Abstract: An imaging system includes an ultrasound probe, and an interventional medical device having a tracking device. The ultrasound probe includes an ultrasound transducer to generate an ultrasound field-of-view, a tracking field generator to generate an electromagnetic locator field, and a wireless receiver. The interventional medical device has a distal end portion to which the tracking device is mechanically coupled. The tracking device includes a plurality of tracking coils, a wireless transmitter, and a power supply circuit. The plurality of tracking coils interact with the electromagnetic locator field to determine a location within the electromagnetic locator field and to generate tracking data. The wireless transmitter is configured to transmit the tracking data from the tracking device of the interventional medical device to the wireless receiver of the ultrasound probe. The power supply circuit is configured to supply electrical power to the wireless transmitter of the tracking device.

Abstract: An electromagnetic tracking sensor for use in a medical device includes a flexible hollow cylinder core having an interior surface and an exterior surface. The flexible hollow cylinder core has a magnetic material layer attached to the interior surface of the flexible hollow cylinder core. A wire coil is adjacent to, and circumferentially surrounds, the exterior surface of the flexible hollow cylinder core.

Abstract: A method for treatment of a vascular lesion. A biomarker insertion device introduces a biomarker into a vascular region. The biomarker binds to a lesion type of a plurality of lesion types. Under ultrasound imaging, an image brightness of an imaged biomarker differs based on the lesion type of the plurality of lesion types to which the biomarker binds. An ultrasound imaging probe of an ultrasound imaging system images the biomarker and produces an image brightness of the imaged biomarker. The lesion type is determined based on the image brightness of the imaged biomarker. A frequency of a high intensity focused ultrasound emission of a non-invasive high intensity focused ultrasound device is tuned based on the determined lesion type. The tuned frequency is applied to the vascular lesion, resulting in the destruction of the vascular lesion.

Abstract: A biopsy system includes a biopsy probe configured to sever tissue to acquire a tissue sample. The biopsy probe has biopsy needle portion having a proximal end, a distal end, and a lumen. A vacuum source is coupled to the lumen. The vacuum source is configured to generate a vacuum to transport the tissue sample through the lumen and expel the tissue sample from the lumen at the proximal end of the biopsy needle portion. An arrangement of compression plates is configured to receive the tissue sample from the proximal end of the biopsy probe and is operable to compress the tissue sample. The arrangement of compression plates has a plurality of impedance measurement electrodes. An impedance measurement circuit is connected to the plurality of impedance measurement electrodes.

Abstract: A medical apparatus has a thrombectomy device disposed in a sheath lumen of a sheath that is movable between an initial extended position and a retracted position. The thrombectomy device includes a first elongate cannula having a distal tip, a guidewire lumen, and a perforated region, which is proximal to the distal tip and is in fluid communication with the guidewire lumen. A second elongate cannula, which is configured to rotate, has a second lumen and a mechanical thrombectomy whisk, which is proximal to the distal tip. A third elongate cannula has a third exterior surface, a third lumen, an inflation passageway, an inflatable balloon connected to the third exterior surface, and an expandable embolic filter connected to the third exterior surface at a location distal to the inflatable balloon. The first elongate cannula is disposed in the second lumen. The second elongate cannula is disposed in the third lumen.

Abstract: A peristaltic pump apparatus for a medical device has a housing, a motor, a first peristaltic pump head, a second peristaltic pump head, a first clutch assembly, and a second clutch assembly. The motor is directly connected to the housing and has a rotatable drive shaft. Each of the first peristaltic pump head and the second peristaltic pump head is coupled to the rotatable drive shaft. The first clutch assembly has a first rotor fixedly connected to the rotatable drive shaft and a first stator directly connected to the housing. The first clutch assembly is configured to selectively electromagnetically couple the first rotor to the first peristaltic pump head. The second clutch assembly has a second rotor fixedly connected to the rotatable drive shaft and a second stator directly connected to the housing. The second clutch assembly selectively electromagnetically couples the second rotor to the second peristaltic pump head.

Abstract: A method for treatment of a vascular lesion. A biomarker insertion device introduces a biomarker into a vascular region. The biomarker binds to a lesion type of a plurality of lesion types. Under ultrasound imaging, an image brightness of an imaged biomarker differs based on the lesion type of the plurality of lesion types to which the biomarker binds. An ultrasound imaging probe of an ultrasound imaging system images the biomarker and produces an image brightness of the imaged biomarker. The lesion type is determined based on the image brightness of the imaged biomarker. A frequency of a high intensity focused ultrasound emission of a non-invasive high intensity focused ultrasound device is tuned based on the determined lesion type. The tuned frequency is applied to the vascular lesion, resulting in the destruction of the vascular lesion.

Abstract: An imaging system includes an ultrasound probe, and an interventional medical device having a tracking device. The ultrasound probe includes an ultrasound transducer to generate an ultrasound field-of-view, a tracking field generator to generate an electromagnetic locator field, and a wireless receiver. The interventional medical device has a distal end portion to which the tracking device is mechanically coupled. The tracking device includes a plurality of tracking coils, a wireless transmitter, and a power supply circuit. The plurality of tracking coils interact with the electromagnetic locator field to determine a location within the electromagnetic locator field and to generate tracking data. The wireless transmitter is configured to transmit the tracking data from the tracking device of the interventional medical device to the wireless receiver of the ultrasound probe. The power supply circuit is configured to supply electrical power to the wireless transmitter of the tracking device.