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Title: 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. 14 figs.

Inventors:
; ; ;
Publication Date:
Research Org.:
University of California
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672566
Patent Number(s):
US 5,771,902/A/
Application Number:
PAN: 8-533,426
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 550600; 420200; PA: EDB-98:121650; SN: 98002024881
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 30 Jun 1998
Country of Publication:
United States
Language:
English
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; NAVIGATION; BLOOD VESSELS; BLOOD FLOW; DESIGN; ACTUATORS; MINIATURIZATION; PIPES; TUBES

Citation Formats

Lee, A.P., Krulevitch, P.A., Northrup, M.A., and Trevino, J.C. Micromachined actuators/sensors for intratubular positioning/steering. United States: N. p., 1998. Web.
Lee, A.P., Krulevitch, P.A., Northrup, M.A., & Trevino, J.C. Micromachined actuators/sensors for intratubular positioning/steering. United States.
Lee, A.P., Krulevitch, P.A., Northrup, M.A., and Trevino, J.C. Tue . "Micromachined actuators/sensors for intratubular positioning/steering". United States.
@article{osti_672566,
title = {Micromachined actuators/sensors for intratubular positioning/steering},
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 = {Tue Jun 30 00:00:00 EDT 1998},
month = {Tue Jun 30 00:00:00 EDT 1998}
}