WO2025141307 - MULTI-MATERIAL 3D MICRO-PRINTING IN LAMINAR FLOW
National phase entry is expected:
Publication Number
WO/2025/141307
Publication Date
03.07.2025
International Application No.
PCT/IB2023/063323
International Filing Date
28.12.2023
Title **
[English]
MULTI-MATERIAL 3D MICRO-PRINTING IN LAMINAR FLOW
[French]
MICRO-IMPRESSION 3D MULTI-MATÉRIAUX DANS UN ÉCOULEMENT LAMINAIRE
Applicants **
VITAL3D TECHNOLOGIES
Inventors
JONUSAUSKAS, Linas
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1865 | |
| EPO | Filing, Examination, Granting | 8126 | |
| Japan | Filing, Examination, Granting | 2062 | |
| South Korea | Filing, Examination, Granting | 1791 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
18,584
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Abstract[English]
This invention presents a method for multi-material 3D micro-printing using a microfluidic channel, where photosensitive materials are polymerized in flow by a laser. This technique removes the need for a mechanical Z-axis, with material flow in the channel serving as the Z-axis movement. The laser uses fast scanning or beam shaping to form structures in the XY plane. The channel walls are designed to be transparent to the laser wavelength for effective focusing and polymerization. The system accommodates different optical exposure configurations, such as transverse, colinear, or angular. A notable aspect is its capability for in situ multi-material printing, made possible by laminar flow that minimizes material mixing, allowing for the creation of complex, multi-material 3D structures. This method enhances the precision and complexity achievable in 3D micro-printing applications.[French]
La présente invention concerne un procédé de micro-impression 3D multi-matériaux à l'aide d'un canal microfluidique, les matériaux photosensibles étant polymérisés en écoulement par un laser. Cette technique élimine le besoin d'un axe Z mécanique, avec un écoulement de matériaux dans le canal servant de mouvement d'axe Z. Le laser utilise un balayage rapide ou une mise en forme de faisceau pour former des structures dans le plan XY. Les parois de canal sont conçues pour être transparentes à la longueur d'onde laser pour une focalisation et une polymérisation efficaces. Le système reçoit différentes configurations d'exposition optique, telles que des configurations transversales, colinéaires ou angulaires. Un aspect notable est sa capacité d'impression multi-matériaux in situ, rendue possible par un écoulement laminaire qui réduit au minimum le mélange de matériaux, permettant ainsi la création de structures 3D multi-matériaux complexes. Ce procédé améliore la précision et la complexité pouvant être obtenues dans des applications de micro-impression 3D.