Medical devices and tapered tubular members for use in medical devices
First Claim
Patent Images
1. A medical device, comprising:
- a metallic tubular member including a tube wall defining an inner diameter and having a wall thickness;
a core wire extending within and attached to the tubular member, the core wire having a distal portion with an outer surface;
wherein a gap is defined between the outer surface of the core wire and an inner surface of the tubular member;
wherein the tubular member has a plurality of slots formed therein;
wherein the tubular member includes a first portion having a first length and wherein the tube wall has a constant wall thickness across the first length;
wherein the tubular member includes a second portion, wherein the second portion is disposed at a distal end of the medical device, and wherein the second portion has a second length and wherein along an inner surface of the tubular member the tube wall thins in a curved manner so that the inner diameter increases distally across the second length;
wherein the length of the second portion is shorter than the length of the first portion; and
wherein the distal portion of the core wire extends through the first portion of the tubular member and along the second length to a distal end of the second portion of the tubular member.
1 Assignment
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Accused Products
Abstract
Medical devices and methods for making and using the same. An example medical device may include a metallic tubular member including a tube wall defining an inner diameter and having a wall thickness. The tubular member may have a plurality of slots formed therein. The tubular member may also include first portion having a first length. The tube wall may have a substantially constant wall thickness across the first length. The tubular member may also include a second portion having a second length. The tube wall may thin so that the inner diameter increases across the second length.
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Citations
17 Claims
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1. A medical device, comprising:
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a metallic tubular member including a tube wall defining an inner diameter and having a wall thickness; a core wire extending within and attached to the tubular member, the core wire having a distal portion with an outer surface; wherein a gap is defined between the outer surface of the core wire and an inner surface of the tubular member; wherein the tubular member has a plurality of slots formed therein; wherein the tubular member includes a first portion having a first length and wherein the tube wall has a constant wall thickness across the first length; wherein the tubular member includes a second portion, wherein the second portion is disposed at a distal end of the medical device, and wherein the second portion has a second length and wherein along an inner surface of the tubular member the tube wall thins in a curved manner so that the inner diameter increases distally across the second length; wherein the length of the second portion is shorter than the length of the first portion; and
wherein the distal portion of the core wire extends through the first portion of the tubular member and along the second length to a distal end of the second portion of the tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for manufacturing a medical device, the method comprising:
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providing a metallic tubular member including a tube wall defining an inner diameter, the tubular member having a wall thickness, wherein the tubular member includes a first portion having a first length, wherein the tube wall has a constant wall thickness across the first length, wherein tubular member includes a second portion, wherein the second portion is disposed at a distal end of the tubular member, and wherein the second portion has a second length shorter than the first length; providing a core wire, the core wire having a distal portion with an outer surface; disposing the core wire within the tubular member, wherein a gap is defined between the outer surface of the core wire and an inner surface of the tubular member, wherein the core wire and the tubular member are attached to one another; forming a plurality of slots in the tubular member; thinning the second portion of the tubular member such that along an inner surface of the tubular member the tube wall thins in a curved manner and the inner diameter increases distally across the second length; extending the core wire through the first portion of the tubular member and along the second length to a distal end of the second portion of the tubular member; and wherein the second portion of the tubular member defines a distal end of the medical device.
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16. A medical device, comprising:
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a metallic tubular member including a tube wall defining an inner diameter and having a wall thickness; a core wire extending within and attached to the tubular member, the core wire having a distal portion with an outer surface; wherein a gap is defined between the outer surface of the core wire and an inner surface of the tubular member; wherein the tubular member has a plurality of slots formed therein; wherein the tubular member includes a first portion having a first length and wherein the tube wall has a constant wall thickness across the first length; wherein the tubular member includes a second portion, wherein the second portion is disposed at a distal end of the medical device, and wherein the second portion has a second length and wherein along an inner surface of the tubular member the tube wall thins in a curved manner so that the inner diameter increases distally across the second length; and wherein the length of the second portion is shorter than the length of the first portion. - View Dependent Claims (17)
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Specification