An imaging system and method include a medical device (102) having a tracking element (106) mounted thereon. An array (109) of transducers is spaced apart from one another for exchanging energy in a subject between tracking element and the array of transducers. A trilateration module (104) is configured to interpret signals sensed between tracking element and the array of transducers to compute times of flight of signals associated with the transducers in the array such that a position of tracking element is determined in at least two dimensions to locate a position of the medical device in a visual image.

Described here are methods and systems for the manipulation of ovarian tissues. The methods and systems may be used in the treatment of polycystic ovary syndrome (PCOS). The systems and methods may also be useful in the treatment of infertility associated with PCOS.

An interventional device (100, 200, 300) includes an elongate shaft (101) having a longitudinal axis A-A′, an ultrasound transducer (102), an adhesive layer (103), and a protective tube (104) formed from a protective tube (104) formed from a heat-shrink material. The ultrasound transducer (102) is disposed on the elongate shaft (101) such that the ultrasound transducer (102) has an axial extent L along the longitudinal axis A-A′, At least along the axial extent L of the adhesive layer (103) is disposed between the ultrasound transducer (102) and the protective tube (104) surrounds the ultrasound transducer (102) and the adhesive layer (103) is disposed between the ultrasound transducer (102) and the protective tube (104).

An ultrasonically actuated medical implement is used in improving medical interventions and in certain instances to the generation of image data, in particular data acquired during a medical intervention or procedure. The medical implement employs a piezoelectric element which causes reciprocation between first and second mass assemblies in order to ultrasonically actuate a probe member and improve the visibility of the probe member to imaging methods. The invention also concerns the visibility of structures in target regions to be imaged and how this may be enhanced using the medical implement of the invention.

The invention relates to a medical device having reduced susceptibility to EMI. The medical device includes a body, a first electrical conductor, a second electrical conductor, a first polarized transducer, and a second polarized transducer. The first electrical conductor and the second electrical conductor each extend along the body. The first polarized transducer and the second polarized transducer are attached to the body such that their outer faces have opposite polarity. Moreover, the first polarized transducer and the second polarized transducer are connected between the first electrical conductor and second electrical conductor either i) electrically in series and with the same polarity; or ii) electrically in parallel and with the same polarity.

Systems and methods for navigating a catheter and delivering a needle to a desired anatomic location are provided. The system includes an injection catheter that includes a needle slidably exposed from, or retracted into, the catheter lumen. The system further includes a first acoustic marker located at a distal end of the catheter and configured to generate an acoustic signal, and a second acoustic marker located at the distal end of the retractable needle and configured to generate an acoustic signal. The acoustic markers allow, in conjunction with a Doppler ultrasound imaging system, identification and navigation of an injection catheter and delivering a needle to a desired anatomic target location.

An interventional device includes a sensor interconnection region (101) for making electrical contact to a sensor (102) disposed on the interventional device. The interventional device includes an electrically conductive elongate shaft, a sensor strip (104), electrical conductors (105, 106), and an electrical shield layer (109). The electrical conductors (105, 106) extend along the sensor strip between a sensor region (111) and a window (112) within which the electrical conductors (105, 106) are exposed. The sensor strip (104) is wrapped around the elongate shaft (103) in a spiral such that the electrical conductors (105, 106) extend along the longitudinal axis (A-A′) within the window (112), and such that an electrical shield contact portion (109′) adjacent the window (112), the window (112), and an exposed portion of the electrically conductive elongate shaft (103′) beyond the wrapped sensor strip provide the sensor interconnection region (101).

Devices, systems, and methods are described including an invasive medical device with a magnetic region. The magnetic region can include a discontinuity in the magnetic region providing a diameter transition, a plurality of spaced magnetic regions can be provided or the magnetic regions can be encoded with data. Systems and methods are described that include ways to read the data.

A may comprise a first optical fiber and an optical interface connected to the first optical fiber. The optical interface may be configured to transfer laser light from the first optical fiber to a second optical fiber in a drill bit. The second optical fiber may propagate the laser light to a face of the drill bit to create an ultrasonic emission.

A sensor device includes a flexible planar strip with a plurality of layers is described. The flexible planar strip is configured to at least partially encapsulate a medical device. The flexible planar strip includes a first dielectric layer, a second dielectric layer, and a patterned conductive layer including a sensor electrode disposed on the second dielectric layer. According to one aspect an ultrasound sensor including a piezoelectric polymer. The ultrasound sensor is disposed on the sensor electrode such that a first surface of the ultrasound sensor is in electrical contact with the sensor electrode and such that a second surface of the ultrasound sensor is exposed for making electrical contact with a medical device.