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Navigation of remotely actuable medical device using control variable and length

a technology of remote actuation and medical devices, applied in medical devices, sensors, medical science, etc., can solve the problems of extensive calibration and difficult use of electromagnetic localization systems

Inactive Publication Date: 2006-02-02
STEREOTAXIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is about a way to know where a medical device is located in a person's body. This is done by using information about the control system and the length of the device. The invention can help with things like finding the device, returning it to a previous location, identifying the path it has taken, and creating a map of the surface or a physiological property."

Problems solved by technology

However, electromagnetic localization systems can be difficult to use where there is moving metal in or near the operating region, and can require extensive calibration.

Method used

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  • Navigation of remotely actuable medical device using control variable and length
  • Navigation of remotely actuable medical device using control variable and length
  • Navigation of remotely actuable medical device using control variable and length

Examples

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Embodiment Construction

[0012] The preferred embodiment of the present invention relates to methods of navigating a remotely actuable medical device in the body, and in the preferred embodiment for navigating a medical device by determining the location of the distal tip of a remotely navigable elongate medical device. In a preferred embodiment, the remotely controllable elongate medical device is a magnetically responsive medical device that orients with an applied magnetic field. However this invention is not so limited, and applies to any remotely navigable medical device that responds to one or more applied control variables. Examples of such devices include medical devices that employ mechanical, hydraulic, pneumatic, electrostrictive / or magnetostrictive elements, or combinations thereof, to control the configuration of at least a portion of the device. The device may be any type of elongate medical device including catheters, guidewires, and endoscopes. The operative length of the device, i.e., the l...

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Abstract

A method of navigating a medical device includes determining the location of a medical device at a point in an operating region in a subject's body, the medical device being responsive to at least one control variable to assume a desired configuration includes storing information representative of the at least one control variable being applied to the medical device at the point, and more preferably storing information representative of the at least one control variable and the device length.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation application of U.S. patent application Ser. No. 11 / 170,764, filed Jun. 29, 2005, which claims the benefit of U.S. Provisional Application No. 60 / 583,855, filed on Jun. 29, 2004. The disclosures of which are incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] This invention relates to the navigation of remotely actuable medical devices in an operating region positioned in a subject's body. [0003] There are a number of instances in which it is desirable to be able to determine the location of a medical device within an operating region positioned in a subject's body to facilitate navigation. Particularly in the accurate movement and positioning of a medical device it is desirable to know the current location and / or orientation of that device. Various localization systems have been developed for this purpose, including magnetic localization systems, which use electromagnetic signals transm...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M31/00A61B5/05
CPCA61B5/06A61B5/062A61B5/061
Inventor VISWANATHAN, RAJU R.BLUME, WALTER M.
Owner STEREOTAXIS
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