A system for ablating or monitoring a zone of the heart, includes a system to measure the heart electrical activity; a phased array for generating a beam of focussed ultrasound signals on a targeted zone of the heart; an imaging system determining an image of a transcostal wall projected in an image plane of the phased array by taking into consideration a position and direction of the phased array and making it possible to deactivate elements of the phased array in accordance with the position of the elements with regard to the position of the projected image of the transcostal wall; a positioning system to control the position of a focussed zone of a beam of focussed ultrasound signals on the targeted zone, a monitoring system to measure a temperature and tissue deformation in the targeted zone; and a device for measuring a level of cavitation in the targeted zone.

An ultrasound cardiac stimulation system includes: a system for measuring the heart electrical activity; a system for generating a beam of focussed ultrasound signals focussed on a targeted zone, the signals being calibrated to generate electrical stimulation in a zone of the heart, the beam generation being synchronised with a first selected time of the electrocardiogram, the generation of the beam corresponding to a pulse with a duration of less than 80 ms; a system for locating the targeted zone coupled with a system for positioning the system for generating the focussed beam to control the beam of focussed ultrasound signals in the targeted zone, the location system being synchronised with the system for generating the beam of focussed signals; a single monitoring system following in real time a temperature and tissue deformation in the targeted zone, the monitoring system taking measurements in synchronisation with the rhythm of the electrocardiogram.

This disclosure is directed to a catheter having a basket-shaped electrode assembly at the distal end of the catheter body formed from a plurality of spines with electrodes. The basket-shaped electrode assembly structural elements at the proximal and distal ends. The structural elements may maintain the spines in a desired spatial relationship with each other and/or may couple the distal ends of the spines to a pulling member. The basket-shaped electrode assembly has expanded arrangement in which the spines bow outwards and a collapsed arrangement in which the spines are arranged generally along a longitudinal axis of the catheter body

The present technology is generally directed to delivery systems for medical implants, such as electrode assemblies for stimulating heart tissue. In some embodiments, a delivery system for a medical implant includes an elongate sheath having a distal portion and a balloon coupled to the distal portion of the sheath. The delivery system can further include a fluid circuit configured to be in fluid communication with the balloon and having a pressure source and a pressure sensor. The pressure source can move the balloon between an inflated configuration and a deflated configuration, and the pressure sensor can sense a pressure within the balloon. The sensed pressure can be monitored to determine (i) that the balloon is in contact with heart tissue of a heart, (ii), a motion profile of the heart tissue, and/or (iii) blood flow characteristics within the heart.

Devices, systems, and methods for treating a heart of a patient may make use of one or more implant structures which limit a size of a chamber of the heart, such as by deploying a tensile member to bring a wall of the heart toward (optionally into contact with) a septum of the heart.

A method includes inserting an ablation catheter into an ablation site in a patient heart. Multiple electrocardiogram (ECG) signals are acquired. A refractory period of the patient heart is detected based on the acquired ECG signals. The ablation site is ablated using the ablation catheter during the detected refractory period.

A system and method are provided for determining electrophysiological data. The system comprises an electronic control unit that is configured to receive electrical signals from a set of electrodes, receive position and orientation data for the set of electrodes from a mapping system, compensate for position and orientation artifacts of the set of electrodes, compose cliques of a subset of neighboring electrodes in the set of electrodes, determine catheter orientation independent information of a target tissue, and output the orientation independent information to a display. The method comprising receiving electrogram data for a set of electrodes (80), compensating for artifacts in sensor positions in the mapping system (81), resolving the bipolar signals into a 3D vector electrogram in the mapping system coordinates (82), manipulating observed unipolar voltage signals and the tangent component of the e-field to estimate the conduction velocity vector (83), and outputting the catheter orientation independent information (84).

Devices, systems and methods are disclosed for the ablation of tissue. A steerable ablation catheter can include one or more ablation elements at its distal end and one or more ablation elements fixedly attached to its shaft. The distal end of the ablation catheter can be deflected to assume a number of different deflection geometries in at least one direction along the shaft. One feature of the ablation catheter is that its shaft can comprise materials of differing durometers or stiffnesses attached together at a joint. Methods associated with use of the ablation catheter are also covered.

A His bundle-detecting snare catheter according to the present invention detects a myocardial electrical signal and locates the position of a His bundle through the insertion of a snare and an EP catheter into a dual lumen catheter having two lumens, and captures a cerclage wire, which has passed through the His bundle, and safely guides same into a body. The His bundle-detecting snare catheter according to the present invention comprises: a dual lumen catheter having formed therein a first lumen and a second lumen; an electrical signal detection catheter which is inserted into the first lumen or the second lumen and detects a myocardial electrical signal; and a snare which is inserted into the first lumen or the second lumen and has one or more annular wires at a distal portion thereof, wherein the electrical signal detection catheter and the snare are inserted into different lumens.

A computing system may predict a complication based on measurements of related biomarker(s) obtained via one or more sensing systems, and generate an adjustment of a surgical parameter associated with a surgery. The biomarker measurements may include pre-surgical and/or in-surgical measurements. The hemostasis-related biomarker(s) measured pre-surgery may include blood pressure, blood pH, edema, heart rate, blood perfusion rate, coagulation status and/or the like. Based on the prediction, the computing system may generate a control signal configured to alter a matter in which a surgical cutting and stapling device and/or a surgical energy operate, to adjust a surgical procedure plan, to adjust to a surgical instrument selection, indicate a probability of the hemostasis complication, and/or to indicate a suggested adjustment to surgical procedure plan, surgical approach, and/or surgical instrument selection.