Dilatation catheter
First Claim
1. In a dilatation catheter comprising:
- a balloon provided with a front and a rear opening end and a thin wall made of synthetic resins;
an outer tube;
an inner tube which is disposed inside said outer tube and has its tip portion projected outward from said outer tube;
a hub portion; and
said balloon having said front and said rear opening end fixedly mounted in a water-tight manner on said inner tube and said outer tube to form a front and a rear fixed portion, respectively;
the improvement wherein;
a plurality of parallel-extending circumferential grooves are provided to a distal area of said inner tube, each of said circumferential grooves having a predetermined length, and said distal area having a certain length which extends from said front fixed portion and over said rear fixed portion in a direction of the hub portion.
1 Assignment
0 Petitions
Accused Products
Abstract
In the catheter comprising: a balloon 11 provided with a front and a rear opening end and a thin wall made of synthetic resins; an outer tube 21; an inner tube 31 which is disposed inside the outer tube 21 and has its tip portion projected outward from the outer tube 21; and, the balloon 11 having the front and the rear opening end fixedly mounted in a water-tight manner on the inner tube 31 and the outer tube 21 to form a front fixed portion 61 and a rear fixed portion 61'"'"', respectively;
a plurality of parallel-extending circumferential grooves 41 are provided to a distal area 32 of the inner tube 31, each of the circumferential grooves 41 having a predetermined length, and said distal area having a certain length which extends from said front fixed portion and over said rear fixed portion in a direction of the hub portion.
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Citations
10 Claims
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1. In a dilatation catheter comprising:
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a balloon provided with a front and a rear opening end and a thin wall made of synthetic resins; an outer tube; an inner tube which is disposed inside said outer tube and has its tip portion projected outward from said outer tube; a hub portion; and said balloon having said front and said rear opening end fixedly mounted in a water-tight manner on said inner tube and said outer tube to form a front and a rear fixed portion, respectively; the improvement wherein; a plurality of parallel-extending circumferential grooves are provided to a distal area of said inner tube, each of said circumferential grooves having a predetermined length, and said distal area having a certain length which extends from said front fixed portion and over said rear fixed portion in a direction of the hub portion. - View Dependent Claims (2, 3, 4, 5)
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6. A dilatation catheter comprising:
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a balloon provided with a front and a rear opening end and a thin wall made of polyethylene terephthalate resins; an outer tube; an inner tube which is disposed inside said outer tube and has its tip portion projected outward from said outer tube; a hub portion; said balloon having said front and said rear opening end fixedly mounted in a water-tight manner on said inner tube and said outer tube in a condition in which said balloon is axially stretched to form a front and a rear fixed portion, respectively; and a plurality of parallel-extending circumferential grooves provided to a distal area of said inner tube, each of said circumferential grooves having a predetermined length, and said distal area having a certain length which extends from said front fixed portion and over said rear fixed portion in a direction of the hub portion. - View Dependent Claims (7, 8, 9, 10)
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Specification