Anchored mounting ring

• US 10,279,092 B2
• Filed: 10/21/2014
• Issued: 05/07/2019
• Est. Priority Date: 10/22/2013
• Status: Active Grant

• Current Assignee: Heartware,Inc. (Medtronic Plc)
• Original Assignee: Heartware,Inc. (Medtronic Plc)
• Inventors: Andrus, Lance Lynn
• Primary Examiner(s): Wu, Eugene T
• Application Number:
  US14/519,850
• Publication Number:
  US 20150112120A1
• Time in Patent Office: 1,659 Days
• CPC Class Codes: A61B 2017/3425 for internal organs, e.g. heart ports
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61M 2205/04 implanted
• CPC Class Codes: A61M 2210/125 Heart
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/178 drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
• CPC Class Codes: A61M 60/863 Apex rings
• CPC Class Codes: A61M 60/865 Devices for guiding or inserting pumps or pumping devices into the patient's body

Abstract

A mounting ring for a ventricular assist device or other device used in the heart includes a plate adapted to be secured to the exterior of the heart by rigid anchors such as hook, pin, or screw. When hooks are used, they can be pivotally mounted to the plate so that the hooks can rotate from retracted positions to advanced positions. A tool can be included in a mounting ring kit to move the hooks from their retracted positions to their advanced positions so that the hooks secure the plate to the heart. Preferably, all of the hooks are advanced simultaneously. The VAD or other device is then secured to the plate. The plate can be mounted to the heart in less time than required to install a traditional mounting ring by suturing to the heart.

Claims

1. A mounting ring kit comprising:

a plate having a proximal side, a distal side adapted to be placed against an exterior surface of a heart, an opening extending through the plate from the proximal side to the distal side, and a plurality of passageways extending through the plate from the proximal side to the distal side;

a plurality of rigid anchors disposed at least partially within the plurality of passageways;

a sealing ring disposed against the distal side of the plate and extending around the opening;

the plurality of rigid anchors being movable from a retracted position towards an advanced position in which the plurality of rigid anchors project from the distal side of the plate; and

an adaptor coupled to the proximal side of the plate and extending around the opening to overlie the plurality of rigid anchors in the advanced position, the adaptor including a proximal side, a distal side opposite the proximal side, and a midportion therebetween, the midportion having an annular wall defining an aperture including a gimbal disposed therein and a rim extending transverse to the annular wall, surrounding the aperture, and defining a shelf; and

a clamp disposed on the shelf of the rim.

2. The mounting ring kit of claim 1, further comprising a plurality of housings on the proximal side of the plate aligned with the plurality of passageways.

3. The mounting ring kit of claim 2, wherein the opening defines a proximal to-distal axis, the passageways extend through the housings and are oblique to the axis.

4. The mounting ring kit of claim 1, wherein the opening defines a proximal to-distal axis and wherein the anchors are mounted to the plate for pivoting motion about rotational axes transverse to the proximal-to-distal axis.

5. The mounting ring kit of claim 4, wherein the rotational axes are tangent to a circle encircling the proximal-to-distal axis.

6. The mounting ring kit of claim 1, further comprising a locking element to lock the anchors in position.

7. The mounting ring kit of claim 1, wherein each of the plurality of rigid anchors is one of a screw, hook, or pin.

8. The mounting ring kit of claim 1, wherein the anchors project from the proximal side of the plate when the anchors are in the retracted position.

9. The mounting ring kit of claim 1, wherein the anchors are adapted to pull tissue of the heart to the distal side of the plate.

10. The mounting ring kit of claim 1, wherein the sealing ring is made of a compressible material that is configured to provide a seal between the exterior surface of the heart and the plate.

11. The mounting ring kit of claim 1, wherein the annular wall is detachable from the plate.

12. The mounting ring kit of claim 1, further comprising a tool for moving the anchors from the retracted position to the advanced position.

13. A kit comprising:

a plate having a proximal side, a distal side adapted to be placed against an exterior surface of a heart, an opening extending through the plate from the proximal side to the distal side, and a plurality of passageways extending through the plate from the proximal side to the distal side;

a plurality of rigid anchors disposed at least partially within the plurality of passageways;

a sealing ring disposed against the distal side of the plate and extending around the opening, the plurality of rigid anchors movable from a retracted position towards an advanced position in which the plurality of rigid anchors project from the distal side of the plate;

an adaptor coupled to the proximal side of the plate and extending around the opening to overlie the plurality of rigid anchors in the advanced position, the adaptor including a proximal side, a distal side opposite the proximal side, and a midportion therebetween, the midportion having an annular wall defining an aperture including a gimbal disposed therein and a rim extending transverse to the annular wall, surrounding the aperture, and defining a shelf;

a clamp disposed on the shelf of the rim; and

a ventricular assist device, wherein the plate provides a mount for securing the ventricular assist device.