A long, thin, flexible medical apparatus, a kit including such an apparatus, and a method for employing the apparatus to assist in placing a distal portion of a lumen of a gastric tube in a stomach of a mammal. The apparatus comprises an elongate body portion, a handle portion fixed to a proximal end of the body portion, and a distal tip portion fixed to a distal end of the body portion. An ability to insert the body and distal tip portions into the gastric tube over the length of the long, thin, flexible structure provides a positive indication that the lumen is not blocked, obstructed, or otherwise compromised over that length. pH indicator sensors may be retained by the distal tip portion to exhibit a verifiable color change in response to contact with a predetermined subject fluid, such as gastric fluid, lung fluid, or another bodily fluid.

A computer-implemented method of adjusting enteral feeding of a patient by an enteral feeding controller, comprising: computing an estimate of energy expenditure of the patient based on oxygen measurements and carbon dioxide measurements of the patient, computing a target composition and target feeding rate for the enteral feeding according to the computed estimate of energy expenditure, when the target composition and target feeding rate differ from a current enteral feeding composition and feeding rate by a requirement, generating instructions for adjustment, by an enteral feeding controller, of the rate of delivery of the enteral feeding according to the target composition, wherein the receiving the oxygen measurement, receiving the carbon dioxide measurement, and computing the estimate of energy expenditure are performing iteratively for every first time interval, and the generating instructions for adjustment are performed for a second time interval that is larger than the first time interval.

There is provided herein a system and a method for guiding insertion of a gastroenteral tube including: an electromagnetic field generator configured to generate an electromagnetic field covering a treatment area; wherein said electromagnetic field generator is external to the patient; a registration sensor configured to mark anatomic locations on the patient's torso; a gastroenteral tube comprising a tip sensor configured to sense its position and/or orientation relative to the electromagnetic field generator; and a processing circuitry configured to: calculate an orientation of the subject relative to the field generator based on the anatomic locations marked by the registration sensor, load a predefined anatomic map representing a torso; aligning the map based on the anatomic locations marked by the registration sensor, and showing on the map a path of the gastroenteral tube insertion; 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 gastroenteral tube, independent of the subject's movement and independent of deviations in the position and/or orientation of said field generator.

There is provided a system for monitoring a heart of a subject and monitoring impedance-related parameters, comprising: a feeding tube, an electrode disposed(s) on a distal end of the feeding tube, a controller that performs, while the feeding tube is in located in an esophagus and feeding is delivered to a subject via the feeding tube, in a plurality of iterations: continuously measuring voltage at the electrode(s) of the feeding tube, applying alternating current(s) between the electrode(s) of the feeding tube and at least one other electrode, computing impedance measurement(s) from the electrode(s) of the feeding tube according to the applied alternating current(s) and the measured voltage, computing impedance-related parameter(s) based on the impedance measurement(s), terminating the application of the alternating current(s), obtaining an electrocardiogram (ECG) measurement based on the voltage measured at the electrode(s) of the feeding tube, and providing the impedance-related parameter(s) and the ECG measurement.

Embodiments generally relate to a device for monitoring air pressure in the body of a patient. The device comprises a tube comprising a feeding lumen; a sensor lumen positioned parallel to the feeding lumen; at least one sensor positioned in the sensor lumen; and at least one perforation positioned to expose the at least one sensor to an air pressure within the body of a patient when the device is positioned at least partially in the airway of the patient. The at least one sensor is configured to generate data related to the pressure to which the sensor has been exposed.

A medical pump, comprising: a fluid housing having a plurality of intake openings, sealed by at least one intake valve, and an outlet opening sealed by an outlet valve; a piston which is sealing the fluid housing and connected to a drive mechanism, the drive mechanism pulls the piston to draw fluid from one of the plurality of intake openings and pushes the piston to discharge the fluid into the outlet opening; and a selecting valve enclosing at least two tubes, each providing fluid to one of the plurality of intake openings, wherein the selecting valve closes one of the at least two tubes while opening another of the at least two tubes.

A medical pump, comprising: a fluid housing having a plurality of intake openings, sealed by at least one intake valve, and an outlet opening sealed by an outlet valve; a piston which is sealing the fluid housing and connected to a drive mechanism, the drive mechanism pulls the piston to draw fluid from one of the plurality of intake openings and pushes the piston to discharge the fluid into the outlet opening; and a selecting valve enclosing at least two tubes, each providing fluid to one of the plurality of intake openings, wherein the selecting valve closes one of the at least two tubes while opening another of the at least two tubes.

A computer-implemented method of adjusting enteral feeding of a patient by an enteral feeding controller, comprising: computing an estimate of energy expenditure of the patient based on oxygen measurements and carbon dioxide measurements of the patient, computing a target composition and target feeding rate for the enteral feeding according to the computed estimate of energy expenditure, when the target composition and target feeding rate differ from a current enteral feeding composition and feeding rate by a requirement, generating instructions for adjustment, by an enteral feeding controller, of the rate of delivery of the enteral feeding according to the target composition, wherein the receiving the oxygen measurement, receiving the carbon dioxide measurement, and computing the estimate of energy expenditure are performing iteratively for every first time interval, and the generating instructions for adjustment are performed for a second time interval that is larger than the first time interval.

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.