Abstract: Systems and methods of automatically controlling, on a graphical user interface used by a physician, display views of an anatomic structure of a patient. Such systems and methods of automatically controlling display views of an anatomic structure of a patient can facilitate visualizing a position of a medical device relative to the anatomic structure during a medical procedure directed to the anatomic structure. In certain implementations, the systems and methods of the present disclosure provide automatic display views of a cardiac catheter relative to a three-dimensional model of a patient's heart cavity during a medical procedure such as cardiac ablation.

Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.

Abstract: An ablation catheter having an expandable tip is disclosed herein. In some implementations, the ablation catheter includes a catheter shaft, an irrigation lumen, and an expandable tip secured to the catheter shaft. In some implementations, the expandable tip includes a balloon defining a volume in communication with the irrigation lumen. In these and other implementations, the balloon defines a plurality of irrigation orifices in fluid communication with the volume. In these and other implementations, the expandable tip comprises an ablation electrode and a plurality of sensing electrodes disposed along a distal section of the balloon. In these and still other implementations, the sensing electrodes disposed along the distal section of the balloon can be electrically isolated from and bounded by the ablation electrode.

Abstract: An ablation catheter having a deformable tip is disclosed herein. In some implementations, the ablation catheter includes a catheter body and a deformable tip secured to the catheter body. In these and other implementations, the catheter body can include a fluid delivery lumen. In these and other implementations, the deformable tip includes one or more valves that are configured to open in response to deformation of the deformable tip. In these and still other implementations, the ablation catheter is configured to permit liquid communication between an interior of the deformable tip and an exterior of the deformable tip. In some implementations, RF energy is transmitted from the interior of the deformable tip to the exterior of the deformable tip via liquid exiting the deformable tip.

Abstract: Ablation systems of the present disclosure facilitate the safe formation of wide and deep lesions. For example, ablation systems of the present disclosure can allow for the flow of irrigation fluid and blood through an expandable ablation electrode, resulting in efficient and effective cooling of the ablation electrode as the ablation electrode delivers energy at a treatment site of the patient. Additionally, or alternatively, ablation systems of the present disclosure can include a deformable ablation electrode and a plurality of sensors that, in cooperation, sense the deformation of the ablation electrode, to provide a robust indication of the extent and direction of contact between the ablation electrode and tissue at a treatment site.

Abstract: Systems and methods of automatically controlling, on a graphical user interface used by a physician, display views of an anatomic structure of a patient. Such systems and methods of automatically controlling display views of an anatomic structure of a patient can facilitate visualizing a position of a medical device relative to the anatomic structure during a medical procedure directed to the anatomic structure. In certain implementations, the systems and methods of the present disclosure provide automatic display views of a cardiac catheter relative to a three-dimensional model of a patient's heart cavity during a medical procedure such as cardiac ablation.

Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.

Abstract: Systems and methods of the present disclosure are directed to controlling the build of a three-dimensional model of a cardiac chamber. More specifically, the systems and methods of the present disclosure can be used to rewind a portion of a construction of a three-dimensional model of the cardiac chamber.

Abstract: Systems and methods present multiple images of a three-dimensional model, including a three-dimensional representation of an anatomic structure and a representation of a medical device relative to the anatomic structure, on a graphical user interface. The multiple images correspond to different views (e.g., in multiple, different planes) of the three-dimensional model to provide complementary spatial information regarding a position of the medical device relative to the anatomic structure during a medical procedure performed on the anatomic structure. Such complementary spatial information can, for example, provide spatial context to facilitate controlling the position of the medical device relative to the anatomic structure during the medical procedure.

Abstract: Ablation systems and methods of the present disclosure control lesion depth and width such that, for example, wide and shallow lesions can be formed in target tissue in an anatomic structure of a patient during a medical procedure. Such wide and shallow lesions can be useful for treating, for example, thin tissue such as atrial tissue in atria of the heart of the patient.

Abstract: An ablation catheter having a deformable tip is disclosed herein. In some implementations, the ablation catheter includes a catheter body and a deformable tip secured to the catheter body. In these and other implementations, the catheter body can include a fluid delivery lumen. In these and other implementations, the deformable tip includes one or more valves that are configured to open in response to deformation of the deformable tip. In these and still other implementations, the ablation catheter is configured to permit liquid communication between an interior of the deformable tip and an exterior of the deformable tip. In some implementations, RF energy is transmitted from the interior of the deformable tip to the exterior of the deformable tip via liquid exiting the deformable tip.

