Ablation catheters and systems include flexible catheter tips with a distal needle or ports for delivery of an ablative agent to a target tissue. Pressure monitoring during ablation ensure operation is performed within safe limits and with desired efficacy. Positioning elements help maintain the devices in the proper position with respect to the target tissue and also prevent the passage of ablative agent to normal tissues.

The present disclosure relates to a device assembly and a method for treating heart failure by normalizing elevated blood pressure in the left atrium of a heart of a mammal Disclosed herein is a RF energy-based transcatheter interatrial septum excision device configured to create a sized interatrial aperture between the right and left atria of a heart for the relief of elevated left atrial pressure. The device assembly comprises a delivery catheter, a tissue stabilizer attached to a tissue stabilizer catheter, a tissue cutter attached to a tissue cutter catheter, a remotely located RF generator connected to an RF cathode and anode of the device assembly.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the device including a set of splines coupled to a catheter for medical ablation therapy. Each spline of the set of splines may include a set of electrodes formed on that spline. The set of splines may be configured for translation to transition between a first configuration and a second configuration. The devices described herein may be used to form a lesion via focal ablation.

A catheter system for cryoablation is described that comprises: a catheter, which extends along its longitudinal axis; at least one cryoballoon which surrounds the catheter around its entire circumference and forms a filling lumen; a cooling lumen, which is separate from the filling lumen, within the cryoballoon, wherein the cooling lumen is arranged at the outer region of the cryoballoon away from the longitudinal axis of the catheter; at least one filling conduit which extends within the catheter and terminates in the filling lumen; and at least one cooling conduit which extends within the catheter and terminates in the cooling lumen.

Endoluminal devices and methods that facilitate treatment of a desired treatment region of the gastrointestinal tract, in particular the duodenum, are provided herein. Such devices include a catheter having a treatment delivery portion disposed between proximal and distal balloons. The treatment can include thermal ablation of the treatment region by delivering a treatment fluid to the treatment region between the inflated balloons. In one aspect, the treatment fluid is delivered so as to fill the entire treatment region between the balloons without regard to the inflated balloon pressure. To ensure filling, the treatment fluid can be delivered into the treatment region until a pressure increase is observed or until a pre-determined volume is delivered. Other treatment devices and methods include means of uniformly distributing a treatment gas for plasma ablation, electrical ablation energy or a chemical or drug eluting stent.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the device including a set of splines coupled to a catheter for medical ablation therapy. Each spline of the set of splines may include a set of electrodes formed on that spline. The set of splines may be configured for translation to transition between a first configuration and a second configuration. The devices described herein may be used to form a lesion via focal ablation.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the device including a set of splines coupled to a catheter for medical ablation therapy. Each spline of the set of splines may include a set of electrodes formed on that spline. The set of splines may be configured for translation to transition between a first configuration and a second configuration.

Devices for therapeutic nasal neuromodulation and associated systems and methods are disclosed herein. A system for therapeutic neuromodulation in a nasal region configured in accordance with embodiments of the present technology can include, for example, a shaft and a therapeutic element at a distal portion of the shaft. The shaft can locate the distal portion intraluminally at a target site inferior to a patient's sphenopalatine foramen. The therapeutic element can include an energy delivery element configured to therapeutically modulate postganglionic parasympathetic nerves at microforamina of a palatine bone of the human patient for the treatment of rhinitis or other indications. In other embodiments, the therapeutic element can be configured to therapeutically modulate nerves that innervate the frontal, ethmoidal, sphenoidal, and maxillary sinuses for the treatment of chronic sinusitis.

Devices for therapeutic nasal neuromodulation and associated systems and methods are disclosed herein. A system for therapeutic neuromodulation in a nasal region configured in accordance with embodiments of the present technology can include, for example, a shaft and a therapeutic element at a distal portion of the shaft. The shaft can locate the distal portion intraluminally at a target site inferior to a patient's sphenopalatine foramen. The therapeutic element can include an energy delivery element configured to therapeutically modulate postganglionic parasympathetic nerves at microforamina of a palatine bone of the human patient for the treatment of rhinitis or other indications. In other embodiments, the therapeutic element can be configured to therapeutically modulate nerves that innervate the frontal, ethmoidal, sphenoidal, and maxillary sinuses for the treatment of chronic sinusitis.

A medical device including a handle; a flexible conduit having a proximal segment and a distal segment, wherein the proximal segment is coupled to the handle; and a substantially contiguous shaping structure coupled to the distal segment of the flexible conduit, wherein the shaping structure is configured to transition from (i) a substantially linear configuration to (ii) a configuration where a portion of the contiguous shaping structure is laterally displaced from remaining portions of the contiguous support structure upon the application of an axial compression force to the shaping structure.