Coaxial tubing system for phacoemulsification handpieces
AssigneeArt, Limited
InventorTakayuki Akahoshi
Life of this patent
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Abstract
An irrigation and aspiration tubing system for use with surgical handpieces and irrigation fluid supplies has a first flexible irrigation tube for transporting irrigation fluid to the handpiece and a second flexible aspiration tube disposed within the first tube. The inner diameter of the first tube is selected to provide a cross-sectional area available for fluid flow in excess of the cross-sectional area of a standard surgical irrigation tubes. The system also includes at least one adaptor to allow the tubing to be attached to known surgical handpieces. Preferably, a second adaptor is also provided allowing attachment to sources of irrigating fluid and aspiration vacuum. The system finds particular utility with phacoemulsification instruments used for opththalmic surgery.
Claims13
An improved fluid flow tubing system for use with a surgical handpiece, said handpiece of the type having at least two separate fluid flow paths, said system comprising:
- a first flexible tube for connecting to a first of said flow paths;
- a second flexible tube for connecting to a second of said flow paths,
- said second tube disposed within said first tube;
- and
- means for connecting said first and second tubes to said handpiece.
An improved irrigation and aspiration tubing system for use with a phacoemulsification surgical handpiece, said handpiece of the type having a first flow path for supplying irrigating fluid to a surgical site and a second flow path for aspirating fluid and particles from said site, said system comprising:
- a first flexible tube for transporting said irrigating fluid to said handpiece;
- a second flexible tube forming a path for aspirated fluid and particles,
- said second tube disposed within said first tube;
- means for connecting said first tube to said first flow path;
- and
- means for connecting said second tube to said second flow path.
An improved irrigation and aspiration tubing system for use with a phacoemulsification surgical handpiece, said system of the type having an irrigating fluid supply source and an aspiration vacuum supply source, said handpiece of the type having a first flow path for supplying irrigating fluid to a surgical site and a second flow path for aspirating fluid and particles from said site, said system comprising:
- a first flexible tube having first and second ends for transporting said irrigating fluid from said irrigating fluid supply to said handpiece;
- a second flexible tube having first and second ends forming a path for aspirated fluid and particles from said handpiece to said vacuum supply source,
- said second tube disposed within said first tube;
- means for connecting said first end of said first tube to said first flow path;
- means for connecting said first end of said second tube to said second flow path;
- means for connecting said second end of said first tube to said irrigating fluid supply;
- and
- means for connecting said second end of said second tube to said vacuum supply source.
Dependencies are inferred from the claim text.