Drug transferring needle and drug transferring method
US9254243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Oct 26, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/162
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drug transferring needle includes a needle base portion, a first needle portion having therein an air passage, and a second needle portion longer than the first needle portion and arranged parallel to the first needle portion. In the first needle portion, a first air vent being one end of the air passage is provided on a distal end side of the second needle portion from a second air vent being the other end of the air passage. In the second needle portion, one end of a liquid passage is connected to the inside of the needle base portion, and the other end thereof is a liquid pass opening of the second needle portion. The second needle portion has a distal end having the liquid pass opening, a base portion connected to the needle base portion, and an intermediate portion connecting the distal end and the base portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.