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Title: Thermal manipulator of medical catheters

Abstract

This invention consists of a maneuverable medical catheter comprising a flexible tube having a functional tip. The catheter is connected to a control source. The functional tip of the catheter carries a plurality of temperature activated elements arranged in parallel and disposed about the functional tip and held in spaced relation at each end. These elements expand when they are heated. A plurality of fiber optic bundles, each bundle having a proximal end attached to the control source and a distal end attached to one of the elements carry light into the elements where the light is absorbed as heat. By varying the optic fiber that is carrying the light and the intensity of the light, the bending of the elements can be controlled and thus the catheter steered. In an alternate embodiment, the catheter carries a medical instrument for gathering a sample of tissue. The instrument may also be deployed and operated by thermal expansion and contraction of its moving parts.

Inventors:
Publication Date:
Research Org.:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6953925
Patent Number(s):
PATENTS-US-A7663496
Application Number:
ON: DE93002006; PPN: US 7-663496
Assignee:
Dept. of Energy TIC; EDB-92-181206
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent Application
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; SURGICAL MATERIALS; DESIGN; BLOOD VESSELS; FIBER OPTICS; INVENTIONS; NAVIGATION; THERMAL EXPANSION; BODY; CARDIOVASCULAR SYSTEM; EXPANSION; MATERIALS; MEDICAL SUPPLIES; ORGANS; 550600* - Medicine

Citation Formats

Chastagner, P. Thermal manipulator of medical catheters. United States: N. p., 1991. Web.
Chastagner, P. Thermal manipulator of medical catheters. United States.
Chastagner, P. Mon . "Thermal manipulator of medical catheters". United States.
@article{osti_6953925,
title = {Thermal manipulator of medical catheters},
author = {Chastagner, P.},
abstractNote = {This invention consists of a maneuverable medical catheter comprising a flexible tube having a functional tip. The catheter is connected to a control source. The functional tip of the catheter carries a plurality of temperature activated elements arranged in parallel and disposed about the functional tip and held in spaced relation at each end. These elements expand when they are heated. A plurality of fiber optic bundles, each bundle having a proximal end attached to the control source and a distal end attached to one of the elements carry light into the elements where the light is absorbed as heat. By varying the optic fiber that is carrying the light and the intensity of the light, the bending of the elements can be controlled and thus the catheter steered. In an alternate embodiment, the catheter carries a medical instrument for gathering a sample of tissue. The instrument may also be deployed and operated by thermal expansion and contraction of its moving parts.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {3}
}