Ventricular cuff
First Claim
1. An implantable system comprising:
- a ventricular assist device (VAD) comprising an inlet cannula;
a cuff for attachment to a heart and defining an opening for the inlet cannula, the cuff defining an outward facing circumferential groove, the cuff including a plurality of ridges disposed at least partially within the outward facing circumferential groove; and
a latching mechanism attached to the VAD and reconfigurable between an unlatched configuration in which the latching mechanism accommodates insertion of the inlet cannula into the opening and a latched configuration in which the latching mechanism is engaged with the cuff to restrain the position of the inlet cannula relative to the cuff and engaged with at least one of the plurality of ridges to block rotation of the VAD relative to the cuff,wherein the latching mechanism comprises a clip that is repositionable relative to the inlet cannula from an unlocked position to a locked position, the clip being in the unlocked position when the latching mechanism is in the unlatched configuration, the clip being in the locked position when the latching mechanism is in the latched configuration, the clip including two arms that are engaged with the at least one of the plurality of ridges when the clip is in the locked position.
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Accused Products
Abstract
An implantable system includes a ventricular assist device (VAD), a cuff for attachment to a heart, and a latching mechanism attached to the VAD. The VAD includes an inlet cannula. The cuff defines an outward facing circumferential groove and an opening for the inlet cannula. The cuff includes a plurality of ridges disposed at least partially within the outward facing circumferential groove. The latching mechanism is reconfigurable between an unlatched configuration in which the latching mechanism accommodates insertion of the inlet cannula into the opening and a latched configuration in which the latching mechanism is engaged with the cuff to restrain the position of the inlet cannula relative to the cuff and engaged with at least one of the plurality of ridges to block rotation of the VAD relative to the cuff.
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Citations
19 Claims
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1. An implantable system comprising:
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a ventricular assist device (VAD) comprising an inlet cannula; a cuff for attachment to a heart and defining an opening for the inlet cannula, the cuff defining an outward facing circumferential groove, the cuff including a plurality of ridges disposed at least partially within the outward facing circumferential groove; and a latching mechanism attached to the VAD and reconfigurable between an unlatched configuration in which the latching mechanism accommodates insertion of the inlet cannula into the opening and a latched configuration in which the latching mechanism is engaged with the cuff to restrain the position of the inlet cannula relative to the cuff and engaged with at least one of the plurality of ridges to block rotation of the VAD relative to the cuff, wherein the latching mechanism comprises a clip that is repositionable relative to the inlet cannula from an unlocked position to a locked position, the clip being in the unlocked position when the latching mechanism is in the unlatched configuration, the clip being in the locked position when the latching mechanism is in the latched configuration, the clip including two arms that are engaged with the at least one of the plurality of ridges when the clip is in the locked position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable system comprising:
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a ventricular assist device (VAD) comprising an inlet cannula; a cuff for attachment to a heart and defining an opening for the inlet cannula, the cuff defining an outward facing circumferential groove, the cuff including a plurality of ridges disposed at least partially within the outward facing circumferential groove, wherein the cuff comprises; an annular fastening member extending around the opening and adapted to be attached to the heart; a linking member coupled to the annular fastening member and extending around the opening; and an attachment member coupled to the linking member and extending around the opening; and a latching mechanism attached to the VAD and reconfigurable between an unlatched configuration in which the latching mechanism accommodates insertion of the inlet cannula into the opening and a latched configuration in which the latching mechanism is engaged with the cuff to restrain the position of the inlet cannula relative to the cuff and engaged with at least one of the plurality of ridges to block rotation of the VAD relative to the cuff. - View Dependent Claims (15, 16, 17)
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18. An implantable system comprising:
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a ventricular assist device (VAD) comprising an inlet cannula; a cuff for attachment to a heart, the cuff defining an outward facing circumferential groove, the cuff comprising an attachment member comprising a cylindrical portion and a circumferential flange, the cylindrical portion defining an opening for the inlet cannula, the circumferential flange extending away from the opening from an end of the cylindrical portion, the attachment member defining ridges disposed at least partially within the outward facing circumferential groove, the cylindrical portion separating the outward facing circumferential groove from the opening; and a latching mechanism attached to the VAD and reconfigurable between an unlatched configuration in which the latching mechanism accommodates insertion of the inlet cannula into the opening and a latched configuration in which the latching mechanism is engaged with the cuff to restrain the position of the inlet cannula relative to the cuff and engaged with at least one of the ridges to block rotation of the VAD relative to the cuff. - View Dependent Claims (19)
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Specification