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US 9,433,723 B2Granted
System and method for providing pressurized infusion
AssigneeAbbott Medical Optics Inc.
InventorsMark E Steen, Fred Lee, James Gerg
Life of this patent
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Abstract
The present invention relates generally to providing pressurized infusion of liquids and, more particularly, is directed to providing a stable and pressurized flow of irrigation fluid to the eye during surgery.
Claims19
A method of providing pressurized fluid to an eye, comprising:
- providing at least one pressurized gas source communicatively coupled to at least one irrigation fluid source to deliver irrigation fluid;
- allowing for an adjusting of a height of the at least one irrigation fluid source;
- allowing for an adjusting of the pressure of the at least one pressurized gas source;
- receiving an input of a first assumed height of the at least one irrigation fluid source;
- calculating a second assumed height of the at least one irrigation fluid source based on the first assumed height and a measured pressure at the first assumed height;
- dynamically determining a target height adjustment of the at least one irrigation fluid source based on a first target pressure and the second assumed height of the irrigation fluid source;
- adjusting the height of the at least one irrigation fluid source by the target height adjustment to a target height;
- adjusting the pressure of the at least one pressurized gas source based on the first target pressure and the target height of the at least one irrigation fluid source to adjust the delivery of the irrigation fluid;
- and
- causing a dispensing of the irrigation fluid from the at least one irrigation fluid source at the first target pressure.
7 more elements
A system of providing pressurized fluid to an eye, comprising:
- at least one pole to suspend at least one fluid irrigation source, wherein a height of the at least one pole is adjustable;
- at least one pressurized gas source communicatively coupled to the at least one irrigation fluid source to deliver irrigation fluid, wherein the at least one pressurized gas source is adjustable;
- a controller configured to:
- receive an input of a first assumed height of the at least one irrigation fluid source;
- calculate a second assumed height of the at least one irrigation fluid source based on the first assumed height and a measured pressure at the first assumed height;
- dynamically determine a target height adjustment of the at least one irrigation fluid source based on a first target pressure and the second assumed height of the irrigation fluid source,
- adjust the height of the at least one irrigation fluid source by the target height adjustment to a target height,
- adjust the pressure of the at least one pressurized gas source based on the first target pressure and the target height of the at least one irrigation fluid source to adjust the delivery of the irrigation fluid;
- and
- a handpiece for dispensing irrigation fluid from the at least one irrigation fluid source at the first target pressure.
7 more elements
Dependencies are inferred from the claim text.