Left atrial appendage occlusion device with active expansion

• US 7,597,704 B2
• Filed: 04/28/2003
• Issued: 10/06/2009
• Est. Priority Date: 04/28/2003
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Atritech Inc. (Boston Scientific Corporation)
• Inventors: Frazier, Andrew G. C., Khairkhahan, Alexander K., Roue, Chad C., van der Burg, Erik J., Klenk, Alan R.
• Primary Examiner(s): Nguyen; Anhtuan T
• Assistant Examiner(s): Houston; Elizabeth
• Application Number:
  US10/426,107
• Publication Number:
  US 20040215230A1
• Time in Patent Office: 2,353 Days
• Field of Search: 606190-200, 606/108, 606/118, 606/213, 606/151, 604107-109, 128/887
• US Class Current: 606/213
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00349 Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue A61B17/06066 takes precedence
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0071 spherical
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid

Abstract

An adjustable occlusion device and methods of deploying the device, comprising an actively expandable anchor for use in customizing the fit in a body lumen such as the left atrial appendage. Some embodiments of the actively expandable anchor include a positive force expander as an adjustable occlusion device using intertwining adjustable coils, engageable helical ribbons, or threaded tubes.

Claims

1. A method of deploying an implantable device comprising:

providing an expandable implant having a first end and a second end, the expandable implant having a collapsed configuration and a radially enlarged configuration, the expandable implant being biased to its radially enlarged configuration, wherein a first engagement member is attached to the first end of the implant and a second engagement member is attached to the second end of the implant, each engagement member having the same diameter;

rotating the second engagement member with respect to the first engagement member with the first engagement member and second engagement member remaining attached to the first and second ends of the implant, respectively, such that the first engagement member and second engagement member become more axially engaged in order to control a radial expansion of the implantable device,

wherein the first and second engagement members are disengaged in the collapsed configuration, and further comprising axially engaging the first engagement member with the second engagement member by allowing the expandable implant to expand under its bias to the radially enlarged configuration.