MRI compatible guide wire
First Claim
Patent Images
1. A guidewire, comprising:
- a core having a proximal core section with proximal and distal ends and a distal core section with proximal and distal ends; and
a polymer joint securing the distal end of the proximal core section to the proximal end of the distal core section;
wherein the polymer joint is not covered by a hypotube.
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Abstract
An improved intracorporeal device such as a guide wire or other guiding member for use within a patient'"'"'s body that is at least in part visible under magnetic resonance imaging (MRI) but is not detrimentally affected by the imaging is disclosed. The intercorporeal device has a non-conductive proximal core section, an essentially non-magnetic metallic distal core section that is preferably more flexible than the proximal core section, and that has an MRI visible member or coil in the distal section.
123 Citations
13 Claims
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1. A guidewire, comprising:
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a core having a proximal core section with proximal and distal ends and a distal core section with proximal and distal ends; and
a polymer joint securing the distal end of the proximal core section to the proximal end of the distal core section;
wherein the polymer joint is not covered by a hypotube. - View Dependent Claims (2, 3, 4, 5)
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6. A process for joining two guide wire core materials without using a hypotube, comprising:
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providing a proximal core section having a distal end and a distal core section having a proximal end;
grinding at least one of the distal end of the proximal core section and the proximal end of the distal core section;
shaping at least one of the distal end of the proximal core section and the proximal end of the distal core section into a geometric pattern; and
encasing the distal end of the proximal core section and the proximal end of the distal core section with a polymer. - View Dependent Claims (7, 8, 9)
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10. A process for joining two wire core materials, comprising:
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providing a proximal core section having a distal end and a distal core section having a proximal end;
shaping at least one of the distal end of the proximal core section and the proximal end of the distal core section into an undulated shape; and
encasing the distal end of the proximal core section and the proximal end of the distal core section with a polymer. - View Dependent Claims (11, 12, 13)
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Specification