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Laser ablation systems
The first step in a laser ablation procedure involves inserting a thin fiber into the affected vein. The device features a narrow, steerable sheath with an atraumatic tip. The thin fiber delivers pulsed laser heat to the diseased vein's wall, causing it to close and eliminate venous reflux at its source. Once the catheter has been withdrawn, the energy is released into the surrounding tissue, destroying the abnormal vein. Once the catheter has been withdrawn, a local anesthetic is injected around the abnormal vein and the patient is awake and comfortable. No sutures are needed to close the opening in the skin, and the procedure is usually complete within an hour.
To understand the process, a laser ablation catheter must be able to pass through many different types of vessels. It is important to understand which vessels can be treated by a laser ablation, as some are harder to access than others. The procedure is also effective for treating arteriovenous fistulas. However, it is best used on the superficial veins of the groin, which are more likely to be treated.
Another advantage of a laser ablation is that it can be used to target multiple veins at once. This technology is effective for treating superficial veins and can also help treat underlying varicose veins. The procedure is safe and requires no anesthetics. It is also applicable for preventing thrombosis. It is safe for patients and can be performed by a surgeon with minimal risks and with little recovery time.
A mandrel is another important part of a laser ablation catheter. The proximal end of the mandrel extends beyond the proximal end of the laser catheter. The bend in the mandrel allows the distal tip to move off the central axis. A light source delivers laser energy to the optical fibers to cause heat in the targeted area. The heat creates a thermal reaction, which makes the target tissue vulnerable to damage.
In a recent study, a quadripolar catheter was used to stimulate the phrenic nerve during an ablation. The balloon catheter was inflated until it blocked each vein. An endoscopic and radiological image is used to confirm antral anatomy. The laser beam is directed as close as possible to the antrum. The energy applied is adjusted depending on the extent of tissue visualized and the presence of blood trapped by the balloon.
The global market for electrophysiology devices includes a broad range of devices and accessories for the treatment of atrial fibrillation. During this procedure, a small electrical current is passed through the catheter, and it sends electric signals to the heart. The energy from the beam breaks the chemical bonds and vaporizes the material. In contrast, thermal energy is not absorbed along the edges of the heart, and minimal thermal damage is caused during an ablation procedure.