Stent delivery system with improved tracking
First Claim
Patent Images
1. A medical device delivery system comprising:
- an inner tube having a proximal end and a distal end;
at least one securement hub disposed about the distal end of the inner tube, the securement hub comprising an inner layer of material and an outer layer of material, the inner layer of material more rigid than the outer layer of material, wherein the outer layer is in contact with the inner layer and the outer layer is not in contact with the inner tube;
a balloon disposed about the securement hub and the distal end of the inner tube;
an inflation lumen in fluid communication with the balloon; and
a stent disposed about the balloon and the at least one securement hub, the stent having a length starting at a first end of the stent and terminating at a second end of the stent, wherein the at least one securement hub is positioned between the first and second ends of the stent.
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Abstract
A medical device delivery system comprises an inner tube and at least one securement hub disposed about the distal end of the inner tube. The securement hub comprises an inner layer of material and an outer layer of material. The inner layer of material is more rigid than the outer layer of material. A balloon, in fluid communication with an inflation lumen, may be disposed about the securement hub and the distal end of the inner tube. The medical device delivery system may be used to deliver medical devices such as stents.
36 Citations
24 Claims
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1. A medical device delivery system comprising:
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an inner tube having a proximal end and a distal end;
at least one securement hub disposed about the distal end of the inner tube, the securement hub comprising an inner layer of material and an outer layer of material, the inner layer of material more rigid than the outer layer of material, wherein the outer layer is in contact with the inner layer and the outer layer is not in contact with the inner tube;
a balloon disposed about the securement hub and the distal end of the inner tube;
an inflation lumen in fluid communication with the balloon; and
a stent disposed about the balloon and the at least one securement hub, the stent having a length starting at a first end of the stent and terminating at a second end of the stent, wherein the at least one securement hub is positioned between the first and second ends of the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device delivery system comprising:
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an inner tube having a proximal end and a distal end;
a marker band disposed about the distal end of the inner tube;
a securement hub disposed about the marker band, wherein the securement hub is in contact with the marker band and the securement hub is not in contact with the inner tube;
a balloon disposed about the securement hub and distal end of the inner tube;
a stent disposed about the balloon and securement hub, the stent having a length starting at a first end of the stent and terminating at a second end of the stent, wherein the securement hub is positioned between the first and second ends of the stent; and
an inflation lumen in fluid communication with the balloon. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 24)
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18. A medical device delivery system comprising:
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an inner tube having a proximal end and a distal end;
a securement hub disposed about the distal end of the inner tube, the securement hub including an outer layer of a polymeric material and an inner layer, the inner layer more rigid than the inner tube, wherein the outer layer is in contact with the inner layer and the outer layer is not in contact with the inner tube;
a balloon disposed about the securement hub and distal end of the inner tube;
a stent disposed about the balloon and securement hub, the stent having a length starting at a first end of the stent and terminating at a second end of the stent, wherein the securement hub is positioned between the first and second ends of the stent; and
an inflation lumen in fluid communication with the balloon. - View Dependent Claims (22, 23)
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19. A medical device delivery system comprising:
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an inner tube having a proximal end and a distal end;
a multilayer securement hub disposed about the distal end of the inner tube, the multilayer securement hub composed of a plurality of layers of material including a first layer of a first material and a second layer of a second material, the second material having a composition different from the composition of the first material, wherein the first layer is in contact with the second layer and the first layer is not in contact with the inner tube;
a balloon disposed about the securement hub and distal end of the inner tube;
a stent disposed about the balloon and securement hub, the stent having a length starting at a first end of the stent and terminating at a second end of the stent, wherein the multilayer securement hub is Positioned between the first and second ends of the stent; and
an inflation lumen in fluid communication with the balloon. - View Dependent Claims (20, 21)
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Specification