Guide wire and method of producing a guide wire
First Claim
1. A guide wire for the percutaneous introduction of a balloon dilation catheter into a blood vessel comprising:
- an elongated flexible shaft with an outer diameter, a proximal portion and a distal portion;
a coil spring assembly surrounding and connected to the distal portion of the shaft, the coil spring assembly including a distal coil spring and a proximal coil spring;
the distal coil spring including a proximal end, a distal end, and a plurality of wire turns;
the proximal coil spring including a proximal end, a distal end, and a plurality of wire turns;
the wire turns of the proximal end of the distal coil spring being spaced apart to accommodate the wire turns of the distal end of the proximal coil spring;
the wire turns of the distal end of the proximal coil spring being spaced apart to accommodate the wire turns of the proximal end of the distal coil spring;
the distal end of the proximal coil spring turned into the proximal end of the distal coil spring so that a plurality of the wire turns of the distal end of the proximal coil spring are adjacent to a plurality of the wire turns of the proximal end of the distal coil spring;
a solder joint connecting the distal end of the proximal coil spring to the proximal end of the distal coil spring over a plurality of wire turns;
the solder joint having an inside diameter and an outside diameter; and
the inside diameter of the solder joint being larger than the outside diameter of the elongated flexible shaft.
2 Assignments
0 Petitions
Accused Products
Abstract
The guide wire serves in particular for the percutaneous introduction of a balloon dilation catheter into a blood vessel and has a flexible coil which surrounds a likewise flexible shaft and is produced from at least two coil springs, which are rotated together at a connection location over a plurality of turns and are soldered to one another. For the purpose of connection, at the end to be connected, the two coil springs are each slid onto a centering mold, rotated together and soldered. The centering mold is then removed. The connection location is tubular and internally hollow, so that the flexible shaft can be inserted subsequently.
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Citations
6 Claims
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1. A guide wire for the percutaneous introduction of a balloon dilation catheter into a blood vessel comprising:
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an elongated flexible shaft with an outer diameter, a proximal portion and a distal portion; a coil spring assembly surrounding and connected to the distal portion of the shaft, the coil spring assembly including a distal coil spring and a proximal coil spring; the distal coil spring including a proximal end, a distal end, and a plurality of wire turns; the proximal coil spring including a proximal end, a distal end, and a plurality of wire turns; the wire turns of the proximal end of the distal coil spring being spaced apart to accommodate the wire turns of the distal end of the proximal coil spring; the wire turns of the distal end of the proximal coil spring being spaced apart to accommodate the wire turns of the proximal end of the distal coil spring; the distal end of the proximal coil spring turned into the proximal end of the distal coil spring so that a plurality of the wire turns of the distal end of the proximal coil spring are adjacent to a plurality of the wire turns of the proximal end of the distal coil spring; a solder joint connecting the distal end of the proximal coil spring to the proximal end of the distal coil spring over a plurality of wire turns; the solder joint having an inside diameter and an outside diameter; and the inside diameter of the solder joint being larger than the outside diameter of the elongated flexible shaft. - View Dependent Claims (2, 3)
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4. A guide wire for the percutaneous introduction of a balloon dilation catheter into a blood vessel comprising:
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an elongated flexible shaft with an outer diameter, a proximal portion and a distal portion; a coil spring assembly surrounding and connected to the distal portion of the shaft, the coil spring assembly including a distal coil spring and a proximal coil spring; the distal coil spring including a proximal end, a distal end, and a plurality of wire turns; the proximal coil spring including a proximal end, a distal end, and a plurality of wire turns; the wire turns of the proximal end of the distal coil spring being spaced apart to accommodate the wire turns of the distal end of the proximal coil spring; the wire turns of the distal end of the proximal coil spring being spaced apart to accommodate the wire turns of the proximal end of the distal coil spring; the distal end of the proximal coil spring engaging the proximal end of the distal coil spring in a connection area so that at least one turn of the proximal coil spring is positioned between two turns of the distal coil spring; the proximal end of the distal coil spring being soldered to the distal end of the proximal coil spring in the connection area; the connection area having an inside diameter and an outside diameter; and the inside diameter of the connection area being larger than the outside diameter of the elongate flexible shaft. - View Dependent Claims (5, 6)
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Specification