35 results about "Partial larynx" patented technology

The present application relates to the technical field of health monitoring, in particular to a kind of infant asphyxia risk autonomous monitoring method and system based on laryngeal respiratory sound, comprising: utilize high sensitivity MEMS microphone to collect the airflow and respiratory sound signal of infant larynx, and utilize micro accelerometer to monitor the thoracic movement data of infant synchronously;The airflow and respiratory sound signal are denoising, and the denoising respiratory sound signal is obtained;The denoising respiratory sound signal is separated according to respiratory event Signal, and is enhanced and combined into respiratory sound data set;Respiratory sound feature is extracted in respiratory sound data set, and asphyxia anomaly classification model is constructed based on respiratory sound feature by machine learning model, and dynamic baseline model that adapts individual respiratory difference is established according to respiratory sound feature.The present application utilizes the hardware device of high sensitivity MEMS microphone and micro accelerometer and artificial intelligence model to combine, realizes the use of laryngeal respiratory sound signal in home environment and autonomously completes infant asphyxia risk identification and early warning.

The application provides a guide and breathing system for a bronchofibroscope, which comprises a cover body used for covering a throat and forming a closed cover cavity communicating with a trachea in use, and a pipeline structure fixedly connected with the cover body and comprising an endoscope pipeline and a ventilation pipeline which are independent of each other and communicate with the cover cavity, and a drainage pipeline arranged to pass through the inside of the cover body but not communicate with the cover cavity, so as to communicate with an esophagus through a drainage outlet on the cover body in use. When the guide and breathing system is used, the reflux of secretions of a patient during an endoscope operation can be disposed through the independent drainage pipeline, and the bronchofibroscope only occupies part of the space in the laryngeal mask channel in the case of the endoscope operation, so that the patient can inhale sufficient oxygen, and the safety of the patient during the operation of the bronchofibroscope is ensured.

An airway device includes an outertube and a scope channel partially enclosed by the outertube. An intraluminal space in the outertube, not occupied by the scope channel, provides a passageway for air flow to the patient. An esophageal cuff is disposed distally on the scope channel. When inflated, the esophageal cuff secures the airway device in the proximal esophagus of the patient and helps to prevent gastric reflux by mechanically blocking gastric content from entering into the larynx. An inflatable bladder is attached at an anterior surface of the scope channel between the esophageal cuff and a distal opening of the outertube. When inflated, the bladder forms a tubular ring that pushes against the epiglottis and / or other soft tissue towards a wall of the hypopharynx to produce an unhindered air passage into the patient's trachea.

A laryngeal mask airway (LMA) intubation guide for endotracheal intubation procedures and ventilation of a subject, the LMA intubation guide comprising: an elongate body defining a passageway extending between a proximal opening and a distal opening for receiving a blade portion of an intubation device; a laryngeal mask at the distal opening for covering a larynx of the subject; and a ventilation airway extending at least partially along the body, comprising: a ventilation port at a proximal end of the ventilation airway for connection to a ventilator; and a ventilation aperture at a distal end of the ventilation airway for allowing fluid communication between the ventilation airway and the passageway proximate the laryngeal mask, the LMA intubation guide configured for intubation of the subject with an endotracheal tube through the passageway while the subject is ventilated using the ventilation airway.

A rehabilitation treatment device and method for a patient with swallowing dysfunction comprises a liquid bag (8) acting on the throat of the patient with swallowing dysfunction, a supporting frame (7) arranged on the liquid bag (8), a vertical beam (1) arranged on the supporting frame (7), and a fluid pump (91) arranged between the vertical beam (1) and the liquid bag (8). The upper end face of the liquid bag (8) is supported, expansion medium liquid is injected into the liquid bag (8) through the fluid pump (91), and external interference activity acting force is generated on the throat of a patient with swallowing dysfunction through the liquid bag (8). According to the swallowing-dysfunction patient rehabilitation device, slow expansion force generated by viscous liquid acts on the throat of a swallowing-dysfunction patient in the rehabilitation process, the technical problem that the throat of the patient is lifted up through the hands of a doctor is solved, and therefore the rehabilitation treatment effect of the swallowing-dysfunction patient is improved.

