Patches and collars for medical applications and methods of use

• US 6,726,696 B1
• Filed: 06/28/2002
• Issued: 04/27/2004
• Est. Priority Date: 04/24/2001
• Status: Expired due to Fees

• Current Assignee: Bioventrix, Inc.
• Original Assignee: Advanced Catheter Engineering, Inc.
• Inventors: Houser, Russell A., Hare, William D.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US10/183,396
• Time in Patent Office: 669 Days
• Field of Search: 606/151, 606/213, 602/48, 602/76
• US Class Current: 606/151
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• 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 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/00654 entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00862 elastic or resilient
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/2481 Devices outside the heart wall, e.g. bags, strips or bands
• CPC Class Codes: A61F 2002/2484 Delivery devices therefor

Abstract

The invention relates to applying a patch to a tissue surface within a mammalian body that includes retaining the patch to a deployment device, advancing the deployment device to the tissue surface, pressing the patch against the tissue surface, and manipulating the deployment device to separate the deployment device from the patch and leave the patch against the tissue surface. The patch includes at least one layer of a biocompatible polymer, at least one layer of a biocompatible superelastic/shape memory material, and at least one layer of a biocompatible adherent material. The deployment device includes a handle section and a deployment section, and the deployment section is configured to retain the patch for delivery of the patch to the tissue surface. The patch may include one or more arms, a base, and barbs extending from the arms, and advancing the deployment device to the tissue surface may include advancing the deployment device to the tissue surface of the heart for treatment of, for example, congestive heart failure.

Claims

1. A patch for placing against a tissue within a mammalian, the patch comprising:

at least one layer of a biocompatible polymer;

at least one layer of a biocompatible superelastic/shape memory material; and

at least one layer of a biocompatible adherent material.

2. The patch of claim 1, wherein the superelastic/shape memory material comprises a nickel titanium alloy.

3. The patch of claim 2, wherein the alloy comprises Nitinol.

4. The patch of claim 1, wherein the superelastic/shape memory material has a curved configuration in a resting state.

5. The patch of claim 1, further comprising barbs extending from the superelastic/shape memory material.

6. The patch of claim 5, further comprising a power source connected to the patch and configured to provide power to the barbs.

7. The patch of claim 1, wherein the layer of superelastic/shape memory material is encapsulated by the polymer.

8. The patch of claim 1, wherein the patch is intended to close an opening in the vessel.

9. The patch of claim 1, wherein the patch comprises multiple arms and a base configured to form a concave shape.

10. The patch of claim 9, further comprising one or more barbs extending from the arms.

11. The patch of claim 1, further comprising a deployment device configured to deploy the patch, the deployment device comprising a handle and a deployment section, the deployment section configured to retain the patch for delivery of the patch to the vessel.

12. The patch of claim 11, wherein the deployment section includes a pair of openable jaws.

13. The patch of claim 11, wherein the deployment section includes a surface configured to apply a vacuum.

14. A method of applying a patch to a tissue surface within a mammalian body, the method comprising:

retaining the patch to a deployment device;

advancing the deployment device to the tissue surface;

pressing the patch against the tissue surface; and

manipulating the deployment device to separate the deployment device from the patch and leave the patch against the tissue surface,

wherein the patch comprises at least one layer of a biocompatible polymer, at least one layer of a biocompatible superelastic/shape memory material; and

at least one layer of a biocompatible adherent material, and

the deployment device comprises a handle section and a deployment section, the deployment section configured to retain the patch for delivery of the patch to the tissue surface.

15. The method of claim 14, wherein retaining the patch to the deployment device comprises using an adhesive to retain the patch to the deployment device.

16. The method of claim 14, wherein retaining the patch to the deployment device comprises applying vacuum to the patch.

17. The method of claim 14, wherein manipulating the deployment device to separate the deployment device from the patch comprises moving the deployment device relative to the tissue surface to which the patch is applied.

18. The method of claim 14, wherein manipulating the deployment device to separate the deployment device from the patch comprises advancing a plunger within the deployment device.

19. The method of claim 14, wherein manipulating the deployment device to separate the deployment device from the patch comprises opening a pair of jaws in the deployment section.

20. The method of claim 14, wherein the patch comprises one or more arms, a base, and barbs extending from the arms, and advancing the deployment device to the tissue surface comprises advancing the deployment device to the tissue surface of the heart.