Aspiration system for medical devices
First Claim
1. An aspiration tube for a medical aspiration system, comprising:
- a tube that has an inner diameter less than 0.05 inches.
1 Assignment
0 Petitions
Accused Products
Abstract
An aspiration tube that has a relatively high fluidic resistance. The tube is coupled to a medical device and a pump of an aspiration system. The tube can be designed to create a pressure drop that at least equals the maximum vacuum pressure of the pump. The fluidic resistance can be accomplished with a tube having an inner diameter less than 0.05 inches. The aspiration tube and an irrigation tube may be coupled to an anterior chamber of a cornea during a phaco procedure. The high resistance of the aspiration tube minimizes the instantaneous change of flowrate out of the cornea in the event an occlusion is cleared from the tube. The aspiration tube is sized so that even if a maximum pressure occurs, the resultant aspiration flowrate will be such that the cornea will not be damaged when an occlusion is cleared from the tube. An in-line filter may also be attached to the aspiration tube to filter out particles in the system.
-
Citations
36 Claims
-
1. An aspiration tube for a medical aspiration system, comprising:
a tube that has an inner diameter less than 0.05 inches. - View Dependent Claims (2, 3)
-
4. A medical aspiration system, comprising:
-
a pump; and
,a tube that is connected to said pump, said tube has an inner diameter less than 0.05 inches. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A medical cutting system, comprising:
-
a handpiece;
a cutting element attached to said handpiece;
a tube that is connected to said handpiece and has an inner diameter less than 0.05 inches; and
,a pump connected to said tube. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method for performing a medical procedure, comprising:
-
placing a medical device at a surgical site;
irrigating the surgical site with a fluid;
aspirating the fluid through a tube that has an inner diameter less than 0.05 inches;
creating a fragment that becomes occluded in the tube;
clearing the fragment to recreate flow through the tube, the tube has a fluidic resistance that minimizes a variation of the flow through the tube when the fragment is cleared. - View Dependent Claims (23, 24, 25, 26)
-
-
27. A medical aspiration system, comprising:
-
a pump;
a first tube coupled to said pump;
a filter connected to said first tube;
a second tube that is pressed into said filter. - View Dependent Claims (28, 29, 30, 31)
-
-
32. A medical cutting system, comprising:
-
a pump;
a first tube coupled to said pump;
a filter connected to said first tube;
a second tube that is pressed into said filter;
a handpiece coupled to said second tube;
a cutting element attached to said handpiece. - View Dependent Claims (33, 34, 35, 36)
-
Specification