31 results about "Auditory tubes" patented technology

The risk of inadequate hearing device provision for the hearing-impaired is to be reduced. To this end provision is made to determine the correct fit of the hearing device or the hearing device component in an auditory canal. To this end an acoustic measurement signal is output into the auditory canal. The measurement signal influenced in the auditory canal by the hearing device or the hearing device component is received and compared with a reference signal. Information about the fit of the hearing device is determined from the comparison. This information is transmitted with a status report to an external unit. Objective information about the fit of the hearing device can thus be obtained, particularly in the case of provision for children.

Disclosed is a safety type artery and venous detaining needle having a needle free closed interface, a puncture needle and a protection device are composed of a needle seat shield cover, a puncture needle tube, a puncture needle seat, a puncture needle protection sleeve, a limit rope and a protection spring; the artery and venous detaining needle is composed of a detaining needle soft cannula, a detaining needle guide tube, a detaining needle protection sleeve tube and a detaining needle seat; the needle free closed interface is composed of a detaining needle seat, a seal rubber auditory tube and an interface shell. And the needle free closed interface forms one body with the artery and venous detaining needle group, while the puncture needle and the puncture needle of the protection device puncture thereinto. The invention is formed by the above structures. The invention can actively protect the puncture needle from stabbing the medical care personnel and staff handling the waste; the needle free closed interface is connected with the transfusion connector, and not no to connect with the needle point, so the invention can prevent the blood spilling, avoid the blood pollution, improve the working efficiency and protect the safety of the medical care personnel and patients.

The invention discloses an auditory tube examination and treatment device. The auditory tube examination and treatment device comprises an auditory tube endoscope and a balloon bracket, wherein the auditory tube endoscope comprises a hard endoscope section and a flexible endoscope section; one end of the hard endoscope section is connected with the flexible endoscope section; the balloon bracket is connected with the flexible endoscope section; a balloon is arranged on the balloon bracket. The auditory tube endoscope comprises the hard endoscope section and the flexible endoscope section, so that when the device is used to examine, the hard endoscope section can reach the position to be treated, the phenomenon that the flexible endoscope section is too soft to reach the position can be avoided, and when the flexible endoscope section reaches the position, the balloon can be expanded or shrunk to treat the position. The auditory tube examination and treatment device disclosed by the invention can examine and treat the position at the same time, accurately judges the position to be treated, and achieves the characteristics of accurately understanding the disease position and treating the position.

The invention discloses an auditory-tube-function detecting device and a detecting method thereof, which belongs to technical field of measuring instruments for diagnosis of the various organs, comprising an air pump, a flowmeter and a flow transmitter which is electrically connected with the flowmeter, wherein, the air pump is connected with the flowmeter through a duct, the duct is provided with an air valve, a pressure-reducing valve and a pressure gauge, the tail end of the duct is connected with an ear probe which is electrically connected with a data processing system, the data processing system is electrically connected with a nose probe and is electrically connected with the flow meter through the flow transmitter, the inside of the ear probe is provided with a sound receiver and a pressure sensor, the inside of the nose probe is provided with a sound generator; the invention is integrated with a plurality of detecting methods, can simultaneously and respectively conduct sound detection and pressure detection for the auditory tube function, provides more accurate data for direct, rapid, and comprehensive assessment of the auditory tube function, and the invention becomes conventional means of detection for clinic.

Disclosed is an artificial auditory tube that is a therapeutic instrument useful for the treatment of eustachian tube dysfunction including stenosis of the eustachian tube (occlusion of the eustachian tube), patulous eustachian tube, closure defect of the eustachian tube, and “floppy tube”. The artificial auditory tube consists of a tubular body having a proximal end to be placed protruding out of the tympanic membrane within the external auditory canal and having a distal end to be inserted from the tympanic cavity into the eustachian tube and placed through the isthmus and facing the inside of the cartilaginous eustachian tube, the distal end and the proximal end communicating with each other through an internal cavity extending in the axial direction of the tubular body, the internal cavity opening to the outside through a first opening located in the distal end portion, and the external diameter falling in the range of from 0.35 to 3.0 mm, wherein the artificial auditory tube includes a second opening defined in the wall of the tubular body and positioned in the region ranging from 9 to 30 mm away from the distal end and communicating with the internal cavity of the tubular body.

