34 results about "Nasopharyngeal cavity" patented technology

Methods for cerebral and systemic cooling via a patient's nasopharyngeal cavity are described. In one method, a cooling assembly is inserted into a nasal cavity through a patient's nostril. A substantially dry gas is delivered through a lumen of the catheter onto the surface of the patient's nasal cavity. Evaporative heat loss cools the patient's nasal cavity. If additional cooling is needed, a liquid coolant is delivered through a separated lumen of the catheter. The liquid coolant is nebulized at a plurality of delivery ports on the distal end of the catheter and is delivered onto the surface of the patient's nasal cavity in combination with the dry gas. The dry gas enhances evaporation of the nebulized coolant and additional cooling is provided from the evaporative heat loss of the liquid coolant.

An inflatable nasopharyngeal stent is disclosed along with a method of using same. The stent comprises a central tube having a lumen defining a central inner chamber. A plurality of inflatable spokes are disposed along the central tube. The spokes are in fluid communication with the inner chamber of the central tube and are preferably aligned in groupings along the central tube. The outer ends of the spokes connect to a rib. The un-inflated stent is inserted into the nasal passageway through a naris and positioned such that so that a portion of the device is proximal to an anatomic structure exhibiting undesirable inflammation, configuration, growth or motility. Once positioned, the stent is inflated. Upon inflation, the ribs and adjoining web members move outwardly from the central tube and press upon the tissues of the nasopharyngeal cavity. Spaces between the inflatable spokes permit the passage of air along the stent and maintain airway patency.

The invention discloses an oral and nasal cavity esophagus conductor which comprises a nasal cavity duct and an elastic leading core, wherein the nasal cavity duct is placed into a nasopharyngeal cavity so as to establish a channel at an external naris and a rear naris outlet, then the elastic leading core can be fed into an oral cavity from the rear naris outlet under the leading of the channel; the elastic leading core is fed into the oral cavity under the leading of the nasal cavity duct, and is temporarily connected with a nasobilliary duct after moving out of the oral cavity, then the nasobilliary duct can be fed into the nasal cavity from the rear naris outlet and is led outside the nasal cavity from the outer naris. A leading cavity is formed in the nasal cavity duct, the head end of the leading cavity is bent in a J-shaped manner, and an included angle of 15-90 degrees is formed between a long axis of the elastic leading core after being led outside the leading cavity under the leading of the J-shaped bending of the head end of the leading cavity and a long axis in the leading cavity. The elastic leading core is a light guiding rope of which the surface is coated with a reflecting material; an elastic ring body is arranged at the head end of the elastic leading core. The oral and nasal cavity esophagus conductor is simple in structure, convenient to use, safe and effective, a bile duct can be rapidly and effectively led into the nasal cavity after the nasobilliary duct is embedded under an endoscope, pain of a patient can be reduced, and operation difficulty of medical operators can be reduced.

The invention discloses a mouth opening training device for a patient with nasopharyngeal carcinoma or limitation in mouth opening after nasopharyngeal carcinoma radiotherapy. The device comprises a mouth opening training component (1) and an operation component matched with the mouth opening training component (1), and is characterized in that the mouth opening training component (1) is a cone with a thick end and a thin end; the operation component is formed by rigidly fixing an operation handle (3) and a connecting piece (2); and the connecting piece (2) is connected with the mouth opening training component (1) in such a manner that the connecting piece (2) and the mouth opening training component (1) can move relatively in the axial direction. The technical problem to be solved by the invention is how to provide a simple mouth opening training device for the patient with nasopharyngeal carcinoma or limitation in mouth opening after nasopharyngeal carcinoma radiotherapy, the mouth opening training device can be carried about and used by a user at any time and is simple to operate and convenient to use and clean, and furthermore, the pollution to the mouth opening training component caused by direct contact with the hands of the patient is avoided.

Described herein is a head cooling system comprising: a source of compressed breathable gas; a vortex tube comprising an inlet, a hot gas outlet and a cold gas outlet, the inlet operably connected to the source of compressed breathable gas; and an interface for delivering cooled gas to a nasopharyngeal cavity in fluid communication with the cold gas outlet. The head cooling system may be used in a method to reduce neurodegeneration in a subject, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease. The head cooling system may also be used in a method to prophylactically protect a subject at risk of neurodegeneration, for example neurodegeneration from ischemia, anoxia, cardiac arrest, trauma or neurodegenerative disease.

