Multi-Head Bioprinter for Complex Multi-Material Scaffolds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing additive manufacturing devices are inadequate for producing complex and effective implants, and corresponding software is insufficient to handle the challenges in workpiece generation.
Innovation Solution
A bioprinter system with a base plate, printhead, arcuate track, and frame, controlled by a controller, capable of depositing materials and providing specific environmental conditions, is designed to fabricate complex regenerative scaffolds and customized tissues like vascularized bone grafts or joint replacements using multi-head, multi-axial extrusion printing and laser manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing additive manufacturing devices are used, then simple structures can be produced, but complex and effective implants cannot be produced
Solution Approach 1:
The bioprinter system is divided into multiple printheads (first printhead, second printhead) that can independently deposit different materials. Each printhead can be controlled separately to create complex multi-material structures, resolving the contradiction by segmenting the printing function across multiple specialized units rather than relying on a single printhead
Solution Approach 2:
The bioprinter system integrates multiple functions including material deposition, environmental control, and laser manipulation within a single platform. The system can handle multiple material types (biomaterials, scaffolds, cells) and perform various operations (extrusion printing, laser manipulation) to achieve both structural complexity and functional versatility required for complex implants
2Manufacturing precision
If multi-head multi-axial extrusion printing is implemented, then complex regenerative scaffolds can be fabricated, but device complexity increases
Solution Approach 1:
The system employs multi-axial movement capabilities that allow printheads to move beyond simple linear paths into three-dimensional space with multiple degrees of freedom. This dimensional expansion enables the fabrication of complex regenerative scaffolds with intricate geometries while the coordinated control system manages the increased device complexity through synchronized multi-axis operation
3Manufacturing precision
If environmental chamber is added for specific environmental conditions, then material deposition quality improves, but device complexity increases
Solution Approach 1:
The environmental chamber is integrated with the bioprinter system, combining material deposition functionality with environmental control in a unified structure. The chamber houses the printheads and build platform while providing controlled temperature, humidity, and atmospheric conditions, thereby improving deposition quality for sensitive biomaterials without requiring separate standalone environmental control equipment
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
Enables the controlled deposition of cells, biologics, and scaffold materials in mixed gradients, facilitating the production of complex implants with enhanced integration capabilities into the body.
Implementation Method 1
a printhead comprising a nozzle defining a lumen, wherein the printhead is configured to deposit a material on the base plate via the lumen
Implementation Method 2
an arcuate track comprising a groove, wherein the printhead is slidably attached to the arcuate track by being at least partially disposed within the groove
Implementation Method 3
a frame rotatably attached to the arcuate track
Implementation Method 4
a controller communicatively connected to the base plate, the arcuate track, and the frame, wherein the controller is configured to control movement of move of the base plate, the arcuate track, and the frame
Implementation Method 5
an environmental chamber configured to provide specific environmental conditions for the material
Data Source
AI summary
At a high level, disclosed herein is a bioprinter configured to fabricate a single but highly complex and multi-material regenerative scaffold compared to a more traditional approach of mass production of simple shapes. In an embodiment, printer may include a multi-head, multi-axial bio-printer for extrusion printing and laser manipulation of scaffold and/or organic materials specific to a particular tissue such as without limitation customized vascularized bone graft or joint replacement tissue. Printer may facilitate controlled deposition of cells, biologics, and/or scaffold and organic materials in controlled, mixed gradients.