Implant Surface Structure with Spiral Wave Pattern

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Solution Overview

Problem

Current implant surface structures fail to achieve optimal stability and bone growth in a short time, and there is a need for economical techniques that can accommodate varying patient conditions and prevent bacterial growth, while existing methods are limited in flexibility and effectiveness.

Innovation Solution

A method involving a surface structure with a long wave pattern created by cutting work on cylindrical, cone-shaped, or threaded surfaces, combined with oxide layers, where the surface pattern features troughs and peaks with controlled depths between 25 to 250 μm, and optionally enhanced with laser-produced layers, allowing for customizable implant designs that promote bone integration and prevent bacterial growth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surface structures are used on implants, then manufacturing is simple, but implant stability and bone growth are not achieved in a short time

Engineering Contradiction:
Improveimplant stabilityVSAvoidtime for bone growth
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The surface is segmented into multiple functional zones with different structures: a first surface portion with a first structure and a second surface portion with a second structure. This segmentation allows different regions to serve different functions - one optimized for rapid bone growth while another provides structural stability, thereby achieving both rapid stabilization and bone integration without extending treatment time

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different local surface qualities are created by applying distinct surface treatments to different portions of the implant. The first surface portion receives a treatment that promotes rapid osteogenesis, while the second surface portion has different properties for structural support. This local differentiation enables the implant to achieve stability and bone growth simultaneously in different regions

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If standardized implant surfaces are used, then manufacturing is economical, but flexibility to accommodate varying patient conditions is limited

Engineering Contradiction:
Improveflexibility for patient conditionsVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The implant surface is divided into multiple treatable zones that can be independently processed. This segmentation allows the manufacturer to apply different surface treatments to different portions based on specific patient requirements, enabling customization without requiring completely different implant designs. The modular surface treatment approach maintains manufacturing efficiency while achieving patient-specific adaptability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The implant design incorporates dynamic adaptability through its multi-portion surface structure. Rather than a fixed standardized surface, the implant can have its surface properties adjusted dynamically during manufacturing to match varying patient conditions. The control system enables flexible allocation of different surface treatments to different portions based on real-time manufacturing parameters and patient specifications

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If conventional surface treatments are applied uniformly, then manufacturing is simple, but bacterial growth prevention is insufficient

Engineering Contradiction:
Improvebacterial growthVSAvoidsurface structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The surface is segmented into functional zones where at least one portion is specifically treated to prevent bacterial adhesion. This segmented approach allows concentrated anti-bacterial treatment on critical surfaces while leaving other portions with simpler structures, thereby achieving effective bacterial prevention without requiring complex treatments across the entire implant surface

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Anti-bacterial properties are applied locally to specific surface portions rather than uniformly across the entire implant. This local quality approach creates targeted bacterial prevention zones where needed while maintaining manufacturing simplicity in other areas, reducing overall device complexity while achieving effective harm prevention

Inventive Principle:
Principle #3Local quality

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

The method achieves rapid implant stability within 1 to 5 days, accommodates diverse patient needs, and prevents bacterial growth, providing a technically reliable and economically advantageous solution for producing implants with tailored surface structures.

Implementation Method 1

a surface pattern which has been produced by cutting work, for example turning, milling or shot-peening

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

layers which are made in another way, for example with the aid of laser bombardment

Methodology Applied
Scientific EffectLaser ablation: Laser Ablation

Implementation Method 3

porous oxide layers on, for example, titanium material can be used to stimulate bone growth

Methodology Applied
Scientific EffectOxidation: Oxidation

Data Source

PatentUS8764443B2Method for producing a surface structure on an implant, and such an implant
Publication Date: 2014.07.01 NOBEL BIOCARE SERVICES AG
  • US8764443B2 patent drawing
  • US8764443B2 patent drawing
  • US8764443B2 patent drawing

AI summary

A surface structure is produced on an outer surface of an implant or a fixture and forms a base structure in a range of implants related to different types and qualities of jaw bone. During production of the surface, parts of a turning tool are placed against the implant or against a blank which is intended to form the implant. The parts and/or the implant are assigned controls which give rise to mutual displacements between the parts and the implant so that the parts follow a substantially spiral trajectory along the outer surface. By means of said controls, a long wave pattern is formed with successive peaks and with through lying between these. In this connection, a through can be arranged adjacent to the outer parts of an existing thread. The controls are chosen so as to produce through depths in the range of 25 to 250 μm, preferably 50 to 200 μm. The invention also relates to an implant which has the same character as the implant produced by the method.