Magnetically navigable balloon catheters
First Claim
1. A magnetically guidable angioplasty catheter comprisingan elongate flexible member having a proximal end and a distal end, andan expandable element adjacent the distal end for selectively expanding the lumen of a blood vessel in which it is disposed, anda magnetically responsive element on the distal tip of the elongate flexible member, sized and spaced distally, relative to the expandable element to be able to orient the distal end of the elongate flexible member and the expandable element in a desired direction in an operating region inside a subject'"'"'s body, upon the application of a magnetic field from an external source magnet.
3 Assignments
0 Petitions
Accused Products
Abstract
A balloon catheter comprising an elongate tube having a proximal end and a distal end, and a lumen therebetween, and a balloon at the distal end of the tube, in fluid communication with the lumen. A magnetically responsive element at the distal end of the device sized and shaped to orient the distal end of the device in an operating region in a subject upon the application of a magnetic field from an external source magnet.
120 Citations
28 Claims
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1. A magnetically guidable angioplasty catheter comprising
an elongate flexible member having a proximal end and a distal end, and an expandable element adjacent the distal end for selectively expanding the lumen of a blood vessel in which it is disposed, and a magnetically responsive element on the distal tip of the elongate flexible member, sized and spaced distally, relative to the expandable element to be able to orient the distal end of the elongate flexible member and the expandable element in a desired direction in an operating region inside a subject'"'"'s body, upon the application of a magnetic field from an external source magnet.
- 4. A balloon catheter comprising an elongate tube having a proximal end and a distal end, and a lumen therebetween, and a balloon at the distal end of the elongate tube, in fluid communication with the lumen, and a magnetically responsive element at the distal tip of the balloon catheter sized, shaped, and spaced distally relative to the balloon to be able to orient the distal end of the balloon catheter in an operating region in a subject upon the application of a magnetic field from an external source magnet.
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25. A catheter for use in opening a vessel occlusion comprising
an elongate flexible tubular member having a proximal and distal end; -
a lumen extending between said proximal and said distal end; a core member that is smaller than the elongate flexible tubular member and having a proximal end connected to the distal end of the elongate flexible tubular member and extending distally beyond the distal end of the elongate flexible tubular member; an inflatable balloon having a first end secured to the distal end of the elongate flexible tubular member and a second end connected to the core member, the inflatable balloon surrounding the core member and being in fluid communication with the interior passage of the elongate flexible tubular member; at least one magnetically responsive element attached to a distal tip of said core member and spaced distally relative to the inflatable balloon, to orient the distal end of the core member in a desired direction inside a subject'"'"'s body upon application of a magnetic field from an external source magnet outside the subject'"'"'s body. - View Dependent Claims (26, 27, 28)
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Specification