Abstract:
Devices, systems, and methods for the selective positioning of an intravascular neuromodulation device are disclosed herein. Such systems can include, for example, an elongated shaft and a therapeutic assembly carried by a distal portion of the elongated shaft. The therapeutic assembly is configured for delivery within a blood vessel. The therapeutic assembly can include a pre-formed shape and can be transformable between a substantially straight delivery configuration: and a treatment configuration having the pre-formed helical shape to position the therapeutic assembly in stable contact with a wall of the body vessel. The therapeutic assembly can also include a mechanical decoupler operably connected to the therapeutic assembly that is configured to absorb at least a portion of a force exerted on the therapeutic assembly by the shaft so that the therapeutic assembly maintains a generally stationary position relative to the target site.
Abstract:
Systems and methods for neuromodulation therapy are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a plurality of reference electrodes at the skin of a human patient and intravascularly positioning a plurality of ablation electrodes within a blood vessel lumen at a treatment site. The method can include obtaining impedance measurements between different combinations of the reference electrodes and the ablation electrodes and, based on the impedance measurements, identifying two or more electrode groups for treatment, where at least two of the electrode groups include a different one of the reference electrodes and a different one of the ablation electrodes.
Abstract:
Devices and systems for the selective positioning of an intravascular neuromodulation device are disclosed herein. Such systems can include, for example, an elongated shaft and a therapeutic assembly carried by a distal portion of the elongated shaft. The therapeutic assembly is configured for delivery within a blood vessel. The therapeutic assembly can include a pre-formed shape and can be transformable between a substantially straight delivery configuration; and a treatment configuration having the pre-formed helical shape to position the therapeutic assembly in stable contact with a wall of the body vessel. The therapeutic assembly can also include a mechanical decoupler operably connected to the therapeutic assembly that is configured to absorb at least a portion of a force exerted on the therapeutic assembly by the shaft so that the therapeutic assembly maintains a generally stationary position relative to the target site.
Abstract:
Methods for treating a patient using therapeutic renal neuromodulation and associated devices, system, and methods are disclosed herein. One aspect of the present technology is directed to neuromodulating nerve tissue in selected anatomical regions. In one embodiment, the method can include intravascularly advancing an elongate shaft of a catheter to renal vasculature of a human patient and locating a first neuromodulation element of the catheter within a distalmost portion of a main renal artery. The method includes locating a second neuromodulation element of the catheter within a branch vessel of the renal artery distal to a bifurcation at a distal end of the main renal artery. Neuromodulation of the nerve tissue surrounding the selected anatomical treatment locations can inhibit sympathetic neural activity in nerves proximate a portion of a renal artery and/or a renal branch artery proximate a renal parenchyma.
Abstract:
Methods for treating a patient using therapeutic renal neuromodulation and associated devices, system, and methods are disclosed herein. One aspect of the present technology is directed to neuromodulating nerve tissue in selected anatomical regions. In one embodiment, the method can include intravascularly advancing an elongate shaft of a catheter to renal vasculature of a human patient and locating a first neuromodulation element of the catheter within a distalmost portion of a main renal artery. The method includes locating a second neuromodulation element of the catheter within a branch vessel of the renal artery distal to a bifurcation at a distal end of the main renal artery. Neuromodulation of the nerve tissue surrounding the selected anatomical treatment locations can inhibit sympathetic neural activity in nerves proximate a portion of a renal artery and/or a renal branch artery proximate a renal parenchyma.
Abstract:
Devices, systems, and methods for the selective positioning of an intravascular neuromodulation device are disclosed herein. Such systems can include, for example, an elongated shaft and a therapeutic assembly carried by a distal portion of the elongated shaft. The therapeutic assembly is configured for delivery within a blood vessel. The therapeutic assembly can include a pre-formed shape and can be transformable between a substantially straight delivery configuration; and a treatment configuration having the pre-formed helical shape to position the therapeutic assembly in stable contact with a wall of the body vessel. The therapeutic assembly can also include a mechanical decoupler operably connected to the therapeutic assembly that is configured to absorb at least a portion of a force exerted on the therapeutic assembly by the shaft so that the therapeutic assembly maintains a generally stationary position relative to the target site.
Abstract:
Catheter apparatuses, systems, and methods for achieving neuromodulation by intravascular access. A treatment device has a pre-formed helical therapeutic assembly with spaced-apart proud portions that are offset with respect to the pre-formed helical shape when in a deployed configuration. The therapeutic assembly includes a plurality of energy delivery elements carried by and associated with the proud portions such that, in the deployed configuration, the proud portions are configured to position the energy delivery elements in apposition with an inner wall of a target blood vessel. The energy delivery elements can deliver energy across the inner wall of a renal artery, for example, to heat or otherwise electrically modulate neural fibers that contribute to renal function.
Abstract:
Systems and methods for neuromodulation therapy are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a plurality of reference electrodes at the skin of a human patient and intravascularly positioning a plurality of ablation electrodes within a blood vessel lumen at a treatment site. The method can include obtaining impedance measurements between different combinations of the reference electrodes and the ablation electrodes and, based on the impedance measurements, identifying two or more electrode groups for treatment, where at least two of the electrode groups include a different one of the reference electrodes and a different one of the ablation electrodes.
Abstract:
Methods for treating a patient using therapeutic renal neuromodulation and associated devices, system, and methods are disclosed herein. One aspect of the present technology is directed to neuromodulating nerve tissue in selected anatomical regions. In one embodiment, the method can include intravascularly advancing an elongate shaft of a catheter to renal vasculature of a human patient and locating a first neuromodulation element of the catheter within a distalmost portion of a main renal artery. The method includes locating a second neuromodulation element of the catheter within a branch vessel of the renal artery distal to a bifurcation at a distal end of the main renal artery. Neuromodulation of the nerve tissue surrounding the selected anatomical treatment locations can inhibit sympathetic neural activity in nerves proximate a portion of a renal artery and/or a renal branch artery proximate a renal parenchyma.
Abstract:
Systems and methods for neuromodulation therapy are disclosed herein. A method in accordance with embodiments of the present technology can include, for example, positioning a plurality of reference electrodes at the skin of a human patient and intravascularly positioning a plurality of ablation electrodes within a blood vessel lumen at a treatment site. The method can include obtaining impedance measurements between different combinations of the reference electrodes and the ablation electrodes and, based on the impedance measurements, identifying two or more electrode groups for treatment, where at least two of the electrode groups include a different one of the reference electrodes and a different one of the ablation electrodes.