Implantation of a transapical ventricular assist device and kit for same
A method of implanting a blood pump in a heart of a mammalian subject includes maintaining a temporary plug in an inlet opening of a pump having a pump body and an outlet cannula projecting from the pump body, advancing the pump into a ventricle of the heart through a hole in a wall of the heart so that the inlet of the pump is disposed within the ventricle and the outlet cannula extends through a valve of the heart into an artery, and then withdrawing the temporary plug from the inlet of the pump.
1. A pump installation kit, comprising:
a pump including a pump body having an interior and an inlet communicating with the interior, a pumping element mounted within the interior, and an outlet cannula communicating with the interior of the pump body, the pump being adapted for mounting with the pump body and inlet disposed within a ventricle of a heart; and
a temporary plug adapted for releasable, sealing engagement in the inlet.
2. The kit of claim 1 , further comprising a securement ring adapted for mounting to the outside of the heart, and a pedestal being adapted for mounting to the securement ring and being mechanically coupled to the pump, the pedestal having a channel having proximal and distal ends, the distal end of the channel communicating with the ventricle and the proximal end of the channel being disposed outside of the heart when the pedestal is mounted to the securement ring.
3. The kit of claim 2 , further comprising an elongated element mechanically connected to the temporary plug, the elongated element extending through the channel when the temporary plug is engaged in the inlet, the temporary plug being adapted to pass out of the heart through the channel after the temporary plug is disengaged from the inlet port.
4. The kit of claim 3 , wherein the temporary plug has an expanded condition and a collapsed condition, and the temporary plug is adapted to pass out through the channel in the collapsed condition.
5. The kit of claim 3 , wherein the elongated element is a catheter having an inflation lumen and the temporary plug includes a balloon communicating with the inflation lumen.
6. The kit of claim 3 , wherein the elongated element is a catheter having a fluid lumen, the fluid lumen communicating with the interior of the pump when the temporary plug is engaged in the inlet port.
7. The kit of claim 6 , further comprising a pressure measuring instrument connectable to the fluid lumen.
8. The kit of claim 6 , further comprising a closure adapted to seal the channel in the pedestal.
9. The kit of claim 8 , wherein the closure includes a screw adapted to threadedly engage the channel.
10. The kit of claim 3 , further comprising a resilient seal disposed within the channel, the resilient seal sealingly engaging the elongated element and the pedestal when the elongated element is disposed within the channel.
11. The kit of claim 10 , wherein the resilient seal is a one-way valve adapted to prevent blood flow from the proximal end of the channel when the elongated element is removed therefrom.