Edwards Lifesciences Corporation

Don Huy Tran

Michael G Valdez

Daniel James Murray

Lillian Grace Myers

Cristobal R Hernandez

Linda Thai

Andrew Charles May

Eric Jason Noda

Hien T Nguyen

Trizzie Trang Dang

A puncture needle can comprise an elongate portion, a puncture component associated with a distal end of the elongate portion, and a spacer associated with a distal portion of the elongate portion, where the spacer can be configured to contact a wall of the delivery catheter lumen to prevent contact between the puncture component and the wall. A puncture needle can comprise an elongate portion and a puncture component associated with a distal end of the elongate portion, where the puncture component comprises a blade edge on a distal edge, and where the puncture component is configured to be advanceable through a lumen of a delivery catheter without the blade edge sticking to a wall of the lumen.

Puncture needles

A blood flow pathway is formed between a left atrium and a coronary sinus for relieving elevated left atrial pressure. The treatment method includes providing first and second delivery catheters, wherein a medical device is carried by the second delivery catheter. A side outlet opening of the first delivery catheter is positioned within the coronary sinus and oriented toward a left atrium. An anchor on the first delivery catheter contacts an inner surface of the coronary sinus for stabilization. A distal portion of the second delivery catheter is advanced through the side outlet opening. A puncture component is then passed through a target wall portion for creating the blood flow pathway. The medical device is positioned in the opening.

Method of reducing left atrial pressure

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Westminster, CA, United States of America

Don Huy Tran