# US 2021/0330494 A1 · Using an intraocular stroboscope for phacoemulsifier surgical device visualization

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- Number: US 2021/0330494 A1
- Document ID: US20210330494A1
- Status: Published application
- Kind: A1
- Application number: 16/859,034
- Filed: 2020-04-27
- Published: 2021-10-28
- Earliest claimed: 2020-04-27
- Assignees: Johnson & Johnson Surgical Vision, Inc.
- Applicants: Johnson & Johnson Surgical Vision, Inc.
- Inventors: Vadim Gliner; Assaf Govari
- Web page: https://patentgrep.com/patent/US20210330494A1

## CPC

- A61F 9/00745: {using mechanical vibrations, e.g. ultrasonic}
- A61F 9/00763: {with rotating or reciprocating cutting elements, e.g. concentric cutting needles (atherectomy cutting instruments A61B17/3207; endoscopic cutting instruments A61B17/320016)}
- 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)

## Abstract

A device for intraocular surgery includes a handle, a needle, and a stroboscopic illumination device. The handle includes a vibrator that is configured to vibrate at a first frequency in response to a signal received from an oscillator. The needle is mechanically coupled with the vibrator and is configured to be inserted into an eye and to apply vibrations of the vibrator to the eye for emulsifying tissue. The stroboscopic illumination device is coupled with the needle and is configured to output stroboscopic light pulses at a second frequency that is set based on the first frequency, for visualizing at least a portion of the eye during emulsification by the needle.

## Claims

### Claim 1

A device for intraocular surgery, comprising:
a handle, comprising a vibrator that is configured to vibrate at a first frequency in response to a signal received from an oscillator; and
a needle, which is mechanically coupled to the vibrator and is configured to be inserted into an eye and to apply vibrations of the vibrator to the eye for emulsifying tissue; and
a stroboscopic illumination device, which is coupled with the needle and is configured to output stroboscopic light pulses at a second frequency that is set based on the first frequency, for visualizing at least a portion of the eye during emulsification by the needle.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the vibrator comprises a piezo-electric element.

### Claim 3 (depends on 1)

The device according to claim 1, wherein the stroboscopic illumination device, which is coupled with the needle for insertion into the eye, comprises an optical fiber configured to receive and output the stroboscopic light pulses.

### Claim 4 (depends on 3)

The device according to claim 3, wherein the handle comprises an optocoupler, which is configured to generate the stroboscopic light pulses and couple the stroboscopic light pulses with the optical fiber.

### Claim 5 (depends on 1)

The device according to claim 1, wherein the stroboscopic illumination device, which is coupled with the needle for insertion into the eye, comprises a light source configured to generate the stroboscopic light pulses in response to an electrical signal.

### Claim 6

A method for intraocular surgery, comprising:
inserting a needle into an eye of a patient;
applying vibrations to the eye by vibrating the needle at a first frequency, so as to emulsify tissue in the eye; and
using a stroboscopic illumination device coupled with the needle, generating stroboscopic light pulses at a second frequency that is set based on the first frequency, thereby visualizing at least a portion of the needle.

### Claim 7 (depends on 6)

The method according to claim 6, wherein applying the vibrations comprises operating a piezo-electric element.

### Claim 8 (depends on 6)

The method according to claim 6, wherein generating the stroboscopic light pulses comprises transmitting the stroboscopic light pulses in an optical fiber and emitting the stroboscopic light pulses from a distal end of the optical fiber.

### Claim 9 (depends on 8)

The method according to claim 8, wherein generating the stroboscopic light pulses comprises generating the stroboscopic light pulses using an optocoupler and coupling the stroboscopic light pulses from the optocoupler to the optical fiber.

### Claim 10 (depends on 6)

The method according to claim 6, wherein generating the stroboscopic light pulses comprises generating the stroboscopic light pulses in response to an electrical signal, by a light source coupled with the needle.