Probe, especially for the recanalization of occlusions, and catheter arrangement with such a probe
First Claim
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1. A probe for the recanalization of vascular occlusions, said probe comprising:
- a) a length of wire having a proximal end and distal end section which has in sequence a conically tapered portion and a flat portion;
b) a spiral spring member which surrounds the distal end section of the length of wire and whose spiral diameter is at least substantially equivalent to the diameter of the length of wire proximal to the conically tapered portion of said distal end section; and
c) a distal tip attached to the end of the flat portion of said distal end section and to the end of said spring member, said tip having a maximum diameter substantially larger than the maximum spiral diameter of the spring member.
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Abstract
The probe is provided at its distal end with an olive-shaped tip which is solidly joined to a shaft. The shaft is provided with a wire made of stainless steel as well as a spring. The maximum diameter of the tip is preferably approx. 1 mm. The guide catheter is suitable especially for recanalization of coronary and completely obstructed occlusions. The probe is preferably applied together with a baloon catheter itself known.
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Citations
9 Claims
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1. A probe for the recanalization of vascular occlusions, said probe comprising:
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a) a length of wire having a proximal end and distal end section which has in sequence a conically tapered portion and a flat portion; b) a spiral spring member which surrounds the distal end section of the length of wire and whose spiral diameter is at least substantially equivalent to the diameter of the length of wire proximal to the conically tapered portion of said distal end section; and c) a distal tip attached to the end of the flat portion of said distal end section and to the end of said spring member, said tip having a maximum diameter substantially larger than the maximum spiral diameter of the spring member. - View Dependent Claims (2, 3, 4)
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5. A catheter device for penetrating a vascular occlusion and performing an angioplasty procedure therein, said device comprising a balloon catheter having a distal aperture and a probe whose distal end is disposed distally of the distal aperture of the catheter, said probe comprising:
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a) a length of wire having a proximal end and distal end section which has in sequence a conically tapered portion and a flat portion; b) a spiral spring member which surrounds the distal end section of the length of wire and whose spiral diameter is at least substantially equivalent to the diameter of the length of wire proximal to the conically tapered portion of said distal end section; and c) a distal tip attached to the end of the flat portion of said distal end section and to the end of said spring member, said tip having a maximum diameter substantially larger than the maximum spiral diameter of the spring member. - View Dependent Claims (6, 7, 8, 9)
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Specification