This invention provides a method and system for risk warning of dysphagia based on multi-signal analysis. The method includes: acquiring surface electromyography (EMG) signals, bioimpedance signals, laryngeal vibration signals, and neck microenvironment temperature and humidity signals from the wearer's neck using a flexible wearable sensing unit; using the respiratory phase determined by the neck microenvironment temperature and humidity signals as a time reference, performing time alignment and preprocessing on the multimodal physiological signals to obtain multi-channel time-series data; extracting and fusing features from the multi-channel time-series data to generate a discriminative fusion feature vector; inputting the vector into a pre-trained classification model for real-time inference to identify swallowing function states, including effective swallowing, ineffective swallowing, and suspected aspiration; and generating a graded risk warning signal in response to the identified abnormal states. This invention solves the problems of motion artifact interference and time alignment through multimodal signal fusion and respiratory rhythm calibration, achieving accurate and continuous monitoring of dysphagia risk.

A shielded intubation guide for use in an endotracheal intubation procedure, the shielded intubation guide comprising: an elongate body defining a channel for receiving a lens portion of an intubation device extending between a proximal opening and a distal opening, the shielded intubation guide configured for insertion into a mouth portion of a subject such that the proximal opening is positioned proximate the mouth portion and the distal opening is positioned in an airway of the subject; and a shield about the proximal opening for substantially reducing emissions from the mouth portion, the shielded intubation guide allowing an endotracheal intubation to be performed by inserting the lens portion of the intubation device into the channel, positioning a distal end of the lens portion proximate a larynx portion of the subject, and advancing an endotracheal tube along the lens portion through the channel into a trachea of the subject.

The application relates to the technical field of image recognition, and discloses an electronic laryngoscope image recognition method and system based on artificial intelligence. The method comprises the following steps: acquiring a continuous image sequence of a throat region, and recognizing a suspected lesion candidate region in the image through an identification model; acquiring a first image sequence, and judging whether each first candidate region in the first image exists in the sequence; if yes, calculating a motion vector consistency and rigidity degree parameter of the region based on the first image sequence, and judging whether the region is a lesion region according to the parameters; if no, acquiring a subsequent second image sequence, and judging whether the disappeared candidate region appears again; for the candidate region appearing again, calculating related parameters of the candidate region by comprehensively considering the first and second image sequences, and finally judging the candidate region by combining image features. The application can improve the accuracy and reliability of electronic laryngoscope image lesion recognition.

The present application relates to the technical field of three-dimensional image data processing, and particularly relates to a preoperative auxiliary planning MRI image laryngeal tumor three-dimensional reconstruction system. For each voxel point in the initial three-dimensional model of the larynx, the system constructs a preoperative three-dimensional laryngeal image result through tissue image features. In the intraoperative stage, the expected tissue change characteristics are obtained according to the information of the instrument coordinate trajectory in the three-dimensional laryngeal image structure, and compared with the actual tissue change characteristics embodied by the power feedback data sequence of the electrocautery, so as to determine the abnormal type of the tissue under the coordinate trajectory, and update the labeling in the initial three-dimensional model. The present application can effectively identify the abnormal type of the detailed tissue feature area by comparing the expected tissue change characteristics with the actual tissue change characteristics, and then update and render the three-dimensional model in real time through the labeling method, so as to realize the effective response of the intraoperative characteristics.

