Catheter with double step-down bore
AssigneeCordis Corporation
InventorJacqueline A. Shwab
Life of this patent
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Abstract
A catheter defines a flexible tubular body and a tubular tip carrier at the distal end of the body. At last the majority of the tubular body defines a first bore portion having a first meter. The catheter defines side holes adjacent the distal end, with the catheter defining a second bore portion distal to the side holes having a second diameter which is less than the first diameter. The catheter also defines an intermediate, tubular portion between the first and second bore portions, the intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter. The intermediate portion also defines a thicker catheter wall than the catheter wall defining the first bore portion.
Claims15
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter;
- said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to essentially all of said side holes present and having a second diameter which is less than the first diameter;
- said catheter also defining an intermediate, tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter, said tubular body carrying a tubular reinforcing sleeve made of metal strands embedded in the wall of said tubular body, said catheter defining a tubular, intermediate portion distal to said tubular body, said tubular intermediate portion having side holes, said catheter defining a second bore portion distal to said intermediate portion and side holes, said second bore portion having a second diameter which is less than the first diameter, the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof, said intermediate tubular portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining said first bore portion, said flexible tubular body being joined to the tubular tip at a junction area between the first bore portion and the intermediate portion.
A catheter which defines a flexible, tubular body and a tubular tip carried at the distal end of said body, at least the majority of said tubular body defining a first bore portion having a first diameter;
- said catheter defining side holes adjacent said distal end, said catheter defining a second bore portion distal to said side holes having a second diameter which is less than the first diameter, the catheter part defining the second bore portion comprising a pigtail tip, the bore of said catheter extending through the distal end thereof;
- said catheter also defining an intermediate tubular portion between the first and second bore portions, said intermediate portion having a third bore diameter that is less than the first diameter and greater than the second diameter, said intermediate portion defining a thicker catheter wall than the catheter wall defining the first bore portion.
Dependencies are inferred from the claim text.