CLOSURE DEVICE WITH STRING RETRACTABLE UMBRELLA
First Claim
1. A closure device for occluding a body opening comprising:
- a distal occluding body having an expandable distal umbrella frame and a proximal occluding body having an expandable proximal umbrella frame, the distal frame including a plurality of struts having first ends attached to a distal end of a center rod, the proximal frame including a center ring and a plurality of struts having first ends attached to the center ring, the center ring being slidable along the center rod, the struts of each frame being connected to a biocompatible sheet material, the center rod defining a longitudinal axis, the distal frame struts extending from the distal end of the center rod in a generally parallel, axial direction with respect to the longitudinal axis when the distal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the distal frame is in an expanded configuration, the proximal frame struts extending from the center ring in a generally parallel, axial direction with respect to the longitudinal axis when the proximal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the proximal frame is in an expanded configuration, each strut of the distal frame extending from the first end and terminating with an eyelet, wherein the distal and proximal frames expand to their expanded configurations on opposite sides of the body opening; and
at least one drawstring threaded through the eyelets of the distal frame and through the center ring of the proximal frame to connect the distal and proximal occluding bodies to one another, the at least one drawstring extending proximally from the center ring, wherein manipulation of the center rod and the at least one drawstring extending proximally from the center ring is configured to move the distal and proximal frames from their expanded configurations toward their collapsed configurations for at least partial retrieval of the closure device.
3 Assignments
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Accused Products
Abstract
A repositionable closure device for occluding a body opening is provided. The closure device includes distal and proximal occluding bodies having expandable distal and proximal umbrella frames. Each umbrella frame includes a plurality of struts connected to a biocompatible sheet material. The distal and proximal umbrella frames expand to expanded configurations on opposite sides of the body opening. The struts of the distal umbrella frame terminate with an eyelet. The distal occluding body is connected to a distal end of a center rod and the proximal umbrella frame is slidable along the center rod via a center ring. At least one drawstring is threaded through the eyelets and the center ring, connecting the distal and proximal occluding bodies. The drawstring extends proximally from the center ring. Manipulation of the drawstring and the center rod is configured to collapse the closure device for at least partial retrieval during repositioning.
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Citations
20 Claims
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1. A closure device for occluding a body opening comprising:
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a distal occluding body having an expandable distal umbrella frame and a proximal occluding body having an expandable proximal umbrella frame, the distal frame including a plurality of struts having first ends attached to a distal end of a center rod, the proximal frame including a center ring and a plurality of struts having first ends attached to the center ring, the center ring being slidable along the center rod, the struts of each frame being connected to a biocompatible sheet material, the center rod defining a longitudinal axis, the distal frame struts extending from the distal end of the center rod in a generally parallel, axial direction with respect to the longitudinal axis when the distal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the distal frame is in an expanded configuration, the proximal frame struts extending from the center ring in a generally parallel, axial direction with respect to the longitudinal axis when the proximal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the proximal frame is in an expanded configuration, each strut of the distal frame extending from the first end and terminating with an eyelet, wherein the distal and proximal frames expand to their expanded configurations on opposite sides of the body opening; and at least one drawstring threaded through the eyelets of the distal frame and through the center ring of the proximal frame to connect the distal and proximal occluding bodies to one another, the at least one drawstring extending proximally from the center ring, wherein manipulation of the center rod and the at least one drawstring extending proximally from the center ring is configured to move the distal and proximal frames from their expanded configurations toward their collapsed configurations for at least partial retrieval of the closure device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A closure device assembly for occluding a body opening, the assembly comprising:
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a delivery catheter including a proximal and a distal end and a lumen formed through the proximal and distal ends; a closure device collapsibly disposed within the distal end of the delivery catheter, the closure device including a distal occluding body having an expandable distal umbrella frame and a proximal occluding body having an expandable proximal umbrella frame, the distal frame including a plurality of struts having first ends attached to a distal end of a center rod, the proximal frame including a center ring and a plurality of struts having first ends attached to the center ring, the center ring being slidable along the center rod, the struts of each frame being connected to a biocompatible sheet material, the center rod defining a longitudinal axis, the distal frame struts extending from the distal end of the center rod in a generally parallel, axial direction with respect to the longitudinal axis when the distal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the distal frame is in an expanded configuration, the proximal frame struts extending from the center ring in a generally parallel, axial direction with respect to the longitudinal axis when the proximal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the proximal frame is in an expanded configuration, each strut of the distal frame extending from the first end and terminating with an eyelet, wherein the distal and proximal frames expand to their expanded configurations on opposite sides of the body opening; and a drawstring threaded through the eyelets of the distal frame and through the center ring of the proximal frame to connect the distal and proximal occluding bodies to one another, the drawstring extending proximally from the center ring, wherein manipulation of the center rod and the drawstring is configured to move the distal and proximal frames from their expanded configurations toward their collapsed configurations for at least partial retrieval of the closure device. - View Dependent Claims (15)
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16. A method for closing a body opening in a patient comprising:
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positioning a delivery catheter having a proximal end, a distal end, and a lumen formed through the proximal and distal ends within the body opening, the delivery catheter including a closure device collapsibly disposed within the lumen at the distal end of the delivery catheter, the closure device including a distal occluding body having an expandable distal umbrella frame and a proximal occluding body having an expandable proximal umbrella frame, the distal frame including a plurality of struts having first ends attached to a distal end of a center rod, the proximal frame including a center ring and a plurality of struts having first ends attached to the center ring, the center ring being slidable along the center rod, the struts of each frame being connected to a biocompatible sheet material, the center rod defining a longitudinal axis, the distal frame struts extending from the distal end of the center rod in a generally parallel, axial direction with respect to the longitudinal axis when the distal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the distal frame is in an expanded configuration, the proximal frame struts extending from the center ring in a generally parallel, axial direction with respect to the longitudinal axis when the proximal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the proximal frame is in an expanded configuration, each strut of the distal frame extending from the first end and terminating with an eyelet, the closure device further including at least one drawstring threaded through the eyelets of the distal frame and through the center ring of the proximal frame to connect the distal and proximal occluding bodies to one another, the at least one drawstring extending proximally from the center ring; and deploying the closure device from the delivery catheter about the body opening such that the distal frame of the distal occluding body expands to its expanded configuration at a distal end of the body opening and the proximal frame of the proximal occluding body expands to its expanded configuration at an opposing proximal end of the body opening. - View Dependent Claims (17, 18, 19, 20)
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Specification