A tubing assembly for use with an electronic catheter guidance systems is provided and includes a catheter and a stimulation electrode assembly, and an electrical connection for delivering a stimulation waveform to the stimulation electrode assembly. The catheter extends in a longitudinal direction and has a proximal end and a distal end that define a lumen therebetween. Further, the catheter is configured for placement within a patient's digestive tract. The stimulation electrode assembly is configured to deliver an electrical stimulation to tissue. A catheter guidance system and method for accurately placing a catheter in the digestive tract are also provided.

Disclosed is an NGT system, the system comprises a nasogastric tube having a diameter and length configured to pass through an esophagus such that the lumen of the NGT maintains fluid communication with a portion of the digestive tract, and a digestive tract sensor operatively associated with the NGT, the digestive tract sensor configured to sense from inside the body and transmit signals in response to one or both of conditions relating to nourishment states of the digestive tract, and positioning of the NGT.

A medical device position notification system that includes a differential air pressure sensor is provided. The differential air pressure sensor may be attached to a medical device, e.g. a catheter, that is configured to be inserted into a patient's body. The differential air pressure sensor is configured to alert in real time when at least a portion of the medical device is in the patient's trachea or airway versus the esophagus or gastrointestinal tract. A method for medical device position guidance using a medical device position notification system that includes a differential air pressure sensor is also provided.

A nasogastric probe comprises at least one substantially flexible tubular element of elongated shape, provided with at least one main channel communicating with at least one feeding mouth of nutritive substances or the like, which is arranged at a first end stretch of the tubular element itself, and with at least one delivery mouth of nutritive substances or the like, which is arranged at a second end stretch opposed to the first end stretch and intended to be inserted into the patient's stomach passing through the esophagus; and it comprises pressure detecting means inside the esophagus comprising at least one pressure sensor associated with the tubular element and interposed between the feeding mouth and the delivery mouth.

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 plate sensor configured to be positioned within the treatment area in a location defining an orientation of a subject; 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 said 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 said field generator, read signals obtained from said the plate sensor, said reference sensor and said registration sensor, calculate a position and orientation thereof relative to said field generator, generate a 3D anatomic map representing the torso of the subject and the first and second anatomic locations, said 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 said field generator, thus determination of a successful medical procedure is facilitated.

Enteral tubes, tube tip detection systems, and methods for detecting tube misplacement are provided. For example, a tube tip detection system comprises an enteral tube having a tip and a first light disposed at the tip that is illuminated as the enteral tube is inserted into a patient to indicate to a user of the system whether the tip is misplaced in the patient's airway. Similarly, enteral tubes are provided that comprise a tip, a length, and a light that is continuously illuminated as the enteral tube is inserted into a patient. Methods for detecting a tube misplacement in a patient's airway include embedding a light into an enteral tube, inserting the enteral tube into the patient through the patient's nose or mouth, and monitoring a location of the light as the enteral tube is inserted into the patient to determine if the tube is traveling into the patient's airway.

An apparatus for monitoring for accumulation of lung fluid comprises a feeding tube having first electrode(s) positioned thereon for electrical contact with tissue of an esophagus of a target patient including a lower esophageal sphincter (LES) and/or tissue in proximity to the LES, second electrode(s) sized and shaped for contacting skin of the target patient, and a non-transitory memory having stored thereon code instructions for applying alternating current(s) to pair(s) of first and second electrodes, measuring a voltage over the pair(s), and computing an estimate of a change of lung fluid relative to a baseline in lung(s) of the target patient according to the applied alternating current and measured voltage, wherein the applying, the measuring, and the computing the estimate of the change in lung fluid are iteratively executed for monitoring the target patient for accumulation of lung fluid while the feeding tube is in use.

There is provided feeding tubes including an electromagnetic sensor including a sensor body comprising a core positioned at a distal end of the sensor lumen, and a wire extending along the length of the feeding tube, wherein an RF induced heating of the feeding tube in an MRI environment is below 5 degrees.

A method for predicting transplant-free survival of a patient suffering from acute liver failure (ALF) or acute liver injury (ALI), the method including: performing a .sup.13C-methacetin breath test which includes administering .sup.13C labelled methacetin to the patient; measuring exhaled breath to evaluate changes in a .sup.13CO.sub.2 to .sup.12CO.sub.2 ratio for a predetermined time after the administering; calculating a PDR-peak value of the patient; and predicting the patient as having high chances of transplant-free survival if the calculated PDR-peak value is above a threshold value or as having low chances of transplant-free survival if the PDR-peak value is below threshold value.

A syringe receptacle device for collecting a liquid from an extraction device, a cylindrical barrel, and a plunger. The barrel has an inner circumferential surface that extends between opposite first and second ends. The first end of the barrel is adapted to be removably coupled to the extraction device. The plunger is slidably coupled to the barrel and includes a plunger head and an actuating rod. The plunger head is frictionally engaged with the inner circumferential surface of the barrel. The actuating rod is fixedly attached to the plunger head and extends out through the second end of the barrel.