A medical manipulator system includes a guide instrument having a treatment tool channel, an insertion body inserted into the treatment tool channel, a power source unit attachable to and detachable from the insertion body, a guide rail having a first region corresponding to a state in which the joint part is located in the treatment tool channel and a second region corresponding to a state in which the joint part is exposed from the distal end of the treatment tool channel, and the guide rail guides the power source unit to advance and retract in a predetermined linear direction defined by the first region and the second region, and a regulating part interposed in a boundary between the first region and the second region and the regulating part regulates a movement of the insertion body from the second region toward the first region.

An apparatus for controlling an electroporation catheter is provided. The electroporation catheter includes a distal end, a proximal end, at least one spline extending from the distal end to the proximal end, and a plurality of electrodes arranged on the at least one spline. The apparatus includes a pulse generator coupled to the electroporation catheter, and a computing device coupled to the pulse generator, the computing device operable to control the pulse generator to selectively energize the plurality of electrodes on the electroporation catheter to form an energization pattern.

A method includes receiving a first representation of an internal surface of at least a portion of a wall of an organ of a patient, and a second representation of an external surface of at least the portion of the wall of the organ. The first and second representations are registered with one another. An exploded representation is generated from the first and second representations, that shows both the internal surface and the external surface. The exploded representation is presented to a user.

A system and method for determining a position of a medical device within a body are provided. The system includes an electronic control unit that receives position signals from position sensors of a first type and a second type disposed on the device and applies a filter to each of the position signals to obtain filtered estimated positions for each sensor. The unit computes a spline connecting the position sensors of the first type responsive to the filtered estimated positions for the sensors and estimates a spline position for the sensor of the second type along the spline. The unit generates maps between the spline position and filtered and unfiltered estimated positions for the sensor of the second type and determines actual positions for the sensors of the first type responsive to the filtered estimated position for the sensors and a composite map of the two maps.

Devices, systems, and methods of the present disclosure are directed to generating three-dimensional surface representations of an anatomic structure such as a heart cavity. More specifically, a three-dimensional surface representation of the anatomic structure is constrained relative to one or more anchor portions corresponding to received input regarding the location of anatomic features of the anatomic structure. The resulting three-dimensional surface representation includes salient features of the anatomic structure and, therefore, can be useful as visualization tool during any of various different medical procedures, including, for example, cardiac ablation.

An illustrative electrode locating system directs a first electrode on an electrode lead to generate an electrical pulse after being inserted into a cochlea of a patient during an insertion procedure to insert the electrode lead into the cochlea. The electrode locating system then directs a voltage to be detected between a second electrode of the electrode lead that has not yet been inserted into the cochlea and a ground contact that is to remain external to the cochlea after the insertion procedure. Based on the voltage detected between the second electrode and the ground contact, the electrode locating system determines that the second electrode has not yet been inserted into the cochlea. Corresponding systems and methods are also disclosed.

A system and method for localizing medical instruments during cardiovascular medical procedures is described. One embodiment comprises an electromagnetic field generator; an antenna reference instrument adapted to be introduced into the heart of a subject and including at least one electromagnetic sensor and at least one electrode; at least one roving instrument adapted to be introduced into the thorax cavity of the subject and including at least one electrode; and a control unit configured to determine position coordinates of the antenna reference instrument based on an electromagnetic signal from the electromagnetic field generator sensed by the electromagnetic sensor, measure an electrical-potential difference between the electrode of the antenna reference instrument and the electrode of the roving instrument, and calibrate the measured electrical-potential difference using the determined position coordinates of the antenna reference instrument to determine position coordinates of the roving instrument.

An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.

An apparatus for emitting a field comprising a core, a conductive winding with a first end, a second end, and an intermediate portion, where the conductive winding surrounds a portion of the core and is wound about a winding axis, a protrusion for aligning the apparatus where the protrusion is parallel with the winding axis, and a conductive connector extending from the conductive winding, wherein the conductive connector is electrically coupled with the conductive winding at the intermediate portion.

A system includes signal acquisition circuitry, an oscillator circuit, and a processor. The signal acquisition circuitry is configured to receive from an intra-cardiac probe multiple intra-cardiac signals acquired by multiple electrodes of the probe, and to further receive a common ground signal for the multiple intra-cardiac signals. The signal acquisition circuitry is further configured to digitize the intra-cardiac signals relative to the common ground signal so as to produce multiple digital signals. The oscillator circuit is configured to generate an Alternating Current (AC) signal and to apply the AC signal to the common ground signal provided to the signal acquisition circuitry. The processor is configured to detect the AC signal in the multiple digital signals, and to assess, based on the detected AC signal, respective qualities of physical contact between the electrodes and cardiac tissue.