Biosense Webster (israel) Ltd.

Johnson & Johnson Surgical Vision, Inc.

Acclarent, Inc.

Other

Biosense Webster (isreal) Ltd.

Vadim Gliner

Assaf Govari

Andres Claudio Altmann

Alon Boumendil

Yehuda Algawi

Ilya Sitnitsky

Yaron Ephrath

Yair Palti

Christopher Thomas Beeckler

Ram Bernard Mayer

Remi Bettan

Jetmir Palushi

Israel Zilberman

Joseph Thomas Keyes

Fatemeh Akbarian

Ehsan Shameli

Itamar Bustan

Babak Ebrahimi

Uri Avni

Yael Buchnik

George L Matlock

Itzhak Fang

Henry F Salazar

Akram Zoabi

John H Thinnes, Jr

Fady Massarwi

Don Q Ngo-Chu

Zvi Dekel

Moran Levi

Hany Abdelwahed

Ygal Zucker

Shai Shimon Bard

Alexander Salevich

Ilan Goldenberg

Yitzhack Schwartz

Thomas R Jenkins

Randy J Kesten

Shubhayu Basu

Athanassios Papaioannou

Yoav Pinsky

Stanislav Katzir

David A Smith, Jr

Gili Attias

Behnam Amin

Eden Kidishman

Marc Dean

Sharona Ben Shoshan

Madison K Vanosdoll

Noam Rachli

Kevin Mark Okarski

Dganit David

Ghislain G Sema

Uriel Hod

Eyal Dror

George Gusein

Aleksander Prylutskyy

Yan Korgozki

Alison D Wright

Yoav Lamhot

A catheter includes: (a) a shaft for insertion into a heart of a patient, (b) an expandable distal-end assembly, which is coupled to the shaft and is configured to make contact with tissue of the heart, (c) at least first and second electrocardiogram (ECG) electrodes, which are coupled to an outer surface of the expandable distal-end assembly, and when placed in contact with the tissue, are configured to sense ECG signals in the tissue, and (d) a reference electrode, which is positioned within an inner volume of the distal-end assembly, and in an expanded position of the distal-end assembly, the reference electrode: (i) has no physical contact with the tissue, and (ii) is positioned at a first distance from the first ECG electrode and at a second distance from the second ECG electrode, and the difference between the first and second distances is smaller than a predefined threshold.

Electro-anatomical mapping and annotation presented in electrophysiological procedures

In one embodiment, a phacoemulsification system includes a phacoemulsification probe configured to be inserted into an eye, and including a needle, a horn configured to support the needle, and an ultrasonic actuator connected to the horn and configured to vibrate the needle to emulsify a lens of the eye, an aspiration line partially disposed in the needle, a pumping sub-system connected to the aspiration line and configured to remove fluid and waste matter from the eye via the aspiration line, a valve disposed in the aspiration line and configured to control fluid connectivity in the aspiration line, a sensor configured to provide a signal indicative of a fluid metric in the aspiration line, and a controller configured to find an activation status of the ultrasonic actuator, and selectively control the valve responsively to the fluid metric and the activation status of the ultrasonic actuator.

Anti-vacuum surge system

A system comprising a processor and memory storing instructions configured to cause the system to: receive multiple electrophysiological (EP) signals acquired by multiple electrodes of a multi-electrode catheter that are in contact with tissue in a region of a cardiac chamber, and respective tissue locations at which the electrodes acquired the EP signals, calculate an average local activation time, determine: a first section of two sections having a smaller average LAT value, and a second section of the two sections having a higher average value, determine a first representative location in the first section, and a second representative location in the second section, calculate a propagation vector indicative of propagation of an EP wave that has generated the EP signals, determine if a re-entering EP wave is detected, and calculate an additional propagation vector for the re-entering EP wave.

Analyzing multi-electrode catheter signals to determine electrophysiological (EP) wave propagation vector

An apparatus includes a current source, an electronic circuit and a circuit board. The current source is configured to flow an electrical current having a selected frequency between a pair of electrodes coupled to a medical probe. The electronic circuit is configured to measure a single-ended voltage relative to ground that is formed on at least one of the electrodes in the pair in response to the electrical current, and, based on the measured voltage, to assess physical contact between the at least one of the electrodes and tissue. The circuit board includes the current source and the electronic circuit, and includes a layout that produces, at the selected frequency, a predefined capacitance between the current source and ground, thus forming a reference for measurement of the single-ended voltage.

Assessing tissue contact with catheter using pairs of electrodes and common reference ground established using designed circuit-board capacitance

In one example, a medical system includes a display, a console including a plurality of ports configured to be coupled with the catheters via respective cables, the catheters having respective first electrical channel profiles, the ports having respective second electrical channel profiles, and processing circuitry configured to receive user input selecting respective ones of the catheters to be used in a medical procedure. find a connection configuration with which to couple the respective ones of the catheters with ones of the ports, responsively to the respective first electrical channel profiles of the respective ones of the catheters and the respective second electrical channel profiles of the ports, and render the connection configuration to the display.

Catheter connection configuration system

A system includes a medical instrument, a position sensor, and a processor. The medical instrument includes a handle and a head, the head being configured for insertion into an organ of a patient and having a feature that is rotationally-asymmetric about a longitudinal axis of the medical instrument. The position sensor, which is disposed on the head and is configured to generate signals in response to an externally-applied magnetic field. The processor is configured to receive the signals generated by the position sensor on the head, and estimate, based on the received signals, a roll angle of the rotationally-asymmetric feature of the head.

