# US 10,478,337 B2 · Multiple frequency phacoemulsification needle driver

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,478,337 B2
- Document ID: US10478337B2
- Status: Granted
- Kind: B2
- Application number: 15/400,898
- Filed: 2017-01-06
- Published: 2017-04-27
- Granted: 2019-11-19
- Earliest claimed: 2008-11-07
- Assignees: Johnson & Johnson Surgical Vision, Inc.
- Applicants: Abbott Medical Optics Inc.
- Inventors: Rob Raney; David A. King; David A. Greenbaum
- Web page: https://patentgrep.com/patent/US10478337B2

## CPC

- A61F 9/00745: {using mechanical vibrations, e.g. ultrasonic}
- A61B 17/320068: {using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745)}
- A61B 18/1206: {Generators therefor}
- A61B 2017/00146: {with multiple frequencies}
- A61B 2017/0015: {applied simultaneously}
- A61B 2017/00199: {with a console, e.g. a control panel with a display}
- A61B 2017/00973: {pedal-operated}
- A61B 2018/1273: {including multiple generators in one device}
- A61B 2217/005: with suction drainage system
- A61B 2217/007: with irrigation system
- 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 system for performing an ocular surgical procedure is provided. The system includes a multiple frequency signal source, a configurable tuned output filter connected to the multiple frequency signal source, and a multiple frequency ultrasonic handpiece. The multiple frequency signal source operates at a first frequency and is configured to drive the configurable filter and the multiple frequency ultrasonic handpiece at the first frequency. The multiple frequency signal source operates at a second frequency and is configured to drive the configurable filter and the multiple frequency ultrasonic handpiece at the second frequency, and the design addresses third harmonic frequency issues for the multiple frequency ultrasonic handpiece. Switchable passive components, such as inductors, resistors, and/or capacitors may be employed in the configurable tuned output circuit, or alternately multiple similar circuits may be employed. Alternately, a multi-tap transformer may be provided.

## Claims

### Claim 1

A system for operating a phacoemulsification handpiece at multiple operating frequencies, comprising:
a first sine wave signal source configured to deliver a first sinusoidal signal at a first frequency;
a second sine wave signal source configured to deliver a second sinusoidal signal at a second frequency differing from the first frequency; and
a multi-tap transformer configured to receive the first sinusoidal signal at a first input tap and the second sinusoidal signal at a second input tap;
wherein an output tap of the multi-tap transformer connects to the phacoemulsification handpiece and drives the phacoemulsification handpiece at the first frequency, the second frequency, or a combination of the first frequency and the second frequency.

### Claim 2 (depends on 1)

The system of claim 1, further comprising a tuned circuit having an input connected to the first input tap and second input tap and an output connected to the output tap.

### Claim 3 (depends on 1)

The system of claim 1, further comprising a configurable tuned output filter having an input connected to the first input tap and the second input tap and an output connected to the output tap, wherein the configurable tuned output filter is configured to minimize or eliminate third harmonic or higher frequency issues for the phacoemulsification handpiece.

### Claim 4 (depends on 3)

The system of claim 3, wherein the configurable tuned output filter comprises a switchable passive component.