Patent US6352554B2 successfully refreshed from Google Patents.
US6352554B2
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Prosthetic tubular aortic conduit and method for manufacturing the same
Assignee: Vascutek Ltd
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Filing: 1999-04-29
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Granted: 2002-03-05
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Expires: 2019-04-29
Abstract
Abstract A prosthetic aortic conduit for replacing a root portion of an aorta is provided. The conduit comprises a first tubular portion and a second tubular portion which are connected together along a substantially common axis. The second tubular portion does not substantially deform in a longitudinal direction and has resilient means which allow said second portion to be expandable in a lateral direction. This second portion is able to deform laterally to mimic the function of the sinuses of Valsalva. The method of manufacturing such a conduit comprises the steps of: a) providing a first tubular conduit suitable for use in heart surgery and having a longitudinal axis and first resilient means allowing some expansion in the longitudinal direction only; b) securing to one of the ends of this first conduit a second tubular conduit suitable for use in heart surgery, this second conduit having second resilient means which allows some expansion in the lateral direction only.
Inventors
- 👤 Ruggero De Paulis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; A61F2/04; A61F2/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
95 words
A prosthetic aortic conduit for replacing a root portion of an aorta, said conduit having first and second ends, wherein said conduit comprises a first tubular portion and a second tubular sinus portion connected together along a substantially common axis, wherein the first tubular portion forms the first end of the conduit, wherein said second sinus portion does not substantially deform in a longitudinal direction and has resilient means comprising longitudinally extending corrugations which allow said second sinus portion to be expandable in a later direction to mimic the function of the sinuses of Valsalva.
Claim 2
Dependent Claim
95 words
A prosthetic aortic conduit for replacing a root portion of an aorta, said conduit having first and second ends, wherein said conduit comprises a first tubular portion and a second tubular sinus portion connected together along a substantially common axis, wherein the first tubular portion forms the first end of the conduit, wherein said second sinus portion does not substantially deform in a longitudinal direction and has resilient means comprising longitudinally extending corrugations which allow said second sinus portion to be expandable in a later direction to mimic the function of the sinuses of Valsalva.
Claim 3
Dependent Claim
28 words
The prosthetic aortic conduit of claim 1 , wherein said first portion is provided with resilient means which allow expansion of said first portion in a longitudinal direction.
Claim 4
Dependent Claim
18 words
The prosthetic aortic conduit of claim 1 , wherein said conduit is made of DACRON or PTFE material.
Claim 5
Dependent Claim
28 words
The prosthetic aortic conduit of claim 3 , wherein the first and second portions are made of two distinct tubes which are secured together along said common axis.
Claim 6
Dependent Claim
16 words
The prosthetic aortic conduit of claim 3 , which is further provided with a prosthetic valve.
Claim 7
Dependent Claim
27 words
The prosthetic aortic conduit of claim 1 , wherein said first portion resilient means comprises annular corrugations successively provided along the longitudinal axis of said first portion.
Claim 8
Dependent Claim
46 words
The prosthetic aortic conduit of claim 1 , wherein a third tubular portion is connected to the second portion along said substantially common axis and wherein said third tubular portion is provided with resilient means which allow expansion of said third portion in a longitudinal direction.
Claim 9
Independent Claim
107 words
A method of manufacturing a prosthetic aortic conduit having first and second ends, which comprises the following steps: a) providing a first tubular conduit suitable for use in heart surgery, said first conduit having a longitudinal axis and first resilient means allowing some expansion in the longitudinal direction only; and b) securing to one of the ends of this first conduit a second tubular sinus conduit suitable for use in heart surgery, said second sinus conduit having a circumference and second resilient means which allows some expansion in the lateral direction only; so that the first tubular portion forms the first end of the prosthetic aortic conduit.
Claim 10
Independent Claim
107 words
A method of manufacturing a prosthetic aortic conduit having first and second ends, which comprises the following steps: a) providing a first tubular conduit suitable for use in heart surgery, said first conduit having a longitudinal axis and first resilient means allowing some expansion in the longitudinal direction only; and b) securing to one of the ends of this first conduit a second tubular sinus conduit suitable for use in heart surgery, said second sinus conduit having a circumference and second resilient means which allows some expansion in the lateral direction only; so that the first tubular portion forms the first end of the prosthetic aortic conduit.
Claim 11
Dependent Claim
49 words
The method of claim 8 , wherein the first resilient means comprises a plurality of annular corrugations successively provided along the longitudinal axis of the first conduit and wherein the second resilient means comprises a plurality of longitudinally extending corrugations successively provided around the circumference of the second conduit.
Claim 12
Dependent Claim
72 words
The method of claim 9 , wherein said second tubular conduit is made according to following steps: a) taking a tubular conduit suitable for use in heart surgery, said conduit having annular corrugations allowing some expansion in the longitudinal direction only and having two opposite ends; and b) cutting said tubular conduit from end to end; and c) aligning and securing the two opposite ends together to obtain said second tubular conduit.
Claim 13
Dependent Claim
20 words
The method of claim 9 , wherein the first and second tubular conduits are made of Dacron or PTFE material.
Claim 14
Independent Claim
99 words
A method of replacing a root portion of an aorta which comprises the sinuses of Valsalva, said method comprising the steps of: excising said portion of the aorta; and replacing said excised portion by providing a prosthetic conduit which comprises a first tubular portion and a second tubular sinus portion connected together along a substantially common axis, wherein said second portion does not substantially deform in a longitudinal direction and has resilient means comprising longitudinally extending corrugations which allow said second sinus portion to be expandable in a lateral direction to mimic the function of the sinuses of Valsalva.
Claim 15
Independent Claim
99 words
A method of replacing a root portion of an aorta which comprises the sinuses of Valsalva, said method comprising the steps of: excising said portion of the aorta; and replacing said excised portion by providing a prosthetic conduit which comprises a first tubular portion and a second tubular sinus portion connected together along a substantially common axis, wherein said second portion does not substantially deform in a longitudinal direction and has resilient means comprising longitudinally extending corrugations which allow said second sinus portion to be expandable in a lateral direction to mimic the function of the sinuses of Valsalva.
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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) | 2005-03-04 | 2005-09-03 | 2006-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-04 | 2009-09-03 | 2010-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-04 | 2013-09-03 | 2014-03-05 | $7700.00 | Window Closed / Lapsed |