Intra-atrial implants having variable thicknesses to accommodate variable thickness in septum
First Claim
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1. A device for directing blood flow across in the atrial septum in a heart of a patient, the device comprising:
- a. a core segment having a length greater than the atrial septum and defining a passage, the core segment having a first diameter when deployed;
b. a first flexible annular flange joining a first end of the core segment, wherein the first flexible annual flange is configured to form a substantially flat surface that contacts one side of the atrial septum, forming a first contacting surface; and
c. a second flexible annular flange joining a second end of the core segment;
wherein a distal portion of the second flexible annular flange is formed to lie at a parallel angle to and to contact the other side of the atrial septum, forming a second contacting surface, and wherein the first contacting surface is greater than the second contacting surface;
a flow control element attached to the core segment, wherein the device is collapsible, enabling the core segment to have a second diameter less than the first diameter thereby enabling percutaneous delivery of the device to the heart of the patient, wherein at least a portion of the first and second annular flanges define an annular gap, and wherein said annular gap is smaller than the length of the core segment.
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Abstract
The invention is a septal implant that can accommodate variable thicknesses of the patient'"'"'s atrial septum as well the variable thicknesses of septums across a population. The invention is able to accomplish this result by having flexible annular flanges that define a gap into which the septum fits. Due to the flexible nature of the annular flanges, the gap is adjustable.
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Citations
17 Claims
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1. A device for directing blood flow across in the atrial septum in a heart of a patient, the device comprising:
- a. a core segment having a length greater than the atrial septum and defining a passage, the core segment having a first diameter when deployed;
b. a first flexible annular flange joining a first end of the core segment, wherein the first flexible annual flange is configured to form a substantially flat surface that contacts one side of the atrial septum, forming a first contacting surface; and
c. a second flexible annular flange joining a second end of the core segment;
wherein a distal portion of the second flexible annular flange is formed to lie at a parallel angle to and to contact the other side of the atrial septum, forming a second contacting surface, and wherein the first contacting surface is greater than the second contacting surface;
a flow control element attached to the core segment, wherein the device is collapsible, enabling the core segment to have a second diameter less than the first diameter thereby enabling percutaneous delivery of the device to the heart of the patient, wherein at least a portion of the first and second annular flanges define an annular gap, and wherein said annular gap is smaller than the length of the core segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- a. a core segment having a length greater than the atrial septum and defining a passage, the core segment having a first diameter when deployed;
Specification