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US 5,819,749 AGranted
Microvalve
AssigneeThe Regents of the University of California
InventorsAbraham P. Lee, Peter A. Krulevitch, M. Allen Northrup, Jimmy C. Trevino
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AssigneeThe Regents of the University of California
InventorsAbraham P. Lee, Peter A. Krulevitch, M. Allen Northrup, Jimmy C. Trevino
Estimating the term…
Micromachined thin film cantilever actuators having means for individually controlling the deflection of the cantilevers, valve members, and rudders for steering same through blood vessels, or positioning same within a blood vessel, for example. Such cantilever actuators include tactile sensor arrays mounted on a catheter or guide wire tip for navigation and tissues identification, shape-memory alloy film based catheter/guide wire steering mechanisms, and rudder-based steering devices that allow the selective actuation of rudders that use the flowing blood itself to help direct the catheter direction through the blood vessel. While particularly adapted for medical applications, these cantilever actuators can be used for steering through piping and tubing systems.
A microvalve having a body having a fluid inlet channel and a fluid outlet channel bonded to a cover plate having a fluid inlet and a fluid outlet, said body including a valve member positioned between said inlet and outlet channels of said body, and means for moving said valve member for allowing fluid flow from said inlet channel to said outlet channel.
A microvalve including a body, a valve member, and means for moving said valve member, wherein said means for moving said valve member includes means for electrostatic actuation thereof.
A microvalve comprising:
A microvalve comprising:
Dependencies are inferred from the claim text.