There is provided herein a system and a method for an insertion device positioning guidance system comprising: an electromagnetic field generator configured to generate an electromagnetic field covering a treatment area; a reference sensor configured to be positioned, within the treatment area, on the subject's torso, the reference sensor is configured to define a reference coordinate system representing the position and orientation of the subject's torso relative to the field generator; a registration sensor configured to mark at least a first and a second anatomic locations relative to the reference coordinate system; and a processor configured to operate the field generator, read signals obtained from the reference sensor and the registration sensor, calculate a position and orientation thereof relative to the field generator, generate a 3D anatomic map representing the torso of the subject and the first and second anatomic locations, the processor is further configured to facilitate visualization on the 3D anatomic map of a position, orientation and/or path of a tip sensor, located in a distal tip section of the insertion device, with respect to the first and second anatomic locations, independent of the subject's movement and independent of deviations in the position and/or orientation of the field generator, thus determination of a successful medical procedure is facilitated.

A method of estimating a spatial relationship between at least a part of a patient esophagus and a heart chamber, including: measuring at least one electric parameter at one or more positions within the heart chamber to obtain measured values; and estimating the spatial relationship based on the measured values.

An example assembly for use with a vacuum system and an esophageal positioning device esophageal positioning device includes an introducer, in which the esophageal positioning device includes a handle, a first segment, a second segment and an articulation driving mechanism. The first segment being coupled to the handle. The second segment being pivotally connected to the first segment. The articulation driving mechanism being configured to pivot the second segment about the first segment upon articulation.

There is provided herein a guidance system for positioning an insertion device comprising: an electromagnetic field generator configured to generate an electromagnetic field covering a treatment area, an insertion device comprising an electromagnetic sensor, the electromagnetic sensor configured to receive signals indicative of the electromagnetic field, and a processing circuitry configured to: load an X-ray, CT, ultrasound or MRI image of the subject's chest, mark a location of a first and a second anatomic landmarks on the subject's torso using a registration sensor and obtaining a subject coordinate system based thereon, identify the location of the first and the second anatomic landmarks on the loaded X-ray, CT, ultrasound or MRI image of the subject's chest; aligning the subject coordinate system with the loaded X-ray, CT, ultrasound or MRI image, and display, on the image, a path of the insertion device insertion with respect to the first and the second anatomic locations; wherein the path is generated according to changes in the strength of the electromagnetic field sensed by the tip sensor's during the insertion of the insertion device.

A temperature measurement probe for a patient is provided. The probe includes a sensor assembly and produces a temperature map comprising temperature information for multiple patient locations.

Methods and apparatus for guiding medical care based on sensor data from the gastrointestinal tract are described utilizing an apparatus which can be used with enteral feeding. Generally, the apparatus includes an elongated body having a length configured for insertion into a stomach and at least one pair of electrodes located along the length of the elongated body and positionable for placement within the stomach. A controller in electrical communication with the at least one pair of electrodes is included and the control may also be configured to measure a conductivity or impedance between the pair of electrodes and to determine a gastric residual volume of the stomach based on the measured conductivity or impedance.

There is provided herein a system and a method for an insertion device positioning guidance system comprising: an electromagnetic field generator configured to generate an electromagnetic field covering a treatment area; a reference sensor configured to be positioned, within the treatment area, on the subject's torso, the reference sensor is configured to define a reference coordinate system representing the position and orientation of the subject's torso relative to the field generator; a registration sensor configured to mark at least a first and a second anatomic locations relative to the reference coordinate system; and a processor configured to operate the field generator, read signals obtained from the reference sensor and the registration sensor, calculate a position and orientation thereof relative to the field generator, generate a 3D anatomic map representing the torso of the subject and the first and second anatomic locations, the processor is further configured to facilitate visualization on the 3D anatomic map of a position, orientation and/or path of a tip sensor, located in a distal tip section of the insertion device, with respect to the first and second anatomic locations, independent of the subject's movement and independent of deviations in the position and/or orientation of the field generator, thus determination of a successful medical procedure is facilitated.

There is provided herein a guidance system for positioning an insertion device comprising: an electromagnetic field generator configured to generate an electromagnetic field covering a treatment area, an insertion device comprising an electromagnetic sensor, the electromagnetic sensor configured to receive signals indicative of the electromagnetic field, and a processing circuitry configured to: load an X-ray, CT, ultrasound or MRI image of the subject's chest, mark a location of a first and a second anatomic landmarks on the subject's torso using a registration sensor and obtaining a subject coordinate system based thereon, identify the location of the first and the second anatomic landmarks on the loaded X-ray, CT, ultrasound or MRI image of the subject's chest; aligning the subject coordinate system with the loaded X-ray, CT, ultrasound or MRI image, and display, on the image, a path of the insertion device insertion with respect to the first and the second anatomic locations; wherein the path is generated according to changes in the strength of the electromagnetic field sensed by the tip sensor's during the insertion of the insertion device.

An elongated device and a system that at the same time allow acquisition of temperature-related data of high spatial and temporal resolution from hollow structures together with other relevant data of physical or chemical variables. In a preferred embodiment infrared or visible light sensors are used to obtain thermal or color images from the inner surface during imposed change of the temperature in the lumen of the hollow structure. The disclosure makes it possible to evaluate thermal variations when the inner surface returns to pre-change thermal conditions. High-resolution data can be obtained with the disclosure. The disclosure further includes a system with rotators, injection pumps, a control unit and display operably coupled to one or more of the data acquisition and processing system.

Disclosed are catheter systems and methods of using the catheter system to acquire mucosal impedance data of a patient. Also disclosed are methods of classifying or otherwise identifying esophageal conditions in a subject based on mucosal impedance data acquired using a catheter system. Unlike conventions systems that require subjective input from a physician to render a diagnosis, the systems and methods described herein can utilize the mucosal impedance measurements to generate a probability that the subject's esophagus corresponds to an esophageal condition or a set of esophageal conditions. In one embodiment, a classification model is used to generate the probability. The classification model may generate the probability based at least in part on a change in the mucosal impedance measurements between a distal location and a proximal location on the subject's esophagus.