Catch members for occluder devices

• US 9,084,603 B2
• Filed: 11/12/2013
• Issued: 07/21/2015
• Est. Priority Date: 12/22/2005
• Status: Active Grant

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Inventors: Opolski, Steven W., Forde, Sean T., Kladakis, Stephanie M., Callaghan, David J.
• Primary Examiner(s): ORKIN, ALEXANDER J
• Application Number:
  US14/078,330
• Publication Number:
  US 20140222058A1
• Time in Patent Office: 616 Days
• Field of Search: 606/151, 606/157, 606/158, 606/200, 606/213, 606/215, 604104-108
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00619 Locking means for locking the implement in expanded state
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor

Abstract

Devices and techniques for modifying and maintaining a configuration of an occlusion device for the closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. The devices and techniques relate particularly to, but are not limited to, modifying and maintaining a configuration of a PFO occluder made from a polymer tube. The proximal portion of a catch member may be provided with one or more protrusions, or arms, or bump or other raised element for securing the occluder in a partial or fully deployed configuration, either temporarily or permanently.

Claims

1. A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising:

a proximal side and a distal side, disposed along a longitudinal axis;

an occluder portion movable between the first and second configurations; and

,

a catch system for holding the medical device in the second configuration including a generally tubular catch member having a central lumen disposed along the longitudinal axis with a proximal portion and a proximal end, the proximal portion having a raised portion around its outer circumference, tabs axially extending toward the raised portion along the longitudinal axis and terminating at distal tab tips, and a planar lumen intersecting the proximal end of the catch member, such that during deployment, the proximal end of the catch member is adapted to pass through an inner passageway of the occluder and to temporarily secure the device in an intermediate configuration by compression of the planar lumen and to secure the device in the second configuration when a proximal end of the device engages the raised portion, the engagement with the raised portion being secured by the tabs, wherein in the intermediate configuration the tab tips are disposed out of the central lumen, and wherein in the second configuration the tab tips are disposed in the central lumen.

2. The collapsible medical device of claim 1, wherein the device is a bioresorbable material.