The invention relates to a device for fixing at least one temperature sensor to an animal, intended to be placed in the auditory canal of an animal. According to the invention, such a device comprises a first portion (31, 41, 51, 61, 71) defining at least one seat (311, 411, 511, 611, 711) for receiving at least one temperature sensor and means for transmitting at least one temperature value, and a second portion (32, 42, 52, 62, 72) forming a spring, the first portion and / or the second portion being configured to bear on at least two separate zones of the auditory canal of the animal, said second portion (42, 52) comprising at least one leaf spring, and said first portion (41, 51) being a helical element connected to said at least one leaf spring.

The invention relates to gastrodin in-situ gel for treating inner ear diseases, wherein the inner ear diseases include meniere disease, sudden deafness and vestibular neuronitis. The gastrodin in-situ gel is characterized by being composed of the components in parts by weight: 10-20 parts of gastrodin, 0.3-0.8 part of ion-activated gel material, 0.5-2 parts of transfer accelerant, 0.02-0.05 part of preservative and 100 parts of purified water. The in-situ gel provided by the invention is suitable for intranasal administration and capable of remarkably increasing the efficiency for transferring gastrodin from the auditory tube to the inner ear and greatly increasing the local bioavailability of gastrodin to the inner ear.

The invention relates a traditional Chinese preparation for treating the obstruction of auditory tube and ear pain symptom under warm climate condition, in particular to a traditional Chinese preparation for preventing and treating the obstruction of an otology auditory tube and the ear pain symptom under the warm climate condition. The traditional Chinese preparation comprises the following components in formula: radix bupleuri, pueraria root, nutgrass galingale rhizome, dried orange peel, grassleaf sweelflag rhizome, leaf of paniculate microcos, pollen, ligusticum wallichii, platycodon root, mint, green tea medicinal ingredients and a packaging material which form a traditional Chinese formula. The traditional Chinese formula is of herbal tea, oral liquid, teabag and granular preparation which can be used for smoothing the auditory tube under the warm climate condition. The traditional Chinese preparation can be used for treating diseases such as obstructed auditory tube, eardrum retraction, acute otitis media, chronic otitis media, obsolete otitis media, exudative otitis media, pus ear, internal and external ear pain, or distention in the ear, strepitus aurium, ear plug, ear block, autophonia and succussion splash in ear which are possibly caused or generated by internal and external ear infectious pain, suppurative otitis media, suppurative mastoid bone inflammation, obsolete type mastoid bone inflamemation, internal and external ear pyogenic infection and non-infected penetration otiatrics otiatry under the warm climate condition.

The invention discloses an ear pressure balance adjusting device. The ear pressure balance adjusting device comprises an earplug part and an adjusting part, wherein the earplug part is used for plugging an external ear; the adjusting part is connected with the earplug part; the interior of the earplug part is provided with a transition cavity which is communicated with an external auditory meatus;the interior of the adjusting part is provided with a balance cavity, one end of the balance cavity is connected with the transition cavity, and the other end of the balance cavity is connected withexternal atmosphere; an air flowing limiting structure is arranged in the balance cavity and is used for reducing the speed of air flow. The ear pressure balance adjusting device has the advantages that by arranging the air flowing limiting structure for simulating air flow characteristics of auditory tubes, the speeds of air flows in the cavities of two sides of an ear drum are approximately thesame during takeoff and landing of an aircraft, the pressures at both sides of the ear drum are maintained balance, and the discomfort of the ears is greatly decreased; the ear pressure balance adjusting device can be used for a patient in a high-pressure oxygen cabin, and the discomfort of the ears due to pressure change in the high-pressure oxygen cabin is avoided.

The invention discloses a low-cost multifunctional stethoscope. The low-cost multifunctional stethoscope includes a stethoscope head piece, a chest piece and a heating box; the stethoscope head piece includes stethoscope earplugs and ear tubes, the ear tubes are connected with an auditory tube, the tail end of the auditory tube is provided with a control module, the control module is connected with a stethoscope metal rod, the stethoscope metal rod is connected with an MEMS microphone and a bell-shaped stethoscope head, the midpoint of the heating box is provided with a chest piece placement portion, the side face of the chest piece placement portion is provided with a temperature sensor, the lower end under the chest piece placement portion is provided with a heating module, the heating module mainly includes two parts, namely a resistance heating wire and a temperature control chip, and the resistance heating wire and the temperature control chip are connected through a copper wire. According to the low-cost multifunctional stethoscope, specific auscultation can be conducted by using bell-shaped stethoscope heads different in type according to the auscultation requirement, the heating box is used for pre-heating the chest piece, the discomfort of a user when the stethoscope makes contact with the user is reduced, functions are rich, and the production cost is relatively low.

