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45 results about "Pharyngeal part" patented technology

Dynamic quantification method for swallowing ability based on gel gradient of dissolvable food

InactiveCN120899170ASensorsDiagnostic recording/measuringMicroparticlePharyngeal part
The invention relates to a dissolvable food gel gradient-based swallowing ability dynamic quantification method, which comprises the following steps of: constructing a microstructure unit consisting of an instantaneous surface attachment area and a middle-stage debonding layer in dissolvable food gel, and simulating early-stage sensing delay and middle-stage release response in a swallowing process; different material behavior reactions are generated in the front stage, the middle stage and the rear stage of swallowing by regulating and controlling the hydration diffusion rate, the surface tension and the internal cohesion difference value of the gel, and the gel of each stage corresponds to the set micro-viscosity and release coupling ratio, so that swallowing strategies of different stages are adapted; controllable disintegration temperature-sensing microparticles or traceable microcapsules are partially embedded in the food gel, the food gel is detained in a pharyngeal cavity after being swallowed, and the removal efficiency after swallowing is detected according to migration behaviors within a set time window; after swallowing, the reduction behaviors of the oral cavity, the tongue body and the throat muscle group are monitored, and when the characteristic action of reduction delay, secondary mouth opening, repeated swallowing or pharyngeal itching occurs, it is judged that the swallowing behavior closed loop is interrupted.
Owner:AFFILIATED HOSPITAL OF JIANGSU UNIV

Dysphagia rehabilitation training device

The invention discloses a dysphagia rehabilitation training device which is characterized by comprising a base, a control panel, a water tank, a water pump and a training mechanism. The training mechanism comprises a plurality of electric push rods arranged in a lower cavity of an adjusting frame at equal intervals, a plurality of sleeves are arranged in an upper cavity of the adjusting frame at equal intervals, pistons are arranged at the output ends of the electric push rods and slidably mounted in the sleeves, and a supporting rod of an L-shaped structure is fixedly mounted at the top of the adjusting frame. A peristaltic pipe is arranged at the front end of the supporting rod, a stimulation ball is arranged at the front end of the peristaltic pipe, a plurality of air pipes are connected to the interior of the peristaltic pipe, the air pipes are slidably installed in the supporting rod, the tail ends of the air pipes are connected to the top of the sleeve, and a water outlet pipe and a water inlet pipe are arranged at the tail end of the stimulation ball; the water inlet pipe and the water outlet pipe are slidably mounted in the supporting rod; the device can guide the root of the tongue, stimulate the pharynx and train swallowing muscles at the same time.
Owner:THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV

Dynamic monitoring and early warning system for abnormal function of Eustachian tube

The invention relates to the technical field of medical data monitoring and early warning, in particular to a dynamic monitoring and early warning system for abnormal function of Eustachian tube. The system is characterized in that a data acquisition module acquires time sequence data of various eustachian tube state parameters such as tympanic chamber vibration, pharyngeal vibration and tympanic chamber air pressure, when a human body is yawn or swallowed, the eustachian tube is opened, the larger the opening is, the stronger the vibration of the tympanic membrane and the pharyngeal is, and the transmission decibel to an external auditory canal is increased, so that a eustachian tube opening section positioning module analyzes the characteristics to determine the auditory canal opening section; the opening amplitude of the Eustachian tube is accurately obtained, and an opening section is accurately cut out; after the Eustachian tube is opened, the air pressure in the tympanic chamber approaches and tends to the external auditory canal air pressure, the health index analysis module divides an approaching section and a leveling section in an opening section based on the air pressure change consistency, analyzes the air pressure change correlation by fusing multi-aspect information, and obtains health indexes by combining section length difference and air pressure difference characteristics; and finally, monitoring and early warning are performed on the Eustachian tube of the monitored object based on the health indexes in a monitoring and early warning module.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Device for laryngectomised persons

PCT designated stageWO2025242936A1Tracheal tubesTracheaePharynxBiocompatibility
The invention relates to a device (100) for laryngectomised persons, comprising a respiratory prosthesis (120) comprising an adapted tube (122) for connecting to a new incision that is made in the neck and extends to the pharynx at the base of the tongue, and comprising at least one biocompatible membrane (124) for filtering liquids and solids and preventing them from passing through the tube (122), wherein a coupler (126) for coupling to the new incision is connected internally to the distal end of the tube (122) and externally to at least one pipe (130a, 130b) for exterior communication with a tracheostoma coupler (110), which comprises a sealingly and detachably accommodated HME filter (112), such that the new-incision coupler (126) is connected to the tracheostoma coupler (110).
Owner:YSIUM MEDICAL SL

