Guide wire and method of making same
First Claim
Patent Images
1. A guide wire, 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 non-conductive joint securing the distal end of the proximal core section to the proximal end of the distal core section;
wherein the non-conductive joint is not covered by a hypotube and is configured between the distal end of the proximal core section and the proximal end of the distal core section such that the distal end of the proximal core section and the proximal end of the distal core section do not overlie each other, and at least one of the distal end of the proximal core section and the proximal end of the distal core section has an undulated shape.
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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 intracorporeal 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.
61 Citations
14 Claims
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1. A guide wire, 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 non-conductive joint securing the distal end of the proximal core section to the proximal end of the distal core section;wherein the non-conductive joint is not covered by a hypotube and is configured between the distal end of the proximal core section and the proximal end of the distal core section such that the distal end of the proximal core section and the proximal end of the distal core section do not overlie each other, and at least one of the distal end of the proximal core section and the proximal end of the distal core section has an undulated shape. - 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 an undulating shape; and at least partially encasing at least one of the distal end of the proximal core section and the proximal end of the distal core section with a non-conductive material such that the non-conductive material is configured between the distal end of the proximal core section and the proximal end of the distal core section so that the distal end of the proximal core section and the proximal end of the distal core section do not overlie each other. - View Dependent Claims (7)
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8. A guide wire, 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 non-conductive material securing the distal end of the proximal core section to the proximal end of the distal core section; wherein the non-conductive material is not covered by a hypotube and is configured between the distal end of the proximal core section and the proximal end of the distal core section such that the distal end of the proximal core section and the proximal end of the distal core section do not overlie each other, and at least one of the distal end of the proximal core section and the proximal end of the distal core section has an undulated shape. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification