Method of manufacturing needles
US5620639A · kind A · utility
27Cited by
4References
15Claims
0Family size
Inventors
Key dates
| Filing date | Oct 17, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Oct 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7544
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing an integral one-piece needle, the method comprising feeding a polymeric resin into a mould cavity and injecting a fluid under pressure into at least a portion of the cavity to eject therefrom the central region of the polymeric resin. This creates an annulus of polymeric resin having an orifice therethrough, the annulus of polymeric resin forming the cannula of the needle, the mounting hub being provided by the remaining portion of the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.