Ophthalmic irrigator-aspirator having a flexible outer cannula
US5873851A · kind A · utility
34Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1996 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The outer cannula of an ophthalmic irrigator-aspirator has rigid tip and butt sections and a more flexible central section. The central section can be an elastomeric sleeve that extends between the tip and butt sections. The outer cannula includes reinforcement members that prevent the elastomeric sleeve from becoming completely closed by compression caused by a tight fit in an incision in a patient's cornea. The reinforcement members may be rigid or somewhat flexible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.