System and method for positioning a patient for laser surgery
Assignee20/10 Perfect Vision Optische Geraete GmbH
InventorsFrieder Loesel, Klaus Baumeister, Ulrich von Pape, Thomas Sauter
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Abstract
A system for positioning the eye of a patient, relative to a stationary surgical laser unit, includes a chair for moving the patient. An eye stabilizing element is held against the eye, with a tapered receptacle extending outwardly therefrom. Also, an alignment device with a tapered tip is mounted on the surgical laser unit. In operation, the patient is moved to engage the receptacle of the eye stabilizing element with the tip of the alignment device, to thereby align the patient's eye with the surgical laser unit for laser surgery.
Claims15
A system for positioning an eye of a patient for laser surgery which comprises:
- a surgical laser unit for generating a laser beam;
- an eye stabilizing element formed with a receptacle;
- a means for holding said eye stabilizing element in contact with the anterior surface of the cornea of the eye to project said receptacle outwardly therefrom;
- an alignment device, mounted on said surgical laser unit, wherein said alignment device is formed with a tip, and further wherein said tip is dimensioned for mating engagement with said receptacle of said eye stabilizing element;
- at least one pressure sensor, mounted on said surgical laser unit, for measuring interactive forces between said alignment device and said eye stabilizing element;
- a means for determining pressures exerted on the eye using said measured interactive forces;
- and
- a means for moving the patient and said eye stabilizing element into engagement with said alignment device, for positioning the eye of the patient at a predetermined location relative to said surgical laser unit for laser surgery.
A method for positioning an eye of a patient for laser surgery which comprises the steps of:
- holding an eye stabilizing element in contact with the anterior surface of the eye, said eye stabilizing element being formed with a receptacle, with said receptacle extending outwardly from the eye when said eye stabilizing element is held thereon;
- mounting an alignment device on a surgical laser unit, wherein said alignment device is formed with a tip, said tip being dimensioned for mating engagement with said receptacle of said eye stabilizing element;
- moving said eye stabilizing element into engagement with said alignment device to position the eye of the patient at a predetermined location relative to said surgical laser unit for laser surgery;
- monitoring at least one pressure sensor mounted on said surgical laser unit, wherein said pressure sensor measures the interactive forces between said alignment device and said eye stabilizing element;
- and
- determining pressures exerted on the eve using said measured interactive forces.
A system for positioning an eye of a patient for laser surgery which comprises:
- a surgical laser unit for generating a laser beam;
- an eye stabilizing element formed with a receptacle;
- a means for holding said eye stabilizing element in contact with the anterior surface of the cornea of the eye to project said receptacle outwardly therefrom;
- an alignment device, mounted on said surgical laser unit, wherein said alignment device is formed with a tip, and further wherein said tip is dimensioned for mating engagement with said receptacle of said eye stabilizing element;
- a means for moving the patient and said eye stabilizing element into engagement with said alignment device, for positioning the eye of the patient at a predetermined location relative to said surgical laser unit for laser surgery;
- and
- a plurality of light sources for illuminating the eye, wherein said light sources create an observable pattern of reflected light, and further wherein said observable pattern of reflected light can be compared to a predetermined pattern of light for verifying the positioning of the eye.
Dependencies are inferred from the claim text.