Ventricular Cuff
First Claim
1. A ventricular cuff for coupling to a heart of a patient in an attachment direction and facilitating engagement of a heart pump to the heart, the ventricular cuff comprising:
- an apical ring defining an opening for receiving an inlet cannula of a heart pump, the apical ring having a heart pump engaging perimeter and a sewing ring engaging perimeter opposite the heart pump engaging perimeter;
a sewing ring coupled with the sewing ring engaging perimeter of the apical ring, the sewing ring including a heart tissue engaging surface and a top surface opposite the heart tissue engaging surface;
a rigid frame backing the sewing ring along the top surface of the sewing ring, the rigid frame comprising a plurality of struts extending outwardly from the opening defined by the apical ring and toward an outer perimeter of the sewing ring;
wherein the plurality of struts of the rigid frame are configured to maintain a space between the top surface of the sewing ring and the heart pump engaging perimeter of the apical ring during implantation of the ventricular cuff and the heart pump to the heart of the patient.
3 Assignments
0 Petitions
Accused Products
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.
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Citations
56 Claims
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1. A ventricular cuff for coupling to a heart of a patient in an attachment direction and facilitating engagement of a heart pump to the heart, the ventricular cuff comprising:
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an apical ring defining an opening for receiving an inlet cannula of a heart pump, the apical ring having a heart pump engaging perimeter and a sewing ring engaging perimeter opposite the heart pump engaging perimeter; a sewing ring coupled with the sewing ring engaging perimeter of the apical ring, the sewing ring including a heart tissue engaging surface and a top surface opposite the heart tissue engaging surface; a rigid frame backing the sewing ring along the top surface of the sewing ring, the rigid frame comprising a plurality of struts extending outwardly from the opening defined by the apical ring and toward an outer perimeter of the sewing ring; wherein the plurality of struts of the rigid frame are configured to maintain a space between the top surface of the sewing ring and the heart pump engaging perimeter of the apical ring during implantation of the ventricular cuff and the heart pump to the heart of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20-42. -42. (canceled)
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43. A ventricular cuff for coupling with a heart of a patient in an attachment direction, the ventricular cuff comprising:
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an insert ring comprising metal material having cylindrical portion defining a central opening; a single sewing ring comprising a felt material disposed about the insert ring, the sewing ring including a heart tissue engaging surface and a top surface opposite the heart tissue engaging surface; an elastomer coupling the sewing ring to the insert ring at an interface between the insert ring and the sewing ring and forming a fluid tight engagement between the sewing ring and the insert ring; a rigid frame secured to the insert ring and including a plurality of struts extending outwardly from the central opening, the rigid frame secured to the insert ring such that the struts of the rigid frame are urged against the sewing ring and extend toward an outer perimeter of the sewing ring, the struts supporting the sewing ring so as to resist deformation of the sewing ring in the attachment direction during attachment of the ventricular cuff to a heart of a patient. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56-71. -71. (canceled)
Specification