Vacuum Device and Method of Monitoring an Ophthalmological Patient Interface
AssigneeZiemer Ophthalmic Systems AG
InventorChristian Rathjen
Life of this patent
Estimating the term…
Abstract
A vacuum device comprises a vacuum generator and a vacuum interface for fluidically coupling the vacuum generator to a vacuum cavity for affixing an ophthalmological patient interface on a patient's eye. The vacuum device comprises a movement detector which is configured to detect movements of the patient's eye and a control unit that is configured to detect a faulty fluidic coupling of the vacuum cavity on the basis of a pressure that is ascertained by a coupled pressure sensor and to produce a control signal for interrupting an ophthalmological treatment that is carried out by an ophthalmological treatment device if an eye movement is detected by the movement detector at the same time as the detected faulty fluidic coupling of the vacuum cavity.
Claims16
A vacuum device for affixing an ophthalmological patient interface on a patient's eye, the vacuum device comprising:
- a vacuum generator and a vacuum interface for fluidic coupling of the vacuum generator on a vacuum cavity of the patient interface;
- an internal pressure sensor that is fluidically coupleable to the patient interface and/or a pressure-measuring interface for a signal-coupling of an external pressure sensor of the patient interface;
- a movement detector which is configured to detect movements of the patient's eye;
- and
- a control unit which is configured to detect a faulty fluidic coupling of the vacuum cavity on a basis of a pressure that is ascertained by the coupled pressure sensor during an ophthalmological treatment that is carried out by an ophthalmological treatment device and to produce a control signal for interrupting the ophthalmological treatment that is carried out by the ophthalmological treatment device if an eye movement is detected by the movement detector at the same time as the detected faulty fluidic coupling of the vacuum cavity.
A method of monitoring an ophthalmological patient interface which is affixed on a patient's eye by means of a vacuum that is produced by a vacuum generator in a vacuum cavity of the patient interface, the method comprising:
- ascertaining a pressure by means of a pressure sensor that is fluidically coupled to the patient interface and/or by means of a contact pressure sensor of the patient interface during an ophthalmological treatment that is carried out by an ophthalmological treatment device;
- detecting movements of the patient's eye by means of a movement detector;
- detecting a faulty fluidic coupling of the vacuum cavity at the vacuum generator by way of a control unit on a basis of the ascertained pressure;
- and
- producing a control signal by way of the control unit for interrupting the ophthalmological treatment that is carried out by the ophthalmological treatment device if an eye movement is detected by the movement detector at the same time as the detected faulty fluidic coupling of the vacuum cavity.
Dependencies are inferred from the claim text.