A laryngeal pacemaker is configured for external placement on skin of a patient to produce respiration stimulation signals. An implantable stimulation electrode delivers the respiration stimulation signals to adjacent target neural tissue for vocal fold abduction during respiration of the recipient patient. A triaxial accelerometer produces a body motion signal reflecting energy expenditure of the recipient patient. A respiration sensor includes a flexible skin-transferrable printed tattoo electrode having a tetrapolar configuration for impedance pneumography measurement to produce a sensed respiration signal for the laryngeal pacemaker. The respiration sensor is configured for transfer and release by guided placement from a sensor applicator to the skin at the angulus sterni of the recipient patient. And the laryngeal pacemaker is configured to interpret the body motion signal and the sensed respiration signal to make a real time determination of respiratory phase and frequency for adaptively adjusting the respiration stimulation signals accordingly.

This application discloses a laryngeal mask airway (LMA), relating to the field of medical device technology. The LMA includes a cuff, an air delivery tube, and an inflation tube. The air delivery tube includes a connector and an air passage, wherein the connector is used to connect to a gas delivery device; one end of the air passage is connected to the connector, and the other end is connected to the cuff; the air delivery tube has an opening, one end of the inflation tube is connected to the opening, and the other end is connected to an inflation port on the cuff; wherein, when the gas delivery device delivers gas to the patient's larynx through the air delivery tube, the gas inflates the cuff through the inflation tube, thus forming a seal between the cuff and the larynx. In this way, during the gas delivery process, the cuff is automatically inflated using gas, eliminating the need for manual operation, reducing the steps and time required by medical personnel, and improving efficiency.

The present application provides a kind of traditional Chinese medicine preparation for treating Tourette syndrome of children with laryngeal abnormal voice as main symptom, the traditional Chinese medicine preparation includes the following weight parts of raw medicinal materials: 8-15 parts of radix isatidis, 3-6 parts of radix sophorae tonkinensis, 10-15 parts of radix puerariae, 6-10 parts of jinyu longan, 6-10 parts of momordica grosvenori, 6-8 parts of platycodon grandiflorum, 3-6 parts of licorice, 5-8 parts of periostracum cicada, 10 parts of radix angelicae, and addition and subtraction according to different indications, the traditional Chinese medicine preparation of the present application can clear lung and stomach heat, benefit throat, block the way of external wind driving internal wind, can rapidly and effectively treat pediatric vocal tic, improve laryngeal voice symptoms, also can treat exogenous heat syndrome sore throat, and the traditional Chinese medicine preparation of the present application is safe, no obvious toxic side effects, suitable for children to take when laryngeal abnormal voice.

This product is a lip piece for nasal breathing during sleep. Traditionally, mouthpieces are worn between the upper and lower teeth inside the mouth, but this lip piece is placed between the upper and lower gums and lips, covering the entire lip, and has a slightly elongated ring shape. It utilizes the principle that even ordinary people can achieve nasal and diaphragmatic breathing by opening their mouths wide like singers. One piece can be fitted to set two sizes, slightly elongated vertically and slightly horizontally. This allows for adjustments to the size of the person's mouth and jaw closure, adjustment of the amount of air, and multi-purpose use such as daytime fitting practice or nighttime sleep use. The material is synthetic resin, and you can choose between a harder (plastic) and a softer (elastomer) version. When this product is worn on the lips, the larynx opens, ensuring an open airway during sleep, allowing for smooth nasal breathing, and preventing snoring and sleep apnea. Furthermore, since it prevents mouth breathing even when the mouth is open, it can prevent various problems associated with mouth breathing. It can be used by a wide range of ages, from infants with underdeveloped lower jaws who grind their teeth, to adults with teeth clenching, dry mouth, temporomandibular joint disorders, and elderly people at risk of aspiration, and is harmless. Once the discomfort of wearing it is overcome, it promotes restful sleep with light and safe nasal breathing. Other benefits include improved blood flow to the muscles around the mouth, while at the same time creating a slight tension in the lips, which is good for blood flow to the brain. The lips relax and the salivary glands work, so saliva is produced, but the structure prevents saliva from spilling out of the mouth. The base of the tongue is more easily moved forward, so the epiglottis (the lid for swallowing) moves. It is also expected to help prevent silent aspiration pneumonia.

