St Jude Medical, Atrial Fibrillation Division, Inc

Frank Callaghan

John William Sliwa

Stephen A Morse

Timothy Edward Ciciarelli

Zhenyi Ma

Jennifer Teng

Peter Goetz

John Anderson Hauck

Valtino X Afonso

Jeff A Schweitzer

John P Goetz

Michael W Craven

Holly Cotner

John Schultz

An imaging system includes a display, an x-ray based image acquisition device, a workstation, and a medical device, e.g., a catheter. The image acquisition device is configured to obtain real-time two-dimensional images of a portion of a patient's body that is disposed within the field of view of the image acquisition device. The workstation is configured to integrate and register a three-dimensional model of an anatomic structure with the two-dimensional image, and to provide the display with a real-time image of the integrated image. The catheter includes a distal portion that comprises a radiopaque material. The image acquisition device is further adapted to apply radiation at a first dosage rate that is below a second dosage rate sufficient to detect anatomic structures.

Reduced radiation fluoroscopic system

A high intensity focused ultrasound transducer includes an ultrasonic emitter having a surface that emits ultrasonic energy along a beam path, at least one low attenuation polymeric ultrasonic lens acoustically coupled to the surface in the beam path of the ultrasonic energy, such that the lens can direct the ultrasonic energy in at least one direction, and at least one stress mitigation feature, such as a kerf, a heat sink, or an acoustic matching layer, to mitigate thermal expansion mismatch stresses within the transducer. For manufacturing simplicity, the first surface is typically either flat or monotonically curvilinear. The lens may take a variety of shapes, including Fresnel features, and may focus, collimate, or defocus the ultrasonic energy. Any orientation and positioning of the at least one ultrasonic lens relative to the first ultrasonic emitter is contemplated. Manufacture is further simplified by molding, casting, or thermoforming the lens.

Device and method for high intensity focused ultrasound ablation with acoustic lens

High intensity focused ultrasound transducer with acoustic lens

A medical system for finding and displaying the location of electrodes within the body. The electrodes may be used to measure the voltage on the heart wall and display this as an activation map on a geometry representing the heart chamber.

Method and apparatus for catheter navigation and location and mapping in the heart

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Blaine, MN, United States of America

Frank Callaghan