Ophthalmological negative-pressure device and patient interface

Abstract

The invention relates to a negative-pressure device () for affixing a patient interface () with a negative-pressure cavity () onto a patient eye. The negative-pressure device () comprises a negative-pressure generator () and a pressure sensor () with a device-side pressure sensor interface () for coupling the pressure sensor () to the negative-pressure cavity in a manner fluidically separate from the negative-pressure interface (). The negative-pressure device furthermore relates to a control unit () operatively coupled to the negative-pressure generator () and the pressure sensor (), wherein the control unit () is designed to detect a faulty fluidic coupling of the negative-pressure cavity () by evaluating a pressure established by the pressure sensor (). The invention furthermore relates to a patient interface () with a negative-pressure cavity (), wherein the negative-pressure cavity () 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 () to a patient eye.