US 12,403,293 B2
Medical device for applying semi-permanent tattoo ink
Jason Candreva, Malverne, NY (US)
Assigned to Jason Candreva, Malverne, NY (US)
Filed by Jason Candreva, Malverne, NY (US)
Filed on Nov. 9, 2021, as Appl. No. 17/454,173.
Claims priority of provisional application 63/111,758, filed on Nov. 10, 2020.
Prior Publication US 2022/0143379 A1, May 12, 2022
Int. Cl. A61M 37/00 (2006.01); A61K 8/11 (2006.01)
CPC A61M 37/0084 (2013.01) [A61K 8/11 (2013.01); A61K 2800/43 (2013.01); A61K 2800/654 (2013.01); A61M 2202/0468 (2013.01); A61M 2205/051 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sterile, single-use tattoo device comprising:
i) a hypodermic safety needle, and
ii) an ampoule made of plastic containing a semi-permanent, disappearing tattoo ink and a breakable membrane which allows ink to flow at the time of tattoo application;
wherein the semi-permanent, disappearing tattoo ink only remains visible to the naked eye for between 4 weeks and 18 months after it is tattooed on a patient's skin, is removed by the patient's immune system after it is tattooed on a patient's skin wherein the patient's immune system begins removing the semi-permanent, disappearing tattoo ink between 2 and 6 weeks after it is tattooed on a patient's skin, and wherein the semi-permanent, disappearing tattoo ink comprises:
a) particles, wherein the particles comprise:
i) a shell comprising bioabsorbable and biodegradable polymer; and
ii) a core comprising:
I) bioabsorbable and biodegradable polymers or a hydrogel matrix and a coloring agent having a molecular weight between 5 and 10×106 Daltons, wherein said coloring agent is intercalated, non-covalently, or covalently bound with the polymer or hydrogel matrix, and wherein the bioabsorbable and biodegradable polymer comprises a homopolymer, a copolymer, a diblock or triblock copolymer chosen from one or a combination of: polycaprolectone (PCL), poly L-lactic acid (PLLA), poly(lactic-co-glycolic acid) (PLGA), polyethylene glycol (PEG), polyethylene glycol-diacrylate (PEGDA), polyorthoester, aliphatic polyanhydride, or aromatic polyanhydride; or
II) a coloring agent having a molecular weight between about 5 and about 10×106 Daltons; wherein said coloring agent is encapsulated by the shell polymer wherein the shell bioabsorbable and biodegradable polymer comprises a first block or diblock polymer chosen from one or a combination of: polycaprolectone (PCL), poly L-lactic acid (PLLA), poly(lactic-co-glycolic acid) (PLGA), polyethylene glycol (PEG), polyethylene glycol-diacrylate (PEGDA), polyorthoester, aliphatic polyanhydride, poly(sebacic anhydride) (poly(SA)), or aromatic polyanhydride; and
b) a carrier solution.