Winged injection needle device
US6375640B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/325
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection needle device includes an injection needle; a holder holding the base end of the injection needle and having a through hole in communication with the injection needle; a tube through which a liquid medicine can flow; a connector connecting the holder and the tube so that they are in communication with each other; a cylindrical stretchable member capable of stretching or contracting in an axial direction, one end of the member being connected to at least one of the holder, the tube and the connector; and a cylindrical protector through which the injection needle passes, the protector being provided with a wing and being connected to another end of the stretchable member. In this injection needle device, the stretchable member is stretched or contracted so as to slide said protector to change its position with respect to the injection needle within a range including a position in which the tip of the injection needle is completely contained in the protector, whereby an exposed length of the injection needle exposed from the protector can be changed into a desired length. The stretchable member itself can maintain a certain stretched or contracted state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.