Systems and methods for ocular surgery

Abstract

Ocular surgery may be performed by a variety of systems, processes, and techniques. In certain implementations, a system and a process for ocular surgery may include the ability to draw ocular fluid into a channel of a hand-held pump system and separate the fluid into multiple compressible channels to create multiple flows. The system and the process may also include the ability to peristaltically pump the fluid through the compressible channels.

1 - 9 . (canceled) 
     
     
         10 . A method for pumping, the method comprising:
 drawing ocular fluid into a channel of a hand-held pump system;   separating the fluid into multiple compressible channels to create multiple flows; and   peristaltically pumping the fluid through the compressible channels.   
     
     
         11 . The method of  claim 10 , wherein peristaltically pumping the fluid comprises compressing each of the compressible channels in at least two locations to capture fluid. 
     
     
         12 . The method of  claim 11 , further comprising capturing fluid in the compressible channels in an out-of-phase manner. 
     
     
         13 . The method of  claim 11 , wherein peristaltically pumping the fluid comprises rotating a rotor having a helical scroll, the helical scroll comprising:
 a first portion having an increasing radius along a first length of the rotor in the direction of fluid flow, the radius increasing from a first end of the rotor to a maximum value; and   a second portion having a constant radius along a second length of the rotor, the helical scroll adapted to compress the compressible channels in a peristaltic manner to capture and move fluid along the channels.   
     
     
         14 . The method of  claim 13 , wherein peristaltically pumping the fluid further comprises compressing the compressible channels in at least two locations with the helical scroll to capture fluid. 
     
     
         15 . The method of  claim 14 , further comprising capturing fluid in the compressible channels in an out-of-phase manner with the helical scroll. 
     
     
         16 . The method of  claim 10 , further comprising expelling fluid through an aspiration port. 
     
     
         17 . The method of  claim 16 , further comprising combining the fluid from the compressible channels before expelling the fluid through the aspiration port.