An anti-reflux nasogastric tube includes a tube body and a positioning sleeve. The tube body has a first end and a second end. The first end has an opening. The second end has at least one hole. The opening communicates with the at least one hole through a pipeline. The positioning sleeve is disposed at the opening and has a socket part and an outer edge. The outer edge is located at one end of the socket part. The outer diameter of the outer edge is larger than the inner diameter of the nostril of the human body. Thus, the present invention allows the anti-reflux joints to be stuck in the nasal cavity of the human body by the structure of the positioning sleeve, and does not need to adhere the tube body to the cheek of the human body by adhering, thereby reducing the patient's discomfort and increasing the aesthetic appearance and avoiding inadvertent pulling.

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.

A catheter sensor assembly for use in conjunction with electronic catheter guidance systems is provided and includes a catheter and a sensor. 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 digestive tract or respiratory tract of a patient. The sensor includes a carbon dioxide sensor, pressure sensor, or both, and can be located in an air sampling chamber connected to the catheter. The sensor can communicate with a processor to deliver carbon dioxide and/or pressure readings to a display device, which can indicate placement of the catheter in the digestive tract or in the respiratory tract. A catheter guidance system and a method for accurately placing a is also provided.

A naso/orogastric device having backflow blocking means and comprises a naso/orogastric tube sized and shaped for being disposed within the esophagus so that at least a distal end thereof being placed in the stomach lumen of a patient, at least one elastic esophageal body, positioned along the naso/orogastric tube, having a pressure dependent volume, at least one esophageal sensor that detects fluid around at least one segment of the naso/orogastric tube, and a pressure regulator that regulates a pressure within the elastic esophageal body according to the detection.

A butyric acid detection based platform for verifying placement of a patient airway device or a gastric tube comprising at least one of i) a colorimetric based butyric acid detection platform, ii) a bioelectronic sensors based butyric acid detection platform using olfactory receptors, and iii) an IR based butyric acid detection platform. Each platform comprises a housing coupled to the patient airway device or gastric tube whereby flow from the coupled patient airway device or a gastric tube can flow through an internal passage of the housing; and wherein sensors within the housing come into contact with the flow from the coupled patient airway device or a gastric tube, the sensors including at least one of a chemical sensor array including at least one of i) colorimetric based butyric acid sensor, ii) a bioelectronic butyric acid detection sensor using olfactory receptors, and iii) an IR based butyric acid sensor.

Expandable intubation assemblies and methods for using and making the same are provided.

Exemplary embodiments of the disclosure may be drawn to a device having a vessel configured to contain a source of lipids and a chamber fluidly connected to an outlet of the vessel. The chamber may contain immobilized lipase positioned within a flow path in the chamber along which the lipids flow when released from the vessel into the chamber. The device may also include an outlet through which the lipids flow after passing through the chamber.

There is provided an apparatus (100) for monitoring swallowing in a subject. The apparatus (100) comprises a processor (102) configured to acquire, from a motion sensor (104), motion signals obtained from a feeding tube, when placed in the esophagus of the subject. The motion signals are indicative of swallowing motions transmitted along the feeding tube. The processor (102) is also configured to process the acquired motion signals to classify the acquired motion signals as indicative of the subject swallowing healthily or unhealthily.

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.

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.