Expandable shield instrument for use in intraocular surgery
US8449568B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 3, 2008 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Aug 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/08021
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument capable of providing large-area shielding within an isolated operating region, such as the eye, while being passable through a small incision in the region through which the instrument must be inserted. For example, an instrument capable of being passed through a typical 3 mm (or smaller) phacoemulsification incision without undue damage to ocular tissue, and which expands to provide large-area shielding, e.g. to occlude a large-diameter (e.g. approx. 6 mm) posterior capsule opening. The surgical instrument includes two or more leaves, the leaves being interconnected by at least one fastener in a manner that causes expansion of a leading or distal portion of the instrument when the following or proximal portions of each leaf are manipulated, whether by a user or through interaction with a wall of the incision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.