9 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.

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.

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.

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.

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.