Device and method for removing gas and debris during the photodisruption of stromal tissue
US6676653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for removing gas and debris from the stroma of an eye during ophthalmic laser surgery includes a contact lens that is formed with a recessed chamber. The device also includes a suction pump that is connected in fluid communication with the recessed chamber. In operation, the stroma is stabilized in the recessed chamber of the contact lens and an opening into the stroma is created. This opening is created either by the laser beam, or by a probe that is mounted on the contact lens to penetrate the stroma while the stroma is stabilized in the recessed chamber of the contact lens. Then, simultaneously or subsequently, as a laser beam is directed through the contact lens to photodisrupt tissue in the stroma the suction pump is activated to aspirate the resultant gas and debris through the opening and out of the stroma.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.