Biosense Webster (israel) Ltd.

Biosense Webster, Inc.

Acclarent, Inc.

Christopher Thomas Beeckler

Assaf Govari

Eduardo J Jimenez

Joseph Thomas Keyes

Kevin Justin Herrera

Andres Claudio Altmann

Rowan Olund Hettel

Athanassios Papaioannou

Yehuda Algawi

Vadim Gliner

Yaron Ephrath

Ilya Sitnitsky

Maribeth Esguerra Wilczynski

Alexander David Squires

Ariel Garcia

Kendra Anita McInnis

Moe Habib Bishara

Nader Ghaly

Eid Adawi

Xiangming Zhang

Jetmir Palushi

Jeffrey William Schultz

Mario A Solis

Dean M Ponzi

Arnold Cruz Tuason

John H Thinnes, Jr

Don Q Ngo-Chu

Rogelio Plascencia

Kevin Mark Okarski

Meir Bar-Tal

Thomas V Selkee

Kristine B Fuimaono

George L Matlock

Fatemeh Akbarian

Henry F Salazar

Athanasios Papadakis

Ella Ozeri

Yigal Ultchin

Marc Dean

Ygal Zucker

Aviva Goldberg

Lee Ming Boo

Justin George Lichter

Julie M Taylor

Reecha Sharma

Susan Ayer

Betzi Zafra

Zhong Wang

Robert B Stagg

Shubhayu Basu

Shahram Moaddeb

Itzhak Fang

Ehsan Shameli

Assaf Cohen

Babak Ebrahimi

Shiva Sharareh

Tom Allen Ditter

Michael Olen Zirkle

Chad Allen Lieber

Behnam Amin

Amiram Sheiner

Itai Doron

Hany Abdelwahed

Madison K Vanosdoll

Illya Shtirberg

Krishna Murthy Rajan

Zulema Berenice Espinoza

Jiayin Liu

Alison D Wright

Don Q Ngo-chu

Philippa Hill

A balloon catheter that has one or more ultrasonic transducers to map a body cavity and to measure thicknesses of walls in the body cavity during an ablation procedure. The balloon of the catheter is deployable through a lumen into the body cavity with a flexible printed circuit board that has a first side attached to the exterior wall of the inflatable balloon and a second side opposite the first side. There is also provided an ultrasonic transducer mounted on the first side of the flexible printed circuit board and encapsulated between the exterior wall of the balloon and the flexible printed circuit board. A method of making or using the balloon catheter is also provided.

Balloon catheter with ultrasonic transducers

A catheter apparatus, including an elongated deflectable element, a distal assembly, a force sensor disposed between the elongated deflectable element and the distal assembly, and comprising a spring including a tube with at least one helical cut extending around a circumference of the tube, the at least one helical cut including deviations extending in a longitudinal direction of the tube, the deviations being configured to prevent overstretching and overbending of the spring.

Contact force spring with mechanical stops

In one embodiment, a system includes a balloon catheter configured to be inserted into a body-part of a living subject, the balloon catheter comprising an insertion tube having a distal tip, a force sensor connected to the distal tip, and an inflatable balloon including a proximal portion connected to the force sensor so that the force sensor is disposed between the distal tip of the insertion tube and the inflatable balloon, and multiple electrodes disposed around an outer surface of the balloon, and configured, when the balloon is inflated, to contact tissue at respective locations in the body-part, wherein the force sensor is configured to output at least one force signal indicative of a magnitude and a direction of a force applied by the balloon on the tissue when the balloon is inflated.

Balloon catheter with force sensor

A system includes an indifferent electrode, electrical switching circuitry, and a processor. The indifferent electrode, which is configured for placement on a body of a patient, includes multiple electrically-conducting sub-electrodes that are electrically-insulated from one another. The electrical switching circuitry is configured to receive a control signal that specifies a selected subset of the sub-electrodes, and in response to electrically connect the selected subset, so as to close an electrical circuit passing through the body of the patient. The processor is configured to determine a required surface area of the indifferent electrode, select the subset of the sub-electrodes that together have the required surface area, and instruct the electrical switching circuitry to electrically connect the selected subset of the sub-electrodes.

Indifferent electrode with selectable area

A medical instrument includes a shaft, multiple flexible spines and multiple electrodes. The shaft is configured for insertion into a body of a patient. The multiple flexible spines have respective first ends that are connected to a distal end of the shaft and respective second ends that are free-standing and unanchored. The spines are bent proximally such that the second ends are more proximal than the first ends. Each of the flexible spines includes a tensile layer configured to cause the flexible spine to bend proximally. The multiple electrodes are disposed over the flexible spines.

Flexible multi-arm catheter with diametrically opposed sensing electrodes

A medical probe includes an insertion tube for insertion into a patient body, at least an arm, which is attached to a distal end of the insertion tube, at least a reference electrode coupled to the arm, and multiple electrodes, which are coupled to the arm, surround the reference electrode and are configured to sense electrical signals of body tissues that, when measured relatively to the reference electrode, are indicative of anatomical signals in the patient body.

