Injection needle, injection apparatus employing same and method of making
US10449293B2 · kind B2 · utility
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6References
8Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 2, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Mar 2, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid injection needle has a relatively precision fluid flow path. The needle comprises a needle shaft and a sizing shaft axially extending within the needle shaft lumen a selected distance distal of a fluid entry port into the lumen. The sizing shaft has a cross-sectional size smaller than the lumen to define a fluid flow path between the sizing shaft and the needle shaft. An injection device employing such an injection needle and a method of making such a needle are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.