Sampling needle and methods of forming and using same
US8313476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Nov 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A inert sampling needle is provided for piercing a septum of a vial containing a sample. The sampling needle includes a hollow rigid support member having an inner wall, an outer wall, and a septum-piercing end. The sampling needle also includes a sheath member affixed to the rigid support member. The sheath member covers the septum-piercing end of the support member, the inner wall, and at least a portion of the outer wall adjacent the septum-piercing end to isolate the support member from the sample. Preferably, the sheath member is formed of polyetheretherketone and is affixed to the rigid support member by heat fusing. A method of forming, and a method of using the inert sampling needle is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.