Method of producing a test body for diffusion tensor imaging
US11931954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Apr 19, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of producing a test body for diffusion tensor imaging, which comprises a plurality of channels in a structuring material, the channels preferably having a maximum cross-section of 625 μm2, wherein a virtual model of the test body is created and the virtual model is fed to a structuring device which produces the test body by means of a 3D printing-based, in particular lithography-based, structuring process, the structuring process being designed as a multiphoton lithography process, in particular as a multiphoton absorption process, in which the structuring material containing a photosensitizer or photoinitiator is irradiated in a location-selective manner, wherein the radiation is successively focused on focal points lying within the structuring material, resulting in that in each case a volume element of the material located in the focal point is subjected to a change in state by means of a photochemical reaction as a result of multiphoton absorption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.