Ventricular cuff

• US 9,981,077 B2
• Filed: 11/04/2015
• Issued: 05/29/2018
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories)
• Original Assignee: TC1 LLC (Abbott Laboratories)
• Inventors: Callaway, Justin Aron, Pierce, Cori G., Duhamel, Julien, Bourque, Kevin
• Primary Examiner(s): Prone, Christopher D
• Assistant Examiner(s): Diop, Rokhaya
• Application Number:
  US14/932,699
• Publication Number:
  US 20160051738A1
• Time in Patent Office: 937 Days
• 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 60/232 Centrifugal pumps
• CPC Class Codes: A61M 60/857 Implantable blood tubes
• CPC Class Codes: A61M 60/861 Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body
• CPC Class Codes: A61M 60/863 Apex rings

Abstract

In one general aspect, a cuff for attachment to a heart includes an attachment component configured to engage a blood pump to attach the cuff to the blood pump and a sewing ring for attachment to the heart. The sewing ring is coupled to the attachment component, and the attachment component and the sewing ring each define a central opening configured to admit an inflow cannula of a blood pump. The sewing ring comprises a member that provides rigidity to flatten a portion of a myocardium of the heart when the cuff is attached to the heart.

Claims

1. A cuff for attachment to a heart, the cuff comprising:

an attachment component configured to engage a blood pump to attach the cuff to the blood pump; and

a sewing ring for attachment to the heart, the sewing ring being coupled to the attachment component, the attachment component and the sewing ring each defining a central opening configured to admit an inflow cannula of a blood pump, wherein;

the sewing ring comprises two or more disc-shaped layers of fabric,

the sewing ring comprises an insert disposed between the disc-shaped layers, the insert being more rigid than the disc-shaped layers,

the insert has an inner perimeter, an outer perimeter, and a plurality of extensions that extend radially inward between the outer perimeter and the inner perimeter, and

the sewing ring comprises a member that provides rigidity to flatten a portion of a myocardium of the heart when the cuff is attached to the heart.

2. The cuff of claim 1, wherein the two or more disc-shaped layers are formed of a felt, a mesh, or a woven material.

3. The cuff of claim 1, wherein the two or more disc-shaped layers are formed of polytetrafluoroethylene, polyester, or polyethylene terephthalate.

4. The cuff of claim 1, wherein the two or more disc-shaped layers are formed of polytetrafluoroethylene felt.

5. The cuff of claim 1, wherein the two or more disc-shaped layers are attached to each other by sutures or an adhesive.

6. The cuff of claim 1, wherein each of the two or more disc-shaped layers has a thickness between approximately 1.3 millimeters and 2.3 millimeters, and a maximum water permeability of between approximately 450 ml/cm²/min and 650 ml/cm²/min.

7. The cuff of claim 1, wherein the insert is formed of polyether ether ketone, titanium, a titanium alloy, a cobalt chromium alloy, or a shape-memory polymer.

8. The cuff of claim 1, wherein the insert is covered in silicone.

9. The cuff of claim 1, wherein the insert is a lattice or web that defines a central opening of the insert that admits the inflow cannula of the blood pump.

10. The cuff of claim 1, wherein the insert is formed of a resilient material.

11. The cuff of claim 1, wherein the insert is formed of a nickel-titanium alloy.

12. A cuff for attachment to a heart, the cuff comprising:

an attachment component configured to engage a blood pump to attach the cuff to the blood pump; and

a sewing ring for attachment to the heart, the sewing ring being coupled to the attachment component, the attachment component and the sewing ring each defining a central opening configured to admit an inflow cannula of a blood pump, wherein;

the sewing ring comprises two or more disc-shaped layers of fabric,

the sewing ring comprises an insert disposed between the disc-shaped layers, the insert being more rigid than the disc-shaped layers,

the insert is formed of a nickel-titanium alloy, and

the sewing ring comprises a member that provides rigidity to flatten a portion of a myocardium of the heart when the cuff is attached to the heart.

13. A cuff for attachment to a heart, the cuff comprising:

an attachment component configured to engage a blood pump to attach the cuff to the blood pump; and

a sewing ring for attachment to the heart, the sewing ring being coupled to the attachment component, the attachment component and the sewing ring each defining a central opening configured to admit an inflow cannula of a blood pump, wherein;

the sewing ring comprises two or more disc-shaped layers of fabric,

the sewing ring comprises an insert disposed between the disc-shaped layers, the insert being more rigid than the disc-shaped layers,

the insert defines a plurality of windows that define areas configured to receive sutures such that the sutures extend through the insert without penetrating material that forms the insert, and

the sewing ring comprises a member that provides rigidity to flatten a portion of a myocardium of the heart when the cuff is attached to the heart.