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.

The invention discloses a glottis state monitoring method, equipment, a product and a medium, and relates to the technical field of signals. The method comprises the following steps: acquiring a vibration signal of a throat when a user makes a sound; performing frequency domain analysis on the vibration signal to determine a harmonic structure parameter; when the harmonic structure parameter is not smaller than a preset air leakage judgment threshold value, dividing the vibration signal into a plurality of single-period vibration segments; based on the change characteristics of the vibration intensity in each single-period vibration segment, determining impact characteristic parameters; determining asymmetric characteristic parameters based on the distribution characteristics of the vibration time sequence in each single-period vibration segment; determining a first glottis state based on the impact characteristic parameter and the asymmetric characteristic parameter; and when the harmonic structure parameter is smaller than a preset air leakage judgment threshold value, determining a second glottis state. The method has the effect of improving the monitoring accuracy of the glottis state.

The invention relates to the technical field of sound processing, and particularly discloses a throat vibration sensing conversation noise reduction optimization method and system, and an earphone. According to the system, throat vibration signals and environment sound signals are collected, after preprocessing and alignment, high-frequency features are extracted from environment sound, compensation parameters are generated, voice waveforms are reconstructed in combination with a deep neural network model, and pure voice after noise reduction is output through self-adaptive post-processing. According to the invention, the voice clarity, naturalness and intelligibility are improved while the anti-noise advantage of throat vibration is kept.

An airway device includes an outertube and a scope channel partially enclosed by the outertube. An intraluminal space in the outertube, not occupied by the scope channel, provides a passageway for air flow to the patient. An esophageal cuff is positioned distally on the scope channel. When inflated, the esophageal cuff secures the airway device in the proximal esophagus of the patient and helps to prevent gastric reflux by mechanically blocking gastric content from entering into the larynx. An inflatable bladder is attached to an anterior surface of the scope channel between the esophageal cuff and a distal opening of the outertube. When inflated, the bladder forms a tubular ring that pushes against the epiglottis and / or other soft tissue towards a wall of the hypopharynx to produce an unhindered air passage into the patient's trachea.

The utility model belongs to the technical field of medical supplies, and particularly relates to a novel laryngeal anesthesia spraying device which comprises a medicine storage bin, the top of the medicine storage bin is fixedly communicated with an atomization controller, the top of the atomization controller is fixedly communicated with a medicine conveying pipe, an arc-shaped protective top cover is arranged outside the medicine conveying pipe, and the arc-shaped protective top cover is fixedly communicated with the medicine storage bin. The bottom of the arc-shaped protective top cover is fixedly connected with a connecting bottom plate, one end of the medicine conveying pipe extends to the outside of the arc-shaped protective top cover, and the outer end of the medicine conveying pipe fixedly communicates with a communicating pipe; according to the laryngeal anesthesia assisting device, the laryngeal area can be in an expanded state when a patient is anesthetized in the laryngeal area, the anesthesia area of laryngeal anesthesia is increased, anesthetic can uniformly cover more areas of the laryngeal area, in addition, saliva in the oral cavity of the patient can be collected when the patient is anesthetized, and the anesthetic effect of the laryngeal area is improved. Saliva in the oral cavity is prevented from entering the laryngeal region to bring anesthetic sprayed on the laryngeal region into the digestive tract.

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.

