Prosthetic tubular aortic conduit and method for manufacturing the same
First Claim
1. 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.
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0 Petitions
Accused Products
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.
281 Citations
12 Claims
- 1. 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.
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8. A method of manufacturing a prosthetic aortic conduit having first and second ends, which comprises the following steps:
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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.- View Dependent Claims (9, 10, 11)
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.
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11. The method of claim 9, wherein the first and second tubular conduits are made of Dacron or PTFE material.
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12. A method of replacing a root portion of an aorta which comprises the sinuses of Valsalva, said method comprising the steps of:
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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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Specification