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Title: Microvalve

Abstract

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. 14 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
675833
Patent Number(s):
5,819,749
Application Number:
PAN: 8-898,032
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 550600; 420200; PA: EDB-99:003716; SN: 98002028025
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 13 Oct 1998
Country of Publication:
United States
Language:
English
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; BLOOD VESSELS; BLOOD FLOW; DESIGN; THIN FILMS; ACTUATORS; PIPES; TUBES

Citation Formats

Lee, A.P., Krulevitch, P.A., Northrup, M.A., and Trevino, J.C. Microvalve. United States: N. p., 1998. Web.
Lee, A.P., Krulevitch, P.A., Northrup, M.A., & Trevino, J.C. Microvalve. United States.
Lee, A.P., Krulevitch, P.A., Northrup, M.A., and Trevino, J.C. Tue . "Microvalve". United States.
@article{osti_675833,
title = {Microvalve},
author = {Lee, A.P. and Krulevitch, P.A. and Northrup, M.A. and Trevino, J.C.},
abstractNote = {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. 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}