# US 11,998,485 B2 · Ophthalmic surgical apparatus

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- Number: US 11,998,485 B2
- Document ID: US11998485B2
- Status: Granted
- Kind: B2
- Application number: 16/964,707
- Filed: 2018-11-28
- Published: 2020-11-05
- Granted: 2024-06-04
- Earliest claimed: 2018-03-12
- Assignees: Choi's Ophthalmic Institute
- Applicants: Choi's Ophthalmic Institute
- Inventors: Hung Won Chah; Soon Ki Lim; Woon Jung Cho
- Web page: https://patentgrep.com/patent/US11998485B2

## CPC

- A61F 9/007: Methods or devices for eye surgery
- A61F 9/0079: {using non-laser electromagnetic radiation, e.g. non-coherent light or microwaves}
- A61B 18/1477: {Needle-like probes}
- A61B 2018/00077: {high, i.e. electrically conducting}
- A61B 2018/00172: {Connectors and adapters therefor}
- A61B 2018/00321: {Head or parts thereof}
- A61B 2018/00589: {Coagulation}
- A61B 2018/00601: {Cutting}
- A61B 2018/00964: {Features of probes}
- A61B 2018/1495: {Electrodes being detachable from a support structure}
- 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

An ophthalmic surgical apparatus includes: a support provided with an electrical path, and a probe including a conductive material, the probe including a first section coupled to the support and a second section formed integrally with and connected to the first section, the entire surface of the second section being exposed to the outside of the support.

## Claims

### Claim 1

An ophthalmic surgical apparatus comprising:
a support provided with an electrical path; and
a probe formed of a conductive material,
wherein the probe includes a first section coupled to the support and a second section formed integrally with the first section and connected to the first section,
an entire surface of the second section is exposed to an outside of the support,
wherein a ratio of a diameter of the probe to a length of the second section of the probe ranges from 0.0116 to 0.035.

### Claim 2 (depends on 1)

The ophthalmic surgical apparatus of claim 1, wherein a ratio of the diameter of the probe to a diameter of the support ranges from 0.03 to 0.07.

### Claim 3 (depends on 1)

The ophthalmic surgical apparatus of claim 1, wherein the diameter of the probe ranges from 30 μm to 70 μm.

### Claim 4 (depends on 3)

The ophthalmic surgical apparatus of claim 3, wherein the probe has a linear shape.

### Claim 5 (depends on 1)

The ophthalmic surgical apparatus of claim 1, wherein the probe has at least one bent portion formed in a longitudinal direction.

### Claim 6 (depends on 1)

The ophthalmic surgical apparatus of claim 1, wherein the support has a cylindrical shape.

### Claim 7 (depends on 1)

The ophthalmic surgical apparatus of claim 1, wherein the first section of the probe is concentric with the support and is inserted into the support.

### Claim 8 (depends on 1)

The ophthalmic surgical apparatus of claim 1, further comprising:
a holder into which the support is inserted; and
a handpiece body coupled to the holder.

### Claim 9 (depends on 8)

The ophthalmic surgical apparatus of claim 8, wherein the holder is reduced in diameter further away from the handpiece body.

### Claim 10 (depends on 8)

The ophthalmic surgical apparatus of claim 8, wherein a longitudinal axis of the handpiece body and a longitudinal axis of the holder are arranged to form a certain angle.

### Claim 11 (depends on 10)

The ophthalmic surgical apparatus of claim 10, wherein the holder includes:
a holder body having an insertion portion formed for the support to be inserted into the insertion portion;
a button portion arranged on an opposite side of the insertion portion of the holder body; and
an elastic support arranged between the button portion and the support inserted inside the holder body.

### Claim 12 (depends on 11)

The ophthalmic surgical apparatus of claim 11, wherein the elastic support includes a coil-shaped spring.

### Claim 13 (depends on 11)

The ophthalmic surgical apparatus of claim 11, wherein the button portion penetrates the holder body and is reciprocally moved inside the holder body.

### Claim 14 (depends on 10)

The ophthalmic surgical apparatus of claim 10, wherein the holder includes:
a holder body having an insertion portion formed for insertion of the support into the insertion portion;
a button portion penetratingly coupled to the holder body;
a moving portion that is in contact with the button portion and is movable on the insertion portion; and
an elastic support arranged between the holder body and the moving portion, the elastic support elastically supporting the moving portion toward the holder body.