Finding roll angle of distal end of deflectable or non-deflectable invasive medical instrument

A method for calibrating a probe includes applying respective harmonic electrical signals having respective amplitudes and respective phases to multiple piezoelectric crystals coupled with a tip of the probe so as to cause the tip to vibrate, observing a motion of the tip while applying the respective harmonic electrical signals, adjusting the respective amplitudes and the respective phases of the signals so as to cause the observed motion of the tip to conform to a predefined trajectory, and recording an indication of the respective, adjusted amplitudes and phases in a memory contained in the probe.

Compensating for imperfect behavior of multi-piezoelectric crystal

A system includes a processor and a display. The processor is configured to: (i) produce an electroanatomic (EA) map of a surface of the organ, the EA map specifying a propagation vector-field (PVF) indicative of propagation of an electrophysiological (EP) wave over at least the surface, (ii) select at least a region of the organ, (iii) calculate a gaussian integral of the PVF along a perimeter of at least a closed contour indicative of the selected region, and (iii) produce at the region, a tag indicative of the LAS, in case the calculated gaussian integral meets a criterion. The display is configured to display the EA map and at least the tag over the EA map.

Detecting local activation source in atrial fibrillation

In one embodiment, a medical system includes a catheter configured to be inserted into a chamber of a heart of a living subject, and including catheter electrodes configured to contact tissue at respective locations within the chamber of the heart, a display, and a processing circuitry configured to receive respective signals from the catheter captured by respective ones of the electrodes, assess conformity of each of the respective signals to at least one signal characteristic, find a given one of the signals of a given one of the electrodes not conforming to the at least one signal characteristic for a given time period, and render to the display an indication that the given signal of the given electrode does not conform to the at least one signal characteristic for the given time period.

Transient event identification

A system includes a processor to receive multiple electrophysiological (EP) signals acquired by multiple electrodes of a multi-electrode catheter that are in contact with tissue in a region of a cardiac chamber, and respective tissue locations at which the electrodes acquired the EP signals. The processor calculates local activation time (LAT) values for the respective tissue locations, and compares the average LAT values to determine representative locations. Based on a comparison between average LAT values the processor produces a propagation vector indicative of a propagation of an EP wave that has generated the EP signals and displays the propagation vector to a user.

Mapping resolution of electrophysiological (EP) wave propagating on the surface of patient heart

A phacoemulsification system having an imaging device configured to capture images of an eye and a phacoemulsification probe, a display, and a processor configured to receive an eye scan result providing a two-dimensional array of cataract thicknesses of the eye, find cutlines through which to cut the cataract into sections responsively to the two-dimensional array of cataract thicknesses, and render the images of the eye and the phacoemulsification probe with representations of the found cutlines through which to cut the cataract into sections to the display.

Phacoemulsifation guidance

A method, including receiving, from electrodes positioned within a heart, first signals from at least three of the electrodes indicating electrical activity in tissue with which the at least three of the electrodes engage, and second signals indicating locations of the at least three electrodes. The second signals are processed to compute the locations of the at least three electrodes and to determine a geometric center of the locations. Based on the signals, an electroanatomical map is generated for an area of the tissue including the geometric center, and an arrhythmia focus is determined in the map. A circle is presented, and within the circle, a region of the map is presented including the geometric center and the focus so that the geometric center on the map aligns with a center of the circle, the region within the circle indicating a spatial relationship between the geometric center and the focus.

Visual guidance for positioning a distal end of a medical probe

In one embodiment, a medical apparatus, includes a medical instrument configured to move within a passage in a body of a patient, a position tracking system to track coordinates of the medical instrument within the body, a display screen, and a processor to register the position tracking system and a 3D computerized tomography (CT) image of at least a part of the body within a common frame of reference, find a 3D path of the medical instrument through the passage from a start point to a termination point within the common frame of reference, compute a direction to the 3D path from the medical instrument responsively to the tracked coordinates, and render and simultaneously display on the display screen respective 2D CT slices, based on the 3D CT image, including respective 2D indications of the direction to the 3D path from the instrument projected onto the respective 2D CT slices.

2D pathfinder visualization

A system includes a needle, an actuator assembly and a generator. The needle is configured to be vibrated so as to emulsify a lens of an eye. The actuator assembly, includes a first actuator, a second actuator and a third actuator, which are distributed around a longitudinal axis of the needle and are configured to vibrate along the longitudinal axis in response to a first driving signal, a second driving signal and a third driving signal, respectively. The generator is configured to generate the first driving signal, the second driving signal and the third driving signal, so as to vibrate the needle in accordance with a predefined pattern.

Controlling vibration patterns of a phacoemulsification needle

A system includes signal acquisition circuitry and a processor. The signal acquisition circuitry is configured to receive multiple intra-cardiac signals acquired by multiple electrodes of an intra-cardiac probe in a heart of a patient. The processor is configured to extract multiple annotation values from the intra-cardiac signals, to select a group of the intra-cardiac signals, to identify in the group one or more annotation values that are statistically deviant in the group by more than a predefined measure of deviation, and to visualize the annotation values to a user, excluding the statistically deviant annotation values.

Using statistical characteristics of multiple grouped ECG signals to detect inconsistent signals

Growing community of inventors

Haifa, Israel

Vadim Gliner