Description

The DLP Left Vent Cannula, also known as the DLP Left Heart Vent Catheter, is an essential medical device designed for use in cardiac surgery. Its primary function is to effectively vent the left ventricle during cardiopulmonary bypass (CPB), ensuring a clearer operative field and minimizing the risk of air embolism and ventricular over-distention.

Key Features

• Y-Shaped Design: The cannula features a Y-shaped design with one limb dedicated to infusions, primarily for cardioplegia, and the other for venting air and blood.
• Material: Constructed from durable PVC (polyvinyl chloride).
• Size: Measures 10 French (3.3 mm) in diameter.
• Length: Overall length of 15 inches (38.1 cm).
• Tip Configuration: Equipped with 9 holes at the tip to facilitate effective venting.

Placement and Use

Typically, the cannula is inserted into the anterior wall of the ascending aorta. Proper placement is crucial, as it allows sufficient space for other surgical procedures such as aortotomy or proximal anastomoses of vein grafts. The insertion should be performed while the aorta is under full or near-full pressure, with the needle aimed into the lumen and away from the side walls to minimize the risk of aortic injury.

Risk Management

Improper insertion can lead to complications such as partial thickness injuries or, in rare cases, aortic dissection. Therefore, careful handling and precise placement are imperative to avoid such risks.

Versatility

The DLP Left Vent Cannula is available in models suitable for venting via the left ventricle, pulmonary artery, or aortic root, and is offered in both PVC and silicone materials. This versatility makes it a valuable tool in various cardiac surgical scenarios, particularly those involving cardiopulmonary bypass procedures.