Needle unit and dermatological liquid injection apparatus using the same
US8920379B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/46
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a needle unit for injecting liquids such as medicine or tattooing pigment spread to a skin, into the skin, and a dermatological liquid injection apparatus using the same. The present invention includes a body unit including a driving device, a cam member rotated by the driving device, and a connecting member reciprocally driven by the cam member; a needle unit detachably mounted to a front end of the body unit; and a rubber member installed to the needle unit, for blocking blood and liquid mixture which are discharged from a skin of a patient and flow into the needle unit, from flowing to the body unit during a medical procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.