Liquid optical interface for laser eye surgery system
First Claim
1. An apparatus to treat an eye, the apparatus comprising:
- a patient interface comprising,an annular structure to engage an anterior surface of the eye, the annular structure comprising an opening to receive a portion of the eye and a channel to couple to the eye with suction, andan optically transmissive structure to transmit light through the opening of the annular structure, wherein the optically transmissive structure and the annular structure define portions of an interface container when coupled to the eye, the interface container comprising an interface container volume;
a suction line coupled to the channel, configured to provide a suction pressure in the channel; and
a fluid collection container comprising an inlet, an outlet, and a fluid stop, the inlet coupled to the channel of the annular structure via the suction line, the fluid collection container comprising a collection volume greater than the interface container volume,wherein the fluid stop is configured to pass gas and inhibit flow of a liquid or viscous material received from the fluid collection container, andwherein the fluid collection container is configured to collect a fluid that has flown from the interface container into the channel and is drawn into the fluid collection container by the suction pressure.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus to treat an eye comprises an annular retention structure to couple to an anterior surface of the eye. The retention structure is coupled to a suction line to couple the retention structure to the eye with suction. A coupling sensor is coupled to the retention structure or the suction line to determine coupling of the retention structure to the eye. A fluid collecting container can be coupled to the retention structure to receive and collect liquid or viscous material from the retention structure. A fluid stop comprising a porous structure can be coupled to an outlet of the fluid collecting container to inhibit passage of the liquid or viscous material when the container has received an amount of the liquid or viscous material. The coupling sensor can be coupled upstream of the porous structure to provide a rapid measurement of the coupling of the retention structure to the eye.
38 Citations
22 Claims
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1. An apparatus to treat an eye, the apparatus comprising:
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a patient interface comprising, an annular structure to engage an anterior surface of the eye, the annular structure comprising an opening to receive a portion of the eye and a channel to couple to the eye with suction, and an optically transmissive structure to transmit light through the opening of the annular structure, wherein the optically transmissive structure and the annular structure define portions of an interface container when coupled to the eye, the interface container comprising an interface container volume; a suction line coupled to the channel, configured to provide a suction pressure in the channel; and a fluid collection container comprising an inlet, an outlet, and a fluid stop, the inlet coupled to the channel of the annular structure via the suction line, the fluid collection container comprising a collection volume greater than the interface container volume, wherein the fluid stop is configured to pass gas and inhibit flow of a liquid or viscous material received from the fluid collection container, and wherein the fluid collection container is configured to collect a fluid that has flown from the interface container into the channel and is drawn into the fluid collection container by the suction pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification