SYSTEMS AND METHODS FOR PHACOEMULSIFICATION WITH VACUUM BASED PUMPS

• US 20090048607A1
• Filed: 08/13/2007
• Published: 02/19/2009
• Est. Priority Date: 08/13/2007
• Status: Active Grant

• Current Assignee: Johnson & Johnson Surgical Vision, Inc. (Johnson & Johnson)
• Original Assignee: Advanced Medical Optics Incorporated (Johnson & Johnson)
• Inventors: Rockley, Paul
• Granted Patent: US 10,342,701 B2
• Time in Patent Office: Days
• US Class Current: 606/107
• CPC Class Codes: A61F 9/00745 using mechanical vibrations, e.g. ultrasonic
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2210/0612 Eyes

Abstract

The invention is generally directed to systems and methods for ophthalmic surgery, and more particularly to systems and methods for phacoemulsification using vacuum-based aspiration pumps. In accordance with one embodiment, a vacuum-based phacoemulsification system, having a handpiece, includes a subsystem to detect an occlusion occurring at the handpiece during operation.

Claims

1. An intraocular lens removal device comprising:

a handpiece;

an aspiration line having a proximal end and a distal end, wherein the proximal end is operatively coupled to the handpiece;

a vacuum-based aspiration pump operatively coupled to the distal end of the aspiration line;

a pressure transducer operatively coupled to the aspiration line in between the vacuum-based pump and the handpiece;

a valve coupled to the aspiration line between the pressure transducer and the vacuum-based pump; and

a computer controller operatively coupled to the valve and the pressure transducer, wherein the controller has a computer readable medium with a set of instructions that when executed, while the vacuum-based aspiration pump is in operation, will periodically cause the valve to close, read data from the pressure transducer, and then open the valve.

2. The device of claim 1, wherein the aspiration line is further operatively coupled to a volume-based pump.

3. The device of claim 2, wherein, while the vacuum-based aspiration pump is in operation, the computer controller is configured to reverse the volume-based pump upon detecting an occlusion occurring within the aspiration line.

4. The device of claim 2, further comprising a footcontroller operatively coupled to the computer controller, wherein the footcontroller enables an operator to switch between operating the volume based pump and the vacuum-based pump on demand during a lens removing procedure.