Prosthetic cardiac valve devices, systems, and methods

Patent metadata

Field	Value
Publication number	US-2024341951-A1
Application number	US-202318494520-A
Country	US
Kind code	A1
Filing date	Oct 25, 2023
Priority date	Dec 21, 2018
Publication date	Oct 17, 2024
Grant date	—

Abstract

A heart valve prosthesis for replacing a diseased native valve in a patient, the valve includes a compressible and expandable frame structure and an anchor connected to an outer periphery of the frame structure. The anchor comprises a free end and has a flat spiral shape. The valve may further include a valve segment mounted within the frame structure and expanded with the frame structure. The frame structure may be configured for receiving a valve segment.

First claim

1 - 69 . (canceled)

70 . A method for treating a diseased native valve in a patient, the method comprising:
advancing a frame structure and an anchor having a flat spiral shape from a first side of a native valve to a second side of the native valve; deploying the anchor adjacent the native valve; expanding the frame structure within the native valve from an unexpanded configuration to an expanded configuration; and anchoring the frame structure in the expanded configuration to the native valve with the anchor.

71 . The method of claim 70 , wherein deploying the anchor comprises deploying the anchor from a delivery configuration to a deployed configuration.

72 . The method of claim 71 , wherein the anchor is configured to wrap at least partially around a delivery device in the deployed configuration.

73 . The method of claim 71 , wherein the anchor is configured to wrap at least partially around the frame structure in the deployed configuration.

74 . The method of claim 71 , wherein a central point of the flat spiral shape is co-axial with a longitudinal axis of a delivery device when the anchor is in the deployed configuration.

75 . The method of claim 71 , wherein deploying the anchor comprises deploying the anchor within a subvalvular plane of the heart.

76 . The method of claim 71 , further comprising moving the deployed anchor into a subvalvular plane of the heart.

77 . The method of claim 71 , wherein deploying the anchor comprises actuating the anchor from the delivery configuration to the deployed configuration.

78 . The method of claim 77 , further comprising maintaining the anchor in the deployed configuration with one or more locking mechanisms.

79 . The method of claim 78 , wherein the one or more locking mechanisms comprise a first feature disposed on a first loop of the anchor and a correspondingly-shaped second feature disposed on a second loop of the anchor and wherein maintaining the anchor in the deployed configuration comprises nesting the first and second features with one another when the anchor is in the deployed configuration.

80 . The method of claim 77 , wherein actuating the anchor comprises releasing the frame structure from radial constriction by a delivery device.

81 . The method of claim 77 , wherein deploying the anchor comprises actuating the anchor from the delivery configuration to the deployed configuration on the second side of the native valve.

82 . The method of claim 77 , wherein deploying the anchor comprises actuating the anchor from the delivery configuration to the deployed configuration on the first side of the native valve.

83 . The method of claim 77 , wherein the deploying the anchor comprises actuating the anchor from the delivery configuration to the deployed configuration on the first side of the native valve and wherein advancing the anchor comprises advancing the anchor in the deployed configuration through the native valve to the second side of the native valve.

84 . The method of claim 83 , wherein advancing the anchor comprises pushing the anchor through the native valve.

85 . The method of claim 84 , wherein advancing the anchor further comprises rotating the anchor through the native valve.

86 . The method of claim 77 , wherein the deployed configuration comprises an intermediate deployed configuration and a fully deployed configuration, wherein actuating the anchor from the delivery configuration to the deployed configuration comprises actuating the anchor from the delivery configuration to the intermediate deployed configuration.

87 . The method of claim 86 , further comprising actuating the anchor from the intermediate deployed configuration to the fully deployed configuration adjacent a native valve in a patient.

88 . The method of claim 87 , wherein an outer perimeter of the flat spiral shape is the same in the intermediate deployed configuration and the fully deployed configuration.

89 . The method of claim 87 , wherein the anchor comprises a first loop, a second loop, and one or more locking mechanisms, and further comprising coupling the first loop to the second loop with the one or more locking mechanisms to maintain the anchor in the fully deployed configuration.

90 - 122 . (canceled)

Assignees

• Shifamed Holdings Llc

Inventors

• Argento Claudio
• Backus Andrew
• Yang Alice

Classifications

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title

• A61F2/2469

  with resilient valve members, e.g. conical spiral · CPC title

• A61F2/2418 Primary

  Scaffolds therefor, e.g. support stents · CPC title

• A61F2250/006

  modular · CPC title

• A61F2230/005

  Rosette-shaped, e.g. star-shaped · CPC title