Methods for mounting a prosthesis onto a delivery device

• US 8,745,845 B2
• Filed: 11/24/2010
• Issued: 06/10/2014
• Est. Priority Date: 11/07/2006
• Status: Active Grant

• Current Assignee: Corvia Medical, Inc.
• Original Assignee: DC Devices Inc.
• Inventors: Finch, Matthew J., Forcucci, Stephen J., McNamara, Edward, Sugimoto, Hiroatsu
• Primary Examiner(s): TRINH, MINH N
• Application Number:
  US12/954,521
• Publication Number:
  US 20110295182A1
• Time in Patent Office: 1,294 Days
• Field of Search: 295/921, 295/94, 623/1.15, 623 124- 126, 623/2.11, 623/2.38, 128/898, 606/86.A, 606 79- 85
• US Class Current: 29/592.1
• 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 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• 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: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 6/4423 related to hygiene or sterilisation
• CPC Class Codes: A61B 8/0841 for locating instruments
• 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: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49005 Acoustic transducer
• CPC Class Codes: Y10T 29/53843 Tube, sleeve, or ferrule inserting or removing
• CPC Class Codes: Y10T 29/53909 Means comprising hand manipulatable tool
• CPC Class Codes: Y10T 29/53913 Aligner or center

Abstract

The present disclosure relates to devices and methods for implanting a prosthesis into a heart of a mammal, such as a person. The disclosure includes a prosthesis that acts as a pressure vent between the left and right atria of the heart. The disclosure also includes a mounting tool for mounting the prosthesis onto a loading tool, the loading tool useful for loading the prosthesis onto a device for delivering the prosthesis into the patient'"'"'s heart. Control devices and methods for using these devices are also disclosed. The intracardiac pressure vents disclosed allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms. The devices also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombi or other embolic material from entering arterial circulation.

Claims

1. A method of mounting a prosthesis onto a delivery device, the method comprising:

mounting a lower disc between a top flange and a bottom flange of the prosthesis;

mounting an upper disc between the lower disc and the top flange of the prosthesis, wherein the top and bottom flanges of the prosthesis are separated by mounting the upper and lower discs onto the prosthesis;

placing the mounted prosthesis onto a loading tool;

compressing the top flange from an enlarged diameter to a smaller diameter;

connecting the prosthesis to a control wire; and

placing the prosthesis into the delivery device.

2. The method of claim 1, wherein the step of placing the prosthesis into the delivery device is accomplished by pulling the prosthesis into a sheath of a catheter or fitting the sheath over the prosthesis.

3. The method of claim 1, wherein the prosthesis is a device for implantation into an atrial septum of a patient, the device comprising a left atrium flange, and right atrium flange and a central septum.

4. The method of claim 1, wherein the top flange is compressed by raising doors on the loading tool.

5. The method of claim 1, further comprising closing a set of separating doors in place.

6. The method of claim 2, further comprising placing a reinforcing loading tube over the sheath before the step of connecting.

7. The method of claim 1, further comprising placing a compression sphere within the right atrium flange before the step of connecting.