Medical vascular guide wire and self-guilding type catheter

Details Medical vascular guide wire and self-guilding type catheter Medical vascular guide wire and self-guilding type catheter

1980-01-29

1982-08-24

Hirsch, Paul J.

Surgery

Truss

Pad

128348, 128DIG9, A61M 2500

Patent

active

043456022

ABSTRACT:
Disclosed is a medical vascular guide wire made of a synthetic resin hollow monofilament. The guide wire is comprised of a tip part, a flexible part having a smaller diameter than the other parts, a tapering part and a manipulating part, these four parts continuously forming in line, in that order, along the monofilament axis. At least the tip part and the manipulating part have X-ray impermeable material inserted in the respective hollows thereof. A self-guiding type catheter made of a synthetic resin, multi-hollow monofilament is also provided. The catheter is comprised of a tip part, a flexible part having a smaller diameter than the other parts, a tapering part and a manipulating part, these four parts continuously formed in line, in that order, along the monofilament axis: The catheter has at least two hollows extending at least from one end of the manipulating part to the tapering part or to the other end of the manipulating part or to a point in close proximity to said other end of the manipulating part. At least one of the hollows has an X-ray impermeable material inserted at least within the hollow in the manipulating part, and the other hollow or at least one of the other hollows form a lumen for permitting a liquid and/or a gas to pass therethrough.

REFERENCES:
patent: 2688329 (1954-09-01), Wallace
patent: 3435826 (1969-04-01), Fogarty
patent: 3500820 (1970-03-01), Almen
patent: 3687142 (1972-08-01), Leibinzohn
Br. J. Radiol, 42, pp. 227-229 (1969), Cornell et al., A Refinement in Catheter Angiography of Abdominal Aortic Aneurysms, The J-Tip Movable Core Guide Wire.
"Radiology", 88, (II), pp. 1127-1130 (1969), Judkins et al., Lumen-Following Safety J-Guide for Catheterization of Tortuous Vessels.
"Am. J. Roentgenol, Red, Therapy & Nuclear Med.," 97, (2), pp. 508-510 (1966), Nebesar et al., A Curved-Tip Guide Wire.
"Am. J. Roentgenol, Red, Therapy & Nuclear Med.," 97, (2), pp. 511-518 (1966), Rossi et al., The Floppy Wire, Aid in Catheterization.
"JAMA," vol. 229, No. 7, pp. 817-818 (1974), Blitt et al., Central Venous Catheterization Via The External Jugular Vein, A Technique Employing the J-Wire.

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