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DEVICES, METHODS AND SYSTEMS FOR ESTABLISHING SUPPLEMENTAL BLOOD FLOW IN THE CIRCULATORY SYSTEM

  • US 20080076959A1
  • Filed: 08/29/2007
  • Published: 03/27/2008
  • Est. Priority Date: 08/30/2006
  • Status: Active Grant
First Claim
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1. A blood circulation assist system for increasing blood flow:

  • between a chamber in a heart of a patient and a remote location in the circulatory system of the patient, the system comprising;

    an inflow cannula having a lumen; and

    an insertion device configured to be received within the lumen of the inflow cannula and to facilitate insertion of a portion of the inflow cannula into the chamber of the heart, wherein the insertion device comprises;

    a shaft having a distal end portion, a proximal end portion and a plurality of lumens formed therein, a first one of the lumens being configured to receive a guidewire therein and a second one of the lumens being configured to receive a pressurized fluid therein;

    a tip connected to the distal end portion of the shaft, the tip being configured for insertion into the chamber of the heart, the tip having a hollow interior communicating with the first one of the lumens of the shaft; and

    an inflatable member coupled to the distal end portion of the shaft and comprising a hollow interior in fluid communication with the second one of the lumens of the shaft, the inflatable member being movable between a first, deflated configuration wherein the inflatable member is disengaged with the inflow cannula and a second, inflated configuration wherein the insertion device is releasably secured to the inflow cannula.

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