Claims
- 1. A guidewire comprising:
a body portion having a first diameter and comprising a multiple filament group of individual wire coils wound adjacent to one another; a distal end having a second diameter that is less than the first diameter; a taper portion having a taper from the first diameter to the second diameter; and a coating disposed over the distal end, taper portion, and at least a part of the body portion.
- 2. The guidewire device according to claim 1, wherein the coating has a continuous diameter.
- 3. The guidewire device according to claim 1, wherein the coating defines a taper adjacent the taper portion.
- 4. The guidewire device according to claim 1, wherein the coating comprises an elastic material.
- 5. The guidewire device according to claim 1, wherein the coating comprises a low-friction coating.
- 6. The guidewire device according to claim 1, wherein the coating comprises a hydrophilic material.
- 7. The guidewire device according to claim 1, wherein the distal end defines a lumen and a lumen opening, and wherein the coating terminates adjacent the opening.
- 8. The guidewire device according to claim 1, wherein the taper portion comprises individual wire coils having different diameters.
- 9. The guidewire device according to claim 1, wherein the taper portion comprises a multiple-filament group of individual wire coils wound at a pitch angle different than a pitch angle of a multiple-filament group of individual wire coils of the body portion.
- 10. A method of making a guidewire, comprising:
providing a multiple-filament group of individual wires; winding the group around a longitudinal axis to form a body portion having a first diameter and one or more sequences of turns; and covering the body portion with a coating.
- 11. The guidewire method according to claim 10, wherein the covering step comprises dipping the body portion in a liquid coating solution.
- 12. The guidewire method according to claim 10, further comprising forming a distal end having a second diameter that is less than the first diameter, and forming a taper portion having a taper from the first diameter to the second diameter.
- 13. The guidewire method according to claim 12, wherein the step of forming a taper portion comprises grinding individual wires of the taper portion.
- 14. A method of making a coated guidewire, comprising:
providing a guidewire comprising a body portion having a first diameter and comprising a multiple-filament group of individual wire coils wound adjacent to one another, a distal end having a second diameter that is less than the first diameter, and a taper portion having a taper from the first diameter to the second diameter; and covering the distal end with a coating.
- 15. The guidewire method of claim 14, further comprising covering the taper portion with the coating.
- 16. The guidewire method of claim 15, further comprising covering a part of the body portion with the coating.
- 17. The guidewire method of claim 15, wherein the coating has a continuous diameter.
- 18. The guidewire method of claim 15, wherein the coating defines a taper adjacent the taper portion.
Priority Claims (4)
Number |
Date |
Country |
Kind |
00610012.7 |
Jan 2000 |
EP |
|
00610013.5 |
Jan 2000 |
EP |
|
00610014.3 |
Jan 2000 |
EP |
|
00610015.0 |
Jan 2000 |
EP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation-in-part of application Ser. No. 09/770,417, filed Jan. 26, 2001, which is hereby incorporated by reference herein.
[0002] This application claims priority of the following European applications:
1Serial No. 00610012.7filed 28 Jan. 2000Serial No. 00610013.5filed 28 Jan. 2000Serial No. 00610014.3filed 28 Jan. 2000Serial No. 00610015.0filed 28 Jan. 2000
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09770417 |
Jan 2001 |
US |
Child |
10615510 |
Jul 2003 |
US |