Ophthalmological negative-pressure device and patient interface
US10238287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a negative-pressure device (1) for affixing a patient interface (2) with a negative-pressure cavity (20) onto a patient eye. The negative-pressure device (1) comprises a negative-pressure generator (10) and a pressure sensor (11) with a device-side pressure sensor interface (14) for coupling the pressure sensor (11) to the negative-pressure cavity in a manner fluidically separate from the negative-pressure interface (13). The negative-pressure device furthermore relates to a control unit (12) operatively coupled to the negative-pressure generator (10) and the pressure sensor (11), wherein the control unit (12) is designed to detect a faulty fluidic coupling of the negative-pressure cavity (20) by evaluating a pressure established by the pressure sensor (11). The invention furthermore relates to a patient interface (2) with a negative-pressure cavity (20), wherein the negative-pressure cavity (20) has a negative-pressure interface and a fluidically separate pressure sensor interface, as well as a patient interface with an integrated pressure sensor. The invention furthermore relates to a method for coupling a patient interface (2) to a patient eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.