METHODS AND DEVICES FOR INTRA-ATRIAL SHUNTS HAVING ADJUSTABLE SIZES

• US 20130178784A1
• Filed: 12/24/2012
• Published: 07/11/2013
• Est. Priority Date: 12/22/2011
• Status: Abandoned Application

• Current Assignee: DC Devices Inc.
• Original Assignee: DC Devices Inc.
• Inventors: McNamara, Edward, Sutherland, Michael W., Finch, Matthew J., Forcucci, Stephen J.
• Application Number:
  US13/726,429
• Publication Number:
  US 20130178784A1
• Time in Patent Office: Days
• US Class Current: 604/9
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00584 Clips
• 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 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202

Abstract

Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter shunt portion which can be manually adjusted in vivo. Methods are provided for adjusting the flow rate of the devices in vivo.

Claims

1. An expandable device adapted for percutaneous delivery into a membrane of a patient'"'"'s heart, the device comprising:

first and second anchors adapted to contact, respectively, first and second surfaces of the membrane; and

a stent having a longitudinal axis and being connected to the first and second anchors, the stent comprising an outer cylindrical body comprising a superelastic material and an inner cylindrical body disposed within and connected to the outer cylindrical body and comprising a plastically deformable material, the stent being adapted to permit blood to flow across the membrane at a first rate;

wherein the inner cylindrical body is adapted to be retainably radially expanded upon the application of an radially-outward directed force relative to the stent'"'"'s longitudinal axis so as to permit blood to flow across the membrane at a second rate that is different from the first rate.

2. The device of claim 1, wherein the stent further comprises a cylindrical liner disposed within and attached to the inner cylindrical body.

3. The device of claim 1, wherein the outer cylindrical body has hooks and the hooks connect the outer cylindrical body to the inner cylindrical body.

4. The device of claim 1, wherein the plastically deformable material is stainless steel.

5. The device of claim 1, wherein the superelastic material is nitinol.

6. The device of claim 1 wherein each of the first and second anchors comprises a plurality of segments.

7. The device of claim 1 wherein the first anchor, the second anchor, and the shunt are integrally connected.