Laryngoscope operation training method and device based on sensor intelligent feedback

The invention relates to the technical field of medical teaching aids, and discloses a laryngoscope operation training method and device based on sensor intelligent feedback, and the method comprises the steps: reconstructing a human body oral cavity simulation model for training, simulating anatomical mechanical gradients including a tongue body, a pharynx and teeth, and obtaining a simulated model; burying pressure sensors with different precisions under the skin of each key part in the simulation model according to the anatomical mechanics of the part; the oral cavity simulation model is connected to carry out laryngoscope operation training, signals of all the pressure sensors are collected in real time and converted into digital signals, key parameters of the pressure signals are obtained through calculation after analysis and processing so as to judge the contact state, and corresponding acousto-optic feedback and alarm are automatically triggered according to the contact position and the contact state. An intelligent sensing network with biomechanical simulation capability is constructed, the contact strength in a laryngoscope operation path is evaluated through a multi-level pressure monitoring and dynamic feedback mechanism, and a quantitative evaluation system of operation quality is established.
Owner:EYE & ENT HOSPITAL SHANGHAI MEDICAL SCHOOL FUDAN UNIV

Ice bag for the pharynx

ActiveCN224403859UPrevention of Postoperative BleedingSolve hard-to-fix puzzlesStructural engineeringPharynx
The utility model provides a pharyngeal ice bag, which comprises a middle ice bag containing sleeve bag, which is a rectangular open-top pocket structure, an ice bag is placed in the middle ice bag containing sleeve bag, the inner part of the ice bag is divided into multiple small compartments, each small compartment contains a polymer gel, and a set of elastic fixing belts, which comprises two pairs of elastic connecting belts arranged on both sides of the middle ice bag containing sleeve bag, the outer surface of the left strap of each pair of elastic connecting belts is provided with a Velcro surface, and the inner surface of the right strap is provided with a Velcro hook surface matched with the Velcro surface. The utility model has the advantages that it is used for preventing postoperative hemorrhage of the pharynx and relieving postoperative pain of patients. The utility model solves the problem that the pharyngeal ice bag is not easy to fix, and the method is simple and practical.
Owner:JINGMEN HOSPITAL OF TRADITIONAL CHINESE MEDICINE

Oropharyngeal airway device based on bite block

ActiveCN224099785URespiratorsPhysical medicine and rehabilitationOropharyngeal airway
The utility model relates to the technical field of medical instruments, and discloses an oropharyngeal airway device based on a bite block, which comprises the bite block, a through hole is arranged on the bite block, an oropharyngeal airway is arranged in the through hole, the oropharyngeal airway comprises a duck tongue opening and a pipeline connected with the duck tongue opening, a breather pipe is arranged on the inner wall of the pipeline, and a clenching part is arranged on the outer wall of the through hole. And a silica gel layer is arranged on the surface of the oropharynx airway. And a flexible bulge is arranged on the clenching part. According to the overall design of the oropharyngeal airway device, the physiological characteristics and clinical requirements of a patient are fully considered, and the rehabilitation process of the patient is promoted in the modes of reducing discomfort, improving the ventilation efficiency and the like. Meanwhile, soft material selection is also beneficial for preventing complications, such as pharyngeal edema, ulcer and the like, possibly caused by long-term use of the oropharyngeal airway. The device can ensure normal breathing of a patient, improves the comfort of the patient, and is suitable for patients needing airway support, such as painless gastrointestinal endoscopy patients.
Owner:DONGGUAN KANGHUA HOSPITAL

Oral cavity attachment tool and halitosis measurement system

A mouth cavity attachment tool (1A) is attachable to a mouth cavity (M) of a person (P) under examination. The mouth cavity attachment tool (1A) includes a partitioning portion (10A) and a gap forming portion (11A). The partitioning portion (10A) partitions a mouth cavity (M) into a first portion (M1) where objects of measurement of halitosis are located and a second portion (M2) communicating with a pharynx (6) of the person (P) under examination. The gap forming portion (11A) is connected to the partitioning portion (10A) and forms gaps (G) in spaces to the objects of measurement. Since the mouth cavity attachment tool (1A) includes the partitioning portion (10A) partitioning the mouth cavity (M) into a first portion (M1) where tooth rows (2) and gums (3) are located and a second portion (M2) communicating with the pharynx (6) of the person (P) under examination, halitosis can be detected accurately.
Owner:I PEX INC

