| US 7,524,298 B2 | ||
| Device and method for treating hydrocephalus | ||
| Morteza Gharib, San Marino, Calif. (US); Derek Rinderknecht, Pasadena, Calif. (US); and Mostafa Gharib, Cologne (Germany) | ||
| Assigned to California Institute of Technology, Pasadena, Calif. (US) | ||
| Filed on May 24, 2005, as Appl. No. 11/137,852. | ||
| Claims priority of provisional application 60/574431, filed on May 25, 2004. | ||
| Prior Publication US 2005/0277865 A1, Dec. 15, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A61M 1/36 (2006.01); F04B 4/38 (2006.01) | ||
| U.S. Cl. 604—9 [417/474] | 15 Claims |
| 1. A method, comprising:
pumping in a human body, using a collector tube having a tip section, a discharge tube having an end section, and a tube shaped
element between said collector tube and said discharge tube, said pumping including pinching at least one portion of said
tube shaped element to pump fluid from said collector tube to said discharge;
sensing a pressure in a body cavity and producing an output indicative of the sensed pressure; and
controlling said pinching based on said output indicative of the sensed pressure, to control an amount of said pumping using
an automated controller to create plural pressure waves, which are reflected, said controlling creating said pressure waves
at a first frequency and duty cycle to sum said pressure waves and said reflected pressure waves by controlling said pinching
to create a new pressure wave at a time when another wave is reflected to a location of said pinching, to pump fluid within
the human body in a first direction from said collector tube to said discharge tube.
|