Percutaneous catheter directed collapsible medical closure device

Patent metadata

Field	Value
Publication number	US-9681861-B2
Application number	US-201313793289-A
Country	US
Kind code	B2
Filing date	Mar 11, 2013
Priority date	Mar 11, 2013
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

The present disclosure provides an improved collapsible medical closure device fabricated from a tubular wire mesh material. The collapsible medical closure device has an expanded preset configuration and an elongated collapsed reduced diameter configuration for delivery through a delivery catheter or other delivery means to a desired treatment site. The collapsible medical closure device is shaped to create short-term and long-term occlusion of an opening, such as an opening in the wall of the heart, and includes a disc shaped portion on a distal end, a cone shaped portion on a proximal end, a middle portion connecting the disc shaped portion and the cone shaped portion, and a means for attaching a delivery cable located in the middle portion. The collapsible medical closure device additionally includes a therapeutic membrane for aiding in occlusion and promoting tissue growth, as well as one or more radiopaque marker bands.

First claim

What is claimed is:

1. A collapsible medical closure device for occluding an opening in a body, the collapsible medical closure device comprising:
a proximal end and a distal end, a longitudinal axis extending between the proximal end and the distal end;
a disc shaped portion on the distal end;
a cone shaped portion having a first length along the longitudinal axis on the proximal end;
a middle portion connecting the disc shaped portion and the cone shaped portion and having a second length along the longitudinal axis less than the first length, wherein the disc shaped portion, the cone shaped portion, and the middle portion comprise a metal fabric;
a therapeutic membrane contacting at least a portion of the metal fabric; and
a single means for attaching a delivery device to the collapsible medical closure device located in the middle portion.

2. The collapsible medical closure device of claim 1 wherein the means for attaching a delivery device is a threadable member.

3. The collapsible medical closure device of claim 1 wherein the means for attaching a delivery device is a center end screw.

4. The collapsible medical closure device of claim 1 wherein the therapeutic membrane is sewn onto at least a portion of the metal fabric.

5. The collapsible medical closure device of claim 1 wherein the therapeutic membrane contacts the disc shaped portion, the cone shaped portion, and the middle portion.

6. The collapsible medical closure device of claim 1 wherein the therapeutic membrane comprises a proximal end therapeutic membrane and a distal end therapeutic membrane.

7. The collapsible medical closure device of claim 1 wherein the therapeutic membrane is a biodegradable polymer.

8. The collapsible medical closure device of claim 7 wherein the biodegradable polymer is selected from the group consisting of polyester fabric, polyester fabric coated in elastin, polyester fabric coated in collagen, collagen sponge, collagen scaffolds made from a mixture of hydrogel and collagen, and combinations thereof.

9. The collapsible medical closure device of claim 1 wherein the metal fabric comprises a metal alloy selected from the group consisting of stainless steel, nickel-titanium, and cobalt-chromium-nickel.

10. The collapsible medical closure device of claim 1 wherein the metal fabric is formed by strands having a diameter in a range of about 0.05 millimeters to about 0.127 millimeters and comprises a plurality of strands in a range of about 36 to about 144.

11. The collapsible medical closure device of claim 1 further comprising at least one radiopaque marker band.

12. The collapsible medical closure device of claim 11 wherein the at least one radiopaque marker band includes a first radiopaque marker band on the disc shaped portion.

13. The collapsible medical closure device of claim 12 wherein the at least one radiopaque marker band further includes a second radiopaque marker band located in the middle portion.

14. The collapsible medical closure device of claim 13 wherein the second radiopaque marker band surrounds the means for attaching a delivery device.

15. A collapsible medical closure device comprising:
a metal fabric comprising woven metal strands having an expanded preset configuration shaped to create an occlusion of an opening in a body, wherein the woven metal strands have a memory property whereby the collapsible medical closure device tends to return to said expanded preset configuration when unconstrained, wherein the expanded preset configuration comprises:
a proximal end and a distal end, a longitudinal axis extending between the proximal end and the distal end;
a disc shaped portion having a first diameter and a first length on distal end, the first length taken along the longitudinal axis;
a cone shaped portion having a second diameter and a second length on a proximal end, the second length taken along the longitudinal axis; and
a middle portion connecting the disc shaped portion and the cone shaped portion and having a third length taken along the longitudinal axis less than the second length, wherein the middle portion contains a single means for attaching a delivery device; and
a therapeutic membrane contacting at least a portion of the metal fabric, wherein the collapsible medical closure device is deformable through a channel in a patient's body.

16. The collapsible medical closure device of claim 15 wherein the means for attaching a delivery device is a threadable member.

Assignees

• Aga Medical Corp
• St Jude Medical Cardiology Div Inc

Inventors

• Heisel Jennifer Marie
• Schutt Kevin Joseph

Classifications

• Y10T29/49968

  Metal fusion joining · CPC title

• B21D53/00

  Making other particular articles (making wire fabrics B21F; making chains or chain parts B21L) · CPC title

• B21D39/00

  Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating ({joining mitred profiles B21D53/745; } riveting B21J; uniting components by forging or pressing to form integral members B21K25/00; welding B23K; press-fitting, force-fitting, or shrinking in general B23P11/00, B21D19/00; by adhesives F16B11/00 {; Connections as such F16L, F16B}); Tube expanders · CPC title

• A61B2017/00867

  shape memory effect · CPC title

• A61B2017/00592

  Elastic or resilient implements · CPC title