Pincers for taking out foreign matters in lower pharyngeal cavity

The invention relates to a surgical instrument for rapidly taking out large foreign matters on the pharynx and rapidly relieving airway obstruction. The foreign body forceps are generally made of cold steel or high-speed tool steel, and mainly comprise two parts, namely a forceps head and forceps handles. The forceps head and the neck portion are bent downwards in an arc shape by 60 degrees, the head portion is a long oval ring, and teeth are arranged on the inner face. The forceps handle parts are respectively provided with a ring, and fingers can be sleeved in the rings when the forceps are used. The device can help to quickly take out large foreign matters in the pharyngeal cavity, quickly relieve airway obstruction, is convenient to disinfect, can be repeatedly used, and can be widely used for taking out large blocked foreign matters in the pharyngeal cavity in the otolaryngology department, the pediatric department, the emergency department and the like.
Owner:THE THIRD AFFILIATED HOSPITAL OF ZHENGZHOU UNIVERSITY

Ultrasound diagnostic apparatus and control method for ultrasound diagnostic apparatus

Provided are an ultrasound diagnostic apparatus and a control method for an ultrasound diagnostic apparatus capable of accurately evaluating dysphagia. The ultrasound diagnostic apparatus includes: an ultrasound probe; an image formation unit that acquires an ultrasound image of a pharyngeal part of a subject in accordance with an image formation condition by transmitting and receiving an ultrasound beam using the ultrasound probe; a chewing information acquisition unit that acquires chewing information during chewing of the subject; an image formation condition adjustment unit that adjusts the image formation condition on the basis of the chewing information acquired by the chewing information acquisition unit; and a swallowing evaluation unit that evaluates swallowing of the subject, on the basis of the ultrasound image acquired by the image formation unit in accordance with the image formation condition adjusted by the image formation condition adjustment unit.
Owner:FUJIFILM CORP

Supraglottic device

A supraglottic device (SGD) comprising an airway tube (1) extending to a bowl-shaped cuff (2) located at a distal end of the airway tube, the cuff orifice being in the shape of a sealing ring (3) for sealing between the laryngeal and pharyngeal walls, the dorsal portion of the cuff on the opposite side of the cuff aperture comprises at least one open groove (4) on the left or right side of the dorsal portion of the cuff for insertion of a gastrointestinal device through any of the open grooves. Methods and kits for using the supraglottic device are also provided.
Owner:保罗·齐尔伯曼

Neural monitoring methods and systems for treating pharyngeal disorders

ActiveUSRE50905E1ElectrotherapyAuscultation instrumentsDiseasePharyngeal part
Methods and systems for monitoring, preventing and / or treating upper airway disorders such as apnea, dysphagia, reflux and / or snoring are described. The methods and systems monitor the upper airway disorders by processing one or more neural signals obtained from one or more upper airway afferents. Upper airway disorders are prevented and / or treated by delivering one or more stimulations to one or more reflex-related afferents, efferents, muscles, and sensory receptors to manipulate the threshold and / or trigger an upper airway reflex including, but not limited to a swallow reflex and / or a negative-pressure reflex.
Owner:MED EL ELEKTROMEDIZINISCHE GERAETE GMBH

Introducer device

PendingIE20240765A1Enteral tubesOral pharyngeal
The present invention relates to an introducer device for aiding the insertion of an enteral tube into a patient having an endotracheal tube present in the mouth, pharynx and trachea, the introducer device comprising an elongate body with a functional head portion for insertion into the patient’s mouth, the functional head portion being provided with opposing exposed channels to enable removal of the introducer device independently of the enteral tube and endotracheal tube.
Owner:ANDREW MAXWELL