Provided in the present invention is a flexible laryngoscope for vocal cord fascia surgery, which flexible laryngoscope effectively solves the problems whereby during use, existing laryngoscopes are fixed in terms of form and shape, and have a support force that is unable to be freely adjusted, thereby easily causing excessive support or abrasion to the epiglottis and larynx, and the existing laryngoscopes cannot be flexibly adjusted, thereby resulting in poor applicability and practicability. The technical solution for solving the problems is as follows: the flexible laryngoscope comprises a handle, wherein a fixed cylinder is provided on the left side of the handle, and a plurality of support units are provided on the right side of the fixed cylinder; the plurality of support units form a flexible mechanism; each support unit comprises front and rear small plates, and two arc-shaped plates are provided between the two small plates; when the arc-shaped plates on the plurality of support units open simultaneously, the larynx can be dilated; the lower ends of the small plates in adjacent support units are hinged together, a lead screw is provided on the outer side of each small plate, nuts are provided on the lead screws, connecting rods are hinged to the nuts, and the upper ends of the connecting rods are hinged together with adjacent small plates; and when a plurality of lead screws rotate at the same time, the upper ends of two adjacent small plates gradually approach each other, such that the flexible mechanism has a curved arc-shaped structure.

A silicone implant is fixed onto the thyroid cartilage and the implant has a guide channel extending therethrough. The placement allows fixation to the cartilage by blade portions on opposite sides of the implant, with the guide channel being positioned in front of the muscles to be treated. The implant enables safe, accurate, and repeatable injections into internal laryngeal muscles under local anesthesia, and simplifies surgical access, increases accuracy, and reduces risks associated with traditional techniques.

A flexible liquid metal sensor and a voiced / unvoiced speech recognition system. The flexible liquid metal sensor attached to the throat is configured to detect a hybrid-modal signal consisting of laryngeal low-frequency muscle movements and acoustic vibrations during voiced or unvoiced speech of a person. By designing discrete and continuous sensor layouts to accurately capture the frequency of laryngeal vibrations during phonation and spatial distribution characteristics of muscle movements, pressure information in different directions and at different positions is measured. Laryngeal data acquisition and filtering are achieved by means of a signal acquisition and analysis system, so as to construct a relational dataset between laryngeal acoustic-vibration hybrid-modal signals and expressed speech semantics. By establishing a deep neural network training model based on time-frequency features to train the relational dataset, the content expressed by a person during voiced or unvoiced speech can be recognized, thereby meeting the requirements of persons with speech impairments and the general population for conveying the expressed content in environments where speech is impaired.

A larynx imaging device includes a needle, where a wall of the needle forms a channel within the needle. The device also includes a camera mounted within the channel of the needle on an inner surface of the wall. The camera is positioned within the needle such that the camera can capture one or more images of a subglottic space within a patient. The device also includes a light source mounted within the channel of the needle adjacent to the camera, where the light source provides illumination for the camera.

The invention relates to the technical field of movable laryngoscopes, in particular to a movable laryngoscope with a light supplementing function. According to the technical scheme, the laryngoscope comprises a handle, a display screen rotationally installed on the handle and a laryngoscope fixedly installed at the bottom of the handle and further comprises a guide pipe, the guide pipe is fixedly installed on the laryngoscope, one end of the guide pipe is provided with an input hole allowing the guide pipe to be inserted, and the other end of the guide pipe is provided with a steering mechanism. The steering mechanism adjusts the catheter end to point to the glottis direction. The direction of the head of the catheter is adjusted through the guide tube and the steering mechanism, so that the catheter is aligned with the glottis, the catheter can be directly inserted into the glottis after alignment, the moving catheter cannot make direct contact with the throat, and therefore the situation that the throat of a patient is stimulated is prevented; by adjusting the direction of the head of the catheter, the problem that the catheter is difficult to insert into the glottis is solved, the catheter is prevented from being difficult to insert, and the intubation success rate and the operation efficiency are improved.

