US6287331B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular medical prosthesis
Assignee: Boston Scientific Scimed Inc
•
Filing: 1998-05-12
•
Granted: 2001-09-11
•
Expires: 2018-05-12
Abstract
Abstract A tubular prosthesis device for use within the body. The device includes, a metal filament material formed of metal outer member having an exposed outer surface and a core within the extended outer member formed of a different metal than the outer member. The core is secured within and substantially enclosed by the outer member. The device can be reduced to a small size for introduction into the body lumen and expandable to a sufficiently large size to engage the wall of the body lumen. Stents formed of composite wires are shown.
Inventors
- 👤 Kevin R. Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/86; A61F2/90; A61B; A61B90/00; A61B90/39; A61L; A61L31/00; A61L31/02; A61L31/022; A61L31/08; A61L31/082; A61L31/088; A61L31/14; A61L31/18; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108; A61F2210/00; A61F2210/0014; A61F2210/0019; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0013; A61F2240/00; A61F2240/001; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098; A61M25/09; A61M2025/09166
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
88 words
A tubular prosthesis device for use within the body comprised of a metal filament material formed of a metal outer member of extended length having an exposed outer surface, and a core within said extended outer member comprising a different metal than said outer member, said core being secured within and substantially enclosed by said outer member, said device being capable of reduction to a small size for introduction into said body lumen and expandable to a sufficiently large size to engage the wall of said body lumen.
Claim 2
Dependent Claim
88 words
A tubular prosthesis device for use within the body comprised of a metal filament material formed of a metal outer member of extended length having an exposed outer surface, and a core within said extended outer member comprising a different metal than said outer member, said core being secured within and substantially enclosed by said outer member, said device being capable of reduction to a small size for introduction into said body lumen and expandable to a sufficiently large size to engage the wall of said body lumen.
Claim 3
Dependent Claim
95 words
An implantable tubular medical stent delivery system comprising a catheter designed to deliver a tubular stent to a desired delivery site, the stent being expandable from a first profile for facilitating insertion into a body lumen, to a second, radially expanded profile at the desired delivery site, a unitary metal member configured to form the stent, the unitary member being formed of three or more coaxial metal layers incorporating at least a first and second metal, the first metal having a higher density than the second metal so that the stent will have enhanced visibility.
Claim 4
Dependent Claim
95 words
An implantable tubular medical stent delivery system comprising a catheter designed to deliver a tubular stent to a desired delivery site, the stent being expandable from a first profile for facilitating insertion into a body lumen, to a second, radially expanded profile at the desired delivery site, a unitary metal member configured to form the stent, the unitary member being formed of three or more coaxial metal layers incorporating at least a first and second metal, the first metal having a higher density than the second metal so that the stent will have enhanced visibility.
Claim 5
Dependent Claim
54 words
The stent delivery system of claim 2 further comprising a ballon disposed on a distal end of the catheter, the stent having an inner lumen which surrounds the balloon when the balloon is uninflated, and the stent being expandable from the first profile to the second, radially expanded profile when the balloon is expanded.
Claim 6
Dependent Claim
13 words
The stent delivery system of claim 2 wherein the stent is plastically deformable.
Claim 7
Dependent Claim
14 words
The stent delivery system of claim 4 wherein the second metal is stainless steel.
Claim 8
Dependent Claim
20 words
The stent delivery system of claim 2 wherein the first metal has a density of about 9.9 g/cc or greater.
Claim 9
Dependent Claim
20 words
The stent delivery system of claim 2 wherein the first metal has a density of about 16 g/cc or greater.
Claim 10
Dependent Claim
20 words
The stent delivery system of claim 2 wherein the first metal has a modulus of elasticity below about 550 Gpa.
Claim 11
Dependent Claim
13 words
The stent delivery system of claim 2 wherein the first metal is gold.
Claim 12
Dependent Claim
13 words
The stent delivery system of claim 2 wherein the first metal is tantalum.
Claim 13
Dependent Claim
75 words
An implantable medical stent comprising a metal member configured to substantially define a tube, the metal member having three or more coaxial metal layers including at least a first layer formed of a first metal and a second layer formed of a second metal, the first metal having a density greater than the second metal to enhance visibility of the stent and the first layer is disposed along an inside surface of the second layer.
Claim 14
Dependent Claim
75 words
An implantable medical stent comprising a metal member configured to substantially define a tube, the metal member having three or more coaxial metal layers including at least a first layer formed of a first metal and a second layer formed of a second metal, the first metal having a density greater than the second metal to enhance visibility of the stent and the first layer is disposed along an inside surface of the second layer.
Claim 15
Dependent Claim
12 words
The stent of claim 11 wherein the second metal is stainless steel.
Claim 16
Dependent Claim
11 words
The stent of claim 11 wherein the stent is plastically deformable.
Claim 17
Dependent Claim
17 words
The stent of claim 11 wherein the first metal has a density of 9.9 g/cc or greater.
Claim 18
Dependent Claim
18 words
The stent of claim 11 wherein the first metal has a density of about 16 g/cc or greater.
Claim 19
Dependent Claim
11 words
The stent of claim 11 wherein the first metal is gold.
Claim 20
Dependent Claim
12 words
The stent of claim 16 wherein the second metal is stainless steel.
Claim 21
Dependent Claim
11 words
The stent of claim 11 wherein the first metal is tantalum.
Claim 22
Dependent Claim
44 words
A tubular endoprosthesis in the form of a composite metal member configured as a tube and composed of three or more coaxial metal layers including a first metal and a second metal, wherein the first metal has a density greater than the second metal.
Claim 23
Dependent Claim
44 words
A tubular endoprosthesis in the form of a composite metal member configured as a tube and composed of three or more coaxial metal layers including a first metal and a second metal, wherein the first metal has a density greater than the second metal.
Claim 24
Dependent Claim
11 words
The endoprosthesis of claim 19 wherein the first metal is gold.
Claim 25
Dependent Claim
12 words
The endoprosthesis of claim 20 wherein the second metal is stainless steel.
Claim 26
Dependent Claim
19 words
The endoprosthesis of claim 21 wherein the metal member has a cross-sectional thickness of about 0.015 inches or less.
Claim 27
Dependent Claim
15 words
The endoprosthesis of claim 22 wherein said endoprosthesis is a plastically deformable balloon expandable stent.
Claim 28
Dependent Claim
10 words
The endoprosthesis of claim 19 wherein said endoprosthesis is self-expanding.
Claim 29
Dependent Claim
11 words
The endoprosthesis of claim 19 wherein the first metal is tantalum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-10 | 2005-03-12 | 2005-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-10 | 2009-03-12 | 2009-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-10 | 2013-03-12 | 2013-09-11 | $7700.00 | Window Closed / Lapsed |