A device and method for the development of pharyngeal muscles

PCT designated stageWO2026005741A1Head electrodesGymnastic exercisingPharyngeal musclesTonsil
An exercise device (1) is provided in the present disclosure. The device (1) comprises a body (10) having a contact surface (11), size and shape adapted to provide mechanical contact with one or more of the soft palate, the lingula, the palatal tonsil, the lingual tonsil and the pharynx when inserted into a user' s mouth along a main axis (A). The present disclosure further provides a method for developing pharyngeal muscles by use of such a device (1).
Owner:BOGAZICI UNIVERSITY

Tongue muscle and pharyngeal muscle pressure measuring and training device and using method

PendingCN121466569ACatheterSensorsPharyngeal musclesResistance training
The invention discloses a tongue muscle and pharyngeal muscle pressure measuring and training device and a using method. The device comprises a pressure measuring controller, a pressure measuring pipe assembly and a pressurizing module. The pressure measuring controller is integrated with a main control module, a display screen, a pressure measuring sensor and function keys; the pressure measuring tube assembly comprises a flexible sensing balloon and a connecting tube, is communicated with the connecting tube through a communication port, and is detachably connected with the pressure measuring joint; the pressurizing module is used for injecting fluid into the sensing balloon and stopping pressurizing after the set pressure intensity is reached, and at the moment, the volume of the fluid in the sensing balloon is not changed. The device supports single-balloon or multi-balloon configuration, synchronous and accurate measurement of pressure of multiple parts of the tongue and the pharynx can be achieved, and a personalized resistance training scheme is set based on measured data. Through closed pressure sensing and real-time data processing, integration of quantitative evaluation and rehabilitation training of the swallowing function is achieved, and the problems that in the prior art, measurement is not accurate, and training lacks feedback are solved.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Device and method for post extubation dysphagia, antibacterial therapy, and detection and drainage of pharyngeal secretions

PendingHK40135174AAntibiosisPharyngeal secretion
A drainage device includes an elongate flexible conduit comprising a proximal end opening, a distal end opening and a lumen disposed therebetween. A multi-layer distal portion coaxially surrounding the lumen and having a porous outer surface layer, a porous interior layer and an intermediate absorbent layer therebetween. A drainage system and a device and method for treating dysphagia are also disclosed.
Owner:YALE UNIVERSITY

Pharyngeal ventilation equipment for anesthesiology department

The invention belongs to the technical field of medical instruments. In order to solve the problems that an existing pharyngeal ventilation device is poor in use effect and cannot effectively support the pharyngeal airway of a patient, the pharyngeal ventilation device for the anesthesiology department comprises a two-section type pharyngeal ventilation pipe, an upper cleaning mechanism, a lower cleaning mechanism and a supporting mechanism. The upper cleaning mechanism and the lower cleaning mechanism can be used for cleaning sputum and other pharyngeal secretions on the inner walls of the two end openings of the two-section type pharyngeal breather pipe, the pharyngeal secretions are prevented from blocking the breather pipe, meanwhile, the supporting mechanism is used for protecting the pharyngeal trachea of a patient, and the situation that the two-section type pharyngeal breather pipe is extruded and then the end openings are closed is avoided; the ventilation effect of the whole device is ensured.
Owner:BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY

Devices, systems, and methods for treating disease using electrical stimulation

ActiveUS12582821B2Spinal electrodesHead electrodesPharynxPharyngeal part
Electrical stimulation devices and associated systems and methods are disclosed herein. In some embodiments, the electrical stimulation device comprises an elongated member configured to be orally or nasally inserted into a patient's pharynx. The device may further include a conductive element carried by a distal portion of the elongated member and configured to deliver stimulation energy to nearby tissue. A stiffness of the elongated member may vary along its length to facilitate insertion of the elongated member through the nasopharyngeal junction and provide a restoring force necessary to hold the conductive element in apposition with tissue at the treatment site.
Owner:PHAGENESIS LTD