The invention provides a nasopharynx flusher which comprises a liquid storage bottle, a pressurizing device and a flushing hose with a flushing hole in the end. The flushing hose is a three-way tube and comprises a head part for liquid output, a middle part for liquid guiding and two tail parts for liquid feeding. An arc face is arranged at the top end of the head part, the flushing hole is formed in the top end of the head part of the flushing hose, and an airbag is arranged at the joint of the head part and the middle part. The middle part comprises a cleaning liquid channel and a pressurized fluid channel separated from the cleaning liquid channel. Hand touch scales protruding outwards are arranged on the outer surface of the middle part. The tail parts comprise the first tail part communicated with the flushing hole through the cleaning liquid channel and the second tail part communicated with the airbag through the pressurized fluid channel. The liquid storage bottle communicates with the first tail part through the pressurizing device, the pressurizing device is a liquid pump, and a check valve is arranged in the second tail part. The nasopharynx flusher is easy and convenient to use, can flush the nasal cavity and the nasopharynx, and can carry out hemostasis by compression to deal with the situation that the pharyngonasal cavity bleeds.

A noninvasive, brain cooling method and device for cerebral cooling via a patient's nasopharyngeal cavity, is described. Thermal conductive nasal prongs are inserted into a nasal cavity and are cooled by thermoelectric cooling elements. An outward air driving fan inside the device drives a cold air current through the nasal and oral cavities. Heat transfer between the cold air and the surface of the nasal cavity cools the nasal cavity, which in turn, cools a patient's brain. Real-time temperature sensing data provides feedback for closed-loop cooling control.

A device / system and method for the delivery of light to the nasopharyngeal cavity in a controlled and reproducible mariner using at least one optical fiber having a linear diffusing tip, a spherical diffusing tip, or a bare cut end is disclosed. A positioning device may have one or two flexible guide tubes that are attached to a preformed shaped base that is introduced into the nasopharyngeal cavity to guide and position the optical fibers and / or detector(s). The optical fibers are enclosed within shielding tubes which are inserted into the guide tubes. The optical fibers may be further movedwithin the shielding tube so as to adjust the amount of output light. Also included within the guide tube is a light detector that monitors, detects, and measures the delivery of fluence rates to pre-determined locations in the nasopharyngeal cavity. The detector may also be enclosed within a separate tube within the guide tube. The inventive device / system also has a means of shielding pre-selected areas of the nasopharyngeal cavity or adjacent tissues from the light delivered by the optical fibers. The system of the present invention uses a control unit and preselected treatment parameters to monitor, regulate, and display laser output and fluence rates at preselected locations in the nasopharyngeal cavity during PDT treatment.

The invention relates to the technical field of antibacterial liquid, and in particular relates to an antibacterial liquid used for nasopharyal meatus and a preparation method thereof. The antibacterial liquid per liter is prepared from the following raw materials: 1.7 to 1.9g of dialkyl quaternary ammonium salt, 30 to 60ml of glycerinum, 0.1 to 1.3g of menthol, 0.9 to 3.0g of sodium chloride, 5 to 8g of extracts of traditional Chinese medicine, and the balance of purified water. The antibacterial liquid adopts a plurality of raw materials capable of clearing heat, dispelling wind, relieving sore throat, resisting inflammation, resisting bacteria and easing pain; all the raw materials supplement each other and develop the synergism to realize the characteristics of the best antibacterial performance, short treatment course and quick return of the antibacterial liquid. The biocompatibility of the antibacterial liquid meets the requirement of GB / T 16886.11-2011, and the microbiological indicator meets the requirement of GB15979-2002. The antibacterial liquid is applicable to control and nursing of nasal infection, oral infection, throat infection, various acute (chronic) rhinitis, pharyngitis, auditory meatus inflammation, dental ulcer, and skin and mucous membrane wound infection, and can be used for promoting the healing of the wound and reducing the postoperative infection.

