Electrical conduction block implant device
First Claim
Patent Images
1. A pulmonary vein implant comprising:
- an implant framework comprising a scar inducing section that is expandable from a delivery state to an expanded state;
wherein said scar inducing section is sized and shaped to have an expansion force when said framework expands from said delivery state to said expanded state such that a continuous circumference of said scar inducing section migrates substantially completely through a pulmonary vein wall of said pulmonary vein over a period of time, thereby creating a continuous scar line in said pulmonary vein.
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Abstract
The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.
209 Citations
26 Claims
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1. A pulmonary vein implant comprising:
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an implant framework comprising a scar inducing section that is expandable from a delivery state to an expanded state; wherein said scar inducing section is sized and shaped to have an expansion force when said framework expands from said delivery state to said expanded state such that a continuous circumference of said scar inducing section migrates substantially completely through a pulmonary vein wall of said pulmonary vein over a period of time, thereby creating a continuous scar line in said pulmonary vein. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A pulmonary vein implant comprising:
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an implant framework including a spatial anchoring section and a physical scar inducing section wherein; said spatial anchoring section and said physical scar inducing section are substantially separate and distinct from each other along an axial length of said framework, said physical scar inducing section is independently expandable relative to said spatial anchoring section, and said physical scar inducing section is sized and shaped to have an expansion force when said implant framework expands from a delivery state to an expanded state such that a circumference of said framework migrates substantially completely through a pulmonary vein wall of said pulmonary vein over a period of time, thereby creating a substantially continuous scar line in said pulmonary vein. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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- 23. A pulmonary vein implant comprising an elongated strip movable between a relaxed shape and a flattened, stressed shape that is substantially linear, said elongated-strip having a plurality of retention sections that are disposed along said elongated strip that are deflectable relative to said elongated strip.
Specification