Pharyngeal ventilation equipment for anesthesia

PendingCN121265920ATracheal tubesRespiratory masksAnesthesiaPharyngeal part
The invention provides pharyngeal ventilation equipment for anesthesia, and relates to the field of surgical auxiliary instruments, and the pharyngeal ventilation equipment is characterized by comprising a mounting plate and a suction cup, a pipeline interface is fixed in the middle of the mounting plate, and a sealing seat is fixedly arranged on the outer side of the pipeline interface in a sleeving manner and used for being matched with a mouth shape for fitting connection; a connecting port is formed in the side, away from the sealing seat, of the mounting plate, a fixing ring is in threaded connection with the outer side of the connecting port and used for externally connecting and fixing a breather pipe, the two sets of suction cups are symmetrically arranged on the two sides of the suction cups and arranged in the direction of the sealing seat, and a movable plate is connected to the side, away from the sealing seat, of each suction cup. The two sides of the movable plate are rotationally connected with the overturning plate through movable pins, and the inner side of the overturning plate is provided with a through hole and connected with a hose which is used for controlling adsorption of the suction cup. The device has the advantages that the connecting and fixing effect of the breather pipe and a patient can be improved, meanwhile, equipment operation is facilitated, and the overall use feeling is improved.
Owner:LIUZHOU CITY HEALTHCARE HOSPITAL FOR WOMEN & CHILDREN

Bilateral tongue base repositioner

InactiveUS20260090905A1Snoring preventionTongue rootOral appliance
A bilateral tongue base repositioner holds the lateral borders of the tongue base inferiorly and anteriorly by means of lateral tongue base contacting pads located at the posterior ends of a wire framework that rotates around and slides through slots at the posterior ends of the buccal walls of an upper oral appliance. The contour of the lateral tongue base contacting pads is flat transversely, with an inferior and anterior facing concavity. The inferiorly and anteriorly facing surfaces of the lateral tongue base contacting pads also have an intricately textured tongue gripping surface provided by transversely oriented grooves with anteriorly slanted walls that grip the tissue on top of the sides of the tongue base to prevent it from slipping posteriorly into the pharynx. The wire framework comprises two antero-posteriorly oriented arms that are connected posteriorly by a transverse member. Each arm has an anterior end that is bent sharply inward (medially) to engage an apertured positioning plate attached to the buccal wall of the upper oral appliance. The anterior ends of the arms can be forced laterally out of one set of apertures and shifted into a different set of apertures to adjust the position of the lateral tongue base contacting pads.
Owner:SUMMER JOHN

Auxiliary fixator for tracheal intubation of rats and mice

The invention discloses an auxiliary fixator for tracheal intubation of rats and mice, and belongs to the technical field of animal experiment equipment, the auxiliary fixator comprises a support with an adjustable inclination angle, a front fixing plate is arranged on the front side of the support, an elastic bandage with an adjustable position is arranged on the front side of the front fixing plate, and the elastic bandage is used for fixing the trunk of an animal. The front side of the front fixing plate is further provided with a position-adjustable rotary fixing arm, the end of the rotary fixing arm is provided with a neck fixing device, the neck fixing device is used for fixing the neck of an animal, the center of the neck fixing device is provided with a lamp, the top of the front fixing plate is provided with a position-adjustable suspension fixing device, and the suspension fixing device is used for fixing teeth of the animal. The trunk of the mouse is fixed through the elastic binding band and prevented from swinging; the neck fixing device is used for fixing the neck of the animal; the hanging fixator is used for fixing teeth of a mouse, the lamp is tightly attached to the skin of the pharynx for illumination, a tracheal orifice can be clearly seen through the oral cavity, intubation operation is fast and accurate, and an operator can operate the device by one person without assistance of an assistant.
Owner:BEIJING JIATUO PHARM RES CO LTD

Foreign matter taking-out device for ear-nose-throat head and neck surgery

PendingCN121549902AEar treatmentDiagnosticsThroatLarynx
The invention relates to the technical field of medical instruments, and particularly discloses an ear-nose-throat head and neck surgery foreign matter extraction device which comprises a fixing frame, the inner wall of the fixing frame is rotationally connected with a set of symmetrical clamping jaws, the side faces, close to each other, of the clamping jaws are jointly and fixedly connected with a set of tension springs, and the upper surface of the fixing frame is fixedly connected with a connecting cover. An abutting structure used for abutting the set of clamping jaws to enable the set of clamping jaws to be kept in an open state is arranged in the fixing frame, and the abutting structure comprises a top frame hinged to one side face of each clamping jaw. Through the cooperation of the flexible rod assembly, the clamping jaw and the abutting structure, when the clamping jaw stretches into the cavity, the clamping jaw can smoothly advance in the bending direction of the cavity through the flexible cylinder, it is ensured that the clamping jaw is always aligned with the area where foreign matter is located, scraping between the clamping jaw and the pharynx and the laryngeal mucosa is avoided, abutting of the abutting structure to the clamping jaw can be relieved through the pull rope, and the clamping jaw can be prevented from being damaged. And therefore, the foreign matter is clamped by the clamping jaws, and the efficiency of taking out the foreign matter is further guaranteed.
Owner:QINGDAO MUNICIPAL HOSPITAL

