Intravascular guide wire and method for manufacture thereof

• US 7,214,201 B2
• Filed: 12/17/2004
• Issued: 05/08/2007
• Est. Priority Date: 06/18/1991
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Hackett, Steven S., Burmeister, Paul H., Slaikeu, Paul, Cappetta, Richard E.
• Primary Examiner(s): Hindenburg; Max F.
• Assistant Examiner(s): Szmal; Brian
• Application Number:
  US11/015,463
• Publication Number:
  US 20050107720A1
• Time in Patent Office: 872 Days
• Field of Search: 600/585, 604/528, 604/95.04
• US Class Current: 600/585
• CPC Class Codes: A61M 2025/09083 having a coil around a core
• CPC Class Codes: A61M 2025/09091 where a sheath surrounds the coil at the distal part
• CPC Class Codes: A61M 2025/09133 having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A guide wire, and a method for the manufacture thereof, having a core and a plastic jacket enclosing the core. The plastic jacket comprises a proximal portion formed of a first plastic material and a distal jacket portion formed of a second plastic material. The distal end of the proximal jacket portion and the proximal end of the distal jacket portion substantially abut each other and are of substantially equal outer diameters so as to form a smooth transition between the proximal and the distal jacket portions.

Claims

1. A guide wire comprising:

an elongated core member having a proximal region and a distal region;

a radiopaque coil disposed about the distal region of the core, the coil having a central portion; and

a plastic jacket disposed about the distal region of the core, the radiopaque coil, and between the central portion of the coil and the distal region of the core.

2. The guide wire of claim 1, wherein a proximal portion of the coil is attached to the distal region of the core.

3. The guide wire of claim 2, wherein a distal portion of the coil is attached to the distal region of the core.

4. The guide wire of claim 3, wherein the distal portion of the coil is attached to a tip disposed at a distal end of the distal region of the core.

5. The guide wire of claim 3, wherein the central portion of the coil is spaced from the distal region of the core.

6. The guide wire of claim 1, wherein at least a portion of the distal region of the core is flattened.