Detachable atrial appendage occlusion balloon

• US 7,713,282 B2
• Filed: 04/28/2003
• Issued: 05/11/2010
• Est. Priority Date: 11/06/1998
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed, Inc. (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): NGUYEN, TUAN VAN
• Application Number:
  US10/426,130
• Publication Number:
  US 20040044361A1
• Time in Patent Office: 2,570 Days
• Field of Search: 606190-200, 128/898, 604 9601-113
• 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 17/12136 Balloons
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 17/12195 comprising a curable material
• 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 2017/00601 Implements entirely comprised between the two sides of the opening
• 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 2017/081 Tissue approximator A61B2017/1103, A61B17/8866 take precedence
• CPC Class Codes: A61B 2017/1205 Introduction devices
• 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
• 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. A method of implanting a device in the left atrial appendage, comprising:

providing an inflation catheter having an elongate flexible body with a proximal end and a distal end, and a balloon releasably attached to the distal end;

said inflation catheter having a first inner tubular body and a second inner tubular body, the first inner tubular body being moveable with respect to the second inner tubular body between a first sealed position and a second inflation position, wherein said movement exposes or seals an inflation lumen provide on one of the tubular bodies within said balloon and wherein the inflation catheter is releasably attached to one of the tubular bodies, and axial movement of the inflation catheter moves the first inner tubular body relative to the second inner tubular body, thereby forming a two way valve that can be used for both inflation and deflation of said balloon, by operating the valve located within said balloon;

said balloon including a spherical stop to limit motion of said valve and define said second position;

said balloon has a proximal end and a distal end, and further comprises a plurality of anchors each of said plurality of anchors arranged in multiple circumferential rows along an outer surface of the balloon, that deploy with positive force thus displacing tissue in contact with said balloon and said anchors, some of said anchors pointing distally and some of said anchors pointing proximally;

positioning at least a portion of the balloon in the left atrial appendage;

inflating the balloon so that the balloon securely engages an inner surface of the left atrial appendage to displace the tissue in the LAA proximate the ostium of the LAA, thereby trapping the balloon in the LAA; and

releasing the balloon from the distal end of the inflation catheter, with the balloon remaining securely engaged with the inner surface of the left atrial appendage.