Implantable prosthetic valve with non-laminar flow
First Claim
1. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising:
- a support stent, and a valve assembly comprising a flexible conduit having an inlet end and an outlet end, wherein when flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position;
wherein a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow; and
where the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing.
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0 Petitions
Accused Products
Abstract
A valve prosthesis device is disclosed suitable for implantation in body ducts. The device comprises a support stent, comprised of a deployable construction adapted to be initially crimped in a narrow configuration suitable for catheterization through the body duct to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location, and a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet. The support stent is provided with a plurality of longitudinally rigid support beams of fixed length. When flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position, whereas a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow. The device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing.
352 Citations
75 Claims
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1. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising:
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a support stent, and a valve assembly comprising a flexible conduit having an inlet end and an outlet end, wherein when flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position;
wherein a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow; and
where the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing. - View Dependent Claims (2, 3, 4, 5, 6, 63, 64, 65, 66)
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7. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising:
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a support stent, comprised of a deployable construction adapted to be initially crimped in a narrow configuration suitable for catheterization through the body duct to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location, the support stent provided with a plurality of longitudinally rigid support beams of fixed length; and
a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet, wherein when flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position, wherein a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow, and wherein the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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- 39. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising a main conduit body having an inlet and an outlet and pliant leaflets attached at the outlet so that when flow passes through the conduit from the inlet to the outlet the leaflets are in an open position allowing the flow to exit the outlet, and when the flow is reversed the leaflets collapse so as to block the outlet, wherein the main body is made from polyethylene terephtalate and collapsible leaflets are made form polyurethane and wherein the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing.
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42. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising:
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a support stent, comprised of a deployable construction adapted to be initially crimped in a narrow configuration suitable for catheterization through the body duct to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location, the support stent provided with a plurality of longitudinally rigid support beams of fixed length;
a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet; and
substantially equidistant rigid support beams interlaced or attached to the slack portion of the valve assembly material, arranged longitudinally, wherein the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing.
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43. A valve prosthesis device suitable for implantation in corporeal ducts, the device comprising:
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an expandable support frame, the support frame provided with a plurality of longitudinally rigid support beams of fixed length; and
a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet, wherein when flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position, wherein a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow, and wherein the device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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Specification