Methods for displaying physiological mapping data are disclosed. An example method may include storing a set of three-dimensional positional data on a memory, storing a set of metric data on the memory, and storing a set of electrogram data on the memory. The method may also include outputting the set of three-dimensional positional data, the set of two-dimensional metric data, and the set of electrogram data from the memory to a display unit and displaying the set of three-dimensional positional data, the set of two-dimensional metric data, and the set of electrogram data on the display unit as a dynamic display.

A method, including receiving from mapping electrodes positioned at locations within a heart, signals indicating electrical activity in tissue contacting the electrodes, and processing the signals to identify, for each location, at least one corresponding LAT in a cycle of a heart. For each location, an earliest LAT in the cycle is identified, and an electroanatomical map including mapping points having respective locations and showing the earliest LAT at each location is generated and rendered. An input selecting a subset of the points is received, and a time range containing the earliest LAT of a majority of the points in the subset is identified. One or more outlying points in the subset are identified, and a second LAT, later than the earliest LAT in the cycle is found among the at least one identified LAT identified at the outlying points. The map is updated to display the found second LAT.

An electrode support structure assembly is provided comprising an electrode support structure including a plurality of splines. Each of the plurality of splines can have a proximal end portion and a distal end portion. The assembly further comprises a first element defining an axis and comprising an outer surface. The outer surface comprises a plurality of slots configured to receive the distal end portion of each of the plurality of splines. The first element is configured such that the distal end portion of each of the plurality of splines may move with respect to each slot. In accordance with some embodiments, the distal end portion of each of the plurality of splines comprises a section configured for engagement with the first element, wherein the section comprises a shoulder.

A catheter includes a shaft for insertion into an organ of a patient, an extendable distal-end assembly, and two or more strengthening elements. The extendable distal-end assembly is coupled to the shaft and includes multiple splines, at least one spline includes a flexible circuit board having one or more electrodes disposed thereon, the circuit board is configured, when the distal-end assembly is extended in the organ, to conform to a surface of the organ so as to make contact between the electrodes and the surface. The strengthening elements are distributed along the circuit board of the spline and are configured to mechanically strengthen the spline.

This disclosure is directed to a catheter having a basket-shaped electrode assembly with a high electrode density. The basket-shaped electrode assembly may have a plurality of spines, such as up to twelve, each with a plurality of electrodes, such as up to sixteen. The distal ends of the plurality of spines are joined at a distal hub, all of which are fashioned from a single piece of superelastic material.

This disclosure is directed to a catheter having a basket-shaped electrode assembly with a high electrode density. The basket-shaped electrode assembly may have a plurality of spines, such as up to twelve, each with a plurality of electrodes, such as up to sixteen. The distal ends of the plurality of spines are joined at a distal hub, all of which are fashioned from a single piece of superelastic material.

Systems and methods for measuring and monitoring intracavitary tissue temperature. The system may include a catheter shaft with a circuit board disposed therein, the circuit board having an array of sensors disposed thereon. The catheter shaft may have an opening and an expandable structure surrounding the opening to provide a field of view of the intracavitary tissue for the array of sensors through the opening. The system may include a software-based programming system run on a computer such that a clinician may review information indicative of temperature of the intracavitary tissue, and be alerted if the temperature exceeds a predetermined threshold.

A method includes receiving, from a probe that includes electrodes and is positioned inside a cavity in an organ of a patient, (i) proximity signals indicative of proximity of the electrodes to a wall of the cavity, and (ii) position signals indicative of positions of the electrodes within the cavity. Based on the proximity signals and the position signals, at least a portion of a volume of the cavity is represented by a sphere model including multiple spheres. A direction is identified along which one or more spheres are larger than one or more surrounding spheres by at least a given factor. Based on the indicated direction, a location of an opening in the wall of the cavity is estimated and presented to a user.

The present invention relates to a catheter and method for detecting electrical activity in an organ. The catheter comprises: a proximal end with connection means for connecting to a signal processing system and a distal end for being inserted into a patient's organ, at least 3 arms extending from the distal end, each arm comprising at least one electrode. The catheter further comprises a central electrode at the distal end of the catheter. The method comprises: inserting a multi-electrode catheter into a patient's organ; obtaining and conditioning a positioning signal for positioning the electrodes; obtaining causal information about the current location; processing and summarizing the causal information obtained together with causal information about previous locations; visually presenting a recurrence plot of all the causal information obtained; and then moving the catheter to a new location and repeating the method until obtaining a complete recurrence plot.

The present disclosure provides methods, systems, and apparatuses for providing real time intraprocedural operational feedback to the operator as to the success of a renal denervation procedure and its overall effectiveness for reducing the blood pressure of a subject to allow for more precise and thorough ablation of the renal artery and better patient outcomes. Using this real time feedback generated through the electrical stimulation of multiple points about the circumference of the renal artery at specific times during the procedure, the operator can assess the desired procedural endpoint and whether the amount of renal denervation provided to the subject is sufficient, or whether the subject may benefit from further denervation of the renal artery. The present disclosure provides means for providing real time intraprocedural feedback to the operator that can be incorporated into conventional renal denervation catheters and equipment.