Color marks on catheter guide wire
AssigneeB. Braun-SSC AG
InventorGerhard Herlitze
Life of this patent
Estimating the term…
Abstract
For producing annular color marks on a spirally shaped catheter guide wire, a guide wire is selectively heated within a tempering range of 200.degree. C. to 360.degree. C. at the points provided for the color marks so that permanent temper colorations of the steel are left at said points. The advantage involved therewith is that color marks may be produced by neither removing nor applying material, and the contour of the guide wire is not changed. Further, no foreign material adhering to the guide wire may get into the body of the patient.
Claims11
A catheter guide wire comprising:
- an elongated flexible body defining a smooth outer surface;
- the surface having at least one indicia extending along a predetermined length thereof;
- the smooth surface continuing throughout the predetermined portion along which the indicia extends;
- and
- the indicia being disposed a predetermined distance from a distal end of the body and being spaced regularly along the wire for indicating the length of said wire;
- and
- wherein said indicia are temper colors of steel.
A catheter guide wire comprising:
- an elongated flexible body defining a smooth outer surface;
- the surface having at least one indicia extending along a predetermined length thereof;
- the smooth surface continuing throughout the predetermined portion along which the indicia extends;
- and
- the indicia being disposed a predetermined distance from a distal end of the body and being spaced regularly along the wire for indicating the length of said wire;
- and
- said indicia are formed at a temperature range of 200 to 300 degrees Celsius.
A catheter guide wire comprising:
- an elongated flexible body defining a smooth exterior surface;
- the surface having at least one indicia extending along a predetermined portion thereof;
- the smooth surface extending throughout the predetermined portion along which the indicia extends;
- the indicia being disposed a predetermined distance from a distal end of the body;
- the body comprising a strand of at least one spirally wound wire about a core;
- the spirally wound wire and the core chosen from the group comprising steel;
- the body having a thickness of 1 mm, a length of at least 30 cm and a hook-shaped end;
- and
- the indicia chosen from the temper colors of steel and being visible from each peripheral point of the guide wire.
Dependencies are inferred from the claim text.