Double lumen phacoemulsification needle tip
US8439933B2 · kind B2 · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/85
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A phacoemulsifcation needle has a central aspiration passageway extending through a needle body. A hollow shell is attached to and covers at least a portion of the needle body, creating an annular space between the inner surface of the shell and the outer surface of the needle body. At least one port is formed through the needle body communicating between the aspiration passageway and the annular space to create a flow path. The openings to the needle body and the shell may be coplanar or may lie in different planes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.