摘要:
The invention provides surgical systems and methods for ablating heart tissue within the interior and/or exterior of the heart. A plurality of probes is provided with each probe configured for introduction into the chest for engaging the heart. Each probe includes an elongated shaft having an elongated ablating surface of a predetermined shape. The elongated shaft and the elongated ablating surface of each probe are configured to ablate a portion of the heart. A sealing device affixed to the heart tissue forms a hemostatic seal between the probe and the penetration in the heart to inhibit blood loss therethrough.
摘要:
An oral device for temporary placement in a patient's oral cavity includes a base, a tongue-engaging member and a tongue pocket. Partial vacuums are separately drawn through the tongue-engaging member and the tongue pocket in order to advance and control the position of the tongue in order to clear the patient's airway to reduce sleep apnea or treat other conditions.
摘要:
A device for altering cardiac performance includes an energy absorbing element which absorbs cardiac pumping energy from at least a portion of the heart. The energy may be delivered to another part of the body, such as another portion of the heart, to perform useful work such as providing blood pumping assistance.
摘要:
An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspect, the ablating device may be submerged in liquid during operation.
摘要:
A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.
摘要:
A device for altering cardiac performance includes an energy absorbing element which absorbs cardiac pumping energy from at least a portion of the heart. The energy may be delivered to another part of the body, such as another portion of the heart, to perform useful work such as providing blood pumping assistance.
摘要:
A device for altering cardiac performance includes an energy absorbing element which absorbs cardiac pumping energy from at least a portion of the heart. The energy may be delivered to another part of the body, such as another portion of the heart, to perform useful work such as providing blood pumping assistance.
摘要:
A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.
摘要:
The invention provides apparatus and methods for mapping conduction pathways and creating lesions in the heart wall for the treatment of atrial fibrillation. The apparatus may include at least one epicardial ablation probe having a plurality of electrodes for creating a lesion. The apparatus and method facilitate the formation of a lesion which electrically isolates the pulmonary veins from the surrounding myocardium.
摘要:
An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspect, the ablating device may be submerged in liquid during operation.