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Systems and methods for transeptal cardiac procedures, including tissue sealing members associated methodsSystems and methods for transeptal cardiac procedures, including tissue sealing members associated methods description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090118726, Systems and methods for transeptal cardiac procedures, including tissue sealing members associated methods. Brief Patent Description - Full Patent Description - Patent Application Claims
The present application claims priority to U.S. Provisional Application No. 60/977,837, filed Oct. 5, 2007 and incorporated herein by reference. The present disclosure is directed generally to systems and methods for transeptal cardiac procedures, including separable guidewires, tissue penetrating members, and tissue sealing members. The human heart is a complex organ that requires reliable, fluid-tight seals to prevent de-oxygenated blood and other constituents received from the body\'s tissues from mixing with re-oxygenated blood delivered to the body\'s tissues. The right atrium 101 and the left atrium 102 are separated by an interatrial septum 106. As shown in In some infants, the primum 107 never completely seals with the secundum 108, as shown in cross-sectional view in Traditionally, open chest surgery was required to suture or ligate a PFO 113. However, these procedures carry high attendant risks, such as postoperative infection, long patient recovery, and significant patient discomfort and trauma. Accordingly, less invasive techniques have been developed. Most such techniques include using transcatheter implantation of various mechanical devices to close the PFO 113. Such devices include the Cardia® PFO Closure Device, Amplatzer® PFO Occluder, and CardioSEAL® Septal Occlusion Device. One potential drawback with these devices is that they may not be well suited for the long, tunnel-like shape of the PFO 113. As a result, the implanted mechanical devices may become deformed or distorted and in some cases may fail, migrate, or even dislodge. Furthermore, these devices can irritate the cardiac tissue at or near the implantation site, which in turn can potentially cause thromboembolic events, palpitations, and arrhythmias. Other reported complications include weakening, erosion, and tearing of the cardiac tissues around the implanted devices. Another potential drawback with the implanted mechanical devices described above is that, in order to be completely effective, the tissue around the devices must endothelize once the devices are implanted. The endothelization process can be gradual and can accordingly take several months or more to occur. Accordingly, the foregoing techniques do not immediately solve the problems caused by the PFO 113. Still another drawback associated with the foregoing techniques is that they can be technically complicated and cumbersome. Accordingly, the techniques may require multiple attempts before the mechanical device is appropriately positioned and implanted. As a result, implanting these devices may require long procedure times during which the patient must be kept under conscious sedation, which can pose further risks to the patient. Continue reading about Systems and methods for transeptal cardiac procedures, including tissue sealing members associated methods... Full patent description for Systems and methods for transeptal cardiac procedures, including tissue sealing members associated methods Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Systems and methods for transeptal cardiac procedures, including tissue sealing members associated methods patent application. Patent Applications in related categories: 20090281535 - Electrosurigical instrument and method - An electrosurgical instrument and method for treating varicose veins. 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