摘要:
A sphincter treatment apparatus includes an elongated member having at least one lumen including an inflation lumen and a basket assembly with first and second arms. The basket assembly is coupled to the elongated member and has deployed and non-deployed configurations. An inflatable member is coupled to the elongated member and positioned in an interior of the basket assembly. The inflatable member has deployed and non-deployed states and is coupled to the inflation lumen. In the deployed state, the inflatable member expands the basket assembly to its deployed configuration. A first energy delivery device is positionable in the first arm and advanceable from the first arm to a selected treatment site. A second energy delivery device is positionable in the second arm and advanceable from the second arm to a selected treatment site.
摘要:
Systems for treating a mucosal surface of an alimentary canal tissue region are provided. The systems can include an elongate support structure, an expandable member positionable at a distal portion of the support structure and one or more radio frequency (RF) ablation electrodes carried by the expandable member. The elongate support structure and the expandable member can be adapted to place the one or more electrodes in contact with a mucosal surface of an alimentary canal tissue region. The system can further include an RF energy source connected to the one or more electrodes.
摘要:
A method for treating a sphincter provides a polymer material having a liquid state. The method also provides a catheter having a distal end, a tissue piercing device carried by the distal end, and an energy delivery device coupled to the tissue piercing device. The tissue piercing device has a lumen. The method introduces the catheter into an esophagus and pierces an exterior sphincter tissue surface within with the tissue piercing device. The method advances the tissue piercing device into an interior sphincter tissue site and conveys the polymer material while in a liquid state through the lumen into the interior sphincter tissue site. The method delivers energy to the tissue piercing device to transform the polymer material into a less liquid state within the interior sphincter tissue site, to thereby remodel the sphincter.
摘要:
A sphincter treatment apparatus has an introducer means including a distal portion means. An expandable device means includes a plurality of arm means. Each arm means of the plurality has a distal section means and a proximal section means. Each of distal sections means of the arm means are coupled and each of the proximal sections means of the arm means are coupled to the introducer means distal portion means. The expandable device means is configured to at least partially dilate a sphincter in a deployed state. An energy delivery device means is introduceable from the introducer means into a selected site of the sphincter. The energy delivery device means is configured to deliver sufficient energy to reduce a frequency of relaxation of the sphincter.
摘要:
An apparatus includes a first expandable member that is expandable by an expansion medium. The first expandable member includes an exterior and a plurality of apertures. The expansion medium is released from the first expandable member when a sufficient pressure is applied to the expansion medium housed in an interior of the first expandable member. A second expandable member is positioned at least partially adjacent to the first expandable member. The second expandable member is configured to receive at least a portion of the expansion medium from the interior of the first expandable member. An electromagnetic energy delivery device is coupled to one of the first or second expandable members and is configured to be coupled to a power source. The first and second expandable members are sized to be expanded sufficiently to open a sphincter.
摘要:
A sphincter treatment apparatus includes an elongated member having at least one lumen including an inflation lumen and a basket assembly with first and second arms. The basket assembly is coupled to the elongated member and has deployed and non-deployed configurations. An inflatable member is coupled to the elongated member and positioned in an interior of the basket assembly. The inflatable member has deployed and non-deployed states and is coupled to the inflation lumen. In the deployed state, the inflatable member expands the basket assembly to its deployed configuration. A first energy delivery device is positionable in the first arm and advanceable from the first arm to a selected treatment site. A second energy delivery device is positionable in the second arm and advanceable from the second arm to a selected treatment site.
摘要:
An apparatus to treat a sphincter has a support member. A sphincter electropotential mapping device includes a mapping electrode. The sphincter electropotential mapping device is coupled to the support member and configured to detect aberrant myoelectric activity of the sphincter.
摘要:
A method detects at a tissue site an electrical activity causing a transient relaxation of at least a portion of one of a sphincter, a lower esophageal sphincter, a stomach, a cardia or a fundus. The method treats the electrical activity at the tissue site by delivering electromagnetic energy to ablate at least a portion of one of the nerve, the gastric nerve, a nerve plexus, a myenteric nerve plexus, a ganglia, a nerve pathway or an electrically conductive pathway. The method conducts a cooling solution to the tissue site at a flow rate and adjusts the flow rate in response to sensed temperature conditions.
摘要:
Systems and methods deploy an electrode structure in contact with the tissue region. The electrode structure carries a sensor at a known location on the electrode structure to monitor an operating condition. The systems and methods provide an interface, which generate an idealized image of the electrode structure and an indicator image to represent the monitored operating condition in a spatial position on the idealized image corresponding to the location of the sensor on the electrode structure. The interface displays a view image comprising the idealized image and indicator image. The systems and methods cause the electrode structure to apply energy to heat the tissue region while the view image is displayed on the display screen.
摘要:
An apparatus to treat a sphincter includes an energy delivery device support member. An energy delivery device is coupled to the energy delivery support member. The energy delivery device has a configuration that controllably produces lesions of a sufficient size and number in the sphincter to create a selectable tightening of the sphincter.