Mapping ECG signals using a multipole electrode assembly

A flexible probe has an assembly in its distal end that includes a compressible spring, the compressible spring arranged in a helix having flat surfaces with at least one leg at each end of the spring. The compressible spring is configured to deform in response to a compressive force acting against the legs at the ends of the spring from pressure exerted on the distal tip when engaging a wall of the body cavity. The compressible spring further includes at least one flexible transmitter coil disposed on the flat surface at one end of the spring and at least one flexible receiver coil on the flat surface at the other end of the spring. The at least one of flexible receiver coil is configured to receive signals from the at least one flexible transmitter coil for sensing a position of the coils relative to each other.

Reduced size force sensor

A method includes, in a processor, receiving signals from (i) a first position sensor disposed on a shaft of a catheter, and (ii) a second position sensor disposed on a distal end of a sheath of the catheter. Based on the signals received from the first position sensor and the second position sensor, an event is detected in which an expandable distal-end assembly of the catheter is being withdrawn into the sheath while still at least partially expanded. A responsive action is initiated in response to detecting the event.

Verifying proper withdrawal of catheter into sheath

A catheter includes an insertion tube, a flexible substrate and one or more electrical devices. The insertion tube is configured for insertion into a patient body. The flexible substrate is configured to wrap around a distal end of the insertion tube and includes electrical interconnections. The electrical devices are coupled to the flexible substrate and are connected to the electrical interconnections.

Catheter distal end made of plastic tube and flexible printed circuit boards

A method includes inserting an array of multiple electrodes, fitted at a distal end of a catheter, into a cavity in an organ of a patient. The array is brought into contact with an inner surface of the cavity. An input is received from a user, the input specifying one or more tissue segments to be ablated on the inner surface. In response to the input, using a processor, one or more pairs of the electrodes in the array are selected that, when driven with irreversible electroporation (IRE) signals, would ablate the specified tissue segments. The specified tissue segments are ablated by applying the IRE signals to the pairs of the electrodes.

Application of irreversible electroporation (IRE) ablation using catheter with electrode array

A flexible circuit that is substantially planar may be assembled into an electrophysiologic catheter. The flexible circuit may include various location sensing portions and force sensing portions. The flexible circuit may be deformed in a manner that improves the catheter's functionality concerning force feedback and location feedback, and then further deformed to be assembled into a small volume of the catheter.

Flexible circuit with location and force-sensor coils

The subject of this disclosure includes an ablation system for visually supporting a tissue ablation procedure, including a display comprising a user interface; and at least one processor in communication with the display, the at least one processor configured to control one or more of a plurality of electrodes of a radiofrequency balloon catheter to ablate organ tissues of one or more targeted pulmonary veins; determine a characteristic, based on ablation parameters of the radiofrequency balloon catheter, of pulmonary vein isolation (PVI) success rate; and present, on the display, visual information corresponding to each electrode for an indication, based on the characteristic, for PVI success rate.

Systems and methods of ablating cardiac tissue

Apparatus for medical treatment, consisting of a probe and a processor. The probe has an insertion tube having a distal end configured for insertion into a body cavity of a living subject, and a basket assembly having multiple resilient spines coupled to the distal end of the insertion tube and joined together in a predefined form when the basket assembly is unconstrained by external forces. The probe also has a force sensor configured to output an indication of a force exerted on the basket assembly within the body cavity. The processor is configured to receive the indication of the force, to compute a constrained form of the basket assembly, different from the predefined form, responsively to the force, and to render to a display a graphical image representing the constrained form of the basket assembly.

Cage deformation modeling

A catheter includes a shaft, an expandable frame, a first set of electrodes, and a second set of electrodes. The shaft is configured for insertion into an organ of a patient. The expandable frame is fitted at a distal end of the shaft. The first set of electrodes is disposed over a distal portion of the expandable frame, and configured to be placed in contact with a tissue in the organ. The second set of electrodes is disposed on a proximal portion of the expandable frame, and configured to be inter-connected to form a common electrode.

Printed proximal electrodes of an expandable catheter for use as a common electrode

In one embodiment, a system includes generator coils to generate respective magnetic fields, a catheter including a distal end, which includes magnetic coil sensors to output electrical signals based on detection of the respective magnetic fields, and processing circuitry to receive the electrical signals from the magnetic coil sensors, select at least one of magnetic fields having a magnetic field gradient as a function of at least one of the received electrical signals, compute a difference between magnetic field magnitudes of the at least one selected magnetic field detected by the first magnetic coil sensor and the second magnetic coil sensor as a function of the electrical signals, and compute a dimension of the distal end, based on the difference between the magnetic field magnitudes of the at least one selected magnetic field and the magnetic field gradient of the at least one selected magnetic field.

Measurement of distal end dimension of catheters using magnetic fields

Growing community of inventors

Brea, CA, United States of America

Christopher Thomas Beeckler