Micromachined actuators/sensors for intratubular positioning/steering
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.
- Inventors:
-
- Walnut Creek, CA
- Mountain View, CA
- Berkeley, CA
- French Camp, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 871652
- Patent Number(s):
- 5771902
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- micromachined; actuators; sensors; intratubular; positioning; steering; film; cantilever; means; individually; controlling; deflection; cantilevers; valve; rudders; blood; vessels; vessel; example; tactile; sensor; arrays; mounted; catheter; guide; wire; tip; navigation; tissues; identification; shape-memory; alloy; based; mechanisms; rudder-based; devices; allow; selective; actuation; flowing; help; direct; direction; particularly; adapted; medical; applications; piping; tubing; systems; blood vessel; cantilever actuators; guide wire; sensor array; memory alloy; medical applications; particularly adapted; sensor arrays; steering mechanisms; alloy film; blood vessels; individually controlling; film cantilever; /128/
Citation Formats
Lee, Abraham P, Krulevitch, Peter A, Northrup, M Allen, and Trevino, Jimmy C. Micromachined actuators/sensors for intratubular positioning/steering. United States: N. p., 1998.
Web.
Lee, Abraham P, Krulevitch, Peter A, Northrup, M Allen, & Trevino, Jimmy C. Micromachined actuators/sensors for intratubular positioning/steering. United States.
Lee, Abraham P, Krulevitch, Peter A, Northrup, M Allen, and Trevino, Jimmy C. Thu .
"Micromachined actuators/sensors for intratubular positioning/steering". United States. https://www.osti.gov/servlets/purl/871652.
@article{osti_871652,
title = {Micromachined actuators/sensors for intratubular positioning/steering},
author = {Lee, Abraham P and Krulevitch, Peter A and Northrup, M Allen and Trevino, Jimmy 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}
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