The risk of inadequate hearing device provision for the hearing-impaired is to be reduced. To this end provision is made to determine the correct fit of the hearing device or the hearing device component in an auditory canal. To this end an acoustic measurement signal is output into the auditory canal. The measurement signal influenced in the auditory canal by the hearing device or the hearing device component is received and compared with a reference signal. Information about the fit of the hearing device is determined from the comparison. This information is transmitted with a status report to an external unit. Objective information about the fit of the hearing device can thus be obtained, particularly in the case of provision for children.

The invention discloses an ear nerve activating TV therapy, comprising the steps of 1, carrying out pharmaceutical intervention, to be specific, intervening with different therapeutic drugs according to different symptoms, intervening the focus directly with an acoustic frequency therapy apparatus, with high acting speed and good therapeutic effect for restoring auditory nerve activity, so that hearing can be recovered quickly, and tinnitus can be eliminated; 2, carrying out acoustic conduction therapy, to be specific, transmitting physiological pulse waves, like atmospheric pressure, constantly to the tympanic membrane to enhance the functionality of the auditory tube, so that sound-conducting functionality of the tympanic membrane and ossicular chain is enhanced and improved through the physical principle of pumping and vibrating the tympanic membrane, and the objective of the therapy is achieved. Pharmaceutical intervention is performed and different drugs are prepared according to the different symptoms; the auricular point is directly intervened; the cooperation with acoustic frequency therapy helps the drugs intervene the focus the most directly and the most effectively. The ear nerve activating TV therapy is an efficient therapeutic means of a combination of traditional Chinese medicine and western medicine and combination of the tradition and modern; desired results are produced through 1 to 2 courses of tinnitus treatment with the ear nerve activating TV therapy.

The invention relates to the technical field of medical instruments, in particular to a temperature adjustable auscultator which comprises ear clips, auditory ducts, an auscultation head, a control cabinet, an audio processing unit and a temperature control unit. Two ends of the auditory tubes are respectively connected with the ear clips and the auscultation head, the control cabinet includes a single-chip microcomputer, and the single-chip microcomputer is provided with a crystal oscillator timing module; the audio processing unit comprises an audio receiver and earplugs, the audio receiveris located in the auscultation head, the ear plugs are connected with one ends, away from the auditory ducts, of the ear clips, and the audio receiver and the ear plugs are respectively electrically connected with the single-chip microcomputer; the temperature control unit comprises a heater and a temperature sensor, the heater and the temperature sensor are located in the auscultation head, and the heater and the temperature sensor are respectively electrically connected with the single-chip microcomputer. By the arrangement, temperature of the auscultation head can be adjusted, a timing function is achieved, and convenience is brought to disinfection of the auscultation head.

The invention relates to a method of face mask (or nose mask) forcing breathe opening eustachian tube which using the face mask of mouse and nose to pressurize respiratory tract more than aeration resistance of eustachian tube with non body countermeasure, and then loading the gas of face mask into middle ear cavity to prevent and cure middle ear negative pressure illness.

The present invention relates to an intra-auditory stent for treating insufficiency of the auditory tube, and the intra-auditory stent for treating insufficiency of the auditory tube according to the present invention is characterized by comprising: a pressure control unit which closes the auditory tube and is opened and closed in accordance with the difference in pressure between the front and back so as to control the pressure in the auditory tube; and an auditory tube expansion part which is formed by being connected to the pressure control part, forms a through hollow through which a fluid moves in the front-rear direction of the auditory tube, is implanted in the auditory tube, and expands the auditory tube by deforming in the radial direction of the auditory tube.

