Automatically pulsing different aspiration levels to an ocular probe
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsRobert G. Raney, Michael Claus, James Gerg, Wayne S. Wong, David A. King, James W. Staggs, Fred Lee
Life of this patent
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Abstract
Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and applied to the probe in a pulsed manner.
Claims9
1-30. (canceled)
A method for applying aspiration to a probe device, comprising:
- applying a low flow-rate aspiration from a first pump to an aspiration port of a phacoemulsification device;
- detecting that the aspiration port is sufficiently occluded;
- and
- cycling a high flow-rate aspiration with a high-flow rate reflux from the first pump to the aspiration port.
A method for removing material from an eye, comprising:
- applying a first aspiration level to an aspiration port of a probe within an eye;
- applying a second aspiration level higher than the first aspiration level to the port;
- and
- cycling between the aspiration levels sufficiently for transient-induced effects of the aspiration level to help break-up the material for aspiration through the port.
38-45. (canceled)
Dependencies are inferred from the claim text.