Detachable balloon embolization device and method

• US 6,379,329 B1
• Filed: 06/01/2000
• Issued: 04/30/2002
• Est. Priority Date: 06/02/1999
• Status: Expired due to Term

• Current Assignee: Codman & Shurtleff Incorporated (Johnson & Johnson)
• Original Assignee: Cordis Neurovascular, Inc. (Johnson & Johnson)
• Inventors: Jones, Donald K., Naglreiter, Brett E.
• Primary Examiner(s): Nguyen, Anhtuan T.
• Application Number:
  US09/585,086
• Time in Patent Office: 698 Days
• Field of Search: 604/95.02, 604/95.03, 604/99.02, 604/101.02, 604/101.01, 604/101.03, 604/103.01, 604/103, 604/103.02, 604/103.05, 604/104, 604/913
• US Class Current: 604/99.02
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61M 2025/1054 having detachable or disposable balloons

Abstract

An endovascular aneurysm occlusion device comprising a detachable balloon assembly. The balloon assembly is comprised of an outer balloon and an inner balloon. The outer balloon is formed from a porous material. The occlusion device is expanded within an aneurysm and adhesive material is injected into and perfused through the outer balloon. The adhesive material forms a bond between the aneurysm, the outer balloon, and the inner balloon. The inner balloon is then deflated, which acts to reduce the size of the aneurysm.

Claims

1. An endovascular aneurysm occlusion device comprising:

a catheter including an outer tubular member having a proximal end, a distal end and a lumen extending therethrough, said catheter also including an inner tubular member having a proximal end, a distal end and a lumen extending therethrough, said inner tubular member being coaxially disposed within the lumen of the outer tubular member;

a balloon assembly including an outer balloon having an outer wall defining an interior region and an inner balloon having an outer wall defining an interior region, said inner balloon being disposed within the interior region of the outer balloon;

said balloon assembly also including a valve assembly, said valve assembly extending through the wall of the outer balloon and an adjacent portion of the wall of the inner balloon, said valve assembly having a passageway therethrough and a valve means disposed in the passageway, the distal end of the outer and inner tubular members of the catheter extends into the passageway, said valve means being operative to permit the passage of the catheter through the valve assembly but preventing the flow of fluid through said valve assembly when the catheter is withdrawn from said valve assembly; and

,

a hub having a first lumen and a second lumen, each lumen extending through a hub connector, said hub being mounted to the proximal end of the outer tubular member and the proximal end of the inner tubular member such that the first lumen of the hub is in fluid communication with the lumen of the outer tubular member and the second lumen of the hub is in fluid communication with the lumen of the inner tubular member.

2. An endovascular aneurysm occlusion device as described in claim 1, wherein the outer balloon is formed of a porous material.

3. A method for occluding an aneurysm by the use of an occlusion device comprising a balloon assembly which includes an outer balloon, an inner balloon, and a valve assembly, said outer balloon being formed from a porous material, said inner balloon being disposed within the outer balloon, said valve assembly extending through a wall of the inner balloon and an adjacent wall of the outer balloon, and a catheter having its distal end removably disposed within the valve assembly;

said method comprising the steps of;

positioning the balloon assembly within an aneurysm;

inflating the inner balloon such that the inner balloon makes contact with the outer balloon to thereby force the outer balloon into contact with the aneurysm;

introducing an adhesive material into a region between the inner balloon and the outer balloon thereby causing the inner balloon to become bonded to the outer balloon;

perfusing the adhesive material through the porous material of the outer balloon thereby causing the outer balloon to become bonded to the aneurysm;

deflating the inner balloon thereby causing the outer balloon to contract which, in turn, reduces the size of the aneurysm; and

,

detaching the catheter from the balloon assembly thereby causing the valve assembly to close and thereby causing the inner balloon to remain in a deflated state.