TISSUE ANCHOR FOR ANNULOPLASTY DEVICE

• US 20180014933A1
• Filed: 07/12/2016
• Published: 01/18/2018
• Est. Priority Date: 10/29/2009
• Status: Active Grant

• Current Assignee: Valtech Cardio Ltd (Edwards Lifesciences Corporation)
• Original Assignee: Valtech Cardio Ltd (Edwards Lifesciences Corporation)
• Inventors: MILLER, Eran, CABIRI, Oz
• Granted Patent: US 10,098,737 B2
• Time in Patent Office: Days
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

An apparatus including an implant configured to be coupled to cardiac tissue of a patient, the implant including a sleeve; a spool coupled to the implant; a flexible contracting member coupled to the spool and the sleeve such that winding the contracting member around the spool tightens the contracting member; and a tissue anchor including a distal tissue coupling element configured to couple the tissue anchor to the cardiac tissue of the patient; and a proximal implant-receiving element configured to receive at least a portion of the implant and facilitate coupling of the implant to the tissue anchor; and a proximal implant-receiving element including an implant-restraining element coupled to a portion of the implant-receiving element, the implant-restraining element being configured to restrain the implant from separating from the implant-receiving element.

Claims

1-68. -68. (canceled)

69. Apparatus, comprising:

an implant configured to be coupled to cardiac tissue of a patient, the implant comprising;

a sleeve;

a spool coupled to the sleeve; and

a flexible contracting member that is coupled to the spool and to the sleeve, such that winding the contracting member around the spool tightens the contracting member; and

a tissue anchor comprising;

a distal tissue coupling element configured to couple the tissue anchor to the cardiac tissue of the patient; and

a proximal implant-receiving element configured to receive at least a portion of the implant and facilitate coupling of the implant to the tissue anchor, the proximal implant-receiving element comprising an implant-restraining element being configured to restrain the implant from separating from the proximal implant-receiving element.

70. The apparatus according to claim 69, wherein the implant comprises an annuloplasty device.

71. The apparatus according to claim 69, wherein the proximal implant-receiving element comprises a post.

72. The apparatus according to claim 71, wherein the post has a length of between 1 and 7 mm and a greatest cross-sectional area of between 0.03 mm̂

2 and 0.2 mm̂

2, which length is at least 4 times the square root of the greatest cross-sectional area.

73. The apparatus according to claim 69, wherein the proximal implant-receiving element comprises a barb configured to restrict proximal movement of the implant along the proximal implant-receiving element.

74. The apparatus according to claim 73, wherein the barb comprises one or more arms that are radially expandable to rest against an external surface of the implant following coupling of the implant to the proximal implant-receiving element.

75. The apparatus according to claim 74, wherein the one or more arms are radially collapsible during at least a portion of the coupling of the implant to the proximal implant-receiving element.

76. The apparatus according to claim 73, wherein the proximal implant-receiving element comprises an elastic portion that is configured to assume a first length when relaxed, and a second, greater length when under load.

77. The apparatus according to claim 76, wherein the elastic portion comprises a tension spring.

78. The apparatus according to claim 76, wherein the proximal implant-receiving element has a length of between 3 and 5 mm when the elastic portion is relaxed.

79. The apparatus according to claim 69, wherein the implant-restraining element comprises a protrusion configured to protrude into a plane of the implant and to couple the implant to the tissue anchor.

80. The apparatus according to claim 79, wherein the protrusion is shaped so as to define a distal shelf that has a transverse cross-sectional length that is larger than a transverse cross-sectional length of the proximal implant-receiving element, the distal shelf being configured to facilitate restricting of proximal motion of the implant along the protrusion.

81. The apparatus according to claim 69, further comprising a cord removably couplable to the tissue anchor, the cord being configured to facilitate passage of the implant therealong and toward the tissue anchor.

82. The apparatus according to claim 81, wherein the cord passes through a portion of the proximal implant-receiving element.