Abstract: Devices, systems, and methods for pacing tissue are disclosed herein. In some embodiments, the devices, systems, and methods position a tip section of a catheter adjacent tissue within an anatomical structure. The tip section is attached to a distal end portion of a catheter shaft, has a maximum radial dimension that is larger than a maximum radial dimension of the catheter shaft, and includes a plurality of electrodes spatially distributed about the tip section. The devices, systems, and methods further select one or more groupings of individual ones of the plurality of electrodes and deliver stimulating energy to or through the adjacent tissue via the selected groupings of electrodes. The stimulating energy is sufficient to activate nerve tissue proximate the tip section but is insufficient to ablate the adjacent tissue. In this manner, devices, systems, and methods disclosed herein can be used to locate nerve tissue proximate the tip section.

Abstract: Systems and methods of the present disclosure are directed to controlling the build of a three-dimensional model of a cardiac chamber. More specifically, the systems and methods of the present disclosure can be used to rewind a portion of a construction of a three-dimensional model of the cardiac chamber.

Abstract: Devices, systems, and methods of the present disclosure are directed to facilitating control of a graphical user interface associated with performing a medical procedure. Inputs can be received from a plurality of input devices interacting with respective sets of input options displayed on respective portions of the graphical user interface. One of the input devices can be operable by a physician, during a medical procedure, to navigate a set of input options to modify a graphical representation of at least one of a medical device and an anatomic structure displayed on the graphical user interface.

Abstract: Ablation systems and methods of the present disclosure include a catheter including one or more image sensors. The one or more image sensors can facilitate, for example, positioning an ablation electrode at a treatment site of an anatomic structure and, additionally or alternatively, can facilitate controlling delivery of therapeutic energy to a treatment site of an anatomic structure.

Abstract: Ablation systems of the present disclosure facilitate the safe formation of wide and deep lesions. For example, ablation systems of the present disclosure can allow for the flow of irrigation fluid and blood through an expandable ablation electrode, resulting in efficient and effective cooling of the ablation electrode as the ablation electrode delivers energy at a treatment site of the patient. Additionally, or alternatively, ablation systems of the present disclosure can include a deformable ablation electrode and a plurality of sensors that, in cooperation, sense the deformation of the ablation electrode, to provide a robust indication of the extent and direction of contact between the ablation electrode and tissue at a treatment site.

Abstract: Devices, systems, and methods of the present disclosure are directed to controlling distribution of electrical energy moving from an ablation electrode at a treatment site within a patient to a plurality of return electrodes on skin of the patient. Control over the distribution of electrical energy moving from the ablation electrode to the plurality of return electrodes can reduce or eliminate the need for manual intervention (e.g., repositioning the plurality of return electrodes on the skin of the patient, repositioning the patient, etc.) to achieve a suitable distribution of the electrical energy. Additionally, or alternatively, the devices, systems, and methods of the present disclosure can respond rapidly and automatically to changes in distribution of the electrical energy to reduce the likelihood and magnitude of inadvertent changes in the distribution of electrical energy over the course of a medical procedure.

Abstract: Devices, systems, and methods for treating cardiac arrhythmia are disclosed herein. In some embodiments, devices, systems, and methods disclosed herein deliver interrogating energy to tissue at a position on a wall of an anatomical structure of a patient. If the devices, systems, and methods disclosed herein detect a change in electrical activity of the anatomical structure in response to the interrogating energy, the devices, systems, and methods disclosed herein can apply irreversible therapy to the tissue. In some embodiments, the change in electrical activity corresponds to slowing or termination of a detected arrhythmia.

Abstract: Devices, systems, and methods of the present disclosure can overcome physical constraints associated with catheter introduction to facilitate the use of a catheter with a large distal portion as part of a medical procedure benefitting from such a large distal portion, such as, for example, cardiac ablation. More specifically, devices, systems, and methods of the present disclosure can compress an expandable tip of a catheter from an expanded state to a compressed state along a tapered surface of an insertion sleeve for advancement of the expandable tip into vasculature of a patient. The tapered surface of the insertion sleeve can, for example, apply compressive forces at an angle against the advancing expandable tip. As compared to other approaches to the application of compressive force to an expandable tip, compressing the expandable tip using an angled force can reduce the likelihood of unintended deformation of the expandable tip.