Removable tattoo ink and the use thereof
US10028897B2 · kind B2 · utility
0Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2013 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | May 1, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided is a removable tattoo ink that is composed of colored micro-particles that create permanent tissue markings, such as tattoos. The micro-particles include an inner core housing a bio-absorbable chromophore and an outer shell, which includes polystyrene sulfonate and polyallylamine hydrochloride and is designed for rupture with ultrasonic energy. The micro-particles can be implanted in the tissue of a subject, for example to create a tattoo and ruptured in situ by the application of ultrasonic energy to remove the tattoo. Also provided are methods of making the colored micro-particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.