Back to results
US 6,575,971 B2Granted
Cardiac valve leaflet stapler device and methods thereof
AssigneeQuantum Cor, Inc.
InventorsWallace N. Hauck, Samuel Victor Lichtenstein, Hosheng Tu
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeQuantum Cor, Inc.
InventorsWallace N. Hauck, Samuel Victor Lichtenstein, Hosheng Tu
Estimating the term…
A medical device system comprising a guide catheter and a leaflet fastening applicator, the guide catheter having suitable dimensions for deployment and insertion percutaneously into a human heart in a vicinity of a heart valve, the leaflet fastening applicator having a size allowing insertion through the guide catheter and being capable of holding portions of opposing heart valve leaflets, wherein the fastening applicator comprises a pair of grasping-electrodes adapted for holding and engaging the portions of opposing heart valve leaflets together and for applying energy to fasten the portions, in which heart valve leaflets can be captured and securely fastened, thereby improving coaptation of the leaflets and improving competence of the valve.
A device system comprising a guide catheter and a leaflet fastening applicator, said guide catheter having suitable dimensions for deployment and insertion into a human heart in a vicinity of a heart valve, said leaflet fastening applicator having a size allowing insertion through said guide catheter and being capable of holding portions of opposing heart valve leaflets, wherein said fastening applicator comprises a pair of grasping-electrodes adapted for holding and engaging said portions of opposing heart valve leaflets together and for applying radiofrequency energy to fasten said portions, wherein a first of said grasping-electrodes comprises a plurality of spikes and a second of said grasping-electrodes comprises a plurality of recesses configured to receivable match and end the spikes of said first grasping-electrode, wherein said catheter comprises at least a gripper, said gripper having a suitable opening sized and configured for applying vacuum suction to releasably grip one of said heart valve leaflets.
A device system comprising:
A method for fastening a first edge of a first valve leaflet to a second edge of an opposite second valve leaflet of heart valve leaflets in a patient, the method comprising:
Dependencies are inferred from the claim text.