The invention discloses a pediatric clinical diagnostic apparatus which comprises a diagnostic mechanism and a spacing adjusting mechanism, and the spacing adjusting mechanism is arranged on the diagnostic mechanism. According to the spacing adjusting mechanism, the doctor selects an inner threaded hole with a proper height to adjust the distance between auditory tubes to a proper position, a protective sleeve is arranged at the joint of a sound guide tube and a branch tube, the joint is effectively prevented from being broken, the service life is prolonged, a heating assembly is arranged on an auscultation sensor, the situation that the auscultation sensor is used at a low temperature, and discomfort of children is increased is avoided, the outer sides of the earplugs are provided with the sealing earmuffs, the listening accuracy of a doctor is guaranteed, interference of external noise is prevented, cartoon patterns are arranged on the outer sides of the sound guide tube and the branch tube, attention of a child during diagnosis is distracted, anxiety and panic of the child when the doctor uses the diagnostic instrument are prevented, the head fixing assembly is arranged on the auditory tube, the diagnostic instrument is convenient to fix, and, in addition, the elastic band can be conveniently cleaned and replaced.

A method of increasing eustachian tube patency in human patients is disclosed wherein a eustachian tube targeting nasal administration device is utilized to deliver a surfactant / propellant mixture to the nasopharyngeal stoma of the auditory tube. The targeting capability of the administration device obviates the need for a spreading agent that would otherwise be required to enable at least a portion of surfactant to reach the eustachian tube orifice. More specifically, the non-targeting, indiscriminate delivery provided by nasal administration devices of the past required surfactant to spread over non-targeted tissue it was inadvertently applied to in order to reach the eustachian tube stoma. In addition, a method for treatment of otitis media is disclosed utilizing, in some preferred embodiments, a therapeutically active agent.

The embodiment of the invention provides a respiration control assembly and ventilation treatment equipment, the respiration control assembly comprises a collection module, a control module and a gas transmission module, the collection module is in communication connection with the control module, the collection module is used for collecting gas parameters of a user eustachian tube, and sending the gas parameters to the control module; the control module is in communication connection with the gas transmission module, and the control module is used for determining the opening and closing state of the eustachian tube according to the gas parameters and configuring the gas transmission state of the gas transmission module according to the opening and closing state. By means of the technical scheme, air flow conveying to the user can be stopped when it is detected that the auditory tube of the user is opened, air conveying is conducted again when it is detected that the auditory tube of the user is closed, and therefore the health hidden danger generated when the user uses the respiration control assembly is eliminated.

The invention relates to a novel application of baricitinib in treatment of psychological abnormality and obesity, in particular to application of baricitinib in preparation of a medicine used for treating psychological abnormality diseases and the obesity. The medicine comprises the baricitinib, at least one medicine carrier and at least one non-medicine carrier. The medicine comprises external auditory canal suspension medicine application, and the external auditory canal suspension medicine application is characterized in that the medicine disclosed by the invention is implanted into microporous slow-rebound sponge earplugs, then, the earplugs are plugged into external auditory canals of double ears, and the medicine is applied through ear canal wall ear hair cells and auditory tubes by medicine information induction or odor wave transmission, toxic and side effects of the medicine can be reduced, and safety is improved.

The invention discloses a medical auscultator for pediatrics, belongs to the technical field of medical appliances, and in particular relates to a medical auscultator for pediatrics. The medical auscultator for pediatrics comprises an ear auscultation device, a sensing device, a tool box, an electronic flash memory device, a cartoon sleeve, a ring-holding lifting handle and a compression spring, wherein the ear auscultation device is installed in the top position of an auscultation head; the compression spring is arranged in the middle position of a sound induction tube; the sensing device is arranged in a lower position of an auscultation sensing box; the tool box is installed on an auditory tube; the electronic flash memory device is installed in the lower position of the auscultation sensing box, the ring-holding lifting handle is arranged in the left side position of the auscultation sensing box, and the cartoon sleeve is installed in the middle position between the auscultation sensing box and the ring-holding lifting handle. According to the medical auscultator for pediatrics, the ear auscultation device, the electronic flash memory device and the sensing device are arranged, thereby being favorable for convenient use, preventing falling, being safe and reliable, perfecting the functional diversity, improving the working efficiency of medical personnel and further reducing the manufacturing cost.

