fluid introduction capabilities allows single-implant application across multiple bone locations, eliminating the need for bone-specific implant variations.
2Reliability
If multiple implants are used to stabilize bone, then fixation stability is improved, but bone tissue is weakened due to multiple introduction channels
Solution Approach 1:
The implant combines multiple functions into a single device: it provides mechanical stabilization through its cylindrical structure, introduces fluid through integrated bore and openings, and creates anchorage through surface features. This single-implant solution replaces what would traditionally require multiple separate implants, thereby maintaining fixation stability while minimizing bone tissue damage from multiple introduction channels.
3Strength
If implant width is increased to improve stability, then fixation strength is improved, but the implant becomes difficult to introduce into bone without destroying further bone tissue
Solution Approach 1:
The implant features localized anchorage areas with surface structures (grooves, recesses, protrusions) concentrated at specific regions rather than uniformly across the entire surface. This allows the implant to achieve strong fixation through localized bone-implant interaction while maintaining a slender overall diameter that facilitates easy introduction into bone without causing excessive tissue damage.
4Reliability
If anchorage area covers entire outer surface, then fixation is maximized, but manufacturing complexity increases
Solution Approach 1:
The outer surface is divided into distinct functional zones: anchorage areas with stabilizing structures (grooves, recesses, protrusions) and non-anchorage areas with smoother surfaces. This segmentation allows different surface regions to serve different purposes - some areas maximize bone contact and fixation while others facilitate fluid introduction or reduce manufacturing complexity, achieving effective fixation without requiring complex structures across the entire surface.
Data Source
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AI summary
A Bone implant (1) for stabilizing fractured or non-fractured bones comprises an implant body (2), preferably a cylindrical body, extending along a longitudinal axis (3) from a front side (4) to an end side (5). The implant has an implant width (6) extending perpendicularly to the longitudinal axis (3), wherein a length of the implant body (2) along the longitudinal axis (3) is at least 5 times the implant width (6). The implant body (2) has an outer surface, being at least divided into a first surface (7) and a second surface (8. The first surface (7) consists of an anchorage area (9) which extends at least partially over the outer surface, preferably maximum over half of the outer surface.