Intralenticular cataract surgery
US4191176A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1977 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Aug 23, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0612
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An enzymatic intralenticular cataract treatment for removal of nuclear cortical and subcapsular regions of the cataractous lens through enzymatic digestion thereof which comprises introduction of a concentrated solution of a trypsin enzyme into the nuclear and cortical regions of a cataractous lens, and after enzymatic digestion removing the liquefied cataractous material. The procedure allows subsequent removal of the nuclear, cortical and subcapsular portions of a cataractous lens through a very tiny incision in the eye and lens capsule, leaving all other structures within the eye intact. Bovine and porcine trypsins are preferred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.