One-way replacement valve
First Claim
Patent Images
1. A one-way artificial valve comprising:
- a frame formed of a continuous wire, wherein said wire forms into a tubular coil, said frame having a radially compressed configuration and a radially expanded configuration, wherein in the radially expanded configuration the frame includes a platform and a longitudinal axis; and
a flap coupled to the frame, wherein the flap includes a plurality of slits disposed in the flap, wherein the flap is generally circular in shape when resting against the platform, wherein the flap is generally coupled to the frame at an outer periphery of the flap, and wherein the slits allow a center portion of the flap to fold generally in a first direction in response to a force in the first direction and wherein in absence of the force the first direction the flap rests against the platform blocking flow in a second direction opposite the first direction.
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Accused Products
Abstract
Artificial valves for use as a venous valve or a heart valve are disclosed. The valve includes a frame including a platform and a valve material coupled to the frame. The valve material is a plurality of filaments or a flap. The valve material is coupled to the frame such that in response to a force in a first direction, e.g. blood flow, the valve material extends in the direct of the force to allow blood to flow past the valve material. In absence of the force in the first direction, the valve material rests against the platform to block blood flow in a direction opposite the first direction.
59 Citations
28 Claims
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1. A one-way artificial valve comprising:
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a frame formed of a continuous wire, wherein said wire forms into a tubular coil, said frame having a radially compressed configuration and a radially expanded configuration, wherein in the radially expanded configuration the frame includes a platform and a longitudinal axis; and a flap coupled to the frame, wherein the flap includes a plurality of slits disposed in the flap, wherein the flap is generally circular in shape when resting against the platform, wherein the flap is generally coupled to the frame at an outer periphery of the flap, and wherein the slits allow a center portion of the flap to fold generally in a first direction in response to a force in the first direction and wherein in absence of the force the first direction the flap rests against the platform blocking flow in a second direction opposite the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A one-way artificial valve comprising:
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a frame formed from a continuous wire, the frame having a radially compressed and a radially expanded configuration wherein the wire forms a tubular coil, wherein in the radially expanded configuration a portion of the wire extends in a spiral toward around a longitudinal axis of the coil to form a platform; and a flap coupled to the frame at the platform, wherein the flap is configured such that a force in a first direction causes the flap to fold generally in the first direction and wherein in absence of the force the first direction the flap rests against the platform blocking flow in a second direction opposite the first direction. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A one-way artificial valve comprising:
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a frame formed having a radially compressed configuration and a radially expanded configuration wherein a wire forms a tubular coil, wherein in the radially expanded configuration the frame includes a platform and a longitudinal axis; a flap coupled to the frame, wherein the flap is configured such that a force in a first direction causes the flap to fold generally in the first direction and wherein in absence of the force the first direction the flap rests against the platform blocking flow in a second direction opposite the first direction; and a sealing ring coupled to an outer periphery of the platform and extending radially inwardly from the outer periphery of the platform towards the longitudinal axis, an outer periphery of the flap overlapping with an inner periphery of the sealing ring when the flap rests against the platform. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification