Method of delivering leading blebs and agent to subretinal space
US11759355B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/158
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method includes inserting a flexible cannula between a sclera and a choroid of an eye. The needle is advanced from a distal end of the flexible cannula, such that the needle pierces the choroid to access a subretinal space of the eye. The needle is used to deliver a first volume of leading bleb fluid to the subretinal space. The delivery of leading bleb fluid is ceased for a duration of time. After expiration of the duration of time, the needle is used to deliver a second volume of the leading bleb fluid to the subretinal space. The combination of the delivered first and second volumes of the leading bleb fluid causes a substantial portion of the retina to detach from the choroid. A therapeutic agent may then be delivered to the subretinal space in the region where the retina is detached from the choroid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.