The sampler comprises a sampling probe, a telescopic piece and a sampling test tube, the sampling probe is connected with the telescopic piece, the sampling test tube comprises a containing cavity, the containing cavity is provided with a first opening, the telescopic piece is arranged at the first opening and seals the containing cavity, and the telescopic piece and the sampling test tube are both made of elastic materials; when the sampling test tube is in an initial state, the telescopic piece and the sampling probe are accommodated in the accommodating cavity; when the sampling test tube is pressed, the telescopic piece drives the sampling probe to extend out of the accommodating cavity for sampling. The sampling probe is connected with the telescopic piece, and the telescopic piece can drive the sampling probe to sample by pressing the sampling test tube; the sampling probe can be driven to retract into the sampling test tube through the telescopic piece by releasing the sampling test tube. The telescopic piece is of a flexible structure, the sampling head is driven by the telescopic piece to sample, stimulation of the sampling probe to the nasopharyngeal cavity in the sampling process can be reduced, the experience of a sampled person is improved, and meanwhile the sampling success rate is increased.

A chemiluminescent system for detecting the presence of influenza virus in a biological fluid sample is provided. An influenza diagnostic kit is provided which includes (1) a sampling device for obtaining the biological fluid from a subject, (2) a chemiluminescent substrate material which, in the presence of influenza virus in the biological sample, will generate a chemiluminescent product that will produce detectable light, and (3) a means for detecting any generated light. A liquid sample containing the biological fluid, and preferably a diluent, are contacted with the an absorbent material containing the chemiluminescent substrate material. The substrate responds to neuraminidase activity intrinsic to influenza A and influenza B virus particles, such that when the substrate is in contact with influenza virus, the substrate is cleaved to yield a chemiluminescent product that then decomposes to produce light which can then be detected. The chemiluminescent substrate materials include enzymatically triggerable 1,2-dioxetane derivatives of 4-alkoxy-N-acetylneuraminic acid and 4,7-dialkoxy-N-acetylneuraminic acid. The system is sufficiently simple that it can reliably be used by a layperson in a nonmedical setting. The biological fluid generally originates from the oral cavity, the pharyngeal cavity, or the nasopharyngeal cavity.

The invention discloses a guide core type tongue posterior falling prevention low-oxygen catheter and application, and relates to the technical field of medical instruments. The catheter comprises a catheter unit, a connector unit and a supporting guide core. The catheter unit comprises a hollow hose capable of being used for nasopharynx ventilation; the connector unit comprises a connector head end and a connector tail end, the connector head end is detachably connected with the first connector, and the connector tail end is used for being connected with external equipment; the supporting guide core comprises a second connector and a flexible guide core with flexibility, and the flexible guide core comprises a plurality of movable joint modules which are sequentially connected end to end; during intubation, the soft guide core forms a bent shape matched with the nasopharyngeal cavity by adjusting the connecting angle between the movable joint modules. Steering adjustment is carried out through the soft guide core to guide the catheter to form a matched shape, the nasal mucosa damage and bleeding occurrence rate and the implantation success rate are remarkably reduced, operation is convenient, and external equipment can be conveniently connected.

The invention discloses an adjustable nasal cavity cleaner, which belongs to the technical field of nasopharyngeal cleaning. The bottle body, the upper end of the bottle body is provided with a flushing component, and the bottle body is provided with an infusion device; the flushing component includes a cleaning head corresponding to the nasal vestibule nostrils, a cleaning tube that can extend along the cleaning head, and is used for sliding the cleaning tube to make the cleaning tube extend. The cleaning head has a sliding bar; the extended end of the cleaning pipe is provided with a cleaning port, an optical lens and an LED light, the cleaning port is connected to the infusion device through the flushing channel in the cleaning pipe, and the optical lens is connected to the bottle body through the optical fiber in the cleaning pipe. For the display screen on the side wall, the cleaning head is provided with an annular spray port corresponding to the extension of the cleaning pipe. The invention can manually control the cleaning of the thick material deep in the nasopharyngeal cavity, thus facilitating the recovery of nasopharyngeal cancer patients after treatment.