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US 2003/0167051 A1Published application
Intravascular catheter shaft
OwnerPu Zhouinventor
Life of this patent
Estimating the term…
Abstract
A catheter shaft includes a polyoxymethylene-polyurethane elongate shaft including a proximal portion having about 80 to about 95 weight % polyoxymethylene and about 5 to about 20 weight % polyurethane, an intermediate portion having about 20 to about 50 weight % polyoxymethylene and about 50 to about 80 weight % polyurethane, and a distal portion having about 5 to about 20 weight % polyoxymethylene and about 80 to about 95 weight % polyurethane. The intermediate portion is disposed between the proximal portion and the distal portion.
Claims19
A catheter shaft comprising:
- a polyoxymethylene-polyurethane elongate shaft including a proximal portion having about 80 to about 95 weight % polyoxymethylene and about 5 to about 20 weight % polyurethane, an intermediate portion having about 20 to about 50 weight % polyoxymethylene and about 50 to about 80 weight % polyurethane, and a distal portion having about 5 to about 20 weight % polyoxymethylene and about 80 to about 95 weight % polyurethane, wherein the intermediate portion is disposed between the proximal portion and the distal portion.
A catheter shaft comprising:
- a polyoxymethylene-polyurethane elongate shaft including a proximal portion having a flexural modulus of about 380 to about 210 ksi, an intermediate portion having a flexural modulus of about 30 to about 90 ksi, and a distal portion having a flexural modulus of less than about 30 ksi, wherein the intermediate portion is disposed between the proximal portion and the distal portion.
A catheter comprising:
- an inner tubular member having a proximal end, a distal end and a longitudinal surface;
- a support member disposed over a substantial portion of the longitudinal surface, the support member having a distal end terminated proximal of the inner tubular member distal end;
- and
- a polyoxymethylene-polyurethane elongate shaft disposed over the inner tubular member, the polyoxymethylene-polyurethane elongate shaft including a proximal portion having about 80 to about 95 weight % polyoxymethylene and about 5 to about 20 weight % polyurethane, an intermediate portion having about 20 to about 50 weight % polyoxymethylene and about 50 to about 80 weight % polyurethane, and a distal portion having about 5 to about 20 weight % polyoxymethylene and about 80 to about 95 weight % polyurethane, wherein the intermediate portion is disposed between the proximal portion and the distal portion.
1 more element
A balloon catheter comprising:
- an inner tubular member having a proximal end, a distal end and a longitudinal surface;
- a support member disposed over a substantial portion of the longitudinal surface, the support member having a distal end terminated proximal of the inner tubular member distal end;
- a polyoxymethylene-polyurethane elongate shaft including a proximal portion having about 80 to about 95 weight % polyoxymethylene and about 5 to about 20 weight % polyurethane, an intermediate portion having about 20 to about 50 weight % polyoxymethylene and about 50 to about 80 weight % polyurethane, and a distal portion having about 5 to about 20 weight % polyoxymethylene and about 80 to about 95 weight % polyurethane, wherein the intermediate portion is disposed between the proximal portion and the distal portion;
- and
- a balloon disposed about the distal portion of the polyoxymethylene-polyurethane elongate shaft.
2 more elements
Dependencies are inferred from the claim text.