Surgery – Truss – Pad
Patent
1992-02-20
1993-08-10
Hindenburg, Max
Surgery
Truss
Pad
128657, A61B 500
Patent
active
052340031
ABSTRACT:
A wire guide having a generally increasing flexible tip that is resistant to fracture. The flexible tip wire guide comprises a cylindrical wire member having a substantially uniform outer diameter main portion and a distal portion with a tapered outer surface region for gradually increasing the flexibility of the tip and a proximal concave outer surface region that extends tangentially and proximally from the tapered outer surface for increasing the fracture resistance of the decreasing outer diameter distal portion. A flexible wire coil is inserted over the distal wire portion and secured to the proximal end of the distal wire portion and the distal end of the main portion using silver solder with a uniform outer diameter for minimizing potential trauma to vessel walls. The outer diameter of the flexible wire coil is substantially equivalent to the outer diameter of the main portion of the wire guide to likewise minimize trauma to vessel walls. A cylindrical outer surface extends distally from the tapered outer surface of the distal wire portion to add uniform flexibility to the flexible tip for use, e.g., in a J-tip configuration. The distal end of the flexible wire coil is attached to the distal end of the distal wire portion with silver solder or a weld that is hemispherically shaped for minimizing trauma during insertion through the vessel.
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Cook Incorporated
Godlewski Richard J.
Hindenburg Max
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