Magnetic field shape-adjustable medical device and method of using the same
First Claim
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1. A system comprising one or a plurality of combinations of magnetically permanent or permeable elements attached to an elongated structural element, said combinations providing means for bending the elongated structural element upon application of a magnetic field.
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Abstract
A medical catheter or guide wire comprising one or a plurality of combinations of magnetically permanent or permeable elements attached to an elongated structural element, the medical device being controllably bendable at the element combination(s) upon application of a magnetic field generally in the direction of the local element long axis.
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Citations
32 Claims
- 1. A system comprising one or a plurality of combinations of magnetically permanent or permeable elements attached to an elongated structural element, said combinations providing means for bending the elongated structural element upon application of a magnetic field.
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18. A method for bending a medical device comprising one or a plurality of combinations of magnetically permanent or permeable elements attached to a structural element, comprising:
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(a) selecting a combination of magnetically permanent or permeable elements; and
(b) applying an externally generated magnetic field of known magnitude and orientation to the combination of magnetically permanent or permeable elements selected in (a). - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A method of designing a medical device comprising one or a plurality of combinations of magnetically permanent or permeable elements attached to a structural element, bendable upon application of a magnetic field, comprising:
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(a) calculating parameters of the magnetically permanent or permeable elements, including shape, orientation, separation, and material composition;
(b) calculating parameters of the structural element, including shape, material composition, and dimensions whereby a given amount of medical device bending is achieved upon application of a magnetic field of known magnitude and direction. - View Dependent Claims (32)
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26. A elongate medical device having a distal end shapable by the application of a magnetic field to facilitate navigation of the distal end of the device in an operating region in a subject, the medical device comprising:
at least one section comprising a plurality of magnetically responsive elements at the distal end of the device, the elements secured together along one side in a longitudinally spaced relationship by a flexible element, the elements being magnetically responsive to attract each other upon the application of a magnetic field to assume longitudinally curved configuration, curving opposite the flexible element. - View Dependent Claims (27, 28, 29, 30, 31)
Specification