14 results about "Swallowing" patented technology

The application belongs to the technical field of dysphagia rehabilitation, and particularly relates to a cold stimulation device for dysphagia rehabilitation, which comprises a supporting column, a reciprocating electric telescopic rod coaxially and fixedly connected to one end of the supporting column, a semiconductor touch head fixedly connected to a telescopic end of the reciprocating electric telescopic rod, a biting seat fixedly connected to the supporting column, biting air bags fixedly and symmetrically connected to the biting seat, the biting air bags being communicated with the supporting column, and a detection tube fixedly connected to the biting seat. The oral cavity sealing mechanism automatically triggered by biting action can accurately detect the swallowing action according to the negative pressure of the oral cavity. After the effective swallowing action is detected, the stimulation can be paused through a delay start switch, the next round of training can be automatically started after the rest, and the timing and rhythm of each stimulation are ensured to be consistent with the physiological response. The normal exhalation can be realized while the oral cavity sealing space is formed, and the breathing safety is ensured.

The invention relates to the technical field of oral care, in particular to an unconscious patient oral foreign matter cleaning device which comprises a seat body, two fastening belts with one ends mounted on the front side and the rear side of the seat body respectively and a central airway tube mounted in a mounting shell at the head of the seat body, and an elastic air bag mounted at the head of the central airway tube. A cleaning module is mounted in the middle through a rotary operation pipe, and an adsorption part is arranged between the cleaning module and the rotary operation pipe; the cleaning control center is arranged at the tail of the central airway tube and connected with the cleaning module through a cleaning liquid tube and an air tube, and the problems that in the prior art, due to the fact that a patient does not have the autonomous swallowing and closing capacity, foreign matter easily enters the airway by mistake, choking is caused, and the safety risk is high are solved; the visual field in the oral cavity is poor, the operation space is narrow, and manual or conventional instruments are difficult to clean comprehensively; an airway protective isolation structure is lacked, and cleaning fluid easily enters the esophagus and the airway and cannot adapt to the special physiological status of the coma patient.

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.

The invention aims to provide a cerebral apoplexy swallowing assessment and extubation decision-making system based on ultrasound and video stream fusion, and the system comprises an ultrasound image collection module which focuses on the dynamic movement of tongue muscles, throat muscles, tongue bones and throat lacuna; the video stream acquisition module is used for calculating facial expression, oral activity and throat form change characteristics by using a motion tracking algorithm; the analysis module is used for analyzing spatial characteristics of muscle movement; identifying time sequence characteristics of the swallowing action; the evaluation and decision module is used for generating a swallowing function evaluation report; and the user interface and report output module is used for outputting an automatically generated swallowing function evaluation report to a clinician. The swallowing function can be evaluated in real time, noninvasively and accurately through a multi-modal data fusion technology in combination with a deep learning algorithm, a more reliable swallowing function evaluation basis is provided for clinicians, and rehabilitation treatment and intervention of stroke patients are helped.

The invention provides a dysphagia diagnosis data processing method and system. According to the method, original multi-source physiological signal data of a detected object in the swallowing process is obtained and preprocessed to obtain preprocessed signal data, candidate paragraph detection of a swallowing related event is executed based on the preprocessed signal data to obtain at least one candidate swallowing paragraph, and then the at least one candidate swallowing paragraph is detected according to the at least one candidate swallowing paragraph. And performing noise suppression and swallowing related acoustic component enhancement processing on each candidate swallowing section to obtain a noise-suppressed candidate swallowing section, and finally, extracting at least one group of acoustic characteristic parameters for representing a swallowing function state based on the noise-suppressed candidate swallowing section. Therefore, non-swallowing related background interference such as environment voice and equipment sound is effectively inhibited, the situation that conversation or equipment noise is mistakenly judged as a swallowing event is reduced, and the swallowing event detection accuracy is improved.

The invention belongs to the technical field of dysphagia rehabilitation, and particularly relates to a cold stimulation device for dysphagia rehabilitation, which comprises a support column, one end of the support column is coaxially and fixedly connected with a reciprocating electric telescopic rod, the telescopic end of the reciprocating electric telescopic rod is fixedly connected with a semiconductor touch head, the support column is fixedly connected with an occlusion seat, and the occlusion seat is fixedly connected with a rotary shaft. Occlusion air bags are symmetrically and fixedly connected to the occlusion seat, the occlusion air bags are communicated with the supporting column, and a detection tube is fixedly connected to the occlusion seat; by means of an oral cavity sealing mechanism automatically triggered by the occlusion action, the swallowing action can be accurately detected according to the oral cavity negative pressure, stimulation can be paused through the delay starting switch after the effective swallowing action is detected, the next round of training is automatically started after a rest, it is guaranteed that the time and the rhythm of each time of stimulation meet physiological response, and the training efficiency is improved. And normal expiration can be realized while an oral cavity closed space is formed, so that the breathing safety is guaranteed.

This invention relates to the field of medical device control technology and discloses a swallowing-triggered Eustachian tube inflation control system based on signal recognition. The system includes an electromyography (EMG) acquisition module, a nasal actuation module, a pressure sensing module, a gas storage module, an air pump module, a solenoid valve module, and a main control module. The EMG acquisition module acquires electrophysiological signals from the swallowing muscles; the pressure sensing module acquires nasal cavity pressure fluctuation signals and actual pressure data; the main control module confirms the effective swallowing cycle based on the received electrophysiological signals and pressure fluctuation signals, calculates the optimal ventilation timing, and determines the target conduction pulse width time. It then controls the solenoid valve module to open according to the target conduction pulse width time, quantitatively releasing compressed gas from the gas storage module into the user's nasal cavity. This invention achieves synchronous airflow triggering through physiological signal fusion and self-calibrated dynamic thresholds, and utilizes a bypass blind cavity and interruption depressurization mechanism to prevent cross-contamination and pressure damage.

