# US 7,611,507 B2 · Disposable patient interface

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- Number: US 7,611,507 B2
- Document ID: US7611507B2
- Status: Granted
- Kind: B2
- Application number: 11/258,399
- Filed: 2005-10-24
- Published: 2007-04-26
- Granted: 2009-11-03
- Earliest claimed: 2005-10-24
- Assignees: AMO Development, LLC
- Inventors: Ferenc Raksi; Tibor Juhasz; Ron Kurtz; Wes Lummis; Chris Davis; Laszlo Nagy
- Web page: https://patentgrep.com/patent/US7611507B2

## CPC

- A61F 9/009: Auxiliary devices making contact with the eyeball and coupling in laser light, {e.g. goniolenses (apparatus for eye examination A61B3/0008)}
- A61B 2017/306: {holding by means of suction}
- A61F 9/008: using laser
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A patient interface device adapted to provide an interface between a cornea and a surgical laser system. A frame has an applanation end and an attachment end which is adapted to couple to the surgical laser system. A skirt is affixed to the applanation end of the frame and is adapted to seal against the anterior surface of the cornea to form a chamber. A lens is disposed near the applanation end of the frame and is supported by a flexible support which affixes the lens to the frame.

## Claims

### Claim 1

A patient interface device adapted to provide an interface between a cornea and a surgical laser system, the device comprising:
a frame having an applanation end and an attachment end, wherein the attachment end is adapted to couple to the surgical laser system;
a skirt affixed to the applanation end of the frame, wherein the skirt is adapted to seal against an anterior surface of the cornea to form a chamber;
a lens disposed near the applanation end of the frame; and
a flexible support affixing the lens to the frame.

### Claim 2 (depends on 1)

The device of claim 1, wherein the attachment end comprises non-perforated sidewalls.

### Claim 3 (depends on 2)

The device of claim 2, wherein the sidewalls form a conical cavity.

### Claim 4 (depends on 1)

The device of claim 1, wherein the applanation end of the frame includes a vent port.

### Claim 5 (depends on 1)

The device of claim 1, wherein the flexible support comprises a biological barrier.

### Claim 6 (depends on 1)

The device of claim 1, wherein the flexible support is annular.

### Claim 7 (depends on 6)

The device of claim 6, wherein the lens is centered on the annular flexible support.

### Claim 8 (depends on 1)

The device of claim 1, wherein the attachment end is adapted to couple to the surgical laser system.

### Claim 9 (depends on 1)

The device of claim 1, wherein the attachment end comprises a ferromagnetic material.

### Claim 10 (depends on 1)

The device of claim 1 further comprising a vacuum pump in fluid communication with the chamber.

### Claim 11 (depends on 1)

The device of claim 1, wherein the skirt is annular.

### Claim 12

A patient interface device adapted to provide an interface between a cornea and a surgical laser system, the device comprising:
a frame having an applanation end and an attachment end, wherein the attachment end includes non-perforated sidewalls and the attachment end is adapted to couple to the surgical laser system, and wherein the applanation end includes a vent port;
a skirt affixed to the applanation end of the frame, wherein the skirt is adapted to seal against an anterior surface of the cornea to form a chamber, the vent port not in fluid communication with the chamber;
a lens disposed near the applanation end of the frame; and
a flexible biological barrier affixing the lens to the frame.

### Claim 13 (depends on 12)

The device of claim 12, wherein the sidewalls form a conical cavity.

### Claim 14 (depends on 12)

The device of claim 12, wherein the biological barrier is annular.

### Claim 15 (depends on 14)

The device of claim 14, wherein the lens is centered upon the annular biological barrier.

### Claim 16 (depends on 12)

The device of claim 12, wherein the attachment end includes a ferromagnetic material.

### Claim 17 (depends on 12)

The device of claim 12 further comprising a vacuum pump in fluid communication with the chamber.

### Claim 18 (depends on 12)

The device of claim 12, wherein the skirt is annular.

### Claim 19

A patient interface device adapted to provide an interface between a cornea and a surgical laser system, the device comprising:
a frame having an applanation end and an attachment end, the attachment end is adapted to couple to the surgical laser system, and the applanation end includes at least one vent port;
an annular skirt affixed to the applanation end of the frame, wherein the skirt is adapted to seal against an anterior surface of the cornea to form a first chamber;
a lens disposed near the applanation end of the frame;
an annular, flexible biological barrier affixing the lens to the frame, wherein the lens is centered upon the biological barrier; and
a vacuum pump in fluid communication with the first chamber;
wherein the lens, the biological barrier, the anterior surface of the cornea, the applanation end, and the skirt form a second chamber in fluid communication with the at least one vent port, the second chamber having a volume varying as the lens displaces on the biological barrier.

### Claim 20 (depends on 19)

The device of claim 19, wherein the attachment end includes a ferromagnetic material.