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US 2007/0179438 A1Published application
Surge suppression method
AssigneeAlcon Inc.
InventorMichael Morgan
Life of this patent
Estimating the term…
Abstract
A method of variably restricting flow through an aspiration line so as to reduce post occlusion break surge. The method involves attaching a portion of the aspiration line at the proximal end of the handpiece to a device that can variable twist the aspiration line. Such twisting reducing the interior diameter of the aspiration line, thereby restricting flow through the line.
Claims5
A method of varying the flow through an aspiration line, comprising the steps of:
- a) providing a handpiece, the handpiece having an aspiration line, at least a portion of the aspiration line being flexible;
- b) monitoring a vacuum level in an aspiration line;
- c) varying a flow through the aspiration line in response to the monitored vacuum level by twisting at least the flexible portion of the aspiration line.
Dependencies are inferred from the claim text.