Dual-lumen nasopharyngeal airway

ActiveCN309786969SNasopharyngeal airwayNasal foramen
1. The name of the design product: double channel nasopharyngeal airway. 2. The use of the design product: for placing from the nostrils into the pharynx of a patient, creating a temporary artificial respiratory airway for the patient. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.
Owner:TIANJIN MEDIS MEDICAL DEVICE CO LTD

A device for treating snoring

ActiveCN224269564Uprevent movementprevent snoringSnoring preventionTongue rootPalate muscle
This invention provides a device for treating snoring, comprising a support segment with a connecting segment at its tail end. The support segment is composed of multiple elastic keels, each connected at its tail end to the connecting segment. Each elastic keel expands outwards when the support segment is extended. It also includes an insertion tube, which is hollow and allows the support segment to retract and be placed within it. The support segment, which can be inserted into the pharynx for further expansion, opens the airway and prevents snoring caused by soft palate or pharyngeal collapse. After the support segment is delivered to its position via the insertion device, the device is dislodged, allowing the support segment to expand and support the soft palate or posterior tongue root. Alternatively, it can be delivered to a designated location via a delivery tube, and by pulling the inner core outwards, the elastic keels of the support segment bend and expand to support the soft palate or posterior tongue root, thus opening the airway and treating snoring. This method does not require removal of the soft palate and therefore does not affect the patient's eating.
Owner:ZHONGSHAN HOSPITAL AFFILIATED TO FUDAN UNIV XIAMEN HOSPITAL

Airway topicalization applicator apparatus

PendingUS20260041858A1RespiratorsAnaesthesiaAcute angleGlottis
An applicator apparatus has a delivery tube with differently curved tube sections along the length of the delivery tube so as to be tailored for airway topicalization during video laryngoscopy. The apparatus aims to enhance the precision and effectiveness of airway topicalization, particularly in scenarios where conventional applicators encounter challenges due to the acute angle of the laryngoscope blade. By conforming to the shape of the video laryngoscope, a sigmoidal shape of the delivery tube facilitates precise targeting of glottic structures and the posterior pharynx. This innovation is particularly beneficial for short procedures requiring endotracheal intubation, as proper topicalization is known to reduce coughing and bucking on extubation, mitigating potential surgical complications and minimizing the aerosolization of respiratory particles and viruses.
Owner:DEBACKER JULIAN WILLIAM

Built-in sputum bag

PendingCN122229689ASpittle receiving devicesHuman bodyPharyngeal part
This invention relates to the field of medical devices, specifically to an internal sputum collection bag, which solves the problem of patients being too weak to properly expel sputum in related technologies. The internal sputum collection bag has a structure consisting of five parts: the main body of the bag is divided into a drainage port 1, a tube body 2, and a tube bottom 3, as shown in Figure 1 of the instruction manual; additionally, there is a fixing device 4 and a connecting device 5. The fixing device 4 is used to fix the sputum collection bag, which can be fixed to the neck or the oral cavity; the connecting device 5 is used to connect the sputum collection bag and the fixing device 4, and has an adjustable length function, as shown in Figure 2 of the instruction manual. The sputum collection bag is placed in the esophagus in the pharynx, allowing sputum coughed up from the trachea to flow into the sputum collection bag and then be expelled by a suction machine, preventing it from flowing into the stomach and greatly accelerating the patient's recovery.
Owner:刘会杰

Interface

ActiveUS12714815B2Physical medicine and rehabilitationPeak inspiratory flow
A user interface having a non-sealing nasal cannula and a mask arranged about the nasal cannula, the mask including a seal configured to seal with a user's face to allow the interface to be pressurised, the cannula configured to deliver breathing gases to the nares of a user at a flow rate exceeding the intended user's peak inspiratory flow requirements so that the mask and the user's pharynx are flushed continuously with fresh breathing gases to reduce dead space.
Owner:FISHER & PAYKEL HEALTHCARE LTD