Occlusion device having five or more arms
First Claim
Patent Images
1. An improved occlusion device, the occlusion device comprising:
- a center post;
first and second fixation devices connected to the center post and having an open configuration and a folded configuration, the first and second fixation devices comprising at least five arms, each arm including an atraumatic tip at an outer end, wherein the arms of at least one fixation device are not all of equal length so that when the fixation devices are in a folded configuration the atraumatic tips do not cluster at a same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and
first and second sheets attached to the first and second fixation devices respectively.
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Abstract
An occlusion device having at least five arms. Though the number of arms is increased, the diameter of each arm is reduced. As a result, the increased number of arms provides the desired tension as the occlusion device is deployed and provides the desired strength to hold the occlusion device in place and properly occlude the defect. At the same time, the reduced diameter of the arms improves the cycle life of the occlusion device. Furthermore, the increased number of arms provides for better sealing across the defect and reduces residual shunting.
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Citations
42 Claims
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1. An improved occlusion device, the occlusion device comprising:
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a center post; first and second fixation devices connected to the center post and having an open configuration and a folded configuration, the first and second fixation devices comprising at least five arms, each arm including an atraumatic tip at an outer end, wherein the arms of at least one fixation device are not all of equal length so that when the fixation devices are in a folded configuration the atraumatic tips do not cluster at a same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and first and second sheets attached to the first and second fixation devices respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An occlusion device with improved seating ability, the occlusion device comprising:
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a center post; first and second fixation devices emanating from the center post and having an open configuration and a folded configuration, wherein the first and second fixation devices comprise at least six arms, each arm including an atraumatic tip at an outer end, wherein at least one arm of the first fixation device has a length not equal to a length of the other arms of the first fixation device so that when the fixation devices are in a folded configuration the atraumatic tips do not cluster at a same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and first and second sails attached to the first and second fixation devices, respectively. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An occlusion device deliverable through a catheter, the occlusion device comprising:
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a center post; a first fixation device configured to be placed on a first side of a septal defect and having an open configuration and a folded configuration, the first fixation device comprising at least five arms, each arm including an atraumatic tip located at an outer end; and a second fixation device configured to be positioned on a second side of a septal defect and having an open configuration and a folded configuration, the second fixation device comprising at least five arms, each arm including an atraumatic tip located at an outer end; and wherein the arms of the first and second fixation devices have lengths such that when the arms are in a collapsed position for delivery through the catheter, the atraumatic tips located at the outer ends of the arms are at staggered locations, and wherein the arms are generally straight and extend radially outward from the ceter post when the fixation devices are in an open configuration. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An occlusion device for occluding a septal defect, the occlusion device comprising:
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a center post; a first fixation device configured to be placed on a first side of a septal defect and having an open configuration and a folded configuration, the first fixation device comprising a plurality of arms which do not have equal lengths, each arm including an atraumatic tip at an outer end; and a second fixation device configured to be positioned on a second side of a septal defect and having an open configuration and a folded configuration, the second fixation device comprising a plurality of arms which do not have equal lengths, each arm including an atraumatic tip at an outer end; and wherein when the fixation devices are in a folded configuration the atraumatic tips do not cluster at a same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration. - View Dependent Claims (33, 34, 35)
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36. An improved occlusion device, the occlusion device comprising:
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a center post; first and second fixation devices connected to the center post and having an open configuration and a folded configuration, the first and second fixation devices and comprising at least five arms, each arm having an atraumatic tip at an outer end, wherein the arms of the first fixation device are not all of equal lengths so that when the fixation devices are in a folded configuration the atraumatic tips do not cluster at the same location, and where the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and first and second sheets attached to the first and second fixation devices respectively. - View Dependent Claims (37, 38, 39)
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40. An improved occlusion device, the occlusion device comprising:
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a center post; and first and second fixation devices connected to the center post and having an open configuration and a folded configuration, the first and second fixation devices each comprising six arms, each arm including an atraumatic tip at an outer end, wherein the six arms extend through holes in the center post and the arms of at least one fixation device are not all of equal length so that when the fixation device is in a folded configuration the atraumatic tips do not cluster at a same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and first and second sheets attached to the first and second fixation devices respectively. - View Dependent Claims (41)
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42. An occlusion device for occluding a septal defect, the occlusion device comprising:
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a center post; a first fixation device configured to be placed on a first side of a septal defect and having an open configuration and a folded configuration, the first fixation device comprising at least five arms, each arm including an atraumatic tip at an outer end, wherein the arms of the first fixation device are not all of one length so that when the fixation device is in a folded configuration the atraumatic tips do not cluster at the same location, and wherein the arms are generally straight and extend radially outward from the center post when the fixation devices are in an open configuration; and a second fixation device configured to be positioned on a second side of a defect and having an open configuration and a folded configuration, the second fixation device comprising at least five arms, each arm including an atraumatic tip at an outer end, wherein the arms of the second fixation device are not all of one length so that when the fixation device is in a folded configuration the atraumatic tips do not cluster at the same location, and wherein the arms are generally straight and extend outward from the center post when the fixation devices are in an open configuration.
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Specification