The modularized bronchoscope sheath comprises a rear-end fixing body and a front-end detachable insertion part, a standardized rapid connection structure is arranged at the front end of the rear-end fixing body, the front-end detachable insertion part is rapidly connected and matched with the standardized rapid connection structure, and an upward-picking bent section of 15-30 degrees is arranged at the front end of the front-end detachable insertion part. Various lengths and outer diameter specifications can be set, through the modular split design, a hospital only needs to configure 2-3 sets of fixing bodies to cover the whole-scene clinical requirements, glottis picking and intubation can be completed through single-person operation due to the design of the front end upward-picking bent section, the success rate of initial intubation of a difficult airway is increased, and the laryngeal mucosa injury rate is reduced; and the method is suitable for full-scene application of conventional respiratory intervention operation and emergency treatment difficult airway management.

The inventions relate to noise-resistant underwater voice communication between users. For the purpose of such communication, a piezoceramic vibration transducer is positioned in the region of a user's larynx, a voice message from the user is received by the piezoceramic vibration transducer, the signal is digitized, cleaned of noise and converted into an encoded signal, the encoded signal is transmitted with the aid of a hydroacoustic modem to hydroacoustic modems of other users, and the analog signal is recreated and transmitted to an underwater earpiece. A system for implementing the above method is also claimed.

A Laryngeal oral airway (LOA) includes a mouthpiece flange defining two separate nostril-like openings in communication with separate elongated airways extending towards the larynx when in use. The nostril-like openings on the mouthpiece are spaced, shaped, and configured to snugly fit nasal prongs a nasal cannula therein, such that the nasal cannula is readily moveable between the patient's nostrils and the artificial nostril openings defined in the mouthpiece of the airway. The cannula is further secured by notches defined in the LOA.

A system for enhancing an augmented reality (AR) and / or virtual reality (VR) experience, includes a larynx member comprising a piezoelectric sensing array configured to capture analog waveforms representing movements of a user's larynx muscles while subvocalizing and a processor configured to convert the analog waveforms into subvocalization data. The system also includes an AR / VR enhancement device comprising a communication interface configured to receive the subvocalization data from the larynx member, a subvocalization machine learning module configured to process the subvocalization data to interpret a first set of user commands, a capacitive touch recognition surface configured to detect one or more gestures of the user. a gestural machine learning module configured to interpret the one more gestures as a second set of user commands, and a feedback device configured to provide real-time responses to the user, wherein the real-time responses include one or more of auditory, haptic, and / or visual feedback.

Provided is a formulation useful for treating sore throat, throaty cough, xerostomia, pharyngitis, laryngitis, postoperative pain, dysphagia, laryngeal granuloma, vocal optimization, laryngopharyngeal reflux or dysbiosis, wherein the formulation comprises: an aqueous solution comprising one or more active ingredients selected from the group consisting of marshmallow root, slippery elm extract, aloe vera extract, manuka honey, honey, holy basil, menthol, spearmint, capsaicin, propolis, curcumin, xylitol, turmeric, probiotics, and calendula, the aqueous solution being present as aerosolized particles in a range of 10 to 35 microns.

The invention belongs to the technical field of model animal preparation, and particularly relates to a pulmonary aspergillosis rat model construction method based on tracheal inoculation under laryngoscope direct view and application thereof. According to the invention, standardized immunosuppression is carried out on rats by using cyclophosphamide, and an immunodeficiency state conforming to a disease basis can be stably and repeatedly induced. Based on direct sight of the laryngoscope, the glottis structure of the rat is clear and visible, and the intubation process is visual and controllable. The technical threshold is obviously reduced, and the success rate and the operation repeatability of a beginner are improved; the method has the advantages that laryngeal injury and mistaken inoculation are avoided to the greatest extent, it is guaranteed that bacterial liquid is accurately fed into the trachea, neck operation wounds are avoided, non-specific inflammation interference is reduced, the uniformity, stability and repeatability of a model are improved, and the modeling success rate reaches 100%. The invention provides a disease research platform which is standardized, quantifiable, high in quality and highly associated with clinic, and can be used for screening the pulmonary aspergillosis treatment medicines and evaluating the effectiveness of the pulmonary aspergillosis treatment medicines.