Devices for applying coloured liquid to skin
US11197986B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Oct 9, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M37/0076
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A handle for an applicator of coloured liquid to skin comprises a removable needle module and a needle actuator. The needle module comprises a needle. The handle comprises a handle body having top and bottom portions. The top portion is engagable with the needle actuator and has a top opening for receiving a drive shaft of the needle actuator. The bottom portion is removably engagable with the needle module and has a bottom opening for receiving a needle shaft of the needle. A reciprocally movable interface sealingly engages an internal surface of the handle body. The interface separates the bottom opening from the top opening so as to prevent fluid communication from the bottom opening to the top opening, and is configured to abut the drive shaft and the needle shaft during use to allow the drive shaft to indirectly drive the needle shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.