The invention provides an artificial tympanum. The artificial tympanum comprises a support body and an elastic body, the elastic body is capable of vibrating under the action of sound waves, the elastic body is used for supporting an artificial auditory ossicle, the support body is placed in the tympanum and supports and fixes the elastic body to corresponding position, the support body is fixedlyconnected with the elastic body, and the elastic body supports the artificial tympanum in a specific direction. The provided artificial tympanum can be applied to situations of auditory tube afunction and occupation of the tympanum by scar tissues, the artificial tympanum is implanted into a tympanum where an aerated cavity cannot be reconstructed, the entire tympanum is occupied, tympanum adhesion can be prevented by the support body, a tympanic cavity is occupied, and the scar is prevented from filling up the entire tympanum; and the tympanum composed of the support body and the elastic body replaces the original tympanum cavity, and the combination of the elastic body and the artificial ossicle is used for replacing the tympanum and a human ossicular chain to complete transmission of sound to an inner ear.

The invention discloses a multifunctional stethoscope, which comprises an ear clip listening tube, a listening tube, an auscultation head, an electronic timer, a thermometer and a nylon buckle, one end of the ear clip listening tube is connected to one end of the listening tube, and the The other end connects the auscultation tip, and the auscultation tip is circular, and the back side of the auscultation tip is provided with an electronic timer, and the electronic timer is embedded in the back side of the auscultation tip, and one end of the listening tube connected to the auscultation tip is outward Stretching, the outwardly extending end of the listening tube is connected to a thermometer, and a nylon buckle is arranged between the listening tube and the auscultation head. When the multifunctional stethoscope measures the patient's heartbeat, the stethoscope head is placed on the patient's heart, and the electronic timer is used so that the doctor can observe the time while auscultating. For discomfort caused by temperature difference, the nylon buckle can be used to fold up the stethoscope, and the thermometer can be used interchangeably with the stethoscope, making it easy for doctors to carry.

The invention relates to a ventilation drainage tube for an inferior nasal meatus auditory tube tympanum. The ventilation drainage tube comprises an indwelling hose and fixing pieces, wherein the indwelling hose is integrally in a circular tube shape; one end of the indwelling hose is provided with an inferior nasal meatus tube opening, and the other end of the indwelling hose is provided with a tympanum tube opening; two fixing pieces are arranged on the edge of the tympanum tube opening; a certain angle (generally 90 degrees) is prefabricated between the fixing pieces and the indwelling hose; the inferior nasal meatus tube opening is located in the inferior nasal meatus close to the anterior nostril; most of the indwelling hose is located in the auditory tube; and the fixing pieces are located at the auditory tube tympanum opening of the tympanum. The ventilation drainage tube for the inferior nasal meatus auditory tube tympanum provided by the invention has good auditory tube ventilation and drainage effects; medicine spraying, air injection and flushing can be carried out from the front nostrils through the lower nasal meatus tube opening, and the recovery condition of the auditory tube can be observed from the front nostrils; and the ventilation drainage tube for the inferior nasal meatus auditory tube tympanum can be used for treating chronic exudative otitis media, refractory recurrent secretory otitis media, various sequelae caused by eustachian tube disorders, abnormal auditory tube opening, auditory tube stenosis and the like.

The invention discloses an endoscope and a detection instrument. The endoscope comprises a main body which is of a hollow structure and is provided with an inner cavity, a photosensitive outer film coated on the peripheral side of the main body, light emitting arrays arranged between the photosensitive outer film and the main body, and an imaging pipeline fixed in the inner cavity along the axial direction of the main body. When all the areas of the light emitting arrays emit light in sequence, the positions, corresponding to the light emitting areas of the light emitting arrays, on the photosensitive outer film creep in sequence. When the endoscope is used for examining a focus in a human body such as an auditory tube or an ear canal, the light emitting arrays at different positions are controlled to emit light in sequence, so that the photosensitive outer film deforms and creeps outside the main body, the main body is driven to move in the body of a patient, the condition of the focus is recorded through the imaging pipeline, secondary injury caused by misoperation of personnel is effectively avoided, and the safety of the patient is protected.

The invention discloses a multi-auditory-head temporomandibular joint stethoscope for teaching, and relates to the technical field of medical treatment, according to the multi-auditory-head temporomandibular joint stethoscope for teaching, an auditory tube is installed on one side of an auscultation contact piece, an identification structure is installed on the outer side of the auditory tube, an ear tube is arranged at one end of the auditory tube, and an earplug is installed at one end of the ear tube; a loudspeaking structure is installed on one side of the auscultation contact piece, the identification structure comprises an identification box, a containing groove is formed in the upper end of the identification box, and a connecting cover is arranged at the upper end of the identification box; in the teaching process of the stethoscope, the identification structure enables the use condition of the stethoscope and the information label of a user to be placed in the containing groove, meanwhile, the identification structure can move along the outer side of the auditory tube, follow-up maintenance and use of the stethoscope are facilitated, and the working efficiency of the stethoscope is improved; and the loudspeaking structure can broadcast the bouncing sound of the temporomandibular joint part of the patient in real time, so that students can better understand the difference of different bouncing sounds in the teaching process to find out the classification and reason of lesions.