The invention relates to the field of bionic machinery, in particular to bionic swallowing simulation equipment and a swallowing simulation method. The bionic swallowing simulation equipment comprises a rack; the injection module is arranged at the top of the rack; the injection module loads food; the feeding module is connected with the injection module; the bionic swallowing simulation mold comprises a food loading part, a throat pipe part and an esophagus part which are communicated with one another, the food loading part is directly connected with the feeding module; the esophagus part is provided with at least one contraction part; the wriggling modules are arranged on the two sides of the bionic swallowing simulation mold; the creeping module comprises a linear module installed on the rack in the height direction of the rack and a creeping assembly connected with the linear module. The peristaltic assembly is driven by the linear module to simulate the propelling effect of esophageal peristaltic waves; the at least one clamping module is mounted on the rack; the clamping module is arranged to clamp the contraction part. The device simulates the dynamic process of human swallowing, and has the advantages that the dynamic process of human swallowing can be accurately simulated, and the test precision is improved.

This invention provides a human swallowing action recognition system, method, electronic device, and medium. The human swallowing action recognition system includes: a flexible piezoelectric sensor for acquiring swallowing physiological signals of a target user, the flexible piezoelectric sensor being attached to the target user's throat; a signal acquisition module for transmitting the swallowing physiological signals to a lightweight neural network recognition model; and a lightweight neural network recognition model for real-time recognition of the swallowing physiological signals to obtain the corresponding swallowing action recognition result for the target user. The calculus convolution module in the lightweight neural network recognition model uses a high-dimensional convolution kernel to extract features from the swallowing physiological signals. Based on this, this invention, through the deep integration of a flexible piezoelectric sensor and a lightweight neural network, achieves non-invasive, highly sensitive swallowing action monitoring while enabling millisecond-level real-time classification and recognition at an edge device with extremely low power consumption.

The invention provides a hidden aspiration monitoring method and device based on multi-source sensing data fusion, electronic equipment and a storage medium, and relates to the technical field of artificial intelligence and computers. According to the implementation scheme, the method comprises the steps that multi-mode swallowing time sequence signals of a first monitoring object are collected, and the multi-mode swallowing time sequence signals comprise a swallowing audio signal, a swallowing throat vibration signal and a swallowing breathing signal; performing multi-modal feature fusion on the multi-modal swallowing time sequence signal to obtain a target feature sequence; swallowing identification, aspiration identification and cough event identification are respectively carried out on each sequence segment feature in the target feature sequence; and under the condition that the target sequence segmentation characteristics which are identified to have swallowing and aspiration and do not have the cough event are obtained, determining that the first monitoring object has hidden aspiration.

The invention discloses a post-stroke patient swallowing function evaluation and training instrument based on biofeedback, and belongs to the technical field of medical rehabilitation equipment. The device comprises a signal acquisition module, a signal processing module, a data analysis module, a feedback output module and a power management module. A 64-channel flexible electrode array is used for collecting electromyographic signals, a 9-axis inertial measurement unit is used for tracking six-degree-of-freedom movement of the throat, a double-channel microphone is used for collecting acoustic signals, and a double-channel pressure sensor is used for detecting pressure of tongue bones and thyroid cartilages. The electromyographic signals are reconstructed into a three-dimensional space-time thermodynamic diagram through radial basis function interpolation, and four modal data are fused through a deep learning model to achieve automatic swallowing phase recognition and anomaly detection. And visual, auditory and tactile three-channel real-time biological feedback training is provided. According to the invention, multi-dimensional accurate evaluation, multi-modal real-time feedback and intelligent adaptive training are realized, and the evaluation accuracy of the swallowing function and the rehabilitation training effect are improved.

This invention discloses a dental interdental cleaning device, which includes a handle body; a movable cylinder is slidably connected to the top of the handle body, and a cleaning head is provided at the front end of the movable cylinder. An adjustment component is provided at the top of the handle body and outside the movable cylinder, and a connecting component is provided at the front end of the movable cylinder and behind the cleaning head. Compared with existing interdental cleaning devices, this invention specifically solves three core defects of existing interdental cleaning devices: poor operability, insufficient locking reliability, and weak connection security. It not only overcomes the industry pain points of cumbersome length adjustment operation, inability to operate continuously with one hand, non-compliance with clinical treatment habits, and low treatment efficiency, but also eliminates the major safety hazards of locking failure, operation injury caused by loosening and falling of the cleaning head, and accidental swallowing or aspiration by patients.

This invention discloses a respiratory guidance device and its control method and system, relating to the field of medical device technology. The device includes a gas supply unit, a disposable lip-holding tube, an exhalation detection module, and a feedback module. The lip-holding tube has a middle lip-holding section with a breathing port. When the patient is in working condition, they hold this lip-holding section with their lips, the breathing port being located between the lips and outside the teeth, allowing the upper and lower teeth to close normally, achieving natural swallowing without stress on the masseter muscle. The gas supply unit provides a constant flow of clean gas, the exhalation detection module collects the patient's expiratory flow rate in real time, and the feedback module provides guidance prompts based on the expiratory status, helping the patient adjust to the correct oral breathing mode in real time. This invention, through its unique lip-holding tube design and intelligent feedback guidance, fundamentally solves the problem of nasal exhalation causing endoscope fogging during endoscopic examinations, significantly improving patient comfort and compliance, and can be extended to scenarios such as nebulizer therapy and postoperative monitoring.