Back to results
US 6,270,490 B1Granted
Venous drainage catheter and method of use
AssigneeEmbol-X, Inc.
InventorKevin Hahnen
Life of this patent
Estimating the term…
Abstract
A venous drainage catheter comprising a cannula and a lumen, wherein the proximal end is adapted for attachment to a bypass machine and the distal end has a drainage port in fluid communication with the cannula lumen. Expanding members, having an actuating mechanism which expand the members from a collapsed condition, are disposed circumferentially about the drainage port. Methods for using the devices are also disclosed.
Claims4
A method for draining venous blood from the right atrium of a patient, comprising the steps of:
- providing a venous drainage catheter comprising a cannula having a drainage port at a distal end thereof, the drainage port in fluid communication with a lumen of the cannula, the cannula further having expanding members disposed about said drainage port and a cylindrical sheath disposed circumferentially about the expanding members;
- making an incision in an atrial appendage of the patient to provide access to the right atrium;
- inserting the cannula through the incision and into the right atrium, wherein the sheath is engaged by tissue surrounding the incision, and the expanding members slide beyond the sheath and into the right atrium, wherein the expanding members are released;
- actuating the expanding members to an expanded condition to hold tissue away from the drainage port;
- and
- withdrawing venous blood from the right atrium.
3 more elements
Dependencies are inferred from the claim text.