The present invention relates to the technical field of medical instruments, in particular to an ear-mounted stethoscope, which includes a listening tube, and the middle position of the listening tube is fixedly connected with a rubber tube, and the other end of the rubber tube is fixedly connected with a connecting block. The lower end of the block is rotatably connected with a lower rubber tube, and the other end of the lower rubber tube is fixedly connected with an auscultation head; the listening part, the listening part includes earplugs fixedly connected to the outer circumference of the two ends of the listening tube, and the earplugs The upper part is fixedly connected with a profiling rod adapted to the human ear; the conductive part, the conductive part includes two fixed strips fixedly connected to the two ends of the connecting block, and the two fixed strips are fixedly arranged with the listening tube limit; the protective The protection part includes a fixed block fixedly arranged on the outer circumferential surface of the lower rubber tube; to solve the problem that the ear sinus and the ear canal are not tightly sealed when the stethoscope is auscultated, and the cotton wool, fiber or dust of the clothing will block the ear tube of the stethoscope.

A method of increasing eustachian tube patency in human patients is disclosed wherein a eustachian tube targeting nasal administration device is utilized to deliver a surfactant / propellant mixture to the nasopharyngeal stoma of the auditory tube. The targeting capability of the administration device obviates the need for a spreading agent that would otherwise be required to enable at least a portion of surfactant to reach the eustachian tube orifice. More specifically, the non-targeting, indiscriminate delivery provided by nasal administration devices of the past required surfactant to spread over non-targeted tissue it was inadvertently applied to in order to reach the eustachian tube stoma. In addition, a method for treatment of otitis media is disclosed utilizing, in some preferred embodiments, a therapeutically active agent.

The invention provides a snore stopping device based on an expansion type silencer, firstly, the technical scheme is provided from the angle of eliminating the fruit of the causal relationship of snore, the expansion type and active type mixed silencing mode is adopted, and the the technical defects that the noise elimination performance is reduced and the bandwidth is insufficient when the active mode is in a medium-high frequency band and the expansion mode is in a medium-low frequency band are overcome, and the beneficial effects of being wide in applicability, large in noise elimination amount, wide in noise elimination bandwidth, small in size, light in weight and low in electric energy consumption are achieved. Secondly, the active silencing module and the expansion chamber are detachably connected, and the problem that peculiar smell is generated due to breathing when the expansion chamber is cleaned is solved; finally, the control module further comprises an audio bypass module, sound waves converted from audio are transmitted to the inner side of the eardrum through the nasal cavity, the auditory tube and the middle ear cavity, vibration of the eardrum is caused and a person has hearing, and the problem that the earphone is prone to falling off when the person wears the earphone in the sleeping prone position is solved.

The invention discloses an embedded adjustable nasopharyngeal flusher. The embedded adjustable nasopharyngeal flusher comprises a handheld device, a positioning dial plate and a multi-directional / unidirectional flushing pipe. According to the embedded adjustable nasopharyngeal flusher, the flushing pipe is directly placed in the nasopharyngeal cavity through the nasal cavity, a flushing fluid directly flushes the nasopharynx, and since the flushing fluid flows from inside to outside, the flowing direction of the flushing fluid is consistent with the discharge direction of snot, thereby furtheraccording with the principle of physiological functional science of the human body; through personalized setting of use parameters, the water outflow direction and angle are controlled, thereby beingcapable of avoiding dizziness, secretory otitis media, even deafness and other complications which are caused by the fact that the flushing fluid flushes the middle ear through the auditory tube to the maximum extent. The embedded adjustable nasopharyngeal flusher comprises two types of flushing pipes, wherein the sector multi-directional flushing pipe can meet the needs of daily flushing, especially be suitable for patients with poor effects after the nasopharyngeal flusher is in use; the unidirectional flushing pipe can directionally flush an important part of the nasopharynx, especially besuitable for patients with nasopharyngeal ulcer.