Adjustable left atrial appendage implant

• US 20030204203A1
• Filed: 05/19/2003
• Published: 10/30/2003
• Est. Priority Date: 11/08/1999
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: EV3 Sunnyvale Incorporated
• Inventors: van der Burg, Erik J., Kume, Stewart M., Kreidler, Marc S., Khairkhahan, Alexander K., Roue, Chad C., Ogi, Darrell H., Frazier, Andrew G.C., Klenk, Alan R.
• Granted Patent: US 8,323,309 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• 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 17/12022 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 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00615 Implements with an occluder on one side of the opening and holding means therefor on the other
• 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
• CPC Class Codes: A61B 2017/081 Tissue approximator A61B2017/1103, A61B17/8866 take precedence
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12095 Threaded connection
• CPC Class Codes: A61F 2/0108 Both ends closed, i.e. legs gathered at both ends
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• 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 2230/008 : paraboloidal
• CPC Class Codes: A61M 2025/1054 : having detachable or disposable balloons
• CPC Class Codes: A61M 2210/125 : Heart
• CPC Class Codes: A61M 25/10 : Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

Disclosed is an adjustable occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device is removably carried by a deployment catheter. The device may be enlarged or reduced to facilitate optimal placement or removal. Methods are also disclosed.

Claims

1. An occlusion device for occluding a tubular body structure, comprising:

a plurality of spokes which are movable between an axial orientation and an inclined orientation;

a threaded aperture carried by the device; and

a stop surface carried by the device;

wherein a threaded core is rotatable within the aperture to cause the core to contact the stop surface and axially elongate the device.

2. An occlusion device as in claim 1, further comprising a membrane or mesh carried by the spokes.

3. An occlusion device as in claim 1, comprising at least three radially outwardly moveable spokes.

4. An implantable device, comprising:

a radially enlargeable frame having a proximal end and a distal end;

a proximally facing stop surface within the frame; and

a threaded aperture in the frame, proximally of the stop surface;

wherein distal axial advancement of a threaded core through the threaded aperture distally advances the stop surface thereby axially elongating and radially reducing the implantable device.

5. An implantable device as in claim 4, wherein the device is an occlusion device.

6. An implantable device as in claim 4, wherein the device is a filter.