Phacoemulsification needle
US10667946B2 · kind B2 · utility
0Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2011 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Nov 11, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/00745
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A phacoemulsification needle has a polygonally-shaped tip with an axis that is offset from the axis of the needle body. The material forming the tip is non-uniformly distributed, adding to the motion of the tip when it is vibrated torsionally. In one embodiment, the tip has tip wall segments of varying thicknesses. In another embodiment, the tip has a series of external ribs formed on the tip wall segments, on the wall segment, at the apex where adjacent wall segments meet, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.