Automatically switching different aspiration levels and/or pumps to an ocular probe
First Claim
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1. A method for applying aspiration and irrigation to a phacoemulsification device, comprising:
- applying a low flow-rate aspiration from a first pump to an aspiration port of a probe;
applying a low flow-rate irrigation from a fluid source to an irrigation port of the probe while applying the low flow-rate aspiration;
transitioning from the low flow-rate aspiration to a high flow-rate aspiration from a second pump to the aspiration port;
transitioning from the low flow-rate irrigation to a high flow-rate irrigation while transitioning from the low flow-rate aspiration to the high flow-rate aspiration;
determining whether the high flow-rate aspiration exceeds a maximum irrigation rate; and
decreasing a flow-rate aspiration to the aspiration port of the probe to match an irrigation rate from the fluid source to the irrigation port of the probe responsive to determining that the high flow-rate aspiration exceeds the maximum irrigation rate.
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Abstract
Methods and apparatuses for automatically switching different aspiration levels to an ocular probe are disclosed herein. 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. Control feed back of the pumps may be varied according to set thresholds.
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Citations
8 Claims
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1. A method for applying aspiration and irrigation to a phacoemulsification device, comprising:
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applying a low flow-rate aspiration from a first pump to an aspiration port of a probe; applying a low flow-rate irrigation from a fluid source to an irrigation port of the probe while applying the low flow-rate aspiration; transitioning from the low flow-rate aspiration to a high flow-rate aspiration from a second pump to the aspiration port; transitioning from the low flow-rate irrigation to a high flow-rate irrigation while transitioning from the low flow-rate aspiration to the high flow-rate aspiration; determining whether the high flow-rate aspiration exceeds a maximum irrigation rate; and decreasing a flow-rate aspiration to the aspiration port of the probe to match an irrigation rate from the fluid source to the irrigation port of the probe responsive to determining that the high flow-rate aspiration exceeds the maximum irrigation rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification