# US 12,109,148 B1 · Corneal irrigation system and method of use

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- Number: US 12,109,148 B1
- Document ID: US12109148B1
- Status: Granted
- Kind: B1
- Application number: 18/603,461
- Filed: 2024-03-13
- Granted: 2024-10-08
- Earliest claimed: 2024-03-13
- Applicants: Alexander Ilich Movshovich
- Inventors: Alexander Ilich Movshovich
- Web page: https://patentgrep.com/patent/US12109148B1

## CPC

- A61F 9/00709: {Instruments for removing foreign bodies (for removal of intra-ocular material A61F9/00736)}
- A61F 9/0017: {implantable in, or in contact with, the eye, e.g. ocular inserts}
- A61F 9/007: Methods or devices for eye surgery
- A61F 9/00781: {Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment (drainage implants in general A61M27/002)}
- A61M 5/31513: {Piston constructions to improve sealing or sliding}
- A61M 2210/0612: Eyes
- 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)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A corneal irrigation system, for removing a color pigment(s) from an intracorneal channel, includes a syringe, an irrigation device, and a flexible tube coupling the syringe to the irrigation device. The irrigation device includes a handle, having a distal end and a proximal end, that is coupled to the cannula. The handle also includes a lumen. The cannula includes (i) a shaft section having a first end that is coupled to the handle's proximal end, (ii) a curved section having a blunt tip, wherein an exterior surface of the curved section includes a rough-surface region, and (iii) a lumen having an opening in the rough-surface region, the lumen extending from the first end of the shaft section toward the blunt tip. The cannula's lumen is coupled to the handle's lumen.

## Claims

### Claim 1

A method for irrigating an intracorneal channel within a cornea using a hand-held irrigation device comprising a cannula that includes (i) a shaft section having a first end, (ii) an arcuate section having a blunt tip, wherein an exterior surface of the arcuate section comprises a rough-surface region, and (iii) a lumen extending from the first end of the shaft section toward the blunt tip of the arcuate section, the lumen including an opening in the rough-surface region of the arcuate section, the method comprising the steps of:
accessing the intracorneal channel via a radial incision;
inserting a part of the rough-surface region of the arcuate section into the intracorneal channel;
moving the inserted part of the rough-surface region of the arcuate section within the intracorneal channel to detach a plurality of color pigments from a first wall of the intracorneal channel and a second wall of the intracorneal channel; and
injecting an irrigation fluid into the intracorneal channel through the opening, to flush the detached plurality of color pigments from the intracorneal channel.

### Claim 2 (depends on 1)

The method of claim 1, wherein the injecting step is performed by injecting the irrigating fluid into the intracorneal channel through the lumen opening in the rough-surface region of the arcuate section.

### Claim 3 (depends on 2)

The method of claim 2, wherein the injecting step is performed simultaneously with the moving step.

### Claim 4 (depends on 2)

The method of claim 2, wherein the injecting step is performed following the moving step.

### Claim 5 (depends on 1)

The method of claim 1, wherein the moving step comprises moving the inserted part of the rough-surface region back and forth.

### Claim 6 (depends on 1)

The method of claim 1, wherein the step of accessing the intracorneal channel via a radial incision is performed using a spatula.