Device and method for fracturing and removing ocular lenses
US11369514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Sep 3, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a device for fracturing and removing ocular lenses. The device mainly comprises a rotational screw drill, a sleeve and a hydraulic suction system. The rotational screw drill has reversed conical propellers which help to grind the particles. The rotational screw drill is housed in a sleeve, which comprises a rigid cylinder and a suction cup. The suction cup has a bell or funnel shape with an elliptical cross-section. Finally, the hydraulic suction system is key for the present invention performance. Also, the invention relates to a method comprising the steps of breaking, splitting the cataract or lens tissue and simultaneously or subsequently grinding the particles inside the sleeve by means of the rotational screw drill and the sleeve, and finally removing them from the medium via the sleeve by means of a hydraulic suction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.