STENT DELIVERY SYSTEM
First Claim
1. A catheter shaft for use in a medical procedure, the catheter shaft comprising:
- a distal segment having a proximal end, a distal end and a lumen extending therethrough; and
a multi-lumen proximal segment having a proximal end, a distal end, a first lumen and a second lumen, wherein the distal end of the proximal segment is formed at an oblique angle defining a ramp;
wherein the distal segment is secured to the proximal segment such that each of the first and second lumens of the proximal segment is in association with the lumen of the distal segment.
1 Assignment
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Accused Products
Abstract
A push catheter for placement of a biliary stent. The push catheter includes an elongate shaft extending from a hub assembly. The elongate shaft includes a distal segment having a lumen extending therethrough, and a proximal segment having a plurality of lumens extending therethrough. The proximal segment is secured to the distal segment, such that the plurality of lumens of the proximal segment are in association with the lumen of the distal segment. The distal end of the proximal segment may be formed at an oblique angle to the longitudinal axis of the elongate shaft. Additionally, the elongate shaft may include a side port providing access to one or more of the plurality of lumens of the proximal segment.
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Citations
44 Claims
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1. A catheter shaft for use in a medical procedure, the catheter shaft comprising:
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a distal segment having a proximal end, a distal end and a lumen extending therethrough; and a multi-lumen proximal segment having a proximal end, a distal end, a first lumen and a second lumen, wherein the distal end of the proximal segment is formed at an oblique angle defining a ramp; wherein the distal segment is secured to the proximal segment such that each of the first and second lumens of the proximal segment is in association with the lumen of the distal segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A push catheter for placement of a biliary stent, the push catheter comprising:
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a hub assembly; and an elongate shaft secured to and extending from the hub assembly, the elongate shaft comprising; a distal segment having a proximal end, a distal end and a lumen extending therethrough; a proximal segment having a proximal end, a distal end, a first lumen extending from the distal end to the hub assembly and a second lumen extending from the distal end to the hub assembly, wherein the distal end of the proximal segment is formed at an oblique angle defining a ramp; and a side port extending through a side wall of the proximal segment and providing access to the first lumen; wherein the distal segment is secured to the proximal segment such that each of the first and second lumens of the proximal segment is in association with the lumen of the distal segment. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A biliary stent delivery system comprising:
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a guide catheter including a tubular member and a pull wire; a stent positioned about the tubular member of the guide catheter; and a push catheter, the push catheter comprising; a distal segment having a proximal end, a distal end and a lumen extending therethrough; and a proximal segment extending proximally from the distal segment, the proximal segment having a proximal end, a distal end, a first lumen and a second lumen; wherein the pull wire is positioned within the second lumen of the proximal segment of the push catheter. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A tool for urging an elongate shaft of a catheter into a curved orientation, the tool comprising:
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a body portion; a securement portion, the securement portion including a first leg extending from the body portion and a second leg extending from the body portion, the second leg spaced from the first leg such that the first and second legs are configured to retain the elongate shaft therebetween; and a biasing portion, the biasing portion including a third leg extending from the body portion; wherein the third leg is misaligned from the first and second legs, such that placement of the elongate shaft adjacent the third leg biases the elongate shaft into a curved orientation. - View Dependent Claims (42, 43, 44)
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Specification