3D-Printed Semi-Finished Part for Medical Implants

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Solution Overview

Problem

Current 3D-printed medical devices lack enhanced mechanical properties and effective osseointegration, osseo conductivity, and manufacturing efficiency, particularly in medical implants and instruments.

Innovation Solution

A 3D-printed semi-finished part with predefined functional features, such as porous structures and multi-material configurations, is used to create medical devices that can be easily manufactured and adapted for improved mechanical properties and osseointegration, utilizing fused filament fabrication and CNC integration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional 3D printing processes are used to manufacture medical devices, then manufacturing simplicity is maintained, but mechanical properties and osseointegration capabilities are insufficient

Engineering Contradiction:
Improvemechanical propertiesVSAvoidmanufacturing process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-forming semi-finished parts with integrated functional features (porous structures, clamping features, mounting points) before final device manufacturing. This allows complex functional structures to be created in advance during the semi-finished part production, simplifying subsequent machining operations and improving mechanical properties without significantly increasing overall process complexity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes composite materials by combining different materials in the semi-finished parts, including high-performance polymers and porous materials with enhanced mechanical properties. This allows the final medical device to achieve superior strength and osseointegration capabilities while maintaining manufacturing efficiency through the semi-finished part approach

Inventive Principle:
Principle #40Composite materials

2Productivity

If semi-finished parts are used for manufacturing multiple medical devices, then productivity is improved, but manufacturing precision for specific device requirements may be compromised

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoiddevice-specific precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by incorporating device-specific functional features at predefined locations on the semi-finished parts. Each semi-finished part can be tailored with specific porous structures, clamping features, or mounting points at precise locations to meet the requirements of different medical devices, maintaining manufacturing precision while enabling efficient production of multiple device variants

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent utilizes segmentation by dividing the manufacturing process into semi-finished part production and final device fabrication stages. This allows standardization of common components across multiple devices while enabling customization of specific features for each device type, thereby improving productivity without sacrificing device-specific precision

Inventive Principle:
Principle #1Segmentation

3Reliability

If porous structures are integrated into semi-finished parts, then osseointegration is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveosseointegration capabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent directly applies porous materials by integrating porous structures into the semi-finished parts during the 3D printing process. These porous structures provide enhanced osseointegration capabilities and osseo conductivity for medical implants while being manufactured through established additive manufacturing techniques, avoiding significant increases in manufacturing complexity

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent merges multiple functions into the semi-finished parts by combining porous structures with clamping features, mounting points, and other functional elements in a single integrated component. This reduces the need for separate assembly steps and minimizes overall structural complexity while maintaining improved osseointegration capabilities

Inventive Principle:
Principle #5Merging (Combining)

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 solution enables the production of medical devices with enhanced mechanical properties and osseointegration, allowing for precise pore formation and material tuning, improving bone replacement and augmentation capabilities while simplifying the manufacturing process.

Implementation Method 1

a 3D-printed semi-finished part for manufacturing at least one medical device

Methodology Applied
Scientific Effect3D Printing: 3D Printing

Implementation Method 2

the at least one functional feature may include a porous structure

Methodology Applied
Scientific EffectPorosity: Porosity

Data Source

PatentUS20240122715A13d-printed semi-finished part for medical device manufacturing and medical devices thereof
Publication Date: 2024.04.18 KUMOVIS GMBH
  • US20240122715A1 patent drawing

AI summary

The present disclosure relates to a 3D-printed semi-finished part for manufacturing at least one medical implant or medical instrument, the semi-finished part including:at least one functional feature provided at a predefined location of the semi-finished part.