Devices for applying coloured liquid to skin
US10806915B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 30, 2017 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/197
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A handle for an applicator of coloured liquid to skin is provided. The applicator comprises a needle and a needle actuator. The handle comprises a handle body having top and bottom portions. The top portion is engagable with the needle actuator and having a top opening for receiving a drive shaft of the needle actuator. The bottom portion is engagable with a needle module comprising the needle and having a bottom opening for receiving a needle shaft of the needle. The handle also comprises a reciprocally movable interface sealingly affixed to 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.